Stone coal vanadium ore roasting technique won a patent

August 12, 2010, the State Intellectual Property Office approved the company declared "a tunnel car-bottom furnace roasting the stone coal vanadium ore technique" as Chinese invention patents,

which is achieved on the basis of our company made semi-industrial tests successfully for one Gansu company.The main characteristics of stone coal vanadium ore is high ash content, high density, low heat, compact structure, high fire, nonflammable and hard to complete combustion, hard grind, we use car bottom furnace to conduct oxygen-enriched combustion with high strength, vanadium conversion rate is much higher than other techniques and can achieve industrial production , labor intensity greatly reduced , environmental pollution is greatly reduced.