Proefschrift--Rijksuniversiteit te Groningen, 2003. / La p. de titre porte en plus : "Stichting Rotterdam-Maaskant" Bibliogr. p. 391-394. Index. Résumé en anglais.

<p>Drawing upon Applicant-Attribution-Reaction Theory (AART) and research in the area ofjob applicant reactions, this study clarifies and underscores the influence of attributions on job applicant perceptions and behavioural reactions to staffing procedures and decisions. Overall, applicant attributions were influenced by: (a) experiencing a staffing process that satisfies/violates procedural justice rules; (b) receiving a favourable (selected) or unfavourable (rejected) selection outcome; and (c) receiving an explanation for a selection decision. Results further suggest that applicant attributions, influence applicant perceptions and behaviours. Consistent with AART's predictions, process fairness perceptions mediated relationships between applicant attributions and each of organizational perceptions, recommendation intentions, litigation intentions, job acceptance intentions, and reapplication intentions. Theoretical and practical implications for these findings are discussed.</p> / Thesis / Doctor of Philosophy (PhD)

The Fe(II) regeneration process is an important aspect of Alternate Anode Reaction Technology (AART) using Fe(II)/Fe(III)-SO2 reactions for copper hydrometallurgy; however little has been done to study it specifically. The process regenerates Fe(II) via Fe(III) reduction by SO2(aq), catalyzed by activated carbon particles. To better understand and improve the process, two studies have been conducted with respect to variable factors and their affects on the regeneration. A study of fundamental kinetics confirms that the regeneration reaction is mass transfer-controlled, requiring adsorption of reactants onto the catalyst surface for reaction. The reaction rate is limited by the diffusivity of Fe(III). Initial Fe(III) concentration and carbon particle size are determined to be the most influential factors on the rate under the condition studied. Furthermore, it is observed that flow rate may inhibit the reaction by reducing ion diffusivity. A rate expression for the regeneration is derived and experimentally validated, and the Fe(III) diffusivity is determined to be 1.1x10-7 cm2/s. An optimization problem is also developed and solved for the process, constrained by the requirement that negligible SO2 could be present in the process effluent. Before optimization, a relationship is developed between regeneration rate and variable factors. Again, carbon size and initial Fe(III) are the most influential factors on the regeneration rate, related to it linearly; temperature is significant with a squared relationship to the rate; initial SO2 is insignificant. Optimal conditions are found with minimum carbon particle size, maximum initial Fe(III) concentration, and moderate temperature. / Master of Science