| Patent Number |
Title Of Patent |
Date Issued |
| 7258841 |
Reactor for gasifying granular fuels that form a fixed bed |
August 21, 2007 |
| The inventive reactor contains a fixed bed into whose lower area an oxygen-containing gasifying agent is introduced. Said gasifying agent moves upwards in the fixed bed. Product gas containing hydrogen and carbon monoxide is guided out of the reactor over the fixed bed, through a dis |
| 6709750 |
Hot-melt adhesive for sealing the edge of laminated glass |
March 23, 2004 |
| The invention relates to a hot-melt adhesive for sealing the edge of laminated glass that has been produced according to cast-resin technology. The inventive adhesive comprises acrylate or metacrylate homopolymers or copolymers or mixtures thereof. The invention also relates to a method |
| 6688474 |
Process for removing relatively coarse-grained solids from a stationary fluidized bed |
February 10, 2004 |
| According to the invention, a fluidizing gas is introduced upwards into the fluidized bed (3) through a valve grid (2), said stationary fluidized bed (3) containing solids with different grain sizes. A supply pipe (10) is disposed in the area of the fluidized bed, the mouth of said pipe |
| 6627172 |
Process for preparing sulphuric acid from gases containing SO3 and gaseous nitrosylsulphuric aci |
September 30, 2003 |
| Process for preparing sulphuric acid from gasses containing SO.sub.3 and gaseous nitrosylsulphuric acid (NO.sup.+ HSO.sub.4.sup.- or HO.sub.3 SONO) by contact with 94% to 98% sulphuric acid, wherein the gases flow through at least one cooler and are cooled down to 160.degree. C. to 130.d |
| 6599351 |
Anti-corrosive white pigments and method for producing the same |
July 29, 2003 |
| Anticorrosive white pigments useful for inhibiting corrosion include surface-coated TiO.sub.2 base bodies, preferably in the rutile modification, having Mn.sub.3 (PO.sub.4).sub.2 and one or more of the substances chosen from aluminum oxides, aluminum hydroxides, aluminum phosphates, |
| 6596061 |
Inorganic anti-corrosive pigments and method for the production thereof |
July 22, 2003 |
| Inorganic anti-corrosive pigments consist of surface-coated solids having a grain size of 0.1 to 75 .mu.m. In order to improve the resistance of the paints and coatings containing such pigments, firstly Mn.sub.3 (PO.sub.4).sub.2 and secondly aluminium oxides and/or aluminium hydroxides |
| 6534678 |
Process for producing tartaric acid from a raw material containing potassium hydrogentartrate |
March 18, 2003 |
| Process for producing tartaric acid from a raw material whose dry matter comprises at least 5 wt% potassium hydrogentartrate wherein the raw material containing potassium hydrogen tartrate (KHT) is mixed with aqueous potassium hydroxide solution in a first reaction stage, where KHT i |
| 6506516 |
Lithium bisoxalatoborate, the production thereof and its use as a conducting salt |
January 14, 2003 |
| The invention relates to the novel lithium bisoxalatoborate compound, and to a method for producing this compound, on the basis of a lithium compound, an oxalic acid or an oxalate, and a boron compound. The invention also relates to another production method on the basis of lithium b |
| 6500402 |
Catalyst for oxidizing SO2 to SO3 and utilization of the catalyst in a method for producing sulf |
December 31, 2002 |
| A catalyst for reacting SO.sub.2 with molecular oxygen to form SO.sub.3 is suited for a continuous operation at temperatures of 700.degree. C. and above, when the same consists of a carrier and an active component connected with the carrier, the active component consists of 10 to 80 wt-% |
| 6497771 |
Aqueous solution and method for phosphatizing metallic surfaces |
December 24, 2002 |
| An aqueous solution contains phosphate for producing layers of phosphate on metal surfaces selected from the group consisting of iron, steel, zinc, zinc alloys, aluminum and aluminum alloys. The solution contains 0.3 to 5 g Zn.sup.2+ /1, 0.1 to 2 g nitroguanidine/1 and 0.05 to 0.5 g |
| 6481385 |
Fluidized bed combustion system with steam generation |
November 19, 2002 |
| A solid fuel fluidized-bed steam generator in which a pair of combustion chambers straddle a heat-exchange chamber of rectangular configuration in a row and have one or more gas/solids separators connected to the combustion chambers at the tops thereof and lines which deliver gas from |
| 6479439 |
Regenerator of acid reaction lubricant residues |
November 12, 2002 |
| The invention relates to a method for regenerating reaction lubricant residues containing acid organic lubricants refused and processed during cold forming and multivalent metal ions and phosphate ions, wherein said reaction lubricant residues undergo the following procedural steps: a) |
| 6469203 |
