Method and apparatus for separation of polymer from a slurry

Details Method and apparatus for separation of polymer from a slurry Method and apparatus for separation of polymer from a slurry

2011-03-22

2011-03-22

Teskin, Fred M (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

C159S017100, C159S017200, C159S026100, C159S027100

Reexamination Certificate

active

07910689

ABSTRACT:
Provided for separating polymer from a slurry comprising polymer and unreacted carrier fluid is (a) a method comprising supplying slurry to a first heating means to increase the temperature of the slurry, using a first separator means to extract a portion of unreacted carrier fluid from the slurry to obtain a slurry enriched in polymer, supplying the enriched slurry to a second heating means to increase the temperature of the enriched slurry, and using a second separator means to extract an additional portion of unreacted carrier fluid from the enriched slurry to obtain a further enriched slurry, and (b) an apparatus comprising a first heating means, a first separator means, a second heating means and a second separator means.

REFERENCES:
patent: 4087602 (1978-05-01), Mietzner et al.
patent: 6815511 (2004-11-01), Verser et al.
patent: 6818186 (2004-11-01), Burns et al.
patent: 7034090 (2006-04-01), Kendrick
patent: 7087685 (2006-08-01), Burns et al.
patent: 2006/0287442 (2006-12-01), McElvain et al.
patent: 2 030 153 (1980-04-01), None
patent: WO 93/11171 (1993-06-01), None
patent: WO 2004/000891 (2003-12-01), None

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