Process for the regeneration of sulfuric acid

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

1974-06-12

1977-03-01

Vertiz, Oscar R.

Chemistry of inorganic compounds

With additive

Including corrosion inhibitor

134 12, 203 7, 203 28, 252387, 423523, 423525, 423531, C01B 1790, C23F 1104

Patent

active

040102408

ABSTRACT:
Contaminated sulfuric acid which may contain water, organic compounds and inorganic salts is converted to almost pure concentrated sulfuric acid by passing the acid through a Pauling plant and distilling the concentrated contaminated acid.
Addition of nitric acid improves the decomposition of organic compounds and ammonium salts of the contaminated acid.

REFERENCES:
patent: 1545498 (1925-07-01), Klinger et al.
patent: 1795995 (1931-03-01), Busching
patent: 2049517 (1936-08-01), Saukaitis
patent: 2134909 (1938-11-01), DE Nooji et al.
patent: 2313910 (1943-03-01), Archibald
patent: 2513131 (1950-06-01), Baer
patent: 2837474 (1958-06-01), Cartledge
patent: 2863780 (1958-12-01), Ball, Jr.
patent: 2981643 (1961-04-01), Baybarz
patent: 3294650 (1966-12-01), Manteufel
patent: 3415754 (1968-12-01), Freuel
patent: 3713786 (1973-01-01), Umstead

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