C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
C01C 1/12 (2006.01) B01D 53/58 (2006.01)
Patent
CA 2046842
HOE 90/H 020 Process for the removal of ammonia from gases Abstract of the disclosure: In order to remove ammonia from water vapor-containing gases, in particular offgases, the gases are brought into intimate contact with warmed polyphosphoric acid, the polyphosphoric acid advantageously having a P2O5 content of from 70 to 84 % by weight and a temperature of from 120 to 170°C.
Adrian Renate
Staffel Thomas
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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