At first glance, activated carbon is just an activated carbon, and the breakdown is hundreds of types of activated carbon. The quality of activated carbon varies with the production materials, production methods, and post-treatment. Quality also varies from application to application. Generally, the corresponding quality specifications and inspection methods are formulated for activated carbon for various purposes.
The items of quality specifications for various uses of activated carbon at home and abroad are summarized as follows: (1) Physical items: shape, appearance; mesh number, particle size, particle size distribution; apparent density, packing density; abrasion resistance; hardness; specific surface area; pore volume;
Floating rate; Strength; Thermal capacity; Thermal conductivity. (2) Chemical items: pH value; ash content; moisture, drying weight loss; ignition point; uncarbonized, burning residue; sulfide; chloride; cyanide; sulfate; acid soluble, nitric acid soluble; alcohol soluble ; Iron content; copper content; zinc content; potassium content; calcium and magnesium content; heavy metal content; water extraction; cadmium content; arsenic content; total nitrogen; phosphate; manganese; fluorescent substances; polycyclic aromatic compounds; tar products. (Plant-based raw materials) (3) Microbial project: Microbial limit.
For example, coconut charcoal has a variety of qualities and corresponding models: one type is used for water treatment applications that remove low concentrations of organic matter, one type is used for general liquid or gas phase applications, and one type is used for gold extraction; each type is further subdivided to make coconut shells have More than ten models; another example is reclaimed carbon reactivated from waste carbon. Its quality is outstanding in high density, high surface area, durability, and recyclability. There are about ten models. It can be seen that there are many varieties changed from quality, and there is great promise.
The items of quality specifications for various uses of activated carbon at home and abroad are summarized as follows: (1) Physical items: shape, appearance; mesh number, particle size, particle size distribution; apparent density, packing density; abrasion resistance; hardness; specific surface area; pore volume;
Floating rate; Strength; Thermal capacity; Thermal conductivity. (2) Chemical items: pH value; ash content; moisture, drying weight loss; ignition point; uncarbonized, burning residue; sulfide; chloride; cyanide; sulfate; acid soluble, nitric acid soluble; alcohol soluble ; Iron content; copper content; zinc content; potassium content; calcium and magnesium content; heavy metal content; water extraction; cadmium content; arsenic content; total nitrogen; phosphate; manganese; fluorescent substances; polycyclic aromatic compounds; tar products. (Plant-based raw materials) (3) Microbial project: Microbial limit.
For example, coconut charcoal has a variety of qualities and corresponding models: one type is used for water treatment applications that remove low concentrations of organic matter, one type is used for general liquid or gas phase applications, and one type is used for gold extraction; each type is further subdivided to make coconut shells have More than ten models; another example is reclaimed carbon reactivated from waste carbon. Its quality is outstanding in high density, high surface area, durability, and recyclability. There are about ten models. It can be seen that there are many varieties changed from quality, and there is great promise.
コメント