Ticona Gmbh

Aventis Research & Technologies Gmbh & Co Kg

Hoechst Research & Technology Deutschland Gmbh & Co. Kg

Heinz Alexander

Harald Werner

Uwe Dingerdissen

Alfred Hagemeyer

Matthias Beller

Elke Schweers

Richard Walter Fischer

Klaus K&uuml;hlein

Gerhard Geiss

Rolf Peter Schulz

Elfriede Hufsky

Frank Olschewski

Burkhard Zimmermann

Jurgen Herwig

Helmut Tr&auml;nkler

A process for the gas-phase trimerization of formaldehyde to give trioxane using solid phosphoric acid catalysts. Particularly suitable catalysts for this process are SPA catalysts (solid phosphorous acid), for example &ldquo;silicon phosphates&rdquo;. The main advantage of this catalyst system is its simple and inexpensive production and ready availability and also, in particular, its improved long-term stability compared to the few previously described catalysts which are mostly based on supported heteropolyacids.

Trimerization of formaldehyde in the gas phase

Process for the catalytic oxidation of 1,5-dialkylbicyclo(3.2.1)octan-8-ol to give 1,5 dialkylbicyclo(3.2.1)octan-8-one

The invention relates to a process for the preparation of an amine by single-stage reaction of a C.sub.2 -C.sub.20 -olefin with a compound having an NH.sub.3 group, hydrogen and carbon monoxide, wherein the reaction takes place in the presence of a catalyst, which is present in water in dissolved or suspended form, and the catalyst contains at least two metals from group VIII of the Periodic Table of the Elements in elemental or bonded form.

Single-stage process for the preparation of amines

Growing community of inventors

Frankfurt-am-Main, Germany

Heinz Alexander