Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1997-04-11
1998-12-08
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
423194, 423184, 423202, 23299, 23302R, 23303, C22B 2620, C22B 2610
Patent
active
058465014
ABSTRACT:
In order to recover in an environmentally sound and economic manner used hardening shop salts which contain nitrate-nitrite, the salts, comminuted to particle sizes of from 1 to 50 mm, are dissolved in a mixture of nitric acid and hydrogen peroxide without nitrogen oxides arising, and, by evaporation and cooling, potassium nitrate, sodium chloride, and sodium nitrate are obtained sequentially by fractional crystallization.
REFERENCES:
patent: 1194465 (1916-08-01), Bassett
patent: 1300947 (1919-04-01), Freeth
patent: 1516550 (1924-11-01), Smith
patent: 1517046 (1924-11-01), Burdick
patent: 1915428 (1933-06-01), Lambert
patent: 2024370 (1935-12-01), Kaselitz
patent: 3096034 (1963-07-01), Schmidlapp
patent: 3949052 (1976-04-01), Muller et al.
patent: 3953571 (1976-04-01), Muller et al.
patent: 4776930 (1988-10-01), Bianchi et al.
patent: 4797981 (1989-01-01), Ninane et al.
Wigger, Stefan, et al., "Recycling Chloridischer Hartereialtsalze Recovery of Waste Salts from Heat Treating Facilities," Erzemetall, vol. 49, Jul., 1996, pp. 455-462.
Gock Eberhard
Kahler Jorg
Kremer Matthias
Wahl Georg
Wigger Stefan
Bos Steven
Durferrit GmbH Thermotechnik
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