EOR oil carboxylate Preparation
Carboxylate by petroleum oil fractions by high temperature oxidation, and then by saponification? Extraction of the product obtained. It belongs to the oxidative cleavage product saturated hydrocarbon complex composition mainly containing an alkyl carboxylate salts and aryl carboxylate salts. Production of oil carboxylate main raw material for regular oil expeller and second-line fraction to vapor phase or liquid phase oxidation oxide production. Vapor phase oxidation process with oxygen in the air as oxidant at 325 ℃, oleic acid cadmium oxide as a catalyst, the oxygen / hydrocarbon ratio of 2.20, the water / hydrocarbon ratio of 25 to 50. After the reaction product was saponified with NaOH to remove the oil phase, to obtain petroleum products carboxylate, effective content was 10%. Liquid phase oxidation in the vapor phase oxidation process is a process based on a new method developed by liquid oxidizing agent to conduct the reaction at 180 ℃, the machine for pellets of carboxylate may be raised to 20%. Oil is an important carboxylate cosurfactant, together with synthetic alkylbenzene sulfonates, can increase the stability of the surfactant system? Dilution resistance and compatibility with a base.