David Eugene Ross
Engineers at Escobita Ave, Palo Alto, CA

5409617, Apr 25, 1995

Jul 13, 1993

8/091617

David S. Ross - Palo Alto CA
Indira Jayaweera - Fremont CA
Lien Nguyen - San Jose CA
Georgina P. Hum - Menlo Park CA
Werner R. Haag - San Jose CA

SRI International - Menlo Park CA

C02F 102, C02F 172

210762

The present invention relates to a process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds to species which are environmentally acceptable, or are amendable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or slurry of ordnance waste material into a reaction zone capable of withstanding the temperatures and pressures of hydrothermal decomposition; (b) reacting the waste material in the reaction zone with an aqueous composition comprising one or more alkali or alkaline earth metal silicates, borates, phosphates, biphosphates, or trisubstituted-phosphates, at between 200. degree. C. and 500. degree. C. and at a pressure between 10 and 400 atmospheres for between about 0. 01 and 10 minutes; (c) producing compounds which are environmentally acceptable or are amenable to further degradation by conventional disposal systems; and (d) optionally degrading further the compounds of step (e) by reaction in a conventional disposal system.

5837149, Nov 17, 1998

Mar 22, 1996

8/621746

David S. Ross - Palo Alto CA
Indira Jayaweera - Fremont CA
Roald N. Leif - San Francisco CA

SRI International - Menlo Park CA

C02F 172

210759

This invention relates to a process for the decomposition of material selected from the group consisting of organic compounds, inorganic compounds, or combinations thereof to compounds which are environmentally acceptable, or are amenable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or an aqueous slurry of material into a reaction zone capable of withstanding the temperatures and pressures of decomposition of the material; (b) contacting the material in the reaction zone with aqueous sodium carbonate as a reactant in an amount effective to decompose the material under hot water or supercritical water oxidation conditions of between about 300. degree. and 600. degree. C. and a pressure of between about 20 and 400 atmospheres for between 0. 1 and 120 min, wherein the sodium carbonate at the reaction conditions is present at about 10% or less as a water soluble salt as compared to the solubility of the salt at ambient conditions, wherein the process occurs in the presence of a gaseous oxidant present in an amount of between about 0.

5709800, Jan 20, 1998

Jan 16, 1996

8/652920

David S. Ross - Palo Alto CA
Indira Jayaweera - Fremont CA

SRI International - Menlo Park CA

C02F 102, C02F 172

210762

The present invention relates to a process for the disposal of waste or the conversion of hydrothermally labile chemical groups and compounds to species which are environmentally acceptable, or are amendable to further degradation by conventional disposal systems to produce environmentally acceptable products, which process comprises: (a) conveying an aqueous solution or slurry of the waste material into a reaction zone capable of withstanding the temperatures and pressures of hydrothermal decomposition; (b) reacting the waste material in the reaction zone with an aqueous composition comprising catalyst selected from silica or one or more alkali metal silicates, borates, phosphates, biphosphates, or trisubstituted-phosphates, or comprising as promoting reagent independently selected from one or more alkali metal nitrites, alkaline earth metal nitrites or combinations thereof at between 200. degree. C. and 500. degree. C. and at a pressure between 10 and 400 atmospheres for between about 0. 01 and 10 minutes; (c) producing compounds which are environmentally acceptable or are amenable to further degradation by conventional disposal systems; and (d) optionally degrading further the compounds of step (c) by reaction in a conventional disposal system such as biological sewage treatment.

4642396, Feb 10, 1987

Aug 7, 1984

6/638436

Richard V. C. Carr - Allentown PA
Bernard A. Toseland - Allentown PA
David S. Ross - Palo Alto CA

Air Products and Chemicals, Inc. - Allentown PA

C07C 7910, C07B 4302

568934

This invention pertains to a process for extracting a nitroaromatic composition from a nitration medium containing nitric acid, water, and nitroaromatic. The process comprises contacting the nitration medium with nitric oxide under conditions such that the nitric oxide will react with the nitric acid to form nitrogen dioxide and water. Gaseous nitrogen dioxide is removed from the reaction medium and accordingly, the dissolved nitroaromatic present in the nitration medium separates to form an organic phase which then can be removed by decantation. Typically, one mole of nitric oxide is added to the nitration medium for every two moles of nitric acid present in said medium. Reaction conditions normally are from about 0. degree. to 90. degree. C.

