RECOVERY OF NOBLE METALS FROM AQUEOUS PROCESS STREAMS IN THE SYNTHESIS OF GLYPHOSATE USING ADSORPTION MEDIA SUCH AS ION EXCHANGE RESINS

RECOVERY OF NOBLE METALS FROM AQUEOUS PROCESS STREAMS IN THE SYNTHESIS OF GLYPHOSATE USING ADSORPTION MEDIA SUCH AS ION EXCHANGE RESINS

This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)i...

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Hauptverfasser: SCAIA, MARK, D, EATON, DAVID, R, HOEKSTRA, ROGER, J, HAUPFEAR, ERIC, A
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Sprache:eng ; fre ; ger
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ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator SCAIA, MARK, D
EATON, DAVID, R
HOEKSTRA, ROGER, J
HAUPFEAR, ERIC, A
description This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed oxidation of an N-(phosphonomethyl)iminodiacetic acid substrate. The process includes contacting the aqueous process stream with a noble metal adsorption media such as an ion exchange resin to remove solubilized noble metal from the process stream.
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subjects ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title RECOVERY OF NOBLE METALS FROM AQUEOUS PROCESS STREAMS IN THE SYNTHESIS OF GLYPHOSATE USING ADSORPTION MEDIA SUCH AS ION EXCHANGE RESINS
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