C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
202/85
C02F 1/10 (2006.01) C01C 1/10 (2006.01) C02F 1/58 (2006.01)
Patent
CA 1135653
ABSTRACT OF THE DISCLOSURE The present invention provides an apparatus for treatment of an ammoniacal waste liquid comprising a sequence, a first distillation column for steam-stripping of free ammonia from said liquid, a reaction tank for effecting decomposition reaction of residual fixed ammonia in said liquid by adding a calcium series alkali to yield a product containing free ammonia and a calcium salt, a solid-liquid separator for separation of the calcium salt from said liquid to yield a separated liquid, and a second distillation column for steam-stripping of the free ammonia from the separated liquid.
323969
Abe Hideshi
Fukuoka Satoru
Katoh Hajime
Konno Kanji
Ota Yutaka
Kawatetsu Kagaku Kabushiki Kaisha
Marks & Clerk
Mitsui Kensetsu Kabushiki Kaisha
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