Examples of mineral processing technology of Wolframite

Examples of mineral processing technology of Wolframite

With the advancement of technology, the mining and beneficiation technology of tungsten ore is also constantly improving. Wolframite is an important tungsten ore, and its beneficiation process is of great significance for improving the grade and recovery of tungsten ore. This article will introduce some examples of Wolframite beneficiation process to help readers better understand Wolframite beneficiation process.

1、 Properties and distribution of Wolframite

Wolframite is an important tungsten ore, mainly composed of Wolframite and Calcite, of which Wolframite accounts for a large proportion. Wolframite is grayish black, with metallic luster, high hardness, and density of 7.5~7.6g/cm ³。 Wolframite is mainly distributed in China, Russia, the United States, Canada and other countries.

2、 Beneficiation process of Wolframite

The beneficiation process of Wolframite mainly includes grinding, flotation, gravity separation, pickling and other links. Beneficiation process of Wolframite will be introduced in detail below.

1. Grinding

Grinding is the first step of Wolframite beneficiation, which aims to break the wolframite into a certain Granularity for subsequent beneficiation process. Ball mill is generally used for grinding Wolframite, and the grinding fineness is -0.074mm.

2. Flotation

Flotation is the core link of Wolframite beneficiation. Its purpose is to separate Wolframite from Calcite. The flotation of Wolframite generally adopts the positive and reverse flotation process, that is, the positive flotation is used to float Wolframite, and then the reverse flotation is used to float Calcite. Flotation agents generally use collectors and foaming agents. Petroleum sulfonic acid or butyl xanthic acid is selected as the collector, and acetone or Methyl isobutyl ketone is selected as the foaming agent.

3. Reselection

Gravity concentration is an important part of Wolframite beneficiation, which aims to improve the grade and recovery of Wolframite. Gravity separation generally adopts two methods: heavy medium separation and gravity separation. Heavy medium separation uses heavy medium to separate Wolframite, and gravity separation uses gravity to separate Wolframite.

4. Acid washing

Pickling is the last step of Wolframite beneficiation. Its purpose is to remove oxides and impurities on the surface of Wolframite. Pickling is generally carried out with concentrated sulfuric acid or hydrochloric acid, and the grade and purity of Wolframite will be improved after pickling.

III. Summary

The above is the example of Wolframite beneficiation process. The grade and recovery of Wolframite can be improved through grinding, flotation, gravity separation and acid washing. In actual production, it is also necessary to select appropriate beneficiation process according to different Wolframite properties and beneficiation requirements to achieve the best beneficiation effect.

Examples of mineral processing technology of Wolframite