Process and apparatus for performing a polymerisation in a tube

Details Process and apparatus for performing a polymerisation in a tube Process and apparatus for performing a polymerisation in a tube

1996-07-22

1997-02-11

Weber, Thomas R.

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

Synthetic resins

Polymerizing in tubular or loop reactor

526 68, 5263297, 5263472, 422135, C08F 202

Patent

active

056022166

ABSTRACT:
The process for carrying out a polymerization in a tube reactor (1) comprises the following steps: Freshly introduced monomer (M) is mixed with a returned monomer-polymer mixture. The mixture is cooled to a prescribed initial temperature (heat exchanger 4). A polymerization starter (S) which is inactivatable upon heating above a decomposition temperature is admixed. A partial polymerization takes place in the tube reactor. The mixture leaving the tube reactor is heated up to at least the said decomposition temperature (heat exchanger 2). Finally, a portion of the mixture is returned (pump 3) and the other portion removed as product (P).

REFERENCES:
patent: 5194525 (1993-03-01), Miura et al.
patent: 5391655 (1995-02-01), Brandstetter et al.

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