发明名称 |
VERFAHREN ZUR SPALTUNG VON METHYL-TERTIÄR- BUTYLETHER |
摘要 |
In the catalytic cracking of methyl-tert. butyl ether (MTBE), the cracked product (II) is distilled to give an isobutene (IB) head stream (III) and a sump stream (IV) of diisobutene, MTBE and methanol. (IV) is distilled to give a sump stream (V) of methanol; a side stream (VI) of diisobutene, methanol and MTBE; and a head stream (VII) of MTBE and methanol, which is recycled to the cracking stage. A method for cracking methyl-tert. butyl ether (MTBE) involves: (a) cracking MTBE, contained in two streams (I) and (II), over a catalyst; (b) distilling the product (II) to give a head stream (III) containing more than 90 wt. % isobutene (IB) and a sump stream (IV) containing diisobutene, MTBE and more than 80% of the methanol contained in (II); (c) distilling (IV) to give a sump stream (V) containing methanol, a side stream (VI) containing diisobutene, methanol and MTBE and a head stream (VII) containing MTBE and methanol; and (d) recycling (VII) to stage (a). |
申请公布号 |
AT528273(T) |
申请公布日期 |
2011.10.15 |
申请号 |
AT20070112261T |
申请日期 |
2007.07.11 |
申请人 |
EVONIK OXENO GMBH |
发明人 |
WINTERBERG, MARKUS;NIERLICH, FRANZ;SANTIAGO FERNANDEZ, SILVIA;LUH, WALTER;HOUBRECHTS, STEPHAN;MASCHMEYER, DIETRICH;ZANTHOFF, HORST-WERNER;BUESCHKEN, WILFRIED |
分类号 |
C07C1/20;C07C11/09 |
主分类号 |
C07C1/20 |
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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