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431 results about "Activated charcoal powder" patented technology

Magnetic modified biochar, preparation method thereof and application of magnetic modified biochar in adsorption of micro-plastics

The invention discloses magnetic modified biochar, a preparation method and application of the magnetic modified biochar to adsorption of micro-plastics, and belongs to the technical field of biochar. The method comprises the following steps: pretreating industrial hemp straws, pyrolyzing at 700 DEG C in a nitrogen atmosphere to obtain original biochar, activating with potassium hydroxide, and continuously pyrolyzing in the nitrogen atmosphere to obtain activated biochar powder; soaking the obtained activated charcoal powder in an iron nitrate nonahydrate solution, mixing and stirring, drying and pyrolyzing, washing and drying to obtain the magnetic modified charcoal. Compared with traditional biochar, after the activated biochar is subjected to impregnation-pyrolysis treatment, Fe < 3 + > is introduced into the formed magnetic modified biochar, so that the specific surface area, the pore diameter, the adsorption performance and the magnetism are improved; meanwhile, in the application process of adsorbing the micro-plastics, a magnet can be used for separating the magnetic modified charcoal adsorbent from the micro-plastics, and the effects of recycling and cyclic regeneration are achieved.
Owner:KUNMING UNIV OF SCI & TECH

Environment-friendly cementing material capable of efficiently adsorbing formaldehyde and preparation method of environment-friendly cementing material

The invention discloses an environment-friendly cementing material capable of efficiently adsorbing formaldehyde and a preparation method of the environment-friendly cementing material, and relates to the technical field of formaldehyde adsorption materials, and the environment-friendly cementing material is prepared from the following raw materials in parts by weight: 30-50 parts of activated carbon powder, 10-20 parts of diatomite powder, 8-10 parts of metal organic framework powder, 12-18 parts of a natural gelatinizing agent, 1-2 parts of a plasticizer and 2-4 parts of nano titanium dioxide. The activated carbon powder has an extremely high specific surface area and can effectively adsorb formaldehyde molecules in air. The porous structure of the diatomite powder increases the adsorption capacity of the material, and improves the formaldehyde removal efficiency. The metal organic framework powder has a unique pore structure and chemical properties, and can specifically adsorb formaldehyde and other volatile organic compounds (VOCs). The environment-friendly cementing material has the advantages of being efficient in formaldehyde adsorption, environment-friendly, durable, multifunctional, easy to process, economical, practical and the like, and is an ideal indoor air purification material.
Owner:平泉冀东水泥有限责任公司

Active carbon material for adsorbing organic gas and preparation method thereof

The invention relates to the technical field of activated carbon materials, and discloses an activated carbon material for adsorbing organic gas and a preparation method thereof.The preparation method includes the steps that activated carbon powder, epoxidized cardanol, graphene oxide modified quaternized chitosan, bentonite and nanometer titania are added into grinding equipment to be ground, and a primary material A is obtained; and then continuously adding a water-borne epoxy resin adhesive and water, stirring and drying to obtain the active carbon material for adsorbing the organic gas. Chitosan in the silane modified chitosan structurally contains amino, hydroxyl and other polar groups, so that organic gas can be adsorbed; the graphene also has a relatively good adsorption effect on organic gas, and meanwhile, the agglomeration effect of the graphene is reduced; and siloxane and quaternary ammonium salt groups contained in the adsorbent also have a relatively good adsorption effect on organic gases. Cardanol in epoxidized cardanol contains functional groups such as benzene rings, phenolic hydroxyl groups and long-chain alkanes, and the functional groups endow the cardanol with various reaction activities and can absorb organic gas.
Owner:BEIJING KUSOSHEN TECH CO LTD

Adsorption-coagulant for removing perfluorinated compounds in water and application of adsorption-coagulant

The invention is applicable to the technical field of perfluorinated compound removal, and provides an adsorption-coagulant for removing perfluorinated compounds in water and application thereof, the adsorption-coagulant comprises an adsorbent and a coagulant, the adsorbent adopts activated carbon powder, and the coagulant adopts polyaluminum chloride. The adsorbent adopted by the invention can efficiently capture trace perfluoroalkyl molecules in water, and the coagulant can promote the molecules to form larger aggregates in water, so that the overall removal efficiency is improved. By reasonably designing the adsorption-coagulation process, the use amount of a traditional coagulant can be reduced, the generation of byproducts in the treatment process is reduced, and the subsequent treatment cost is reduced, so that the economical efficiency and sustainability of the whole treatment process are improved. The adsorption-coagulation technology disclosed by the invention combines two water treatment methods of adsorption and coagulation, the removal efficiency of nondegradable pollutants such as perfluorinated compounds is remarkably improved through the combined action of the two methods, and the adsorption-coagulation technology shows wide applicability.
Owner:CHANGCHUN NORMAL UNIV

