o-Chlorobenzaldehyde,which was a fine chemical product widely used in pesticide industry,pharmaceutical industry and dyeing industry,was prepared from the residual liquid generated in the restification in the production of o-chlorobenzyl chloride by chlorination reaction,hydrolysis reaction and distillation.

6-Chloro-5,12-naphthacenequinone was synthesized from 2-(1-hydroxy-2-naphthyl)carbonylbenzoic acid by chlorination reaction using a mixture of phosphorus pentachloride and phosphorus oxychloride as a chlorating agent and then by ring-closing reaction using sulfuric acid as a dehydrating agent.

Advances on molecule-bolt selective monochlorination and reaction-separation coupling techniques for chlorination reaction in the world were introduced, and the control technology which achieved high selectivity was showed.

The influence of liquid chlorine quality on the end of paraffin chlorination and the solutions;

Preliminary Research on Mechanism of the Isomerization/Chlorination of O, O-Dialkylthiophosphate (-onate)with Phosphorus Oxychloride;

Isomerization/Chlorination of S-Alkyl(Aryl)O,O-dialkyl Dithiophosphate ——A New Method for Synthesis of S-Alkyl S-Alkyl(Aryl) Dithiophosphoric Acid Derivatives;