Vacuum stripping of ammonia

Details Vacuum stripping of ammonia Vacuum stripping of ammonia

1974-07-03

1976-10-12

Vertiz, Oscar R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

423396, C01C 300

Patent

active

039858596

ABSTRACT:
A method and apparatus for stripping ammonia from an alkaline regenerant solution used for the regeneration of a zeolite ion exchange bed. The regenerant passes through a stripping column. An acidic working solution is circulated from a holding tank through a vacuum creating means and then back into the holding tank. The ammonia is stripped from the regenerant under a vacuum created in the stripping column by the vacuum creating means so as to cause the stripped ammonia to chemically react with working solution to form an ammonium salt solution. Carbon dioxide free air is passed upward through the column countercurrent to the flow of regenerant.

REFERENCES:
patent: 2808125 (1957-10-01), Back et al.
patent: 3038285 (1962-07-01), Mavrovic
patent: 3428426 (1969-02-01), Carney et al.
patent: 3448042 (1969-06-01), Mattia et al.
patent: 3758277 (1973-09-01), Cook et al.
patent: 3775088 (1973-11-01), Higgins
patent: 3804757 (1974-04-01), Ruschenburg

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