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Click to add WeChatThere are many types of copper ores, with more than 200 types, among which chalcopyrite accounts for more than 70%. It is a key copper ore to be developed. In addition, there are chalcocite and bornite, etc. Because copper itself has Good floatability is often achieved by flotation method. At present, the chalcopyrite flotation methods commonly used in mineral processing plants mainly include mixed flotation, full priority flotation, partial priority-mixed flotation, etc. There are several types of flotation, let’s learn about them together below.
Mixed flotation of chalcopyrite , is to first select various useful minerals present in copper ores through flotation to obtain mixed concentrates, and then use the method of preferential flotation of copper to suppress other minerals to obtain qualified copper concentrates. The tailings obtained are used to obtain other useful minerals through other mineral processing methods.
This flotation method is mostly suitable for processing minerals with low raw ore grade and simple ore quality. The process is simple, the grinding cost is low, and the dosage of chemicals is small. However, this method is more suitable for the separation of other useful minerals. difficulty.
The form of full-priority flotation for chalcopyrite There are two main types. One is to flotate copper ore by adding lime to suppress associated minerals such as pyrite. However, this process consumes a large amount of chemicals and will also reduce the grade of copper concentrate and the associated Au, Ag, Recovery rate of rare and precious metals such as Mo.
The other is to use an efficient collector to capture copper and float out chalcopyrite under neutral or weak alkali conditions. This method is suitable for processing simple components and few useful minerals that can be recovered. And there are minerals with large flotation differences among minerals.
Partial priority-mixed flotation chalcopyrite is to first use rapid flotation method to select easily floating copper ore stone to achieve early and fast harvest, then mix and flotate copper and other useful minerals to obtain mixed concentrate, and then flotate and separate the mixed concentrate to obtain qualified copper concentrate and other useful minerals.
This flotation method is mainly suitable for treating some easily separated chalcopyrite in minerals. The amount of chemicals used in the flotation process is small and the flotation index is high, but a large number of flotation equipment is required.
etc. When sorting chalcopyrite, there is no need to add adjusters, inhibitors and activators. When sorting minerals with good floatability, they can float naturally without being affected by inhibitors. Not only that, the use of activators is also avoided. However, this method requires the consumption of a large amount of other chemicals and equipment. This flotation method is generally suitable for processing polymetallic chalcopyrite, and the ore must have a mineral with good floatability.
The above is an introduction to the commonly used chalcopyrite flotation methods. It not only introduces the characteristics of its process methods, but also introduces the types of copper ores suitable for each method. In actual mineral processing plants,how to choose the process method depends on the properties of the copper ore, so it is recommended to carry out ore dressing test analysis to confirm the composition of the ore, and then according to the actual situation Design a suitable copper ore beneficiation method to ensure that copper and other swimming minerals are effectively recovered.
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