Evonik Degussa Gmbh

Evonik Operations Gmbh

Degussa Aktiengesellschaft

Degussa Gmbh

The Procter Gamble Company

Evonik Industries Ag

Evonik Treibacher Gmbh

Harald Jakob

Ulrike Kottke

Benjamin Fonfe

Klaus Huthmacher

Hans Joachim Hasselbach

Martin Koerfer

Ralph Overdick

Christoph Weckbecker

Stefan Leininger

Sebastian Fuss

Stefan Reichert

Herbert Klenk

Hans-Jürgen Köhle

Bernd Drapal

Hans-Juergen Koehle

Rainer Peter

Christian Kaiser

Waldemar Hessberger

Klaus Zimmermann

Andreas Doerflein

Stephan Rautenberg

Martin Körfer

Judith Hierold

Juergen Lattich

Lucas Geist

Horst Krull

Nadine Duerr

Daniel Fischer

Martin Steffan

Sebastian Bernhardt

Chuanhua He

Sascha Ceylan

Axel Kleemann

Kevin Lee Kott

Renae Dianna Fossum

Wolfgang Lortz

Arne Skerra

Hans Henning Wenk

Todd L Kurth

Hugo Jean Marie Demeyere

Peter Werle

Cornelia Borgmann

Georg Borchers

Hans-Jurgen Kohle

Peter Schwab

Birgit Bertsch-Frank

Patrik Stenner

Stephan Kretz

Martin Trageser

Jörg Peggau

Hans-Joachim Hasselbach

Michael Fender

Christian Rabe

Philipp Roth

Chiu Kee Cheung

Christian Mund

Thomas Haeussner

Jürgen Bilz

Lothar Kaiser

Georg Schick

Rene Haensel

Thorsten Merker

Joerg Peggau

Achim Fischer

Oswald Helmling

Ingo Hamann

Winfried Heimbeck

Anja Nordschild

Christian Reus

Gunes Giray

Frank Fischer

Axel Euler

Jignesh Gangadwala

Markus Held

Jens P Hildebrand

Rainer Malzkorn

Jose Andres Rojo Moreno

Andrea Kopp

Karsten Portner

Dominik Egly

Xiangyu Yang

Frank Wilz

Benny Hartono

Jürgen Lattich

Michael Scheibe

Matthias Schöppner

Saji John Meledathu

Julia Martin

Delbert G Young

Silke Stoschek

Axel Mescher

Bernd Hopf

Claudia Parys

Daniel Rost

Helmut Mueller

Matthias Schoppner

Kerstin Kugel

Jens Hildebrand

Matthias Schoeppner

The invention refers to the use of a particulate catalyst containing 60.0 to 99.5 wt. % ZrOstabilised with an oxide of the element Hf and at least one oxide of the element M, wherein M=Ce, Si, Ti, or Y, for the hydrolysis reaction of methionine amide to methionine, wherein the median particle size xof the particulate catalyst is in the range of from 0.8 to 9.0 mm, preferably of from 1.0 to 7.0 mm. The invention also refers to a process for preparing methionine comprising a step of contacting a solution or suspension comprising methionine amide and water with said particulate catalyst to provide a reaction mixture comprising methionine and/or its ammonium salt from which methionine can be isolated.

Salt-free production of methionine from methionine nitrile

A composition for feeding a ruminant, including i) a core including a biologically active ingredient selected from i) amino acids, ii) proteins, iii) peptides, iv) carbohydrates, v) vitamins, vi) probiotic microorganisms, vii) prebiotic foods, viii) choline and salts, and ix) polyunsaturated fatty acids (PUFAs); and ii) a coating surrounding said core. The coating includes one or more layers of a mixture including from 60 wt %+/−10% to 80 wt %+/−10% of a saturated fat and from 20 wt %+/−10% to 40 wt %+/−10% of a fatty acid, each based on the total weight of the coating. The composition includes from 5 wt %+/−10% to 30 wt %+/−10% of the coating, based on the total weight of the composition.

Rumen protected products

The present invention relates to a method for preparing 3-methylthiopropionaldehyde by reacting methyl mercaptan with acrolein, in which deviations in the stoichiometry of methyl mercaptan to acrolein in the reaction to give 3-methylthiopropionaldehyde are compensated for by supplying or by forming 1,3-bis(methylthio)-1-propanol, and also to the use of 1,3-bis(methylthio)-1-propanol as a storage form of methyl mercaptan and/or 3-methylthiopropionaldehyde.

