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Ding Xinda activated carbon insoluble02021-10-26 22:56:50
The effect of the amount and adding method of activated carbon on smoke emission of cigarettes was investigated. It was found that the filtration efficiency of ternary compound filter was higher than that of binary compound filter under the influence of plasticizer when the amount of activated carbon was constant. With the increase of the amount of activated carbon, the filtration efficiency of the two kinds of composite filters increases. The effects of the amount of activated carbon on the filtration efficiency of the compounds with different volatiles are different. The effects of the amount of activated carbon on the filtration efficiency of the isomers are similar due to their close molecular weight and boiling point. When the dosage is small, the competitive adsorption is easy to occur. The adsorption amount of refractory components such as acetaldehyde is small, and the competition can be reduced by increasing the dosage. The filtration efficiency of refractory components shows an obvious upward trend with the increase of the dosage. It was found that the contents of volatile compounds and flavor components were related to the type of cigarettes and the amount of tar. The contents of volatile compounds and flavor components were higher in the flue-cured cigarettes than in the mixed cigarettes, and higher in the high tar cigarettes than in the low tar cigarettes. The types of fragrance components in smoke of different types of cigarettes are basically the same, but there are great differences in content. The contents of furfural, furfuryl alcohol, maltol, 5-hydroxymethylfurfural, linolenic acid, methyl linolenic acid, linoleic acid, methyl palmitate and other components in flue-cured cigarettes were significantly higher than those in mixed cigarettes. This is related to the higher carbohydrate content in flue-cured cigarettes. Mixed-type cigarettes contain high content of 3-methylpentanoic acid and nitrogen heterocyclic compounds such as cotinine, ho ah, and methamine due to their formulations of burley tobacco and spice tobacco. The filtering law of activated carbon for different types of cigarettes is basically the same, that is, the filtering efficiency is related to the properties of compounds, especially with the molecular weight and boiling point of compounds. The filtration efficiency of activated carbon on flue-cured cigarettes was lower than that of mixed cigarettes. 
Ding Xinda activated carbon carbon adsorption and carbon principle02021-11-29 22:41:57
② chemical activation method.Activated carbon can be obtained after high temperature treatment by using the gas released by the activator or soaking the raw material with the activator.Activated carbon has a micro product structure, the micro product arrangement is completely irregular, the product body has micropores (radius is less than 20[angstroms]=10-10 meters), through the hole (halfDiameter 20~1000), large hole (radius 1000~100000), so that it has a large inner surface, specific surface area of 500~1700 m 2/ g.This determines that activated carbon has good adsorption, can adsorb the metal ions in waste water and waste gas, harmful gases, organic pollutants, pigments and so on. gold coconut shell activated carbon  Industry should beActivated carbon also requires high mechanical strength, good wear resistance, its structure is stable, small energy required for adsorption, in order to be conducive to regeneration.Activated carbon for oilDecolorization, deodorization, gas separation, solvent recovery and air conditioning of fat, beverage, food and drinking water, used as catalyst or adsorbent for body and gas mask.Physical characteristics:Activated carbon is a kind of multi-aperture carbonization, has a very rich pore structure, has good adsorption characteristics, its adsorption by physical and chemicalAbsorbed from the force, the appearance of the color and lustre is black.Its composition in addition to the main carbon, but also contains a small amount of hydrogen, nitrogen, oxygen, its structure is shaped like a hexagon, due to the irregular hexagon structure, determine the characteristics of its body also incandescentand high surface area, each gram of activated carbon has the equivalent of 1000 square meters than the surface. 
Ding Xinda activated carbon use02021-12-22 00:10:48
High-quality granular activated carbon must have good adsorption performance and strength. Like powdery activated carbon, the adsorption performance of granular activated carbon depends largely on the characteristics of pore structure. The adsorption performance index can be analyzed and characterized by different methods, such as the decolorization performance of activated carbon expressed by methylene blue. Other performance indexes include iodine adsorption value, caramel decolorization rate, etc.activated carbon for gold recovery  The pore structure characteristics and specific surface area of activated carbon are usually obtained by measuring nitrogen adsorption isotherm at low temperature with adsorption apparatus.activated carbon wholesale  For the gas phase adsorption, the size of the gas molecules is usually less than 1. ONM, the use of microporous activated carbon; For liquid-phase decolorization refining, due to the large size of the liquid molecules, it is necessary to use activated carbon with developed mesopore. Activated carbon has a large specific surface area and a particularly developed micro-pore structure, which is the main reason for its strong adsorption capacity and large adsorption capacity. 
