Lanxess Deutschland Gmbh

Saltigo Gmbh

Saitigo Gmbh

Waldemar Czaplik

Jurgen Kischkewitz

Matthias Gotta

Wolfgang Oehlert

Jürgen Kischkewitz

Udo Holtmann

Juergen Kischkewitz

Bernd Wilhelm Lehnemann

Guido Ketteler

Mark Sundermeier

Matthias Mayer

Axel Jacobi Von Wangelin

Huajun Li

Stephan Spiegelhauer

Birgit Blankemeyer-Menge

Alfred Bardoun

Birgit Blankenmeyer-Menge

Herr Udo Holtmann

The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process) and apparatuses for carrying out the process.

Preparation of red iron oxide pigment

The present invention relates to iron oxide red pigments having improved color values, a process for producing these improved iron oxide red pigments by the Penniman red process using nitrate (also referred to as nitrate process or direct red process) and an apparatus for the production thereof.

Red iron-oxide pigments with improved colour values

The present invention relates to an improved process for producing iron oxide red pigments by the Penniman process using nitrate (also referred to as nitrate process or direct red process).

Preparation of iron (III) oxide pigment

The present invention relates to an improved process for producing red iron oxide pigments by the Penniman process with nitrate (also called nitrate process or direct red process) and to apparatus for implementing this process, and also to the use of the plant for producing red iron oxide pigments by the Penniman process with nitrate.

Production of red iron oxide pigment

What is described is a process for preparing organic compounds of the general formula (I)R&#x2014;R'&#x2003;&#x2003;(I)by converting a corresponding compound of the general formula (II)R&#x2014;X&#x2003;&#x2003;(II)in which characterized in that the reaction of (III) with (IV) is performed in the presence of

Method for allylating and vinylating aryl, heteroaryl, alkyl, and alkene halogenides using transition metal catalysis

This invention relates to a process for preparing functionalized aryl, heteroaryl, cycloalkenyl, or alkenyl compounds, by a transition-metal-catalyzed cross-coupling reaction of a substituted or unsubstituted aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide, where X is a halide, diazonium, tosylate (p-toluenesulphonate), mesylate (methanesulphonate) or triflate (trifluoromethanesulphonate) leaving group.

Process for preparing organic compounds by a transition metal-catalysed cross-coupling reaction of an aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide

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Waldemar Czaplik