发明名称 |
ISOBUTYLENE-ASSISTED AQUEOUS EXTRACTION OF METHANOL FROM METHYL TERTIARY BUTYL ETHER |
摘要 |
ISOBUTYLENE-ASSISTED AQUEOUS EXTRACTION OF METHANOL FROM METHYL TERTIARY BUTYL ETHER (Docket No. 81,148-F) An impure methyl tertiary butyl ether product contaminated with isobutylene, methanol and water is purified by continuous counter-current contact with water and an isobutylene fraction in an extraction zone comprising a countercurrent contact tower to provide an overhead raffinate comprising isobutylene, methyl tertiary butyl ether and a minor amount of water and an extract comprising methanol, water and a minor amount of methyl tertiary butyl ether; the overhead raffinate being separated in a methyl tertiary butyl ether purification distillation zone into a lighter distillation fraction comprising isobutylene and water and a heavier distillation fraction consisting essentially of methyl tertiary butyl ether; the lighter distillation fraction being decanted to remove water and to provide a distillate isobutylene fraction that is returned to the contact tower as the isobutylene fraction. |
申请公布号 |
CA2135141(A1) |
申请公布日期 |
1995.05.06 |
申请号 |
CA19942135141 |
申请日期 |
1994.11.04 |
申请人 |
TEXACO DEVELOPMENT CORPORATION |
发明人 |
PETERS, MICHAEL W.;SHEU, YU-HWA E. |
分类号 |
C07C41/09;C07C41/38;C07C41/42;C07C43/04;(IPC1-7):C07C43/04;C07C41/01 |
主分类号 |
C07C41/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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