Some problems have been solved after converting low concentration acid leaching into pre neutralization,such as forming silica gel,difficult solid/liquid separation and high content zinc in jarosite.

• 将低酸浸出改为预中和后,较好地解决了原流程中有大量硅胶产出、液固分离困难、黄钾铁矾渣中锌质量分数较高的难题。