Shandong Xingfa Carbon Co., Ltd.

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 and diamond (diamond) and fullerene carbon is much like the same ball variant.

Graphite in nature exist in such as marble, quartzite, schist and gneiss in metamorphic rocks. It is a soft mineral, it is also known as graphite, graphite and carbon black lead minerals. Graphite English name "Graphite" comes from the Greek word "Graphite", "writing" means. 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.

Natural graphite is divided into crystalline graphite and aphanitic graphite, also called amorphous aphanitic graphite; processed into products divided into graphite flake graphite and amorphous graphite. In international trade, flake graphite is divided into two kinds of flake and powder ". According to the different production methods and fixed carbon content, flake graphite is divided into four kinds: high pure 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 for producing flexible graphite, sealing material and lubricant base. High carbon graphite fixed carbon content of 99% - 94%, mainly for the production of lubricants, paint or filler. The carbon content is 93% - 80%, which is mainly used to produce crucible, pencil, battery, refractory material and casting material. Low carbon graphite fixed carbon content of 79% - 50%, mainly used for casting coatings, etc..

My country is rich in natural graphite resources, reserves and production ranks first in the world, the country's 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, Heilongjiang ranks first, its reserves accounted for 63.7%; Sichuan ranks second, its reserves accounted for 9.7%; Shandong ranks third, its reserves accounted for 7.4%; Henan ranks fourth, which accounted for 4.8% of its reserves. 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, there are synthetic graphite, used for special industrial sectors. Due to its unique structure and excellent properties, graphite has been widely used in metallurgy, mechanical, electrical, chemical, light industry, atomic energy and national defense and other industrial sectors.