磷石膏生产建筑石膏的工艺探讨

Probe on Process of Architectural Gypsum Production from Phosphogypsum

介绍磷石膏综合利用的主要技术和方法:磷石膏洗涤净化预处理,洗涤水循环利用回收大部分的可溶性磷;采用两段沸腾煅烧工艺先预烘干脱除游离水,后脱除结晶水生产建筑石膏。

Introduce the main techniques and methods: scrubbing purification,recovery and reuse most of the soluble phosphorus by washing water circulation,pre-dry the free-water by two-stage ebullience calcining process,and then removing the crystal water to produce architectural gypsum.