Basf Aktiengesellschaft

Thomas Ruhl

Jochem Henkelmann

Marc Heider

Boris Breitscheidel

Hans-Joachim Muller

Bernd Wenderoth

Roger G Klimesch

Andreas Henne

Thomas Preiss

Wolfgang Reif

Heinz Rutter

Bernd Lothar Marczinke

Thomas Wettling

Dieter Littmann

Knut Oppenlander

Sabine Weiguny

Michael Karcher

Susanne Stutz

Albin Berger

Dieter Hannu Boeckh

Walter Denzinger

Richard Baur

Andreas Deckers

Hans Peter Rath

Helmut Mach

Volker Schwendemann

Alexander Kud

Klemens Flick

Harald Rust

Harald Schwahn

Arthur Hohn

Axel Kistenmacher

Herbert Helfert

Ralf-Thomas Rahn

Joachim Wulff-Doring

Angelika Funhoff

Franz Josef Brocker

Martin Schmidt-Radde

Peter Hofmann

Helmuth Menig

Rolf Lebkucher

Uwe Diehlmann

Martin Schafer

Karl Heinz Brauch

Bernd Fiechter

An activated fixed-bed Raney metal catalyst which is free of metal powder, has macropores and is based on an alloy of aluminum and at least one metal of subgroup VIII of the Periodic Table, contains more than 80% by volume, based on the total pores, of macropores and is used for the hydrogenation of low molecular weight and polymeric organic compounds.

Fixed-bed Raney metal catalyst, its preparation and the hydrogenation of

Copolymer comprising ethylene units and vinyl formate units, the content of free vinyl formate in the polymer preferably being not more than 5000 ppm, based on the weight of the copolymer, a process for its preparation, and its use as flow improver, especially in petroleum distillates, preferably fuel and propellant compositions, especially petroleum middle distillates, and also a fuel and propellant composition comprising a principal quantity of a fuel and propellant and that quantity of a copolymer as above which is effective in improving the flow properties.

Ethylene-vinyl formate copolymers, process for their preparation, their

Reaction products of polyolefins having predominantly a terminal double bond and a number average molecular weight of from 250 to 10,000, which possess an aliphatic hydrocarbon skeleton which is straight-chain or carries C.sub.1 -C.sub.4 -alkyl side chains, with from 1 to 10 mol, per equivalent of double bond, of one or more vinyl esters I ##STR1## are obtainable by reacting the stated polyolefins with the vinyl esters I in the presence of a free radical initiator at from 80 to 200.degree. C., it being possible for these reaction products subsequently to have been hydrolyzed to the corresponding alcohols or converted into the corresponding amines by reductive amination with amines II ##STR2## .

Reaction products of polyolefins with vinyl esters and their use as fuel

Butyrolactone-preparation process

A process for hydrogenating aromatic compounds in which at least one hydroxyl group is bonded to an aromatic ring comprises bringing at least one of these compounds into contact with free hydrogen in the presence of a catalyst, wherein the catalyst comprises ruthenium and, if desired, at least one metal of transition groups I, VII and VIII in an amount of from 0.01 to 30% by weight, preferably from 0.2 to 15% by weight, based on the total weight of the catalyst, applied to a support, where the support has a mean pore diameter of at least 0.1 .mu.m, preferably at least 0.5 .mu.m, and a surface area of at most 15 m.sup.2 /g, preferably at most 10 m.sup.2 /g.

Hydrogenation of aromatic compounds in which at least one hydroxyl group

A process for the hydrogenation of an aromatic compound, in which at least one hydroxyl group is attached to an aromatic core, or an aromatic compound, in which at least one amino group is attached to an aromatic core, in the presence of a catalyst containing, as active metal, ruthenium and optionally one or more other Group IB, VIIB, or VIIIB metals, applied to a macroporous support.

Process for reacting an organic compound in the presence of a supported

A process for reacting an organic compound in the presence of a catalyst, wherein the catalyst comprises a homogeneous ruthenium compound or a mixture of two or more thereof deposited in situ on a support.

Process for reacting an organic compound in the presence of a ruthenium

In a process for hydrogenating an aromatic compound in which at least one hydroxyl group is bonded to an aromatic ring or an aromatic compound in which at least one amino group is bonded to an aromatic ring, in the presence of a catalyst comprising as catalytically active component at least one metal of transition group I, VII or VIII of the Periodic Table applied to a support, the catalyst is obtainable by

Hydrogenation of an aromatic compound in the presence of a supported

N-Hydroxyalkyl-substituted aminoalkynes of the formula I ##STR1## are prepared by reacting an alkyne with a 1-oxa-3-azaheterocyclo-alkane in a reaction with heterogeneous catalysis by a catalyst which comprises a compound of a metal of the first or second sub-group.

Preparation, with heterogeneous catalysis, of N-hydroxyalkyl-substituted

Hydroxyalkyl-substituted aminoalkynes of the general formula I ##STR1## where at least one of the substituents R.sup.1, R.sup.4 or R.sup.5 is hydroxyalkyl are prepared in a reaction with heterogeneous catalysis.

Preparation of hydroxy-alkyl-substituted aminoalkynes with heterogenous

Preparation of vinyl carbamates

Process for the preparation of 1,3-disubstituted imidazolidinones

Aromatic compounds in which at least one amino group is bonded to an aromatic nucleus are catalytically hydrogenated in the liquid phase by a process in which the catalyst consists essentially of ruthenium and, optionally at least one metal of subgroup I, VII or VIII in an amount of from 0.01 to 30% by weight, based on the total weight of the catalyst, applied to a carrier which has a mean pore diameter of at least 0.1 .mu.m and a surface area of not more than 15 m.sup.2 /g.

Hydrogenation of aromatic compounds in which at least one amino group is

Ethylene-based copolymers which are suitable as flow improvers for mineral oil middle distillates are composed of

Ethylene-based copolymers and their use as flow improvers in mineral oil

A process for preparing N-alkenylureas of the general formula I ##STR1## where R.sup.1 and R.sup.2 are hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.2 - to C.sub.40 -alkenyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcyc1oalkyl, C.sub.4 - to C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl, or aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl which are mono- to pentasubstituted by C.sub.1 - to C.sub.8 -alkyl, C.sub.1 - to C.sub.8 -alkoxy or halogen, together are a C.sub.2 - to C.sub.10 -alkylene chain which is unsubstituted or mono- to hexasubstituted by C.sub.1 - to C.sub.8 -alkyl, and

Preparation of N-alkenylureas

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Frankenthal, Germany

Thomas Ruhl