Ding Xinda activated carbon value02021-12-29 21:32:21
At present, the organic pollution of drinking water source is relatively serious. The organic pollutants themselves are not only highly toxic, but also may generate halogenated disinfection by-products (DBPs) after chlorination disinfection. Meanwhile, the existence of organic compounds will reduce the biological stability of drinking water and lead to the secondary reproduction of microorganisms in the pipe network. Therefore, it is important to reduce the content of organic pollutants in drinking water. Conventional water treatment process has low removal efficiency for organic pollutants, so it is imperative to seek economic and efficient treatment technology. On the basis of giving full play to the advantages of ozone oxidation to remove organic matter, ozone catalytic oxidation technology can induce the formation of highly oxidizing hydroxyl radical (-Oh), which can effectively remove trace organic pollutants that are difficult to degrade in water and reduce the content of ozone oxidation by-products. It is a kind of water treatment method with great prospect.activated carbon for gold recovery  Laboratory studies have shown that ceramic honeycomb activated carbon catalytic ozone oxidation technology and removal of trace organic matter in water has more obvious advantages, but the catalytic oxidation and active carbon process characteristics to be in-depth study, therefore the pilot was investigated through honeycomb ceramic catalytic ozonation and activated carbon catalytic ozonation and activated carbon filter combination process operation characteristics. activated carbon wholesale 
Ding Xinda activated carbon use02021-12-13 00:44:20
2.1.3 Determination of ash content. Put 150mL porcelain cyanosis pot in muffle furnace, burn it at (65020) "℃ to constant weight, put the cyanosis pot in dryer, cool and weigh; Weigh 5 grams of the crushed sample (approximately 0.1mg) and place it in 150mL porcelain coating that has been burned to constant weight; Put Zengtan into a muffle furnace whose temperature does not exceed 300℃, open the cyanosis cap, and gradually increase the temperature to a constant weight at 650 ℃ 20℃. It takes about three hours. Calculate ash value and get ash content.activated carbon for gold recovery  2.1.4 Determination of methylene blue adsorption value. The crushed sample was weighed with 1.0 grams (approximately to 1mg) and placed in a 100mL grinding stopper conical flask. An appropriate amount of methylene blue test solution was added with an eyedrot. The filtrate was placed in a colorimetric dish with a light diameter of LCM, and the absorbance was measured with a spectrophotometer at a wavelength of 665nm. The absorbance was compared with the absorbance of the standard cupric sulfate filter. The number of ml of methylene blue test solution consumed was the methylene blue adsorption value of the sample. activated carbon wholesale  
Ding Xinda activated carbon use development02021-12-13 00:46:10
Principle of activated carbon adsorption activated carbon is a kind of very small granular has a large surface area, and more tiny holes in the granular - capillary. The capillary has very strong adsorption capacity, due to the granular surface area is large, so a good contact with with gas (impurities). When these gases (impurities) encounter capillary by adsorption, purification effect. Activated carbon surface area of the study is very important, only the BET specific surface area detecting data of active carbon method detected result is reliable, domestic at present there are many instruments can only make direct comparison method of detection,www.powdered-activated-carbon.com  In domestic has been eliminated. Specific surface area test unified the multi-point BET method at home and abroad, specific surface area measurement standards are developed at home and abroad is based on BET test method, please see our national standard (GB/T 19587-2004) - gas adsorption BET principle of solid material specific surface area measurement methods. Specific surface area testing is actually the more time-consuming jobs, as the adsorption capacity of sample is different, some sample testing may need to spend the whole dayTime, if the test process is not fully automated, the tester can not leave at any time, and should be highly focused, observe the dashboard, control the knob, a little careless will lead to the failure of the test process, which will waste a lot of valuable time of the tester.activated carbon pellets wholesale  F - Sorb 2400 specific surface tester is really able to BET method detection instruments (both direct comparison method), the more important F - Sorb 2400 specific surface tester is by far the only specific surface area of the fully automated intelligent testing equipment, the test results with the international high consistency, the stability is very good also, at the same time reduce the human error, improve accuracy test results. 
