Basf Aktiengesellschaft

Basf Se Corporation

Dieter Stuetzer

Christian Schneider

Martin Karches

Lothar Seidemann

Ekkehard Schwab

Eckhard Stroefer

Peter Zehner

Thomas Wettling

Herwig Hoffmann

Carsten Knoesche

Andreas Woelfert

Sebastian Ahrens

Bernd Sachweh

Wolfgang Richter

Max Strohmeyer

Otto-Alfred Grosskinsky

Guenter Herrmann

Volker Seidl

Joana Coelho Tsou

Werner Bochnitschek

Rolf Schnabel

Thomas Grassler

Franz Weber

Lucia Koenigsmann

Helmut Walz

Uwe Rachwalsky

Celine Liekens

Marco-Christian Volland

Ulrich Loeffler

Markus Linsenbuhler

Carolin Nadine Duecker

Alexandra Wiedemann

Erich Weippert

The present invention relates to a process for nonoxidatively dehydroaromatizing a reactant stream comprising C-C-aliphatics, comprising the steps of

Process for preparing benzene from methane

The invention provides a process for preparing isocyanates by reacting amines with phosgene, wherein the amine or a mixture of amine and a solvent is mixed in the form of an aerosol with gaseous phosgene and the amine is subsequently reacted with phosgene.

Method for producing isocyanates

A process for preparing aromatic amines by catalytic hydrogenation of the corresponding nitro compound in a fluidized-bed reactor, in which a gaseous reaction mixture comprising the nitro compound and hydrogen flows from the bottom upward through a heterogeneous particulate catalyst forming a fluidized bed, wherein the fluidized bed is provided with internals which divide the fluidized bed into a plurality of cells arranged horizontally in the fluidized-bed reactor and a plurality of cells arranged vertically in the fluidized-bed reactor, with the cells having cell walls which are permeable to gas and have openings which ensure an exchange number of the heterogeneous, particulate catalyst in the vertical direction in the range from 1 to 100 liters/hour per liter of reactor volume, is proposed.

Process for preparing aromatic amines in a fluidized-bed reactor

A fluidized-bed reactor for carrying out a gas-phase reaction, in which a gaseous reaction mixture flows from the bottom upward through a heterogeneous particulate catalyst forming a fluidized bed and internals are arranged in the fluidized bed, wherein the internals divide the fluidized bed into a plurality of cells arranged horizontally in the fluidized-bed reactor and a plurality of cells arranged vertically in the fluidized-bed reactor, with the cells having cell walls which are permeable to gas and have openings which ensure an exchange number of the heterogeneous particulate catalyst in the vertical direction in the range from 1 to 100 liters/hour per liter of reactor volume, is proposed.

Fluidized-bed reactor for carrying out a gas-phase reaction

The present invention relates to a process for preparing polyisobutene by polymerizing isobutene using an inert diluent and a halogen-containing Lewis acid as a catalyst, wherein the isobutene in the form of droplets is contacted with the Lewis acid in a polymerization apparatus.

Method for producing polyisobutene

Olefinically unsaturated compounds are hydroformylated continuously, the olefin being passed into the lower region of the reactor, under from 1 to 40 bar and at from 50.degree. to 140.degree. C. with the aid of a rhodium complex as a catalyst in a hydroformylation reactor having a liquid reaction zone which occupies about 60-85% of the reactor volume, the gaseous products and reactants being removed from the hydroformylation reactor, the products being isolated and the major part of the remaining gas being recycled to the reactor by the cycle gas method, by a process in which from 20 to 80% by volume of the cycle gas is fed into the hydroformylation reactor above the liquid reaction zone and/or below the liquid surface in the top fourth of the liquid reaction zone.

Continuous hydroformylation of olefinically unsaturated compounds

Solutions of molecular oxygen in liquid hydrocarbons are prepared by bringing a liquid hydrocarbon into contact with molecular oxygen under superatmospheric pressure in a vertical absorption zone, by a process in which

Preparation of solutions of molecular oxygen in liquid hydrocarbons

Growing community of inventors

Dudenhofen, Germany

Dieter Stuetzer