Method for preparing alkyl carboxylic acid ester and apparatus for preparing alkyl carboxylic acid ester
AssigneeGs Caltex Corporation
InventorsKyoung Jun LEE, In Chang CHOI, Woo Young KIM
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Abstract
In methods for preparing an alkyl carboxylic acid ester according to embodiments of the present invention, a first reaction product is produced by reaction of a carboxylic acid stream and a first alcohol stream in a preliminary reactor. A second reaction product is produced by at least partially removing alcohol and water from the first reaction product. The second reaction product is esterified by reaction with a second alcohol stream in a main reactor. An alkyl carboxylic acid ester is recovered from the main reactor.
Claims15
A method for preparing an alkyl carboxylic acid ester, the method comprising:
- reacting a carboxylic acid stream and a first alcohol stream in a first reactor to produce a first reaction product;
- at least partially removing alcohol and water from the first reaction product to produce a second reaction product;
- esterifying by reacting the second reaction product with a second alcohol stream in a second reactor;
- and
- recovering an alkyl carboxylic acid ester from the second reactor.
An apparatus for preparing an alkyl carboxylic acid ester, comprising:
- a first reactor for partial esterification through reaction of a carboxylic acid with an alcohol;
- a separator for receiving a reaction product from the first reactor and at least partially separating water and alcohol;
- a second reactor for receiving a reaction product from which water and alcohol are separated from a distillation column and esterifying an unreacted carboxylic acid;
- and
- a separation and purification unit for collecting an alkyl carboxylic acid ester produced from the second reactor.
Dependencies are inferred from the claim text.