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2 624 646

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IPC

F26B17/18(2006-01-01)

F26B17/20(2006-01-01)

B01D1/28(2006-01-01)

(21) (22)

Application

2016142265, 2016-10-26

(24)

Start date

2016-10-26

(22)

Actual filing date

2016-10-26

(45)

Published

2017-07-05

(72)

Inventor

Sharifullin Ilfat GabdulvakhitovichNesterov Oleg NikolaevichSakhabutdinov Anas GaptynurovichAglyamov Irek AngamovichGavrikov Viktor NikolaevichPoretskov Anatolij YurevichKhabibullin Rafik KhatmullaevichKhatmullin Rishat YulinovichGazetdinov Ajdar KhanifovichKubanov Kirill MikhajlovichSofronova Olga VladimirovnaChelnokova Saviya Minnezakievna

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo

METHOD OF EXTRUSION DRYING HALOBUTYL RUBBERS Russian patent published in 2017 - IPC F26B17/18 F26B17/20 B01D1/28

Abstract RU 2624646 C1

FIELD: chemistry.

SUBSTANCE: method is carried out by removing moisture from wet crumbs of halobutyl rubbers produced by direct halogenation of a butyl rubber dissolved in an inert solvent in a drying unit consisting of 2 or more screw machines, the latter of which involves thermal evaporation of moisture, with supply of high-pressure nitrogen in the compression zone of this machine. Herewith the excess of the nitrogen pressure above the pressure in the compression zone is 2.0-5.0 MPa, and the point of the nitrogen input is in the 35-50 cm from the spun plate of the last screw machine.

EFFECT: increasing the efficiency of drying rubber without reducing its quality.

1 tbl, 10 ex

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RU 2 624 646 C1

Authors

Sharifullin Ilfat Gabdulvakhitovich

Nesterov Oleg Nikolaevich

Sakhabutdinov Anas Gaptynurovich

Aglyamov Irek Angamovich

Gavrikov Viktor Nikolaevich

Poretskov Anatolij Yurevich

Khabibullin Rafik Khatmullaevich

Khatmullin Rishat Yulinovich

Gazetdinov Ajdar Khanifovich

Kubanov Kirill Mikhajlovich

Sofronova Olga Vladimirovna

Chelnokova Saviya Minnezakievna

Dates

2017-07-05—Published

2016-10-26—Filed