sulfonating agent

Synthesis of Sodium Cyclamate Using R 3N · SO 3 as Sulfonating Agent

用R3N·SO3为磺化剂合成甜蜜素的新工艺研究

The optimum conditions for synthesizing sodium cyclamate by using sulfur trioxide dioxane as sulfonating agent were investigated . The yield of sodium cyclamate is around 94.8 % and the purity is more than 98.2 % .

以三氧化硫·二氧六环作磺化剂合成甜味素，取得了最佳工艺条件，总收率可达94.8%，产品纯度在98.2%以上。

The influences of reaction temperature and amount of sulfonating agent on sulfonating reaction were investigated .

考察了反应温度、磺化试剂用量对磺化反应的影响。

The optimum sulfonation conditions were determined based on the study of the amount of sulfonating agent , temperature and reaction time .

探讨了磺化剂用量、反应温度、反应时间、反应介质等因素对产物磺化度的影响，确定了磺化反应的最佳工艺条件。

In the reaction of sulfonation , the azeotropic water removing , sulfuric acid was used as sulfonating agent .

在磺化反应中，采用共沸除水硫酸磺化法。

The target product was synthesized by using chloroacetic acid and ethyl chloroacetate as raw material and sulfite sodium as sulfonating agent .

我们分别以氯乙酸和氯乙酸乙酯为原料，亚硫酸钠为磺化剂合成了目标产物。

After optimization ( organic solvent ) of dissolution-precipitation separation method , effective removal of residual sulfonating agent and high yield ( over 96 % ) were achieved .

优化了有机溶剂溶解-沉淀分离方法，有效地去除残留磺化剂，并有较高的收率（96%以上）。

The results showed that the degree of sulfonation increased with reaction temperature and amount of sulfonating agent increasing , Tg and water absorption of SPS enhanced with increasing of sulfonation degree .

实验表明：随着反应温度的提高及磺化试剂用量的增加，产物磺化度有不同程度的增加；

The sulfonated poly aryl ether ketone ketone ( S PEKK ) with various sulfonation degree was prepared by reaction of PEKK with sulfuric acid as sulfonating agent and solvent .

以硫酸为磺化剂，将聚芳醚酮酮进行磺化制得了磺化聚芳醚酮酮（SPEKK）。

The results show that the method which synthesize sulfoacetic acid disodium by using chloroacetic acid and ethyl chloroacetate as raw material and sulfite sodium as sulfonating agent by nucleophilic substitution reaction is feasible .

结果表明：以氯乙酸和氯乙酸乙酯为原料采用亲核取代反应合成磺酸乙酸钠是可行的。

This choice fuming sulfuric acid ( 50 % ) as sulfonating agent obtained the highest content of active matter , choose one alkyl ether and fuming sulfuric acid molar ratio of 1.0:1.6 more appropriate product to 58.4 % active matter content .

本文选择发烟硫酸（50%）作为磺化剂所得的活性物含量最高，选择单烷基二苯醚与发烟硫酸摩尔比为1.0：1.6较为合适，产品活性物含量达到58.4%。

An experiment plant for sulfonation reaction was designed in this paper . In accordance with the principle of sulfonation , the dodecylbenzene was used as the material and SO 3 vaporized from 65 % fuming sulfuric acid as the sulfonating agent , and the art conditions were studied also .

本文按磺化反应原理设计了一套以十二烷基苯作为原料，以65%的发烟硫酸蒸发得到的SO3气体作为磺化剂的磺化反应实验装置，并对工艺条件进行了研究。