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从铬盐生产过程中排出的废渣——铝泥中回收重铬酸钠技术,同时副产硫酸铝可作生产重铬酸钾的沉降剂。其经济效益显著。
Recycling sodium dichromate from waste sludge discharged from chrome salt production, while by-product aluminum sulphate is used as a precipitator for the production of potassium dichromate. Its economic benefits are obvious.