Me 1 hod for removing or collecting 2-alkoxyethanol, and method for producing (2-alkoxyethyl) vinyl ether

A method for recovering a 2-alkoxyethanol, the method comprising:

• adding at least one azeotropic solvent selected from the group consisting of normal heptane, isooctane, and a combination thereof to a mixture comprising
• the 2-alkoxyethanol of the following formula (1):
• R—O—CH2CH2OH (1)
• and
• a (2-alkoxyethyl) vinyl ether of the following formula (2):
• R—O—CH2CH2O—CH═CH2 (2)
• to subject the mixture to azeotropic distillation, thereby forming a distilled azeotropic mixture, and
• separating the distilled azeotropic mixture into an 2-alkoxyethanol phase and an azeotropic solvent phase by liquid-liquid separation, thereby recovering a 2-alkoxyethanol, wherein R is an alkyl group having 1 to 4 carbon atoms.

A method for producing a (2-alkoxyethyl) vinyl ether, the method comprising:

• conducting a vinyl etherification of a 2-alkoxyethanol of the following formula (1):
• R—O—CH2CH2OH (1)
• as a raw material alcohol, to obtain a reaction mixture comprising an unreacted raw material alcohol and the (2-alkoxyethyl) vinyl ether of the following formula (2):
• R—O—CH2CH2O—CH═CH2 (2)
• and
• conducting azeotropic distillation by adding at least one azeotropic solvent selected from the group consisting of normal heptane, isooctane, and a combination thereof to the reaction mixture to remove the raw material alcohol, thereby producing a (2-alkoxyethyl) vinyl ether, wherein R is an alkyl group having 1 to 4 carbon atoms.

A method for producing a (2-alkoxyethyl) vinyl ether, the method comprising:

• conducting a vinyl etherification of a 2-alkoxyethanol of the following formula (1):
• R—O—CH2CH2OH (1)
• as a raw material alcohol, in the presence of a catalyst, to obtain a reaction mixture comprising an unreacted raw material alcohol and the (2-alkoxyethyl) vinyl ether of the following formula (2):
• R—O—CH2CH2O—CH═CH2 (2)
• removing the catalyst from the reaction mixture, and
• conducting azeotropic distillation by adding at least one azeotropic solvent selected from the group consisting of normal heptane, isooctane, and a combination thereof to the reaction mixture after the catalyst removal to remove the raw material alcohol, thereby producing a (2-alkoxyethyl) vinyl ether, wherein R is an alkyl group having 1 to 4 carbon atoms.