It is difficult to find pure copper in nature now. How is copper refined and manufactured?

It is difficult to find pure copper in nature now. How is copper refined and manufactured?

First, workers spray iron oxide ore with diluted sulfuric acid solution. After a few months, the solution will penetrate and dissolve copper. The copper solution will flow into a tank, and then the essential oil pump will transport the copper solution to the factory. The copper solution is connected with the organic medium in the channel and floats on the surface. Then workers add acidic solution, which can increase the concentration of copper and make it a conductor. Next, these copper solutions will continue to be transported to a continuous tank containing pure copper starting sheets, also known as cathode plates. Then the worker sends the current into the tank, and the current will be absorbed by the cathode plate. At the beginning, the cathode plate was only very thin, but after ten days, the cathode plate will gradually become thicker and the thickness will become 2.5 cm thick. At this time, the weight of each cathode plate will reach 125 kg, and the purity will reach 99.99%, which is very important for making electronic products with copper, but it is difficult to decompose in copper sulfide.

Secondly, starting from this half-shaped model mining machine, the steel grinding balls in the giant drum grind wet stones into broken stones, and the broken stones slide down into the oil hole conveyor belt, which will filter out smaller broken stones, and these smaller stones will continue to be sent to different mills. When all the stones are ground, the factory will add chemicals to wrap the same molecules and mix them with bubbles. Mud flows into the flotation tank, and the ancient wind makes the copper ore with bubbles absorb the chemicals in the outer fruit. Then the bubbles bring the minerals to the top of the water tank and let it overflow slowly. Filter out these spilled solutions, and there will be a gold mine containing 25%-30% copper. These gold mines will then be sent to refineries, and the gold mines will be transported to several iron shops for spreading, and then workers will add tin sand to make layers of placer and gold mines. Tin sand is a kind of cosolvent and purifying agent, which is used to extract gold ore. In a high-temperature furnace, thin sand will melt to form slag, which can absorb iron and other unnecessary minerals, and then the slag will meet. The floating copper will sink, and now the purity reaches 60%, and then it will be sent to the second furnace, which will increase the purity of copper to 98%, but the purity will reach the highest purity value.

Third, the crane will send the hot copper liquid to another furnace for further purification. In this furnace, the purity will be increased from 98% to 99.4%. The dissolved copper flows out of the furnace and into the rotating mold. The mold casts copper into a rectangular plate, also known as anode copper. These rectangular plates will be used as positive electrodes, and then electrolytic refining will be carried out to finally improve the purity of copper. The copper in the mold began to cool, and the sprayer sprayed water on them to speed up the cooling. After cooling and hardening, copper becomes anode copper. Then the hydraulic cylinder pushes them out of the mold, and then the conveying system adds them up and sends them to wash away the non-stick substances. These non-stick substances are used to make the copper plate easier to take out. For the convenience of the machine, the hooks formed in the molding process are also lifted and sent to the refinery. In the refinery, current is introduced through this tank to take out the residual impurity current of the copper plate. Only the same gravity will start on the thin plate, and all impurities will fall to the bottom. At this time, the purity also adsorbed on the thin plate will reach 99.99%, which is the purity required by wire manufacturers.

Fourth, the workers sent the sheet into a towering vertical well of the furnace. Pure copper melts when it is interrupted, flows to the bottom of the furnace, and then is sent to an insulated metal channel to remain dissolved, and then poured into an upright mold, which will shape copper into a rectangle and turn it into a copper handle. Copper handles can be used to make copper sheets or pipe parts. The copper handle that just came out of the mold is about six meters long. The conveying system will send them to the circular tool and then cut them into the length required by customers. After stacking and labeling, these high-purity copper handles can be shipped to the manufacturer. Of course, this factory will also make pure copper into strips, which are more suitable for making wires. The opening of the molten copper layer is left in the mold, then it is cooled with water to form a continuous saw blade, and then the rectangle is turned into a circle with a grooved roller, and its diameter will be greatly reduced. When the copper enters the groove, it will become a copper strip with a thickness of eight millimeters, and then. After the copper bar comes out, the machine will roll into a roll and put it neatly in the steel shaft. Then the machine will compress the coil, so that it won't take up more space during transportation. Finally, the copper wire of the product is pressed by a top press and reinforced with reinforced plastic rope.