THE EXTRACTION OF GOLD FROM CYANIDE SOLUTIONS USING MODERATE BASE POLYAMINE ION-EXCHANGE RESINS

被引：22

作者：

HARRIS, WI

STAHLBUSH, JR

PIKE, WC

STEVENS, RR

机构：

[1] Liquid Separations Research, The Dow Chemical Company, Midland, MI 48674

来源：

REACTIVE POLYMERS | 1992年 / 17卷 / 01期

关键词：

GOLD CYANIDE; ION EXCHANGE RESINS; DIAMINOPROPANE; POLYAMINE; HYDROMETALLURGY; DIAMINOMETHYLPENTANE;

D O I：

10.1016/0923-1137(92)90566-K

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two polyamine moderate base resins were synthesized from 1,3-diaminopropane or 2,4-diamino-2-methylpentane and chloromethylated styrene-divinylbenzene copolymers. These resins were evaluated for gold recovery from cyanide solutions. The effects of solution pH on the resin gold loadings were determined over the pH range 5-12. The selectivities of the resins for gold cyanide over base metal cyanides were determined. These moderate base polyamine resins were compared against dimethylamine type resins with high and low salt splitting capacity for gold cyanide recovery. The resins possess good selectivities for gold, good loading capacities, good elution properties, and can operate at the pH of most leaching streams without acid adjustment.

引用

页码：21 / 27

页数：7

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