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以某厂反射炉产出的黑冰铜为原料，碳粉为还原剂，二氧化硅为造渣剂，进行了黑冰铜深度还原熔炼研究。结果表明：黑冰铜中的锡以二氧化锡和锡酸钠的形式存在，在合适的熔炼温度条件下，添加适量的二氧化硅和碳粉可实现黑冰铜中锡的深度还原和高效回收，锡的回收率可以达到97.32%，还原渣含锡约为0.08%，铅锡合金中锡含量可达到18.9%。最佳试验条件为：还原熔炼温度1 200℃、熔炼时间60 min、碳粉添加量16%、二氧化硅添加量2%。
Abstract：The deep reduction and smelting of black copper matte was carried out by using the black copper matte produced by the reverberatory furnace of a factory as raw material, carbon powder as reducing agent, and silica as slag making agent. The results show that tin in black copper matte exists in the form of tin dioxide and sodium stannate. Under the suitable smelting temperature, adding appropriate amount of silicon dioxide and carbon powder can achieve deep reduction and efficient recovery of tin in black copper matte. The recovery rate of tin can reach 97. 32%, the tin content of reduced slag is about 0. 08%, and the tin content in lead-tin alloy can reach 18. 9%.The optimal experimental conditions are as follows: reduction melting temperature of 1 200 ℃, melting time of 60 minutes,carbon powder addition of 16%,and silicon dioxide addition of 2%.
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基本信息:
DOI：10.20237/j.issn.1007-7545.2025.05.002
中图分类号:TF814
引用信息:
[1]曲超,马保中,董准勤,等.从黑冰铜中回收有价元素锡的研究[J].有色金属(冶炼部分),2025(05):12-17.DOI:10.20237/j.issn.1007-7545.2025.05.002.
基金信息:
国家重点研发计划项目（2022YFC2904200）
2025-04-25
2025-04-25