This paper systematically introduces the recent progress in the study of deep-penetrating geochemical migration methods and mechanisms in the international exploration community, with the focus on introducing the new models and theories of vertical migration of elements, including the "reduced chimney" model, "electrically charged storm cell" model and pump pressure effect mechanism.

Effects of reducing agents on NO reduction over Ag/Al_2O_3 catalyst;

The results showed that NO reduction and NO oxidation.

Combustion experiments on Shenmu bituminous coal and Geliping blind coal were carried out in a high-temperature horizontal twin-tube quartz stove,and NO volume fraction was measured in real-time during the combustion to investigate the effect of magnesium acetate on NO reduction.

The Treatment of Wastewater Containing Cr~(6+) Through Electroanalysis-deoxidization;

Study on technique of separation of Mn-Ag oxidation ore with amylum by degradation deoxidization;

Several programs are contrasted by experiments and the process that neutralization-deoxidization-P204 extraction-stripping with sulfuric acid-oxidization-V2O5 deposition is proved the best route.

Study on reducing silver through solid phase reaction();

Electric arc furnace(EAF) dust with carbon-containing pellets direct reducing technology was studied and expanding experiment in laboratory was achieved.

Investigated the electric arc furnace(EAF) dust with carbon-containing pellets direct reducing technology,carried out the expanding experiment in laboratory,and got the better parameters of roasting reduction method: excess coefficient of carbon is 1.

Comparison of kinetics of acid violet red B reduced by Pd/Fe and normal Fe~0;

390g o-nitrophenol was reduced by 1.

Coke powder is used to reduce high aluminum pulverized coal by adopted carbon tube resistance furnace between the temperature of 1 950℃ and 2 200 ℃ It shows that if reduction temperature is higher than 2 050t, AkOs in high aluminum powder ash can be reduced obviously.