Removing and stabilizing as from copper refining circuits by hydrothermal processing

被引：84

作者：

Monhemius, AJ ^{[1
]}

Swash, PM ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Royal Sch Mines, London SW7 2BP, England

来源：

JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY | 1999年 / 51卷 / 09期

关键词：

Toxicity Characteristic Leaching Procedure; Sulfuric Acid Concentration; Iron Recovery; Calcium Arsenate; Ferric Arsenate;

D O I：

10.1007/s11837-999-0155-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Experimental testwork has shown that arsenic can be removed from arsenic-bearing solutions by hydrothermal precipitation at temperatures in th 170-200 degrees C range. The presence of Fe(III) is required for combination with As(V) to form the crystalline hydrated ferric arsenate known as scorodite (FeAsO4. 2H(2)O). The contained arsenic is effectively immobilized by incorporation into a crystalline, low-solubility compound. Process options are suggested for disposing of arsenic in copper electrorefinery bleed liquors.

引用

页码：30 / 33

页数：4

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