The anti_atmospheric tarnishing behavior of copper passivated with BTA majored set of compound passivators has been studied systematically.

Effect and mechanism of the heavy metals absorption by passivator;

With the boric acid,borax and ZBS as passivator,a series of experimentation to review the passivator adsorptive capacity,the passivator breed and coke quality influenced to the coke thermal performances.

The research results on coke passivator in China are summarized.

On the basis of comparing domestic and foreign black passivators, the mechanism of passivator,the composition of passivation solution, blackening agent, passivator, buffer and stabilizer are further studied.

The development of the passivating agent containing rare earths is introduced, its application efficiency and passivating mechanism are described, and the prospects for study of passivating agent containing rare earths are discussed.

An acrylamide(AM)/potassium acrylate(AAK) copolymer with high molecular weight was prepared at room temperature by inverse emulsion polymerization using cyclohexane as solvent,SPAN80/OP10 as compound emulsifier,potassium peroxysulphate (KPS)-tetramethyl ethylene diamine (TMEDA) as redox initiator.