Ding Xinda activated carbon pigment02022-01-17 23:33:33
1. Activated carbon treatment of wastewater containing chromium. Chromium is a kind of metal raw material used in electroplating. The hexavalent chromium in wastewater exists in different forms with different pH values. Activated carbon has a very developed microporous structure and high specific surface area, has a strong physical adsorption capacity, can effectively adsorb Cr (V) in wastewater. There are a large number of oxygen-containing groups on the surface of activated carbon, such as hydroxyl (-OH), carboxyl (-COOH), etc., which all have the function of electrostatic adsorption and produce chemical adsorption on Cr (VI). It can be completely used to treat Cr (VI) in electroplating wastewater, and the adsorbed wastewater can meet the national discharge standard. The results showed that when the mass concentration of Cr (VI) in the solution was 50mg/L, pH=3 and adsorption time was 1.5h, the adsorption performance and Cr (VI) removal rate of activated carbon reached the best effect. Therefore, the process of treating wastewater containing chromium by activated carbon is the result of the comprehensive action of physical adsorption, chemical adsorption and chemical reduction of Cr (VI) in solution by activated carbon. Activated carbon treatment of wastewater containing chromium has stable adsorption performance, high treatment efficiency, low operating cost, and certain social and economic benefits. 2. Treatment of cyanide-containing wastewater with sexual carbon. In industrial production, cyanide or by-product cyanide is used in the wet extraction of gold and silver, the production of chemical fiber, coking, synthesis of ammonia, electroplating, gas I production and other industries, so a certain amount of cyanide-containing wastewater must be discharged in the production process. Activated carbon has been used to purify wastewater for a long time and there are more and more reports on its application in the treatment of cyanide-containing wastewater. However, due to the small adsorption capacity of CN_ and HCN on activated carbon, which is generally 3mgCN/ GAC --8mgCN/ GAC depending on the variety, it is not cost-effective in the treatment cost. 3. Activated carbon treatment of wastewater containing mercury. Activated carbon has the ability to adsorb mercury and mercury-containing compounds, but its adsorption capacity is limited, and it is only suitable for treating wastewater with low mercury content. If the concentration of mercury is high, it can be treated by chemical precipitation method first. After treatment, the mercury content is about 1mg/L, and it can reach 2-3mg /L when high, and then further treatment with activated carbon. 4. Activated carbon treatment of phenol-containing wastewater. Phenol-containing wastewater is widely sourced from petrochemical plants, resin plants, coking plants and oil refining and chemical plants. The experimental results show that the activated carbon has a good adsorption performance for phenol, but the increase of temperature is not conducive to adsorption, so that the adsorption capacity is reduced. But the time to reach adsorption equilibrium is shortened by increasing the temperature. The optimum values of the amount of activated carbon and the adsorption time were found, and the removal rate changed little under acidic and neutral conditions. Under the condition of strong alkalinity, the removal rate of phenol decreased sharply, the stronger the alkalinity, the worse the adsorption effect. 
Ding Xinda activated carbon price02021-12-28 21:37:37
(1) According to the relevant national standards, the sludge of Liede Sewage Treatment Plant is mainly composed of volatile organic compounds, with a volatile content of 64.86%, which can be used as the main raw material for the preparation of activated carbon.(2) Without adding additives to the sludge, the concentration of sulfuric acid and zinc chloride is 4 mol·L' and the volume ratio is 2:1. The activated carbon prepared has the maximum iodine adsorption value of 549.6 mg·g 'and the yield of 51.3%, which is the better carbon sample prepared by pure sludge and is recorded as SAC.which was recorded as PAC;By single factor experiment, the optimal conditions of carbon production were obtained as follows: pyrolysis temperature 600℃, activator concentration 4 mol · L', pyrolysis time 1.5h, solid-liquid ratio 1:2.5.Orthogonal experiment showed that the influence of each factor was as follows: pyrolysis temperature >Is the activator concentration >Pyrolysis time >activated carbon for gold recovery  Solid-liquid ratio.(4) the main performance of PAC is basically equivalent to 8818 type activated carbon;The concentrations of heavy metals in activated carbon leaching solution of sludge were all qualified.Compared with domestic and foreign research reports, the quality of PAC is in the middle level.(5) Compared with SAC, the specific surface area of PAC is larger, up to 636.8m2·g'. PAC is mainly mesoporous, but also contains some micropores. The adsorption/desorption isotherm shows that PAC is activated carbon with parallel wall slit pore structure.activated carbon wholesale  SEM analysis showed that the surface pores of commercial activated carbon were microporous and relatively uniform, while the surface of SAC and PAC presented irregular porous structure. XRD analysis showed that the commercial activated carbon was amorphous carbon, SAC and PAC were microcrystalline carbon with hexagonal shape structure 
Ding Xinda activated carbon taste02021-12-12 23:07:13
