Corrosion inhibitors

US8119573B2 · kind B2 · utility

Assignee

• BROMINE COMPOUNDS LTD. · IL

Inventors

• Serge Gutman · Beer Sheva, IL
• Sharon Krumbein · Meitar, IL
• David Itzhak · Omer, IL
• Mira Bergstein Freiberg · Omer, IL

Key dates

• Filing date: Feb 12, 2007
• Grant date: Feb 21, 2012
• Expiry date: Jun 21, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K8/54
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Provided is an anticorrosive composition for use in aqueous salt solutions. The composition contains an antimony compound and at least two other components selected from morpholine derivatives, acetylenic alcohols, ascorbic acid derivatives, and selenium compounds. The composition is particularly useful for inhibiting corrosion of metallic surfaces of drilling devices or refrigeration systems that are in contact with salt brines at elevated temperatures.