在简要介绍我国金锑精矿鼓风炉挥发熔炼-贵锑电解工艺的基础上,重点阐述了锑锍处理、金银合金提纯、贵锑和贵铅富集金等工序改造的相关内容.将锑锍处理由原来的焙烧法改为选矿法,将金银合金处理工艺由电解改为溶解萃取,贵锑和贵铅富集金由电解改为控制电位选择性氯化浸出.这些工序的改进不仅保证了原有生产工艺的正常进行,提高了各种金属的直收率,而且缩短了工艺流程,减少了环境污染.
On the basis of the brief introduction of the gold-antimony concentrate smelting process in China,some corresponding process improvements such as the treatment of antimony matte,the refinement of gold-silver alloy,the concentration of gold from gold-antimony alloy were emphatically described in the paper. The roasting method that has been used to treat the antimony matte was substituted by the ore dressing method. The solvent extraction was used to refine the gold-silver alloy instead of the electrolytic method. The technology of selective chlorination leaching under controlling potential was applied to concentrate gold from gold-antimony alloy and gold-lead alloy instead of electrolysis method. After those improvements,the direct recovery rate of metals is greatly increased. Meanwhile,the procedures of treatment are shortened,and the environment pollution is decreased.
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