Method for cleaning carbonyl compound liquid storage tank

The invention discloses a method for cleaning a carbonyl compound liquid storage tank, and relates to a method for removing liquid including carbonyl metal (nickel carbonyl and iron carbonyl) in the carbonyl compound liquid storage tank. The method is characterized by including the following cleanin...

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Hauptverfasser:	JIANG LONG, YANG YONGXUE, YANG ZHIQIANG, ZHANG HUA, WANG LIANG, AN JIANSHE, MA LIANGJIE, WANG FANGZHEN, FENG JIANZHONG, XIAO DONGMING, TIAN DONG, WANG ZHIHONG, WANG DAWO, DONG WEI, LIU LI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING CLEANING IN GENERAL CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses a method for cleaning a carbonyl compound liquid storage tank, and relates to a method for removing liquid including carbonyl metal (nickel carbonyl and iron carbonyl) in the carbonyl compound liquid storage tank. The method is characterized by including the following cleaning steps of: adding iodine into the liquid storage tank to react with the carbonyl compounds, and after generating iodine compounds and carbon monoxide, blowing nitrogen to sweep the liquid storage tank. According to the method provided by the invention, the strong oxidizing property of iodine crystal particles is utilized to perform redox reaction with residual carbonyl metal in the nickel carbonyl liquid storage tank, then the nitrogen is used for sweeping by blowing to clean residual carbonyl compounds in the nickel carbonyl liquid storage tank, and thereby the carbonyl metal content is reduced to be less than 0.1ppb.