| Patent Number |
Title Of Patent |
Date Issued |
| 7148179 |
Catalyst support |
December 12, 2006 |
| A catalyst support is produced by mixing particulate synthetic silica with 0.5 10 parts by weight of one or more particulate oxides or phosphates of the elements of group IIA, IIIB, IVB, VA, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and lanthanides or precursors thereof, shaping the mixture an |
| 6989345 |
Catalyst support |
January 24, 2006 |
| A catalyst support is produce by mixing particulate synthetic silica with 0.5 10 parts by weight of one or more particulate oxides or phosphates of the elements of group IIA, IIIB, IVB, VA, VIB, VIIB, VIII, IB, IIB, IIIA, IVA and lanthanides or precursors thereof, shaping the mixture and |
| 6821922 |
Supported catalyst for the production of vinyl acetate monomer |
November 23, 2004 |
| Moldings based on pyrogenically produced mixed oxide having the following physicochemical parameters:are produced by homogenizing pyrogenically produced mixed oxide as desired with one or more compounds from the group methylcellulose, methylhydroxyethylcellulose, wax, polyethylene glycol |
| 6593270 |
Moldings based on pyrogenic silicon dioxide |
July 15, 2003 |
| Moldings based on pyrogenic silicon dioxide with a pore volume of 0.5 to 1.8 ml/g are prepared by homogenizing pyrogenic silicon dioxide with methylhydroxyethyl cellulose, wax and polyethylene glycol with the addition of water, subjecting this mixture to a compounding and shaping pro |
| 6432869 |
Moldings including pyrogenic mixed oxide and the use thereof |
August 13, 2002 |
| Moldings are disclosed for use as a catalyst or catalyst support for hydrating olefin, such as ethylene and propylene. The moldings are based on a pyrogenically produced mixed oxide having the following physicochemical parameters:The moldings are produced by homogenizing pyrogenically pr |
| 6207610 |
Compacts based on pyrogenically produced silicon dioxide |
March 27, 2001 |
| Compacts based on pyrogenically produced silicon dioxide and having the following physical and chemical characteristics:are produced in that pyrogenically produced silicon dioxide is homogenized with methyl cellulose, microwax and polyethylene glycol with addition of water, dried at a te |
| 5959164 |
Use of catalysts based on catalyst supports containing silicon dioxide for catalytic reactions u |
September 28, 1999 |
| The use of modified silicon dioxide as a catalyst support in catalytic reactions under hydrothermal conditions is described. The pore structure of the supports may be stabilized against hydrothermal reaction conditions by impregnating the catalyst supports with elements of Group IVB of t |
| 5858906 |
Compacts based on pyrogenically produced oxides |
January 12, 1999 |
| Compacts produced from a pyrogenically produced oxide, magnesium stearate, methyl cellulose and urea are mixed together in the presence of water, compacted, dried, comminuted to a powder, and the powder is pressed with an isostatic press to compacts and the compacts tempered. The resulti |
| 5808136 |
Catalyst, method of its production and its use for the production of vinyl acetate monomer |
September 15, 1998 |
| A catalyst and method of its production for use in making vinyl acetate monomer. The carrier is impregnated with a basic solution and a solution containing gold salts and palladium salts and finally impregnated with alkali acetate. The activity and selectivity of the catalyst, its me |
| 5776240 |
Granules based on pyrogenically prepared silicon dioxide, methods for their preparation and use |
July 7, 1998 |
| Granules based on silicon dioxide and having the properties:Average particle size: 10 to 120 .mu.mBET surface area: 40 to 400 m.sup.2 /gPore volume: 0.5 to 2.5 ml/gPore size distribution: less than 5% of the total pore volume exists of pores with a diameter<5 nm, remainder are meso- and macro |
| 5536694 |
Catalyst precursor for an activated raney metal fixed-bed catalyst, an activated raney metal fix |
July 16, 1996 |
| Shaped, activated Raney metal fixed-bed catalysts are obtained by molding a powder of at least one catalyst alloy, comprising at least one Raney process metal as catalytically active component and a leachable alloy component, and a powder of pure Raney process metal as binder with the |
| 5366938 |
Shaped articles based on pyrogenically produced titanium dioxide |
November 22, 1994 |
