Method for producing caro's acid

Details Method for producing caro's acid Method for producing caro's acid

1994-12-08

1995-11-28

Langel, Wayne

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

C01B 1798

Patent

active

054705649

ABSTRACT:
This invention relates to a process for producing Caro's acid by reaction of at least 85% by weight sulfuric acid and at least 50% by weight hydrogen peroxide wherein the sulfuric acid and hydrogen peroxide are fed through separate feed lines into a funneling zone open to the atmosphere, the feed lines having air gaps between their ends and the funneling zone; passing said hydrogen peroxide and sulfuric acid by gravity flow from said funneling zone into one end of a reaction zone whose size permits a pressure drop which is at least 8 times the theoretical pressure drop for such reaction zone and removing a mixture containing Caro's acid from the exit end of the reaction zone.

REFERENCES:
patent: 2926998 (1960-03-01), D'Addieco et al.
patent: 5141731 (1992-08-01), Meier et al.
WO 92/11200 published Jul. 9, 1992 (McDonough et al.).
WO 92/07791 published May 14, 1992 (Lane et al.).

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