New method of preparing polyiron silicate sulfate flocculants from bauxite sludge and pyrite cinder;

The polysilic aluminium ferric flocculants were prepared from bauxite sludge.

The polyaluminium silicate sulfate flocculants was prepared by extracting SiO_2 and Al from bauxite slag.

In this study, SiO2 was extracted from bauxite slag and changed into water glass.

Study on application of the aluminum sulfate dregs for modification of polypropylene;

Study on mechanochemical techniques for surface modification of aluminum sulfate dregs;

White carbon black was prepared using aluminum sulfate dregs.

Main minerals in the aluminum sulfate tailings are kaolinite and bochmite AlOOH.

magnetic-separation Preparation of high quality magnetite concentrate from pyrite cinder by composite pellet reduction-roasting and;

Study on recovering Cu,Zn from pyrite cinder with bioleaching method;

The experiment and industrial application of recovering iron concentrate from pyrite cinder with vertical magnetic separator with pulsating vibration magnetic field were introduced.

Preparation of high purity ferrous sulfate from sulfuric acid residue

Iron trichloride purifying agent was prepared by using the low density Hydrochloric acid(density is approximately 20%-30%) recycled from Zunyi Titanium Factory to react with sulfuric acid residue.

A sulfuric acid residue is used for absorbing the chlorine emissions to make FeCl_3 in the laboratory,acid gas HCl within the chlorine emissions and Fe_2O_3 in the sulfuric acid residue are used for carrying on the counteraction reaction, oxidizability of Cl_2 is used for oxidizing Fe~(2+)in the sulfuric acid residue to Fe~(3+),making it to form product FeCl_3.