Refrigeration – Separator for solidified constituent of liquid mixture
Patent
1980-10-14
1982-12-28
Capossela, Ronald C.
Refrigeration
Separator for solidified constituent of liquid mixture
62384, 62464, 165132, 204274, 204DIG13, 422254, B01D 904, C02F 122
Patent
active
043654819
ABSTRACT:
The invention is an improved apparatus for the removal of sodium carbonate from cyanide plating baths. The method involves the precipitation of sodium carbonate by the effect of cooling the cyanide plating bath liquid. A container is submerged in the solution with the container opening extending above the plating bath solution level. The container is filled with dry ice and water which produces a temperature of approximately zero degrees centigrade inside of the container. The solution adjacent to the exterior of the container is cooled so that excess sodium carbonate is precipitated as a crystalline deposit. After a desired interval, the container is removed with the encrustation of sodium carbonate for disposal.
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William Blum et al., "Principles of Electroplating and Electroforming," p. 86, (1949).
Evans Carroll F.
Pearlstein Fred
Capossela Ronald C.
Edelberg Nathan
Erkkila A. Victor
Gibson Robert P.
The United States of America as represented by the Secretary of
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