Monsanto Technology LLC

Phillips Petroleum Company

Donald D Soleta

Peter E Rogers

Eduardo Aurelio Casanova

Eric A Haupfear

Robert E Byrd

Russell M Morris

James P Coleman

David Z Becher

David R Eaton

Lowell R Smith

Stephen D Prosch

Walter K Gavlick

Mark D Scaia

Carl Mumford

Alfredo Oba

Bart Roose

Oliver Lerch

Leonard Aynardi

John Wagenknecht

This invention relates to the preparation of N-(phosphonomethyl)glycine ('glyphosate') from N-(phosphonomethyl)iminodiacetic acid ('PMIDA'), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.

Control of N-(phosphonomethyl)iminodiacetic acid conversion manufacture of glyphosate

Control of N-(phosphonomethyl)iminodiacetic acid conversion in manufacture of glyphosate

An analyzer system for improving quality of a reaction product, wherein a liquid sample must be maintained at an elevated temperature to prevent precipitation of titratable species, comprises a heated sample and dilution section, an autotitrator and a programmable controller. In operation a liquid sample to be analyzed is withdrawn from a reactor and maintained at reactor temperature while being diluted. The diluted sample is then cooled and passed to an autotitrator for analysis. The analyzer system includes a programmable controller for automatic unattended dilution of successive samples.

Heated dilution system for a liquid sample

Heated dilution method for a liquid sample

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St. Louis, MO, United States of America

Donald D Soleta