Apparatus for preparing a dialkyl carbonate
US7462336B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jun 27, 2005 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C68/01
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An apparatus for preparing a dialkyl carbonate comprises means for reacting an alkanol, oxygen, carbon monoxide, and a catalyst to form a mixture comprising a dialkyl carbonate, an alkyl chloroformate, hydrochloric acid, water, carbon dioxide, and carbon monoxide; means for separating from the mixture a gaseous fraction comprising carbon monoxide and alkyl chloroformate; and means for removing alkyl chloroformate from the gaseous fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.