Tungsten Oxide

In November 13, 2014, Xinshao County, Hunan Province, compiled by the 407 team of Hunan Provincial Geological Prospecting Bureau, successfully filed on the Provincial Bureau of land and resources.  The report shows that the size of the tungsten ore mine in Xinshao County, Hunan Province is a large-scale tungsten mine, proven tungsten resources reserves of 70,400 tons, associated gold, silver, antimony and other metal elements, is expected to mine service life of about 17 years, the total total economic value of about 8 billion yuan. News once broadcast, it led to a warm reaction to the capital market, the listed company's market value increased significantly, because it is the first record of nonferrous metal mineral exploration in Hunan province since 2000, and the reserves are huge. In China, the shortage of tungsten resources is becoming more and more urgent, and the good news is encouraging. Tan Xian tungsten ore is located in the Cao Jia village, Xin Shao county...

Electrical selection method is an important auxiliary way of ore processing, when tungsten ores  are under electrical selection, tungsten ores and cassiterite need to be separated.  With high voltage electrical selection machine, wolframite and scheelite can successfully separated,  sulfide ores and wolframite can successfully separated as well. Because wolframite and sulfide ores are with conductivity, scheelite and tin ores are not with conductivity.  The effect of electrical selection method is not only determined by the conductivity of tungsten, also by three major factors: temperature, structure, and surface states.  1. Temperature: For conductors, the conductivity decreases when temperature increases. For semiconductors like tungsten ores, as the temperature goes high, the bound charge is released by the heat energy, the free electron increases and the conductivity incr...

From dressing industrial progress of history suggests that mineral processing reagents application significance is self-evident. Since its discovery in 1924 xanthate has the function of collecting sulfide ore, the development of the flotation industry started by leaps and bounds, the inundated mineral processing reagents has been invented and created with a steady stream. However, how many dressing agent are they? How to classification, which is often confused about. In western countries, most of dressing agent were issued in the form of “patent certificate”. Therefore some names are quite chaotic, sometimes it only some numbers. At the same time, the dressing agent is more cheaper in general, other impure industrial by-product, its composition is not very sure; And several kinds of medicine emulsion mixture or the product of interactions, often name after the new potion. According to a German experts statistics, there are 7702 species the name of the material can be us...