Oxeno Olefinchemie Gmbh

Evonik Oxeno Gmbh

Jochen Praefke

Armin Matthias Rix

Udo Peters

Franz Nierlich

Dirk Roettger

Wilfried Bueschken

Frank Hoeper

Markus Winterberg

Matthias Groemping

Wilhelm Droste

Bernhard Scholz

Andreas Beckmann

Wilfried Büschken

Dieter Reusch

Fritz Obenaus

Silvia Santiago Fernandez

Dirk Röttger

Rainer Malzkorn

Joachim Neumeister

Silvia Santiago-Fernandez

Richard Filipiak

Frank Höper

Joerg Leistner

Matthias Grömping

Jörg Leistner

Peter Kaßler

The invention relates to a process for preparing ETBE from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes, by reacting the isobutene present, distillatively removing a fraction comprising 1-butene and isobutene and again reacting the isobutene present therein to give ETBE.

Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons

The invention relates to a process for preparing 1-butene from technical mixtures which comprise at least 1-butene, isobutene, n-butane and 2-butenes by partial conversion of the isobutene present, distillative removal of a fraction comprising 1-butene and isobutene, and conversion of the isobutene present therein to tert-butyl ethers.

Process for preparing 1-butene from technical mixtures of C4 hydrocarbons

The invention relates to a process for preparing 1-butenic fractions having less than 2000 ppm of isobutene in relation to 1-butene from technical mixtures of Chydrocarbons I which contain at least 1-butene and 2000 ppmw to 8% by mass of isobutene based on the 1-butene, with or without n-butane, isobutane and/or 2-butenes.

Process for fine purification of 1-butenic streams

A process for preparing ethyl tert-butyl ether (ETBE) using low-water ethanol obtained by membrane dewatering at least two streams of relatively water-rich ethanol that have a different water content. by dewatering at membranes.

Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process

The invention relates to a process for preparing butene oligomers and tert-butyl ethers from Chydrocarbon streams, by converting the isobutene to butene oligomers and tert-butyl ethers and removing them from the Cstreams.

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A process for preparing low-water ethanol from at least two streams of relatively water-rich ethanol that have a different water content by dewatering at membranes. The low-water ethanol can be used to prepare ethyl tert-butyl ether (ETBE).

Process for dewatering ethanol

The invention relates to a process for preparing methyl tert-butyl ether (MTBE) in qualities which are suitable for organic syntheses and for use as a specialty solvent from MTBE in fuel quality.

Preparation of highly pure methyl tert-butyl ether

Growing community of inventors

Oer-Erkenschwick, Germany

Jochen Praefke