置换沉淀一直被化学工作者和冶金工作者用来作为提纯和回收稀溶液中有价金属的一种经济方法。本文首先从热力学方面论述了置换沉淀。其次,按照速率表示式,论述了工艺过程中各个变量,如温度、搅拌速度、铜离子的起始浓度、溶液的pH值、气氛以及沉淀金属的表面积等对反应过程动力学的影响。 Metabolite precipitation has been used by chemical workers and metallurgists as an economical method of purifying and recovering valuable metals in dilute solutions. This paper first discusses the thermodynamics of the displacement of precipitation. Secondly, according to the rate expression, the influence of various variables such as temperature, stirring speed, initial concentration of copper ion, pH value of the solution, atmosphere and the surface area of ​​the precipitated metal on the kinetics of the reaction process are discussed.