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Manganese Ore Beneficiation Plant

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Manganese Ore Beneficiation Plant

ico 1 Processing capacity: 10-280 t/h

ico 2 Main equipment: jaw crusher, cone crusher, vibrating screen, ball mill, spiral classifier, magnetic separator, concentrator, dryer, etc.

Description: Manganese ore beneficiation plant plays an important role in upgrading manganese ore. FTM has many mining equipment used for manganese ore concentration for sale.

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Manganese is widely distributed in nature and exists in various ores and silicate rocks. There are more than 150 manganese minerals known now, but only 6 or less have high manganese content and economical valuable, including pyrolusite, hard manganese ore, manganite, braunite, hausmannite and rhodochrosite. They all contain 50-70% manganese content, being regarded as the important industrial minerals of manganese.

Manganese ore

Introduction to manganese ore

In modern industry, manganese ore is applied in every field of national economy, occupying an extremely important position.

About 90% to 95% of manganese ore is used in iron and steel industry as a deoxidizer and desulfurizer and used to make alloys. The rest is used in chemical industry (making manganese salts), light industry (used in batteries, matches, printing paint and soap making), building materials industry (colorant and fading agent for glass and ceramics) and other industrial fields.

Manganese ore is used in iron and steel industry

Property and components of manganese ore

Manganese ore is usually decomposed by acid. The commonly used acids include hydrochloric acid, nitric acid-hydrogen peroxide, hydrofluoric acid-sulfuric acid, and phosphoric acid-nitric acid.

The components of manganese ore are mainly manganese oxide and manganese carbonate, accompanied by impurities such as silica,phosphorus, lead, sulfur, aluminum, arsenic, calcium, magnesium, etc. Sometimes copper, cobalt, nickel and other rare metals are associated in the manganese ore layer.

Please note that silica, sulfur, phosphorus and arsenic are harmful impurities. Phosphorus is an important index to evaluate manganese ore. While the calcium and magnesium are useful impurities during smelting.

The components of manganese ore

Classification of manganese ore

According to the formation of deposit

Manganese ore is divided into sedimentary, metamorphic, hydrothermal, weathering and seafloor nodule type. Among them, sedimentary and metamorphic manganese ores have the greatest industrial value.

According to natural type of ores and associated elements

Manganese ore is divided into manganese oxide, manganese carbonate, manganese sulfide, manganese silicate and manganese borate.

• Manganese oxide: Includes pyrolusite, braunit, hausmannite, manganite, psilomelane and biotite;

• Manganese carbonate: Includes rhodochrosite, manganocalcite and manganese rhodochrosite;

• Manganese sulfide: Includes rhodonite and tephroite.

According to manganese and iron content in the ore

Manganese ore is divided into manganese ore and ferromanganese ore.

• Manganese ore: Mainly contains manganese.

• Ferromanganese ore: Contains a considerable amount of manganese and iron, but mainly iron.

Distribution and output of manganese ore

Global manganese ore resources are very abundant, but unevenly distributed. Statistics show that the global terrestrial manganese ore reserves in 2019 were 810 million tons. The manganese ore reserves of South Africa, Ukraine, Brazil and Australia, accounted for more than 75% of global manganese ore reserves. Unluckily, Ukraine retreated from major manganese ore producers due to its poor grade of manganese ore. The world's high-grade manganese ore (more than 35%) is distributed in South Africa, Australia, Brazil and Gabon.

Global terrestrial manganese ore reserves in 2019

In addition, 300 million tons of manganese nodules are stored in the bottom of the Pacific Ocean (the southeastern part of Hawaiian Islands is most promising), the Indian Ocean and the Atlantic Ocean. However, due to the technical reasons, manganese nodules have not exploited in large quantities yet.

300 million tons of manganese nodules are stored in the ocean

In recent years, global annual output of manganese ore remains at 16-19 million tons. South Africa, Australia and Gabon are the most important producers and exporters, as their combined output of manganese ore accounts for more than 60% of the world. China, Brazil, Ghana and India are also major producers.

Global annual output of manganese ore in 2019

South Africa has the world’s largest manganese ore reserves with approximately 520 million tons. It accounts for 80% of the global terrestrial manganese ores and has 85%-90% of the world’s high-grade manganese ore. Wessels mine is one of the largest manganese ore reserves, with an output of 198.8 million tons of production and a manganese grade of 55%.

South Africa is also the largest global manganese producer with an output of 5.2 million tons. Tshipi is the largest exporter in South Africa and one of the world’s top five exporters of manganese ore. United Manganese of Kalahari (UMK Mining) is the fourth largest manganese producer in South Africa, operating the world’s largest manganese deposit-Kalahari Manganese Mine.

