US4005031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nickel peroxide oxidizing agent
Assignee: Hoffmann La Roche Inc
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Filing: 1976-02-19
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Granted: 1977-01-25
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Expires: 1996-02-19
Abstract
Abstract Nickel peroxide on a fine, free-flowing carrier, which is formed by treating nickel oxide, deposited on the carrier, with an alkali hypohalite or alkali persulfate in an aqueous alkaline medium, and its use for selectively oxidizing an unsaturated alcohol to the corresponding carbonyl compound.
Inventors
- 👤 Joseph Donald Surmatis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:49
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/14; C01; C01B; C01B15/00; C01B15/04; C01B15/047; C07C45/00; C07C45/27; C07C45/29; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
29 words
A process for preparing nickel peroxide oxidizing agent, comprising: treating nickel oxide, deposited on fine, free-flowing graphite, with an alkali hypohalite or alkali persulfate in an aqueous alkaline medium.
Claim 2
Dependent Claim
29 words
A process for preparing nickel peroxide oxidizing agent, comprising: treating nickel oxide, deposited on fine, free-flowing graphite, with an alkali hypohalite or alkali persulfate in an aqueous alkaline medium.
Claim 3
Dependent Claim
41 words
The process of claim 1 wherein said nickel oxide is deposited on said graphite by forming an aqueous mixture, in which is dissolved a water-soluble nickel salt and which contains said graphite, and then treating said aqueous mixture with an alkali.
Claim 4
Dependent Claim
18 words
The process of claim 2 wherein said alkali is an alkali metal hydroxide or alkaline earth metal hydroxide.
Claim 5
Dependent Claim
21 words
The process of claim 2 wherein said aqueous mixture is formed by treating a water-insoluble nickel salt with an aqueous acid.
Claim 6
Dependent Claim
13 words
The process of claim 4 wherein said water-insoluble nickel salt is nickel carbonate.
Claim 7
Dependent Claim
17 words
The process of claim 4 wherein said acid is a mineral acid or a lower alkanoic acid.
Claim 8
Dependent Claim
14 words
The process of claim 1 wherein said graphite is of 65 to 325 mesh.
Claim 9
Dependent Claim
10 words
The oxidizing agent formed by the process of claim 1.
Claim 10
Dependent Claim
53 words
In a process for oxidizing unsaturated alcohols in an inert organic solvent medium with a nickel peroxide oxidizing agent prepared by treating nickel oxide with an alkali hypohalite or an alkali persulfate in an aqueous alkaline medium, the improvement which comprises: depositing said nickel oxide onto fine free-flowing graphite prior to said treatment.
Claim 11
Dependent Claim
53 words
In a process for oxidizing unsaturated alcohols in an inert organic solvent medium with a nickel peroxide oxidizing agent prepared by treating nickel oxide with an alkali hypohalite or an alkali persulfate in an aqueous alkaline medium, the improvement which comprises: depositing said nickel oxide onto fine free-flowing graphite prior to said treatment.
Claim 12
Dependent Claim
41 words
The process of claim 9 wherein said nickel oxide is deposited on said graphite by forming an aqueous mixture, in which is dissolved a water-soluble nickel salt and which contains said graphite, and then treating said aqueous mixture with an alkali.
Claim 13
Dependent Claim
18 words
The process of claim 10 wherein said alkali is an alkali metal hydroxide or alkaline earth metal hydroxide.
Claim 14
Dependent Claim
22 words
The process of claim 11 wherein said water-soluble nickel salt is formed by treating a water-insoluble nickel salt with an aqueous acid.
Claim 15
Dependent Claim
13 words
The process of claim 12 wherein said water-insoluble nickel salt is nickel carbonate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |