Freeze refining method

Details Freeze refining method Freeze refining method

1974-06-07

1976-06-29

Emery, Stephen J.

Refrigeration

Storage of solidified or liquified gas

Liquified gas transferred as liquid

62 71, 62 73, 62345, 23273F, 23273C, 23295R, 23296, B01D 900, B01D 904

Patent

active

039664457

ABSTRACT:
An improved freeze refining method including the steps of collecting a heterogeneons material in crystalline form from a heated melt containing pure and impure materials and removing the collected crystals while maintaining the integrity of the crystals.

REFERENCES:
patent: 911238 (1909-02-01), Havenstrite
patent: 2764880 (1956-10-01), Wenzelberger
patent: 2780663 (1957-02-01), Gunness
patent: 2945903 (1960-07-01), Findley
patent: 3092673 (1963-06-01), Rush
patent: 3261170 (1966-07-01), McCarthy
patent: 3400548 (1968-09-01), Drayer
patent: 3543531 (1970-12-01), Adams

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