Patent US3986844A successfully refreshed from Google Patents.
US3986844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic silicon removal from stripper overhead
Assignee: Vista Chemical Co
•
Filing: 1975-07-23
•
Granted: 1976-10-19
•
Expires: 1995-07-23
Abstract
Abstract Volatile organic silicon compounds from stripper overheads resulting from Ziegler aluminum alkyl synthesis of primary alcohols are hydrogenated to remove undesirable silicon prior to use as a fuel.
Inventors
- 👤 James E. Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:07
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
48 words
A method for the production of a fuel comprising the removal of volatile organic silicon compounds from stripper overhead streams resulting from the synthetic primary alcohol production using Ziegler aluminum alkyl processes, hydrogenating the silicon-containing compounds herein over hydrogenation catalysts and using the resultant material as a fuel.
Claim 2
Independent Claim
48 words
A method for the production of a fuel comprising the removal of volatile organic silicon compounds from stripper overhead streams resulting from the synthetic primary alcohol production using Ziegler aluminum alkyl processes, hydrogenating the silicon-containing compounds herein over hydrogenation catalysts and using the resultant material as a fuel.
Claim 3
Dependent Claim
26 words
A method as described in claim 1 wherein the catalyst is selected from the group consisting of Ni on kieselguhr, Ni on alumina, or copper chromite.
Claim 4
Dependent Claim
24 words
A method as described in claim 2 wherein the hydrogenation is carried out at a temperature of from about 150° to about 300° C.
Claim 5
Dependent Claim
24 words
A method as described in claim 2 wherein the hydrogenation is carried out under at least 600 pounds per square inch gauge hydrogen pressure.
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) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |