Method and apparatus for crystallization of solution containing

Details Method and apparatus for crystallization of solution containing Method and apparatus for crystallization of solution containing

1978-03-29

1981-01-20

Garris, Bradley R.

Chemistry: physical processes

Physical processes

Crystallization

23307, 159 16R, 159 29, 159 45, 159 47R, 159 47WL, 422245, 422307, B01D 114, B01D 902

Patent

active

042459982

ABSTRACT:
To remove salts from a solution containing the salts, hot air is injected downwards into the solution in a concentrator, and the solution is concentrated by direct contact with the hot air, thereby enhancing an evaporation efficiency in the concentrator and preventing scale deposition in the concentrator and piping system. The solution is forcedly cooled in a crystallizer by direct contact with cool air, thereby making crystals grow in the solution within a short time. The solution and air are circulated in a closed cycle, thereby preventing a secondary environmental pollution.

REFERENCES:
patent: 508915 (1893-11-01), Cardozo
patent: 2468455 (1949-04-01), Metziger
patent: 2614035 (1952-10-01), Robinson
patent: 3402025 (1968-09-01), Garrett et al.
patent: 3526264 (1970-09-01), Young et al.
patent: 3775065 (1973-11-01), Aoyama
patent: 3918916 (1975-11-01), Garrett
patent: 3933972 (1976-01-01), Bauwens et al.

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