US4476327A
Expired / Lapsed
US
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Process for the synthesis of glycol monomethylethers
Assignee: ENICHEM SYNTHESIS SpA AN ITALIAN Co
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Filing: 1983-07-14
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Granted: 1984-10-09
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Expires: 2003-07-14
Abstract
Abstract A process for the synthesis of glycol monomethylethers consisting of reacting an olefin compound, methanol and hydrogen peroxide in aqueous solution in the presence of synthetic zeolites containing titanium atoms, of general formula: xTiO2.(1-x)SiO2, where x lies between 0.0001 and 0.04.
Inventors
- 👤 Carlo Neri
- 👤 Franco Buonomo
- 👤 Bartolomeo Anfossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/89; C; C07; C07C; C07C41/00; C07C41/01; C07C41/05
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
43 words
A process for the synthesis of glycol monomethyl ethers, characterised by reacting together an olefin compound, methanol and hydrogen peroxide in aqueous solution, in the presence of synthetic zeolites containing titanium atoms, of general formula: xTiO.sub.2.(1-x)SiO.sub.2 where x lies between 0.0001 and 0.04.
Claim 2
Dependent Claim
43 words
A process for the synthesis of glycol monomethyl ethers, characterised by reacting together an olefin compound, methanol and hydrogen peroxide in aqueous solution, in the presence of synthetic zeolites containing titanium atoms, of general formula: xTiO.sub.2.(1-x)SiO.sub.2 where x lies between 0.0001 and 0.04.
Claim 3
Dependent Claim
24 words
A process as claimed in claim 1, characterised in that the reaction is carried out at a temperature of between 50° and 150° C.
Claim 4
Dependent Claim
16 words
A process as claimed in claim 1, wherein the hydrogen peroxide is in dilute aqueous solution.
Claim 5
Dependent Claim
21 words
A process as claimed in claim 1, wherein the hydrogen peroxide in the aqueous solution is between 10 and 70% w/v.
Claim 6
Dependent Claim
23 words
A process as claimed in claim 1, wherein the olefin compound is chosen from ethylene, propylene, butene-1, cis butene-2, trans butene-2 and isobutene.
References Cited (Backward Citations)
US2808442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |