Hoechst Aktiengesellschaft

Gregor Deckers

Gerhardt Horn

Carl Dieter Frohning

Gerhard Diekhaus

Dieter Frohning

Horst B Horrig

Bernd Dorsch

Helmut Bahrmann

Peter Lappe

Ernst Wiebus

Thomas Muller

Peter Heymanns

Wolfgang Greb

Claus Kniep

Detlef Kampmann

Jurgen Szameitat

For the preparation of predominantly unbranched higher primary alcohols, olefins from the Fischer-Tropsch synthesis are reacted with hydrogen and carbon monoxide in the presence of water and a catalyst which is rhodium, in metallic form or as a compound, and a water-soluble phosphine. The reaction product obtained is hydrogenated. The water-soluble phosphines employed are compounds whose anion is a phosphine containing at least one sulfonated or carboxylated aromatic radical and whose cation is a quaternary ammonium or phosphonium ion.

Process for the preparation of predominantly unbranched higher primary

A process for hydrogenation of an aldehyde selected from the group consisting of propanal, n-butanal, and i-butanal comprising contacting said aldehyde with hydrogen in the presence of a hydrogenation catalyst comprising in the reduced state

Hydrogenation catalyst, a process for its preparation and use thereof

A copper oxide/zinc oxide/aluminum oxide catalyst which contains, per 100 parts of copper oxide, 40 to 130 parts zinc oxide, 2 to 50 parts aluminum oxide, and 1 to 4 parts soium oxide. It has a total BET surface area of 50 to 100 m.sup.2 /g, and 75% to 95% of the total surface area is made up by pores having radii of 9 to 1000 nm, and 5% to 25% of the total surface area is made up by pores having radii of less than 9 nm. The catalyst is useful for hydrogenation of various organic compounds.

Hydrogenation of aldehydes, ketones, carboxylic acids and esters

A hydrogenation catalyst comprising 25 to 50% by weight of nickel (metallic) 10 to 35% by weight of nickel oxide 4 to 12% by weight of magnesium oxide 1 to 5% by weight of sodium oxide the remainder being a water-insoluble support material,

Hydrogenation catalyst, a process for its preparation, and use thereof

A process for the preparation of amines by catalytic hydrogenation of nitriles in the presence of a nickel-containing support catalyst. The support catalyst contains Mg and Ni in coprecipitated form and in a molar ratio of 0.0075 to 0.075:1. There is 17 to 60 g of a water-insoluble support per mol of nickel, and 65% to 97% of the BET total surface area of the support catalyst is formed by pores having a radius r.sub.p .ltoreq.2.5 nm.

Process for the preparation of amines by catalytic hydrogenation of

A copper oxide/zinc oxide/aluminium oxide catalyst which contains, per 100 parts of copper oxide, 40 to 130 parts zinc oxide, 2 to 50 parts aluminium oxide, and 1 to 4 parts soium oxide. It has a total BET surface area of 50 to 100 m.sup.2 /g, and 75% to 95% of the total surface area is made up by pores having radii of 9 to 1000 nm, and 5% to 25% of the total surface area is made up by pores having radii of less than 9 nm. The catalyst is useful for hydrogenation of various organic compounds.

Copper catalysts

A process for separation of aliphatic straight-chain compounds having terminal functional groups from mixtures containing isomers thereof branched in the .alpha.-position by precipitating the aliphatic, straight-chain compounds as their clathrates.

Process for separating aliphatic straight-chain compounds having

A process for the preparation of 2-aminomethylpiperidine by catalytic hydrogenation of 2-cyanopyridine in the presence of a cobalt-containing catalyst at elevated temperature and under elevated pressure. The reaction can be carried out either in two steps or in a single stage.

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Xanten, Germany

Gregor Deckers