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Production process of cement retarder from phosphogypsum in Indonesia
Author(s): 
Pages: 82-84
Year: Issue:  5
Journal: Phosphate & Compound Fertilizer

Keyword:  Indonesiaphosphogypsumcement retarderprocess;
Abstract: 针对磷石膏排放量和累积存量巨大的现状,介绍印度尼西亚某厂利用磷石膏制水泥缓凝剂的方法.将磷石膏净化预处理,选用直管气流式干燥器和煅烧器,采用两段式干燥煅烧法工艺,得到脱水率达99%的半水石膏,再经造粒、陈化制得合格的水泥缓凝剂.产品应用于建筑行业,取得了良好的经济效益和环境效益.
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