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有色金属(冶炼部分):2014,(3):25-28
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沸腾焙烧烟灰浸出金、银、铜的试验研究
曾斌,赖子球,王瑞祥,余攀
(江西理工大学冶金与化学工程学院,紫金矿业集团股份有限公司,江西理工大学冶金与化学工程学院,江西理工大学冶金与化学工程学院)
Study on Leaching of Gold-Silver-Copper from Fluidized-bed Roasting Ash
ZENG Bin,LAI Zi-qiu,WANG Rui-xiang and YU Pan
(School of Metallurgical and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou,,,)
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本文已被:浏览 2631次   下载 2574次
投稿时间:2013-09-03     修订日期:2013-09-04     录用日期:2013-09-05     网络发布日期:2014-02-25
中文摘要: 采用酸浸—氰化工艺从某沸腾焙烧烟灰中浸出金、银、铜。结果表明,较优工艺为:酸浸硫酸浓度1.0 mol/L,液固比4∶1,反应温度90 ℃,反应时间4 h,搅拌速度300 r/min;氰化浸出反应液固比3∶1,氰化钠浓度0.2 %,pH 10~11,反应时间48 h,搅拌速度300 r/min。此条件下,金、银、铜的浸出率分别为97.16%、79.98%、96.04%。
中文关键词: 酸浸  氰化浸出  沸腾焙烧烟灰  金  银  铜
Abstract:Gold, silver and copper were leached from fluidized-bed roasting ash by sulfuric acid leaching-cyaniding leaching process. The results show that the leaching rate of gold, silver and copper is 97.16%, 79.98% and 96.04% respectively under the following optimal conditions including sulfuric acid concentration of 1.0 mol/L, ratio of liquid to solid of 4∶1, temperature of 90 ℃, reaction time of 4 h and stirring speed of 300 r/min as well as ratio of liquid to solid of 3∶1, sodium cyanide concentration of 0.2%, pH value of 10~11, reaction time of 48 h and stirring speed of 300 r/min in cyaniding leaching.
文章编号:     中图分类号:TF815    文献标志码:
基金项目:国家自然科学基金资助项目(51164011);福建省区域科技重大合作项目(2011H4025)
引用文本:
曾斌,赖子球,王瑞祥,余攀.沸腾焙烧烟灰浸出金、银、铜的试验研究[J].有色金属(冶炼部分),2014(3):25-28.
ZENG Bin,LAI Zi-qiu,WANG Rui-xiang,YU Pan.Study on Leaching of Gold-Silver-Copper from Fluidized-bed Roasting Ash[J].Nonferrous Metals (Extractive Metallurgy),2014(3):25-28.

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