METHOD OF GOVERNING BUTYL RUBBER PRODUCTION Russian patent published in 2007 - IPC C08F210/12 C08C19/14 C08F8/22 

FIELD: rubber industry.

SUBSTANCE: invention relates to automation of synthetic rubber production processes and can be utilized in production of butyl rubber for different embodiments of process, for instance in production of chemically modified rubbers. Method of governing production of butyl rubber via catalytic copolymerization of isoprene and isobutylene in inert solvent is implemented for a plant comprising mixer, cooler, reactor, degasser, all interconnected by pipelines provided with control circuits including sensors-controller-valves regulating intake of isoprene, isobutylene, inert solvent, reaction charge, catalyst, level and consumption of cooling agent into cooler and into reactor and steam into degasser, reaction charge temperature and concentration sensors, reactor and degasser temperature sensors linked to controllers adjusting consumption of reactants, solvent, cooling agent, and steam. Plant further has: reaction charge supply collector, by means of which a part of reaction charge is used to produce non-modified butyl rubber and the other part to produce modified butyl rubber; total reaction charge consumption transducer; reactor; rubber crumb averaging vessel; vessels for dissolving and vessels for averaging rubber for modification; salt washing-off and neutralization towers and degasser connected with each other and to collector for supplying pulp to recovery assemblies through corresponding lines provided with control circuits controlling uptake of reaction charge, catalyst, averaged rubber crumb, rubber crumb solvent, rubber solution to be modified, modified rubber solution, cooling agent into reactor and steam into degasser; isoprene uptake sensor; modifier sensor; washing water sensor; etc. Specified parameters are the following: total productivity, modified-to-unmodified rubber production ratio, reaction charge/catalyst ratio, temperature control zones in reactors and degassers, modifier/rubber ratio, and rubber unsaturation index.

EFFECT: widened application area for butyl rubber production control and assortment of products, reduced consumption of raw materials due combined production of unmodified and unmodified rubbers.

3 cl, 2 dwg