Double-layer carbon-coated sodium ion battery hard carbon negative electrode material as well as preparation method and application thereof

The invention belongs to the technical field of sodium ion negative electrode material preparation, and particularly relates to a double-layer carbon-coated sodium ion battery hard carbon negative electrode material as well as a preparation method and application thereof. The method comprises the following steps: firstly, dispersing activated carbon powder into a tris (hydroxymethyl) aminomethane hydrochloride buffer solution, and then adding dopamine hydrochloride to carry out self-polymerization reaction, so as to obtain activated carbon powder coated with a first layer of polydopamine; then putting the activated carbon powder into a second layer of carbon source precursor solution, and heating in a water bath to obtain double-layer carbon-coated activated carbon powder; and finally, carrying out heat treatment. The preparation method comprises the following steps: firstly, coating the surface of activated carbon with a first layer of polydopamine by an in-situ polymerization method, then promoting uniform coating of a second layer of carbon source precursor by utilizing strong adhesion of the polydopamine, and carrying out heat treatment to obtain the double-layer carbon-coated hard carbon negative electrode material. The hard carbon negative electrode material can improve the energy density of the current sodium ion battery and accelerate the industrial application of the sodium ion battery.
Owner:NANCHANG UNIV

Sintering method using solid waste activated carbon powder

The invention discloses a sintering method using solid waste activated carbon powder. The sintering method comprises the following steps: preparing a mixture A and a mixture B; spraying quicklime digestion liquid to the surface of the solid waste activated carbon powder, and granulating to form an activated carbon powder inner core; taking the activated carbon powder inner core as a pelletizing core, pelletizing by utilizing the mixture A to form a pellet inner core A, and pelletizing by utilizing the mixture B to form an activated carbon powder pretreated pellet; preparing an upper-layer sintering mixture and a lower-layer sintering mixture; the lower-layer sintering mixture is added to a sintering trolley to be sintered; and when the sintering pallet runs to 1 / 5-1 / 3 of the total length of the sintering machine, the upper sintering mixture is distributed and added to the surface of the formed sinter layer for sintering. The problems that the combustion characteristics of the solid waste activated carbon powder and the coke powder are not matched and the solid waste activated carbon powder is high in sulfur and nitrogen impurity content to affect the sinter quality are solved, the problems that due to sintering of a thick bed, the permeability of the bed is reduced, the bottom sinter is over-melted and the sinter quality is uneven are solved, and the metallurgical performance index of the sinter is improved.
Owner:ANGANG STEEL CO LTD

Method for recycling sintered waste activated carbon powder

The invention relates to the technical field of sintering technology and environmental resources in the iron and steel industry, in particular to a method for recycling sintered waste activated carbon powder, which comprises the following steps: mixing waste activated carbon powder with a flux and iron ore concentrate to prepare small balls with different carbon contents; the method has the beneficial effects that the waste activated carbon is efficiently and fully utilized in the longitudinal sintering direction, and the purposes of reducing the consumption of sintering solid fuel, improving the sintering efficiency and improving the sintering quality are achieved. Heat required by effective mineralization of the upper portion and the edge of the sintering trolley is improved, the quality of sintered ore on the upper layer and the edge of the sintering trolley is improved, and finally the purpose of reducing production and operation cost is achieved.
Owner:ANGANG STEEL CO LTD

Material and method for reducing contents of heavy metals and nitrogen and phosphorus in bottom mud

The invention discloses a material and method for reducing the content of heavy metals and nitrogen and phosphorus in bottom mud, the material is suitable for reducing the content of heavy metals and nitrogen and phosphorus in bottom mud, and the material comprises the following components in parts by mass: 100 parts of calcareous shale, 20-40 parts of steel slag, 6-10 parts of activated carbon powder and 6-10 parts of medium-coarse sand; the sintering material is formed by sintering a mixed material, and the mixed material comprises the following components in parts by mass: 100 parts of calcareous shale, 20-40 parts of steel slag, 6-10 parts of activated carbon powder and 6-10 parts of medium-coarse sand; and 2-4 parts of an adhesive. The material for reducing the contents of heavy metals and nitrogen and phosphorus in the bottom mud not only blocks the pollution of sludge to water quality, but also effectively reduces the contents of heavy metals and nitrogen and phosphorus nutrients in the bottom mud in situ, and can reduce the thickness of the bottom mud, improve the characteristics of the bottom mud and really realize harmless treatment of the bottom mud.
Owner:CHINA CONSTRUCTION POWER & ENVIRONMENT ENGINEERING CO LTD +1

