Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1978-04-10
1980-09-23
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
C01F 530
Patent
active
042242916
ABSTRACT:
A method of dehydrating carnallite, residing in that preliminarily enriched carnallite with 39-41 wt. % water is heated up to 205.degree.-230.degree. C. by fuel combustion products having a temperature of 500.degree.-600.degree. C., and a partially dehydrated carnallite with 3-8 wt. % water is obtained. Said dehydrated carnallite is melted in a reaction zone and the melt is subjected to the action of a chlorinating agent. Thereafter the melted carnallite is allowed to settle from solid impurities and, as a result, dehydrated carnallite is obtained with water content less than 0.5 wt. %. The melting of partially dehydrated carnallite with 3-8 wt. % water is performed with the aid of fuel combustion products having a temperature of 700.degree.-1150.degree. C. These products are introduced tangentially to the surface defining the reaction zone at a rate ensuring the formation of an intensive eddy flow of gases, which occupies the whole volume of the reaction zone. The partially dehydrated carnallite is thrown on the side surface of the reaction zone by the eddy flow due to the action of centrifugal forces, a continuous film of the melt being formed on the side surface of the reaction zone. Gases containing the products of fuel combustion and the gases liberating upon interaction of the chlorinating agent with the carnallite melt are removed from the reaction zone.
REFERENCES:
patent: 2924887 (1960-02-01), Marshall, Jr.
patent: 3319349 (1967-05-01), Heinemann
patent: 3494047 (1970-02-01), Geiger et al.
patent: 3600817 (1971-08-01), Klein
Andreev German A.
Eltsov Boris I.
Kechina Galina D.
Korotkov Jury A.
Mikhailov Eduard F.
Langel Wayne A.
Vertiz O. R.
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