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公开(公告)号：US20210179429A1
公开(公告)日：2021-06-17
申请号：US16934056
申请日：2020-07-21
发明人： Jia SHI , Yong FU , Jun ZHANG , Hui LIU , Qiang ZHAO , Yiliang MO
摘要： The present invention discloses a preparation process of food-grade potassium dihydrogen phosphate, wherein phosphoric acid prepared from wet-process phosphoric acid is used for the preparation of high-purity potassium dihydrogen phosphate. The preparation process of food-grade potassium dihydrogen phosphate provided in the present invention effectively reduces the preparation cost of the high-purity potassium dihydrogen phosphate and has the advantage of high process controllability, and by such a process, high-purity potassium dihydrogen phosphate crystals that meet the food-grade requirements can be produced, which crystals have uniform particle size distribution and comprises few fine powder, having a very high market value.
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公开(公告)号：US11584647B2
公开(公告)日：2023-02-21
申请号：US16934056
申请日：2020-07-21
发明人： Jia Shi , Yong Fu , Jun Zhang , Hui Liu , Qiang Zhao , Yiliang Mo
IPC分类号： C01B25/30 , A23L33/16 , B01D1/00 , B01D21/26 , B01F27/191 , B01F27/1125 , B01F35/32 , B01F35/21 , B01F35/221 , B01F35/33
摘要： The present invention discloses a preparation process of food-grade potassium dihydrogen phosphate, wherein phosphoric acid prepared from wet-process phosphoric acid is used for the preparation of high-purity potassium dihydrogen phosphate. The preparation process of food-grade potassium dihydrogen phosphate provided in the present invention effectively reduces the preparation cost of the high-purity potassium dihydrogen phosphate and has the advantage of high process controllability, and by such a process, high-purity potassium dihydrogen phosphate crystals that meet the food-grade requirements can be produced, which crystals have uniform particle size distribution and comprises few fine powder, having a very high market value.
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