C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
23/95
C01C 1/24 (2006.01)
Patent
CA 1112843
Abstract A process for producing ammonium sulfate from ammonium sulfite by oxidation of an ammonium sulfite solution having a pH of between about 6 and about 7.5, at a temperature between about 190°F, and below about 300°F. and a pressure between about 200 psig and about 300 psig, with oxygen or oxygen containing gas.
250806
Davis Phillip K.
Ealey Dennis T.
Geist Donald
Engelhard Minerals & Chemicals Corporation
Macrae & Co.
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