US4994625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrogen peroxide
Assignee: Lyondell Chemical Technology LP
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Filing: 1989-12-27
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Granted: 1991-02-19
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Expires: 2009-12-27
Abstract
Abstract Hydrogen peroxide and organic active oxygen-containing compounds in an organic stream, such as that from a methyl benzyl alcohol oxidate after hydrogen peroxide separation, are selectively decomposed by contact with an alumina catalyst, the organic active oxygen materials selectively decomposing to acetophenone and methyl benzyl alcohol.
Inventors
- 👤 Rajendra S. Albal
- 👤 Robert N. Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:10
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/80; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0211; C01B13/0214; C01B13/0229; C01B13/0233; C01B13/0237; C07C29/00; C07C29/74; C07C29/88; C07C45/27; C07C45/32; C07C45/37; C07C45/39; C07C45/51; C07C45/53
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with an alumina catalyst at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
Claim 2
Dependent Claim
47 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with an alumina catalyst at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
Claim 3
Dependent Claim
56 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with an alumina catalyst comprising a noble metal supported on an alumina-containing carrier at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
Claim 4
Dependent Claim
56 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with an alumina catalyst comprising a noble metal supported on an alumina-containing carrier at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
Claim 5
Dependent Claim
49 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with a palladium on alumina catalyst at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
Claim 6
Dependent Claim
49 words
The process wherein an organic stream containing hydrogen peroxide and organic active oxygen-containing compounds are contacted with a palladium on alumina catalyst at conditions whereby the said hydrogen peroxide and organic active oxygen compounds are decomposed, said organic active oxygen-containing compounds selectively decomposing to acetophenone and methyl benzyl alcohol.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |