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Ding Xinda activated carbon pharmaceutical development pricing02021-12-01 23:10:11
 gold coconut shell activated carbon cIn painting, printing, shoe making, plastic, rubber, bonding and other industrial processes, there are a large number of organic waste gas emissions.These waste gas, often contain benzene, toluene, xylene, ethyl acetate, methanol and other organic matter, itself toxic, long-term damage can lead to human death.The emission of this kind of waste gas, countries have clear provisions, strict control of its emission concentrationThe treatment of organic waste gas has been studied for a long time, and some effective control technologies have been developed.The widely used and studied control techniques include adsorption method, thermal destruction method, condensation method, absorption method, etc.activated carbon from china  emissions.It is estimated that more than 30 million tons of organic matter are released into the atmosphere worldwide every year, posing a serious threat to human health and plant and animal growth.Organic pollutants are mostly produced in industrial processes. 
Ding Xinda activated carbon pharmaceutical development pricing to miscellaneous02021-12-01 23:13:11
Among them, the adsorption method is widely used.Compared with other methods, the adsorption method has the advantages of high removal efficiency, thorough purification, low energy consumption, mature technology, recovery and solution, easy popularization and practical, and has good environmental and economic benefits.Activated carbon is the most commonly used adsorbent because of its huge specific surface area, large adsorption capacity, easy regeneration, abundant sources and low price.Although the application of charcoal as an adsorbent, human beings have had a long time, but the study of adsorption theory, but only in the end of the last century began to make progress.pelletized activated carbon suppliers   In 1916, Langmuir studied the adsorption of monolayer molecules and proposed the Langmuir adsorption isotherm equation.Freundlich and Zsigmondy proposed the capillary condensation theory for gas adsorption and obtained the semi-empirical Freundlich adsorption isotherm equation.Temkin also suggested a semi-empirical isothermal equation.powdered activated carbon producers  Based on Gibbs equation, Toth used dimensionless function V to derive another adsorption isotherm equation for heterogeneous surfaces.Fowler and Guggenhein derived a formula of the same form from the concept of statistical mechanics.Goldmann and Polanyi proposed the adsorption space theory, which believed that the continuous decrease in the molecular density of multiple layers on the surface of the adsorbent was caused by the weakening of the adsorption molecular force 
Ding Xinda activated carbon chemical pharmaceutical sales02022-01-18 22:20:11
(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 > adsorption on activated carbon  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. 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.
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 use and development02021-09-02 00:06:05
Activated carbon adsorption, is the use of activated carbon on the solid surface of the water adsorption or a variety of substances, in order to achieve the role of water purification. The adsorption of activated carbon is produced in two aspects.One is that the molecules inside the activated carbon are subjected to equal forces in all directions while the molecules on the surface are subjected to uneven forces.This makes other points adsorbed on its surface, which is physical adsorption;The other is due to the chemical action between activated carbon and adsorbed substances, which is chemical adsorption.The adsorption of activated carbon is the result of the comprehensive action of the above two kinds of adsorption.https://www.granular-activated-carbon.com  When the adsorption speed and desorption speed of activated carbon in the solution is equal, that is, the number of activated carbon adsorption is equal to the number of desorption, the concentration of the adsorbed material in the solution and the concentration on the surface of activated carbon are no longer intermingled, that is, to achieve the balance, the dynamic balance at this time is called activated carbon adsorption balance. coal based granular activated carbon  Adsorption capacity refers to the amount of adsorbents adsorbed on the adsorbent per unit mass under certain conditions. It is usually expressed in terms of K adsorbents /kg of adsorbent or mass percentage, which is a sign of the adsorption capacity of the adsorbent. In industry, the amount of adsorption is called the activity of the adsorbent. The activity of the adsorbent can be expressed in two ways :(1) the static activity of the adsorbentUnder certain conditions, the equilibrium adsorption capacity of the adsorbent is its static activity.For a certain adsorption system, the static activity depends only on the adsorption temperature and the concentration or partial pressure of the adsorbed substance. Dynamic activity of adsorbents 
Ding Xinda activated carbon trading development02021-12-03 23:21:13
The experimental results showed that high pressure and low temperature were beneficial to the adsorption, and the flow rate had little effect on the equilibrium adsorption capacity in the range of experimental flow rate. The adsorption capacity of benzene by activated carbon in the experiment was 150~170mg/g under operating conditions.gold coconut shell activated carbon  At the same time, the filtration and adsorption properties of coke were tested. The experiment sactivated carbon from china  hows that the adsorption performance of the test coke on benzene is very weak, can not be used as the nitrogen adsorbent, but the coke filter and adsorption performance of ash and naphthalene is very good, the content of naphthalene and ash after the gas through the coke column completely meet the design requirements. The results show that the combined use of coke and activated carbon in the gas system can completely achieve the purpose of removing benzene, naphthalene and ash. According to the above research results, a coke filter was designed. The application of the equipment solved the problems that the feedstock gas compressor in the urea blackening unit could not run for a long period due to the vibration caused by the scaling of the rotor, the blockage of the flow channel and the problems that the naphthalene formation in the heat exchanger affected the heat transfer effect. 
