Chemical Reduction Method Prepares Pure Silver from Silver Chloride with Complex Composition
The extraction of silver chloride with complex composition was studied by ammonia dissolution-tertiary reduction method.The process mainly consists of silver chloride washing,ammonia water dissolution,separation of solid insoluble matter,primary reduction separation of precious metals,secondary reduction to obtain pure silver,tertiary reduction to recover residual precious metals,silver washing,silver smelting,waste water and waste gas treatment.Practice has shown that this process can use silver chloride with a complex composition as raw material to produce pure silver with a purity of more than 99.99%.The process has the advantages of less infrastructure investment,simple process,convenient operation and wide scope of application,and is suitable for the recovery of silver chloride produced in the daily production process of most enterprises.
Ammonia dissolves silver chlorideSeparation of solid insoluble matterBy way of restorationGet sterling silver
国家科技期刊平台
NSTL
万方数据
