Monsanto Company

Chemical Waste Management, Inc.

George A Mortimer

James F Grutsch

Richard D Chapman

John C Richardson

Donald A Holmer

Chris A Pelezo

A process is presented for the treatment of wastewater containing non-volatile pollutants and volatile chemically oxidizable organic and inorganic pollutants. The process combines efficient evaporation to concentrate the non-volatile compounds and a catalytic oxidation reaction to convert the volatilized organic and inorganic pollutants. A condensate product may be obtained by treating wastewater according to the inventive process that is of distilled water quality and substantially free of minerals and organics.

Process for the catalytic treatment of wastewater

Fiber-forming 6T/6I terpolyamides having melting points below 320.degree. C., glass transition temperatures above 115.degree. C. and good thermal stablities are provided. The terpolyamides may be prepared by melt polymerization and melt spun into useful fibers.

6T/6I Terpolyamide

An improvement in the process for preparing random copolyamides by the melt polymerization of a mixture of hexamethylenediammonium terephthalate and hexamethylenediammonium isophthalate is described. The improvement comprises accomplishing the melt polymerization in the presence of a small amount of a certain phosphorus compound, such as benzene phosphinic acid, whereby ammonia formation during polymerization is reduced.

Melt preparation of 6TA/6IA polymers with phosphorus compound to reduce

Dopes from which shaped articles of oxadiazole/N-alkylhydrazide copolymers are provided. The dopes are prepared in a matter of minutes by combining and mixing a slurry of aromatic dihydrazide in aromatic diester with a mineral acid such as oleum.

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Lake Charles, LA, United States of America

George A Mortimer