System and methods for removing impurities from phosphogypsum and manufacturing gypsum binders and products

Disclosed herein are methods and systems that remove impurities from phosphogypsum (PG), including from radium and heavy metal salts, and produce gypsum binders and products. In one embodiment, PG is reacted with a chloride solution in an acidic environment under mechanical manipulation and/or heat followed by galvanic and/or zeolite absorption removal of impurities. 本文中公开的是从磷石膏(PG)移除杂质，包括镭和重金属盐，并生产石膏粘合剂和产品的方法和系统。在个实施方式中，在酸性环境下，在机械操纵和/或热下使PG与氯化物溶液反应，随后通电和/或沸石吸附移除杂质。