What is the difference between hard manganese ore and soft manganese ore

The composition of pyrolite is called manganese dioxide.

It is a common manganese mineral. Soft manganese ore contains manganese and is an important manganese ore. Pyrolite is very soft and not as hard as a human fingernail.

It is light gray to black in color and has a metallic luster. If you touch it with your hands, it will blacken your hands like coal. Pyrolite is generally lumpy or kidney-like or earthy, sometimes with a radial fibrous form.

Interestingly, some pyrolites also exhibit a dendritic attachment to the rock face, known as pseudofossils. Pyrolite is made from other manganese ores, and can also be formed in sediments formed in swamps, lakes and seas, etc.

Hard Manganese Ore: Hard Manganese Ore is a metal ore and is black; Cryptocrystalline - microcrystalline, breccia-like structure. The main mineral composition is hard manganese, galena and pyrite.

Calcite. Hard manganese ore is an oxide of barium and manganese, and it is an important ore for refining manganese. Unlike many minerals that form underground, hard manganese is a secondary mineral that forms under surface conditions, which means that it was originally another mineral, and then under certain conditions it became what it is now.

They turned out to be carbonates of manganese.

or silicate minerals. Hard manganese ore is dark gray to black with a smooth surface and grape or stalactite-like lumps.

Physical properties Hardness: 4-6

Specific gravity: Cleavage: No cleavage.

Color: gray-black to black.

Streaks: brownish-black to black.

Transparency: Opaque.

Luster: Semi-metallic luster to dull.

Other: Sexual brittleness.

Pyrolite is manganese dioxide mnO2

Hard manganese ore is pure manganese MN

Manganese ore is mainly used in the metallurgical industry and chemical industry.

First, in metallurgy.

Manganese is an indispensable raw material for the steel industry. Manganese is an extremely strong reducing agent, which can absorb all the oxygen from the molten steel, so that there is no iron oxide in the steel, and it becomes a non-porous ingot.

Secondly, manganese is also an excellent desulfurizer, it can remove all the sulfur in the molten steel, and adding a small amount of manganese to the steel can greatly increase the mechanical properties of the steel, such as ductility, ductility, toughness and wear resistance. Manganese steel, ferromanganese, various alloys made of manganese and copper, aluminum, nickel, cobalt, etc., and manganese compounds are extremely useful in industry.

1. In ferrous metallurgy: standard ferromanganese can be smelted with high-grade manganese ore containing iron. Ferro-manganese is an additive for the production of special steels, and small quantities of manganese silica can also be smelted. Silicon-manganese is useful for smelting certain varieties of steel;

2. In the non-ferrous metallurgical industry: the alloy of manganese and copper can be used to make anti-corrosion metal reservoirs. Manganese bronze alloy can be used as ship equipment. Manganese aluminum alloys have great uses in the aviation industry. Manganese-nickel-copper alloys can be used to make standard resistance wires.

Second, in the chemical industry.

Manganese dioxide (pyrolite) can be used as a negative agent in the manufacture of dry batteries, and paint desiccant in the chemical industry. It is also possible to manufacture black decorative glass and decorative brick and earthenware glaze colors. It can also be used as a variety of manganese compounds, such as manganese sulfate, manganese chloride, potassium permanganate, etc.

Types of ores: Manganese is found in many minerals in nature, but only a small part of the real value can be mined as manganese ore. The main ones are soft manganese ore, followed by hard manganese ore, marsh manganese ore, and others such as water manganese ore. Brownite and black manganese are both mixed minerals, and rhodochrosite is usually found in siderite.

1. Water manganese ore.

The chemical composition of water manganese ore MNO(OH) is mainly as follows: SiO2, Fe2O3, and trace Al2O3, CAO and other mixtures. Water manganese ore is an important mineral raw material for refining manganese.

2. Brown manganese.

Mn2O3 contains manganese. Tetragonal crystal system, the crystal is conical or pseudooctahedral crystal shape, usually in the form of dense bulk or granular aggregates, the color is brownish-black to steel-gray, the streaks are dark brown, the fresh ports are jagged, semi-metallic luster, relative density, hardness is 6, and it is distinguished by the hardness, streaked brown and other black similar manganese minerals.

3. Pyrolite.

The chemical composition is mnO2, the highest manganese content can be reached, often containing a small amount of water and silica, iron oxide and hard manganese ore. Crystals that are usually columnar are also needle-like, fibrous, granular, etc. Hardness 1, specific gravity.

Metallic or matte. The color is iron black or light blue-black. The streaks are black.

Sexual softness can contaminate the fingers and be opaque.

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The combination of manganese ore and iron ore is relatively stable. Manganese ore is an important raw material often used in steel production, and its main component is manganese oxide, which contains a large amount of iron. Iron ore is a mineral that contains the element iron, and its main component is iron oxide, which contains a large amount of manganese.

The combination of manganese ore and iron ore can provide enough iron and manganese elements to ensure the stability of steel production. The combination of manganese ore and iron ore can also provide other important elements such as manganese, chromium, vanadium, titanium, etc., thereby improving the properties of steel.

What combination of manganese ore and ore is more stable?

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The combination of manganese ore and iron ore is relatively stable. Manganese ore is an important raw material often used in iron and steel production, and its main component is manganese oxide, which contains a large amount of iron. Iron ore is a mineral that contains the element iron, and its main component is iron oxide, which contains a large amount of manganese.

The combination of manganese ore and iron ore can provide enough iron and manganese elements to ensure the stability of steel production. The combination of manganese ore and iron ore can also provide other important elements such as manganese, chromium, vanadium, titanium, etc., thereby improving the properties of steel.

Manganese ore and other ores can be combined into a mountain.

Kissing, manganese ore and siliceous iron ore, vanadium iron ore, bauxite ore and other common metal ores can be combined in the Yitaling mountain. This is because the rocks on which these ores are located are of similar type and origin, and can be formed under similar geological conditions. In the process of resource exploitation, it is necessary to protect the ecological environment of the mountain and avoid the secondary destruction of mineral deposit resources and ecological environment.

It is also necessary to comply with relevant laws and regulations and environmental protection requirements to ensure a balance between the exploitation of large leased resources and environmental protection.

Manganese concentrate contains two meanings, 1It is the ore powder after crushing and beneficiation; 2.It is a mineral that meets the needs of industrial utilization through mineral processing and processing.

It can be seen that the content of manganese concentrate must meet the needs of industrial utilization before it can be called concentrate. Otherwise, no matter what mineral processing has been done, it cannot be called concentrate.

Different industrial utilization needs have different requirements for the quality of ores, so the content requirements should be based on the use (the content of all elements and components in the ore), for example, manganese concentrate for electrolytic manganese, some special minerals, about 20% grade can be used; For metallurgy, if the iron content + manganese content is greater than 45%, the manganese content can be used even if it is only a few percent.

In short, the situation is very complicated and cannot be generalized, but it is necessary to look at it comprehensively and integrate many factors before it can be judged and determined.

Manganese dioxide. The main component of pyrolite is MnO2, and it is also judged to contain a small amount of impurities such as heavy metal compounds The main component of pyrite is FeS2, and it also contains impurities such as silicon and aluminum oxides In industry, manganese carbonate and ammonium sulfate are prepared by the same tank acid and other processes.

Manganese dioxide (in nature in the form of pyrolite), physical age:

Black amorphous powder, or black orthorhombic crystal.

Solubility: insoluble in water rolling, weak acid, weak alkali, nitric acid.

Cold sulfuric acid, dissolved in concentrated hydrochloric acid when heated to produce chlorine gas.