1 powdered activated carbon is a multi-aperture carbide, a very rich pore structure, with good adsorption characteristics, it is by physical adsorption and chemical adsorption force formed, the appearance of color was black. It consists primarily of carbon addition, it also contains a small amount of hydrogen, nitrogen, oxygen, and its structure is similar to a hexagon shape, the irregular hexagonal structure, to determine its more and orange, and high body surface area Features, per gram of activated carbon having a specific surface area equal to 1000 m2 much. (2) powdered activated carbon material: powdered activated carbon is the main material containing a high carbon content material, such as wood, coal, shell, bone, and other petroleum residues. The most commonly used coconut shells as raw material, under the same conditions, the activity of quality coconut shell activated and other special features are the best, because there is the largest surface area. 3 the cost of powdered activated carbon industry: Industrial activated carbon raw material cost calculation if you press, the most expensive is a coconut shell, followed by wood and coal quality, but the level of deep processing of activated carbon can be a lot different from the same product can also cause deep processing costs The big difference, customers mainly according to their actual application select the corresponding activated carbon products. 4 Industrial production of activated carbon process: Industrial carbon production methods can be divided according to the physical production of steam and chemical methods, physical vapor talk about here focuses on the production method, the general production process is divided into two, the first step, carbonization, the raw material 170 to 600 temperature drying, the same amount to 80% r organic tissue charring. Second step, activation, the first step has been carbonized in a good carbonized material into the reactor, the reaction with an activating agent and steam, to complete the activation process, finished goods. In the endothermic reaction process, the main gas generating composition of CO and H2, for the carbonized material is heated to an appropriate temperature (800 to 1000 °) to remove it all biodegradable material, pore structure and produce a rich huge surface area, the activated carbon has a strong adsorption force. Different raw materials to produce activated carbon with different pore size, which coconut shell activated carbon as raw smallest aperture, wood activated carbon is also generally larger aperture, coal activated carbon pore size ranging between. Activated carbon pore size is generally divided into three categories: large hole :1000-1000000A transition pore microporous :20-1000A: 20A according to the above features can be seen, the adsorption for different objects, need to use the appropriate activated carbon, in order to achieve the best value for money Therefore, generally in the liquid phase adsorption, should be used and the average pore diameter greater transition larger carbon. 5 Industrial powdered activated carbon applications: According activated carbon adsorption characteristics of activated carbon is mainly used to remove contaminants from water, bleaching, filtration and purification of liquids, gases, but also for air purification process, the exhaust gas recycling (eg in the chemical industry for the benzene gas recovery), precious metal recovery and refining (eg for gold absorption). With the development of science, has become increasingly widespread use of activated carbon, as the country's attention to the ecological environment, activated carbon is also a growing role waving. 2 gas adsorption type of activated carbon for oil decolorization activated carbon abbreviation: decolorizing carbon products use wood, charcoal and other materials as raw materials, the use of chemical or physical method activation process produced, processed refined scientific formula of granular activated carbon. Oil decolorization activated carbon products have a larger surface area, well-developed micro-, medium pore structure, adsorption capacity, filtration speed and other characteristics. Oil bleaching products are widely used in the liquid phase activated carbon adsorption, gas adsorption, mainly used in chemical industry, food industry and other areas. Chemical industry, especially for the oil refining gasoline, ligroin, high oil, industrial oil, mineral oil, diesel oil; the food industry, such as oil, rapeseed oil and grease. Many kinds of oil bleaching activated carbon-containing material may be made of these materials, including wood, sawdust, coal, coke, peat, lignin, stone, hard shell, sugar pulp, bone, lignite, petroleum residues, and so on. Including coal and coconut shell activated carbon manufacturing has become the most commonly used raw Dou. The manufacture of activated carbon is basically divided into two processes, the first process including dehydration and carbonization, the raw material heated at 170 to 600 ℃ drying temperature, and to about 80% of the original organic matter charring. The second process is the activation of carbonized material, it is through the use of activators such as water vapor and carbon react to completion, and in the endothermic reaction is mainly composed of CO and H2 gas mixture for burning charcoals heated to the appropriate temperature (800 -1000 ℃), in order to burn them all biodegradable material, the resulting well-developed porous structure and huge specific surface area, which has a strong adsorption capacity. Activated carbon is a high-quality wood and other raw materials, the use of zinc chloride production, with well-developed in the pore structure, adsorption capacity, rapid filtration and other characteristics. Mainly applied to various amino industry, bleaching refined sugar, monosodium glutamate industry, industrial glucose, starch sugar industry, chemical additives, dyes intermediates, food additives, pharmaceutical preparations of high pigment solution bleaching, purification, deodorization, cleaning. In the production of phosphoric acid decolorization activated carbon, a well-developed and well-developed pore structure in the specific surface area, adsorption capacity, fast filtering, excluding zinc characteristics. Activated carbon is widely used in food industry, sugar, glutamic acid and salts, and salts of lactic acid, citric acid and salt, wine, spices, animal and plant proteins, biochemical products, pharmaceutical intermediates, vitamins, antibiotics and other products of bleaching , refined, deodorized, to mixed. Activated carbon introduce major technical indicators: Analysis Project Test Data Analysis Project Test Data Iodine value ≥ 1000mg / g ≤ 0.05% ferric size (mesh) 28-180 (optional) Chloride ≤ 0.02% PH value 4.5-7.5 Heavy metals ( Pb) ≤ 0.03% Loss on drying ≤ 10% Filling the proportion of 0.39 -0.45 g / cm3 of methylene blue decolorization rate ≥ 11-14ml acid dissolved ≤ 1% of the product is high-tech, manufacturing oils decolorizing charcoal for industrial oils, mineral oil, edible oil, bleaching, reduce chroma, polycyclic aromatic hydrocarbons can be adsorbed polymer, deodorized (to savor and plastic impurities, widely used in the food industry and the chemical industry liquid bleaching and refining. coconut shell charcoal oil bleaching is the result of multiple processes producing refined processing. grease decolorizing charcoal for industrial oil, mineral oil, edible oil bleaching, to savor and plastic impurities, widely used in the food industry and the chemical industry liquid bleaching and refined Sugar decolorizing carbon to high-quality wood and other raw materials, the use of zinc chloride production, with well-developed in the pore structure, adsorption capacity, rapid filtration and other characteristics. mainly applied to various amino industry, bleaching refined sugar, monosodium glutamate industry, glucose industry, starch sugar industry, food additives, high-pigment decoloration, purification, deodorization, cleaning. ① A method B method caramel and caramel with either whichever term is decolorization rate indicators. ② water to 10% for the accounting standard. ③ production of phosphoric acid activated carbon in ash 7% -9% (irrespective of any grade) This standard GB/T13805-1992 technical indicators in the original team excellent grade, first grade, second grade for significant changes to cancel the original caramel 100%, 90%, 80%, in order to re-ming standard grade potassium concentration of 60mg / L, 90mg / L, 130mg / L to express the concept, replaced GB/T12496 .9-1999 caramel rate determination as expressed in the concept of the excellent grade, first grade, second grade distanced conducive to the production and use.