US3725489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of alkenes employing an organometallic hydrogenation catalyst
Assignee: Honeywell International Inc
•
Filing: 1969-10-02
•
Granted: 1973-04-03
•
Expires: 1989-10-02
Abstract
Abstract WHEREIN Q is phosphorous, arsenic or antimony, and wherein R1, R2, R3, and R4 are independently hydrogen, C1 to C4 alkyl, C1 to C4 alkoxy or C1 to C6 dialkyl amino, and wherein n is 10 to 500, are potent catalysts for the hydrogenation of ethylenic or acetylenic double bonds. Complexes of rhodium, ruthenium, platinum, palladium, osmium, or iridium with polymers of the structure:
Inventors
- 👤 R Fuhrmann
- 👤 Peppen J Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:05
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; B; B01; B01J; B01J31/00; B01J31/16; B01J31/165; B01J31/1658; B01J31/18; B01J31/1895; B01J31/24; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/821; B01J2531/822; B01J2531/824; B01J2531/825; B01J2531/827; B01J2531/828; C07C2531/00; C07C2531/02; C07C2531/06; C07C2531/16; C07C2531/22; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A process in accordance with claim 1 wherein said contacting is with from about 0.5 to 2.0 weight percent of said complex.
Claim 2
Dependent Claim
24 words
A process in accordance with claim 1 wherein said complex is activated by contacting with hydrogen prior to contacting said catalyst with said compound.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |