The problems existed in sintering desilication process added with milk of lime but without separating sodium-silica slag in pregnant liquor are pointed out.

• 指出了烧结法精液钠硅渣不分离加石灰乳脱硅工艺存在的问题,通过实验室研究,提出了加絮凝剂使硅渣浆液快速分离,加石灰乳深度脱硅的工艺流程。