METHOD OF CONTROLLING POLYMERISATION PROCESS WHEN PRODUCING BUTYL RUBBER Russian patent published in 2014 - IPC C08F210/12 G05D27/00 

FIELD: chemistry.

SUBSTANCE: method is carried out via copolymerisation of isoprene and isobutylene in a reactor in an inert solvent in the presence of a catalyst. The method involves loops for controlling flow of the mixture, catalyst, a stopper, liquid and gaseous ethylene. An automatic reactor launch subsystem is used in addition to the control system in operating mode. This operation is carried out in two steps, the first of which involves transitioning the control object to operating temperature, which is carried out either only using the catalyst flow control channel or with further use of the ethylene pressure control channel. The control device is a certain regulator. The second step involves switching to the operating point of the process parameter space, which is carried out by switching the ethylene pressure release loop to a nominal value.

EFFECT: high efficiency of the polymerisation section, reduced consumption of material and energy resources and safer production.

2 dwg