Method and device for regenerating waste activated carbon powder

The invention discloses a regeneration method and device for waste activated carbon powder, and relates to the technical field of regeneration of activated carbon powder. A secondary granulation assembly is arranged on the right side of the primary granulation assembly; a drying assembly is arranged on the right side of the secondary granulation assembly; a communicating pipeline is arranged between the top of the drying assembly and the top of the granulation assembly; a screening assembly is arranged on the right side of the drying assembly; a mixing assembly is arranged at the left bottom of the conveying assembly. The bonding effect between the material and the binder is further improved by means of the dredging effect of the material guide rod, and meanwhile, the limiting ring promotes the elastic scraping strip to be always tightly attached to the inner wall of the mixing assembly, so that activated carbon powder is prevented from being attached to the inner wall of the mixing assembly due to high humidity; and resource loss caused by the fact that materials are difficult to adhere to the composite adhesive and remain in the mixing assembly is avoided.
Owner:安徽固瑞特新材料科技有限公司

Method for preparing sintered ore based on solid waste activated carbon powder

The invention discloses a method for preparing sintered ore based on solid waste activated carbon powder. The method comprises the steps that the solid waste activated carbon powder is divided into a part A and a part B; the method comprises the following steps: spraying quicklime digestion liquid to the surface of solid waste activated carbon powder A, and then performing pre-granulation by taking the solid waste activated carbon powder A sprayed with the quicklime digestion liquid as a pelletizing core and taking blast furnace return mine fine ground powder as adhesive powder to obtain pretreated activated carbon powder A; an ammonia additive is sprayed to the surface of the solid waste activated carbon powder B, then the solid waste activated carbon powder B sprayed with the ammonia additive serves as a pelletizing core, blast furnace return mine fine ground powder and coal pitch fine ground powder serve as adhesive powder, a binder is added, pre-granulation is conducted, and pretreated activated carbon powder B is obtained; mixing the pretreated activated carbon powder A with coke powder to obtain sintering fuel, and then uniformly mixing the sintering fuel with sintering production raw materials to obtain a sintered material A; granulating the sintered material A, and adding the pretreated activated carbon powder B to prepare a sintered mixture; and the sintering mixture is distributed on a sintering trolley, ignition is carried out, air draft sintering is carried out, and finished sinter is obtained.
Owner:ANGANG STEEL CO LTD

Preparation method of oleophylic ceramsite material for industrial sewage treatment

The invention relates to the field of oil-water separation and sewage treatment, in particular to a preparation method of an oleophylic ceramsite material for industrial sewage treatment.The preparation method comprises the steps that 1, blast furnace slag, iron tailing powder, waste activated carbon powder and river sand are weighed according to the weight ratio and placed in a ball mill to be fully mixed, and mixed powder is obtained; (2) adding silicon dioxide nano hollow spheres, mixing, adding water glass, and fully mixing to obtain a ceramsite blank; (3) putting the prepared ceramsite blank into a muffle furnace for staged sintering; (4) preparing a catalyst precursor solution; (5) in a vacuum tank, putting the sintered ceramsite blank into a catalyst precursor solution, and then carrying out acid pickling to remove the silicon dioxide hollow nanospheres, so as to obtain modified ceramsite; and (6) drying the obtained modified ceramsite, and then placing the dried modified ceramsite in an atmosphere furnace for heat preservation to obtain the oleophylic ceramsite. According to the method, an electronic structure is regulated and controlled and the adsorption energy of an intermediate is optimized through the synergistic effect of Fe and Co, so that a stable oleophylic structure is obtained.
Owner:ANGANG STEEL CO LTD +1

Walnut shell graded porous activated charcoal as well as preparation method and application thereof

