Heat exchanger with pressure controlling restricter

Details Heat exchanger with pressure controlling restricter Heat exchanger with pressure controlling restricter

1995-10-02

1998-07-28

McMahon, Timothy

Concentrating evaporators

Processes

2611091, 261140, B01D 100

Patent

active

057858080

ABSTRACT:
A heat transfer method for a polymer mixture is disclosed, comprising the steps of transporting the polymer mixture in a flow path through a heat exchange medium and restricting the flow of the polymer mixture at a predetermined location along the flow path. This method defines a zone upstream of the flow restriction device, wherein the mixture is sufficiently pressurized to prevent vaporization of volatile components of the mixture. This method also defines a zone downstream of the flow restriction device maintained at a pressure lower than that of the upstream zone, wherein the pressure is sufficiently relieved to induce partial vaporization of volatile components of the mixture.

REFERENCES:
patent: 4068830 (1978-01-01), Gray
patent: 4522504 (1985-06-01), Greverath
patent: 4735263 (1988-04-01), Andro et al.
patent: 4881596 (1989-11-01), Bergmann et al.
patent: 4932468 (1990-06-01), Ayub
patent: 5117903 (1992-06-01), Oshiyama et al.
patent: 5307867 (1994-05-01), Yasuda et al.
patent: 5312185 (1994-05-01), Kojima et al.
patent: 5385122 (1995-01-01), Stalport et al.

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