Process for regenerating brines containing sodium sulfites and s

Details Process for regenerating brines containing sodium sulfites and s Process for regenerating brines containing sodium sulfites and s

1977-12-28

1979-08-14

Vertiz, O. R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkali metal

423242, 423541A, C01D 700

Patent

active

041645430

ABSTRACT:
Process for regenerating brines containing simultaneously sodium sulfites and sulfates so as to produce sulfur dioxide and an alkaline solution usable for absorbing sulfur dioxide, comprising contacting the brine with ammonium bisulfate, sodium bisulfate and ammonium sulfite to produce sulfur dioxide and an enriched solution of sodium sulfate and ammonium sulfate, which is reacted with CO.sub.2 and ammonia to obtain solid sodium bicarbonate which is decomposed to form CO.sub.2 and an enriched solution of ammonium sulfate, containing dissolved ammonium bicarbonate, which is heated with a reducing agent so as to decompose the ammonium sulfate to ammonia and ammonium bisulfate which is partly reduced to gaseous ammonia and sulfur dioxide, said process including several recycling steps.

REFERENCES:
patent: 3676059 (1972-07-01), Welty, Jr.
patent: 3761575 (1973-09-01), Furkert
patent: 3846535 (1974-11-01), Fonseca
patent: 3966891 (1976-06-01), Renault et al.

Affiliated with

Also associated with

Rating

Process for regenerating brines containing sodium sulfites and s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for regenerating brines containing sodium sulfites and s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for regenerating brines containing sodium sulfites and s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1376457