This study investigates Game theory including economic theories related to agricultural production. Model creation simulating economical system is built upon theoretic starting points. Commodity production is simulated using game theory with searching for Nash equilibria. Commodity demand function is grounded on concept of Cournot game. System includes land trading based on sealed-bid auctions with second-price. This model is using external Gambit software which is freeware library for game theory computations. Model evaluation is located in Experiments section where model structure and truthfulness is tested.

The purpose of this study was to determine whether The Large Glass was a negation of women for Marcel Duchamp. The thesis is composed of five chapters. Chapter I is the introduction to the thesis. CHapter II includes a synopsis of the major interpretations of The Large Glass. Duchamp's statements in regard to The Large Glass are also included in Chapter II. Chapter III explains how The Large Glass works through the use of Duchamp's notes. Chapter IV investigates Duchamp's negation of women statement in several ways. His personal relationships with relatives including his wives and other women, and his early paintings of women were examined. His idea of indifference was seen within the context of the Dandy and his alter ego, Rrose Selavy as a Femme Fatale. His machine paintings are also seen as a part of his idea of detachment and negation of women. Detachment as an intellectual pursuit was probed with his life-long interest in chess. The Large Glass was then seen as not only showing inconographically a negation of women but also as being an intrinsic component of his life and his work.

Calls to protect Black women have garnered national attention, drawing attention to the axes of racialized and gendered violence that are central to this dissertation project: the intersecting mis/recognition of Black women’s vulnerability and affect within and outside of their own racial communities constrains their possibilities to seek repair and justice for harm. Baltimore community members used social media platforms to call attention to gendered violence, joining movements like Kimberlé Crenshaw’s #SayHerName and Tarana Burke’s #MeToo Movement to address the erasure of violent experiences of Black women and girls; yet the mis/recognition of their affective experiences persists through the societal focus on Black male vulnerability. Through careful ethnographic study with Baltimorean anti-gendered violence activists, Black gendered violence survivors, and Black community healers, this dissertation analyzes how these women and non-binary people mobilize emotions to construct memorial spaces, community-based movements, and their own lives in the midst of pervasive state and interpersonal violence. I investigate the affective and political processes of Black urban place-making, self-making, and memorialization to answer: How do Black women define their own subjectivity at the intersections of antiblack and gendered violence? How does their political mobilization of emotions such as fear and grief transform gendered and racialized understandings of affect? To answer these questions, I use a Black feminist care practice to examine the themes of haunting, violence, home, and care and to conceptualize new analytic tools for writing about violence against Black women. The first chapter of my dissertation undertakes a Black feminist reading of ethnographic interview data, Toni Morrison’s Beloved (1987), and Gayl Jones’s Corregidora (1975), examining themes of reproduction, violence, and slavery’s afterlife that ripple from the novels’ pages to my and my interlocutors’ lives. I locate the haunting inside and outside of the Black female body, and I discuss the particular way that Black trans life illuminates that haunting. In my second chapter, I explore the (im)possibility of gendered Black affect through a Black feminist mapping of the myriad practices Black people use to create home as a transitory, affective, symbolic, and metamorphic place. This chapter employs autoethnography and interlocutor photographs of emotional sites as analytical and methodological tools to answer its driving questions. The third chapter discusses Black gendered memorialization practices for victims of state-sanctioned and interpersonal violence. I develop my conceptualization of imagined (after)life and self power using ethnographic and archival data, using the aftermath of Korryn Gaines’s and Breonna Taylor’s state-sanctioned murders as primary texts. The fourth and final chapter of my dissertation focuses on Black anti-gendered violence activism and its challenges and failures in Baltimore. By examining the lived experiences of Black activist-organizers, I highlight the complexities inherent in the pursuit of Black liberation. Using a Black feminist abolitionist framework, I analyze photographs, art, and poetry from local artist-activists to illustrate how (after)lives of interpersonal violence survivors can be made radical. My analysis of the affective experiences of Black women and nonbinary people in Baltimore and the gendered politics of grievability in Black anti-violence movements ultimately demonstrates how these movements re-entrench white supremacist patriarchal norms that undermine the pursuit of Black liberation. Thus, we must turn to Black feminist abolitionist praxis to achieve liberation for all Black people.

