Method of making finely particulate ammonium perchlorate

Details Method of making finely particulate ammonium perchlorate Method of making finely particulate ammonium perchlorate

1971-09-15

1977-05-17

Padgett, Benjamin R.

Chemistry: physical processes

Physical processes

Crystallization

423476, 149 76, 62538, C01c 100

Patent

active

040239357

ABSTRACT:
A method of making finely particulate ammonium perchlorate which comprises establishing a two-phase liquid system in which the upper phase is a concentrated solution of ammonium perchlorate and the lower phase is a liquid which is immiscible with the upper phase solvent and a non-solvent for ammonium perchlorate. Precipitation of ammonium perchlorate from the solution into the non-solvent is effected by either cooling the solution or evaporating the solvent thereof while subjecting the system to ultra-sonic vibrations. Fine ammonium perchlorate particles collect in the non-solvent phase and are recovered therefrom.

REFERENCES:
patent: 2739873 (1956-03-01), Schumacher
patent: 3222231 (1965-12-01), Markels et al.
Perry, Chemical Engineer's Handbook, 4th Edition, 1963, pp. 17-15.

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