Imidazoline based corrosion inhibitors which inhibit corrosion caused by CO.sub.2 and H.sub.2 S

US4388214A · kind A · utility

Assignee

• BASF SE

Inventors

• Knut Oppenlaender · Ludwigshafen, DE
• Karl Stork · Eisenberg (Pfalz), DE
• Klaus Barthold · Mannheim, DE

Key dates

• Filing date: Feb 26, 1982
• Grant date: Jun 14, 1983
• Expiry date: Feb 26, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S507/939
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The subject invention relates to corrosion inhibitors prepared by reacting certain imidazolines or precursors thereof with sulfur. The corrosion inhibitors are particularly useful in inhibiting corrosion of metal tanks caused by CO.sub.2 and H.sub.2 S ("acid gas") during the transport and storage of crude oils.