METHOD OF WASTE GAS CLEANING FROM MIXED TRIARYLPHOSPHATES PRODUCTION

The purpose of this invention is the cleaning of waste gas containing residual acidic ingredients, mainly hydrogen chloride, to an such extent so the waste gas can be discharged into the atmosphere without any negative impact on the environment. The foresaid purpose is achieved so that after cooling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NEMEC LADISLAV ,CS, HYSKA KAREL ,CS, PAVLOVCIK MILAN ,CS, ZLACKY ALOJZ CSC.,CS, PETRO PAVOL ,CS
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The purpose of this invention is the cleaning of waste gas containing residual acidic ingredients, mainly hydrogen chloride, to an such extent so the waste gas can be discharged into the atmosphere without any negative impact on the environment. The foresaid purpose is achieved so that after cooling the gas down and making it free of the main fraction by absorption of non-reacted substances and hydrogen chloride, under a temperature of 10 up to 80 degrees Celsius; it is absorbed by a NaOH or KOH water solution with a lye concentration of 0.1 up to 5 mass % based on the water - alkalic extraction.