Method for preparing 3-methylthiopropionaldehyde

The present invention relates to a process for producing mixed oxide catalysts on the basis of molybdenum and bismuth oxides in which the precursor compounds of the components of mixed oxide catalysts provided in the form of a solution and/or suspension are subjected to a spray-drying with a specific temperature regime and the spray particles obtained in this way are then calcined to yield a catalytic active mass, and to the mixed oxide catalysts obtainable by this process and to the use of these catalysts in the partial oxidation of olefins, in particular in the partial gas phase oxidation of propene to acrolein and acrylic acid. The spray drying of the precursor compounds containing solution or suspension is performed in concurrent with a gas stream having a specific entrance temperature. Alternatively, when the main gas stream has a higher entrance temperature, an additional colder gas stream can be fed in downstream. The thus obtained mixed oxide catalysts give lower a maximum temperature in the hot spot of catalyst fixed bed when they are used in the partial gas phase oxidation of olefins.

Method for preparing mixed metal oxide catalysts containing molybdenum and bismuth

A process for preparing methionine includes the alkaline hydrolysis of 5-(2-methylmercaptoethyl)-hydantoin (methionine hydantoin) in an aqueous process solution containing alkali metal hydroxide and/or alkali metal carbonate and/or alkali metal hydrogencarbonate. The alkali metal cations in the process solution are potassium and sodium having a K/Na molar ratio range from 99/1 to 20/80.

Process for preparing methionine

The invention relates to an enzymatic method for producing 2-hydroxy-4-methylmercaptobutanoic acid from 3-methylthio-propanal (3-methylmercaptopropanal (MMP) or 'methional') and carbon dioxide.

Enzymatic method for producing 2-hydroxy-4-methylmercaptobutanoic acid (MHA)

A process is used for preparing methionine. Specifically, the process includes the hydrolysis of 5-(2-methylmercaptoethyl)hydantoin (methionine hydantoin) in an alkaline process solution. Further, the by-products that include formate and other anions of organic acids containing 1 to 5 carbon atoms are removed by electrodialysis of the process solution.

The present invention relates to a process for producing a particulate composition containing methionine, methionylmethionine, potassium in the form of potassium salt and ammonium sulfate, and use thereof.

Production method for dipeptide-containing granules

A compound, which is 1-(1,3-bis(methylthio)propoxy)-3-(methylthio)propan-1-ol, a composition containing the compound, a method for the preparation thereof, a method for preparing 3-methylthiopropionaldehyde by reacting 1-(1,3-bis(methylthio)propoxy)-3-(methylthio)propan-1-ol with acrolein, and also to the use of 1-(1,3-bis(methylthio)propoxy)-3-(methylthio)propan-1-ol or compositions containing the compound for the storage and/or transport of 3-methylthiopropionaldehyde and/or methyl mercaptan.

Storage of 3-methylthiopropionaldehyde and methyl mercaptan

A method for determining dimethyl disulphide proceeds by carrying out a chromatographic separation of an analyte containing at least dimethyl disulphide and methanesulphonic acid, and determining the dimethyl disulphide by pulsed amperometric detection.

Method for determining dimethyl disulphide

The present invention relates to a process for preparing alkanesulphonic acid by oxidizing an alkyl mercaptan, a dialkyl disulphide and/or a dialkyl polysulphide having three to nine sulphur atoms with an oxidizing agent, wherein additional oxidizing agent is fed into the oxidation if as yet unoxidized alkyl mercaptan and/or unoxidized dialkyl disulphide and/or at least one intermediate from the oxidation of the dialkyl disulphide and/or of the dialkyl polysulphide is present in the reaction output, and a corresponding apparatus for performance of oxidation reactions.

Process for preparing an alkanesulphonic acid

The present invention relates to a catalyst for oxidation reactions, particularly for oxidation of mercaptan dialkyldisulfides and/or dialklypolysulfides with oxygen to alkanesulfonic acids.

Catalyst for oxidation reactions, a method for its preparation and the use thereof

The present invention relates to a process for preparing alkanesulfonic acids from dialkyl disulfides with nitric acid and oxygen.

Process for preparing alkanesulfonic acids

The present invention relates to a process for preparing acrolein from propylene by catalytic gas phase oxidation with molecular oxygen (for example air). The invention further relates to the use of particular propylene-containing starting materials, for example refinery grade propylene, for preparation of acrolein.

Method for producing acrolein

An alkyl mercaptan is prepared by reacting an aliphatic alcohol with hydrogen sulfide in the presence of a heterogeneous catalyst at varying temperatures.

Process for the preparation of alkyl mercaptans

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Hasselroth, Germany

Harald Jakob