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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (5): 122-126.doi: 10.11872/j.issn.1005-2518.2017.05.122

• 冶炼技术与装备研发 • 上一篇    下一篇

含铜金精矿焙烧—酸浸对金、银浸出率的影响

杨玮,王刚,曹欢,张凯   

  1. 西安建筑科技大学材料与矿资学院,陕西省黄金与资源重点实验室,陕西  西安   710055
  • 收稿日期:2017-07-11 修回日期:2017-08-29 出版日期:2017-10-30 发布日期:2018-02-12
  • 通讯作者: 王刚(1994-),男,陕西商洛人,硕士研究生,从事湿法冶金及稀贵金属提取分离研究工作。877412101@qq.com
  • 作者简介:杨玮(1971-),男,河南灵宝人,教授,从事选矿、湿法冶金及资源综合回收技术研究工作。ywmsco@126.com
  • 基金资助:

    国家自然科学基金项目“氧化铅(PbO)强化难处理高铜金精矿氰化浸出过程的基础”(编号:51474169)和陕西省工业科技攻关项目“碲化物型难处理金矿金银碲综合回收技术研究”(编号:2016GY-154)联合资助

Effect of Roasting-Acid Leaching on Gold and Silver Leaching Rate of Gold Concentrate Containing Copper

YANG Wei,WANG Gang,CAO Huan,ZHANG Kai   

  1. Key Laboratory of Gold and Resource of Shaanxi Province,College of Materials and Mineral Resources,Xi’an University of Architecture and Technology,Xi’an   710055,Shaanxi,China
  • Received:2017-07-11 Revised:2017-08-29 Online:2017-10-30 Published:2018-02-12

摘要:

摘  要:某黄金冶炼厂采用焙烧—酸浸—氰化浸出工艺处理含铜金精矿。针对金、银浸出率偏低的情况,进行了工艺条件优化。通过单因素对比试验,考察焙烧温度、焙烧时间、酸浸酸度、酸浸时间和矿物粒度对金、银浸出率的影响。结果表明:在焙烧温度为650 ℃,焙烧时间为1 h,酸浸酸度为25 g/L,酸浸时间为1 h,-0.074 mm含量占90%的条件下,进行氰化浸出,金、银浸出率分别达到97.13%和67.56%,分别提高了6.87%和14.80%,取得了良好的工艺指标。

关键词: 含铜金精矿, 浸出率, 工艺优化, 焙烧&mdash, 酸浸, 金,

Abstract:

Roasting-acid leaching-cyanide leaching process was used to treat a gold concentrate containing copper.According to the low leaching rate of gold and silver,the technological conditions were optimized.The effects of roasting temperature,roasting time,acid leaching acidity,acid leaching time and mineral particle size on leaching rate of gold and silver were investigated by single factor comparative test.The results showed that under the conditions of roasting temperature of 650 ℃,roasting time was 1 h,acid dipping acidity was 25 g/L,acid leaching time was 1 h and -0.074 mm content was 90%,the leaching rate of gold and silver reached 97.13% and 67.56% respectively,the leaching rate of gold and silver increased by 6.87% and 14.80% respectively,better technological indexes had been obtained.

Key words:  gold concentrate containing copper, leaching rate, technological optimization, roasting-acid leaching, gold, silver

中图分类号: 

  • TF831

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