Process for the separation of insoluble materials in the product

Details Process for the separation of insoluble materials in the product Process for the separation of insoluble materials in the product

1978-08-16

1980-05-13

Bernstein, Hiram H.

Chemistry: physical processes

Physical processes

Crystallization

423206T, B01D 902

Patent

active

042026679

ABSTRACT:
An improved process for the production of soda ash from trona including the steps of sizing the trona, heating the trona to eliminate water and carbon dioxide therefrom, dissolving the trona in an aqueous medium to obtain a solution thereof, removing insoluble solid materials from the solution, crystallizing sodium carbonate monohydrate from the solution, and heating the crystallized sodium carbonate monohydrate to produce soda ash. The improvement of the invention comprises the step of removing insoluble solid materials from the solution of trona by classifying the insoluble solid materials in a plurality of hydroclones.

REFERENCES:
patent: 3479134 (1969-11-01), Warzel
patent: 3840120 (1974-10-01), Greenberg
patent: 4021527 (1977-05-01), Baadsguard
Trawinski, E & MJ, Sep., 1976, pp. 115-127.

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