Borg-warner Chemicals, Inc.

Chemical Waste Management, Inc.

Borgwarner Inc.

The United States of America As Represented by the Department of Energy

Yuval Halpern

Donna M Mott

Arthur J Friedman

Brian A Pikelny

Ron H Niswander

Lee Cherney

Peter S Daley

Clifton T Fleenor

Roger K Nibert

Donald D Hall, Jr

A non-catalytic process for producing esters, the process comprising reacting an ammonium salt of a carboxylic acid with an alcohol and removing ammonia from the reaction mixture. Selectivities for the desired ester product can exceed 95 percent.

Direct esterification of ammonium salts of carboxylic acids

An improved method for detoxifying waste materials contaminated with halogenated aromatic hydrocarbons is disclosed. The method provides for detoxification of halogenated aromatic compounds by electrophilic aromatic substitution. The method also provides for the dehalogenation of the lower congeners of such halogenated aromatic compounds, as a result of chemical activation via electrophilic aromatic substitution, followed by nucleophilic aromatic dehalogenation. In addition, the method provides for the more complete dehalogenation of mixtures of halogenated aromatic compounds that contain both higher and lower congeners by increasing the efficiency of dehalogenation of the lower congeners.

Method of treating toxic aromatic halogen-containing compounds by

Metal complexes and especially nickel EDTA is decomposed by adding an oxidizing agent to an aqueous solution containing metal complexes to define an oxidizable aqueous solution. The oxidizable aqueous solution is then exposed to a source of ultraviolet radiation in the range of from 185-300 nanometers for a period of time sufficient to destroy the complex portion of the metal complex. The remaining metal is recovered.

Process for destruction of metal complexes by ultraviolet irradiation

An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost. The economic advantages of the present invention arise from the use of lower temperatures and/or smaller quantities of reagents, which in turn are made possible by the discovery of a surprisingly superior reagent, 2-methoxyethanol.

Process for dehalogenation of contaminated waste materials

An improved method for detoxifying waste materials contaminated with halogenated hydrocarbons is disclosed. The method achieves dehalogenation of such halogenated hydrocarbons in a manner as efficient as previous methods, but at a considerably lower cost. The economic advantages of the present invention arise from the use of lower temperatures and/or smaller quantities of reagents, which in turn is made possible by the discovery of a surprisingly superior reagent, 2-methoxyethanol, and superior catalysts, the crown ethers, which allow reagents other than 2-methoxyethanol to function very efficiently in dehalogenation reactions.

A process for removing metal salts from an H.sub.4 EDTA precipitate by esterification with an esterification reagent to produce an esterification mixture comprising a solid metal salt an EDTA ester and thereafter separating the solid metal salt from the esterification mixture.

Process for cleaning trace metals from EDTA

A composition is provided which comprises a carrier medium and a spirodiphosphate described by the general formula: ##STR1## wherein X and X' are independently selected from the group consisting of oxygen and sulfur; and Z and Z' are independently selected from the group consisting of organic moieties attached to phosphorus through one of oxygen, sulfur, nitrogen and carbon.

Spirodiphosphate-containing working substances

A composition, useful as an extreme pressure additive is provided wherein the composition comprises an aminocarboxylic acid-terminated polyoxyalkylene, wherein the polyoxyalkylene has at least seven oxyalkylene units.

Aminocarboxylic acid-terminated polyoxy-alkylenes and process for the

A spirodiphosphoamidate-type composition is provided, wherein the composition is represented by the general formula: ##STR1## wherein A and A' are independently selected from the group consisting of oxygen and sulfur; R.sup.1 and R.sup.3 are independently selected from the group consisting of hydrogen, aliphatic, oxyaliphatic, polyoxyaliphatic, cycloaliphatic and aromatic moieties; and R.sup.2 and R.sup.4 are independently selected from the group consisting of C.sub.13 and larger aliphatic, oxyaliphatic, polyoxyaliphatic and aliphatic substituted aryl groups.

Spirodiphosphoamidate compounds

A thermoplastic composition is provided which comprises a polyimide with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.

Polyimide thermoplastic protected from discoloration during thermal

An extreme pressure composition is provided wherein the composition comprises a carrier medium and an aminocarboxylic acid-terminated polyoxyalkylene having at least four oxyalkylene units.

Aminocarboxylic acid-terminated polyoxyalkylene containing extreme

A thermoplastic composition is provided which comprises a polyphenylene ether such as the copolymer of 2,6-dimethylphenol with 2,3,6-trimethylphenol, with an effective amount of an alpha-hydroxyketone such as benzoin to prevent discoloration on thermal processing.

Polyphenylene ether thermoplastic protected from discoloration during

A process for preparing polyvalent metal and amine salts of the indicated phosphorinane (an acid). The salts are isolated as such and are effective, in small proportions, to impart flame-retardant properties to polymers, especially to polypropylene and to styrenic polymers such as polystyrene, ABS and MBS.

Salts of 5,5-bis-(bromomethyl)-2-hydroxy-2-oxo-1,3,2-dioxaphosphorinane

The di-ester of beta-pentabromophenoxyethanol and succinic acid, bis(beta-pentabromophenoxyethyl) succinate, is prepared by mono-ethoxylating pentabromophenol with ethylene oxide, then esterifying the resulting pentabromophenoxyethanol with succinic acid. The di-ester is a flame retardant for ABS.

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Skokie, IL, United States of America

Yuval Halpern