Reclamation of materials from photoflash cartridges

Details Reclamation of materials from photoflash cartridges Reclamation of materials from photoflash cartridges

1981-04-30

1982-06-08

Gerris, Bradley

Chemistry: physical processes

Physical processes

Crystallization

2302R, 23304, 1491096, B01D 902, B01D 1102, B01F 100

Patent

active

043337376

ABSTRACT:
A process is provided for reclaiming materials from photoflash cartridges ich are comprised of aluminum, barium nitrate and potassium perchlorate. The photoflash composition is dumped into heated water to dissolve barium nitrate and potassium perchlorate and the solution is then filtered to remove aluminum. Then the solution is cooled to precipitate the barium nitrate and the potassium perchlorate and the precipitated salts are then removed by filtering.

REFERENCES:
patent: 1706938 (1929-03-01), Roberts
patent: 2489573 (1949-11-01), Hampel
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patent: 3930844 (1976-01-01), Parrish et al.
patent: 3982930 (1976-09-01), Doades et al.
patent: 4057442 (1977-11-01), Shaw et al.
patent: 4098627 (1978-07-01), Tompa et al.
patent: 4229182 (1980-10-01), Shaw
3,897,237 07001975 Musselman et al. 71 1

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