庚烷与液态三氧化硫反应特性的研究

STUDY OF THE SULFONATION REACTION BETWEEN HEPTANE AND LIQUID SULPHUR TRIOXIDE

研究了庚烷与三氧化硫在１ ，２二氯乙烷溶剂下的磺化反应。采用阳离子交换树脂测定反应总酸量的方法，讨论了滴加速度、反应温度、反应物浓度及其相对比例对磺化程度的影响，发现其磺化程度主要与反应物浓度、反应物相对比例有关，而阳离子树脂交换滴定测定反应总酸量的方法与传统的滴定二氧化硫的方法相比，具有简单、方便而且准确的优点。此外，还考察了其它直链饱和烷烃的磺化反应。

The sulfonation of linear heptane with sulphur trioxide (L) in the solvent of 1,2 dichloroethane is studied. The effects of temperature, concentration, reactants′ dropping rate and the ratio of reactants have been discussed in this paper. The sulfonation depth is measured by cationic exchange resins titration. It is chiefly affected by the concentrations and ratio of reactants and has no relation to reaction temperature and dropping rate.