This paper described the technique of the sulfonation using the liquid sulfur trioxide as a sulfonating agent. The advantages and disadvantages by using this process were pointed out.

叙述了用液体三氧化硫作为磺化助剂的磺化技术，同时，指出了该项技术的优缺点。

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This paper described the technique of the sulfonation using the liquid sulfur trioxide as a sulfonating agent. The advantages and disadvantages by using this process were pointed out.

叙述了用液体三氧化硫作为磺化助剂的磺化技术，同时，指出了该项技术的优缺点。

youdao