This invention relates to an anionic-cationic-nonionic surfactant as substantially represented by the formula (I), production and use thereof in tertiary oil recovery. The anionic-cationic-nonionic surfactant of this invention exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present anionic-cationic-nonionic surfactant, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.

##STR00001##

In the formula (I), each group is as defined in the specification.

Provided is a catalyst for transesterification reactions, which contains an iron salen complex. Also provided is a method for producing an ester compound, which is characterized by carrying out a transesterification reaction between a starting material ester and a starting material alcohol with use of the catalyst.

Provided is a catalyst for transesterification reactions, which contains an iron salen complex. Also provided is a method for producing an ester compound, which is characterized by carrying out a transesterification reaction between a starting material ester and a starting material alcohol with use of the catalyst.

Provided is a catalyst for transesterification reactions, which contains an iron salen complex. Also provided is a method for producing an ester compound, which is characterized by carrying out a transesterification reaction between a starting material ester and a starting material alcohol with use of the catalyst.

The present invention provides a method for producing a high quality cationic surfactant, which is prevented from smelling and coloring, and has favorable storage stability.

The production method includes the following step 1, step 2, step 3, and step 4: step 1: a step of obtaining an alkanolamine ester by reacting an alkanolamine with a fatty acid or a fatty acid alkyl ester without using hypophosphoric acid or a salt thereof; step 2: a step of obtaining a cationic surfactant by quaternizing the alkanolamine ester obtained in the step 1 with a dialkyl sulfate; step 3: a step of performing an oxidation treatment of the cationic surfactant obtained in the step 2; and step 4: a step of performing a reduction treatment of the cationic surfactant subjected to the oxidation treatment obtained in the step 3.

The present invention provides a method for producing a high quality cationic surfactant, which is prevented from smelling and coloring, and has favorable storage stability.

The production method includes the following step 1, step 2, step 3, and step 4: step 1: a step of obtaining an alkanolamine ester by reacting an alkanolamine with a fatty acid or a fatty acid alkyl ester without using hypophosphoric acid or a salt thereof; step 2: a step of obtaining a cationic surfactant by quaternizing the alkanolamine ester obtained in the step 1 with a dialkyl sulfate; step 3: a step of performing an oxidation treatment of the cationic surfactant obtained in the step 2; and step 4: a step of performing a reduction treatment of the cationic surfactant subjected to the oxidation treatment obtained in the step 3.

An anionic-cationic-nonionic surfactant as substantially represented by the formula (I) exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present anionic-cationic-nonionic surfactant, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.

##STR00001##

In the formula (I), each group is as defined in the specification.

An anionic-cationic-nonionic surfactant as substantially represented by the formula (I) exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present anionic-cationic-nonionic surfactant, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.

##STR00001##

In the formula (I), each group is as defined in the specification.

The present invention discloses a process for preparing a functionalized choline chloride ionic liquid as defined in formula (I), and thereof use in an electrochemical energy storage device, as an electrolyte solution or an additive for a lithium ion battery and a supercapacitor. The ionic liquid electrolyte material has better biocompatibility, flame retardance, high ionic conductivity, low viscosity, and wide electrochemical window. ##STR00001## wherein R.sup.1 is selected from the group consisting of: (CH.sub.2═CH—(CH.sub.2).sub.n)—, CN(CH.sub.2).sub.n—, or R.sup.2.sub.3Si—; R.sup.2 is selected from CH.sub.3—(CH.sub.2).sub.m—, n is an integer selected from 1 to 3, m is an integer selected from 0 to 2; or one of R.sup.2 is (CH.sub.3).sub.3Si—O—. Anion A in Formula I is selected from the group consisting of: Cl.sup.−, Br.sup.−, I.sup.−, BF.sub.4.sup.−, NO.sub.3.sup.−, SO.sub.4.sup.2−, CF.sub.3COO.sup.−, CF.sub.3SO.sub.3.sup.−, (CF.sub.3SO.sub.2).sub.2N.sup.−, PF.sub.6.sup.−, BF.sub.2C.sub.2O.sub.4.sup.−, or B(C.sub.2O.sub.4).sub.2.sup.−.

The present invention discloses a process for preparing a functionalized choline chloride ionic liquid as defined in formula (I), and thereof use in an electrochemical energy storage device, as an electrolyte solution or an additive for a lithium ion battery and a supercapacitor. The ionic liquid electrolyte material has better biocompatibility, flame retardance, high ionic conductivity, low viscosity, and wide electrochemical window. ##STR00001## wherein R.sup.1 is selected from the group consisting of: (CH.sub.2═CH—(CH.sub.2).sub.n)—, CN(CH.sub.2).sub.n—, or R.sup.2.sub.3Si—; R.sup.2 is selected from CH.sub.3—(CH.sub.2).sub.m—, n is an integer selected from 1 to 3, m is an integer selected from 0 to 2; or one of R.sup.2 is (CH.sub.3).sub.3Si—O—. Anion A in Formula I is selected from the group consisting of: Cl.sup.−, Br.sup.−, I.sup.−, BF.sub.4.sup.−, NO.sub.3.sup.−, SO.sub.4.sup.2−, CF.sub.3COO.sup.−, CF.sub.3SO.sub.3.sup.−, (CF.sub.3SO.sub.2).sub.2N.sup.−, PF.sub.6.sup.−, BF.sub.2C.sub.2O.sub.4.sup.−, or B(C.sub.2O.sub.4).sub.2.sup.−.