JXSC Machinery

The Processing of Copper Ore Beneficiation

In the development and utilization of copper resources, the grading operation of the copper ore beneficiation plant is also an important production link in the separation of copper ore. As the difficulty of copper mining and sorting increases, the requirements for screening efficiency and classification efficiency are getting higher and higher. Therefore, efficient screening and grading equipment is an inevitable choice. The classification equipment of copper ore beneficiation plant mainly has two types: spiral classifier and hydrocyclone: ​​spiral classifier is mainly used for closed-circuit operation with grinding equipment, or used for washing, dewatering, desliming, etc., for coarse particles The classification effect is better. As a kind of high-efficiency hierarchical desliming equipment, hydrocyclone is widely used at home and abroad due to its large processing capacity and simple structure.

How to extract copper concentrate from copper mine? The copper ore beneficiation plant uses three processes: crushing, grinding and beneficiation. It’s just that the selection of individual copper ore processing equipment and beneficiation technology will be slightly different. Among them, in the crushing process, the use of three-stage closed-circuit crushing can well complete the work of ore crushing and partial separation, thereby improving the subsequent grinding efficiency; in the grinding process, the two-stage and one-closed grinding process is adopted. It can make the copper ore more fully grind; in the process of beneficiation, the relatively successful new process in recent years is mainly the mixed flotation process. Then the specific copper ore processing equipment processing process of the copper ore concentrator is as follows:

The beneficiation process of copper ore beneficiation plant is basically based on flotation. The flotation process of copper monosulfide ore is generally relatively simple. It is only different from complex copper sulfide ore in the grinding-flotation structure, which affects the beneficiation of copper ore. The recovery factors mainly include mineral composition, mineral particle size, structural structure, the number of useful and harmful components and their storage status, the percentage of various minerals, the degree of oxidation of minerals, the level of mineral processing and equipment, etc. The following are some effective ways to increase the recovery rate of copper ore concentrators.

The processing technology of the copper ore beneficiation plant includes flotation, microbial leaching, segregation and beneficiation, etc. Single sulfide ore is mostly processed by flotation, and copper ore processing equipment adopts the crushing-grinding-classification-flotation-selection process to select single copper sulfide ore into copper concentrate. However, due to the development and utilization of ore resources, the nature of ore is becoming more and more complex. Therefore, polymetallic sulfide ore can be processed by various methods, such as mixed flotation, priority flotation, mixed priority flotation, flotation, flotation, flotation, flotation, and magnetic separation. Method, flotation method and hydrometallurgy beneficiation method, etc.

At present, most domestically produced copper oxide ore concentrators use sodium sulfide to presulfide, and then use a single flotation method for selection. However, copper oxide ore, which is difficult to select, is difficult to recover in a single flotation process. In order to solve the problem of using this part of resources, many researches have been carried out. The general trend is to adopt a combined process of beneficiation and metallurgy or metallurgical methods. The same is true abroad. The easy-to-select copper oxide ore mainly uses flotation, and the difficult-to-select copper oxide ore mostly uses a combined process.

The flotation technology of copper oxide ore can be divided into direct flotation and sulfide flotation. Direct flotation refers to the direct flotation of fatty acids and their soaps, advanced xanthate and other capture agents, including fatty acids, amines, emulsions, chelating agents, etc., without pre-sulfurization of minerals. As the mining grade of copper ore continues to decline and the number of refractory copper ore continues to increase, it is necessary to continuously improve the level of copper ore beneficiation technology and equipment. The research and application of new flotation methods have created good conditions for the sustainable development of copper ore beneficiation, and it is also a development direction that requires further research.

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