Process for the regeneration of sulfuric acid

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

2006-10-06

2010-11-30

Parsa, Jafar (Department: 1621)

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

C423S525000, C423S531000

Reexamination Certificate

active

07842272

ABSTRACT:
Sulfuric acid contaminated with byproducts of chloromethane scrubbing is regenerated for reuse in the scrubbing process by diluting with water to not lower than about a 55 weight percent concentration, heating the diluted acid to boiling at not more than about 135° C., concentrating the acid to a concentration of minimally 80 weight percent at a temperature of at least 170° C., and reacting the concentrated acid with an oxidizing agent.

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“Schott Engineering, 1987” from Schott Engineering GMBH: Mainz; pp. 12-17.
English Abstract for “Schott Engineering, 1987” from Schott Engineering GMBH, Mainz, pp. 12-17.
Ullmanns Enzyklopadie der technischen Chemie (Ullmann's Enzyclopedia of Industrial Chemistry), 4th edition, vol. 21, pp. 117 ff., Verlag Chemie, Weinheim (1982).
English Abstract for Ullmanns Enzyklopadie der technischen Chemie (Ullmann's Enzyclopedia of Industrial Chemistry), 4th edition, vol. 21, pp. 117 ff., Verlag Chemie, Weinheim (1982).

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