| 摘要 |
PURPOSE:To obtain a phenol of lignin related type useful as a raw material for synthesizing high polymers, a raw material for fine chemicals, etc., by decomposing enzymatically dust (nonfibrous part) of coconut husk in the presence of Co (III) catalyst and an alkali. CONSTITUTION:Coconut husk is ground into a dust part and a fibrous part, the dust part is dried, powdered, and decomposed enzymatically in the presence of both a CO (III) catalyst and an alkali, to give the aimed substance. The enzymatic decomposition is carried out by using 2N-4N NaOH or KOH as a medium at 3-10kg/cm<2> oxygen pressure at 130-165 deg.C reaction temperature. An amount Co(OH)3 used as the catalyst is 2-4wt% in the reaction system, and 5-20mmmol Co (III) is used based on 1g lignin. Oxygen or air is used as an oxidizing agent. |
