US4544787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparative process for supports
Assignee: Atlantic Richfield Co
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Filing: 1984-04-16
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Granted: 1985-10-01
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Expires: 2004-04-16
Abstract
Abstract An improved process for the production of a contact agent comprising digesting a reducible oxide of at least one metal, the oxide of which forms a reduced metal oxide, and a support in the presence of a silicon component, drying the precipitate of the reducible oxide and calcining the precipitate to form the contact agent.
Inventors
- 👤 E. William Breder, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/76; C07C2/82; C07C2/84; C07C2521/00; C07C2521/06; C07C2521/08; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/08; C07C2523/14; C07C2523/16; C07C2523/18; C07C2523/32; C07C2523/34; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
In an improved method for converting a gas comprising methane to higher hydrocarbons which comprises contacting said gas with a contact agent, said contact agent comprising a component of at least one metal, the oxide of which is reduced and produces higher hydrocarbons and water when contacted with methane at selected temperatures within the range of about 500° to about 1000° C., the improvement which comprises employing said contact agent produced by the steps of: (a) combining hydroxylated magnesia and a component of silicon which forms silica and is readily suspendible in a continuous medium; (b) contacting said combined components with said component of at least one metal; and (c) calcining said contacted components to form said contact agent.
Claim 2
Dependent Claim
119 words
In an improved method for converting a gas comprising methane to higher hydrocarbons which comprises contacting said gas with a contact agent, said contact agent comprising a component of at least one metal, the oxide of which is reduced and produces higher hydrocarbons and water when contacted with methane at selected temperatures within the range of about 500° to about 1000° C., the improvement which comprises employing said contact agent produced by the steps of: (a) combining hydroxylated magnesia and a component of silicon which forms silica and is readily suspendible in a continuous medium; (b) contacting said combined components with said component of at least one metal; and (c) calcining said contacted components to form said contact agent.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said at least one metal is selected from a group consisting of manganese, tin, indium, germanium, antimony, lead, bismuth, and mixtures thereof.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said silicon component is suspended as a gel or a solution.
Claim 5
Dependent Claim
23 words
The method of claim 3 wherein said silicon component is selected from a group consisting of colloidal silica, sodium silicate, and mixtures thereof.
Claim 6
Dependent Claim
22 words
The method of claim 4 wherein said silicon component comprises between about 5 and about 15 weight percent of said combined components.
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) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |