Hanwha Solutions Corporation

Other

Lg Chem, Ltd

Doosan Enerbility Co., Ltd.

Jiyeon Kim

Jinho Park

Kyuho Song

Hyun Seo

Jeongseok Park

Youngjin Kim

Seonghoon Hyeong

Kwangwook Choi

Dong Oh Shin

Namjin Jang

Eun Yong Park

Doyeon Jeon

Jong Seol Yoon

Provided are a method of preparing laurolactam including: a) synthesizing laurolactam by Bechmann rearrangement of cyclododecanone oxime under a catalyst system, b) mixing the laurolactam synthesized in a) with a good solvent and removing the catalyst system, and c) mixing the laurolactam from which the catalyst system has been removed in b) with a poor solvent and performing recrystallization, a synthesis device thereof, a laurolactam composition prepared therefrom, and a method of preparing polylaurolactam using the laurolactam composition.

Method for producing laurolactam, device for synthesizing same, laurolactam composition produced thereby, and method for producing polylaurolactam using same

The present invention relates to a laurolactam preparation method and synthesis apparatus, and epoxidation and a rearrangement reaction are performed in the conversion of cyclododecene into cyclododecanone so that the preparation method can synthesize laurolactam having a higher purity with a higher selectivity and in a higher yield than a conventional preparation method.

Laurolactam preparation method and synthesis apparatus

The present invention relates to a method of preparing cyclododecanone. According to the present invention, a method of preparing cyclododecanone which allows implementation of a high conversion rate and minimization of production of unreacted materials and reaction by-products may be provided. In addition, the present invention implements a high conversion rate and a high selectivity even by a simplified process configuration, and thus may be usefully utilized in an economical method of preparing laurolactam, allowing commercially easy mass production.

Method for manufacturing cyclododecanone

The present invention relates to a firing cartridge, and more particularly, to a firing cartridge in which multiple slit grooves are formed in lateral portions positioned between an upper end portion and a lower end portion, and solid fuel cell electrodes are inserted into the slit grooves, such that the number of cells, which may be fired at the same time, is increased, and thus productivity of a solid fuel cell may be improved.

Cartridge for firing

Growing community of inventors

Daejeon, South Korea

Jiyeon Kim