Equipment for air distillation to produce argon

Details Equipment for air distillation to produce argon Equipment for air distillation to produce argon

1990-07-16

1992-01-07

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 36, 62 42, F25J 304

Patent

active

050787667

ABSTRACT:
The column for the production of impure argon (2) is surmounted by an auxiliary column section (9) which is cooled to produce reflux by vaporizing poor liquid withdrawn from the head portion of the mean pressure column (3) and expanded. Application to the addition of an argon side column to an air distillation double column.

REFERENCES:
patent: 3127260 (1964-03-01), Smith
patent: 3729943 (1973-05-01), Petit
patent: 3751933 (1973-08-01), Balabaev et al.
patent: 4575388 (1986-03-01), Okada
patent: 4747859 (1988-05-01), Gladman et al.
patent: 4756731 (1988-07-01), Erickson
patent: 4824453 (1989-04-01), Rottmann et al.

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