1
John W Geus: Process for homogeneous deposition precipitation of metal compounds on support or carrier materials. Stamicarbon, Cushman Darby & Cushman, September 12, 1978: US04113658 (69 worldwide citation)

This specification discloses a process wherein by applying certain controlled homogeneous precipitation techniques in the presence of a homogeneously distributed finely divided particulate supporting material, there is effected a deposition precipitation of a metal or metal compound on the surfaces ...


2
Johannes van Beijnum, Adrianus J van Dillen, John W Geus: Hydrogenolysis reaction and catalyst suitable therefor. Engelhard De Meern, Weingarten Schurgin Gagnebin & Hayes, March 30, 1993: US05198592 (58 worldwide citation)

The invention concerns a method of performing a chemical reaction in which hydrogenation and/or dehydrogenation occurs, in the presence of a supported catalyst comprising a carrier material with copper as active component and iron as a promotor. According to the invention, the proporation of iron, c ...


3
John W Geus, John W Linowski: Method for the preparation of carbon filaments. The Dow Chemical Company, August 8, 1989: US04855091 (45 worldwide citation)

A method of preparing carbon filaments which comprises exposing a suitable thermostable substrate which is covered with reduced monocrystalline metal particles with a diameter of at least 5 nanometers to a carbon containing gas mixture at temperatures of about 250.degree. up to about 700.degree. C., ...


4
Willem J J van der Wal, John W Geus: Process for removal of sulfur compounds from gases. VEG Gasinstituut, Mandeville and Schweitzer, October 23, 1984: US04478800 (32 worldwide citation)

Process for removal of sulfur compounds from gases by passing the gases over an absorption mass which, on an inert support having a specific surface area of more than 10 m.sup.2 per g, contains metal oxides which react with hydrogen sulfide to give metal-sulfur compounds and at least 20% by weight o ...


5
Antonius J M van Wingerden, Andries Q M Boon, John W Geus: Method of performing a chemical reaction and a reactor for use therewith. Veg Gasinstituut, Weingarten Schurgin Gagnebin & Hayes, November 22, 1994: US05366719 (29 worldwide citation)

This invention relates to a method of conducting a chemical reaction in the presence of a heterogeneous catalyst, in which a feedstock is passed through a catalytic reactor, said reactor comprising a solid reactor bed with a catalytically active material present thereon, and at least one heat supply ...


6
John W Geus, Krijn P de Jong: Silver catalyst and a method for the preparation thereof. Nederlandse Organisatie Voor Zuiver Wetenschappellik Ondebzoek, Jeffrey S Boone, Norman L Sims, Christopher John Rudy, October 22, 1985: US04548921 (29 worldwide citation)

A silver catalyst comprises a sinter resistant carrier covered with finely ivided particles of a metal, a metal alloy or a partially reduced metal oxide having silver deposited thereon such that the outer surface of the particles consists essentially of monometallic silver. The metals are selected f ...


7
Willem J J van der Wal, John W Geus: Process for the preparation of an iron(III) oxide catalyst or absorbent. VEG Gasinstituut, Mandeville and Schweitzer, July 10, 1984: US04459370 (28 worldwide citation)

Process for the preparation of an iron(III) oxide catalyst or absorbent, in which the iron is precipitated from an iron salt solution by means of hydroxyl ions in the presence of a carrier, the charged carrier is dried and optionally calcined and optionally reduced, a solution of an iron(III) salt b ...


8
Jan A Lagas, Johannes Borsboom, Pieter H Berben, John W Geus: Process for recovering sulfur from sulfur-containing gases. VEG Gasinstituut, Comprino, Weingarten Schurgin Gagnebin & Hayes, January 29, 1991: US04988494 (25 worldwide citation)

The invention is directed to a process for the recovery of sulfur from a hydrogen sulfide containing gas, which comprises oxidizing hydrogen sulfide with oxygen, and then reacting the product gas of this oxidation further by using at least two catalytic stages, in accordance with the equation: 2H.su ...


9
Willem J J van der Wal, John W Geus: Reaction mass, method for the manufacture thereof and use thereof. VEG Gasinstituut, Mandeville & Schweitzer, December 16, 1986: US04629612 (22 worldwide citation)

Reaction mass containing mixed oxides of iron with one or more metals of groups IV to VII of the periodic table of the elements, wherein the mixed oxides are deposited in finely divided form on an inert refractory substrate with a high specific surface area. The invention also relates to methods for ...


10
Nilanjan Brahma, John W Geus, Eugene G M Kuijpers: Process for hydrogenation and/or dehydrogenation. Engelhard De Meern, Weingarten Schurgin Gagnebin & Hayes, January 9, 1996: US05482616 (18 worldwide citation)

This invention relates to a catalyst for hydrogenation and/or dehydrogenation having an improved resistance against deactivation by sulfur compounds, comprising at least one hydrogenation component, at least one metal-oxide containing component and at least one component acting as a support material ...