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5422085 Catalytic conversion of internal combustion engine exhaust gases
ParentsALERT
The invention provides an alkylene glycol, preferably propylene glycol, anti-corrosive antifreeze concentrate composed of the glycol and small but effective amounts of borate, sebacate, molybdate, mercaptobenzothiazole, nitrate, tolyltriazole and silicate. The concentrate is suitably combined with water to form an internal combustion engine coolant which meets all ASTM testing criteria.
5422085 CATALYTIC CONVERSION OF INTERNAL COMBUSTION ENGINE EXHAUST GASES Bell James A E; Bradford Raymond A CANADA Assigned to Into Limited
Oakville,
5422032 METHODS AND COMPOSITIONS FOR WASTE TREATMENT OF ORGANIC STRIPPERS CONTAINING METALS Brown James A Layton, UT, UNITED STATES Assigned to Viktron Limited Partnership Compositions for use in the treatment of complex waste liquids are disclosed. The complex waste liquids may include organics, organic polymers, and heavy metals. The composition is a solution comprising, in relative percentages, from about 2 moles to about 3 moles MeIII, from about 1 mole to about 3 moles MeII, and from about 4 moles to about 5 moles monovalent or divalent anionic groups. In such a composition Me111is selected from the group consisting of Fe+3 and A1+3; whereas Me11 is selected from the group consisting of Mg+2 and Ca+2. The anionic groups are generally selected from the group consisting of Cl-, N03-, and SO42-.
5422051 METHOD FOR RECYCLING PLASTIC INTO CEMENTITIOUS BUILDING PRODUCTS Sawyers John P Lubbock, TX, 794 16, UNITED STATES Plastic materials are collected from discarded articles or manufacturing stock, reduced to particles, and mixed with feedstock for manufacturing building materials, such as concrete. Particle maximum dimensions are preferably in the range of five to ten millimetres. The recycled plastic includes up to twenty-five per cent, by volume, of the building material. This provides economical and ecologically sound disposal of otherwise waste plastic, and improves the building material into which it has been incorporated. Cost of the building material is reduced. A cementitious concrete made from recycled plastics, Portland cement, and sand/gravel fillers performs to standards of concretes made without plastics. Heterogeneous plastic materials may be used in this concrete, removing the previously time and resource intensive step of sorting and melting down constituent plastics from each other in the waste stream.
A technique for substantially reducing nitrogen oxide (NOx) emissions in internal combustion engine exhaust gases. The NOx laden stream is contacted with an As catalytic material supported on a metal plated Ni foam substrate in the presence of a reducing agent. The NOx is reduced to nitrogen, water and/or carbon, and carbon dioxide.
5422091 PRODUCTION OF CONCENTRATED AQUEOUS SOLUTIONS OF FERRIC CHLORIDE Clair Rene; Gallet Alain Martigues, FRANCE Assigned to Atochem Concentrated aqueous solutions of ferric chloride, directly useful as flocculating agents in a variety of water treatments, are prepared by (a) digesting iron with a dilute aqueous solution of hydrochloric acid until such acid has essentially been consumed and thereby producing an aqueous solution of ferrous chloride; (b) reacting chlorine with such aqueous solution of ferrous chloride, in the presence of a recycled aqueous solution of ferric chloride; (c) decompressing the step (b) reaction product solution to vaporize water therefrom, thereby concentrating same; and (d) recycling a fraction of the decompressed liquid phase to step (b) and recovering remaining fraction as fmal product aqueous solution of ferric chloride.
5423174 ANTI-ICING SYSTEM FOR A GAS TURBINE ENGINE Mouton Pierre C Grigny, FRANCE Assigned to Societe National d’Etude et de Construction de Moteurs d’Aviation (SNECMA) An anti-icing system to prevent the formation of ice on, or to remove ice from selected portions of a gas turbine engine is disclosed that is not directly dependent upon the mode or speed of operation of the gas turbine engine. The system has a heat exchanger into which flows a tapped portion of
J. Cleaner Prod. Volume 3 Number
4
243
The invention provides an alkylene glycol, preferably propylene glycol, anti-corrosive antifreeze concentrate composed of the glycol and small but effective amounts of borate, sebacate, molybdate, mercaptobenzothiazole, nitrate, tolyltriazole and silicate. The concentrate is suitably combined with water to form an internal combustion engine coolant which meets all ASTM testing criteria.
