Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1976-11-19
1978-07-11
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 12, F26B 300
Patent
active
040993353
ABSTRACT:
A process for drying polymer slurry produced in slurry or bulk phase polymerization comprising removing, in a gas stream which contains polymerizable monomer, easily vaporizable liquid components from a stirred drying zone containing a large, in comparison with the volume of slurry from said polymerization added to said zone, amount of solid polymer particulate to form substantially dry polymer particulate using in essential part polymerization heat generated in said zone by carrying out therein a fraction of the overall amount of polymerization. The resulting polymer can be finished conventionally or by transferring said particulate to a melting zone in which an easily transferable polymer melt is formed, said melting accomplished in substantial part using polymerization heat generated in said melting zone by a fraction of the overall amount of polymerization.
REFERENCES:
patent: 3631605 (1972-01-01), Wylie et al.
patent: 3927983 (1975-12-01), Gordon et al.
patent: 3957448 (1976-05-01), Shepard et al.
patent: 3965083 (1976-06-01), Jezl et al.
Jezl James L.
Peters Edwin F.
Camby John J.
Gilkes Arthur G.
Hensley Stanley L.
McClain William T.
Standard Oil Company (Indiana)
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