Abstract
含锑金精矿碱性硫化钠浸出锑研究与工业实践
Research and Industrial Practice of Leaching Antimony by Alkali Sodium Sulfide from Antimony Gold Concentrate
Received:April 17, 2018  
DOI:
中文关键词: 有色金属冶金  含锑金精矿  硫化钠碱浸  锑浸出率  工艺改造
英文关键词: nonferrous metallurgy  antimony gold concentrate  alkali sodium sulfide leaching  antimony leaching rate  process transformation
基金项目:陕西省渭南市科技计划项目(2015TCZX-22)。
Author NameAffiliationE-mail
WANG Xianzhong Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China 835692250@qq.com 
ZHANG Shaohui Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China  
LI Mingliang Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China  
ZHAO Yafeng China National Gold Group Co.Ltd., Beijing 100011, China  
QIAO Guangjun Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China  
LÜ Chaofei Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China lvchaofei6294359@126.com 
ZHANG Xingang Tongguan Zhongjin Smelting Co.Ltd., Tongguan 714399, Shaanxi, China  
DANG Xiao'e Key Laboratory for Gold and Resources of Shaanxi, Xi’an University of Architecture and Technology, Xi’an 710055, China  
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中文摘要:
      为了回收含锑金精矿中的锑,减少锑对两段焙烧过程的影响,对浮选富集得到的含锑金精矿进行硫化钠碱性浸出锑研究。优化实验表明,在液固比1.5:1 (mL/g),氢氧化钠用量20 g/L,硫化钠用量40 g/L,反应温度80℃,浸出30 min,锑浸出率可达98%以上。在此基础上,采用焙烧炉余热将电解贫液加温至80℃,对液固分离方式、锑电积阴阳极板和冷冻结晶装置进行工艺改造,使锑的浸出率>98%、阴极锑纯度>95%,日产锑量增加17.35%。
英文摘要:
      In order to recover antimony from antimony concentrate bearing gold and reduce the influence of antimony on the two-stage roasting, the antimony gold concentrate after flotation enrichment has been studied by alkali sodium sulfide leaching. The results showed that the leaching rate of antimony is more than 98% by applying a liquid solid ratio of 1.5:1, 20 g/L of sodium hydroxide, 40 g/L of sodium sulfide, leaching 30 min at 80℃. For the lean electrolytic liquid, the leaching rate of antimony was more than 98% after it was heated to 80℃ by using roaster waste heat and treated by a modified separating method of liquid and solid, reforming anode and cathode plates of antimony and adding a freezing crystallization device. The purity of the resulted cathode antimony was more than 95%, and the daily production yield increased by 17.35%.
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