Method for the continuous crystallization of a solid component w

Details Method for the continuous crystallization of a solid component w Method for the continuous crystallization of a solid component w

1975-09-09

1976-08-31

Sofer, Jack

Concentrating evaporators

Processes

Film

159 6WH, 159 6W, 159 13C, B01D 122

Patent

active

039779360

ABSTRACT:
A method for continuously crystallizing a solid component by continuously feeding a solution of the solid component in water or an organic solvent to a centrifugal film evaporator equipped with a scraper blade, which comprises feeding the solution from the top of the evaporator which comprises a heating section in the upper stream and a cooling section in the lower stream, forming a film of the solution on the wall of the evaporator, passing the film of the solution down into the heating section in order to evaporate the solvent, discharging the evaporated solvent from an upper outlet by feeding an inert gas or aspirating the solvent vapor in order to prevent the passage of evaporated solvent into the cooling section and contacting the cooling section of the evaporator with the concentrated solution whereby a crystallized solid or a slurry of solid particles is formed.

REFERENCES:
patent: 2863888 (1958-12-01), Schurman

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