Carbon molecular sieves for purification of chlorofluorocarbons

Details Carbon molecular sieves for purification of chlorofluorocarbons Carbon molecular sieves for purification of chlorofluorocarbons

1989-01-30

1990-02-20

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 75, B01D 5304

Patent

active

049023128

ABSTRACT:
Chlorofluorocarbons are purified by removing hydrofluoric and hydrochloric acids with a carbon molecular sieve having an average pore size of about 3.5 Angstroms with no more than about 5% of the pores having a size less than 3.2 Angstroms and no more than about 5% of the pores having a size greater than 4.2 Angstroms.

REFERENCES:
patent: 3947558 (1976-03-01), van Eijl
patent: 3976447 (1976-08-01), Merchant et al.
patent: 4102981 (1978-07-01), Weychanin et al.
patent: 4128626 (1978-12-01), Merchant et al.
patent: 4820318 (1989-04-01), Chang et al.
Juntgen et al., "Carbon molecular sieves: production from coal and application in gas separation", FUEL, 1981, vol. 60, Sep., pp. 817-822.

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