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In dieser Arbeit wurde ein Sensorkonzept mit Hilfe der Si-basierten Lichtemitter (MOSLED) zum Östrogennachweis in wässrigen Lösungen entwickelt. Das Sensorkonzept basiert auf einer direkten Fluoreszenzanalyse und besteht aus der Anordnung der Bio-Komponenten und dem Verfahren zu ihrer Herstellung sowie dem eigentlichen Meßverfahren. Die Anordnung besteht aus drei Teilen: die Funktionalisierung der MOSLED-Oberfläche, die Immobilisierung des hER_-Rezeptors und die Herstellung der Referenzlösung. Den Schwerpunkt dieser Arbeit bildet die Ausführung dieser drei Teile. Die Funktionalisierung der SiO2-Oberfläche der MOSLED wurde mit Hilfe eines im Rahmen dieser Arbeit entwickelten SSC (Spraying Spin Coating)- Verfahrens realisiert. Die Ausgangsmaterialien dieses Verfahrens sind organofunktionelle Silangruppen mit drei unterschiedlichen funktionellen Gruppen, nämlich die Amino-, Carboxyl- und die Thiolgruppen. Die Optimierung dieser Methode erfolgte mittels der zwei Silangruppen APMS ((3-Aminopropyl)trimethoxysilane und Triamino-APMS (N-[3-(Trimethoxysilyl)propyl]ethylenediamine mit der gleichen Molekülstruktur, aber mit einer unterschiedlichen Anzahl an funktionellen Gruppen. Diese Resultate wurden mit in der Literatur beschriebenen Verfahren verglichen. Die Optimierung der SSC-Methode wurde zuerst auf einfache SiO2-Oberflächen und dann auf der Oberfläche der MOSLED angewendet. Die Proben wurden mit Hilfe üblicher Methoden der Oberflächenphysik- wie FTIR-, Raman- und XPS-Spektroskopie untersucht. Die Oberflächenrauhigkeit wurde mittels AFM-Spektroskopie ermittelt, deren Aufnahmen eine glatte Oberfläche bei den mit der SSC-Methode silanisierten Proben zeigen. Während die Hydrophobizität der funktionalisierten SiO2-Oberflächen zunimmt, sinkt dabei die Oberflächenenergie, welche die Anbindung eines hER_-Rezeptors mit großer Bindungsenergie begünstigt. Zur Immobilisierung des hER_-Rezeptors wurde dieser erst an das Hüllenmolekül des QDots R-655-Farbstoffs gebunden und anschließend an der SSC-silanisierten SiO2-Oberflächen adsorbiert. Der Anteil der immobilisierten Rezeptoren wurde mittels PL-Messung kontrolliert. Eine andere Immobilisierungstrategie des hER_-Rezeptors an die SiO2-Oberfläche kann mit Hilfe eines Aminosäure-Derivates um den Rezeptor realisiert werden. Eine Adsorption der Lysinaminosäure an die SSC-APMS silanisierten SiO2- Oberflächen als Funktion des pH-Wertes wurde durchgeführt, und der Adsorbatsanteil des Lysins mittels XPS-Messung durch die Bindungsenergien der Energieniveaus C1s und N1s berechnet. Eine Referenzlösung mit QDots R800-Farbstoff markierten Östrogenmolekülen kommt zum Einsatz. Dabei wird die Position 17 des β-Estradiolmoleküls, welches mit einem N-Hydroxysuccinimide Derivat versehen ist, an das Hüllenmolekül des QDots R800-Farbstoff gebunden, sodass der Phenolring des β-Estradiols frei bleibt. Insbesondere ist bei den FTIR-Spektren eine nichtgebunden OH-Gruppe des β-Estradiolmoleküls gut erkennbar. Das gesamte Sensorkonzept wurde an zwei mit Östrogen mit einer Konzentration von 1mM und 1μM versetzten Wasserproben getestet. Die Anordnung der Bio-Komponenten wurde mittels PL nachgewiesen. Der Östrogennachweis wurde mit Hilfe des Ge- und Tb-basierten Lichtemitters demonstriert. / A sensor concept for estrogen detection in waterish solutions by Silicon based light emitters (MOSLED) was developed. This concept is based on direct fluorescence analysis and consists of a certain arrangement of the bio- components and their fabrication methods as well as the measurements protocol, which consists of for main steps: Passing the