Lg Chem, Ltd

Hyo Sang You

Byung Yul Choi

Duk Ki Kim

Hyun Jong Shin

Young Hyun Choe

Hyun Sub Lim

Sung Jin Kim

Dong Hyun Cho

Hyun Woo Park

Hyun Joon Kang

Jae Keun Yoon

Ju Yeon Park

The present invention relates to a bundle-type carbon nanotube which has a bulk density of 25 to 45 kg/m, a ratio of the bulk density to a production yield of 1 to 3, and a ratio of a tap density to the bulk density of 1.3 to 2.0, and a method for preparing the same.

Bundle-type carbon nanotubes and method for preparing the same

The present invention relates to a method for preparing a catalyst and a method for preparing unsaturated carboxylic acid using the catalyst prepared according to the preparation method. According to the method for preparing a catalyst, unsaturated carboxylic acid can be provided from an unsaturated aldehyde with a high conversion rate and selectivity.

Method for preparing catalyst

The present invention relates to a high-performance polyoxometalate catalyst and a method of preparing the same. More particularly, the present invention provides a high-performance polyoxometalate catalyst, the activity and selectivity of which may be improved by controlling the content of vanadium and the like and which has superior reproducibility and may unsaturated carboxylic acid from unsaturated aldehyde in a high yield for a long time, a method of preparing the same, and the like.

High-performance polyoxometalate catalyst and method of preparing the same

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Daejeon, South Korea

Hyo Sang You