Method for depolymerizing polymethylmethacrylate |
October 22, 2002 |
| The present invention relates to a process of recovering monomeric esters of substituted or unsubstituted acrylic acid from polymer material having corresponding structural units by depolymerization by means of a fine-grained heat-transfer medium which is maintained above the depolym |
| 6413415 |
Method for high-temperature short-time distillation of residual oils |
July 2, 2002 |
| High temperature flash distillation, for treating residual oils originating from crude oil refining, natural bitumen and/or tar sands, comprises feeding the oil to a mixer with granular hot coke, which serves as a thermal transfer medium. In mixing, 60-90% of the oil is vaporized. The |
| 6368389 |
Method for separating vaporous phthalic acid anhydride from a gas stream |
April 9, 2002 |
| Phthalic acid anhydride is recovered from a gas stream containing phthalic acid anhydride vapors by passing the gas stream upwardly through a vertical tube so that the gases expand at the orifice at the upper end of the tube and mix with granules entrained above the tube by fluidizing ga |
| 6291713 |
Process of transferring .alpha., .beta.-unsaturated alkyl groups to electrophiles |
September 18, 2001 |
| There is described a process of transferring .alpha.,.beta.-unsaturated alkyl groups to an electrophile (aldehyde, ketone, nitrile, imine, alkyne) by means of a masked zinc alkyl in an aprotic solvent. |
| 6261644 |
Process for the electroless deposition of copper coatings on iron and iron alloy surfaces |
July 17, 2001 |
| Disclosed is a process for the electroless deposition of a copper coating on an iron or iron alloy surface wherein the workpiece surface is contacted with a solution which contains hydrogen ions, 5 to 30 g/l Cu as well as 0.2 to 5 g/l Mg and preferably copper and magnesium with a weight |
| 6261482 |
Method for producing organo-alkali metal compounds |
July 17, 2001 |
| The invention relates to a method for producing organo alkali-metal compounds by reacting metal lithium, sodium or potassium with organic compounds containing at least one acidic CH bond in a solvent. The inventive method is characterized in that the reaction is carried out in the pr |
| 6261384 |
Process and aqueous solution for phosphatizing metallic surfaces |
July 17, 2001 |
| A process is disclosed for preparing an aqueous zinc phosphatizing solution for producing phosphate coatings on metallic surfaces of iron, steel, zinc, zinc alloys, aluminum or aluminum alloys, which comprises:(1) 0.3 to 5 g Zn.sup.2+ /1;(2) 0.1 to 3 g nitroguanidine/1 as an accelerator;(3) |
| 6241958 |
Process for preparing sulfate-containing basic solutions of polyaluminumchloride |
June 5, 2001 |
| The process of preparing a solution of basic sulfate-containing polyaluminum chloride includes digesting an aluminum-containing substance with hydrochloric acid to form a resulting solution and an insoluble residue; filtering the resulting solution to separate the insoluble residue t |
| 6238639 |
Process for removing NOx from nitrosylsulphuric acid |
May 29, 2001 |
| Nitrosylsulphuric acid is mixed in a mixing reactor with sulphuric acid saturated with SO.sub.2. The acid mixture is led into a saturating reactor into the bottom region of which water and an SO.sub.2 -containing gas are introduced. The gas partially serves as stripping gas inside the |
| 6238547 |
Process for carrying out chemical reactions in an electrochemical cell |
May 29, 2001 |
| This invention concerns a process in which gases or gas mixtures are reacted in the presence of an ion-conductive liquid in an electro-chemical cell. The cell has at least one anode (2) and at least one cathode (3) to which an external electrical constant potential is applied so that a |
| 6237368 |
Process for the regulating or controlling the NOx content of exhaust gases given off during the |
May 29, 2001 |
| A method for regulating or controlling the content of NO.sub.x in the exhaust gases of a glass-melting furnace having several burners operated in alternation, wherein both the beginning and the end of a combustion break (FP.sup.+, FP.sup.-) are supplied to a binary signal generator (8) |
| 6224720 |
Electrolytic cell with removable bipolar electrodes |
May 1, 2001 |
| An electrolytic cell is disclosed which comprises:(a) an electrolyte; and(b) a plurality of bipolar electrodes surrounded by the electrolyte and electrically connected in series during operation of the cell, the bipolar electrodes each comprising a cathode side, an anode side, and an ele |
| 6191295 |
Stable trimeric isopropoxyalane, method of producing the same, and use thereof |
February 20, 2001 |