The invention discloses walnut shell graded porous activated charcoal and a preparation method and application thereof.The preparation method comprises the following steps that firstly, walnut shells serve as a carbon precursor, pre-carbonization is conducted through a high-temperature tube furnace under the nitrogen atmosphere through an oxygen-limited cracking method, the walnut shells are taken out and ground, the walnut shells are evenly mixed with KOH solid and then placed in the tube furnace, and the carbon precursor is obtained; carrying out high-temperature pyrolysis to obtain a pyrolysis product, washing the pyrolysis product until the pyrolysis product is neutral, and drying to obtain the walnut shell graded porous activated charcoal with rich pore structures. Then, weighing the walnut shell graded porous activated charcoal, acetylene black and PTFE (Polytetrafluoroethylene) according to a set mass ratio; firstly, PTFE is dissolved in alcohol for standby application, then walnut shell graded porous activated charcoal powder and acetylene black are placed in an agate mortar to be fully ground and mixed, then a PTFE alcohol mixed solution is dropwise added, and the mixture is fully ground and mixed uniformly to obtain the electrode material. The chemical performance of the electrode material can be improved, so that the performance of the supercapacitor is improved, and the cost of the supercapacitor is reduced.
Owner:HENAN UNIV OF SCI & TECH

Composite metasilicic acid mineralized filter element profile as well as preparation method and application thereof

The invention relates to a composite metasilicic acid mineralized filter element profile as well as a preparation method and application thereof, and relates to the technical field of water purifiers, the composite metasilicic acid mineralized filter element profile is prepared from the following raw materials in parts by weight: 60 to 80 parts of metasilicic acid mineralized carbon material and 20 to 40 parts of bonding material; the metasilicic acid mineralized carbon material is prepared from the following raw materials in parts by weight: 30-60 parts of metasilicic acid mineralized powder, 30-60 parts of activated carbon powder, 0.3-2 parts of an antibacterial agent, 0.2-1 part of a pore forming agent and 0.5-5 parts of a stabilizer. According to the composite metasilicic acid mineralization filter element profile provided by the invention, the formula of the filter material is designed, so that the composite metasilicic acid mineralization filter element profile has a good specific surface area, the contact area between active ingredients such as mineralization materials and water is ensured, the composite metasilicic acid mineralization filter element profile not only has the adsorption, harm removal and impurity removal functions of activated carbon, but also can separate out mineral substances, and is beneficial to realizing stable release of metasilicic acid.
Owner:QINGDAO HAIER STRAUSS WATER EQUIP CO LTD +1

Drilling fluid for slim-hole horizontal well and preparation method of drilling fluid

The invention relates to the technical field of drilling fluid preparation, in particular to slim-hole horizontal well drilling fluid and a preparation method thereof.The drilling fluid is prepared from, by weight, 100 parts of clear water, 15-20 parts of bentonite, 12-15 parts of functional auxiliaries, 12-15 parts of weighting agent, 8-10 parts of stabilizer and 8-10 parts of lubricant. According to the drilling fluid, the plant ash and the activated carbon powder are subjected to gelatinization reaction after being mixed with the corn starch and are combined to generate a rich pore structure, after the functional additive is used as a raw material to prepare the drilling fluid, a granular layer can be generated on the surface of the drilling fluid by utilizing the rich pore structure and the superfine powder state of the functional additive, and in the drilling process, the surface of the drilling fluid can be effectively protected. The existence of the granular layer can destroy the liquid level tension, so that the contact area of the liquid level of the drilling fluid and air is increased, the heat dissipation efficiency of the drilling fluid is improved, and the stable performance of the drilling fluid in a high-temperature state is ensured.
Owner:SHAANXI HEXIN ZHONGYI OIL & GAS TECH SERVICE CO LTD

Moisture-proof and mildew-proof corrugated paper and preparation method thereof

The invention relates to the field of corrugated paper preparation, in particular to moisture-proof and mildew-proof corrugated paper and a preparation method thereof. The composite board comprises a board core located in the center and paper layers located on the two sides of the board core. A moisture-proof and mildew-proof bonding layer is arranged between the board core and the paper layer; a moisture-proof and mildew-proof protective layer is arranged on the outer side of the The moisture-proof and mildew-proof bonding layer is obtained by coating a bonding agent; the adhesive comprises activated carbon powder, kaolin, water, hydrogen peroxide, potassium permanganate, starch, caustic soda, borax, a defoaming agent and a special drying catalyst; the moisture-proof and mildew-proof protective layer is obtained by coating a protective agent; the protective agent is prepared from activated carbon powder, kaolin, paraffin, dimethyl silicone oil, absolute ethyl alcohol, tetrabutyl titanate, an emulsifier OP-10, polysorbate-80, an acetic acid solution, styrene-acrylic emulsion, a film-forming agent, a dispersing agent and a preservative. On the basis of the original performance, multi-layer moisture-proof and mildew-proof effects are further achieved, the quality of the corrugated paper is improved, objects contained in the corrugated paper are protected, the strength of the corrugated paper is enhanced, and the service life of a carton is prolonged.
Owner:ZHEJIANG HUACHUAN IND GRP

