| 摘要 |
PURPOSE:To obtain the above mentioned catalyst having a high activity and not lowering the activity extending over a long period, by carrying the mixture of powdered anhydrous K compound and a specific amount of metallic Na on granular K compound and also, limiting the amount of powdered K compound to the granular anhydrous K compound. CONSTITUTION:Mixture composed of powdered anhydrous K compound (for example, K2CO3) having grain diameter of 1-100mum and melting Na metal of 0.1-30g atom against K 1g atom, is carried on the granular anhydrous K compound (for example, K2CO3) having grain diameter of 1-10mm.. On this occasion, the amount of the powdered anhydrous K compound to the granular anhydrous K compound, is made 0.5-20%. |
