Patent ID: 7932428
Filing Date: 2011-04-26
Classification: C07C,Y02P

Abstract:
1. A process for preparing 1-butene from a technical mixture of C 4 hydrocarbons I, wherein the technical mixture of C 4 hydrocarbons comprise at least 1-butene, isobutene, n-butane and cis and trans 2-butenes, comprising a) reacting a portion of the isobutene present in the technical mixture to give at least one product II which boils at higher than 30° C. at standard pressure, and unconverted C b) removing the unconverted C c) distillatively separating the C d) reacting the isobutene present in fraction IV with at least one alcohol VI in the presence of at least one acidic catalyst to give at least one tert-butyl ether VII, and unconverted C e) removing the unconverted C f) distillatively removing the 1-butene from the C