Study on Pretreatment Process of Low-sulfur Gold and Silver-associated Limonite AITranslate
Abstract AITranslate
Low-sulfur gold and silver-associated limonite was pretreated by calcination-sulfuric acid leaching to remove most of the impurities and improve silver leaching rate during subsequent cyanidation leaching.The optimal pretreatment conditions are 650 ℃ calcination temperature,2hcalcination time,1.5 mol/L sulfuric acid concentration,4∶1liquid-solid ratio,room temperature,300r/min stirring speed and 4h leaching time.The experimental results show that when the ore of particle size less than 0.074 mm is pretreated by calcination-sulfuric acid leaching,silver leaching rate is 27.89%,about 14% higher than pretreated by calcination-ammonia leaching and 20% higher than without pretreatment.When the ore has lower particle size of 0.025 mm,silver leaching rate increases to 42.61%.However,copper content is still 0.26%in the pretreated limonite by calcination-sulfuric acid leaching.Thus,further study is needed for impurity separation and silver extraction to realize high-efficiency utilization of resources.
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1赵继春.YW-200浸出铜矿中伴生银试验研究[J].云南冶金,2006,35(1):38-40. 被引量：2
2DESCHINES G, PRUDHOMME P J H. Cyanidation of a copper-gold ore[J]. International Journal of Mineral Processing, 1997,50(3) : 127-141.
3李德良,黄念东,夏畅斌,宋和付,王淀佐.含铜复杂金矿的无害化综合回收工艺研究[J].湘潭矿业学院学报,1999,14(2):50-54. 被引量：1
4汤雁冰.氧化铜铁矿石中伴生金银的回收[J].有色矿山,2000,29(3):28-31. 被引量：2
1祁磊,高文元,殷燕林,杨啸清,庄世明,和少龙,崔毅琦.云南大理某含金多金属氧化矿石工艺矿物学及分选试验研究[J].黄金,2022,43(11):67-72.
1周一康.我国伴生金银提取冶金技术进展[J].稀有金属,1996,20(3):217-221. 被引量：3
2吴夫彬.从多金属矿中回收伴生金银的工艺[J].湖南有色金属,1994,10(5):282-286.
3冯雅丽,吴梦妮,李浩然.含砷金矿与软锰矿酸浸预处理脱砷浸金[J].有色金属：冶炼部分,2015(12):45-47. 被引量：2
4朱观嶽.伴生金银选冶技术新进展[J].北京矿冶研究总院学报,1992,1(1):79-83. 被引量：2
5聂正才.铅锌硫矿石中伴生金银的回收[J].湖南有色金属,1992(6):334-337.
6关通.从石菉铜阳极泥中提取金银的研究[J].广东有色金属学报,2002,12(1):9-12.
7夏光祥,涂桃枝.催化氧化酸浸预处理黄铁矿型金精矿的研究[J].化工冶金,1989,10(3):23-30. 被引量：2
8李小英,彭建蓉,白淑坤,崔涛,包崇军.高砷多金属矿中金和银的浸出实验研究[J].贵金属,2014,35(A01):37-41. 被引量：2
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Chinese Library Classification Number:TF832[冶金工程—有色金属冶金]
Citation Information:
Low-sulfur gold and silver-associated limonite was pretreated by calcination-sulfuric acid leaching to remove most of the impurities and improve silver leaching rate during subsequent cyanidation leaching.The optimal pretreatment conditions are 650 ℃ calcination temperature,2hcalcination time,1.5 mol/L sulfuric acid concentration,4∶1liquid-solid ratio,room temperature,300r/min stirring speed and 4h leaching time.The experimental results show that when the ore of particle size less than 0.074 mm is pretreated by calcination-sulfuric acid leaching,silver leaching rate is 27.89%,about 14% higher than pretreated by calcination-ammonia leaching and 20% higher than without pretreatment.When the ore has lower particle size of 0.025 mm,silver leaching rate increases to 42.61%.However,copper content is still 0.26%in the pretreated limonite by calcination-sulfuric acid leaching.Thus,further study is needed for impurity separation and silver extraction to realize high-efficiency utilization of resources.
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| GB/T 7714-2015 | [1] ZHU Wei, GUO Qiu-song, LIU Zhi-qiang, et al. Study on Pretreatment Process of Low-sulfur Gold and Silver-associated Limonite[J]. Rare Metals and Cemented Carbides, 2016(3): 25-28. |
| MLA | [1] ZHU Wei, et al., "Study on Pretreatment Process of Low-sulfur Gold and Silver-associated Limonite." Rare Metals and Cemented Carbides, no. 3, 2016, pp. 25-28. |
| APA | [1] ZHU Wei, GUO Qiu-song, LIU Zhi-qiang, & CHEN Huai-jie. (2016). Study on Pretreatment Process of Low-sulfur Gold and Silver-associated Limonite. Rare Metals and Cemented Carbides(3), 25-28. |
| IEEE | [1] ZHU Wei, GUO Qiu-song, LIU Zhi-qiang, and CHEN Huai-jie, "Study on Pretreatment Process of Low-sulfur Gold and Silver-associated Limonite," Rare Metals and Cemented Carbides, no. 3, pp. 25-28, 2016. keywords: {low-sulfur gold and silver-associated limonite;pretreatment;calcination;sulfuric acid leaching;cyanidation leaching;silver;leaching rate} |