C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/67
C01B 25/30 (2006.01)
Patent
CA 1306596
ABSTRACT OF THE DISCLOSURE Relatively pure monopotassium phosphate is produced from wet process phosphoric acid in a process wherein the phosphoric acid is mixed with potassium chloride and recycled components from downstream product and by-product recovery steps and heated to permit hydrogen and chloride to evolve from the melt as gases and wherein the melt is subsequently treated so as to remove impurities so that the monopotassium phosphate may be recovered as a relatively pure crystalline product with low chloride content.
609499
Erickson William R.
Stain Donald B.
Wilson James D.
Fetherstonhaugh & Co.
Phosphate Engineering And Constrution Company
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