New Technology for High Efficient Recovery of Precious Metals Six-component Alloy Wastes

摘要：

Aimed at high content of valuable metals, complicated composition, difficult to separation of precious metals six-component alloy wastes, the present paper proposed a new technology of high efficient separation and purification. Using fragmentation technology realizes fast dissolution of palladium, silver, copper and zinc in the wastes, and high efficient and complete separation of them from gold and platinum; using evaporation thermal-decomposition technology of mixed solution produced by nitric acid dissolving palladium, silver, copper and zinc, complete and high efficient separation of silver from palladium was realized; by control of solution acidity, using hydrazine reduction method, high efficient and complete separation of gold from platinum was realized. Using this new technology, the recovery rates of palladium and silver are above 99％, and gold and platinum above 98％, the grade of pure metals are above 99.95％.

关键词： precious metals six-component alloy wastes recovery

作者: DONG Wei WU Xian ZHANG Ji CAI Xingshun

作者单位: WestreRn Materails Co., Ltd. Northwest Institute for Non-ferrous Metal Research, Xian 710016, China WestreRn Materails Co., Ltd

会议类型: 国际会议

会议名称: 5th International Conference Platinium Metals(第五届国际贵金属会议)

会议地点: 昆明

会议语种:英文

页码: 1-4

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）