Patent US3969429A successfully refreshed from Google Patents.
US3969429A
Expired / Lapsed
US
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Method of producing butene-1
Assignee: Individual
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Filing: 1975-09-08
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Granted: 1976-07-13
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Expires: 1995-09-08
Abstract
Abstract The present invention relates to a method of producing butene-1. According to the invention, the method of producing butene-1 resides in dimerizing ethylene in the presence of a complex organometallic catalyst of the formula (RO) 3 TiR' .AlR 2 "OR + AlR 2 "R', where R is an alkyl radical with from 2 to 4 carbon atoms, R' = R or H, R" is the same as R, or a catalyst having the formula Ti(OR) 4 + AlR 2 "R' and modifiers such as (C 5 H 5 ) 2 TiCl 2 , oxygen, metaphenylenediamine or N-phenyl-β-naphthylamine, in the medium of solvents such as n-heptane, n-decane, toluene, diethyl ether, ethyl chloride, vinylbutyl ether, tetrahydrofuran, diphenyl ether, methylphenyl ether and mixtures thereof. The invention will find application in petrochemical processing.
Inventors
- 👤 Gennady Petrovich Belov
- 👤 Taimuraz Savelievich Dzhabiev
- 👤 Fridrikh Stepanovich Dyachkovsky
- 👤 Vyacheslav Ivanovich Smirnov
- 👤 Nelli Dzhavkharovna Karpova
- 👤 Khaim-Mordkhe Aronovich Brikenshtein
- 👤 Matrena Petrovna Gerasina
- 👤 Vladimir Evgenievich Kuzmin
- 👤 Petr Evgenievich Matkovsky
- 👤 Ljudmila Nikolaevna Russiyan
- 👤 Anatoly Dmitrievich Pomogailo
- 👤 Nikolai Mikhailovich Chirkov, deceased
- 👤 administrator by Mikhail Nikolaevich Chirkov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:39
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2/32; C07C2/34; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/16; C07C2531/22; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/952
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
105 words
A method of producing butene-metaphenylenediamine, comprising dimerizing ethylene in the presence of a complex organometallic catalyst consisting of titanium alcoholates of the formula Ti(OR) 4 and alkylaluminium of the formula AlR 2 "R', where R is an alkyl radical having from 2 to 4 carbon atoms, R' is either the same as R or is H, R" is the same as R', with said catalyst being modified by an additive for decreasing formation of by-products selected from the group consisting of dicyclopentadienyltitanium dichloride, oxygen, methaphenylenediamine, and N-phenyl-β-naphthylamine, and in the medium of a hydrocarbon solvent selected from the group consisting of n-heptane; n-decane, and toluene.
Claim 2
Independent Claim
105 words
A method of producing butene-metaphenylenediamine, comprising dimerizing ethylene in the presence of a complex organometallic catalyst consisting of titanium alcoholates of the formula Ti(OR) 4 and alkylaluminium of the formula AlR 2 "R', where R is an alkyl radical having from 2 to 4 carbon atoms, R' is either the same as R or is H, R" is the same as R', with said catalyst being modified by an additive for decreasing formation of by-products selected from the group consisting of dicyclopentadienyltitanium dichloride, oxygen, methaphenylenediamine, and N-phenyl-β-naphthylamine, and in the medium of a hydrocarbon solvent selected from the group consisting of n-heptane; n-decane, and toluene.
Claim 3
Dependent Claim
30 words
The method as claimed in claim 1, wherein dicyclopentadienyltitanium dichloride, oxygen, metaphenylenediamine, N-phenyl-β-naphthylamine are used as additives in amounts of from 0.05 to 2.0 mole per mole of said alkylaluminium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |