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catalyst wall-flow monolith adsorber
PatentsALERT
used in the invention can be prepared from raw chemicals which are nontoxic and do not cause environmental pollution. Since the process does not require immersing or dipping, it allows metal to be deposited either on the entire surface or on a portion of a surface of the substrate without any restriction of the dimensions of the substrate. In one embodiment, the substrates may be glass, silicates or ceramics and may be sensitized using a solution which comprises about 25-175 g/l SnC12, about 35-l 10 g/l of about 36% HCl, and about 50-100 g/l of about 95% ethanol. The sensitizing solution may also contain an indicator such as thymol blue.
5492626 METHOD FOR RECYCLING A PAINT RECOVERY EFFLUENT Uenoyama Kazuo; Kajino Tetsuro; Okai Toshihiro; Shibata Takayuki; Koike Toshiya Osaka, JAPAN assigned to Nippon Paint Co Ltd The object of the present invention is reuse of the filtrate of a paint mist-cleaning water mixture as cleaning water without reduction in concentration efficiency. According to the present invention, a waste paint-cleaning water mixture 2 available on trapping a water-based paint mist in cleaning water 1 is concentrated to recover the paint and the aqueous phase is recycled as cleaning water. In this system, the cleaning water prepared by reusing the aqueous phase is adjusted to an acid value of not greater than 10 and a pH value of 7.0 to 9.0. Controlling the amount of low molecular acid components in the aqueous phase in this manner prevents an abnormal viscosity increase in the filtration-concentration of the waste paint-cleaning water mixture.
5492643 ENVIRONMENTALLY SAFER REPLACEMENT REFRIGERANT FOR FREON 12-BASED REFRIGERATION SYSTEMS Weber Harrison M Baton Rouge, LA, UNITED STATES assigned to Rue110 Kenneth B An apparatus and method and refrigerant wherein ozone layer-damaging dichlorodifluoromethane is substituted with a mix of less environmentally damaging refrigerants chlorodifluoroethane and tetrafluoroethane in dichlorodifluoromethane-based air-cooling systems. While less environmentally damaging than dichlorodifluoromethane, the substitute refrigerant has a temperature-pressure relationship similar to that of
dichlorodifluoromethane, making the substitute refrigerant suitable for use with dichlorodifluoromethane-based air-cooling systems. The refrigerant includes a lubricant which is compatible with dichlorodifluoromethane, chlorodifluoroethane and tetrafluoroethane.
5492657 METHOD FOR PROCESSING RUBBER PRODUCTS Danschikov Eugene; Luchnik lgor N; Ryazanov Alexander V; Chiuko Sergei V Troitsk, Moscow Region, RUSSIA An apparatus and method for energy efficient recycling of reinforced rubber products, such as tires, conveyor belts, and the like, wherein the rubber is reinforced by cords or belts of steel, nylon, fabric and the like. The presence of the reinforcement materials poses not only a necessity to separate the rubber therefrom but also poses a problem of disposing of the reinforcement materials. By placing the reinforced rubber in an environment of ozone (03) and applying a force to the rubber, the rubber breaks down leaving the reinforcement materials for ready disposal. The method and apparatus thereby provide an energy efficient, cost-effective, and environmentally safe and acceptable technique for recycling reinforced rubber products.
5492662 PROCESSFOR FORMING MULTIPLE DENSITY BODY FROM FIBROUS POLYMERIC MATERIAL AND VEHICLE SEAT COMPONENT FORMED THEREBY Kargol James; Haupt Gregary A UNITED STATES
Farmington Hills, MI,
An improved method of making a more comfortable and easily recyclable body for a vehicle seat component using thermoplastic polymeric fibers is described. This method produces a body of thermoplastic polymeric fibers consisting of zones of different densities.
5492679 ZEOLITEICATALYST WALL-FLOW MONOLITH ADSORBER Ament Frank; Singer David A Troy, MI, UNITED STATES assigned to General Motors Corporation
J. Cleaner
Prod.
Volume
4, Number
1
79
PatentsALERT
An exhaust system for an internal combustion engine having a primary catalytic converter located downstream of the engine and a hydrocarbon adsorber located downstream of the primary converter. The adsorber comprises a ceramic wall-flow substrate having a zeolite coating, having the ability to selectively adsorb hydrocarbon molecules from exhaust gas,applied to the interior surfaces of the inlet passages of the substrate and a catalytic coating applied to the adjacent surfaces of the walls of the outlet passages of the substrate. The catalyst preferably has a light-off temperature below the desorption temperature of the zeolite. In operation, hydrocarbon is adsorbed by the zeolite following a cold engine start and is held until the zeolite reaches its desorption temperature at which time the hydrocarbon is released and passes through the porous walled substrate for conversion by the catalyst.
5492682 HYDROGEN PURIFICATION Succi Marco; Solcia Carolin; Lorimer D’Arcy ITALY assigned to SAES Getters SpA
Milan,
An improved apparatus and process for the removal of gaseous impurities from an impure gas stream of hydrogen contaminated with carbon monoxide, and with one or more additional impurities such as carbon dioxide, oxygen, nitrogen, water, methane. The impure gas stream is first contacted with elemental nickel in a first reaction zone under nickel-carbonyl forming conditions thereby converting substantially all the carbon monoxide to nickel carbonyl, thereby producing a partially purified gas stream. The partially purified gas stream is then contacted with Ti2Ni or certain manganese-containing alloys in a second reaction zone to produce a fully purified gas stream.
5492683 REGENERABLE SUPPORTED AMINE-POLYOL SORBENT Birbara Philip J; Nalette Timothy A Windsor Locks, CT, UNITED STATES assigned to United Technologies Corporation The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.
80
J. Cleaner
Prod. Volume
4, Number
1
5492721 METHOD FOR PRODUCING ENAMELLED WIRES USING FUSIBLE RESINS Berthold Herbert; Pichler Hans-Peter Deutschlandsberg, AUSTRIA assigned to MAG Maschinen und Apparatebau Gesellschaft mbH Enamelled wire is produced using almost solvent-free fusible resins. Molten resin is pumped from a supply reservoir against the direction of movement of the wire with part of the resin coating the wire. The raw wire is preheated to a temperature near the melting temperature of the molten resin. Excess resin is returned to the supply reservoir after the resin coating the wire has been calibrated to a predetermined circumferential dimension. The resin coating the wire is then hardened. The coating apparatus includes a raw wire guide, a demineralized water bath, an annealing furnace having a protective steam atmostphere, a cooling water bath, a wire preheater, an enameling stove, a heated resin reservoir, a resin applicator and a winding-on machine. The resin coating is applied under closed system conditions, thereby substantially reducing emissions.
5493047 METHOD OF PREPARING OPTICALLY ACTIVE CYANOHYDRIN DERIVATIVES Brussee Johannes; Van Der Gen Ame; Warmerdam Erwin G J C; Kruse Chris Weesp, NETHERLANDS assigned to Duphar International Research B V The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine. The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.
5493055 PROCESSFOR THE MANUFACTURE OF P-PHENETIDINE Kalo Jacob Akko, ISRAEL assigned to Tambour Ltd A process for the manufacture of para-phenetidine is described. The process comprises the following steps: (a)
used in the invention can be prepared from raw chemicals which are nontoxic and do not cause environmental pollution. Since the process does not require immersing or dipping, it allows metal to be deposited either on the entire surface or on a portion of a surface of the substrate without any restriction of the dimensions of the substrate. In one embodiment, the substrates may be glass, silicates or ceramics and may be sensitized using a solution which comprises about 25-175 g/l SnC12, about 35-l 10 g/l of about 36% HCl, and about 50-100 g/l of about 95% ethanol. The sensitizing solution may also contain an indicator such as thymol blue.
5492626 METHOD FOR RECYCLING A PAINT RECOVERY EFFLUENT Uenoyama Kazuo; Kajino Tetsuro; Okai Toshihiro; Shibata Takayuki; Koike Toshiya Osaka, JAPAN assigned to Nippon Paint Co Ltd The object of the present invention is reuse of the filtrate of a paint mist-cleaning water mixture as cleaning water without reduction in concentration efficiency. According to the present invention, a waste paint-cleaning water mixture 2 available on trapping a water-based paint mist in cleaning water 1 is concentrated to recover the paint and the aqueous phase is recycled as cleaning water. In this system, the cleaning water prepared by reusing the aqueous phase is adjusted to an acid value of not greater than 10 and a pH value of 7.0 to 9.0. Controlling the amount of low molecular acid components in the aqueous phase in this manner prevents an abnormal viscosity increase in the filtration-concentration of the waste paint-cleaning water mixture.
5492643 ENVIRONMENTALLY SAFER REPLACEMENT REFRIGERANT FOR FREON 12-BASED REFRIGERATION SYSTEMS Weber Harrison M Baton Rouge, LA, UNITED STATES assigned to Rue110 Kenneth B An apparatus and method and refrigerant wherein ozone layer-damaging dichlorodifluoromethane is substituted with a mix of less environmentally damaging refrigerants chlorodifluoroethane and tetrafluoroethane in dichlorodifluoromethane-based air-cooling systems. While less environmentally damaging than dichlorodifluoromethane, the substitute refrigerant has a temperature-pressure relationship similar to that of
dichlorodifluoromethane, making the substitute refrigerant suitable for use with dichlorodifluoromethane-based air-cooling systems. The refrigerant includes a lubricant which is compatible with dichlorodifluoromethane, chlorodifluoroethane and tetrafluoroethane.
5492657 METHOD FOR PROCESSING RUBBER PRODUCTS Danschikov Eugene; Luchnik lgor N; Ryazanov Alexander V; Chiuko Sergei V Troitsk, Moscow Region, RUSSIA An apparatus and method for energy efficient recycling of reinforced rubber products, such as tires, conveyor belts, and the like, wherein the rubber is reinforced by cords or belts of steel, nylon, fabric and the like. The presence of the reinforcement materials poses not only a necessity to separate the rubber therefrom but also poses a problem of disposing of the reinforcement materials. By placing the reinforced rubber in an environment of ozone (03) and applying a force to the rubber, the rubber breaks down leaving the reinforcement materials for ready disposal. The method and apparatus thereby provide an energy efficient, cost-effective, and environmentally safe and acceptable technique for recycling reinforced rubber products.
5492662 PROCESSFOR FORMING MULTIPLE DENSITY BODY FROM FIBROUS POLYMERIC MATERIAL AND VEHICLE SEAT COMPONENT FORMED THEREBY Kargol James; Haupt Gregary A UNITED STATES
Farmington Hills, MI,
An improved method of making a more comfortable and easily recyclable body for a vehicle seat component using thermoplastic polymeric fibers is described. This method produces a body of thermoplastic polymeric fibers consisting of zones of different densities.
5492679 ZEOLITEICATALYST WALL-FLOW MONOLITH ADSORBER Ament Frank; Singer David A Troy, MI, UNITED STATES assigned to General Motors Corporation
J. Cleaner
Prod.
Volume
4, Number
1
79
PatentsALERT
An exhaust system for an internal combustion engine having a primary catalytic converter located downstream of the engine and a hydrocarbon adsorber located downstream of the primary converter. The adsorber comprises a ceramic wall-flow substrate having a zeolite coating, having the ability to selectively adsorb hydrocarbon molecules from exhaust gas,applied to the interior surfaces of the inlet passages of the substrate and a catalytic coating applied to the adjacent surfaces of the walls of the outlet passages of the substrate. The catalyst preferably has a light-off temperature below the desorption temperature of the zeolite. In operation, hydrocarbon is adsorbed by the zeolite following a cold engine start and is held until the zeolite reaches its desorption temperature at which time the hydrocarbon is released and passes through the porous walled substrate for conversion by the catalyst.
5492682 HYDROGEN PURIFICATION Succi Marco; Solcia Carolin; Lorimer D’Arcy ITALY assigned to SAES Getters SpA
Milan,
An improved apparatus and process for the removal of gaseous impurities from an impure gas stream of hydrogen contaminated with carbon monoxide, and with one or more additional impurities such as carbon dioxide, oxygen, nitrogen, water, methane. The impure gas stream is first contacted with elemental nickel in a first reaction zone under nickel-carbonyl forming conditions thereby converting substantially all the carbon monoxide to nickel carbonyl, thereby producing a partially purified gas stream. The partially purified gas stream is then contacted with Ti2Ni or certain manganese-containing alloys in a second reaction zone to produce a fully purified gas stream.
5492683 REGENERABLE SUPPORTED AMINE-POLYOL SORBENT Birbara Philip J; Nalette Timothy A Windsor Locks, CT, UNITED STATES assigned to United Technologies Corporation The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.
80
J. Cleaner
Prod. Volume
4, Number
1
5492721 METHOD FOR PRODUCING ENAMELLED WIRES USING FUSIBLE RESINS Berthold Herbert; Pichler Hans-Peter Deutschlandsberg, AUSTRIA assigned to MAG Maschinen und Apparatebau Gesellschaft mbH Enamelled wire is produced using almost solvent-free fusible resins. Molten resin is pumped from a supply reservoir against the direction of movement of the wire with part of the resin coating the wire. The raw wire is preheated to a temperature near the melting temperature of the molten resin. Excess resin is returned to the supply reservoir after the resin coating the wire has been calibrated to a predetermined circumferential dimension. The resin coating the wire is then hardened. The coating apparatus includes a raw wire guide, a demineralized water bath, an annealing furnace having a protective steam atmostphere, a cooling water bath, a wire preheater, an enameling stove, a heated resin reservoir, a resin applicator and a winding-on machine. The resin coating is applied under closed system conditions, thereby substantially reducing emissions.
5493047 METHOD OF PREPARING OPTICALLY ACTIVE CYANOHYDRIN DERIVATIVES Brussee Johannes; Van Der Gen Ame; Warmerdam Erwin G J C; Kruse Chris Weesp, NETHERLANDS assigned to Duphar International Research B V The invention relates to a method of preparing an optically active cyanohydrin carboxylic acid ester from an optically active cyanohydrin of opposite configuration, wherein said starting cyanohydrin is converted with a carboxylic acid in the presence of a dialkyl azodicarboxylate and a triarylphosphine. The invention also relates to a method of preparing an optically active cyanohydrin of opposite configuration by a subsequent solvolysis of the ester obtained under conservation of the configuration.
5493055 PROCESSFOR THE MANUFACTURE OF P-PHENETIDINE Kalo Jacob Akko, ISRAEL assigned to Tambour Ltd A process for the manufacture of para-phenetidine is described. The process comprises the following steps: (a)