prepared MOSLED surface by the water sample, a washing step, passing the MOSLED surface by the reference solution, and the final optical measurement. The arrangement consists of three parts: the functionalisation of the MOSLEDs surface, the immobilization of the hERff receptor und finally the fabrication of the reference solution. The focus of this work is set on the achievement of these three parts. The functionalisation of the SiO2-surface of the MOSLED was realized by means of the new developed SSC (Spraying Spin Coating) method. The chemical precursor of this method are the organofunctional silane groups with three different functional groups, namely the amino-, carboxyl-, and thiolgroups. The optimization of the procedure was investigated with two types of silane groups APMS ((3-Aminopropyl)trimethoxysilane und Triamino-APMS (N-[3-(Trimethoxysilyl)propyl]ethylenediamine), which have the same molecular structure but a different number of functional groups per molecule. These results have been compared with those of the literature. The optimization of the SSC-method was analyzed by means of standard surface science techniques like FTIR-, Raman-, and XPS-spectroscopy. The surface roughness was applied by using AFM-spectroscopy, which showed a smooth surface by the samples treated with the SSC-method. Whereas the hydrophobicity of the functionalized SiO2 surface increases, the surface energy decreases, which favours the binding of a hERff receptor with large binding energy. In order to immobilize the hERff receptor at the surface, the receptor was bound to the molecular shell of the QDots655-dye and finally adsorbed to the silanized SiO2 surfaces. The fraction of the immobilized hERff receptors was controlled via PL-measurements. Another labelling strategy to immobilize the receptor at the SiO2 surface can be realized by using the amino acid as derivate to modify the receptor. For this aim the adsorption of the lysine at silanized SiO2 surfaces was investigated as function of the pH-value. The adsorbent part of the lysine was calculated via XPS by measuring the binding energy of both energy levels C1s and N1s . The reference solution with QDots800-dye marked estrogen molecules was used. The optimal binding was achieved by attaching the molecular shell of the QDots 800-dye to position 17 of the β-Estradiol molecule, which contains of a N-Hydroxysuccinimid derivate so that the phenol ring of the β-Estradiol remains free. In particular the FTIR-spectra showed the non-binding OH-groups of the β-Estradiol molecule. The whole concept of the sensor was tested at two water samples containing estrogen in a concentration of 1mM and 1μM. The adjustment of the Biokomponents was proven by PL, and the estrogen detection was demonstrated by using the Ge- and Tb-based light emitters.

This diploma thesis deals with the opinions of teachers on the inclusion of competitive games in the nursery environment. The aim of the thesis is to find and analyze the opinions of a selected sample of teachers on this issue. The work is divided into four main chapters. The introductory chapters are devoted to the concept of the game of various authors and authorities, to the place of preschool child play in the environment of the kindergarten and also to the separate problems of the competitive game. The main part of the thesis is the analysis and evaluation of the research carried out. The essence of the empirical part is qualitative research. The data acquisition method is a semi-structured interview, through which educators working at the tertiary level of education are asked to include competing games in nursery schools.

In dieser Arbeit wurde ein Sensorkonzept mit Hilfe der Si-basierten Lichtemitter (MOSLED) zum Östrogennachweis in wässrigen Lösungen entwickelt. Das Sensorkonzept basiert auf einer direkten Fluoreszenzanalyse und besteht aus der Anordnung der Bio-Komponenten und dem Verfahren zu ihrer Herstellung sowie dem eigentlichen Meßverfahren. Die Anordnung besteht aus drei Teilen: die Funktionalisierung der MOSLED-Oberfläche, die Immobilisierung des hER_-Rezeptors und die Herstellung der Referenzlösung. Den Schwerpunkt dieser Arbeit bildet die Ausführung dieser drei Teile. Die Funktionalisierung der SiO2-Oberfläche der MOSLED wurde mit Hilfe eines im Rahmen dieser Arbeit entwickelten SSC (Spraying Spin Coating)- Verfahrens realisiert. Die Ausgangsmaterialien dieses Verfahrens sind organofunktionelle Silangruppen mit drei unterschiedlichen funktionellen Gruppen, nämlich die Amino-, Carboxyl- und die Thiolgruppen. Die Optimierung dieser Methode erfolgte mittels der zwei Silangruppen APMS ((3-Aminopropyl)trimethoxysilane und Triamino-APMS (N-[3-(Trimethoxysilyl)propyl]ethylenediamine mit der gleichen Molekülstruktur, aber mit einer unterschiedlichen Anzahl an funktionellen Gruppen. Diese Resultate wurden mit in der Literatur beschriebenen Verfahren verglichen. Die Optimierung der SSC-Methode wurde zuerst auf einfache SiO2-Oberflächen und dann auf der Oberfläche der MOSLED angewendet. Die Proben wurden mit Hilfe üblicher Methoden der Oberflächenphysik- wie FTIR-, Raman- und XPS-Spektroskopie untersucht. Die Oberflächenrauhigkeit wurde mittels AFM-Spektroskopie ermittelt, deren Aufnahmen eine glatte Oberfläche bei den mit der SSC-Methode silanisierten Proben zeigen. Während die Hydrophobizität der funktionalisierten SiO2-Oberflächen zunimmt, sinkt dabei die Oberflächenenergie, welche die Anbindung eines hER_-Rezeptors mit großer Bindungsenergie begünstigt. Zur Immobilisierung des hER_-Rezeptors wurde dieser erst an das Hüllenmolekül des QDots R-655-Farbstoffs gebunden und anschließend an der SSC-silanisierten SiO2-Oberflächen adsorbiert. Der Anteil der immobilisierten Rezeptoren wurde mittels PL-Messung kontrolliert. Eine andere Immobilisierungstrategie des hER_-Rezeptors an die SiO2-Oberfläche kann mit Hilfe eines Aminosäure-Derivates um den Rezeptor realisiert werden. Eine Adsorption der Lysinaminosäure an die SSC-APMS silanisierten SiO2- Oberflächen als Funktion des pH-Wertes wurde durchgeführt, und der Adsorbatsanteil des Lysins mittels XPS-Messung durch die Bindungsenergien der Energieniveaus C1s und N1s berechnet. Eine Referenzlösung mit QDots R800-Farbstoff markierten Östrogenmolekülen kommt zum Einsatz. Dabei wird die Position 17 des β-Estradiolmoleküls, welches mit einem N-Hydroxysuccinimide Derivat versehen ist, an das Hüllenmolekül des QDots R800-Farbstoff gebunden, sodass der Phenolring des β-Estradiols frei bleibt. Insbesondere ist bei den FTIR-Spektren eine nichtgebunden OH-Gruppe des β-Estradiolmoleküls gut erkennbar. Das gesamte Sensorkonzept wurde an zwei mit Östrogen mit einer Konzentration von 1mM und 1μM versetzten Wasserproben getestet. Die Anordnung der Bio-Komponenten wurde mittels PL nachgewiesen. Der Östrogennachweis wurde mit Hilfe des Ge- und Tb-basierten Lichtemitters demonstriert. / A sensor concept for estrogen detection in waterish solutions by Silicon based light emitters (MOSLED) was developed. This concept is based on direct fluorescence analysis and consists of a certain arrangement of the bio- components and their fabrication methods as well as the measurements protocol, which consists of for main steps: Passing the prepared MOSLED surface by the water sample, a washing step, passing the MOSLED surface by the reference solution, and the final optical measurement. The arrangement consists of three parts: the functionalisation of the MOSLEDs surface, the immobilization of the hERff receptor und finally the fabrication of the reference solution. The focus of this work is set on the achievement of these three parts. The functionalisation of the SiO2-surface of the MOSLED was realized by means of the new developed SSC (Spraying Spin Coating) method. The chemical precursor of this method are the organofunctional silane groups with three different functional groups, namely the amino-, carboxyl-, and thiolgroups. The optimization of the procedure was investigated with two types of silane groups APMS ((3-Aminopropyl)trimethoxysilane und Triamino-APMS (N-[3-(Trimethoxysilyl)propyl]ethylenediamine), which have the same molecular structure but a different number of functional groups per molecule. These results have been compared with those of the literature. The optimization of the SSC-method was