Temperature controlling method for polymerization reactors

Details Temperature controlling method for polymerization reactors Temperature controlling method for polymerization reactors

1985-07-23

1988-06-21

Schofer, Joseph L.

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

Synthetic resins

Effecting a change in a polymerization process in response...

526 68, 526 67, 5263442, 422138, C08F 210

Patent

active

047526408

ABSTRACT:
A reflux condenser attracts attention from the standpoints of improvement in productivity by increase in cooling capacity as well as saving in energy, and recently, it is frequently employed in particularly large-sized polymerization reactors. But, the well-known cooling method has a problem that the overall heat transfer coefficient of condensers lowers with the progress of polymerization to result in the reduction of heat-removing capacity and reduction of the stability of polymerization temperature control. In order to solve the above problems, in the present invention the temperature is controlled with the heat amount removed by the condenser as a control variable, coupled with intermittent purge of a part of the unreacted monomer from the reflux condenser.

REFERENCES:
patent: 4024329 (1977-05-01), Lauer et al.
patent: 4061848 (1977-12-01), Sistig et al.

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