天然气化工
天然氣化工
천연기화공
NATURAL GAS CHEMICAL INDUSTRY
2001年
2期
26-29
,共4页
醋酐%醋酸甲酯%羰基化%醋酸锂
醋酐%醋痠甲酯%羰基化%醋痠鋰
작항%작산갑지%탄기화%작산리
对醋酸甲酯羰基化合成醋酐过程中醋酸锂的作用进行了研究。结果显示，醋酸锂的加入可以明显提高羰基化反应速度，它可改变反应速率的控制步骤。适宜的添加量时，羰基化反应速率可达到一极值，醋酐时空产率超过300molAc2O/(molRh*h)。醋酸锂的最佳添加量与碘甲烷和铑浓度呈函数关系。
對醋痠甲酯羰基化閤成醋酐過程中醋痠鋰的作用進行瞭研究。結果顯示，醋痠鋰的加入可以明顯提高羰基化反應速度，它可改變反應速率的控製步驟。適宜的添加量時，羰基化反應速率可達到一極值，醋酐時空產率超過300molAc2O/(molRh*h)。醋痠鋰的最佳添加量與碘甲烷和銠濃度呈函數關繫。
대작산갑지탄기화합성작항과정중작산리적작용진행료연구。결과현시，작산리적가입가이명현제고탄기화반응속도，타가개변반응속솔적공제보취。괄의적첨가량시，탄기화반응속솔가체도일겁치，작항시공산솔초과300molAc2O/(molRh*h)。작산리적최가첨가량여전갑완화로농도정함수관계。
The influence of lithium acetate to carbonylation of methyl acetate to acetic anhydride has been studied. The results showed that lithium acetate could increase the reaction rate apparently, and change the control step of the carbonylation.There was a optimal amount of lithium acetate, in which the reaction rate of carbonylation reached a maximum and the space-time yield was over 300molAc2O/(molRh*h),and which was related to the amount of methyl iodide and rhodium..
