发明名称 |
METHOD OF PRODUCING SOLID EXTRACTION AGENTS FOR EXTRACTING RARE METALS FROM ACIDIC SOLUTIONS |
摘要 |
FIELD: chemistry. ^ SUBSTANCE: present invention relates to methods of producing solid extraction agents of metal salts for extraction chromatography and hydrometallurgy. The invention describes a method of producing solid extraction agents for extracting rare metals from acidic solutions, involving radical polymerisation of styrene and divinylbenzene in the presence of an extraction agent and a polymerisation initiator with dispersion in an aqueous starch solution and subsequent extraction of the extraction agent. The method is distinguished by that the extraction agent used is cyclic polyester dissolved in an organic solvent or a mixture of organic solvents in the ratio styrene : divinylbenzene : polyester = 0.80 - 0.83 - 0.57 - 0.60 - 1.0 - 1.1. ^ EFFECT: obtaining a solid extraction agent for extracting rare metals from sulphuric acid solutions, which is characterised by high extraction ratio and selectivity. ^ 3 cl, 1 tbl, 2 ex |
申请公布号 |
RU2395529(C1) |
申请公布日期 |
2010.07.27 |
申请号 |
RU20080146800 |
申请日期 |
2008.11.26 |
申请人 |
INSTITUT KHIMII TVERDOGO TELA URO RAN |
发明人 |
SHIROKOVA ALLA GENNAD'EVNA;JATSENKO SERGEJ PAVLOVICH |
分类号 |
C08F2/24;C08F212/08;C22B59/00 |
主分类号 |
C08F2/24 |
代理机构 |
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代理人 |
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地址 |
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