The influences of concentration of non-ion polyacrylamide, aluminium chloride hexahydrate and pHon the pretreatment process before filtration of sisomicin fermentation broth were studied with orthogonal experiment toobtain the optimal conditions.

Study on chlorination of sucrose 6-acetate;

Synthesis of p-Chlorotoluene from Toluene by Orientated Chlorination;

Modification of trans-1,4-polyisoprene through chlorination;

The competition between addition and substitution in vapour phase chloridization reaction of prolence is analyzed on the base of essential principle in chemical thermodynamics and kinetics.

It is indicated that the solution grafting or solution chloridization process will result in seriouspollution for the environment; the melting or solid phase grafting and chemical cross linking process will bring many side-ef-fects; while the radiation crosslinking process has a higher cost.

The dye intermediate 2,6-dichloro-4-nitroaniline was prepared by direct chloridization of nitroaniline in the solution of hydrochloric acid.

Discusses the technology with double caldrons in series in the chloration process of the technology of producing O chlorobenzaldehyde.

A mathematic modelling of gas catalysis kinetics of m phthalic nitrile chloration reaction is established based on the hypothesis and simplification of the reaction.

Study on Collection and Use of Mother Liquid of Chloridizing 2,6-Dichloroaniline;

The microwave heating was used to the chloridizing roasting of nickel-bearing garnierite ore by FeCl3.

A process of chloridizing fuming in the system MnO2-NaCl-H2SO4 was used to extract gold from Beiya Gold Mine, Yunnan Province.

he synthesis of polyisobutylene aminate by chlorization has been studied.

A brief review is given for the chlorization of organic compound with SOCl 2,especially, the chlorization of carboxylic acid,substitution of hydoxyl group,carbonyl group,methlyene group and C,N,S,P,Si atoms.

Income on investment was estimated for the chlorization-hydroly sis.