以强酸性阳离子大孔交换树脂Lewatit2620为催化剂，催化α-蒎烯水合反应，获得主要产物α-松油醇。在催化反应中，部分α-蒎烯发生异构化反应，生成单环萜烯，影响松油醇的收率。在搅拌釜反应器内分别考察了催化剂种类、溶剂种类、催化剂用量、反应物配比、温度及反应时间对α-蒎烯转化率和α-松油醇收率的影响。结果表明，优化反应条件为：催化剂用量0.20 g，m(α-蒎烯)m(水)m(溶剂y)＝10.13：2，反应温度333.15 K，反应时间4 h，此时α-蒎烯转化率为98%，松油醇的收率为36%。α-蒎烯直接水合反应的动力学研究具有重要的意义。本文建立拟均相（PH）模型α-蒎烯直接水合反应的动力学，并估算出动力学参数，通过模型得到的计算值与实验值是吻合的，故PH模型适用于α-蒎烯的直接水合反应。用准一级动力学模型确定了各反应的反应速率常数的表达式。
Abstract
A study of α-pinene hydration to produce α-terpineol has been carried out using macropore-strong acidic-cation exchange resin Lewatit2620 as the catalyst. Isomerizations of α-pinene take place simultaneously, changing into monocyclic terpene and effecting the yield of α-terpineol during the catalytic hydration reaction. Effects of variables such as types of catalyst, solvents, catalyst amount, mass ratio of reactants, temperature and reaction time in a stirred-tank reactor on the conversion of α-pinene and yield of α-terpineol were investigated systematically. The preferred reaction conditions were determined as the following: catalyst loading: 0.20 g catalyst / g total soluition, m(α-pinene)：m(water)：m(solvents:y) is 1：0.13：2, reaction temperature 333.1 K, reaction time 4 h.Under this condition, α-pinene hydration works efficiently. the conversion of α-pinene is 98% and yield of α-terpineol is 36%.The kinetics study is the basis of simulation, design, and amplification of industrial reactors, and is one of the main contents of chemical engineering. So the kinetics of the α-pinene hydration reaction has important significance. In this paper, a pseudo-homogeneous (PH) kinetic model was utilized to correlate the experimental data and estimated the kinetic parameters. The estimated kinetic parameters made the calculated results in excellent agreement with the experimental results, indicating that the PH model gives a good representation of the kinetic behavior for the direct hydration of turpentine. A pseudo first order model was used to explain the reaction rate equation
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