METHOD OF SEPARATING LOW-MOLECULAR DIENE RUBBERS FROM POLYMERISATE Russian patent published in 2009 - IPC C08C2/06 

Abstract SU 1840786 A1

FIELD: chemistry.

SUBSTANCE: invention relates to technology of separating diene rubbers from polymerisate and can be applied in oil-chemical industry. Method is realised by processing of polymerisate with water steam, condensation of obtained steam- hydrocarbon mixture and separating of hydrocarbons from condensate, separation of hydrocarbons being carried out by extraction with water-insoluble hydrocarbon solvents with boiling temperature -4-70°C with volume ratio of extragent condensate from 0.3:1 for 2:1.

EFFECT: ensuring more complete extraction of hydrocarbons, reduction of electricity consumption and increase of waste water purity.

5 tbl, 5 ex

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SU 1 840 786 A1

Authors

Kofman Vadim Igorevich

Lysanov Valerij Aleksandrovich

Basov Boris Konstantinovich

Rabotnov Vadim Valerianovich

Timofeev Boris Aleksandrovich

Dates

2009-08-20Published

1976-10-20Filed