New technological make a small factory on the brink of bankruptcy back to life
It is understood that last year, the technological Stone pilot concentrator has been Chinese Academy of Sciences and Chinese experts hydrometallurgical application association leaders scrap steel concern, with the support of the relevant departments of Yunnan Province, meanwhile, has been Kunming Shilin County supported by an ordinary small concentrator in April 2010 through technical innovation, so that the plant back to life. Later renamed Shilin pilot processing plant, and as Institute of Process Engineering test base.
Xu Yulu that because of the low grade iron ore (~ 33%), harmful elements (sulfur, phosphorus, arsenic) seriously overweight and 90% are in addition to magnetite (Fe3O4) of red, brown, phosphorus oxide iron (Fe2O3) characteristics, in a state where the world is no better beneficiation technology, makes the ore has been in a "difficult", "selected not optional," the difficult times that of native iron ore production available 30% of the stone and iron powder shortage actual requirements, and the remaining 70% (native iron ore, iron powder to 50%), iron and steel scrap to 20%) all rely on imports. Seriously affect production costs and restricts the development of China's steel industry and the national economy.
How effective means to solve the low-grade iron ore in the iron-containing high-grade enriched to the problem? How to effectively means the harmful elements in iron smelting down to the standard question? How to effectively means waste iron from the iron content of more than 15% of the original raw iron ore, metallurgical waste, chemical industry waste enrichment compliance issues? To solve these problems is to engineer Xu Yulu quest objectives.
According to the preliminary results of 2010 for the national state-owned steel, sulfuric acid production enterprises surveyed China Iron and Steel Association used to display the application: accumulation only in state-owned enterprises have more than 6.2 billion tons of iron ore tailings, slag over 900 million tons of sulfuric acid, and these waste per year It takes on the management and maintenance billion in funds. Not only does it have a negative impact on the environment, with a big problem is the state and enterprises need to solve.
徐玉禄 from the 1980s began to study, in 2006, he worked hard mineral processing and beneficiation technology can not overcome, through years of research and development, and ultimately overcome the world beneficiation problems and create a lean iron ore beneficiation hydrometallurgical chemical magnetization technology.
