What are the high carbon chromite beneficiation processes?

15311826613

Welcome to consult Xinhai - customized mineral processing plan

Xinhai can provide you with mineral processing tests, mineral processing process and mineral processing equipment selection, mineral processing plant scheme design and construction drawing design; provide mining mineral processing equipment; provide mineral processing plant construction and equipment installation as well as mine management and operation services.

Consultation 153-1182-6613

15311826613

Click to add WeChat

Get product price

WeChat ID has been copied, add friends, and get manufacturer quotations!

High carbon chromite is an important strategic resource, widely used in metallurgy, chemical industry and other fields. The main mineral resources are chromite, followed by olivine, pyroxene and a small amount of impurity minerals such as magnetite, hematite and pyrite. The symbiotic relationship between minerals in this ore is close, the embedded particle size is fine, and the beneficiation is difficult. The commonly used iron ore beneficiation processes are gravity separation, magnetic separation and flotation.

1. High-carbon chromite gravity separation method

Gravity separation is mainly a mineral separation method that uses the density difference between minerals for separation. For high-carbon chromite, gravity separation is mainly used in the roughing and pre-separation stages, which can effectively remove the gangue minerals in the ore and improve the grade of the ore for subsequent concentration. Common gravity separation equipment includes shaking table, spiral chute, jig, etc. Among them, shaking table is a commonly used fine-grained gravity separation equipment with the advantages of high separation accuracy and simple operation; spiral chute is suitable for ores with large processing volume and coarse particle size; jig is suitable for processing medium-sized ores.

2. High-carbon chromite magnetic separation method

Magnetic separation is a mineral separation method that uses the magnetic difference between minerals for separation. For high-carbon chromite, magnetic separation is mainly used to remove magnetic impurity minerals in the ore, such as magnetite, hematite, etc. Commonly used magnetic separation equipment includes weak magnetic separators, strong magnetic separators, etc. Among them, weak magnetic separators are suitable for removing impurity minerals with strong magnetism; strong magnetic separators are suitable for removing impurity minerals with weak magnetism.

3. High-carbon chromite flotation method

Flotation is a mineral processing method that uses the differences in the physical and chemical properties of the mineral surface for sorting. For high-carbon chromite, flotation is mainly used for fine selection and fine selection, which can effectively improve the grade and recovery rate of chromite. Commonly used flotation agents include collectors, inhibitors, frothers, etc. Among them, collectors are mainly used to adsorb on the surface of chromite to make it hydrophobic; inhibitors are mainly used to inhibit the floating of gangue minerals; frothers are mainly used to generate bubbles to bring hydrophobic chromite particles to the surface of the slurry. The flotation equipment commonly used in the operation includes XCF flotation machine, KYF flotation machine, SF flotation machine, and JJS flotation machine.

The above is an introduction to the beneficiation method of high-carbon chromite ore. However, in actual beneficiation plants, the presence of carbon seriously affects the chromium separation effect. Usually, a single method cannot achieve ideal beneficiation efficiency. It is necessary to use multiple combined beneficiations to achieve the ideal recovery rate. Therefore, it is recommended to conduct beneficiation tests and design a reasonable chromite beneficiation process through test analysis.