US3620966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method high space velocity hydrogenation of olefins
Assignee: Atlantic Richfield Co
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Filing: 1970-03-02
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Granted: 1971-11-16
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Expires: 1990-03-02
Abstract
Abstract A method for the manufacture of odorless paraffinic solvents having a high degree of saturation is disclosed. The method of the present invention involves contacting an olefinic hydrocarbon feedstock of solvent boiling range with hydrogen at high space velocities in the presence of a catalyst containing platinum or a platinum-type metal and alumina to produce a product having no more than 5 percent by volume olefinic unsaturation. The alumina component of the catalyst can be derived from a precursor hydrous alumina in which crystalline trihydrate predominates.
Inventors
- 👤 Stanley C Haney
- 👤 N Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:31
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J21/00; B01J21/02; B01J21/04; B01J23/42; C; C10; C10G; C10G2400/00; C10G2400/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
12 words
The process of claim 1 wherein the platinum group metal is platinum.
Claim 2
Dependent Claim
18 words
The process of claim 1 wherein the alumina is derived by calcination of hydrous alumina predominating in trihydrate.
Claim 3
Dependent Claim
21 words
The process of claim 3 wherein the surface area of the catalyst is about 350 to 550 square meters per gram.
Claim 4
Dependent Claim
28 words
The process of claim 4 wherein there is at least a 2 percent by volume decrease in olefinic components of the product as compared to the initial feedstock.
Claim 5
Dependent Claim
42 words
The process of claim 1 wherein the temperature is about 400* to 500* F., the pressure is about 400 to 550 p.s.i.g. and the space velocity is about 20 to 30 weight units of feed per weight unit of catalyst per hour.
Claim 6
Dependent Claim
12 words
The process of claim 6 wherein the platinum group metal is platinum.
Claim 7
Dependent Claim
18 words
The process of claim 6 wherein the alumina is derived by calcination of hydrous alumina predominating in trihydrate.
Claim 8
Dependent Claim
21 words
The process of claim 8 wherein the surface area of the catalyst is about 350 to 550 square meters per gram.
Claim 9
Dependent Claim
28 words
The process of claim 9 wherein there is at least a 2 percent by volume decrease in olefinic components of the product as compared to the initial feedstock.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |