Qiaopu introduction of copper raw materials, electrical

Ningbo Qiaopu Electric Co., Ltd. raw materials - copper
Copper is the earliest human use of the metal. Back in prehistoric times, people began to open copper mining and copper used for making weapons, and other utensils with style, use of copper in the early progress of human civilization, far-reaching. Copper is present in the earth's crust and oceans of the metal. The content of copper in the Earth's crust is about 0.01%, in particular copper deposit, the copper content of up to 3-5%. Nature of copper, the majority of compounds that copper minerals present. Copper minerals and other mineral aggregate into copper ore, copper ore mined, after high-grade copper ore and copper concentrate as
Currently the average cost of production of copper in the 1400-1600 U.S. dollars / ton (64-73 cents / lb), period of price decline is a reasonable price to the value of the return, with the smelting process of increasing its share, the price of copper to the will be more far-reaching impact. It was reported that wet copper at the lowest cost only 20 cents / lb (about 450 U.S. dollars / tonne), up 77 cents / pounds ($ 1,697.5 / ton), with an average of about less than 50 cents / lb (about 1100 U.S. dollars / ton). Be noted that in 1995 the average wet copper production costs there are only 39 cents / pound, the recent wet copper average cost of production has increased, mainly due to wet copper process extended to the processing of copper sulfide minerals reason. Wet process is more suitable for processing copper oxide copper mineral and lean ore, and processing sulfide ore minerals and the more or when the mine is located in cold areas, wet copper smelting process, its production cost is higher, than in 50 cents / lb or more.
Since the 1970s China began to study the extraction of copper from low grade copper technology, created in 1983 the first wet copper smelting plant, an annual output of 120 tons, recently the introduction of foreign agents to take the fine copper Xin, together with the local copper industrial development, now has built dozens of small wet smelter, the scale ranging from several hundred to 2,000 tons, annual output of copper, but only 1.5 million tons, which is China's annual output of 1 million tons of refined copper scale of than not enough. China's current copper production costs about 18,500 yuan, far above the world average $ 1,477 (67 cents). "95" during the State Planning Commission and the China Nonferrous Metals Industry Corporation to hydrometallurgy project as a key research project in the Dexing Copper Mine, the Yulong Copper Mine, Copper Mountain big Yetong recorded a few other places to build demonstration plant, After years of hard work, estimated to the wet end of this century China will have greater development of technology, when an estimated annual capacity of up to 5 million tons.
According to statistics, in 1980, the wet copper production of refined copper production accounts for 2.5% of world refined copper in 1994, the proportion increased to 10% in 1997 to an estimated 18%, copper production is expected to eventually wet the proportion will increase to 25 -35%.