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Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details
Gold CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its ore. By cyaniding and carbon leaching crushed gold ore slurry simultaneously, CIL process lower the gold mining operation cost and increase gold recovery rate to a degree of 99%. View details
On October 11, the 3-day CHINA MINING Conference and Exhibition 2019 was conclud...
Most non-ferrous metals are metal sulfides ores, such as lead-zinc ore, copper sulfide, which often coexist with a large number of pyrites. Pyrite is the main raw material for industrial sulfuric acid, but China is a leading manufacturer and consumer of sulfuric acid, so the comprehensive utilization of pyrite plays an important role in lead-zinc tailings recovery. At the same time, improving the recovery of pyrite in non-ferrous metal sulfide ore has the good influence on the whole national economy and mining enterprises.
According to the conventional flotation practice, pyrite is a kind of sulphide with good floatability, which is easily inhibited by lime, sodium hydroxide and sodium cyanide in alkaline environment. Therefore, people often add sufficient lime to the grinder, then preferentially separate lead, zinc, copper and other metals. According to the inhibiting principle of pyrite, iron pyrite can generate a strong hydrophilic thin film with hydroxyl ion on pyrite surface under the alkaline environment. After the inhibition operation, pyrite must be activated in the process of lead-zinc tailings recovery. The conventional activators include sulfuric acid or a large amount of copper sulfate and sodium carbonate. Sulfuric acid has strong corrosive substance, but it is also easy to be over-consumed by carbonate minerals. But because the price of copper sulfate and sodium carbonate is much high and the grade of pyrite is lower, many lead-zinc tailings plants just give up its recycling, which directly wastes resources. It is suggested that using ammonium carbonate to activate the pyrite can obtain the good effect. In a mineral processing plant, the grade of sulfur concentrate reached 40.30%, and the recovery rate was up to 88.64%.
The recovery process of lead-zinc tailings must make good use of various minerals, which not only reduces environmental pollution, but also created economic benefits for enterprises.
Copper ore refers to the mineral aggregate with a certain content of copper ore and can be recycled at the present stage. In general, copper ore is occurred in ore inside as sulfide, and associated with a certain amount of lead and zinc ore. ... [more]
With the rapid development of modern industrial production and the innovation of production technology, consumer goods is growing in frequency and the consumption structure is more complex, which lead to all kinds of consumption accidents and problems, then cause serious infringement on consumers' rights. ... [more]
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© 2017 Shandong Xinhai Mining Technology & Equipment Inc. Technical Support: 北京鑫互联科技有限公司
© 2017 Shandong Xinhai Mining Technology & Equipment Inc.