the catalyst is a mixture of phosphoric acid and methyl benzene sulfonic acid, wherein the weight ratio of phosphoric acid and methyl benzene sulfonic acid is (2-6):1;

催化剂为对磷酸和甲基苯磺酸的组合物，其中磷酸与甲基苯磺酸的重量比为（2～6）∶1；

then (iso) butyl gallate was prepared by esterification of alcohol and gallic acid in catalysis ofp methyl benzene sulfonic acid and the reaction temperature was risen in a gradient style.

对甲苯磺酸为催化剂，用梯度升温法，酸、醇直接酯化合成没食子酸正（异）丁酯。

it was found that in the solution of dodecyl benzene sulfonic acid sodium(dbs), effective energy transfer can occur(between) ao and rhodamine 6g even when the concentration of the dyes is very low.

在十二烷基苯磺酸钠水溶液中，吖啶橙与罗丹明6g染料分子间相互作用发生有效能量转移。

the reaction was studied about synthesis of the title compound from p amino benzene sulfonic acid as raw material through acetylation, nitration and hydrolyzation.

以对氨基苯磺酸为起始原料，经过乙酰化、硝化、水解三步来制备标题物。

three kinds of benzene sulfonate were prepared from derivant of benzene sulfonic acid and zinc oxide and element analysis of products was made.

以苯磺酸衍生物和氧化锌为原料，制备甲基苯磺酸锌、对氨基苯磺酸锌、十二烷基苯磺酸锌，并对产品进行了元素分析；

the invention relates to a binary alkyl benzene sulfonic acid rare earth catalyst, a preparation method and the application thereof.

本发明涉及二元烷基苯磺酸稀土催化剂及制法和应用。

methods the control group 70 cases, benzene sulfonic acid amlodipine pieces.

方法对照组70例，治疗方案：苯磺酸氨氯地平片。

the catalyst comprises alkyl benzene sulfonic acid rare earth compound and alkyl aluminium;

该催化 剂由烷基苯磺酸稀土化合物及烷基铝组成；

alkyl polyglucosides were prepared from glucose and lauryl alcohol by one step reaction using p-toluenesulfonic acid and dodecyl benzene sulfonic acid as catalysts respectively.

分别采用对甲苯磺酸和十二烷基苯磺酸为催化剂进行了一步法由葡萄糖和月桂醇制备烷基糖苷的工艺研究。