Flotation emerged as an industrial-scale beneficiation method, which was around the end of the 19th century abroad. Its development mainly goes through the following stages.

First, the full oil flotation method

According to the different lipophilicity and hydrophilicity of various minerals, a large amount of oil is mixed with the slurry, and then the oleophilic mineral adhered to the oil layer is scraped off, and the hydrophilic mineral remains in the slurry to achieve separation. The purpose of the mineral.

Second, surface flotation method

The industrial application appeared in 1892, carefully grinding the dry powder on the surface of the flowing water, the hydrophobic mineral is not easily wetted by the water, relying on the surface tension surface to float on the surface, and accumulating into a thin layer to become a concentrate; Hydrophilic gangue wetted by water flows into the water as waste tailings.

Third, the froth flotation method

At the beginning of the 20th century, the original froth flotation method appeared, which pushed the flotation method forward and appeared many forms of froth flotation.

1. Gas flotation method

2, electrolytic flotation

3. The emergence of flotation reagents by mechanical aeration and agitation flotation method has greatly promoted the development of flotation technology, and their development is interrelated.

EDM Graphite

EDM graphite, also known as graphite block for EDM, is a new type of material, which is now more and more widely used in the precision mold processing industry. At present, in mold processing plants in developed European countries, more than 90% of mold processing electrode materials are graphite. Copper, the once dominant electrode material, has almost lost its advantages compared with graphite electrodes.

Our isostatic graphite and Molded Graphite were tested at the National Electrical Carbon Products Quality Supervision and Inspection Center. The main physical and chemical performance index as follows: the compressive strength--125 mpa, shore hardness -- 65 degrees, resistivity --12 mu Ω m. At the same time, the 10μm,8μm,6μm,4μm products have already began Large-scale production,.and unanimously acknowledged by customers. The 2μm,1μm graphite products are under trial. Our company high quality of isostatic pressing special graphite yield above 90%, far ahead of industry the yield of 70%, the first in the country.