Process for the manufacture of persalt particles

Details Process for the manufacture of persalt particles Process for the manufacture of persalt particles

1997-05-15

1999-05-25

Straub, Gary P.

Chemistry: physical processes

Physical processes

Crystallization

23302, 422252, 4234152, C01D 130, C01B 3124

Patent

active

059066601

ABSTRACT:
Continuous process for the manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persalt formed in a crystallizer-classifier comprising a stirred formation and growth region for the persalt crystals, a nonstirred clarifying region for the solution and a classification region for the particles obtained by elutriation in a liquid stream withdrawn in the clarifying region.
Plant for manufacturing the said particles.

REFERENCES:
patent: 2986448 (1961-05-01), Gates et al.
patent: 3883311 (1975-05-01), Kanal et al.
patent: 4113552 (1978-09-01), Bella, Jr. et al.
patent: 4174382 (1979-11-01), Menche
patent: 4830836 (1989-05-01), Uchino et al.
R.H. Perry: "Perry's Chemical Engineer's Handbook". Sixth Edition, 1985, McGraw-Hill, New York, pp. 19-24 to 19-40.

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