USE OF AMINE SALTS OF MALEAMIC ACID AS CORROSION INHIBITORS OF C02 AND H2S IN WATER IN OIL EMULSIONS

• Main Authors: BARTHOLD, KLAUS, STORK, KARL, OPPENLAENDER, KNUT
• Format: Patent
• Language: English; German
• Published: 28.05.1986
• Edition: 4
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; ADHESIVES; 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; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIRELIGHTERS; FIXED CONSTRUCTIONS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIQUEFIED PETROLEUM GAS; LUBRICANTS; LUBRICATING COMPOSITIONS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; 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; NATURAL GAS; NATURAL RESINS; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PAINTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; POLISHES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION

1. The use of amine salts of maleamic acids of the formula I see diagramm : EP0106234,P5,F2 where R**1 and R**2 are identical or different and each denotes alkyl or alkenyl of 8 to 18 carbon atoms, and R**3 is hydrogen, alkyl of 1 to 18 carbon atoms or alkenyl of 2 to 18 carbon atoms, as agents for inhibiting the corrosion of metal brought about by H2 S and CO2 in water-in-oil emulsions, in admixture with amines of the formula II see diagramm : EP0106234,P5,F3 or amide acids of the formula III R**1 NH-CO-CH=CH-COOH R**1 , R**2 and R**3 having the above meanings, and the molar ratios of amine salt to amine and of amine salt to amide acid each being up to 1 : 2.