| The invention relates to stable trimer isopropoxyalane of composition H.sub.5 Al.sub.3 (OiPr).sub.4, wherein iPr is a (CH.sub.3).sub.2 CH radical. The invention also relates to a method for producing stable trimer isopropoxyalane, wherein AlH.sub.3 is reacted with Al(OiPr).sub.3 or i |
| 6184404 |
Process for the selective alkylation of aldehydes by means of organozinc compounds |
February 6, 2001 |
| There is described a process for the enantioselective alkylation of aldehydes by means of organozinc compounds, of which a ligand of the zinc is transferred to the aldehyde, and the other ligand acts as so-called dummy ligand. As novel substances there are used zinc-organic compounds, |
| 6136067 |
Process of monitoring the operability of a filtering plant for dedusting gases |
October 24, 2000 |
| The filtering plant has a plurality of porous, gas-permeable filter elements with at least one raw gas side and at least one clean gas side. The gas to be cleaned (raw gas) flows towards the raw gas side, and the clean gas side is connected with a clean gas passage. Into the clean gas |
| 6099922 |
Thermally insulated metal surface protected against metal dusting corrosion |
August 8, 2000 |
| The metal surface protected against metal-dusting corrosion has an insulating layer of a gas-permeable, thermally insulating material. The side of the thermal insulating layer that is colder during operation is in direct vicinity of the metal surface, and the side of the insulating layer |
| 6087139 |
Process for producing citric acid and/or citrates |
July 11, 2000 |
| Citric acid and/or the salts thereof are produced from a raw material containing carbohydrates. An aqueous solution of the raw material is converted into a first solution containing citric acid by means of fermentation, and from the first solution a second solution containing citric |
| 6077549 |
Process for the continuous production of beer |
June 20, 2000 |
| A process is for the continuous production of beer having a diacetyl content below 0.1 mg/l from a cooked, unfermented, fermentable wort with an oxygen content of 0.5 to 3.0 mg O.sub.2 per liter. |
| 6074456 |
Process for hot briqueting granular sponge iron |
June 13, 2000 |
| The granular sponge iron is supplied to a roller press at temperatures of 600 to 850.degree. C. for molding the hot briquets. There is produced a strip structure of sponge iron containing formed hot briquets, which are arranged at a distance from each other. By smashing the strip structu |
| 6063345 |
Method of separating NaCl from a LiCl solution |
May 16, 2000 |
| Disclosed is a method of separating NaCl from a NaCl contaminated aqueous LiCl solution involving concentration of the solution, cooling of concentrated solution and separation of the crystallized NaCl. The method is characterized in that the concentration and cooling or cooling of the |
| 6051155 |
Preparations containing wax |
April 18, 2000 |
| Wax-containing preparation for treating wood and leather surfaces, comprising very fine transparent titanium dioxide particles with a crystallite size of between 5 and 50 nm offer long-term protection of wood and leather surfaces against the harmful effects of light at wavelengths be |
| 6034041 |
Lubricant for metal forming |
March 7, 2000 |
| Disclosed is a solid or aqueous lubricant concentrate used for the cold forming of metals, which, with reference to the solids content, including a) 20 to 50 parts by weight polyethylene with a softening point above 120.degree. C. and a particle size int he range between 0.1 and 50 .mu.m |
| 6030444 |
Mixture for treating silicon-containing substrates |
February 29, 2000 |
| A mixture is proposed for treating substrates, in particular glass or ceramic material, containing silicon compounds. The proposed mixture consists of the following components: (a) component A, which is formed from at least the polysiloxane with Si--H bonds; (b) component B, which is |
| 6015539 |
Fluidized bed process for producing alumina from aluminum hydroxide |
January 18, 2000 |
| A process is disclosed for preparing anhydrous alumina from aluminum hydroxide which comprises feeding aluminum hydroxide into a first suspension preheater and partially dehydrating the aluminum hydroxide with a hot exhaust gas, transporting the partially dehydrated aluminum hydroxid |
| 6010565 |
Foamed material for fireproofing and/or insulating |
January 4, 2000 |
| This invention relates to a foamed material for fireproofing and/or insulating purposes, consisting of 30 to 90 parts by weight of a solution that contains 20 to 70 wt-% Al (H.sub.2 PO.sub.4).sub.3 and 30 to 80 wt-% water, 5 to 55 parts by weight of a mixture that contains 10 to 70 wt-% |
| 5993765 |
Process for the dry desulfurization of a combustion gas |
November 30, 1999 |
