Lg Chem, Ltd

Sk Innovation Co., Ltd.

Donghyun Ko

Sungshik Eom

Sang Gi Lee

Kwang Ho Park

Dae Sun Rew

O Hak Kwon

O-Hak Kwon

Jeonkeun Oh

Jijoong Moon

You Moon Jeon

Jaehui Choi

Hyosung Lee

Hyeungjin Lee

You-Moon Jeon

Hyun Woo Cho

A method of synthesizing glycol diester by reacting a linear aliphatic carboxylic acid and a glycol monoester in the presence of a Lewis acid type catalyst is provided. In the method, after introducing the glycol monoester, the linear aliphatic carboxylic acid and the Lewis acid type catalyst into a reactor, the reaction occurs to produce reaction products and water in the reactor; an excess of the linear aliphatic carboxylic acid forms an azeotrope with water during the reaction to be sent to a condenser through a distillation column; the linear aliphatic carboxylic acid and water passed through the condenser are divided into an organic layer and an aqueous layer in an oil water separator; and the organic layer is returned to the distillation column through a material cycling line and water in the aqueous layer is removed through a water removal line. By utilizing reactive distillation technique, water produced during the reaction is rapidly removed, and thus the reaction time can be significantly reduced and the yield of the glycol diester can be maximized.

Synthetic method of glycol diesters from reaction of glycol monoesters and linear aliphatic carboxylic acids

Provided are a catalyst composition including a transition metal catalyst and a nitrogen-containing bidentate phosphorus compound and a process for hydroformylation reaction of olefins to prepare aldehydes which includes stirring the catalyst composition, an olefin compound, and a gas mixture of of carbon monoxide and hydrogen, under high temperature and pressure condition. Therefore, very high catalytic activity and high selectivity in normal-aldehyde or iso-aldehyde according to the type of a substiuent are ensured.

Phosphorus-containing catalyst composition and process for hydroformylation reaction using the same

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Daejeon, South Korea

Donghyun Ko