Process for the production of aqueous solutions of sodium chlori

Details Process for the production of aqueous solutions of sodium chlori Process for the production of aqueous solutions of sodium chlori

1981-03-04

1982-08-10

Chiesa, Richard L.

Chemistry: physical processes

Physical processes

2104331, 210540, 210779, 422261, 423179, 423499, B01J 802

Patent

active

043436218

ABSTRACT:
The invention relates to an open dissolving chamber for rock salt and to a process for the production, free from vapors, of concentrated, aqueous sodium chloride crude brine by continuously dissolving rock salt in this dissolving chamber. The dissolving chamber contains a heap of rock salt with which the brine which is unsaturated in respect of salt comes into contact. The brine thereby becomes saturated with sodium chloride and then passes out of the dissolving chamber. In the present process, the unsaturated brine enters at the base of the dissolving chamber. The saturated crude brine is removed from the rock salt through at least one vertical or inclined screen which largely holds back suspended rock salt particles. The liquid level of the saturated crude brine in the dissolving chamber should not reach the surface of the heap of rock salt, and the side of the screen facing the interior of the dissolving chamber should be completely covered with a mixture of saturated crude brine and rock salt.

REFERENCES:
patent: 2551494 (1951-05-01), Kaufmann
patent: 2552524 (1951-05-01), Cunningham
patent: 2603534 (1952-07-01), Miller
patent: 2630377 (1953-03-01), Lewis
patent: 3047276 (1962-07-01), Sebald et al.
patent: 3130016 (1964-04-01), Grier
patent: 3363995 (1968-01-01), Driskell et al.
patent: 3623848 (1971-11-01), Fisher et al.
patent: 3800026 (1974-03-01), Morgan
patent: 4116640 (1978-09-01), Leverenz

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