Method of reducing impurities in a catalyst for producing terephthalic acid

A method of reducing impurities in a catalyst for the production of purified terephthalic acid includes forming purified terephthalic acid by hydrogenating crude terephthalic acid with a catalyst in a reactor; separating the purified terephthalic acid from the catalyst and reactivating the catalyst...

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Hauptverfasser: Rasadiya, Paresh Bhagvanbhai, Nedumbamana, Sankaran B, Hashmi, Syed Azhar
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creator Rasadiya, Paresh Bhagvanbhai
Nedumbamana, Sankaran B
Hashmi, Syed Azhar
description A method of reducing impurities in a catalyst for the production of purified terephthalic acid includes forming purified terephthalic acid by hydrogenating crude terephthalic acid with a catalyst in a reactor; separating the purified terephthalic acid from the catalyst and reactivating the catalyst by washing with a caustic solution; and flushing the catalyst contaminated with impurities with a non-caustic liquid at a flushing temperature of greater than or equal to 50° C.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
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
title Method of reducing impurities in a catalyst for producing terephthalic acid
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