针对硫酸法钛白粉生产中废酸排放量大的问题 ,试验研究对废酸中的铁和钛进行回收并用废硫酸生产过磷酸钙的可能性。在过磷酸钙生产中添加活化疏松剂 ,可以使过磷酸钙产品疏松、不结块 ,物性良好 ,而且减轻了钛白粉厂的环境污染问题。 Aiming at the problem of large amount of waste acid in the production of titanium dioxide by sulfuric acid method, the possibility of recovering iron and titanium in the waste acid and using the waste sulfuric acid to produce the superphosphate was experimentally studied. The addition of activated osteoporosis agent in the production of superphosphate can make the superphosphate product loose, non-agglomerated, good in physical properties and reduce the environmental pollution of the titanium dioxide plant.