关键词: 磷石膏;碳酸钙;轻质;副产;晶须

Abstract: Calcium carbonate, which could be prepared by using phosphogypsum in order to improve the additional value of phosphogypsum utilization , is a inorganic material. Calcium carbonate from phosphogypsum preparation of has also been widely applied in the fields of packing , coating and polymer modification, and so on.In the paper, based on comprehensive utilization of phosphogypsum , the research state of preparation for by-product calcium carbonate ( light or other type ) with ammonium sulfate, calcium carbonate with sodium sulfate or sulfuric acid , calcium carbonate whisker, etc.is introduced.And then, Some factors, which has influence on the structure and morphology of products , such as the impurity of raw materials, impurity pretreatment, additives, other process parameters, are focused on. In future research, that ammonium sulfate and by-product calcium carbonate from phosphogypsum is still the major research direction is further indicated .

Key words: phosphogypsum;calcium carbonate;light;byproduct;whisker