CONTROL OF A PROCESS FOR THE PURIFICATION OF (METH) ACRYLIC ACID USING ON-LINE, NEAR IR ANALYSIS

CONTROL OF A PROCESS FOR THE PURIFICATION OF (METH) ACRYLIC ACID USING ON-LINE, NEAR IR ANALYSIS

An improved process for the manufacture of technical grade (meth)acrylic acid, e.g., acrylic acid, the process comprising producing a hydrated reaction product from the gas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followed by first dehydrating and then concentra...

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Hauptverfasser: LIGON, TIMOTHY, D, JAWAID, MAHMOOD, N.A, FRUCHEY, OLAN, S, HO, FUNGAU, ROUNDY, ROGER, L, ETZKORN, WILLIAM, G, REEVES, CHRISTOPHER, T, WIEGAND, PATRICK, M
Format: Patent
Sprache:eng ; fre ; ger
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator LIGON, TIMOTHY, D
JAWAID, MAHMOOD, N.A
FRUCHEY, OLAN, S
HO, FUNGAU
ROUNDY, ROGER, L
ETZKORN, WILLIAM, G
REEVES, CHRISTOPHER, T
WIEGAND, PATRICK, M
description An improved process for the manufacture of technical grade (meth)acrylic acid, e.g., acrylic acid, the process comprising producing a hydrated reaction product from the gas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followed by first dehydrating and then concentrating the reaction product, the improvement comprising controlling at least one of the water, acetic acid and (meth)acrylic acid content of the reaction product during the purification of the reaction product using on-line, near IR spectroscopy.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title CONTROL OF A PROCESS FOR THE PURIFICATION OF (METH) ACRYLIC ACID USING ON-LINE, NEAR IR ANALYSIS
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