郭瑞,许万祥,王靖坤,周严,李进.含钌含铼阳极泥处理工艺研究[J].有色金属(冶炼部分),2019(10):55-57.
含钌含铼阳极泥处理工艺研究
Study on Treatment of Anode Mud Containing Rhenium and Ruthenium
投稿时间:2019-03-21  修订日期:2019-03-25
DOI:doi:10.3969/j.issn.1007-7545.2019.10.012
中文关键词:      阳极泥  氧化浸出
英文关键词:ruthenium  rhenium  anode mud  oxidative leaching
基金项目:国家重点研发计划(2018YFC1901704)
              
作者单位
郭瑞 西安瑞鑫科金属材料有限责任公司
许万祥 西安瑞鑫科金属材料有限责任公司
王靖坤 西安瑞鑫科金属材料有限责任公司
周严 西安瑞鑫科金属材料有限责任公司
李进 西安瑞鑫科金属材料有限责任公司
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中文摘要:
      针对某含钌含铼电解阳极泥,采用“酸性氧化浸出—碱焙烧—水浸”法处理。考察了氧化浸出酸度、温度、液固比、氧化剂用量、搅拌速率、浸出时间对铼浸出率的影响。结果表明,在盐酸浓度2 mol/L、85 ℃、液固比L/S=4、氧化剂用量为理论量的1.4倍、搅拌速率200 r/min、浸出时间2.5 h的条件下,铼的浸出率可达99%以上,而钨、钽、钌接近100%留于浸出渣中,实现铼与钨、钽、钌的分离。氧化浸出渣采用传统“碱氧化焙烧—水浸—蒸馏”法处理,实现钌与钨、钽的分离,蒸馏后液及水浸渣可分别回收钨、钽。
英文摘要:
      Anode mud containing ruthenium and rhenium was treated by acid oxidative leaching, alkali roasting, and water leaching. Effects of oxidation leaching acidity, temperature, mass ratio of liquid to solid (L/S), oxidant dosage, stirring rate, and leaching time on rhenium leaching rate were investigated. The results show that rhenium leaching rate is 99% above, and nearly 100% of W, Ta and Ru remains in leaching slag under the conditions including concentration of hydrochloric acid of 2 mol/L, temperature of 85 ℃, L/S=4, oxidant dosage of 1.4 times of theoretical consumption, stirring rate of 200 r/min, and leaching time of 2.5 h. Separation of rhenium and other rare metals is realized. The oxidized leaching slag is treated by conventional alkaline oxidizing roasting, water leaching, and distillation to realize separation of Ru and W and Ta. W and Ta can be recovered from distillation solution and water leaching residue, respectively.
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