Multi-stage freeze concentrating process and apparatus

Refrigeration – Processes – Fractionally solidifying a constituent and separating the same

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Details

62123, B01D 904, C02F 122

Patent

active

046664840

ABSTRACT:
Apparatus and methods are disclosed for concentrating aqueous liquids which increase in viscosity with concentration using three stages employing screw concentrators in series which separate ice crystals from the liquid.

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patent: 3605426 (1971-09-01), Chao et al.
patent: 3817051 (1974-06-01), Seliber
patent: 4091635 (1978-05-01), Ogman
patent: 4286436 (1981-09-01), Engdahl et al.
patent: 4457769 (1984-07-01), Engdahl

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