| 发明名称 |
METHOD OF PREPARATION OF USED CATALYSTS INCLUDING CARRIER AND CONTAINING AT LEAST ONE NOBLE METAL FOR SUBSEQUENT EXTRACTION OF THIS METAL |
| 摘要 |
waste-free hydrometallurgy of noble metals; recovery of metals from used catalysts on carriers. SUBSTANCE: proposed method includes heat treatment under definite conditions. Heat treatment is conducted at temperature of 450 to 650 C, after which heat treatment at temperature of 700 to 1200 C is performed in reducing or oxidizing medium. EFFECT: increased degree of recovery of noble metals; enhanced purity. 4 cl, 1 tbl, 14 ex
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| 申请公布号 |
RU2154686(C1) |
申请公布日期 |
2000.08.20 |
| 申请号 |
RU19990103526 |
申请日期 |
1999.02.22 |
| 申请人 |
PETROVA ELENA ARSEN'EVNA;SAMAKHOV ALEKSANDR ALEKSANDROVICH;PARFENOV ANATOLIJ NIKOLAEVICH;MAKARENKO MIKHAIL GRIGOR'EVICH |
发明人 |
PETROVA E.A.;SAMAKHOV A.A.;PARFENOV A.N.;MAKARENKO M.G. |
| 分类号 |
C22B11/00;B01J23/96;C22B1/02;(IPC1-7):C22B11/00 |
主分类号 |
C22B11/00 |
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