Study on producing yellow phosphorus with electric furnace process taking phosphate rock powder as raw material;

In the phosphorus production from phosphorite (lump) by electric furnace method,the smashed or powdered phosphorite, which occupied 5% - 15% of raw mineral per MT phosphorus product, will be produced.

Through the analysis and study on crushing system in concentrator, and combined with the production condition of crushing equipments, three transformation plans were pointed out.

Many factors have influence on ore crushing and grinding, but the most important factor is the macchanical property of the ore, for it is not only the basic factor determining ore's breakage but also the foundation of any crushing behavious.

The paper introduced the technological transformation of ore crushing,grinding,floatation,tailings transportation process and equipments.

Theoretical analysis of using acidic waste water to float phosphate rock and its practice;

Effect of additive on Jinhe phosphate rock decomposition;

Application of WF-01 collector in flotation experiment of Saudi Arabia phosphate rock;

Relationship between fineness of phosphate ore and its acid hydrolysis conversion rate;

Application of surfactants in low temperature flotation of phosphate ore;

Approaching the flotation and reverse flotation problems of a phosphate ore through particle size analysis (Ⅰ)-tests with fresh water;