1
Buchold Henning Dr, Boensch Rudolf Dr, Schroeppel Joerg Dr: Process for degumming vegetable oils with enzymes.. Metallgesellschaft, Roehm, May 24, 1995: EP0654527-A1 (39 worldwide citation)

The vegetable oil to be degummed is adjusted to a pH of 3 to 6 and mixed with an aqueous enzyme solution which contains one of the enzymes phospholipase A1, A2 or B. The enzymes are allowed to act in the oil with stirring at temperatures from 20 to 90 DEG C in a degumming reactor. A separation auxil ...


2
Schneider Michael Dipl Chem Dr, Schmidt Friedrich Dipl Chem Pr, Burgfels Goetz Dipl Chem Dr, Buchold Henning Dr Chem, Moeller Friedrich Wilhelm Dr C: Process for preparing lower olefins.. Sued Chemie, Metallgesellschaft, September 25, 1991: EP0448000-A1 (15 worldwide citation)

The invention relates to a process for the production of lower olefins from methanol by reaction of a reaction mixture containing methanol and/or dimethyl ether vapour and water vapour in a tubular reactor over an indirectly cooled catalyst based on crystalline aluminosilicates of the pentasil type ...


3
Voeste Theodor, Buchold Henning Dr, Aalrust Erik, Saft Helmut, Schmidt Hans Joachim Dr, Mallok Gerd, Ludwig Ernst: Process for the production of methyle or ethyle esters from fatty acids and glycerine by transesterification of oils or greases.. Metallgesellschaft, January 20, 1993: EP0523767-A2 (10 worldwide citation)

Oils or fats, in particular of vegetable, but also of animal origin, are reacted with methanol or ethanol and an alkaline catalyst in the liquid phase. Glycerine and methyl esters of fatty acids or ethyl esters of fatty acids are formed. The reaction is carried out using at least two reaction steps, ...


4
Buchold Henning Dr, Cornelius Gerhard, Moeller Friedrich Dr, Supp Emil: Process for the production of olefins having from 2 to 5 c atoms from methanol and/or dimethyl ether.. Metallgesellschaft, January 2, 1985: EP0129919-A1 (4 worldwide citation)

The starting material, which usually contains water, is reacted on a silicalite catalyst at temperatures of 200 to 600 DEG C and under a pressure of 1 to 35 bar. Silicalite is crystalline SiO2 without ion exchange ability.


5
Buchold Henning Dr, Koenig Peter Dr, Ludwig Ernst, Kramer Wolfgang: Process for the production of methyl esters of fatty acids or ethyl esters of fatty acids and glycerine by transesterification of oil or fat. Metallgesellschaft, April 17, 1996: EP0706988-A1 (3 worldwide citation)

Liquid phase reaction of oil or fat with MeOH or EtOH and an alkaline catalyst (I) to give the fatty acid (m)ethyl ester and glycerol, which are recovered separately, is carried out in one or more stages. Each stage has a mixer and a separator for sepg. a light, ester-rich phase (II) and a heavy, gl ...


6
Schlichting Eberhard Dr, Buchold Henning Dr, Mallok Gerd, Gaertner Fritz Juergen Dr, Stoenner Hans Martin: Process for the production of wax esters.. Metallgesellschaft, June 21, 1995: EP0658535-A1 (2 worldwide citation)

The wax ester is produced from a liquid mixture containing at least one fatty acid and at least one fatty alcohol, the fatty acid and the fatty alcohol containing 6 to 30 C atoms per molecule. The mixture is agitated at temperatures in the range from approximately 105 to 300 DEG C and sprayed into a ...


7
Boensch Rudolf Dr, Mitschke Peter, Buchold Henning Dr, Greven Heinzpeter, Dederichs Hans Theo, Grossgarten Thomas: Process for the removal of short chain fatty acids from aqueous glycerol solutions. Metallgesellschaft, Peter Greven Fett Chemie, February 28, 2001: EP1078906-A1 (1 worldwide citation)

Short-chain (4-10C) fatty acids (I) are removed from aqueous glycerol solutions (II) by passing (II) through a pump feed tank into a filtration unit to give glycerol solution as permeate and a (I)-containing retentate which is returned to the feed tank, so that the solubility limit for (I) is exceed ...


8
Buchold Henning Dr, Gaertner Fritz Juergen Dr, Mallok Gert, Schlichting Eberhard Dr, Stoenner Hans Martin: Process for the production of wax ester and hydrogenation of the wax ester to fatty alcohol. Metallgesellschaft, October 16, 1996: EP0737664-A2 (1 worldwide citation)

Prepn. of fatty alcohols (A) from a liq. starting mixt. (M) contg. at least one 6-30C fatty acid (B) and 1 - 1.5 mols. 6-30C (A) per mol. (B), comprises the following steps : (1) (M) is stirred in one or more zones at ca. 120 - 320 degrees C ; (2) the wax ester-contg. mixt. is sprayed into a zone wi ...


9
Stoenner Hans Martin, Buchold Henning Dr: Method of controlling the amount of used catalyst to be recycled to a hydrogenation reactor, used to produce fatty alcohols from fatty acids, or their derivatives.. Metallgesellschaft, August 31, 1994: EP0612710-A1

Process concerns control of the amt. of spent catalyst (IA) recycled to a hydrogenator used for prodn. of fatty alcohols (II) by hydrogenation of fatty acids and/or their derivs. with H2 in the presence of a dispersion contg. (IA) and fresh catalyst (IB) at 100-400 deg.C and 20-400 bar. Control comp ...


10
Moller Friedrich Wilhelm Dr, Buchold Henning Dr, Klein Helmut, Garkisch Otto Ludwig Dr: Process for the preparation of styrene by dehydrogenation of ethyl benzene.. Metallgesellschaft, Deggendorfer Werft Eisenbau, December 5, 1984: EP0127211-A2

Die Dehydrierung von √Ąthylbenzol im Gemisch mit Wasserdampf zu Styrol erfolgt an einem in R√∂hren angeordneten, durch eine Salzschmelze indirekt beheizten Katalysator bei einem Druck von 0,3 bis 1 bar und einer Temperatur der Salzschmelze von 580 bis 660 DEG C. Der innere Durchmesser der Katalysatorr ...