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1·The synthesis of key intermediate of Gliclazide can be improved by using Potassium borohydride instead of Lithium aluminum hydride. The procedure is suitable for industrial production.

本文对格列其特的中间体氮杂双环盐酸盐的合成工艺进行了改进，使工艺更适合工业化大生产的要求。

2·The technology process and production situation of the chlorine hydride absorption system in potassium sulphate process with traditional sulphuric acid process is introduced.

介绍传统硫酸法生产硫酸钾过程中，氯化氢吸收系统的工艺流程及生产情况。