Graphite raw material high purity flake graphite
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. Chemical stability: Graphite in the room temperature has
excellent chemical durability, acid resistance, alkali resistance,
and resistance to organic solvent corrosion.
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) Isotropic nuclear graphite industry
Because high purity isotropic natural microcrystalline ink is an
ideal raw material for atomic graphite, it is particularly
important to expand the source of raw materials for high purity
isotropic natural microcrystalline ink.
(2) Artificial diamond industry
Natural flake graphite powder is the primary raw material of
synthetic diamond. Scientists have proved that the purity of
graphite powder and the graphitization degree of graphite powder
have a significant influence on product quality. The selection of
high purity graphite raw materials and the selection of appropriate
graphitization degree will be an essential way to improve the
product quality of an artificial diamond.
