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原磷酸二铵(DAP)生产装置不作任何改动,用磷石膏替代硫酸调控DAP产品养分。讨论磷石膏加入点及添加方式,添加磷石膏每吨DAP生产成本降低25元,节省硫酸用量,开发了磷石膏新用途。
Raw DAP (DAP) production plant without any changes, with phosphoric gypsum instead of sulfuric acid to regulate DAP product nutrients. Discuss the point of adding phosphogypsum and add the way, add phosphogypsum DAP per ton of DAP lower production costs by 25 yuan, saving the amount of sulfuric acid used to develop a new use of phosphogypsum.