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RU

(11)

2 683 093

(13)

C1

(51)

IPC

C08J11/02(2006-01-01)

(21) (22)

Application

2018119395, 2018-05-25

(24)

Start date

2018-05-25

(22)

Actual filing date

2018-05-25

(45)

Published

2019-03-26

(72)

Inventor

Zakharov Vadim PetrovichShevlyakov Fedor BorisovichBulatova Olga Fedorovna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet"

METHOD OF PURIFICATION OF THE RETURN SOLVENT Russian patent published in 2019 - IPC C08J11/02 

Abstract RU 2683093 C1

FIELD: technological processes.

SUBSTANCE: invention relates to the production of synthetic rubbers obtained by solution polymerization, in particular, to the regeneration of returnable solvent from the stage of separation of rubbers on the basis of dienes. Method of purification of the return solvent is carried out by treating the solvent with a solution of a neutralizing agent and distillation. Hydrocarbon-soluble morpholine with a dosage of 50 mg/kg is used as a neutralizing agent.

EFFECT: cleaning of returnable solvent from halogen-containing impurities is ensured, maintenance of a neutral slightly alkaline environment in it to eliminate equipment corrosion, increase safety of production of mortar polymers.

1 cl, 4 tbl, 1 ex

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RU 2 683 093 C1

Authors

Zakharov Vadim Petrovich

Shevlyakov Fedor Borisovich

Bulatova Olga Fedorovna

Dates

2019-03-26—Published

2018-05-25—Filed

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