发明名称 |
METHOD OF EXTRACTING RARE-EARTH METALS FROM TECHNOLOGICAL AND PRODUCTIVE SOLUTIONS AND PULPS |
摘要 |
FIELD: metallurgy.SUBSTANCE: method of extracting rare-earth metals from solutions containing iron (III) and aluminium comprises sorption of rare-earth metals on sorbent. Ampholyte with iminodiacetic functional groups is used as said sorbent. Sorption is carried out after preliminary neutralisation or acidification of solution to pH 4-5 by whatever alkaline or acid agent to add ampholyte in obtained pulp with separation of solid fraction. Sorption is conducted at ampholyte:pulp ratio of 1:50-1:150, phase contact time of 3-6 h and in the presence of reducing agent.EFFECT: higher selectivity.5 tbl, 5 ex |
申请公布号 |
RU2484162(C2) |
申请公布日期 |
2013.06.10 |
申请号 |
RU20100154345 |
申请日期 |
2010.12.29 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "URAL'SKIJ FEDERAL'NYJ UNIVERSITET IMENI PERVOGO PREZIDENTA ROSSII B.N. EL'TSINA" |
发明人 |
RYCHKOV VLADIMIR NIKOLAEVICH;KIRILLOV EVGENIJ VLADIMIROVICH;SMIRNOV ALEKSEJ LEONIDOVICH;DEMENT'EV ALEKSEJ ANDREEVICH;POPONIN NIKOLAJ ANATOL'EVICH |
分类号 |
C22B59/00;C01F17/00;C22B3/24 |
主分类号 |
C22B59/00 |
代理机构 |
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代理人 |
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地址 |
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