C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/72
C01B 25/18 (2006.01)
Patent
CA 1066020
ABSTRACT A process for obtaining pure orthophosphoric acid from superphosphoric acid is provided comprising crystallizing pure orthophosphoric acid from superphosphoric acid which has been hydrolized to a mixture of orthophosphoric acid having a P2O5 content of from about 65% to 70% and a polyphosphoric acid having a poly P2O5 content in the approximate range of 1% to 15%.
252089
Jernigan John D.
Whitehurst Brooks M.
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