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硫酸铵低温分解技术将有利于磷石膏处理
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硫酸铵低温分解技术将有利于磷石膏处理
2018年6月5日,南昌至新化工技术有限公司表示,公司已成功开发硫酸铵水溶液低温分解法,该方法最大的特点是对于石膏转化分离所得的硫酸铵水溶液,可以不经过浓缩、干燥,只用改性催化剂就可以直接分解硫酸铵水溶液,大大降低了成本。 据至新化工总工程师张智新介绍,该工艺技术对磷化工产生的磷石膏,用氨气、二氧化碳和水进行转化并分离,得到的碳酸钙(可用于水泥生产),而生成的另一产物硫酸铵,其水溶液经低温催化分解得到氨水和三氧化硫,其中氨水可返回系统用于转化反应,而三氧化硫可制成硫酸后用于湿法磷酸生产,可...
Phosphorus Industry China Monthly Report 201806(Chinese Version)
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