In recent years, more and more activated carbon are used in precious metals extraction process, preferred type of activated carbon is coconut shell activated carbon. Next I will lead you to Learn more about coconut shell activated carbon as Mingyang activated carbon for the extraction of precious metals.
No.1 Definition of Gold extraction of activated carbon
Nut shell activated carbon is an excellent adsorbent, currently there are two kinds Nut shell activated carbon for the gold extraction : apricot shell activated carbon and coconut shell activated carbon.Coconut shell activated carbon is better than apricot activated carbon, because coconut shellâ??s adsorption capacity is better than Apricot shell , the fundamental reason is that coconut shells Gold extraction of activated carbon can absorb more steam to make more holes in the activation process, more porous, the ability to adsorb also increased; and apricot shell because of its own Skin thinner, determines that they can not adsorb more steam, compared with the adsorption capacity of Mingyang Coconut activated carbon effect is not good.
Coconut shells Gold extraction of activated carbon is is based on high-quality coconut shell as raw material, by drying, crushing, carbonation, activation, catalysis and other production processes refined.The appearance is black amorphous particles,it has two kinds as granular and columnar.The advantages are that pore structure developed, adsorption performance, high strength, easy regeneration, economic and durable.
No.2 Technical indicators of Gold extraction of activated carbon
How to detect indicators of activated carbon adsorption capacity? On coconut shells Gold extraction of activated carbon, I summed up the following aspects:
Project test data Project test data
Particle size 0.4-3mm true specific gravity 2-2.2g/cm3
Adsorption rate of benzene powder â?¥450mg/g Bulk specific gravity 0.35-0.55g/cm3
Intensity â?¥80-95% Total pore volume 0.7-1cm3/g
Iodine value 700-1100mg/g specific surface area 590-1500m2/g
Methylene blue value 100-150mg/g PH value 8-10
Semi-dechlorination value â?¤5cm Ash â?¤8-12%
Water â?¤3% specific heat -1.00J/g.â??
No.3 Adsorption of Gold extraction of activated carbon
Coconut shells from the raw materials directly from the carbonization of coconut shells has low iodine value and adsorption capacity is poor, the basic proportion is more than 600. After activation Coconut shell activated carbon becomes Gold extraction of activated carbon, iodine value at least turns 2-3 times and mention the effect of gold extraction significantly. Introduction of activated carbon activation method has introduced that because in the activation process by adding steam the temperature increases so that the coconut shell carbonized material begin to create holes, 10 hours later the coconut shell carbonization material itself caused many pores and then the size of screening, finally bagging molding.
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Graphite carbon agent is important product with the classification of carbon additive, the largest category, is the day by burning carbonaceous mineral separation carefully selected, high-temperature recrystallization from. The product is a high fixed carbon content, S, P, N content is much lower than coal quality carbon agent. Its effect by carbon, high carbon yielding, stable, high steel cleanliness, welcomed by the metallurgical industry, metallurgical industry by carbon preferred quality materials. Today to introduce: Graphite carbon additive.
Second, graphite carburant overview:
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