郝冬冬,蒋开喜,王玉芳,王海北.白烟灰浸出液中铜的综合回收[J].矿冶,2019,28(4):.
白烟灰浸出液中铜的综合回收
Comprehensive recovery of copper from leaching solution of copper flue dust
投稿时间:2018-12-18  修订日期:2019-01-03
DOI:
中文关键词:  白烟灰  硫化沉淀      
英文关键词:copper flue dust  sulfide precipitation  copper  arsenic  zinc
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目),国家重点基础研究发展计划(973计划)
           
作者单位
郝冬冬 北京矿冶研究总院
蒋开喜 北京矿冶研究总院
王玉芳 北京矿冶研究总院
王海北 北京矿冶研究总院
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中文摘要:
      本文以国内某铜冶炼厂所产白烟灰的浸出液为研究对象,通过硫化沉淀的方法对有价金属铜进行了回收试验。在分析了该白烟灰浸出液主要成分的基础上,重点考察了硫化物加入量、反应时间以及反应温度对金属铜沉淀率的影响,并确定了最佳工艺条件。试验结果表明:当硫铜比为1.2,反应温度为80℃,反应时间为1h时,铜沉淀率可达到98.82%,而砷和锌沉淀率仅为0.08%和0.41%,且沉淀渣中铜的含量高达60.4%。
英文摘要:
      In this paper, the leaching solution of certain copper smelter flue dust was taken as the raw material, and the tests on recovery of copper were carried out by sulfide precipitation method. Based on the analysis of the main composition of the flue dust leaching solution, the effects of sodium sulfide dosage, reaction time and temperature on the copper precipitation rate were investigated, and the optimum technological conditions were obtained. The optimum condition is: the ratio of sulphur to copper 1.2, reaction temperature 80℃ and reaction time 1h. Under this condition, the precipitation rate of copper can reach 98.82%, while that of arsenic and zinc is only 0.08% and 0.41%. The copper content in the precipitated residue is as high as 60.4%.
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