Basf Se Corporation

Basf Aktiengesellschaft

Other

Gerhard Theis

Jochem Henkelmann

Frans Vansant

Peter Wahl

Oliver Bey

Stephan Maurer

Jochen Steiner

Roman Prochazka

Heiko Urtel

Frank Rosowski

Hans Hasse

Torsten Mäurer

Bernd Bessling

Till Adrian

Michael Becker

Frank Heimann

Winfried Terjung

Dieter K&ouml;ffer

Jozef De Hert

Rolf Pinkos

Terry Joseph Mazanec

Eckhard Stroefer

Robert Baumann

Laura J Silva

Michael Bock

Soumitra R Deshmukh

Georg Seeber

Axel Franzke

Tobias Rosendahl

Radwan Abdallah

Robin Thiele

Alexander Duefert

Jochen Bürkle

Jochen Buerkle

Philipp Brueggemann

Michael Reiser

Petra Maier

Georg Mehrl

Stephen Maurer

Thomas Borren

Jörg Schlecht

Philipp Brüggemann

Dieter Köffer

Process for preparing monoethylene glycol (MEG) by metal-catalyzed reaction of a dialkyl oxalate of the formula I where Rand Rare each, independently of one another, methyl, ethyl, n-propyl or isopropyl, with hydrogen (H), wherein the dialkyl oxalate (I) is used as melt or as a solution in a solvent, dialkyl oxalate (I) and Hare used in a molar ratio of H:dialkyl oxalate (I) in the range from 4.0 to 30 and the reaction is carried out continuously in a reactor at a cross-sectional loading of &#x2265;10 m/s, a temperature in the range from 150 to 270&#xb0; C., a pressure in the range from 150 to 390 bar and in the presence of a chromium-free heterogeneous catalyst comprising copper.

Method for producing monoethylene glycol

The present invention relates to a process for preparing deodorized 1,2-propanediol, to the use of the purified propanediol and to an apparatus for performing the process.

Process for preparing deodorized 1,2-propanediol

A process for coproducing di- and/or polyisocyanates and glycols, comprising process stages A, B, C and E for preparing glycols and process stages A, C, D, E, F and G for preparing di- and/or polyisocyanates, which comprises 

Process for coproducing di- and/or polyisocyanates and glycols

This invention relates to a process, comprising reacting ethylene and oxygen or a source of oxygen in the presence of a catalyst in a reactor to form a product comprising ethylene oxide, wherein the catalyst contains silver or silver compound and a support and the catalyst is in the form of particulate solids having a mean particle diameter from 1 to 1000 &#x3bc;m and wherein the molar ratio of oxygen to ethylene is from 1:4 to 10:1.

Process for making ethylene oxide

A process for removing carbon dioxide (CO) by means of an absorption medium from a cycle gas system, wherein the COoccurs within a process in which, in the gas phase, ethylene is oxidized by oxygen (O) to ethylene oxide (EO) in the presence of a catalyst, in which, as by product, COis generated, by using as absorption medium an aqueous solution of one or more amines, wherein, for further purification of the cycle gas stream obtained downstream of the COabsorption step, this cycle gas stream is brought into intimate contact with water to which no mineral acid and no higher glycol was added.

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Method for producing deodorized 1,2-propanediol

A process for heat integration in engineering processes is provided in which, in a heat carrier circuit, a heat carrier medium takes up heat from a first process stream in a first heat exchanger and releases it to a refrigeration system. In a refrigerant circuit, a refrigerant is cooled in the refrigeration system and the refrigerant takes up heat from a second process stream in a second heat exchanger or a second process stream is cooled in the refrigeration system. The first process stream is a vapor stream from a thermal separation apparatus, and the temperature of the heat carrier medium is increased by heat supply between egress from the first heat exchanger and ingress into the refrigeration system.

Process for heat integration by means of a refrigeration system

The present invention relates to a process for preparing ethylene oxide by reaction of ethylene with oxygen in the presence of at least one silver-comprising catalyst, wherein the reaction takes place in a reactor which has a catalyst packed bed having at least two zones (i) and (ii) and the silver content of the catalyst in zone (i) is lower than the silver content of the catalyst in zone (ii). The catalyst packed bed preferably has a further zone (a) with which the reaction mixture comes into contact before the zones (i) and (ii). According to the invention, the silver content of the catalyst in the zone (a) is higher than the silver content of the catalyst in zone (i).

Use of structured catalyst beds for preparing ethylene oxide

The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a hydrogenation in an at least three-stage reactor cascade.

Method for producing 1,2-propandiol by hydrogenation in at least three successive reactors

The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a low pressure hydrogenation.

Method for producing 1,2-propandiol by low-pressure hydrogenation of glycerine

The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a hydrogenation in a two-stage reactor cascade.

Method for producing 1,2-propandiol by hydrogenating glycerine in a two-step reactor cascade

The present invention relates to a process for the preparation of 1,2-propanediol, in which a glycerol-containing stream, in particular a stream obtained on an industrial scale in the production of biodiesel, is subjected to a hydrogenation.

Process for the preparation of 1,2-propanediol

A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.

Method for producing highly pure monoethylene glycol

A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis product of ethylene oxide by pressure dewatering, vacuum dewatering and subsequent purifying distillation, which includes the pressure dewatering columns or at least the first pressure dewatering column of the battery ( ) having a stripping section with at least one separating stage, preferably with from 2 to 10 separating stages, particularly preferably with from 3 to 6 stages, and a portion of the overhead stream of the pressure dewatering column(s) ( ) having a stripping section being removed from the system.

Cleaning apparatus for removing residues

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Maxdorf, Germany

Gerhard Theis