| The process for dry desulfuration of a combustion gas includes providing an electrostatic precipitator (12) or an inertia force separator for dedusting; dedusting the combustion gas at temperatures of 100.degree. C. to 180.degree. C. in the electrostatic precipitator or at temperatures o |
| 5981819 |
Process of generating C.sub.3 - and C.sub.4 -olefins from a feed mixture containing C.sub.4 to C |
November 9, 1999 |
| A feed mixture containing C.sub.4 -olefins to C.sub.7 -olefins is evaporated and mixed with steam in a weight ratio of H.sub.2 O:hydrocarbons in the range from 0.5:1 to 3:1. The steam containing feed mixture with an inlet temperature in the range from 380.degree. to 500.degree. C. is |
| 5969044 |
Method of packaging air- and/or moisture-sensitive materials and for introducing the packaged ma |
October 19, 1999 |
| Process for airtight and/or moisture-proof packaging of air-sensitive and/or moisture-sensitive materials for the introduction of the packaged materials in a chemical reactor. Described is a process for the airtight and/or moisture-proof packaging of air-sensitive and/or moisture-sensiti |
| 5964982 |
Method of removing encrustations in evaporation plants |
October 12, 1999 |
| A solution to be evaporated is passed through one or several evaporation stages. In each evaporation stage, the solution is circulated between a heat exchanger and an evaporating vessel, and steam is withdrawn from the evaporating vessel. For removing crusts, the evaporation in the respe |
| 5962576 |
Water-based adhesive |
October 5, 1999 |
| A water-based adhesive is disclosed which contains an aqueous dispersion of one or more phenol resins stabilized by one or more polyacrylates, one or more latexes with one or more halogenated polyolefins and one or more cross-linking agents. The invention also includes a method of primin |
| 5950572 |
Opening that allows a soot blower lance to be introduced through a tube cage |
September 14, 1999 |
| An opening arrangement in which a sliding plate accommodates a soot blower lance to be inserted into a medium-pressure gas-accommodating space through a tube cage in a boiler heated by waste heat. A soot blower box is provided with an elongated slotted hole. A frame is located between th |
| 5934897 |
Reactor for the autothermal conversion of hydrocarbons |
August 10, 1999 |
| A reactor comprises at least one burner, to which hydrocar-bonaceous gas and gas rich in 0.sub.2 are supplied. The hydrocar-bonaceous gas is supplied to the burner through a transfer line at temperatures of 100 to 1300.degree. C. and a pressure in the range from 10 to 70 bar. Adjacent |
| 5904786 |
Method of applying phosphate coatings to metal surfaces |
May 18, 1999 |
| A method is disclosed for applying phosphate coatings to surfaces of zinc, iron, aluminum, and the alloys thereof by wetting with a phosphatizing solution containing divalent cations and phosphate to form a liquid film, and subsequently drying on the liquid film wherein the metal surface |
| 5900221 |
Process of preparing a solution of cesium and rubidium salts |
May 4, 1999 |
| The process for preparing a cesium and rubidium salt-containing solution includes a hydrothermal digestion of an uncalcined pollucite and/or calcined lepidolite particulate having an average particle size up to 0.5 mm with an aqueous solution of Ca(OH).sub.2 in a suspension with a mole |
| 5895520 |
Method of separating noxious substances from exhaust gases |
April 20, 1999 |
| The exhaust gas stream is passed through a bed of a granular adsorbent for separating noxious substances. The bed consists of the mixture of a granular high-carbon material and a granular inert material. The bulk density of the inert material is 0.8 to 3 times the bulk density of the |
| 5849195 |
Composite membrane, process of manufacturing it and process of using it |
December 15, 1998 |
| Disclosed is a composite membrane for removing water from dilute organic or inorganic acids by pervaporation or vapor permeation. The composite membrane in accordance with the invention is of a porous carrier layer, a porous backing layer, and a non-porous separating layer, which consist |
| 5827901 |
Process of producing methanol |
October 27, 1998 |
| Methanol is catalytically produced from a synthesis gas containing hydrogen and carbon oxides on copper-containing catalysts at pressures in the range from 20 to 120 bar and temperatures in the range from 130.degree. to 350.degree. C. The synthesis gas is first of all passed through a fi |
| 5827484 |
Process and apparatus for separating polycyclic and polyhalogenated hydrocarbons from exhaust ga |
October 27, 1998 |
| The apparatus for separating toxic organic substances from a dust-containing exhaust gas of a sintering plant, includes a clay adsorption agent, advantageously consisting of kaolinite, bentonite, illite and/or mixtures thereof, having a mean particle diameter of from 5 to 100 microme |
