Importance of of Ore Tailing Comprehensive Use

In the last few years, global market when the prices went up, particularly Nonferrous, precious-metal product prices soon.Since 2001, the gold price of $ 255 an ounce, rising to $ 600 now about one gram;Silver by $ 4 an ounce increase to $ 12 an ounce or more;Copper by 15000 RMB\/Mt climbed 71000 RMB\/tonnes;Lead by 4000 RMB\/Mt rose from 13000 RMB\/tonnes;Zinc by 7200 RMB\/Mt reached 30000 RMB\/tonnes;Molybdenum not exceeding 20000 RMB\/Mt increased to 270000 RMB\/lot above.5 year period, the price of goods of non-ferrous metals importance more than twice.
Now our nation’s industrialisation, urbanisation speeded up development phase, mining resource consumption, external dependency is greater.The world commodity prices continue to rise, increasing the mineral resources of production of the company cost required, simultaneously, more resources safety stress.Our the country’s large mineral energy, development and use of long-term accrued great shadowing, canTailings is in a particular technology, mining companies economic circumstances
According of statistics, 2000 years old, our land mines production total of 5.026 billion tonnes of tailings, among them, iron ore and tailings quantity in 2.614 billion tonnes, the principal of non-ferrous tailings quantity of 2.109 billion tonnes, 272 million tonnes of gold from tailings, other 031 million tonnes.In 2000, the mine tailings in the emissions of 600 million tonnes, under this, depending on the amount of current atilings nearly 8. billions of tonnesBecause my country mines the start, the technological development is unbalanced, another period of mining metallurgical and technological gap high, many valuable resources of tailings stored in.Experts predicted that the gold from tailings ponds with silver usually 0.2-0.6 g\/tonne;Iron mine tailings of the full metal rank 8-12%;Copper mine tailings in copper 0.02-0.1%;Lead-zinc ore tailings with Zn 0.2-0.5%.Tailings in the region of significant resources, use of good value. To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like ore beneficiation, Henan Hongxing is always doing the best in products and service.china magnetic separator:http://www.hxjq-crusher.com/60.html
Secondary recovery of valuable metals from tailings is an important aspect of tailings comprehensive utilization. An important characteristic of mineral resources in China is single, less, associated raw mine. Due to poor technology, equipment and poor management systems in the past, tailings containing a variety of valuable metals and minerals, all of which have not been fully recovered. In the area of comprehensive iron ore tailings recovery, iron ore tailings generally contains iron 8%-12%. If we estimate according to the national available heap memory 4 billion tons of iron ore tailing, the iron abundance is still 3. 21~4. 8 billion t. If the recovery rate is 50%, we can obtain 1.61 240 million tons of iron resources. It is a considerable value; In comprehensive recovery of nonferrous metal mine tailings, the vast majority of China Nonferrous Metal Miningstone crusher machine are intergrowthf type and concomitant type. The valuable metals in tailings are of useful minerals and extremely rich.
Therefore, it is of great practical significance for the recovery of valuable metals and minerals in the non-ferrous metal mine tailings; In terms of gold mine tailings comprehensive recovery, most of current gold grade in the gold mine tailings is more than 0.5 g/c, some of them even as high as 45/t. At the same time the gold tailings also contains Cu, Pb, Zn, s, Fe, Ag, Sb, Wu and other valuable metallic elements, so the value of comprehensive utilization is very high.