The method determining the chemical reaction speed using reacting time of (NH4)2S2O2 with KI is found through theoretic analysis and experiments.

The course and mechanism ofthe oxidization,and their influence on the separation of minerals by flotation have been a major study subject in the field of the sulphide mineral flotation,In this study,a sequence of oxidization rate for three sulphide minerals has been established according to the deta of lattice energy, oxygen consumption and exchanging current density.

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;