US5420313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process for the epoxidation of olefinic compounds
Assignee: BP Chemicals Ltd
•
Filing: 1994-05-02
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Granted: 1995-05-30
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Expires: 2014-05-02
Abstract
Abstract A catalyst composition having high epoxidation activity and resistant to leaching of its metal comprises molybdenum, vanadium, tungsten and/or titanium complexed to an organic or inorganic support through the intermediacy of an imidazole ligand. The catalyst may be used in epoxidation of olefinic compounds.
Inventors
- 👤 Malcolm J. Cunnington
- 👤 Matthew M. Miller
- 👤 David C. Sherrington
- 👤 Sydney Simpson
- 👤 Gunnar Olason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:56
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/04; B; B01; B01J; B01J31/00; B01J31/02; B01J31/06; B01J31/16; B01J31/165; B01J31/1658; B01J31/18; B01J31/1805; B01J31/181; C07D301/00; C07D301/02; C07D301/03; C07D301/12; C07D301/14; C07D301/19; B01J2231/00; B01J2231/70; B01J2231/72; B01J2531/00; B01J2531/40; B01J2531/46; B01J2531/50; B01J2531/56; B01J2531/60; B01J2531/64; B01J2531/66
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
53 words
A process for the epoxidation of an olefinic compound with a peroxide which process comprises reacting the olefinic compound with a peroxide in the presence of a catalyst composition comprising at least one of molybdenum, vanadium, tungsten and titanium complexed to an organic or inorganic support through the intermediacy of an imidazole ligand.
Claim 2
Dependent Claim
53 words
A process for the epoxidation of an olefinic compound with a peroxide which process comprises reacting the olefinic compound with a peroxide in the presence of a catalyst composition comprising at least one of molybdenum, vanadium, tungsten and titanium complexed to an organic or inorganic support through the intermediacy of an imidazole ligand.
Claim 3
Dependent Claim
47 words
A process as claimed in claim 1 in which the olefinic compound has the general formula (II): R--CH=CH--R' (II) wherein R and R' are the same or different and are independently hydrogen; hydrocarbyl groups; substituted hydrocarbyl groups; or together form a cyclic hydrocarbyl or substituted hydrocarbyl group.
Claim 4
Dependent Claim
44 words
A process as claimed in claim 2 in which the R and R' groups are independently alkyl, aryl, alkylaryl, cycloalkyl or alkylcycloalkyl groups each having less than 30 carbon atoms, or together form a cycloalkyl or alkylcycloalkyl group having less than 10 carbon atoms.
Claim 5
Dependent Claim
51 words
A process as claimed in claim 2 in which the one or both R and R' groups independently have allylic hydroxyl, chloride, ether and/or ester substituent groups, or vinyl ester, nitrile and/or phenyl substituent groups with the proviso that electron-withdrawing substitutent groups are not substituted directly on the olefinic double bond.
Claim 6
Dependent Claim
45 words
A process as claimed in claim 2 which the olefinic compound comprises at least one compound selected from the group consisting of ethylene, propylene, butenes, pentenes, hexenes, octenes, decenes, cyclohexene, unsaturated glycerin esters, allyl chloride, styrene, 4-vinyl cyclohexene, methylene cyclohexane, allyl chloride, cyclopentadiene and butadiene.
Claim 7
Dependent Claim
29 words
A process as claimed in claim 5 in which the olefinic compound is selected from the group consisting of propylene, oct-1-ene, cyclohexene, styrene, 4-vinylcyclohexene, allyl chloride and methylene cyclohexane.
Claim 8
Dependent Claim
26 words
A process as claimed in claim 5 in which the peroxide is selected from the groups consisting of hydrogen peroxide, organic hydroperoxides, peroxide ethers and peracids.
Claim 9
Dependent Claim
27 words
A process as claimed in claim 1 in which the olefinic compound comprises propylene and the peroxide comprises tert-butyl hydroperoxide, optionally in the presence of tert-butyl alcohol.
Claim 10
Dependent Claim
32 words
A process as claimed in claim 1 in which the imidazole ligand is selected from the group consisting of unsubstituted imidazole, 2-pyridyl imidazole, benzimidazole, hydroxy-substituted imidazole, hydroxy-substituted benzimidazole and 5-benzimidazole carboxylic acid.
Claim 11
Dependent Claim
15 words
A process as claimed in claim 9 in which the support comprises an organic polymer.
Claim 12
Dependent Claim
14 words
A process as claimed in claim 10 in which the support comprises a polybenzimidazole.
Claim 13
Dependent Claim
13 words
A process as claimed in claim 11 in which the support comprises poly[2,2'(m-phenylene)-5,5'-benzimidazole].
Claim 14
Dependent Claim
18 words
A process as claimed in claim 10 in which the imidazole ligand is pendant to the polymer support.
Claim 15
Dependent Claim
25 words
A process as claimed in claim 13 in which the polymer support is selected from the group consisting of styrene polymers and glycidyl methacrylate polymers.
Claim 16
Dependent Claim
28 words
A process as claimed in claim 14 in which the imidazole ligand is selected from the group consisting of a imidazole, 2-pyridyl imidazole, benzimidazole and 5-benzimidazole carboxylic acid.
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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) | 1998-05-29 | 1998-11-28 | 1999-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-29 | 2002-11-28 | 2003-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-29 | 2006-11-28 | 2007-05-30 | $7700.00 | Window Closed / Lapsed |