广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
18期
77-78,112
,共3页
硫酸氢钠%乙酸乙酯%催化%合成
硫痠氫鈉%乙痠乙酯%催化%閤成
류산경납%을산을지%최화%합성
sodium bisulfate%ethyl acetate%catalytic%synthesis
在间歇反应釜中以硫酸氢钠为催化剂,乙醇和乙酸为原料催化合成乙酸乙酯。在消除内外扩散影响的前提下,以初始速率法回归动力学方程。在催化剂过200目分子筛,实验转速为200 r/min条件下,反应内外扩散可以消除。在实验范围内获得动力学方程参数为:活化能33609.35 J.mol-1,指前因子k0=24874.29 mol-1.L·min-1,反应动力学方程为:-rA=(0.0657x-0.00746)×2487.29×e-33609.35/RT×(CACB-CECW/3.51)。
在間歇反應釜中以硫痠氫鈉為催化劑,乙醇和乙痠為原料催化閤成乙痠乙酯。在消除內外擴散影響的前提下,以初始速率法迴歸動力學方程。在催化劑過200目分子篩,實驗轉速為200 r/min條件下,反應內外擴散可以消除。在實驗範圍內穫得動力學方程參數為:活化能33609.35 J.mol-1,指前因子k0=24874.29 mol-1.L·min-1,反應動力學方程為:-rA=(0.0657x-0.00746)×2487.29×e-33609.35/RT×(CACB-CECW/3.51)。
재간헐반응부중이류산경납위최화제,을순화을산위원료최화합성을산을지。재소제내외확산영향적전제하,이초시속솔법회귀동역학방정。재최화제과200목분자사,실험전속위200 r/min조건하,반응내외확산가이소제。재실험범위내획득동역학방정삼수위:활화능33609.35 J.mol-1,지전인자k0=24874.29 mol-1.L·min-1,반응동역학방정위:-rA=(0.0657x-0.00746)×2487.29×e-33609.35/RT×(CACB-CECW/3.51)。
With sodium bisulfate as catalyst, ethanol and acetic acid as raw material, ethyl acetate in batch reactor was catalytic synthesized. After eliminating the internal and external diffusions, the dynamics equation was investigated used initial rate method regression. In a 200 mesh molecular sieve catalyst, the rotating at 200 r/min conditions, both inside and outside the reaction diffusion can be eliminated. In the range of this experiment, the kinetic parameters were that the obtained pre - exponential factor k0 in the kinetic equation was 24874.29 moL- 1 . L·min - 1, the activation energy Ea was 33609.35 J· moL-1 and the kinetic equation -rA = (0. 0657x -0. 00746) x 2487.29 x e-3369 35/RT X ( CA CB CE Cw/3.51 ).