| US 7,399,404 B2 | ||
| Reduction of the content of compounds containing oxygen and/or nitrogen in material flows containing isobutene | ||
| Thomas Wettling, Limburgerhof (Germany); and Dirk Borchers, Ludwigshafen (Germany) | ||
| Assigned to BASF Aktiensegellschaft, Ludwigshafen (Germany) | ||
| Appl. No. 10/556,091 PCT Filed May 14, 2004, PCT No. PCT/EP2004/005200 § 371(c)(1), (2), (4) Date Nov. 09, 2005, PCT Pub. No. WO2004/101477, PCT Pub. Date Nov. 25, 2004. |
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| Claims priority of application No. 103 22 153 (DE), filed on May 16, 2003. | ||
| Prior Publication US 2007/0106107 A1, May 10, 2007 | ||
| Int. Cl. C07C 7/12 (2006.01) | ||
| U.S. Cl. 208—254R [208/263; 585/820; 585/824] | 10 Claims |
| 1. A process for reducing the content of oxygen-containing and/or nitrogen-containing compounds in streams comprising:
passing a stream having an isobutene content of at least 10% by weight, in the liquid state at a temperature T [in K] and
a linear velocity v [in cm/min] over a fixed bed of an acid-free zeolite having a mean pore size from 0.3 to 1.5 nm,
wherein the fixed bed has a length 1 [in cm] in a flow direction of a stream and T, v, and 1 obey the relationship
2(T−283 K)/10 K·I/v≤500 min.
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