What are the characteristics of copper molybdenum separation? The manufacturer of copper molybdenum separation inhibitor will explain to you

The manufacturer of copper molybdenum separating agent thinks that copper molybdenum separation can be carried out after pretreatment, and an important aspect is the selection of flotation agent. Commonly used agents can be divided into inorganic and organic substances. Inorganic substances are mainly Knox, sodium sulfide, etc. The organic matter is mainly mercaptoacetate. It can be used alone or in combination.
1) Qing compound. The manufacturer of copper molybdenum separating agent thinks that it includes qing complex. Mainly used for copper sulfide and iron sulfide. Its purpose is to destroy xanthate and produce stable qing complex. Its effect is very obvious, a small amount. In the production and application of Jinduicheng Concentrator, the molybdenum content of molybdenum concentrate is lower than 0. Add 0.5% copper. 05-0 The concentration stage of molybdenum is 0.06kg/t. However, it is highly toxic, especially when it comes to ores containing gold, silver, etc. Therefore, the application of this method in concentrators is gradually reduced.
2) Sodium sulfide. The manufacturer of copper molybdenum separating agent thinks that it is mainly sodium sulfide, ammonium sulfide, etc. It is confirmed that SH - produced by sulfide hydrolysis is the main agent. Sodium sulfide is commonly used in actual production. For example, Na2S is used to suppress copper and float molybdenum in copper mine, and the beneficiation index is good. However, sodium sulfide is easy to be oxidized and ineffective, and the dosage is too large, reaching 80~100 kg/t, and the proportion of reagent cost is quite high, accounting for 85% of molybdenum beneficiation cost.
4) Mercaptoacetate. Copper molybdenum separating agent manufacturers believe that mercaptoacetic acid in particular has good corrosion inhibition effect, less consumption, less pollution and high selectivity. Wansheng et al. synthesized mercaptoacetic acid by sodium sulfide method, and carried out industrial test in Dexing Copper Mine, obtaining good agent effect. The grade of molybdenum concentrate is 51. The recovery rate of molybdenum concentrate is 79.53%. The copper content is only 0.89%. 32%.
5) New agent. The copper molybdenum separating agent manufacturer thinks that the experiment shows that it can obviously chalcopyrite and galena, but has little effect on molybdenite. Its dosage is 1/5 of sodium mercaptoacetate and 1/10 of sodium sulfide, with good stability, simple synthesis route and low raw material price.
The manufacturer of copper molybdenum separating agent believes that copper molybdenum separation mainly includes pretreatment before separation, copper minerals in the separation process and re enrichment after copper molybdenum separation. Pretreatment mainly includes the following methods:
1) Concentrate the mixed concentrate. It is mainly used to remove residual agent and frother in flotation copper molybdenum mixed concentrate. Some scholars used ceramic filters as the beneficiation equipment after copper molybdenum mixed flotation, which solved the problem that molybdenum ore is difficult to separate.
2) Heating mode. The copper molybdenum separating agent manufacturer thinks that heating the mixed concentrate can decompose the collector on the mineral surface, destroy the hydrophobic film, and evaporate the foaming agent in the pulp. In this way, the copper mineral surface is oxidized, the floatability is reduced and affected, but the impact on molybdenite is negligible, so as to achieve separation. At present, the main heating methods are heater, baking, steam purging, etc. It has been proved that about 40% of copper molybdenum concentrators in the world adopt heat treatment, which can not only reduce the consumption of sodium sulfide, but also significantly improve the beneficiation index.
3) Add medicament. Copper molybdenum separating agent manufacturers think it is the main oxidant, such as peroxide, ozone, oxygen, etc. The surface of copper mineral is oxidized and hydrophilic, and the attached collector is oxidized and decomposed. When the pH is 10~11, the O2 in the pulp can oxidize chalcopyrite into S2O32 -, and this oxidation can be. Some scholars used electrochemical tests to verify that ozone can effectively oxidize and decompose the collector on the chalcopyrite surface, and the effect is better than oxygen.