Process for purification and concentration of sulfuric acid

Details Process for purification and concentration of sulfuric acid Process for purification and concentration of sulfuric acid

1993-03-15

1994-01-04

Manoharan, Virginia

Distillation: processes, separatory

Distilling to separate or remove only water

159 171, 159 471, 159DIG8, 159DIG42, 202174, 202176, 203 22, 203 49, 203 73, 203 95, 203DIG8, 423522, 423526, 423531, B01D 126, C01B 1790

Patent

active

052757013

ABSTRACT:
A process for the purification and concentration of sulfuric acid contained with nitric acid by-products and organic components pursuant to the mixed acid nitration of aromatics. The process resides in the integration of a purification system with a concentration system which includes:

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patent: 4276116 (1981-06-01), Blumrich et al.
patent: 4409064 (1983-10-01), Vora et al.
patent: 5061472 (1991-10-01), Lailach et al.

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