Especially in the field of medicine, activated carbon, as a highly effective gastrointestinal cleaning agent, can effectively adsorb pesticide residues, fungicides, heavy metals, dioxins, various pathogenic bacteria and toxins in the digestive tract and human body that damage human health or cause disease wastes, harmless to human body.activated carbon gold mining  With the rapid development of pharmaceutical preparation industry and primary molecular material industry, the microencapsulated activated carbon products coated with polymer materials have been successfully trial-produced in foreign countries, and applied in clinical practice, the medical care and treatment effect is very good, many of them have been put into the market, and have achieved good economic and social benefits.activated carbon company  It is worth noting that there is a shortage of activated carbon in China. For a long time, the production of drugs using activated carbon as raw materials has been kept in the laboratory, and no products have been marketed or used in clinical trials. Experts said that with the continuous improvement of people's life quality and health care consciousness enhancement, as well as the rapid development of all kinds of industrial, environmental pollution has been increasingly serious, people an opportunity to contact with a variety of harmful material, activated carbon and activated carbon as the leading raw material to produce medicines and health products, medical market will become a major conventional leading consumer products, 
Ding Xinda activated carbon sales02021-12-17 23:01:03
In domestic has been eliminated. Specific surface area test unified the multi-point BET method at home and abroad, specific surface area measurement standards are developed at home and abroad is based on BET test method, please see our national standard (GB/T 19587-2004) - gas adsorption BET principle of solid material specific surface area measurement methods. Specific surface area testing is actually the more time-consuming jobs, as the adsorption capacity of sample is different, some sample testing may need to spend the whole dayTime, if the test process is not fully automated, the tester can not leave at any time, and should be highly focused, observe the dashboard, control the knob, a little careless will lead to the failure of the test process, which will waste a lot of valuable time of the tester.activated carbon for gold recovery  F - Sorb 2400 specific surface tester is really able to BET method detection instruments (both direct comparison method), the more important F - Sorb 2400 specific surface tester is by far the only specific surface area of the fully automated intelligent testing equipment, the test results with the international high consistency, the stability is very good also, at the same time reduce the human error, improve accuracy test results. activated carbon wholesale 
Ding Xinda activated carbon differentiation02021-12-20 23:49:37
Another method is to heat drying, can be adsorbed most of the gas I body removal. It is usually heated and dried at 150C for 4 to 5 hours before use. Because of the high temperature of nylon deformation, nylon activated carbon before use at 100 ° C heating and drying 4 to 5 hours.activated carbon gold mining  Activated carbon has no adverse adsorption effect on some substances, causing some substances to adsorb on it can not elute.activated carbon company  Therefore, in the separation of activated carbon adsorption of the material, must first activated carbon deactivation. The commonly used reagent for activated carbon deactivation is a long chain aliphatic compound, such as stearic acid, oleic acid, undecanoic acid, octadecane, octadecanamine, etc., among which the most common is stearic acid. The specific methods are as follows: take activated carbon into the appropriate container, with 1.5% to make lipoacid ethanol solution immersed, 1 hour after stirring, diluted with 9 times the amount of distilled water under the titration, decompression filtration, washed with distilled water three times, filtered after air drying or vacuum drying, standby. 
Ding Xinda activated carbon price and way02021-12-13 23:01:57
② chemical activation method.Activated carbon can be obtained after high temperature treatment by using the gas released by the activator or soaking the raw material with the activator.Activated carbon has a micro product structure, the micro product arrangement is completely irregular, the product body has micropores (radius is less than 20[angstroms]=10-10 meters), through the hole (halfDiameter 20~1000), large hole (radius 1000~100000), so that it has a large inner surface, specific surface area of 500~1700 m 2/ g.This determines that activated carbon has good adsorption, can adsorb the metal ions in waste water and waste gas, harmful gases, organic pollutants, pigments and so on.activated carbon wholesale  Industry should beActivated carbon also requires high mechanical strength, good wear resistance, its structure is stable, small energy required for adsorption, in order to be conducive to regeneration.Activated carbon for oilDecolorization, deodorization, gas separation, solvent recovery and air conditioning of fat, activated carbon for gold recovery beverage, food and drinking water, used as catalyst or adsorbent for body and gas mask.Physical characteristics:Activated carbon is a kind of multi-aperture carbonization, has a very rich pore structure, has good adsorption characteristics, its adsorption by physical and chemicalAbsorbed from the force, the appearance of the color and lustre is black.Its composition in addition to the main carbon, but also contains a small amount of hydrogen, nitrogen, oxygen, its structure is shaped like a hexagon, due to the irregular hexagon structure, determine the characteristics of its body also incandescentand high surface area, each gram of activated carbon has the equivalent of 1000 square meters than the surface. 

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