In the reaction of sulfonation, the azeotropic water removing, sulfuric acid was used as sulfonatingagent.
在磺化反应中，采用共沸除水硫酸磺化法。
2
The influences of reaction temperature and amount of sulfonatingagent 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。
3
This paper described the technique of the sulfonation using the liquid sulfur trioxide as a sulfonatingagent. The advantages and disadvantages by using this process were pointed out.