analyzed by means of standard surface science techniques like FTIR-, Raman-, and XPS-spectroscopy. The surface roughness was applied by using AFM-spectroscopy, which showed a smooth surface by the samples treated with the SSC-method. Whereas the hydrophobicity of the functionalized SiO2 surface increases, the surface energy decreases, which favours the binding of a hERff receptor with large binding energy. In order to immobilize the hERff receptor at the surface, the receptor was bound to the molecular shell of the QDots655-dye and finally adsorbed to the silanized SiO2 surfaces. The fraction of the immobilized hERff receptors was controlled via PL-measurements. Another labelling strategy to immobilize the receptor at the SiO2 surface can be realized by using the amino acid as derivate to modify the receptor. For this aim the adsorption of the lysine at silanized SiO2 surfaces was investigated as function of the pH-value. The adsorbent part of the lysine was calculated via XPS by measuring the binding energy of both energy levels C1s and N1s . The reference solution with QDots800-dye marked estrogen molecules was used. The optimal binding was achieved by attaching the molecular shell of the QDots 800-dye to position 17 of the β-Estradiol molecule, which contains of a N-Hydroxysuccinimid derivate so that the phenol ring of the β-Estradiol remains free. In particular the FTIR-spectra showed the non-binding OH-groups of the β-Estradiol molecule. The whole concept of the sensor was tested at two water samples containing estrogen in a concentration of 1mM and 1μM. The adjustment of the Biokomponents was proven by PL, and the estrogen detection was demonstrated by using the Ge- and Tb-based light emitters.

[ES] Esta Tesis Doctoral se centra en la recuperación mediante electrodeposición del Sb presente en un efluente residual proveniente de la metalurgia del cobre. El efluente en el que se basa este estudio se produce en el proceso de regeneración con HCl concentrado de las resinas de intercambio iónico de una de las subetapas del electro-refinado del cobre. Se trata de un electrolito ácido que contiene diversas impurezas, entre las que destacan, Sb y Bi, que son considerados materias primas críticas por la Unión Europea, debido al riesgo de suministro que presentan y a su importancia en la economía. El objetivo de esta Tesis es la recuperación del Sb y la reutilización del HCl. Para alcanzar ambos propósitos se ha estudiado el empleo de la electrodeposición como operación de separación para el tratamiento del efluente. Este proceso se ha investigado mediante técnicas electroquímicas, en particular, voltametría cíclica y de barrido lineal. En primer lugar, se ha realizado el estudio con disoluciones sintéticas que emulan el efluente generado en las metalurgias chilenas. La caracterización electroquímica de la disolución de Sb en medio HCl ha evidenciado que la reducción del Sb(III) a Sb metálico está limitada por la transferencia de materia y que una concentración elevada de HCl favorece la recuperación del Sb. Los ensayos de electrodeposición han destacado la relevancia de las reacciones secundarias, la reacción de evolución del hidrógeno (HER) y la generación de cloro, y su influencia negativa sobre la deposición de Sb. La HER tiene lugar en el cátodo y conlleva la generación de burbujas de hidrógeno a elevadas densidades de corriente, que reducen la superficie útil del electrodo de trabajo e incluso causan el desprendimiento del depósito de Sb. Por su parte, la generación de cloro gas en el ánodo provoca la redisolución de los depósitos de Sb desprendidos a causa de la HER. Tras la realización de estos ensayos se ha concluido que se puede aumentar la tasa de recuperación de Sb si se tienen mayores concentraciones del elemento en la disolución o si se mejoran las condiciones hidrodinámicas. Se ha analizado también cómo influye la presencia de Bi en la disolución sintética durante la electrodeposición del Sb. El potencial de reducción de ambos elementos es similar, lo que implica que la recuperación individual de Sb sea compleja. No obstante, si se trabaja bajo condiciones en las que no se supere la densidad de corriente límite del sistema, se logra una elevada selectividad hacia el Sb. Si la concentración de Bi en la disolución es superior a la de Sb, se electrodepositan ambos elementos, pero se logra un elevado valor de eficiencia de corriente debido a que la influencia de la HER sobre el Bi no es tan fuerte. A continuación, se ha estudiado la aplicación de las técnicas previamente analizadas con un efluente real, facilitado por una empresa española. Se ha verificado que las conclusiones obtenidas con las disoluciones