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2 268 870

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C1

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IPC

C07C7/08(2006-01-01)

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Application

2004133249/04, 2004-11-15

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Start date

2004-11-15

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Actual filing date

2004-11-15

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Published

2006-01-27

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Inventor

Busygin Vladimir MikhajlovichGil'Manov Khamit KhamisovichMal'Tsev Leonid VeniaminovichTokinov Aleksej IvanovichKutuev Leonid KhubulaevichShijapov Ravil' TagirovichMukhamadeev Minnakhmat Salikhovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

C HYDROCARBON FRACTION SEPARATION PROCESS Russian patent published in 2006 - IPC C07C7/08 

Abstract RU 2268870 C1

FIELD: petrochemical processes.

SUBSTANCE: C4-hydrocarbon fractions obtained by cracking and/or pyrolysis of hydrocarbon feedstock in presence of amine-type extractant are subjected to rectification additionally involving butylene-isobutylene fraction resulting from butylene-to-isobutylene isomerization and containing 30-70% butylenes, 25-65% isobutylene, and 3-8% butanes. Weight ratio of C4-hydrocarbon fractions to added butylene-isobutylene fraction is 1:(3-7).

EFFECT: increased separation efficiency.

3 ex

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RU 2 268 870 C1

Authors

Busygin Vladimir Mikhajlovich

Gil'Manov Khamit Khamisovich

Mal'Tsev Leonid Veniaminovich

Tokinov Aleksej Ivanovich

Kutuev Leonid Khubulaevich

Shijapov Ravil' Tagirovich

Mukhamadeev Minnakhmat Salikhovich

Dates

2006-01-27—Published

2004-11-15—Filed

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