CORROSION INHIBITOR COMPRISING SB AND MO SALTS AND PROCESS FOR INHIBITING CORROSION USING THE INHIBITOR

A composition and process for inhibiting corrosion of metal surfaces are disclosed. The composition comprises a soluble antimony salt and a soluble molybdenum salt. The corrosion inhibitor is particularly useful in acid gas scrubbing processes where scrubbing solutions comprising alkali metal salts...

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Bibliographische Detailangaben
Hauptverfasser:	FOROULIS, ZISIS ANDREW, FEATHER, JAMES EDWARD, SAY, GEOFFREY RHYS, CHUNG, JIHCHIN, HAYS, JAMES RICHARD
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY 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 MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	A composition and process for inhibiting corrosion of metal surfaces are disclosed. The composition comprises a soluble antimony salt and a soluble molybdenum salt. The corrosion inhibitor is particularly useful in acid gas scrubbing processes where scrubbing solutions comprising alkali metal salts and amine promoters are used. In a preferred method, the metal surfaces of the acid-gas treating system are contacted with a solution comprising an antimony salt prior to the introduction of acid-containing gas to the system.