US4462978A
Expired / Lapsed
US
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Preparation of hydrogen peroxide
Assignee: Messer LLC
•
Filing: 1982-12-10
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Granted: 1984-07-31
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Expires: 2002-12-10
Abstract
Abstract Hydrogen peroxide is produced in a reaction between carbon monoxide, oxygen, and water in the presence of a solvent using a Group 8 noble metal as a catalyst. Especially preferred as the working solution is palladium chloride in acetone.
Inventors
- 👤 William F. Brill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:34
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/027; C01B15/0275
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
65 words
A process for producing hydrogen peroxide by reacting carbon monoxide, oxygen, and water in the presence of a Group 8 noble metal catalyst wherein the improvement comprises carrying out said reaction at temperatures in the range of -78° to +150° C. in a working solution consisting essentially of water and at least one organic solvent selected from the group consisting of carbonyl compounds and nitriles.
Claim 2
Dependent Claim
65 words
A process for producing hydrogen peroxide by reacting carbon monoxide, oxygen, and water in the presence of a Group 8 noble metal catalyst wherein the improvement comprises carrying out said reaction at temperatures in the range of -78° to +150° C. in a working solution consisting essentially of water and at least one organic solvent selected from the group consisting of carbonyl compounds and nitriles.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein said organic solvent is a carbonyl compound.
Claim 4
Dependent Claim
11 words
The process of claim 2 wherein said carbonyl compound is acetone.
Claim 5
Dependent Claim
16 words
The process of claim 2 wherein said Group 8 noble metal compound is a palladium compound.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein said catalyst is employed in a concentration of 0.001 to 0.5 gm-mol for each liter of working solution.
Claim 7
Dependent Claim
24 words
The process of claim 5 wherein said catalyst is employed in a concentration of 0.01 to 0.1 gm-mol for each liter of working solution.
Claim 8
Dependent Claim
19 words
The process of claim 1 wherein said water is about 0.5 to 5 wt % of said working solution.
Claim 9
Dependent Claim
22 words
The process of claim 1 wherein said carbon monoxide and oxygen are maintained at a total pressure above 1 kg/cm 2 absolute.
Claim 10
Dependent Claim
19 words
The process of claim 1 wherein the molar ratio of carbon monoxide is oxygen is between 1/9 and 9/1.
Claim 11
Dependent Claim
17 words
The process of claim 1 wherein the temperature is in the range of -20° to +50° C.
References Cited (Backward Citations)
US3490872A
Cited
US4223001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |