Ammonium salts of polymaleic acids and use as corrosion inhibitors in water-in-oil emulsions

Patent · Tue Mar 13 00:00:00 EST 1984

OSTI ID:6597841

Oppenlaender, K; Barthold, K; Stork, K

The subject invention relates to salts of polymaleic acids having a molecular weight between 200 and 1500 and to their use in preventing the corrosion of metal caused by hydrogen sulfide and carbon dioxide in water-in-oil emulsions such as crude oil.

• Assignee: BASF Aktiengesellschaft (Germany, Federal Republic of)
• Patent Number(s): US 4436639
• OSTI ID: 6597841
• Resource Relation: Patent Priority Date: Priority date 15 May 1981, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-376284
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
36 MATERIALS SCIENCE
CARBON DIOXIDE
CORROSIVE EFFECTS
CORROSION INHIBITORS
CHEMICAL COMPOSITION
EMULSIONS
HYDROGEN SULFIDES
METALS
CORROSION PROTECTION
AMMONIUM COMPOUNDS
MALEIC ACID
PETROLEUM
SALTS
SEAWATER
CARBON COMPOUNDS
CARBON OXIDES
CARBOXYLIC ACIDS
CHALCOGENIDES
COLLOIDS
DICARBOXYLIC ACIDS
DISPERSIONS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
WATER
023000* - Petroleum- Properties & Composition
360105 - Metals & Alloys- Corrosion & Erosion