copper ore beneficiation plant

Mined from the copper in copper ore after beneficiation copper higher grade copper concentrate or copper ore, copper concentrate needs to be smelting commission in order to become refined copper and copper products, copper smelting in the world There are two main ways: pyrometallurgical and hydrometallurgical.

1. pyrometallurgical produce fiery molten smelting and electrolytic refined copper cathode, ie, electrolytic copper, generally suitable for high-grade copper sulphide ore.

One of the outside in addition to copper concentrate, copper as the main raw material for refined copper, including old scrap and new scrap, old scrap from old equipment and old machines, abandoned buildings and underground pipes; new copper to from the processing plant were abandoned copper scrap (copper output ratio of about 50%), copper supply is more stable, the copper can be divided into: nude Zatong: grade of 90% or more; Huang Zatong (wire) : copper-containing materials (the old motor, circuit board); copper to produce copper and other similar materials, also known as recycled copper.

2. wet:

A vessel suitable for low grade copper oxide, the production of refined copper is called the electrodeposited copper.

The hydrometallurgical process is:

3. fire and wet process is characterized by

Compare fire and wet copper production process, has the following characteristics:

(1) the latter's smelting equipment, but higher levels of impurities, is a useful complement to the former.

(2) the latter has its limitations, subject to the ore grade and type.

(3) The former cost about 70-80 cents / lb ($ 1540-1760 U.S. $ / ton), the latter is only 30-40 cents / lb (about 660-880 U.S. dollars / ton). ;

Visible in hydrometallurgical technology has considerable advantages, but there are limitations of its scope, not all copper smelting can be the kinds of technology. However, technical improvements in recent years has been more and more countries, including the United States, Chile, Canada, Australia, Mexico and Peru, the process used in copper smelting.

Hydrometallurgical technology to enhance and promote the application, reducing the cost of production of copper, a copper mine capacity in the short term to increase the supply of social resources, resulting in relative excess of the total social supply price of a pulling effect. Period of the 1997 copper price fell from $ 2,600 in 1996 / t high around $ 1600 / t in the current November 1998, and greatly improve the proportion of the hydrometallurgical process led to a large number of low-cost copper market has a direct relationship.