How can copper be refined from copper????

Fe+CuSo4=FeSo4+Cu Hydrocopper smelting is currently mainly used to process copper oxide ore. There are copper oxide ore direct acid leaching and ammonia leaching (or reduction roasting after ammonia leaching) and other methods; Acid leaching is widely used, and ammonia leaching is limited to the treatment of bound oxide ores with high calcium and magnesium content. Sulfide ores are mostly treated by sulfuric acid roasting-leaching or direct leaching with ammonia or chloride salt solution.

The sulfation roasting-leaching method is to convert the copper in the concentrate into soluble copper sulfate for dissolution; The ammonia leaching method is to convert copper into copper ammonia complex and dissolve, and the leaching solution is reduced with hydrogen in an autoclave to make copper powder, or electroelectric copper is prepared by solvent extraction-electrowinning method; The chloride salt leaching method converts copper into a copper-chlorine complex into a solution, and then electrolyzes the diaphragm to obtain electrolyzed copper. Copper oxide ore acid leaching process Copper oxide ore is generally not easy to be enriched by beneficiation method, and is mostly directly leached with dilute sulfuric acid solution, and the copper content of the obtained solution is generally 1 5g l, which can be extracted by sulfide precipitation, neutralization and hydrolysis, iron chip replacement and solvent extraction-electrowinning. In recent years, the extraction-electrowinning method has developed rapidly.

The main processes include: Copper is extracted from a kerosene solution of oxime chelating extractants (LIX 64 N, N 510, N 530, etc.) that are selective for copper, and the copper enters the organic phase and separates from impurities such as iron and zinc. Copper was extracted with a higher concentration of H2SO4 solution to obtain a solution containing about 50g L of copper.

After the reverse extraction, the organic solvent is washed and returned to the extraction process for use. Electrowinning copper sulfate solution is used to obtain electroelectric copper, and the electrolyzed liquid is returned as a reverse extraction agent.

Generally electrolytic. There are cu in the anode mud, as well as all kinds of ***, but those are relatively few. .The copper content is already very small, there is a certain iron content, but it is not too big...

First of all, various metals with copper are gathered together, and then sanded with sandpaper and then exercised at high temperatures, and copper ore is mined directly with an excavator.

The copper mine has workers underground, and then it has to be taken to the factory for rough processing, filtering out some unwanted impurities, and then taken to precision instruments for further processing.

The main methods of copper refining are: fire copper smelting and wet copper smelting.

1. Pyrometallurgical copper smelting: pyrometallurgical copper smelting is the main method of copper production today, and more than 80% of the world's copper is extracted from copper sulfide concentrate by pyrometry. The most prominent advantages of pyrometallurgy are strong adaptability, low energy consumption and high production efficiency.

2. Wet copper smelting: Wet copper smelting is a copper extraction method carried out in solution. Whether it is a poor or rich ore, oxide ore or sulfide ore, copper can be extracted by hydrometallurgy.

The advantage of water copper smelting is that the equipment is simple, easy to operate, do not need to use air blast, smelting equipment, copper can be extracted at room temperature, save fuel, as long as there is bile water, this method can be applied to produce copper.

Bronze Age:

Copper is a transition element with atomic number 29, the chemical symbol Cu. Pure copper is a soft metal, the surface is reddish-orange with metallic luster when it is first cut, and the elemental color is purple-red. Copper has good ductility and high thermal and electrical conductivity, so it is the most commonly used material in cables and electrical and electronic components, and can also be used as a building material and can be composed of a variety of alloys.

Bronze ceremonial instruments: China has a long history of using copper. About six or seven thousand years ago, the ancestors of the Chinese discovered and began to use copper. In 1973, a semicircular residual copper piece was unearthed at the Jiangzhai site in Lintong, Shaanxi, which was identified as Huang Hao resistant copper.

In 1975, a bronze knife was unearthed at the Linjia Majiayao Cultural Site in Dongxiang, Gansu Province (about 3000 BC), which is the earliest bronze found in China and proves that China has entered the Bronze Age.

Compared with West Asia, South Asia and North Africa, which entered the Bronze Age about 6,500 years ago, the arrival of the Bronze Age in China is relatively late.

The raw materials for copper smelting are mainly copper minerals, ores and concentrates and recycled copper.

1. Copper minerals, ores and concentrates.

There are more than 200 kinds of copper-bearing minerals found in nature, but there are only about 20 kinds of important minerals, except for a small amount of natural copper, mainly primary copper sulfide and secondary copper oxide minerals.

The minimum copper content of industrially applicable copper ore has been reduced from 2% to 3%. The common associated metal minerals in copper sulfide ore are pyrite, followed by nickel pyrite, sphalerite, and galena. According to the different types and quantities of associated minerals, they are called copper-zinc ore, copper-lead ore, copper-nickel ore and so on.

Common associated minerals in copper oxide ore are limonite, hematite, siderite, etc.

The associated gangue minerals in copper ore are commonly quartz, limestone, calcite, etc.

The copper content in the raw ore is generally very low, and it is not suitable for direct copper extraction, and it is necessary to obtain copper concentrate with high copper content through beneficiation. Copper concentrate often contains more *** elements such as au, ag and platinum group elements.