发明名称 |
EXTRACTION METHOD OF RARE-EARTH METALS FROM PHOSPHOGYPSUM |
摘要 |
FIELD: metallurgy.SUBSTANCE: invention can be used in the technology of obtaining the compounds of rare-earth metals at complex processing of apatites, and namely for obtaining of concentrate of rare-earth metals (REM) from phosphogypsum. Method involves sorption of rare-earth metals. At that, prior to sorption, phosphogypsum is crushed in water so that pulp is obtained in the ratio Solid : Liquid=1:(5-10). Sorption is performed by introducing to the obtained pulp of sorbent containing sulphate and phosphate functional groups, at the ratio of Solid : Sorbent=1:(5-10) and mixing during 3-6 h.EFFECT: increasing REM extraction degree to finished product.5 tbl, 5 ex |
申请公布号 |
RU2471011(C1) |
申请公布日期 |
2012.12.27 |
申请号 |
RU20110146510 |
申请日期 |
2011.11.16 |
申请人 |
OBSHCHESTVO S OGRANICHENNOJ OTVETSTVENNOST'JU "NAUCHNO-PROIZVODSTVENNOE PREDPRIJATIE URALKHIM" |
发明人 |
KOLJASNIKOV SERGEJ VJACHESLAVOVICH;BORISOV MIKHAIL MARTEM'JANOVICH;KIRILLOV EVGENIJ VLADIMIROVICH;RYBINA MARIJA LEONIDOVNA |
分类号 |
C22B59/00;C22B3/04;C22B3/24 |
主分类号 |
C22B59/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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