sintéticas son aplicables al efluente real. En particular, se ha confirmado que, al aumentar la densidad de corriente aplicada, la deposición de Sb se ve mermada debido a la relevancia del resto de reacciones: la reducción de los demás elementos y la evolución del medio. Los depósitos obtenidos contienen algunos de los elementos presentes en el efluente real: Sb, Bi, As y Cu, siendo mayoritario el primero. Como resultado, se ha concluido que es posible purificar el HCl mediante la electrodeposición de los elementos contenidos en el electrolito. Finalmente, se ha planteado la posibilidad de sustituir el HCl empleado como regenerante por un disolvente eutéctico profundo, debido a la alta solubilidad de metales y su procedencia de fuentes renovables. En particular, la investigación se ha llevado a cabo con la oxalina, la cual presenta una elevada capacidad de disolución para el Sb y una amplia ventana de potencial que beneficiaría la aplicación de la técnica de electrodeposición para la recuperación del Sb. / [CA] Esta Tesi Doctoral se centra en la recuperació mitjançant electrodeposició del Sb present en un efluent residual provinent de la metal·lúrgia del coure. L'efluent en què es basa este estudi es produïx en el procés de regeneració amb HCl concentrat de les resines d'intercanvi iònic d'una de les subetapes de l'electro-refinat del coure. Es tracta d'un electròlit àcid que conté diverses impureses, entre les quals destaquen, Sb i Bi, que són considerats matèries primeres crítiques per la Unió Europea, a causa del risc de subministrament que presenten i a la seua importància en l'economia. L'objectiu d'esta Tesi és la recuperació del Sb i la reutilització de l'HCl. Per assolir aquests dos propòsits s'ha estudiat l'ús de l'electrodeposició com a operació de separació per al tractament de l'efluent. Este procés s'ha investigat mitjançant tècniques electroquímiques, en particular, voltametria cíclica i de rastreig lineal. En primer lloc, s'ha realitzat l'estudi amb dissolucions sintètiques que emulen l'efluent generat a les metal·lúrgies xilenes. La caracterització electroquímica de la dissolució de Sb en medi HCl ha evidenciat que la reducció del Sb(III) a Sb metàl·lic està limitada per la transferència de matèria i que una concentració elevada de HCl afavorix la recuperació del Sb. Els assajos d'electrodeposició han destacat la rellevància de les reaccions secundàries, la reacció d'evolució de l'hidrogen (HER) i la generació de clor, i la seua influència negativa sobre la deposició de Sb. La HER té lloc al càtode i comporta la generació de bambolles d'hidrogen a elevades densitats de corrent, la qual cosa reduïx la superfície útil de l'elèctrode de treball i fins i tot causa el despreniment del depòsit de Sb. Per la seua banda, la generació de clor gas a l'ànode provoca la redissolució dels depòsits de Sb despresos a causa de la HER. Després de la realització d'estos assajos s'ha conclòs que es pot augmentar la taxa de recuperació de Sb si es tenen majors concentracions de l'element en la dissolució o si es milloren les condicions hidrodinàmiques. S'ha analitzat també com influïx la presència de Bi en la dissolució sintètica durant l'electrodeposició del Sb. El potencial de reducció dels dos elements és similar, la qual cosa implica que la recuperació individual de Sb siga complexa. No obstant això, si es treballa sota condicions en què no se supere la densitat de corrent límit del sistema, s'aconseguix una elevada selectivitat cap al Sb. Si la concentració de Bi en la dissolució és superior a la de Sb, s'electrodepositen ambdós elements, però s'aconseguix un elevat valor d'eficiència de corrent pel fet que la influència de la HER sobre el Bi no és tan forta. A continuació, s'ha estudiat l'aplicació de les tècniques prèviament analitzades amb un efluent real, facilitat per una empresa espanyola. S'ha verificat que les conclusions obtingudes amb les dissolucions sintètiques són aplicables al efluent real. En particular, s'ha confirmat que, en augmentar la densitat de corrent aplicada, la deposició de Sb es veu minvada a causa de la rellevància de la resta de reaccions: la reducció dels altres elements i l'evolució del medi. Els depòsits obtinguts contenen alguns dels elements presents en el efluent real: Sb, Bi, As i Cu, sent majoritari el primer. Com a resultat, s'ha conclòs que és possible purificar l'HCl mitjançant l'electrodeposició dels elements continguts en l'electròlit. Finalment, s'ha plantejat la possibilitat de substituir l'HCl emprat com regenerant per un dissolvent eutèctic profund, a causa de l'alta solubilitat de metalls i la seua procedència de fonts renovables. En particular, la investigació