Patent US2800324A successfully refreshed from Google Patents.
Patent US3879485A successfully refreshed from Google Patents.
US3879485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing butene-1
Assignee: BRIKENSHTEIN KHAIM MORDKHE ARO
•
Filing: 1974-01-25
•
Granted: 1975-04-22
•
Expires: 1994-01-25
Abstract
Abstract Butene-1 is prepared by dimerizing ethylene in the presence of a complex organometallic catalyst of the formula (RO)3TiR''.AlR2''''OR + AlR2''''R'', where R is an alkyl radical with the number of carbon atoms from 2 to 4, R'' R or H, R'''' is the same as R, or of a catalyst of the formula Ti(OR)4 + AlR2''''R'' and modifiers such as (C5H5)2TiCl2, oxygen, metaphenylenediamine or N-phenyl- Beta napthylamine, in the medium of solvents such as n-heptane, ndecane, toluene, diethyl ether, ethyl chloride, vinylbutyl ether, tetrahydrofuran, diphenyl ether, methylphenyl ether and their mixtures.
Inventors
- 👤 Gennady Petrovich Belov
- 👤 Taimuraz Savelievich Dzhabiev
- 👤 Fridrikh Stepanovi Dyachkovsky
- 👤 Vyacheslav Smirnov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:18
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF PRODUCING BUTANE-1, RESIDING IN THAT ETHYLENE IS DIMERIZED TO BUTENE-1 IN THE PRESENCE OF A COMPLEX ORGANOMETALLIC CATALYST CONSISTING OF TITANIUM ALCOHOLATES OF THE FORMULA (RO)3TIR''.ALR2"OR AND ALKYLALUMINUM OF THE FORMULA ALR2"R'', WHERE R IS AN ALKYL RADICAL WITH THE NUMBER OF CARBON ATOMS FROM 2 TO 4, R'' = R OR H, R" IS THE SAME AS R, IN THE MEDIUM OF HYDROCARBON SOLVENTS SELECTED FROM THE GROUP CONSISTING OF N-HEPTANE, N-DECANE AND TOLUENE.
Claim 2
Independent Claim
78 words
A METHOD OF PRODUCING BUTANE-1, RESIDING IN THAT ETHYLENE IS DIMERIZED TO BUTENE-1 IN THE PRESENCE OF A COMPLEX ORGANOMETALLIC CATALYST CONSISTING OF TITANIUM ALCOHOLATES OF THE FORMULA (RO)3TIR''.ALR2"OR AND ALKYLALUMINUM OF THE FORMULA ALR2"R'', WHERE R IS AN ALKYL RADICAL WITH THE NUMBER OF CARBON ATOMS FROM 2 TO 4, R'' = R OR H, R" IS THE SAME AS R, IN THE MEDIUM OF HYDROCARBON SOLVENTS SELECTED FROM THE GROUP CONSISTING OF N-HEPTANE, N-DECANE AND TOLUENE.
References Cited (Backward Citations)
US2943125A
Cited
US3686350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |