Translation of "Heterogene katalyse" in English

For heterogeneous catalysis, in particular noble metal catalysts, predominantly palladium catalysts, are used.

A distinction is drawn between homogeneous and heterogeneous catalysis:

We are a leading supplier of materials for heterogeneous and homogeneous catalysis.

Heterogeneous catalysis plays a central role in the modern chemical industry.

The process constitutes a heterogeneous catalysis.

His special competence, heterogeneous catalysis, was the subject of his doctoral research.

The macroporous resins in particular can be used with particular advantage for heterogeneous catalysis in the liquid phase.

In place of aluminum isopropoxide, the process involves a heterogeneous catalysis with magnesium oxide and isopropanol as solvent.

He concentrated on specific heat at very low temperatures, the structure of liquids and electrolytic solutions, the molecular physics (rotation, oscillation), on deuterium and heavy water, on homogeneous and heterogeneous gas kinetics, catalysis, chemical engineering and chemical technology.

An insoluble biocatalyst is one which is suitable for heterogeneous catalysis, i.e. one which, because of its insolubility in the reaction medium (which as a rule is aqueous), its particle size and its sufficiently compact nature, can be readily filtered or separated off from the reaction medium in another manner.

One object of the present invention was to provide further catalysts for the heterogeneous catalysis which would be readily accessible and, like the special ion exchangers mentioned above, would enable 2-alkenals, particularly acrolein, to be hydrated with high selectivity.

Furthermore, the heterogeneous solid catalysts also may be used in the form of a moving mass, for example in the form of a moving bed or fluidized bed, as long as the reliable separation of the solid catalyst from the liquid phase reaction mixture by a subsequent separation step is guaranteed.

Since homogeneous catalysis causes problems regarding environmental protection and corrosion, heterogeneous catalysis with acidic ion exchangers, especially with resins of the sulfonated, divinylbenzene-crosslinked polystryrene type, is preferred.

An insoluble biocatalyst is one which is suitable for heterogeneous catalysis, i.e. one which, because of its insolubility in the reaction medium (which as a rule is aqueous), its particle size and its sufficiently compact nature, can be readily filtered or separated off from the reaction medium in another manner.

The acid-activated clays (smectitic layered silicates) are capable of absorbing the dyes and developing them in heterogeneous catalysis, because of their high specific surface areas of about 300 m 2 /g.

The COCs are prepared by heterogeneous or homogeneous catalysis with organometallic compounds, as described in a wide variety of documents.

In this reaction the isotope exchange between molecules of the vaporized liquid substance (V) and molecules of the gaseous substance (G) takes place through a heterogeneous catalysis.

The cycloolefin copolymers (COCs) are prepared by heterogeneous or homogeneous catalysis with organometallic compounds, as described in a wide variety of documents.

The crude aromatic carbonate obtained by heterogeneous catalysis is frequently very pure and may even be used in this form for many purposes, after degassing residual hydrogen chloride or other volatile substances.

The preparation of the cycloolefin polymers is carried out by heterogeneous or homogeneous catalysis by means of organometallic compounds and is described in a multiplicity of documents.

It makes no difference here whether the catalysts are present in the same phase as the reaction solution (homogeneous catalysis) or are present as solids (heterogeneous catalysis) and isolated after completion of the reaction.

As a result of the heterogeneous catalysis, the reaction products can easily be separated from the catalyst, whereby a continuous process procedure is possible.

If aluminum oxide or aluminum oxide hydrates are used as the catalyst, the catalyst concentration is important only with respect to the catalyst surface required for heterogeneous catalysis.

Ferdi Schüth is Director at the Max Planck Institute for Coal Research in Mülheim an der Ruhr and head of the Heterogeneous Catalysis working group.

In chemical industry, heterogeneous catalysis is of crucial iportance to the manufacture of basic or fine chemicals, in catalytic converters of exhaust gas, or for the chemical storage of solar energy.

The Chair of Heterogenous Catalysis and Technical Chemistry is a model of family and career compatibility, according to its employees.

From 2001 to 2004 he worked as a Senior Scientist in the field of electronic materials and heterogeneous catalysis at Symyx Technologies in Santa Clara/USA.