High purity flake graphite 100 mesh
Proudction
High purity graphite refers to graphite powder containing more than
99.9% carbon, high purity graphite of high carbon content, such
high purity graphite has good conductivity, lubrication,
high-temperature resistance, wear resistance, etc.
The use of high purity graphite in the field of industrial
production has excellent performance. High purity graphite is used
in conductive, lubrication, metallurgy, and other industrial
production fields. High purity graphite production, from the
beginning of the raw materials, should be strictly controlled the
content of impurities, choose low ash raw materials, and in the
production process to prevent the increase of pollutants as far as
possible. However, the reduction of contaminants to the degree
required is primarily in the graphite chemical sequence.
Graphitization occurs at high temperatures, where the oxides of
many impurity elements will decompose and evaporate. The higher the
graphitization temperature is, the more impurities are discharged,
the higher the purity of the high purity graphite products are
produced. The high purity graphite is used to make use of its
excellent conductivity, lubrication, high-temperature resistance,
etc.
| Grade | Fixed Carbon
(%) | Particle Size
(mesh) | Moisture
(%) | PH | Fluoride
(ppm) | Chloride
(ppm) |
| HS3299AA | >99 | +32 | <0.5 | 6-8 | <50 | <50 |
| HS59998AA | >99.98 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS59995AA | >99.95 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS599AA | >99 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS899AA | >99 | +80 | <0.5 | 6-8 | <50 | <50 |
| HS599 | >99 | +50 | <0.5 | 3-6 | * | * |
| HS5999 | >99.9 | +50 | <0.5 | 3-6 | * | * |
| HS+199AA | >99 | +100 | <0.5 | 6-8 | <50 | <50 |
| HS-199AA | >99 | -100 | <0.5 | 6-8 | <50 | <50 |
High purity graphite is a high purity, fewer impurities. This
depends on the complete production process and production
equipment.
Special properties of graphite
1. Conductivity, thermal conductivity: The conductivity of graphite
than the general non - metallic ore 100 times higher. The thermal
conductivity exceeds that of steel, iron, lead, and other metallic
materials. The thermal conductivity decreases with temperature, and
even at very high temperatures, graphite becomes adiabatic.
Graphite conducts electricity because each carbon atom in graphite
forms only three Covalent bonds with other carbons, each of which
remains one free electron to carry the charge.
2. Plasticity: Graphite toughness is good, can be ground into a
fragile sheet.
3. Thermal shock resistance: Graphite in the room temperature when
used to withstand the dramatic changes in temperature without
destruction, temperature mutation, the volume of graphite changes
little, will not produce cracks.
Application field
(1) Graphene industry
Compared with various preparation methods of graphene, graphite
oxide reduction method will become the most promising and promising
method to synthesize graphene and its materials. The primary raw
material of graphite oxide reduction method is high purity natural
flake graphite.
(2) Flexible graphite industry
To sum up, flexible graphite has a unique use value and broad
development prospect. But in the production process, there are
purity requirements, chemical acid purification often destroys or
affect the excellent material properties, high-temperature physical
refinement has apparent advantages.
(3) Other trades
Natural high purity graphite powder has the advantages of
high-temperature resistance, good electrical and thermal
conductivity, lubricity, chemical stability, excellent wear
resistance, can be used as synthetic crystalline silicon carbide
and boron carbide raw materials, hidden aircraft coating and
chemical industry, electronics, machinery, and other industrial
fields, has an extensive range of applications.
To sum up, the high purity graphite powder market has a broad
prospect. It is urgent to provide a large number of high-quality,
high purity graphite powder for the marke
