Peroxoacid manufacture

Details Peroxoacid manufacture Peroxoacid manufacture

1991-10-02

1994-04-19

Langel, Wayne

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

422161, 422224, 422256, C01B 1798, C01B 1748

Patent

active

053043600

ABSTRACT:
Conventional plant to produce peroxomonosulphuric acid (Caro's acid) is large and emphasises extensive cooling, so that it is awkward to transport, can be cumbersome to install beside existing plant and can suffer from relatively expensive capital and/or running costs.
In the present invention, Caro's acid is generated continuously in relatively small plant adiabatically, by introducing concentrated hydrogen peroxide into a stream of concentrated sulphuric acid in a reaction chamber dimensioned so that the throughput is very fast. In particularly suitable embodiments, the reaction chamber is annular at the points of introduction of the reagents, its width being greater in the vicinity of the hydrogen peroxide inlet than in the vicinity of the sulphuric acid inlet. The hydrogen peroxide inlet is preferably angled backwardly so that its encounter angle with the sulphuric acid stream is over 90.degree. to about 165.degree..

REFERENCES:
patent: 2789954 (1957-04-01), Fell
patent: 3272597 (1966-09-01), Beltz et al.
patent: 3743598 (1973-07-01), Field
patent: 3900555 (1975-08-01), Jourdan-Laforte
patent: 3939072 (1976-02-01), Laforte
patent: 3998597 (1976-12-01), Forrest
patent: 5028401 (1991-07-01), Escolar et al.

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