頁籤選單縮合
題 名 | Electrolysis of Acetone in a Divided Cell=隔離槽中丙酮之電解反應 |
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作 者 | 蔡明瞭; 周澤川; | 書刊名 | 中國工程學刊 |
卷 期 | 21:4 1998.07[民87.07] |
頁 次 | 頁441-447 |
分類號 | 341.372 |
關鍵詞 | 醛醇縮合; 陽極室內; 陰極室內; Aldol condensation; Anolyte; Catholyte; |
語 文 | 英文(English) |
中文摘要 | 探討丙酮於一隔離式電解槽中,組對電解丙酮進行縮合反應生成二丙酮醇 實驗結果證實,陰陽極室內二丙酮醇之生成速率皆與丙酮濃度呈一級關係。當 度範圍由298至304K,陰陽PH值分別為12與3,通電量為60庫 侖時,陰極室內二丙酮醇之生成速率比陽極室內快,且陰陽極室內的活化能分 別為45.3及90.0kJ-mole�笐薄C |
英文摘要 | The mechanism and kinetics of aldol condensationof acetone to produce diacetone alcohol (daa) by paired electrolysis are studied. The results indicate that the reaction orders in both anolyte and catholyte are first order with respect to acetone. The acitivation energies of aldol condensation of acetone in catholyte and anolyte are 45.3 and 90.0 kj-- mole�笐�, respectively, In the temperature range from 298 to 304K, the pH values in both anolyte and catholyte are 3 and 12, respectively. For 60 coulombs of electricity passed the rate of daa formation in the catholyte is faster than that in the anolyte. |
本系統中英文摘要資訊取自各篇刊載內容。