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Issue:
Production process of cement retarder from phosphogypsum in Indonesia
Author(s):
SHEN Xing-hai
,
HAO Yi-xiao
,
ZHAO Jun
,
LI Zhi-gang
Pages:
82
-
84
Year:
2014
Issue:
5
Journal:
Phosphate & Compound Fertilizer
Keyword:
Indonesia
;
phosphogypsum
;
cement retarder
;
process
;
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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