Process for drying difluoromethane

Details Process for drying difluoromethane Process for drying difluoromethane

2005-03-15

2005-03-15

Cintins, Ivars C. (Department: 1724)

Liquid purification or separation

Processes

Ion exchange or selective sorption

C095S123000, C210S689000

Reexamination Certificate

active

06866787

ABSTRACT:
Process for drying wet F32, which comprises placing a stream of the said F32 in continuous contact with a feed stock of a composition comprising a molecular sieve chosen from a 3A type sieve, at a temperature of between 5 and 78° C. and at a pressure of between 0.5 and 25 atm.

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patent: 5574214 (1996-11-01), Balton et al.
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patent: 6020281 (2000-02-01), Lavin et al.
patent: 209 182 (1982-07-01), None
patent: 2 657 870 (1990-02-01), None
patent: 8-173799 (1995-02-01), None
patent: 8 173799 (1996-07-01), None
patent: WO 9115445 (1991-03-01), None
French Search Report.

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