5422085 CATALYTIC CONVERSION OF INTERNAL COMBUSTION ENGINE EXHAUST GASES Bell James A E; Bradford Raymond A CANADA Assigned to Into Limited
Oakville,
5422032 METHODS AND COMPOSITIONS FOR WASTE TREATMENT OF ORGANIC STRIPPERS CONTAINING METALS Brown James A Layton, UT, UNITED STATES Assigned to Viktron Limited Partnership Compositions for use in the treatment of complex waste liquids are disclosed. The complex waste liquids may include organics, organic polymers, and heavy metals. The composition is a solution comprising, in relative percentages, from about 2 moles to about 3 moles MeIII, from about 1 mole to about 3 moles MeII, and from about 4 moles to about 5 moles monovalent or divalent anionic groups. In such a composition Me111is selected from the group consisting of Fe+3 and A1+3; whereas Me11 is selected from the group consisting of Mg+2 and Ca+2. The anionic groups are generally selected from the group consisting of Cl-, N03-, and SO42-.
5422051 METHOD FOR RECYCLING PLASTIC INTO CEMENTITIOUS BUILDING PRODUCTS Sawyers John P Lubbock, TX, 794 16, UNITED STATES Plastic materials are collected from discarded articles or manufacturing stock, reduced to particles, and mixed with feedstock for manufacturing building materials, such as concrete. Particle maximum dimensions are preferably in the range of five to ten millimetres. The recycled plastic includes up to twenty-five per cent, by volume, of the building material. This provides economical and ecologically sound disposal of otherwise waste plastic, and improves the building material into which it has been incorporated. Cost of the building material is reduced. A cementitious concrete made from recycled plastics, Portland cement, and sand/gravel fillers performs to standards of concretes made without plastics. Heterogeneous plastic materials may be used in this concrete, removing the previously time and resource intensive step of sorting and melting down constituent plastics from each other in the waste stream.
A technique for substantially reducing nitrogen oxide (NOx) emissions in internal combustion engine exhaust gases. The NOx laden stream is contacted with an As catalytic material supported on a metal plated Ni foam substrate in the presence of a reducing agent. The NOx is reduced to nitrogen, water and/or carbon, and carbon dioxide.
5422091 PRODUCTION OF CONCENTRATED AQUEOUS SOLUTIONS OF FERRIC CHLORIDE Clair Rene; Gallet Alain Martigues, FRANCE Assigned to Atochem Concentrated aqueous solutions of ferric chloride, directly useful as flocculating agents in a variety of water treatments, are prepared by (a) digesting iron with a dilute aqueous solution of hydrochloric acid until such acid has essentially been consumed and thereby producing an aqueous solution of ferrous chloride; (b) reacting chlorine with such aqueous solution of ferrous chloride, in the presence of a recycled aqueous solution of ferric chloride; (c) decompressing the step (b) reaction product solution to vaporize water therefrom, thereby concentrating same; and (d) recycling a fraction of the decompressed liquid phase to step (b) and recovering remaining fraction as fmal product aqueous solution of ferric chloride.
5423174 ANTI-ICING SYSTEM FOR A GAS TURBINE ENGINE Mouton Pierre C Grigny, FRANCE Assigned to Societe National d’Etude et de Construction de Moteurs d’Aviation (SNECMA) An anti-icing system to prevent the formation of ice on, or to remove ice from selected portions of a gas turbine engine is disclosed that is not directly dependent upon the mode or speed of operation of the gas turbine engine. The system has a heat exchanger into which flows a tapped portion of
J. Cleaner Prod. Volume 3 Number
4
243