王亞明， 王路輝， 蔣麗紅， 王 震

(昆明理工大學(xué)生物與化學(xué)工程學(xué)院，云南昆明650224)
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摘 要： 用AH型非貴金屬催化劑催化松香歧化反應(yīng)，考察了攪拌速率、催化劑粒度、反應(yīng)溫度、反應(yīng)時間對反應(yīng)的影響，建立了動力學(xué)方程。確認(rèn)在240～270℃范圍反應(yīng)為一級,求出在240、250、260和270℃時的反應(yīng)速率常數(shù)分別為2.9×10-3、3.1×10-3、1.42×10-2和2.51×10-2min-1。表觀活化能E為184.80×103 kJ/mol，頻率因子A =1.453×1016。
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關(guān)鍵詞： AH型非貴金屬催化劑；松香歧化反應(yīng)；動力學(xué)方程

中圖分類號：TQ351.47；TQ426    文獻(xiàn)標(biāo)識碼：A    文章編號：0253-2417(2006)04-0011-03

Research on Reaction Kinetics of Disproportionation of Gum Rosin Catalyzed by AH Non­noble Metal Catalyst

WANG Ya­ming, WANG Lu­hui, JIANG Li­hong, WANG Zhen

(Institute of Biological and Chemical Engineering,Kunming University of Science and Technology, Kunming 650224, China)

Abstract: The reaction of disproportionation of gum rosin catalyzed by AH nonnoble metal catalyst was studied, and the effects of reaction temperature, reaction time, particle size of catalyst, and stir speed were investigated. It was found that the reaction was of the first order at 240-270℃. Reaction rate constants were 2.9×10-3, 3.1×10-3, 1.42×10-2, 2.51×10-2min-1 at 240, 250, 260 and 270 ℃,respectively. Apparent activation energy E was 184.80×103kJ/mol, frequency factor A was 1.453×1016.
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Key words:  AH non­noble metal catalyst；disproportionation of gum rosin；kinetic equation