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| 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 |
| 投稿时间：2018-04-17 |
| 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)。 |
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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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