ACID CORROSION INHIBITOR

FIELD: protection of metals against acid corrosion with use of chemical reagents. SUBSTANCE: invention can find use in petroleum and petrochemical industries. Composition of proposed inhibitor includes product of condensation of primary or secondary amines, acetophenon and formaldehyde in molar prop...

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Bibliographische Detailangaben
Hauptverfasser:	JASMAN JA.B, SEL'SKIJ B.E, NIKOL'SKAJA M.P, SHITOV G.P
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
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Beschreibung
Zusammenfassung:	FIELD: protection of metals against acid corrosion with use of chemical reagents. SUBSTANCE: invention can find use in petroleum and petrochemical industries. Composition of proposed inhibitor includes product of condensation of primary or secondary amines, acetophenon and formaldehyde in molar proportion 1: 1-2: 1.2-2.4 to make inhibitor cheaper and to enhance its efficiency in acid environment. Urotropine in the amount of 10-90 per cent by mass is added into prepared composition. EFFECT: cheapened inhibitor with enhanced efficiency in acid environment. 1 tbl