发明名称 |
Reactive resins useful for precious metal recovery |
摘要 |
An improved process for the recovery of precious metal values is disclosed. By this process precious metals in the form of anionic complexes are contacted with a weak-base anion exchange resin capable of complexing with the anionic complex. Such weak-base anion exchange resins contain weak-base functionalities derived from linear or cyclic polyaminoalkylene amines which have more than 1 amine moiety and at least 3 carbon atoms in a 1,X-alkylene moiety or moieties separating at least 1 amine moiety from a second amine moiety (i.e., X is an integer greater than 2). |
申请公布号 |
PH26063(A) |
申请公布日期 |
1992.01.29 |
申请号 |
PH19730000360 |
申请日期 |
1987.11.17 |
申请人 |
THE DOW CHEMICAL |
发明人 |
WILLIAM I HARRIS;JAMES R STAHLBUSH |
分类号 |
B01J41/04;B01J45/00;C01C3/11;C01G7/00;C22B3/42;C22B11/00 |
主分类号 |
B01J41/04 |
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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