4447662, May 8, 1984

Jun 10, 1982

6/386856

David S. Ross - Palo Alto CA
Robert M. Johnson - San Mateo CA
Ripudaman Malhotra - Menlo Park CA

Air Products and Chemicals, Inc. - Allentown PA

C07C 7910

568939

Aromatic hydrocarbons are nitrated by reacting the aromatic hydrocarbon in a nitrogen tetroxide-containing liquid reaction medium, in the presence of a beta-dicarbonyl compound having a "W" configuration with a carbonyl group at each apex of the "W", preferably at a pressure and temperature sufficient to maintain the nitrogen tetroxide in the liquid state. Addition of an inert organic co-solvent to the liquid nitrogen tetroxide for the metal acetylacetonate promoted nitration of benzene essentially eliminates the production of dinitrobenzenes.

4745232, May 17, 1988

Jan 7, 1987

7/001243

Robert J. Schmitt - Mountain View CA
David S. Ross - Palo Alto CA
James F. Wolfe - Palo Alto CA

SRI International - Menlo Park CA

C07C 7928

568712

A method of nitrating resorcinol which is selective for the production of the 4,6-dinitro resorcinal isomer. A resorcinol-based starting material is admixed with a nitrating solution from which substantially all nitrogen dioxide and nitrous has been removed. The nitrating solution contains white fuming nitric acid, a nitrosonium ion control agent such as urea, and, optionally, concentrated sulfuric acid. The 4,6-dinitroresorcinal isomer is provided in yields of about 65-85% with minimal production of undesirable side products.

6010632, Jan 4, 2000

Apr 29, 1998

9/069892

David S. Ross - Palo Alto CA
Indira Jayaweera - Fremont CA
David C. Bomberger - Belmont CA
Roald N. Leif - San Francisco CA

SRI International - Menlo Park CA

C02F 172

210759

A process for hot or supercritical water oxidative decomposition of wastes, particularly halogenated organic compounds, is described. The process employs a heterogeneous reagent which accelerates the decomposition and is effective to neutralize acidic byproducts. The reagent is maintained in suspension throughout the reaction by operating at conditions of temperature and pressure at which the heterogeneous reagent is largely or fully insoluble in water, and preferably at which liquid water is not present. Production of potentially corrosive brine is also minimized by operating at conditions under which sodium chloride is insoluble.

4417080, Nov 22, 1983

Jun 10, 1982

6/386857

David S. Ross - Palo Alto CA
Robert M. Johnson - San Mateo CA
Ripudaman Malhotra - Menlo Park CA

Air Products and Chemicals, Inc. - Allentown PA

C07C 7910

568939

Aromatic hydrocarbons are nitrated by reacting the aromatic hydrocarbon in a nitrogen tetroxide-containing liquid reaction medium, in the presence of a beta-dicarbonyl compound having a "W" configuration with a carbonyl group at each apex of the "W", such as a metal acetylacetonate, preferably at a pressure and temperature sufficient to maintain the nitrogen tetroxide in the liquid state. Addition of an inert organic co-solvent to the liquid nitrogen tetroxide for the metal acetylacetonate promoted nitration of benzene essentially eliminates the production of dinitrobenzenes.

4298450, Nov 3, 1981

Dec 5, 1977

5/857717

David S. Ross - Palo Alto CA
James E. Blessing - Menlo Park CA

The United States of America as represented by the United States
Department of Energy - Washington DC

C10G 100, C10G 106

208 8LE

A method for the hydroconversion of coal by solvent treatment at elevated temperatures and pressure wherein an alcohol having an. alpha. -hydrogen atom, particularly a secondary alcohol such as isopropanol, is utilized as a hydrogen donor solvent. In a particular embodiment, a base capable of providing a catalytically effective amount of the corresponding alcoholate anion under the solvent treatment conditions is added to catalyze the alcohol-coal reaction.

5198204, Mar 30, 1993

Jun 18, 1990

7/539647

Jeffrey C. Bottaro - Mountain View CA
Robert J. Schmitt - Redwood City CA
Paul E. Penwell - Menlo Park CA
David S. Ross - Palo Alto CA

SRI International - Menlo Park CA

C01B 2120, C07C24100, C07C24300

423385

A method is disclosed for forming a N,N-dinitramide salt having the formula MN(NO. sub. 2). sub. 2 where M is a cation selected form the class consisting of a metal ion and a nitrogen-containing ion, which comprises contacting a carbamate with a nitrating agent to form an acidic dinitramide intermediate reaction product, and neutralizing the acidic dinitramide with a compound selected from the class consisting of ammonia (NH. sub. 3), hydrazine (N. sub. 2 H. sub. 4), a primary amine having the formula RNH. sub. 2, a secondary amine having the formula RR'NH, and a salt having the formula AX; where R and R' are the same or different 1-6 carbon alkyls, A is a metal ion or a nitrogen-containing ion, and X is an anion selected from the class consisting of fluoride, chloride, hydroxyl, carbonate, alkoxide, and carboxyl anion, to form the corresponding dinitramide salt.