1999年12月
Polymerization of formaldehyde by an immobilized thiamine catalyst on cation-exchange resin
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
- ,
- ,
- 巻
- 32
- 号
- 6
- 開始ページ
- 776
- 終了ページ
- 782
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1252/jcej.32.776
- 出版者・発行元
- SOC CHEMICAL ENG JAPAN
Thiamine is a primary catalyst of carbohydrate production from a simple chemical. As the best immobilization method, we succeeded in immobilization of thiamine on a cation exchange resin, and formaldehyde polymerization with the immobilized catalyst. The desorption and decomposition of the immobilized thiamine can be suppressed in an organic solvent and by using the action exchange resin in the sodium ion form. The main product is 1,3-dihydroxyacetone in all reaction under our conditions. The effect of the base concentration and the diffusion in the particle on the reaction rate are not observed under our conditions. Formaldehyde polymerization with the thiamine immobilized resin in 1,4-dioxane proved to be able to express the equation,-d [formaldehyde]/dt = k [thiamine] [formaldehyde]. The activation energy of the reaction can be estimated to be approximately 82 kJ mol(-1).
- リンク情報
- ID情報
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- DOI : 10.1252/jcej.32.776
- ISSN : 0021-9592
- Web of Science ID : WOS:000084319300008