The world’s largest manganese deposit- Kalahari Manganese Mine

Woodie Woodie mine in Australia is recognized as the best manganese ore in the world because of its high manganese content, high manganese to iron ratio, low phosphorus content, high hardness and good performance.

Woodie Woodie mine in Australia is recognized as the best manganese ore in the world.

For American manganese, the United States has no manganese ore reserves, so it imports ferromanganese and silicomanganese from South Africa, China, Ukraine, Gabon and Australia. Historically, the demand for manganese has increased following the steel production and is expected to be so in the future.

Different grades of manganese ore

The following figure shows the global output of different grades of manganese ore. The low-grade manganese ore accounts for a large proportion, so the manganese ore beneficiation technology, which is very important for low-grade manganese ore, will be introduced in the next part.

Global output of different grades of manganese ore

Manganese ore beneficiation technology

Low-grade manganese ore cannot be directly used in industrial production due to high impurity content, thus there is a need for a method of enriching low-grade manganese ore. Manganese ore processing plant is used to separate valuable minerals from impurity content by physical or chemical properties.

After continuous practice, the density, magnetic and floatability differences between manganese ore and gangue were found.

Based on these differences, the suitable processing plant for manganese ore is the mechanical selection (including washing, sieving, re-election, strong magnetic separation and flotation), as well as fire enrichment and chemical beneficiation.

The following table shows the suitable beneficiation methods for different types of manganese ores:

Beneficiation methods for different types of manganese ores

Among them, due to the simple operation, easy control and strong adaptability of magnetic separation, it can be used for various manganese ore sorting, and has dominated manganese ore processing.

Main equipment and usage of manganese ore processing plant

The following will introduce the main manganese ore beneficiation plant and its production process in detail, including the crushing process, grinding process and beneficiation process.

Major equipment

There are many types and sizes of equipment in the whole manganese beneficiation process. The major equipment is as follows: vibrating feeder, PE jaw crusher, cone crusher, vibrating screen, pendulum feeder, ball mill, spiral classifier, high frequency sieve, magnetic separator, concentrator, filter, dryer, etc.

The general process of the manganese processing plant is like this: crushing process — grinding process — separation process, ie manganese ore — vibration feeder — jaw crusher — cone crusher — vibrating screenpendulum feeder — ball mill — spiral separator — magnetic separator and so on.

Manganese benecifiation process

Practical applications Get Latest Price

Equipment Practical applications
Jaw crusher Be used for primary crushing of manganese ore, which will be broken into particle size less than 35 mm
Cone crusher Be used for secondary crushing of manganese ore to produce fine grade manganese to under 15 mm
Ball mill Grind manganese ore into powder
Spiral separator Granular grading of manganese ore slurry in metal beneficiation process below 0.075 mm
Magnetic separator Separate the magnetic material in the mixture by magnetic force and mechanical force according to the difference in the specific magnetic coefficient of the mineral
Spiral chute Sort manganese ore fines with a particle size of 0.3--0.02 mm

Manganese benecifiation equipment

The case of manganese ore production line

The manganese minerals in an India manganese ore beneficiation project is mainly composed of rhodochrosite and calcium rhodochrosite.

Case of manganese ore processing

The entire magnetic separation production line we configured for it has the following characteristics:

  1. 1The two-stage grinding process is adopted, which can not only reduce the mud ore caused by over-grinding of minerals, but also improve the output and achieve the required grinding fineness;
  2. 2One magnetic separator is used for the first stage of beneficiation. In the second stage, one magnetic separator is used for rough selection and another for ore concentrate. The final grade of manganese concentrate is 38% and the recovery rate is 74%.

Manganese ore beneficiation plant manufacturer

For the beneficiation of manganese carbonate ore, manganese oxide ore, mixed manganese ore and polymetallic manganese ore, Fote Heavy Machinery can produce jaw crushers, high-pressure roller mills, rod mills, ball mills, graders, etc for the production of coarse, medium and fine particles at home and abroad.

Our company can provide customers with complete beneficiation process plans and ore dressing experimental equipment in crushing, screening, drying, grinding, wet weak magnetic separation, wet magnetic separation, etc.

We can also provide feasible suggestions for the construction of the beneficiation plants with reasonable price.Contact us

Manganese benecifiation plant for sale

Parameter

Processing capacity:10-280 t/h

Main equipment: jaw crusher, cone crusher, vibrating screen, ball mill, spiral classifier, magnetic separator, concentrator, dryer, etc.

Processing capacity:10-280 t/h

Main equipment: jaw crusher, cone crusher, vibrating screen, ball mill, spiral classifier, magnetic separator, concentrator, dryer, etc.

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