| 摘要 |
CASE 3405 CONTINUOUS INTEGRATED PROCESS FOR PRODUCING DIMETHYL CARBONATE AND METHYL TERT-BUTYL ETHER. Dimethyl carbonate and methyl tert-butyl ether are prepared by a continuous integrated process comprising: a) feeding methanol, carbon monoxide and oxygen into a reaction environment maintained under methanol oxidative carbohylation conditions, to form a liquid reaction mixture containing dimethyl carbonate and unaltered methanol; b) at least partly eliminating the water from the reaction mixture of stage a); c) feeding the dehydrated mixture of stage b) and isobutene, or a hydrocarbon fraction containing isobutene, into a reaction environment maintained under etherification conditions, to form a liquid reaction mixture containing dimethyl carbonate and methyl tert-butyl ether; and d) recovering the dimethyl carbonate and methyl tert-butyl ether from the reaction mixture of stage c). |
