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镇沅金矿固硫焙烧焙砂多硫化物浸出工艺研究
引用本文:海光宝.镇沅金矿固硫焙烧焙砂多硫化物浸出工艺研究[J].云南冶金,2000,29(2):37-39.
作者姓名:海光宝
作者单位:云南省黄金工业公司!云南昆明650051
摘    要:研究了用多硫化物溶液直接浸出固硫焙烧焙砂中的金。考察了时间、温度、硫化钠浓度、S^0/Na2S分子比等因素对金浸出率的影响。在最佳浸出条件下,所得焙砂浸出结果,与焙砂预脱硫化钙后的氰化浸出效果相当。多硫化物浸出具有消除硫化钙影响、浸金速度快、试剂基本无毒等特点。

关 键 词:金矿  多硫化物  固硫焙烧焙砂  浸出工艺

Study on Polysulfide Leaching of Calcines Produced in Sulphur-fixed Roasting of Zhenyuan Gold Ore
HAI Guang-bao.Study on Polysulfide Leaching of Calcines Produced in Sulphur-fixed Roasting of Zhenyuan Gold Ore[J].Yunnan Metallurgy,2000,29(2):37-39.
Authors:HAI Guang-bao
Abstract:The study on direct leaching of gold from calcines generated in sulfur-fixed roasting with polysulfide solution has been carried out.Factors affecting gold recovery,such as time,temperature,sodium sulphate concentration and S 0/Na 2S,have also been investigated.Under the optimum conditions,the leaching results achieved match to those obtained in cyanide leaching after pre-eliminating of calcium sulfide.Polysulfide leaching can eliminate the effect of calcium sulphate,with rapid leaching of gold without using nontoxic reagents.
Keywords:gold ore  polysulfide  calcines generated in sulfur-fixed roasting  leaching  
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