METHOD FOR REMOVING TRACE OF COMPONENT IN AQUEOUS LIQUID BY EVAPORATION AND DEVICE THEREOF

PROBLEM TO BE SOLVED: To attain economical removal by feeding an aqueous solutions containing a specific quantity of compound whose b.p. in the aqueous solutions in a specified range under the atmospheric pressure, from the upper part of an evaporation column having a rectrification effect and conti...

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Hauptverfasser:	KAWASE YASUHITO, AIDA CHIZUKO, ODA AKIMASA, RIYUU HOUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To attain economical removal by feeding an aqueous solutions containing a specific quantity of compound whose b.p. in the aqueous solutions in a specified range under the atmospheric pressure, from the upper part of an evaporation column having a rectrification effect and continuously evaporating and removing the trace component only with sensible heat kept in the aqueous solution. SOLUTION: The aqueous solution (raw liquid) containing 1 ppb-5 wt.% compound whose b.p. in the aqueous liquid under the atmospheric pressure is >0 deg.C to