24569-83-3Relevant articles and documents
PROCESS FOR OXIDATION OF N-(PHOSPHONOMETHYL)IMINODIACETIC ACID
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Paragraph 0104, (2015/11/10)
An oxidation catalyst is prepared by pyrolyzing a source of iron and a source of nitrogen on a carbon support. Preferably, a noble metal is deposited over the modified support which comprises iron and nitrogen bound to the carbon support. The catalyst is effective for oxidation reactions such as the oxidative cleavage of tertiary amines to produce secondary amines, especially the oxidation of N-(phosphonomethyl)iminodiacetic acid to N-(phosphonomethyl)-glycine.
PURIFICATION OF N-(PHOSPHONOMETHYL)GLYCINE
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Page/Page column 4, 7, (2008/06/13)
The present invention is a process for the purification of glyphosate (PMG) comprising: 1) dissolving or suspending a material comprising PMG in water, in the presence of a base, to produce a composition comprising a PMG salt in an aqueous base, contacting the composition with an acid, such that the PMG salt is neutralized, forming a precipitate of PMG, and 3) isolating the precipitate of PMG. with the proviso that the composition of step 1) is not concentrated or filtered using a nanofiltration membrane.