Physical character:
Activated carbon is the char content of a kind of poriferous diameter, have extremely rich hole construction, have good adsorptive character, its sorption Jie physics and chemistry suck Fu force and become, darkly of its exterior colour and lustre is lubricious.
Its component besides main charcoal, still included a few hydrogen, nitrogen, oxygen, its structure criterion the appearance is like with a hexagon, as a result of irregular hexagon structure, decided its are much also body trifoliate orange and the characteristic that express an area high, the activated carbon place of every gram provides have what be equivalent to 1000 square metre than the surface.
Activated carbon material is qualitative:
Activated carbon its basically are with containing charcoal quantity taller material is made, if carapace of lumber, coal, fruit, bone, oil is residual,wait. And it is the most commonly used raw material with coconut shell, below coequal condition, the active quality of coconut shell active and special other character is best, because its have the biggest than the surface.
Manufacturing process:
The production of activated carbon is divided commonly for two processes, the first pace, char, be in raw material 170 fall to the temperature of 600 dry, as such its 80%r its 80%r knits char aircrew. The 2nd pace, activation, the first pace already the char stuff with good char sends into the reaction furnace, with activator and vapor reaction, finish its activation process, make finished product. In endothermic reaction process, basically produce CO and H2 combination gas, in order to heats char makings to proper temperature (800 reach 1000 degrees) , eliminate its are all dissoluble content, the hole texture with rich generation and the vast area that compare a watch, make activated carbon has very strong absorption affinity. The activated carbon that different raw material produces has different aperture, the aperture of the activated carbon that is raw material with coconut shell among them is the smallest, of woodiness activated carbon also bore diameter is general bigger, the aperture of coal qualitative activated carbon uprights at both. General component is activated carbon aperture 3 kinds: Large hole: 1000-1000000A transfers aperture: 20-1000A small hole: 20A can see according to above character, be aimed at different adsorptive object, need to choose corresponding activated carbon, compare in order to accomplish best sexual price, accordingly, suck attached middle school in fluid photograph commonly, should choose more transfer the activated carbon with bore diameter and average bigger aperture.
Activated carbon application
According to the adsorptive characteristic of activated carbon, the contaminant that activated carbon basically uses in eliminate water, decolour, filter purify liquid, gas, still use at purifying processing, waste gas to reclaim to airy (if be in chemical industry to " of aeriform " benzene reclaim) , of precious metal reclaim reach abstraction (be opposite for instance of gold absorb) .
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