Separation of halogenated compounds
AssigneeHoneywell International Inc.
InventorsKane David Cook, Charles Francis Swain, Peter Brian Logsdon
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Abstract
A process for removing a chlorinated methane impurity from a stream comprising a halogenated compound other than the chlorinated methane impurity, the process comprising contacting the stream with a polymer adsorbent to produce a purified product stream, the polymer adsorbent having a pore size distribution characterized by a higher cumulative porosity as a function of the log of pore diameter than that of activated carbon.
Claims20
A process for purifying a stream comprising a halogenated compound and a chlorinated methane impurity other than said halogenated compound, said process comprising:
- contacting said stream with a polymer adsorbent to reduce the level of said chlorinated methane impurity relative to the level of said halogenated compound in said stream, said polymer adsorbent having a pore size distribution characterized by a higher cumulative porosity as a function of the log of pore diameter than that of activated carbon.
A process for purifying a stream comprising a halogenated compound and a chlorinated methane impurity other than said halogenated compound, said process comprising:
- contacting the stream with an polymeric adsorbent to reduce the level of said chlorinated methane impurity, said polymeric adsorbent comprising a matrix of at least one cross-linked styrenic polymer having a total porosity of at least about 0.8 cc/g, an average pore diameter of about 30 to about 60 Å, and a BET surface area of at least about 900 m2/g.
Dependencies are inferred from the claim text.