Method of manufacturing alkoxysilane compound
AssigneeLG Chem, Ltd.
InventorsKyu Reon Lee, Se Won Baek
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Abstract
Provided is a method of manufacturing an alkoxysilane compound, the method capable of more effectively removing ammonia generated as a byproduct when the alkoxysilane compound is manufactured with a silazane-based compound by adding and reacting a silazane-based compound. The method includes: adding an alcohol to a silazane-based compound and allowing the alcohol to react with the silazane-based compound to manufacture a first mixture containing an alkoxysilane compound and ammonia; adding an acid having a pKa of 2-6.5 to the first mixture to prepare a second mixture containing the alkoxysilane compound and an ammonium salt; adding an aqueous solvent to the second mixture to dissolve the ammonium salt; and separating and removing the ammonium salt.
Claims12
A method of manufacturing an alkoxysilane compound, comprising:
- (1) adding an alcohol to a silazane-based compound of the following Formula 1 and allowing the alcohol to react with the silazane-based compound to prepare a first mixture comprising an alkoxysilane compound and ammonia;
- (2) adding an acid with pKa 2 to 6.5 to the first mixture and allowing the acid to react with the first mixture to prepare a second mixture comprising the alkoxysilane compound and an ammonium salt;
- (3) adding an aqueous solvent to the second mixture to dissolve the ammonium salt;
- and
- (4) separating and removing the aqueous layer, in which the ammonium salt is dissolved, to obtain the alkoxysilane compound:
- wherein R1 is an alkyl group having 1 to 8 carbon atoms, R2 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and n is an integer ranging from 1 to 3,
- wherein the acid with pKa 2 to 6.5 comprises one or more selected from the group consisting of acetic acid, phosphoric acid, fluoroacetic acid, chloroacetic acid, citric acid, and formic acid, and
- wherein the pH of the second mixture is in a range of pH 6.5 to pH 7.5.
Dependencies are inferred from the claim text.