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P-204从盐酸系统萃取铟比传统的中和沉淀流程优越,并获得较广泛的应用。但是,它仍有不足之处,主要是萃取要用碱调整原液酸度,酸不能返回电解系统;反萃要用双氧水(使铟锡分离)和6～8N 盐酸或草
P-204 extraction of indium from the hydrochloric acid system is superior to traditional neutralization and precipitation processes and has been widely used. However, there are still some shortcomings. The main problem is that the acidity of the original solution should be adjusted by alkali and the acid can not be returned to the electrolysis system. The reverse extraction uses hydrogen peroxide (indium tin separation) and 6 ~ 8N hydrochloric acid or grass