Union Carbide Corporation

Union Carbide Chemicals & Plastics Technology Corporation

Daniel C Garska

Charles H Carder

Richard Duane Jenkins

Mark Joseph McGuiness

Edith M Flanigen

Brent M Lok

Cyril B Tellis

James S Ritscher

A glycol- and/or glycerin-based 'universal' aircraft fluid (i.e., usable as any of Type I, II, III, or IV fluids), and having good resistance to degradation of viscosity and other critical properties caused by exposure to heat and/or shear, is disclosed. The fluid may optionally be prepared as a concentrate, and thereafter significantly diluted in the field for diverse uses. The improved performance is achieved by neutralizing a latex of a hydrophobe-containing, polymeric thickener with a base, preferably an alkali metal hydroxide, and preferably in combination with a weak base, such as a salt of a weak acid, and a surfactant which associates with the thickener.

Process of making aircraft deicing/anti-icing fluids thickened by

Aircraft deicing/anti-icing fluids thickened by associative polymers

By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a catalyst comprising silicoaluminophosphates (SAPO-5, SAPO-11 etc.).

Conversion of certain hydrocarbons using silicoaluminophosphate catalysts

By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a catalyst comprising the aluminophosphates of U.S. Pat. No. 4,310,440.

Conversion of effluent hydrocarbons streams using aluminophosphate

By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a catalyst essentially comprising a calcined TEA-silicate.

Conversion of certain hydrocarbons using calcined TEA-silicate catalyst

By-product effluent streams from pyrolytic hydrocarbon cracking processes, containing monoolefins and diolefins, are treated to hydrogenate the olefins and to aromatize the aliphatics, with a catalyst essentially comprising divalent-copper-containing ZSM-5 type molecular sieve catalyst.

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St. Albans, WV, United States of America

Daniel C Garska