Molybdenum mine

Introduction

Pi-molybdenum ore is a disulfide of molybdenum, is the most important molybdenum ore resources. There are different types, which belong to six-party and tripartite crystals. Molybdenum is used to make electrical and electronic components such as filament brackets, anodes, and gates, and heating elements of the electric furnace. Molybdenum ore often contains ruthenium, and is also the highest mineral containing tantrogen, so it is still the most important mineral of the refining (矿 提 提........... Pi-molybdenum mine is very soft, hardness is less than nail. Generally they are granular or small granular, lead gray, with strong metal gloss. my country 's Henan, Shaanxi, Liaoning and other real estate.

Chemical composition: mainly MOS2;

Identification feature: Pi-molybdenum ore is extremely complete, the bottom is extremely complete, the bottom is extremely complete, the bottom is extremely complete, the bottom is very complete, the proportion is large, and the gloss is strong. Color and stripes are light;

graphite difference; than graphite graphics, simultaneous belt blue, graphite is slightly brown; in terms of bar mark, the boss mine strip is green, but the graphite is black . Burning in the air or cooked in nitric acid, can be molybdenum oxide.

Because of production: mainly high, medium temperature hot liquid genetically, its deposit is related to the acid rock;

The most important molybdenum deposit is a mephomy molybdenum mine; Solient with tin stone, black tungsite, glow mine, poisonous sand or other symbiosis, white tungsten, green rock, green curtain, white tungsten ore.

Famous Origin: The world famous origin has the United States and Australia New South Wales, Canada Quebec, Ontario, Norway, Sweden, United Kingdom, Mexico, China Liaoning, Henan, Shanxi, Shaanxi and other places.

Crystal morphology

Rehabilitz double cone;

crystal is parallel C (0001) hexagonal plate shape, sheet shape;

Crystal structure

crystal system and space group: Six-Party crystal system (2H type), spatial group is D46H-P63 / MMC; tripartite crystal system (3R type), spatial group C5-R3M.

Bocnator: A0 = 3.15 埃, CO = 12.30 埃 (2H type), z = 2, A0 = 3.16 埃, c0 = 18.33 angstrom (3R).

Physical properties

hardness: 1-1.5, can be drawn from the paper from the paper

specific gravity: 5.05g / cm3

Decoke: (0001) extremely complete

Color: lead gray

bar: bright gray

Transparency: opaque

Gloss: Metal gloss

Luminous:

Other: The sheet has flexible, greasy fluid

Optical properties

reflective color gray. Reflectance: RO was 36.0 (green), 31.5 (orange light), 30.5 (red light); RE is 15.5, 18, 15, respectively. Double reflection, RO - white belt snow, RE-yellow. Strong uniformity.

Main use

Used to refine molybdenum, produce molybdenum steel, molybdate acid, molybdate, and other molybdenum.

Molybdenum is a relatively late metal element, and in 1792, the Swedish chemist was extracted from the pour molybdenum mine.

The color of the boss molybdenum is pure lead gray, with metal gloss. The hardness is 1-1.5, the specific gravity is 4.7-5.0. Typically, pour molybdenum mine is black, scales, dip, granular or decomposed bulk, opaque. Soft texture is soft, it is easy to be bent and unlastic, with sliding. The analysis shows that its conductivity increases with the increase of temperature, and high temperature resistance. Used to refine molybdenum, produce molybdenum steel, molybdate acid, molybdate, and other molybdenum.

Mineralogologists believe that most of the pour molybdenum deposits with industrial value are related to the underground heat liquid, the most distributed in the quartz or quartz rocks.

Raw material characteristics

The exacerbation of molybdenum is about 1 × 10-6 in the crust, and the granite molybdenum molybdenum is 3-6 in granite. Molybdenum in geochemical classification, belonging to the transitional iron element. In the internal production of mines, molybdenum is mainly combined with sulfur, and produces glow molybdenum mines.

Pi-molybdenum ore ( MOS ₂ ) is the most in the nature of more than 30 molybdenum minerals It is a molybdenum mineral with real industrial value. Other more common molybdenum minerals include iron molybdenum ([FE ^{3 +} (MOO ₄ ) ₈ · 8H2O]), molybdate Calcium mine (Camoo ₄ ), Caolbdenum lead ore (PBMOO ₄ ), glue molybdenum mine (MOS ₂ ), blue molybdenum mine ( Mo ₃ o ₈ · nh ₂ o), etc..

Pi-molybdenum ore has a multi-type, and experiments have shown that its multi-type appearance is related to the formation temperature, and the 2H-type Pi-molybdenum ore formation temperature is higher than the 3r-type plowing mine. Temperature is low to highly formed non-crystalline MOS _{2 2 → 3MOS 2 → 2HMOS 2 . The temperature measurement data shows that the formation temperature of the glow mine has a wider range, which can be self-tempered until a relatively low temperature, and a large amount is formed at a high to medium temperature stage. Under the action of hot fluid, MOS 2 precipitate under the acidic conditions, that is, the boss molybdenum ore is most stable under acidic conditions, when the solution is neutralized, molybdenum changes into soluble thiolybdic acid Salt and molybdate and then active. Under low temperature and normal temperature conditions, MO ^{4 +} generate gelide molybdenum mines (MOS 2 ) in a strong acid reducing environment, and its oxygenated product is a blue molybdenum mine ( MO 3 o 8 o). Sub> 2} o). In the role of foreign bone, molybdenum is Mo ^{6 +} , strong activity. It is similar to uranium, which is stabilized in a transition environment that is close to neutral or volating, and thereby generates a plurality of uranium molybdate minerals, such as molybdenum uranium [(UO ₂ ) MOO ₄ · 4h ₂ o], molybdenum calcium uranium [CA (UO ₂ ) ₃ ( MOO ₄ ) · (oh) ₂ · 11h ₂ o: et al.钼 华 华 [Fe _{2 3 · nh 2 o] is a vulcanized ore in acid conditions Frequent minerals formed by (pH = 3 to 5). The color molybdenum lead ore is a product of molybdenum lead zinc ore under neutral conditions.}

ruthenium is similar to the ionic radius of molybdenum, so it is often substantially molybdenum and enriches the main source of industrial rhenium. The 矿 矿 矿 往 有关. 有关.... 钼 型 型 型 型 型 型 型 型

Related History

The world's first development of molybdenum is a Norwegian Knaben deposit. The mine began in 1885. Since the demand for molybdenum was small, the mine was stopped during the mine. In the second half of the 19th century, molybdenum was first started in the United States, only a few annual outputs. Since the 20th century, since the demand for molybdenum increased year by year, the molybdenum mine mining also expanded year by year. The annual output of molybdenum in the world has grown rapidly. The first World War has increased to 100T, and it is 10,000 tons in the late 1930s. The end of the 1970s reached 100,000 t.

The Chinese molybdenum mine is first discovered in the end of the Qing Dynasty, and the first World War will be found. At that time, some pulse molybdenum mines in the coast of Zhejiang and South China were associated with molybdenum. At the end of the Anti-Japanese War, Liaoning Yangjiazi Molybdenum mine was taken by the Japanese aggressors. The production of production before the liberation is only a few tons, and more than ten tons are mostly. After the liberation, in order to meet the needs of China's socialist construction, we have established a large-scale three-year molybdenum base (Liaoning Yangjiazi, Shaanxi Golden City, Henan Luanchuan) and several small minimal mines, many copper and tungsten The mine also recovers the accompanying molybdenum, so that the annual output of China's molybdenum concentrates jump into the world's advanced ranks.

Collection information