What are the uses of graphite
2017-4-26 10:22:47 click：
What are t
Detailed introduction
Is the nature of crystalline carbon graphite three pairs of homologous, the chemical composition of carbon element. The elemental carbon exists in three forms: fullerene ball carbon (fullerenes), diamond and graphite; chemical properties of carbon at room temperature is relatively stable; graphite products, diamond (diamond) and fullerene carbon is much like the same ball variant.
Graphite exists in nature such as marble, quartzite, schist and gneiss. It is a soft mineral, it is also known as graphite, graphite and carbon black lead minerals. Graphites English name "Graphite" comes from the Greek "Graphite", which means "writing". Graphite Mohs hardness of 1 to 2, and show that the complete bottom cleavage; pure graphite accounted for 2.23, the proportion of 2.2 - 2.3 non pure graphite, apparent purity and theory; density of 2.26 g / cm3; color from gray to black, opaque, metallic luster; sometimes displayed dark earthy luster there is no flexibility; flexible, high conductivity, high temperature resistant and refractory, the melting point of 3850 degrees, the chemical inertness of graphite is very strong, the erosion of acid alkali.
The natural graphite can be divided into crystalline graphite and hidden crystal graphite, which is also called amorphous graphite. In international trade, flake graphite is divided into two kinds of film and powder, amorphous graphite in Japan, also known as "earthy graphite". According to the production method and the fixed carbon content, the flake graphite can be divided into four kinds: high purity graphite, high carbon graphite, medium carbon graphite and low carbon graphite. The fixed carbon content of high purity graphite is 99.90%-99.99%, which is mainly used in the production of flexible graphite, sealing material and lubricant. The carbon content of high carbon graphite is 94% - 99%, which is mainly used in the production of lubricants, coatings or fillers. The carbon content of medium carbon graphite is 80% - 93%, which is mainly used in the production of crucible, pencil, battery, refractory material and casting material. Low carbon graphite fixed carbon content of 50% - 79%, mainly used for casting coating.
My country is rich in natural graphite resources, reserves and production ranks first in the world, the countrys more than and 20 provinces, city and district have been found with graphite ore; about 1.5 tons of graphite has proven reserves of mineral deposits, 31, accounting for 68% of total reserves, mainly in Heilongjiang, Shandong, Sichuan, Henan, 5 provinces of Inner Mongolia and Shanxi and Hebei at the junction of the area, accounting for 88.66% of the national total reserves. Among them, the first place in Heilongjiang, its reserves accounted for 63.7%; Sichuan ranks among the people, its reserves accounted for 9.7%; Shandong ranks the top in the world, its reserves accounted for 7.4%; Henan ranks the top in the world, and its reserves account for about 4.8% of the total number of the people in the world, which is the highest in the world, with a total of reserves of second. Aphanitic graphite mineral deposits of about 47 million 800 thousand tons, 14, accounting for 32% of total reserves, mainly in Hunan, Jilin and Guangdong 3 provinces, including Hunan, reserves ranks first in the country, accounting for 75.8%; Jilin ranked second, reserves accounted for 11.4%; Guangdong ranked third, reserves accounted for 8.1%.
In addition to natural graphite, as well as synthetic graphite for special industrial sectors. Graphite products are widely used in metallurgy, machinery, electrical, chemical, light industry, atomic energy and national defense industries due to their unique structure and excellent performance.
Graphite exists in nature such as marble, quartzite, schist and gneiss. It is a soft mineral, it is also known as graphite, graphite and carbon black lead minerals. Graphites English name "Graphite" comes from the Greek "Graphite", which means "writing". Graphite Mohs hardness of 1 to 2, and show that the complete bottom cleavage; pure graphite accounted for 2.23, the proportion of 2.2 - 2.3 non pure graphite, apparent purity and theory; density of 2.26 g / cm3; color from gray to black, opaque, metallic luster; sometimes displayed dark earthy luster there is no flexibility; flexible, high conductivity, high temperature resistant and refractory, the melting point of 3850 degrees, the chemical inertness of graphite is very strong, the erosion of acid alkali.
The natural graphite can be divided into crystalline graphite and hidden crystal graphite, which is also called amorphous graphite. In international trade, flake graphite is divided into two kinds of film and powder, amorphous graphite in Japan, also known as "earthy graphite". According to the production method and the fixed carbon content, the flake graphite can be divided into four kinds: high purity graphite, high carbon graphite, medium carbon graphite and low carbon graphite. The fixed carbon content of high purity graphite is 99.90%-99.99%, which is mainly used in the production of flexible graphite, sealing material and lubricant. The carbon content of high carbon graphite is 94% - 99%, which is mainly used in the production of lubricants, coatings or fillers. The carbon content of medium carbon graphite is 80% - 93%, which is mainly used in the production of crucible, pencil, battery, refractory material and casting material. Low carbon graphite fixed carbon content of 50% - 79%, mainly used for casting coating.
My country is rich in natural graphite resources, reserves and production ranks first in the world, the countrys more than and 20 provinces, city and district have been found with graphite ore; about 1.5 tons of graphite has proven reserves of mineral deposits, 31, accounting for 68% of total reserves, mainly in Heilongjiang, Shandong, Sichuan, Henan, 5 provinces of Inner Mongolia and Shanxi and Hebei at the junction of the area, accounting for 88.66% of the national total reserves. Among them, the first place in Heilongjiang, its reserves accounted for 63.7%; Sichuan ranks among the people, its reserves accounted for 9.7%; Shandong ranks the top in the world, its reserves accounted for 7.4%; Henan ranks the top in the world, and its reserves account for about 4.8% of the total number of the people in the world, which is the highest in the world, with a total of reserves of second. Aphanitic graphite mineral deposits of about 47 million 800 thousand tons, 14, accounting for 32% of total reserves, mainly in Hunan, Jilin and Guangdong 3 provinces, including Hunan, reserves ranks first in the country, accounting for 75.8%; Jilin ranked second, reserves accounted for 11.4%; Guangdong ranked third, reserves accounted for 8.1%.
In addition to natural graphite, as well as synthetic graphite for special industrial sectors. Graphite products are widely used in metallurgy, machinery, electrical, chemical, light industry, atomic energy and national defense industries due to their unique structure and excellent performance.
More pictures