1
Schuster Ludwig, Franz Josef Mueller, Axel Anderlohr, Peter Blei, Gerhart Eigenberger, Bernd Hoppner, Gerd Kaibel, Wolfgang Steiner: Continuous preparation of ethanol. BASF Aktiengesellschaft, John H Shurtleff, May 14, 1985: US04517391 (178 worldwide citation)

Ethanol is prepared by hydrogenating acetic acid under superatmospheric pressure and at elevated temperatures by a process wherein a predominantly cobalt-containing catalyst is used and acetic acid and hydrogen are passed through the reactor, at from 210.degree. to 330.degree. C. and under from 10 t ...


2
Franz Josef Mueller, Wolfgang Steiner, Karl Heinz Ross, Otto Kratzer: Preparation of methyl formate. BASF Aktiengesellschaft, John H Shurtleff, February 19, 1991: US04994603 (5 worldwide citation)

A process for the preparation of methyl formate by reacting methanol and carbon monoxide in the presence of an alkali metal alcoholate or alkaline earth metal alcoholate at from 30.degree. to 150.degree. C. and from 50 to 300 bar, wherein a nonionic complexing agent is used to bind the alkali metal ...


3
Rudi Kroner, Bernd Leutner, Hans Michael Schneider, Holger Friedrich, Kurt Hecky, Dieter Schlafer, Wolfgang Steiner: Regeneration of plastic diaphragm. BASF Aktiengesellschaft, Keil & Weinkauf, May 26, 1998: US05755951 (2 worldwide citation)

A process for the regeneration of plastic diaphragms is described, in which a mineral acid solution is mixed with a suitable corrosion inhibitor, this mixture is temperature controlled at from approximately 0.degree. to 100.degree. C., preferably 40.degree. to 80.degree. C., in particular 50.degree. ...


4
Christian Kuhrs, Eckehard Danz, Wolfgang Steiner, Ralf Thomas Rahn, Thomas Grassler, Reiner Geier, Klaus Harth, Markus Hölzle: Two-stage reactor for the production of melamine. BASF Aktiengesellschaft, Connolly Bove Lodge & Hutz, August 7, 2007: US07253280 (2 worldwide citation)

The present invention relates to a process for the catalytic preparation of melamine by decomposition of urea over particular solid catalysts using a main reactor and an after-reactor. A catalyst having a low Lewis acidity is used in the main reactor and a catalyst having an equal or preferably high ...


5
Rudi Kroner, Bernd Leutner, Dieter Schlafer, Wolfgang Steiner, Holger Friedrich: Recycling of diaphragms. BASF Aktiengesellschaft, Keil & Weinkauf, May 4, 1999: US05899393 (1 worldwide citation)

The invention relates to a process for recycling diaphragms, in particular a process for recycling used asbestos-free diaphragms from alkali metal chloride electrolysis, the diaphragm material being comminuted, the diaphragm material being washed with a wash substrate and a reusable material being o ...


6
Wolfgang Habermann, Axel Anderlohr, Wolfgang Steiner: Metal/metal oxide electrode for determing chlorine. BASF Aktiengesellschaft, Keil & Weinkauf, April 21, 1992: US05106479 (1 worldwide citation)

A metal/metal oxide electrode for determining chlorine in aqueous solutions comprises a metallic tantalum core on which there is non-porous tantalum suboxide.


7
Rudi Kroner, Bernd Leutner, Dieter Schlafer, Wolfgang Steiner, Holger Friedrich: Recycling of diaphragms. BASF Aktiengesellschaft, Keil & Weinkauf, March 2, 1999: US05876785 (1 worldwide citation)

The invention relates to a process for recycling diaphragms, in particular a process for recycling used asbestos-free diaphragms from alkali metal chloride electrolysis, the diaphragm material being comminuted, the diaphragm material being washed with a wash substrate and a reusable material being o ...


8
Rudi Kroner, Bernd Leutner, Dieter Schlafer, Wolfgang Steiner, Holger Friedrich: Recycling of diaphragms. BASF Aktiengesellschaft, Keil & Weinkauf, June 16, 1998: US05765763

The invention relates to a process for recycling diaphragms, in particular a process for recycling used asbestos-free diaphragms from alkali metal chloride electrolysis, the diaphragm material being comminuted, the diaphragm material being washed with a wash substrate and a reusable material being o ...


9

10
Andreas Kern, Hans Ulrich Pröbstle, Tilo John, Wolfgang Steiner, Heiko Maas: Process for preparing melamine. BASF SE, Drinker Biddle & Reath, March 21, 2017: US09598379

Process for preparing melamine by converting urea in the presence of a solid catalyst in one reactor or in a plurality of reactors connected in series in the temperature range from 370° C. to 430° C., cooling and filtering the gas formed in the urea conversion, removing the melamine by desublimation ...