METHOD OF CLEANING REACTION VESSEL

METHOD OF CLEANING REACTION VESSEL

PROBLEM TO BE SOLVED: To provide a cleaning method applicable to an ordinary reaction vessel not pressure-resistant, capable of thoroughly cleaning crosslinked matter or gel derived from an acrylic copolymer, under a milder condition.SOLUTION: The method of cleaning a reaction vessel for removing de...

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Hauptverfasser: NAKAJIMA MITSURU, KURAMOCHI YOSHIAKI, OTOME SHIGEO
Format: Patent
Sprache:eng
Schlagworte:
CLEANING
CLEANING IN GENERAL
PERFORMING OPERATIONS
PREVENTION OF FOULING IN GENERAL
TRANSPORTING
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creator NAKAJIMA MITSURU
KURAMOCHI YOSHIAKI
OTOME SHIGEO
description PROBLEM TO BE SOLVED: To provide a cleaning method applicable to an ordinary reaction vessel not pressure-resistant, capable of thoroughly cleaning crosslinked matter or gel derived from an acrylic copolymer, under a milder condition.SOLUTION: The method of cleaning a reaction vessel for removing deposits derived from a thermoplastic acrylic copolymer present in a stainless steel reaction vessel wherein the thermoplastic acrylic copolymer has been synthesized, is characterized by carrying out the cleaning using an aqueous cleaning solution comprising an alkali metal hydroxide in an amount of at least 1 mass% and lower than 15 mass% and comprising at least one species of a 2C or 3C monovalent alcohol in an amount of at least 3 mass% and not greater than 50 mass%.
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subjects CLEANING
CLEANING IN GENERAL
PERFORMING OPERATIONS
PREVENTION OF FOULING IN GENERAL
TRANSPORTING
title METHOD OF CLEANING REACTION VESSEL
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