In 2011, under the encouragement of the autonomous region government to boldly "go global", the company responded positively and the chairman decisively made the decision to invest 25 million tons of Electrolytic Copper, 60,000 tons of Sulfuric Acid and 5000 tons of gold in Africa's DRC for a total investment of 150 million U.S. dollars Ton of cobalt metal Kai Peng mining cobalt cobalt smelting plant. The factory has been put into production, with an annual sales income of 800 million yuan, more than 500 jobs for the Congolese gold, an outward appearance of the friendly image of China and an active role in alleviating the shortage of resources in the country.
Blister copper (99% of copper) was preliminarily made into a thick plate as an anode, pure copper was used as a cathode, and a mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) was used as an electrolyte. After the power is turned on, copper is dissolved from the anode into copper ions (Cu) to move to the cathode, electrons are obtained after reaching the cathode, and pure copper (also called electrolytic copper) is precipitated at the cathode. Blister copper impurities, such as copper than the active iron and zinc will be dissolved together with the copper as ions (Zn and Fe). Since these ions are not precipitated more easily than copper ions, the potential difference between the electrodes can be avoided by electrolysis to prevent the deposition of these ions on the cathode. Inactive than copper impurities such as gold and silver deposition in the bottom of the cell. This produced copper, known as "electrolytic copper", high quality, can be used to make electrical products.
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