Process for dehydrating methanol to dimethyl ether
US11236032B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Aug 24, 2018 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Aug 24, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C43/043
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for dehydrating methanol to dimethyl ether using a Brønsted acid catalyst which is a 1-dimensional or a 3-dimensional aluminosilicate zeolite or a heteropolyacid, and a promoter of Formula I CnH(2n+1)CO2CH3 wherein n=1 to 11 or Formula II CmH2m(CO2CH3)2 wherein m=2 to 7 and the molar ratio of promoter to methanol is maintained at less than 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.