Process for regeneration of sulfuric acid

Details Process for regeneration of sulfuric acid Process for regeneration of sulfuric acid

1978-09-14

1979-06-05

Vertiz, O. R.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

423529, 423531, C01B 1790, C01B 1772

Patent

active

041573811

ABSTRACT:
The invention provides a process for the regeneration of dilute sulfuric acid containing organic impurities and possibly also inorganic salt in several steps. In the first step, the dilute acid is concentrated by indirect heat exchange with the vapors of the second step, and in the second step it is concentrated by direct heat exchange with a countercurrent mixture of steam and acid vapors coming from a third step. In this third step, the acid discharged from the second step is mixed in direct heat exchange with superheated steam. The regenerated sulfuric acid is separated from this mixture and the remaining steam/vapor mixture is forwarded to the second step. In the case where the dilute acid contains organic substances, an oxidant is added in at least one of these process steps.

REFERENCES:
patent: 3294650 (1966-12-01), Manteufel
patent: 3992247 (1976-11-01), Bodenbenner et al.
patent: 4010240 (1977-03-01), Von Plessen et al.

Affiliated with

Also associated with

Rating

Process for regeneration of sulfuric acid 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 regeneration of sulfuric acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for regeneration of sulfuric acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1708298