Coal resources are my country’s industrial raw materials and important energy sources, and coal preparation technology is the technical source of energy saving and ecological environment protection in coal production. Therefore, coal preparation technology directly affects sustainable development strategies. With the further improvement of the degree of coal mining mechanization in my country, the proportion … Read more
Tailings are “wastes” discharged by mining enterprises under certain technical and economic conditions. The development and utilization of a large number of tailings accumulated over a long period of time can effectively alleviate the pressure on resources and the environment. In production, the properties of tailings ore are different, and the mineral composition, specific gravity, … Read more
Zircon has the characteristics of low acidity, and high melting point, can be combined with all organic and inorganic sand binders, and can be used as a molding substrate for sand casting and investment casting. It is widely used in the fields of aerospace, military industry, nuclear reaction and atomic energy, and it is also … Read more
At this stage, the main methods used in the deep mining of gold mines in China are the open-pit mining method and the underground mining method. So far, China has mastered more than 30 methods of deep mining gold mines. Each deep gold mining method has its own advantages and disadvantages. Gold Mines Deep Mining Methods … Read more
A tailings pond is a place composed of dams to intercept valley mouths or enclosures and is used to store metal or non-metal mines for ore sorting and discharge tailings or other industrial waste. A system of structures constructed for tailings disposal is called a tailings facility. In this article, we will introduce the composition, … Read more
Adjust the distance between the magnetic drum and the dividing plate The distance between the separation plate and the magnetic drum is an important parameter in the pre-selection process. The smaller the distance between the separation plate, the better recovery of the lean magnetite blocks, which reduces the utilization rate of ore resources; the separation … Read more
Flotation of lead-zinc sulfide ore Lead and zinc are one of the earliest metals extracted by humans from lead-zinc ore. They are widely used in the electrical industry, machinery industry, military industry, metallurgical industry, chemical industry, light industry and pharmaceutical industry and so on. In addition, lead metal also has many uses in the nuclear … Read more
Fluorite is commercially named fluorspar composed of calcium fluoride (CaF2). It is the principal source of fluorine. The same is used in the production of hydrofluoric acid, which is used in a wide variety of industrial applications including glass etching. Fluorite tends to occur in well-formed isometric crystals, forming cubes and octahedrons. It also occurs … Read more
Brief history of extracting tin from tin ores In nature, the tin ore are existing in sand or alluvial raw material, this kind of tin ore is called sand tin or alluvial tin, those raw materials may be stone, sand, gravel, soil, sticky clay, some times with other magnetic iron, tungsten, ilmenite, hematite, monazite, zircon … Read more
The magnetic separation process is mainly to carry out a three-stage magnetic separation treatment on the ore powder and then go through the wet material magnetic separation. The finished iron ore concentrate powder is obtained. Generally, the iron content of the ore is 35%. After magnetic separation by this method, the iron content of the … Read more