FIELD: chemistry.
SUBSTANCE: invention relates to an amine adduct for producing surfactants. Disclosed amine adduct contains a product obtained by means of (1) or (2), or (3) paths. Path (1) consists of (a) obtaining an intermediate coupling product by heating a mixture containing at least one diene and at least one acyl of an unsaturated fatty acid, and (b) reacting said intermediate coupling product with a diamine to obtain an adduct of an amine. Path (2) consists of (a) reacting at least one acyl of an unsaturated fatty acid with at least one diamine to obtain an amidoamine intermediate product and (b) heating the mixture of the amidoamine intermediate product and at least one diene to obtain an adduct of an amine. Path (3) consists in reacting at least one unsaturated fatty tertiary amine compound with at least one diene to obtain an adduct of an amine. Diene is (C4-C30) conjugated diene selected from isoprene, butadiene, dimethylbutadiene and cyclic dienes. Diamine has structure (III), where R3 is a divalent hydrocarbon radical optionally substituted by one or more carbon atoms by hydroxyl, more preferably (C2-C6)alkylene radical with a straight or branched-chain optionally substituted by one or more carbon atoms with hydroxyl, R4 and R5 each independently represent alkyl, cycloalkyl, aryl or aralkyl, or can be combined, forming together with nitrogen atom, to which they are attached, 4-8-member heterocyclic ring. Invention also relates to a method of producing said amine adduct, surface-active compositions containing at least one surfactant obtained from said adduct of an amine, a method of treating particles, a method of breaking a subterranean formation and methods of increasing oil recovery of the formation.
(III).
EFFECT: use of the disclosed adduct of an amine and compositions increases oil recovery of the formation.
22 cl, 6 dwg, 6 tbl, 2 ex
