发明名称 |
METHOD FOR EXTRACTION OF PALLADIUM (II) FROM WASTED CATALYSTS |
摘要 |
FIELD: hydrometallurgy. ^ SUBSTANCE: the invention relates to hydrometallurgy of precious metals and can be used to extract palladium from wasted catalysts, including catalysts of low-temperature oxidation of carbon oxide (II) based on -Al2O3, containing palladium chloride (II) and cupric bromide (II). The method includes acid leaching of palladium from wasted catalysts from the chloride solution. Furthermore, the acid leaching is carried out by 1 M solution of hydrochloric acid. The resulting solution is diluted with water to pH 1. The sorption of palladium is carried out from the diluted solution using chemically modified silica containing grafted groups of -aminopropyltriethoxysilane. ^ EFFECT: increased amount of extracted palladiumusing a cheap nitrogen-containing sorbent, the high speed of the process and the possibility to regenerate the sorbent. ^ 4 tbl |
申请公布号 |
RU2442833(C1) |
申请公布日期 |
2012.02.20 |
申请号 |
RU20100141709 |
申请日期 |
2010.10.12 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "MOSKOVSKIJ GOSUDARSTVENNYJ UNIVERSITET TONKIKH KHIMICHESKIKH TEKHNOLOGIJ IMENI M.V. LOMONOSOVA" (MITKHT) |
发明人 |
VOLCHKOVA ELENA VLADIMIROVNA;BORJAGINA IRINA VALENTINOVNA;MISHCHIKHINA ELENA ALEKSANDROVNA;BUSLAEVA TAT'JANA MAKSIMOVNA;EHRLIKH GENRIKH VLADIMIROVICH;LISICHKIN GEORGIJ VASIL'EVICH |
分类号 |
C22B3/10;C22B3/24;C22B11/00 |
主分类号 |
C22B3/10 |
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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