Liquid purification or separation – Processes – Ion exchange or selective sorption
Reexamination Certificate
2007-08-21
2007-08-21
Hopkins, Robert (Department: 1724)
Liquid purification or separation
Processes
Ion exchange or selective sorption
C210S692000
Reexamination Certificate
active
10344544
ABSTRACT:
The invention pertains to the use of a granulate for the removal of liquid, gaseous and/or dissolved organic constituents from a process stream, said granulate consisting of dimensionally stable, porous synthetic particles with an extracting agent having a boiling point higher than 350° C. at 1 bar immobilized therein, characterized in that the granulate is obtainable by suspension polymerization of a monovinyl compound in the presence of a polyvinyl compound, with at least 50% wt. % of the monomer units having an aromatic structure and with the solvent for the monomers acting both as a non-solvent for the copolymer and as an extracting agent.
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patent: 4036794 (1977-07-01), Keppler et al.
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Bos Johannes
Brinkhuis Richard Hendrikus Gerrit
Schomaker Elwin
Coats & Bennett P.L.L.C.
Hopkins Robert
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