The so-called rare earth ores are called rare earth ores or rare earth elements because they look like earth oxides. They exist in three states in the earth's crust, namely: as the basic constituent elements of minerals, as impurity elements of minerals, and adsorbed in the state of ions On the surface or between the grains of certain minerals. It is precisely because of these existing forms of rare earth ores that rare earth ores often need to be re-beneficiated, and various beneficiation agents are used for beneficiation. At present, the capture agent of rare earth minerals in industrial production beneficiation is mainly represented by h205, but this Medicines have the disadvantage of being expensive. In rare earth industrial production, it is required that the capture agent not only has strong trapping ability and good selectivity, but also has low price and low dosage. Therefore, the research on rare earth beneficiation agents should proceed from the following points.

Reduce the cost of synthetic raw materials

Reduce the cost of synthetic raw materials. For example, the current industrial production of acid is still dominated by the amine method. The amine method has the advantages of simple process conditions and high production rate, but it needs to solve the problems of expensive raw material amine and high product cost. Therefore, reducing the price of amine is to reduce the acid The key to production synthesis cost. The methods for producing amines have their own characteristics. In the synthesis production, a more suitable industrial production method should be adopted according to the actual situation to reduce the synthesis cost of the acid.

Research on drug structure

Research on drug structure. The length of the hydrophobic group r of the collector has a great influence on the collector's fluctuating agent and selectivity. When synthesizing a collector with good selectivity and moderate collection capacity, attention should be paid to selecting the appropriate length of the hydrophobic group r.

combination medicine

Combination potion. Due to the positive impact of the synergistic effect between agents on the flotation process, more and more mineral processing plants have gradually realized the limitations of a single agent, and have obtained huge economic effects from the practice of combining drugs. For example, the selectivity of aromatic net acid to rare earth minerals is better, but as a research on flotation fee carbon collector, its fluttering agent ability is slightly poor, and mixed drugs are used, and aromatic net class has a lower collection capacity than a small amount. The combined use of strong cyclic acid can make up for its shortcomings and show good collection ability; another example, acid collectors have good sorting performance, but are expensive.

The test of mixing with iso-octanol and kerosene shows that the synergistic effect is obvious, and the collection capacity is enhanced under the condition of ensuring the selectivity. This experiment not only reduces the dosage of Xiangmu acid agent, but also reduces the cost of industrial production.