Ding Xinda activated carbon competitiveness and development02021-09-27 01:52:33
1. Combined with Zeta potential, sedimentation experiment, viscosity measurement and other methods, the influence of various dispersants on CEO and slurry suspension effect was studied.coal based activated carbon factory   The results showed that the formula with good stability was the appropriate concentration of mixed dispersant (NAP +SBN) or (NAP +PAM+SBN). 2. The removal rate of CEOZ slurry prepared with mixed dispersant (NAP +PAM+SBN) in the processing of K9 glass by MASJP was higher than that of other mixed dispersants.https://www.granular-activated-carbon.com/  By comparing the processing effect of MASJP with and without mixed additives, it is found that the processing effect of MASJP with mixed additives (NAP +PAM+SBN) has higher surface quality, which can significantly reduce the interface area between the polished area and the unpolished surface and increase the smooth surface as much as possible.3. Combining online observation and single factor method, the formation process of the surface features of the polished area was studied. The experimental results showed that the surface morphology of the polished area showed a W-shaped bowl structure in the vertical jet machining, and an eccentric bowl structure in the crescent shape in the oblique jet machining.Compared with the abrasive water jet machining effect, it is found that the W shape and crescent shape characteristics of the polishing region of MASJP are relatively flat, the smooth surface is larger and the surface quality is higher. 4. When applying nozzle with different outlet shapes in MASJP, it is found that the fluid ejected from the cylindrical nozzle flows out along the direction of the jet and does not disperse. The processing area of the fan-shaped nozzle is large, the polishing area is approximately a rectangle, and the removal depth near the nozzle is larger.Hollow conical nozzle processing finished parts, the polishing area formed a hollow circle, the central part of the removal of less, the circumference of the removal of deep;The removal depth of the polishing area decreases gradually from the center to the circumference after the finished piece is processed by the solid conical nozzle. 5, the workpiece surface profile and material removal depth with the selection of polishing slurry composition changes.With the increase of abrasive concentration, the material removal depth increases, which is roughly in a proportional relationship.With the increase of abrasive particle size, the material removal depth also increases. 
Ding Xinda activated carbon production and development02021-12-21 01:29:27
Activated carbon is a strong adsorbent, the adsorption of gas and adsorption capacity are very large.activated carbon gold mining  When the gas molecules occupy the adsorption surface of activated carbon, the adsorption of activated carbon will be reduced, resulting in the so-called "poisoning" of activated carbon. If there is oxygen on the activated carbon adsorption, sometimes also make the adsorption of the material oxidation reaction. activated carbon company  Therefore, before the use of activated carbon, most of the gas must be removed by adsorption. Usually remove the gas in activated carbon there are two methods, one method is to use ephedrine or hydrogen sulfide saturated water solution treatment, but this treatment method is too complex, and through these treatments can also cause some other side reactions, so it is not commonly used. 
Ding Xinda activated carbon understanding development02021-12-08 22:41:00
cWater rice only previews downloaded documents in HD without watermark The target of the.Yakeshi city junxi wood industry co., LTD. To meet the needs of market development, actively develop wood waste processing projects, has made the enterprise in technology, management, personnel with a strong development potential.activated carbon gold mining  development and comprehensive utilization of resources have become a common concern ofpeople and a problem that the international community is committed to solving.To further improve the level of comprehensive utilization of wood resources and the added value of products has become the main goal of the world wood processing industry. activated carbon company  
Ding Xinda activated carbon development and speed02021-10-27 23:32:19
Under certain operating conditions, the gas mixture by adsorption bed, adsorption by adsorption, adsorption after a period of time, when starting from the adsorbent in the laminar flow of the gas adsorbed mass (or its concentration reaches a specified value), think bed fire, adsorption properties of adsorbent adsorption quantity at this time is called dynamic activity of adsorbent. The activity is not only related to the characteristics of adsorbents and adsorbents, but also related to temperature, concentration and operating conditions.granular activated charcoal   The kinetic activity value of adsorbent is the main basis for the design of adsorption system.coal activated carbon supplier  The adsorption rateThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, the adsorption process can be divided intoThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, which can be divided into the following steps 
Ding Xinda activated carbon wood chips and development02021-12-08 18:16:25
Under certain operating conditions, the gas mixture by adsorption bed, adsorption by adsorption, adsorption after a period of time, when starting from the adsorbent in the laminar flow of the gas adsorbed mass (or its concentration reaches a specified value), think bed fire, adsorption properties of adsorbent adsorption quantity at this time is called dynamic activity of adsorbent. activated carbon for gold recovery  The activity is not only related to the characteristics of adsorbents and adsorbents, but also related to temperature, concentration and operating conditions.activated carbon wholesale   The kinetic activity value of adsorbent is the main basis for the design of adsorption system. The adsorption rateThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, the adsorption process can be divided intoThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, which can be divided into the following steps (1) External diffusion, the adsorbate from the main air flow through the air film around the particles to the outer surface of the adsorbent; (2) Internal diffusion, the adsorbate from the outer surface through micropores to the surface of the adsorbent micropores (3) adsorption, the adsorbent reached the microporous surface of the adsorbent is adsorbed (4) The desorbed adsorbate diffuses to the main body of the gas phase through internal and external diffusionPhysical adsorption process is generally controlled by internal and external diffusion, chemical adsorption is controlled by both surface dynamics and internal and external diffusion.Because of the complexity of the adsorption process and many influencing factors, it is difficult to derive the rate theoretically, so it is generally determined by experience or model experiment. 
Ding Xinda activated carbon sawdust and development principle02021-12-08 18:18:57
development and comprehensive utilization of resources have become a common concern ofpeople and a problem that the international community is committed to solving.To further improve the level of comprehensive utilization of wood resources and the added value of products has become the main goal of the world wood processing industry.activated carbon gold mining  China has a large population and is short of forest resources. The per capita forest stock volume is 0.12m3, lower than the world average level of 0.65 m3.China's wood comprehensive utilization level is also low, only 40%, and advanced countries can reach 80%, and in the level of technology, product grade, production efficiency, market competitiveness and other aspects compared with the developed countries also have a big gap. activated carbon company  

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