Basf Aktiengesellschaft

Basf Se Corporation

The Dow Chemical Company

Basf Akteingesellschaft

Dupont Safety & Construction, Inc.

Wintershall Holding Gmbh

Hartwig Voss

Ekkehard Schwab

Armin Diefenbacher

Thomas Bruecken

Stefan Bitterlich

Ingolf Voigt

Steffen Oehlenschlaeger

Ulrich Penzel

Wolfgang Mackenroth

Rocco Paciello

Edgar Zeller

J&uuml;rgen Decker

Dominic Vanoppen

Gunter Schuch

Hannes Richter

Martin Weber

Helmut Reichelt

Hartmut Hibst

Ulrich Müller

Joachim Paust

Konrad Knoll

Peter Bassler

Karl Kolter

Eckhard Stroefer

Hardo Siegel

Maximilian Angel

Rainer Dyllick-Brenzinger

Leopold Hupfer

Andreas Tenten

Kaspar Bott

Jens Scheidel

Dieter Hermeling

Walter Dobler

Michael Röper

Juergen Detering

Till Gerlach

Thomas Ostrowski

Sven Crone

Hubert Meixner

Hans-Georg Goebbel

Andreas Fischer

Petr Kubanek

Gerhard Bauer

Wolfgang Loth

Rainer Papp

Wolfgang Habermann

Stefan Maixner

Rolf Schneider

Michael Steiniger

Ursula Seeliger

Andreas Brodhagen

Achim Loeffler

Norbert Mahr

Heinz Hannebaum

Bram Willem Hoffer

Ulrich Steuerle

Samuel Neto

Ralf Boehling

Wolfgang Ahlers

Martin Sesing

Edoardo Menozzi

Hermann Petersen

Hermann Puetter

Thomas Mackewitz

Michael R&ouml;per

Ingo Klopp

Anna Forlin

Roland Baumstark

Klaus Lorenz

Friedhelm Balkenhohl

Christian Wulff

Michael Stoesser

Martin Karches

Joana Coelho Tsou

Reinhard Schneider

Olga Schubert

Lothar Seidemann

Rajan Hollmann

Nicole Janssen

Wolfgang F Mueller

Martin R&uuml;benacker

Bernhard Geissler

Heinrich Laib

Georg Krug

Steffen Oehlenschläger

Guenther Huber

Renate Patrascu

Gunter-Rudolf Schroeder

Frank Heimann

Andreas Weiper-Idelmann

Stefan Orsten

Martin Heijnen

Thomas Grassler

Henning Schultz

Frederik Van Laar

Werner Weppner

Julia Kristiane Schmidt

Jörg Therre

Jacek Malisz

Joachim-Thierry Anders

Process for making a membrane M comprising the following steps: a) preparing a copolymer C, wherein said copolymer C comprises blocks of at least one polyarylene ether A and blocks of polyalkylene oxide PAO, wherein the content of polyethyleneoxide in copolymer C is 30 to 90% by weight and wherein copolymer C is prepared in a solvent L to yield solution S; b) providing a dope solution D comprising at least one polymer P; c) mixing solution S and dope solution D; d) preparing a membrane by bringing the mixture of solution S and dope solution D into contact with at least one coagulating agent.

Process for making membranes

The present invention relates to a method of conditioning suspended catalysts, wherein at least part of the catalyst-comprising reaction medium is taken from one or more reactors and the suspended, at least partially inactivated catalysts are separated off and purified by means of at least one membrane filtration, with at least one of the membrane filtrations being carried out as a diafiltration.

Method for conditioning catalysts by means of membrane filtration

The invention relates to a process for working-up a reaction mixture () comprising polyetherol and dissolved alkali metal comprising catalyst, wherein at least alkali metal ions of the dissolved alkali metal comprising catalyst are partially or completely removed from the mixture by a membrane separation process, the process comprising following steps:

Process for working-up a reaction mixture comprising polyether polyol

A process for preparing tolylenediamine by hydrogenating dinitrotoluene with hydrogen in the presence of a suspended catalyst

Method for producing toluylenediamine by hydrogenating dinitrotoluene

The use of solutions of ethylenically unsaturated polyesters for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with a solution of ethylenically unsaturated polyester, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.

Process for producing carbon membranes

The use of solutions of organic polymers for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with solutions of organic polymers, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.

A process for the production of a composite membrane, one or more microporous separation layers comprising a zeolite of the MFI type being produced by hydrothermal synthesis on a porous substrate, wherein one or more additives from the group consisting of linear (C-C)-alcohols, ammonia, primary, secondary and tertiary amines having in each case (C-C)-alkyl radicals, (C-C)-aminoalcohols and (C-C)-ketones are added to the synthesis solution for the hydrothermal synthesis.

Process for producing a composite membrane

The present invention relates to a process for separating at least one propylene glycol from a mixture (M) comprising water and said propylene glycol, said process comprising (I) evaporating the mixture in at least two evaporation and/or distillation stages at decreasing operating pressures of the evaporators and/or distillation columns obtaining mixture (M') and mixture (M&#x2033;); (II) separating the mixture (M&#x2032;) obtained in (I) in at least one further distillation step, obtaining a mixture (M-I) comprising at least 70 wt.-% of water and a mixture (M-II) comprising less than 30 wt.-% of water.

Process for separating propylene glycol from aqueous compositions

A catalytic process for preparing chlorine from hydrogen chloride, which includes recycle of process streams with reduced accumulation of inert gases in the system is provided. The process includes a step wherein a compressed liquid stream comprising chlorine, carbon dioxide and oxygen is recycled into a column countercurrent to the ascending gas phase and feeding part of the chlorine-rich liquid phase leaving the bottom of the column back into the top of the column. Carbon dioxide present in the ascending gas stream is dissolved out of the gas stream and can later be separated from chlorine without problems by distillation.

Method for producing chlorine

A process for preparing polyether polyols by reaction of the following starting materials:

Method for producing polyether polyols

The invention relates to a process for the preparation of sodium dithionite, comprising the steps

Method for producing sodium dithionite

A process for producing a liquid formulation of salts of sulfonated azo dyes by coupling an at least equimolar amount of diazotized aminoarylsulfonic acids IHN&#x2014;Ar&#x2014;SOH&#x2003;&#x2003;(I),where Ar is phenylene (which may be monosubstituted by sulfo) or naphthylene (which may be mono- or disubstituted by sulfo and/or monosubstituted by hydroxyl) onto the coupling product of an unsubstituted or methyl-substituted phenylenediamine with itself comprises dissolving the azo dye in a basic medium and then subjecting the solution to a nanofiltration.

Method for producing a liquid formulation of salts of sulphonic-acid azo dyes

The invention relates to a process for preparing aromatic amines by hydrogenation of nitroaromatics in the presence of catalysts, in which a fluid reaction mixture which comprises amines and from which the catalysts are separated off is formed in a reactor. After the catalysts have been separated off, a measurement of the absorption of UV/VIS radiation by the reaction mixture is carried out to determine the concentration of nitro and nitroso compounds in the reaction mixture.

Method for producing aromatic amines or aliphatic amino alcohols

The present invention provides a process for hydrogenating aromatic nitro compounds to the corresponding amines in the presence of hydrogenation catalysts, which comprises using hydrogenation catalysts in which nickel and platinum are present on a support in the form of an alloy having an atomic ratio of nickel to platinum in the alloy of between 30:70 and 70:30.

Method for the production of amines

Process for the work-up of naphtha, wherein

Method for processing naphtha

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Frankenthal, Germany

Hartwig Voss