METHOD OF ZIRCONIUM AND CELTIUM SEPARATION
FIELD: chemistry.SUBSTANCE: invention relates to technology of rare metals, in particular to hydrometallurgy of zirconium and hafnium. Method of zirconium and hafnium separation includes obtaining zirconium and hafnium hydroxides at temperature, not higher than 30-35°C, dehydration of obtained zirco...
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| creator | NEVOROTIN VADIM KIRILLOVICH VAL'KOV ALEKSANDR VASIL'EVICH GLAGOVSKIJ EHDUARD MIKHAJLOVICH SHTUTSA MIKHAIL GEORGIEVICH |
| description | FIELD: chemistry.SUBSTANCE: invention relates to technology of rare metals, in particular to hydrometallurgy of zirconium and hafnium. Method of zirconium and hafnium separation includes obtaining zirconium and hafnium hydroxides at temperature, not higher than 30-35°C, dehydration of obtained zirconium and hafnium hydroxides, their dissolution in nitric acid and following extraction of zirconium by tributylphosphate extraction from obtained solution in backflow, water phase is removed from cell in the middle of cascade, nitric acid is added to it, and obtained solution is introduced into the following stage downstream water phase movement.EFFECT: invention ensures increase of zirconium separation, increase of cascade work stability and reduction of nitric acid consumption.4 cl, 5 tbl, 3 ex
Изобретение относится к технологии редких металлов, в частности к гидрометаллургии циркония и гафния. Способ разделения циркония и гафния включает получение гидроксидов циркония и гафния при температуре, не превышающей 30-35°С, обезвоживание полученных гидроксидов циркония и гафния, растворение их в азотной кислоте и последующее извлечение циркония экстракцией трибутилфосфатом из полученного раствора в противотоке, причем из ячейки в середине каскада выводят водную фазу, добавляют в нее азотную кислоту и полученный раствор вводят в следующую ступень по движению водной фазы. Изобретение обеспечивает повышение извлечения циркония, повышение стабильности работы каскада и уменьшение расхода азотной кислоты. 3 з.п. ф-лы, 5 табл., 3 пр. |
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Изобретение относится к технологии редких металлов, в частности к гидрометаллургии циркония и гафния. Способ разделения циркония и гафния включает получение гидроксидов циркония и гафния при температуре, не превышающей 30-35°С, обезвоживание полученных гидроксидов циркония и гафния, растворение их в азотной кислоте и последующее извлечение циркония экстракцией трибутилфосфатом из полученного раствора в противотоке, причем из ячейки в середине каскада выводят водную фазу, добавляют в нее азотную кислоту и полученный раствор вводят в следующую ступень по движению водной фазы. Изобретение обеспечивает повышение извлечения циркония, повышение стабильности работы каскада и уменьшение расхода азотной кислоты. 3 з.п. ф-лы, 5 табл., 3 пр.</description><language>eng ; rus</language><subject>CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; INORGANIC CHEMISTRY ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2013</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130920&DB=EPODOC&CC=RU&NR=2493105C1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20130920&DB=EPODOC&CC=RU&NR=2493105C1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NEVOROTIN VADIM KIRILLOVICH</creatorcontrib><creatorcontrib>VAL'KOV ALEKSANDR VASIL'EVICH</creatorcontrib><creatorcontrib>GLAGOVSKIJ EHDUARD MIKHAJLOVICH</creatorcontrib><creatorcontrib>SHTUTSA MIKHAIL GEORGIEVICH</creatorcontrib><title>METHOD OF ZIRCONIUM AND CELTIUM SEPARATION</title><description>FIELD: chemistry.SUBSTANCE: invention relates to technology of rare metals, in particular to hydrometallurgy of zirconium and hafnium. Method of zirconium and hafnium separation includes obtaining zirconium and hafnium hydroxides at temperature, not higher than 30-35°C, dehydration of obtained zirconium and hafnium hydroxides, their dissolution in nitric acid and following extraction of zirconium by tributylphosphate extraction from obtained solution in backflow, water phase is removed from cell in the middle of cascade, nitric acid is added to it, and obtained solution is introduced into the following stage downstream water phase movement.EFFECT: invention ensures increase of zirconium separation, increase of cascade work stability and reduction of nitric acid consumption.4 cl, 5 tbl, 3 ex
Изобретение относится к технологии редких металлов, в частности к гидрометаллургии циркония и гафния. Способ разделения циркония и гафния включает получение гидроксидов циркония и гафния при температуре, не превышающей 30-35°С, обезвоживание полученных гидроксидов циркония и гафния, растворение их в азотной кислоте и последующее извлечение циркония экстракцией трибутилфосфатом из полученного раствора в противотоке, причем из ячейки в середине каскада выводят водную фазу, добавляют в нее азотную кислоту и полученный раствор вводят в следующую ступень по движению водной фазы. 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Method of zirconium and hafnium separation includes obtaining zirconium and hafnium hydroxides at temperature, not higher than 30-35°C, dehydration of obtained zirconium and hafnium hydroxides, their dissolution in nitric acid and following extraction of zirconium by tributylphosphate extraction from obtained solution in backflow, water phase is removed from cell in the middle of cascade, nitric acid is added to it, and obtained solution is introduced into the following stage downstream water phase movement.EFFECT: invention ensures increase of zirconium separation, increase of cascade work stability and reduction of nitric acid consumption.4 cl, 5 tbl, 3 ex
Изобретение относится к технологии редких металлов, в частности к гидрометаллургии циркония и гафния. Способ разделения циркония и гафния включает получение гидроксидов циркония и гафния при температуре, не превышающей 30-35°С, обезвоживание полученных гидроксидов циркония и гафния, растворение их в азотной кислоте и последующее извлечение циркония экстракцией трибутилфосфатом из полученного раствора в противотоке, причем из ячейки в середине каскада выводят водную фазу, добавляют в нее азотную кислоту и полученный раствор вводят в следующую ступень по движению водной фазы. Изобретение обеспечивает повышение извлечения циркония, повышение стабильности работы каскада и уменьшение расхода азотной кислоты. 3 з.п. ф-лы, 5 табл., 3 пр.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD OF ZIRCONIUM AND CELTIUM SEPARATION |
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