PURIFICATION OF N-(PHOSPHONOMETHYL)GLYCINE

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, 2) contacting the composition with an acid, such that...

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Main Authors RINGER, JAMES WILLIAM, EMONDS, MARK VICTOR MICHAEL, PRAAY, HERBERT NATHAN, TAI, JIMMY JUI
Format Patent
LanguageEnglish
Polish
Published 30.06.2009
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Abstract 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, 2) 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.
AbstractList 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, 2) 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.
Author TAI, JIMMY JUI
PRAAY, HERBERT NATHAN
RINGER, JAMES WILLIAM
EMONDS, MARK VICTOR MICHAEL
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Snippet 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...
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CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Title PURIFICATION OF N-(PHOSPHONOMETHYL)GLYCINE
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