s'ha dut a terme amb l'oxalina, la qual presenta una elevada capacitat de dissolució per al Sb i una àmplia finestra de potencial que beneficiaria l'aplicació de la tècnica d'electrodeposició per a la recuperació del Sb captat durant el procés de regeneració de les resines. / [EN] This Doctoral Thesis focuses on the recovery by electrodeposition of Sb present in an effluent from the copper metallurgy. The effluent on which this study is based is generated during the regeneration with concentrated hydrochloric acid of the ion exchange resins used in one of the sub-stages of copper electro-refining. It is an acid electrolyte containing several impurities, among them, Sb and Bi, which are considered critical raw materials by the European Union due to their supply risk and economic relevance. The aim of this Thesis is the recovery of Sb and reuse of HCl. To achieve both objectives, electrodeposition has been studied as a separation operation for the treatment of the effluent. This operation has been investigated through electrochemical techniques, primarily, cyclic and linear sweep voltammetry. First, the study has been conducted with synthetic solutions emulating the effluent generated in the Chilean metallurgy industries. The electrochemical characterization of the Sb solution in the HCl medium has shown that, mass-transfer limits the reduction of Sb(III) to metallic Sb and a high HCl concentration favors the recovery of Sb. From the electrodeposition tests the relevance and negative influence on Sb deposition of the secondary reactions, the hydrogen evolution reaction (HER) and the chlorine generation, has been proven. The HER occurs at the cathode and involves the generation of hydrogen bubbles at high current densities, which decrease the effective surface area of the working electrode and even cause the detachment of the Sb deposits. The chlorine generation at the anode leads to the redissolution of the Sb deposits detached by the HER. After conducting these experiments, it has been concluded that it is possible to increase the Sb recovery rate, if higher concentrations of this element are present in the solution or the hydrodynamic conditions of the electrodeposition process are improved. The influence of the presence of Bi in the synthetic solution on the Sb electrodeposition has also been investigated. The reduction potential of both elements is similar, implying that the individual recovery of Sb by electrodeposition is challenging. However, if the operating conditions do not imply exceeding the limiting current density of the system, a high electrodeposition selectivity towards Sb is achieved. If the concentration of Bi in the solution is higher than that of Sb, the simultaneous electrodeposition of both elements takes place, but, on the contrary, a high value of current efficiency is obtained because the influence of the HER on Bi reduction is not as significant as that on Sb deposition. The application of the previously analyzed techniques has been studied with a real effluent, that was provided by a Spanish company. It has been proven that the conclusions obtained with the synthetic solutions can be applied to a real effluent. It has been confirmed that, as the applied current density increases, the Sb deposition worsens due to the relevance of the other reactions that take place during the process: the reduction of the other elements and the evolution of the medium. The deposits obtained contain some elements present in the real effluent: Sb, Bi, As and Cu, the most significant being the first. From this study, it has been concluded that purifying the HCl by removing the elements contained in the electrolyte via electrodeposition is possible. Finally, the possibility of replacing the HCl used as a regenerant with a deep eutectic solvent has been considered based on their properties, among which are a high solubility of metals and their synthesis from renewable sources. In particular, the research has been carried out with oxaline, which presents a high dissolution capacity for Sb and a wide potential window that would benefit the application of the electrodeposition technique to recover Sb captured during the resins regeneration process. / Me gustaría agradecer la financiación a la Agencia Estatal de Investigación (AEI/10.13039/501100011033) (España) bajo el proyecto PCI2019-103535, gracias al cual he podido desarrollar la presente Tesis Doctoral, y a FEDER Una manera de hacer Europa / Hernández Pérez, L. (2024). Estudio electroquímico para la recuperación de antimonio de efluentes del electro-refinado de cobre por electrodeposición [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/203892