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Current status and prospect of industrial phosphoric acid production
Author(s): 
Pages: 74-78
Year: Issue:  6
Journal: Chemical Engineering

Keyword:  phosphoric acidindustrial production processthermal phosphoric acidkiln-method phosphoric acid;
Abstract: 在我国以中、低品位磷矿居多,为了满足可持续发展的要求,需要加强利用中、低品位磷矿生产磷酸,同时能够有好的经济效益.分别阐述了湿法磷酸、热法磷酸、窑法磷酸等生产方法,概述了各个生产工艺的基本原理、主要设备及工艺流程等.着重对工艺要求较高的热法磷酸和窑法磷酸进行说明,包括热法磷酸的燃烧水合一步法和燃烧水合二步法、窑法磷酸的KPA工艺和CDK工艺,并且阐述了在窑法磷酸工艺方面一些较新的进展.通过对于几种工艺的集中说明,便于对以上几种工业磷酸生产方法进行比较分析,根据实际情况进行取舍,选取最佳的生产方案.
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