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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 41 to 50 of 261 (0.16 seconds)Spelling suggestions: "subject:"colvent extraction"" "subject:"colvent axtraction""
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Solvent extraction of calcium and magnesiumKatekaru, James Y., 1934- January 1960 (has links)
No description available.
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| 42 |
Pitch Production Using Solvent Extraction of Coal: Suitability as Carbon Anode PrecursorMohammad Ali Pour, Mehdi Unknown Date
No description available.
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| 43 |
Hydrogen stripping of copper from loaded LIX 65NNavarro, Maria del Carmen January 1985 (has links)
No description available.
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| 44 |
Some aspects of trace analysis of metalsDangolle, Champa D. P. January 1996 (has links)
No description available.
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| 45 |
Pitch Production Using Solvent Extraction of Coal: Suitability as Carbon Anode PrecursorMohammad Ali Pour, Mehdi 11 1900 (has links)
Albertan coal has been used to produce extracts as precursor for production of anode coke. Coal extractability was studied using digestion with Tetralin in a 500 ml reactor. Different operating conditions were tried and optimum conditions were chosen for runs with coal-derived solvents. Extracts from runs with coal-derived solvents and their hydrotreated versions were distilled and heat treated to produce pitches as coke precursors. Coking experiments were performed using a molten salt bath furnace. Coal, solvents, pitches and cokes were characterized to study the effects of process chemistry on coke anisotropy. Coke anisotropy was studied using image analysis of polarized light optical micrographs and x-ray diffraction. Aromaticity of the pitch was found to be the key parameter controlling coke anisotropy. Solvent was found to be the most important factor contributing to pitch aromaticity. Heat treated products of high aromaticity yield the highest coke conversion and anisotropy. / Chemical Engineering
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| 46 |
Coal pyrolysis in a fixed bed reactorGonenc, Zubeyde Sermin January 1989 (has links)
No description available.
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| 47 |
Removal of cadmium from wet process phosphoric acid by cation exchangeBooker, Nicholas Anthony January 1989 (has links)
No description available.
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| 48 |
Estudo preliminar do fracionamento de terras raras medias e pesadas em grupos com extracao por solventesSOARES, PAULO S.M. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:37:40Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:00:21Z (GMT). No. of bitstreams: 1
05345.pdf: 9869797 bytes, checksum: 233848268ca6b451d04e82fb4874216e (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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| 49 |
Estudo para a extracao de uranio em acido fosforico comercialNOGUEIRA, ANGELA C.R. 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:31:52Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:09Z (GMT). No. of bitstreams: 1
02245.pdf: 2619284 bytes, checksum: 920d3ab52801f80334d14ea5aa1bf92b (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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| 50 |
Estudo da precipitacao continua de diuranato de amonio para producao de oxido de uranio (IV) ceramicoARAUJO, JOSE A. de 09 October 2014 (has links)
Made available in DSpace on 2014-10-09T12:23:09Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:03:28Z (GMT). No. of bitstreams: 1
00458.pdf: 3328296 bytes, checksum: d5c7186d59620ba04c5e89553bd39c20 (MD5) / Dissertacao (Mestrado) / IEA/D / Escola Politecnica, Universidade de Sao Paulo - POLI/USP
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