Basf Aktiengesellschaft

Basf Se Corporation

Matthias Kummer

Frank Rosowski

Gerhard Olbert

Torsten Mattke

Manfred Niessner

Wolfram Weiss

Werner Peschel

Johann-Peter Melder

Alfred Oftring

Manfred Julius

Johannes P Dix

Oliver Bey

Hans Schupp

Norbert Asprion

Frank Stein

Wolfgang Mägerlein

Werner Streit

Peter Reuter

Bernd Bessling

Wolfgang Schenk

Peter M Lorz

Thomas Ruehl

Thomas R&uuml;hl

Ralf Biastoch

Kevin Huyghe

Klaus Flory

Bernhard Ulrich

Jean Werner Knab

Attila Bereck

Gabriele Frank

Georg Meichsner

Stefanie Werland

Marcus Bechtel

Maarten Moors

Thomas Rühl

A process for preparing ethylamines and monoisopropylamine (MIPA), in which bioethanol is reacted with ammonia in the presence of hydrogen and of a heterogeneous catalyst to give ethylamines, said bioethanol having a content of sulfur and/or sulfur compounds of &#x2267;0.1 ppm by weight (calculated S), and then isopropanol is reacted with ammonia in the presence of the same catalyst and in the presence of hydrogen to give MIPA.

Process for preparing ethylamines and monoisopropylamine (MIPA)

Process for the preparation of on-spec phthalic anhydride by the distillative purification of crude phthalic anhydride at reduced pressure, where the crude phthalic anhydride is passed to the distillation column above a side take-off, the low-boiling components are removed at the top of the column or in the vicinity of the top of the column and the on-spec phthalic anhydride is removed from the side take-off of the column, in which a distillation column is used whose number of theoretical plates located above the supply of the crude phthalic anhydride into the distillation column is 10 to 20 and the column is operated at a reflux ratio of from 0.1 to 0.5.

Method for producing phthalic anhydride that conforms to specifications

A reactor for testing catalyst systems which has a plurality of catalyst tubes () which are arranged parallel to one another in the interior space of the reactor and whose ends are welded into tube plates and also has caps () at each end of the reactor which each bound a cap space (), with a fluid reaction medium () being fed via one cap space () into the catalyst tubes (), flowing through the catalyst tubes () and being discharged via the other cap space (), and is also provided with a heat exchange medium circuit in which the heat exchange medium () is fed in at one end of the reactor, flows through the intermediate space between the catalyst tubes () and flows out at the other end of the reactor, wherein the catalyst tubes () are arranged in two or more catalyst tube regions () which are thermally separate from one another, is proposed.

Reactor for testing catalyst systems

The invention relates to a pump () having a pump guide tube () for the transport of a heat-exchange medium () for a reactor having a bundle of catalyst tubes (), where the pump () has a casing () which surrounds the pump guide tube (), having an aperture () in the lower part of the casing () via which the heat-exchange medium () discharged from the lower region of the reactor by means of the pump () flows into the casing (), flows upward in the region between the inner wall of the casing () and the outer wall of the pump guide tube (), if desired via a heat exchanger (), flows into the interior of the pump guide tube () via an aperture () in the upper region of the pump guide tube (), flows through the pump guide tube () from top to bottom and flows via an aperture () in the lower region of the pump guide tube () into the reactor, into the upper region of the interspace between the catalyst tubes ().

Pump for transporting heat-exchange medium for a multi-tube reactor

On-spec phthalic anhydride is prepared by distillative purification of crude phthalic anhydride by a process in which crude phthalic anhydride is fed to a distillation column which is operated at reduced pressure, the low boilers are removed at the top or in the vicinity of the top of the distillation column and the on-spec phthalic anhydride is removed from the column via a side take-off.

Method for producing phthalic anhylic anhydride according to specifications

A mixture comprises an amino resin and a polymer which consists to the extent of at least 80% by weight of C - to C alkylene oxide groups.

Emulsifiers for amino resins

Microcapsules of low-formaldehyde melamine/formaldehyde resins

Aqueous solutions of N-methylol compounds of carboxamides, urethanes, ureas and aminotriazines or of N-methylol ethers of these compounds that are suitable for finishing cellulose-containing textile materials are prepared by reaction of compounds having one or more N--H groups in aqueous solution with formaldehyde and, in the case of N-methylol ethers, with an alcohol by adding boron trifluoride, a boron trifluoride addition compound or tetrafluoroboric acid or a salt thereof to the aqueous solutions during or immediately after the reaction.

Preparation of aqueous solutions suitable for finishing cellulose

Aminotriazine derivatives containing glycol ether and their use in

Textile materials are pretreated in aqueous media by alkaline scouring and/or bleaching using an assistant comprising a compound of the general formula I ##STR1## where R is C.sub.6 -C.sub.10 -alkyl, X is H, Na, K or NR.sup.1 R.sup.2 R.sup.3 R.sup.4, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each H, C.sub.1 -C.sub.4 -alkyl or --CH.sub.2 --CH.sub.2 --OH.

Pretreatment of textile materials: alkaline scour or bleach with

Growing community of inventors

Weisenheim, Germany

Matthias Kummer