| 摘要 |
PURPOSE:To obtain the subject compound useful as a methylation agent, etc., from methanol, carbon monoxide and oxygen in high catalytic activity and efficiency and improved selectivity of carbon monoxide by using a catalyst consisting of a platinum-group compound, a copper salt and a basic complex of magnesium. CONSTITUTION:Dimethyl carbonate is produced by reacting methanol with carbon monoxide and oxygen in the presence of a catalyst consisting of a platinum-group compound (especially preferably palladium), a copper salt (e.g. cuprous chloride) and a basic complex of magnesium (prepared in the form of a methanol solution by calcining magnesium carbonate and reacting the obtained magnesium oxide with methanol and CO2 in an autoclave). The combustion loss of methanol and carbon monoxide can be decreased. Dimethyl carbonate is useful as a production intermediate for polyurethane and polycarbonate and a substitute for extremely poisonous phosgene. |