| Pressed parts based on pyrogenically produced titanium dioxide with the following physico-chemical characteristics:They are produced by mixing pyrogenically produced titanium dioxide with urea, graphite and water, compacting the mixture, optionally drying the resulting mass at 80.degree. |
| 5231067 |
Shaped articles based on pyrogenically produced titanium dioxide, method of their production and |
July 27, 1993 |
| Pressed parts based on pyrogenically produced titanium dioxide with the following physico-chemical characteristics:They are produced by mixing pyrogenically produced titanium dioxide with urea, graphite and water, compacting the mixture, optionally drying the resulting mass at 80.degree. |
| 5166120 |
Cylindrically formed catalyst for the oxychlorination of ethylene |
November 24, 1992 |
| A carrier catalyst containing copper and alkali ions on an annular carrier of surface-active material is defined by the dimensions of the carrier body and the porosity of the finished catalyst. Its total pore volume is 0.6-1.0 ml/g, pores smaller than 4 nm diameter are not present, pores |
| 5132452 |
Method for preparation of gluconic acid by catalytic oxidation of glucose |
July 21, 1992 |
| A process for making gluconic acid and its alkali metal salts by oxidizing glucose with oxygen or oxygen containing gas in an aqueous alkaline solution in the presence of an activated charcoal supported catalyst containing a platinum group metal component, e.g. platinum and palladium |
| 5099085 |
Chlorination reactions and oxychlorination reactions in the presence of honeycomb monolithic cat |
March 24, 1992 |
| The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a multiplicity of channels open a |
| 5086031 |
Pressed parts based on pyrogenically produced silicon dioxide, method of their production and th |
February 4, 1992 |
| Pressed parts based on pyrogenically produced silicon dioxide with the following physicochemical characteristic data:are produced by homogenizing pyrogenically produced silicon dioxide with urea, methyl cellulose and/or magnesium stearate, graphite and aluminum stearate with the addition |
| 5021378 |
Molded articles based on pyrogenically prepared silicon dioxide, process for their production an |
June 4, 1991 |
| Molded articles based on pyrogenically prepared silicon dioxide and having the following physical-chemical characteristic data:These products are produced by compacting pyrogenically prepared silicon dioxide with kaolin and/or graphite, sugar, starch, urea or wax with addition of water, |
| 5015615 |
Molded articles based on pyrogenically prepared aluminum oxide and process for their production |
May 14, 1991 |
| Molded articles based on pyrogenically prepared aluminum oxide and having the following physical-chemical characteristic data:They are produced by homogenizing pyrogenically prepared aluminum oxide with kaolin and/or graphite, urea, wax, sugar or starch with addition of water, drying the |
| 5004719 |
Molded articles based on pyrogenically produced zirconium dioxide method for their manufacture, |
April 2, 1991 |
| Molded, or pressed articles on pyrogenically produced zirconium dioxide are disclosed and having the following features:These molded articles are manufactured by homogenizing pyrogenically produced zirconium dioxide with any one of kaolin, sugar, or urea, or mixtures while water is being |
| 5002918 |
Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and alumi |
March 26, 1991 |
| A molded; i.e. pressed, article based on a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide and having the following physical-chemical features:These molded articles are manufactured by homogenizing a pyrogenically produced system of mixed oxides of sil |
| 5002917 |
Molded articles based on pyrogenically produced titanium dioxide method for their manufacturing |
March 26, 1991 |
| The invention concerns pressed pellets based on pyrogenically produced titanium dioxide having the following properties:They are made by mixing pyrogenically produced titanium with a foaming agent such as urea and with water, where called binder such as kaolin and also with a binder such |
| 4409185 |
Safety device for packagings which contain hydrogen emitting pyrophoric metallic catalysts |
October 11, 1983 |
| The object of the invention is a safety device for packagings which contain pyrophoric metallic catalysts that emit hydrogen. The apparatus consists of a hollow stopper, open upward, in the bottom of which a pressure relief valve is fitted, an oxidation catalyst arranged in the stopper, |