Technical wood veneer carbon-based light energy-saving material and cabinet door plate product thereof

The invention provides an engineered wood veneer carbon-based light energy-saving material and a cabinet door plate product thereof. The engineered wood veneer carbon-based light energy-saving material comprises a carbon-based core material and an engineered wood veneer, the carbon-based core material comprises 25-60 parts of bamboo charcoal powder, 5-15 parts of bamboo activated carbon powder, 10-20 parts of bamboo powder, 40-70 parts of thermoplastic polymer master batch and 1-10 parts of processing auxiliary materials; the technical wood veneer comprises a technical wood veneer and a water-based environment-friendly heterogeneous adhesive. The material is prepared by preparation of a carbon-based core material and processing and compounding of a technical wood veneer, wherein the preparation of the carbon-based core material comprises the steps of batching and weighing, high-speed stirring, melting and granulating, re-mixing and molding and post-processing; technical wood veneer processing and compounding cover veneer preparation, adhesive blending, uniform gluing, assembly pre-pressing and three-section type cold pressing curing. According to the technical wood veneer carbon-based light energy-saving material and the cabinet door plate product thereof, through material formula design and preparation process planning, light weight, high strength, heat insulation, low formaldehyde release and diversified decoration are integrated, and the low-cost environment-friendly target of resource recycling is achieved.
Owner:DEHUA TB NEW DECORATION MATERIAL CO LTD

Deodorant capable of effectively adsorbing and eliminating environmental odor and preparation method thereof

The invention relates to the technical field of deodorants, in particular to a deodorant capable of effectively adsorbing and eliminating environmental odor, which is prepared from the following components in percentage by mass: 30 to 40 percent of activated carbon powder, 15 to 25 percent of plant extract, 10 to 20 percent of microbial agent, 5 to 10 percent of disodium ethylene diamine tetraacetate and the balance of water. The plant extract liquid comprises 10%-18% of folium artemisiae argyi extract liquid, 8%-12% of pepper extract liquid, 12%-18% of pomelo peel extract liquid, 10%-15% of tea tree extract liquid, 10%-15% of lavender extract liquid, 8%-12% of lemon eucalyptus oil extract liquid and 7%-10% of mint extract liquid; through cooperation of the materials, the adsorbability and deodorization performance of the deodorant are improved, the intensity of odor in the environment is remarkably reduced, the odor is continuously adsorbed, secondary pollution is avoided after the deodorant is used, the odor in the environment is effectively covered, and the smell feeling is improved.
Owner:YIERKANG PHARMACEUTICAL TECHNOLOGY (HEBEI) CO LTD

Activated carbon powder feeding device

The utility model belongs to the technical field of activated carbon feeding of waste incineration plants, and particularly relates to an activated carbon powder feeding device. According to the activated carbon powder feeding device, a vacuum activated carbon feeding mode is combined with the ton bag unpacking base station, the whole ton bag unpacking base station is arranged, an operator only needs to stand on the ground for operation, activated carbon is loaded into the hopper for temporary storage, high-altitude operation is avoided, and personnel cost input is saved; the dust collecting hopper is arranged around the inlet of the hopper, so that dust cannot leak out, the activated carbon bin returns to the bin body in time due to negative pressure, environmental pollution is reduced, and cleanliness of a factory area is guaranteed; the system is provided with the Roots blower, it is guaranteed that the activated carbon is in a negative pressure state in the feeding process and the conveying process, vacuum feeding is achieved, and the feeding problem of a small-size bin body of a small-scale waste incineration power plant is solved.
Owner:EVERBRIGHT ENVIRONMENTAL PROTECTION TECHNOLOGY EQUIPMENT (CHANGZHOU) CO LTD

Tool for testing working capability of vehicle activated carbon powder

The invention discloses a tool for testing the working capability of vehicle activated carbon powder. The tool comprises a hollow tool shell, the tool shell comprises a front shell and a rear shell which are distributed left and right and connected with each other; a gas inlet, a gas rectifier, gas inlet filter cloth, a carbon powder section, gas outlet filter cloth, a spring bracket, a spring and a gas outlet are sequentially arranged in an inner cavity of the tool shell from left to right; and the air inlet and the air outlet are respectively communicated with an air outlet pipeline and an air inlet pipeline of external test equipment. The tool for testing the working capacity of the vehicle activated carbon powder is used for testing the working capacity of the vehicle activated carbon powder, is scientific in design, can accurately and reliably test the adsorption capacity of the vehicle activated carbon powder to test gas, and ensures the test precision.
Owner:CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1

Efficient multifunctional water purifying agent as well as preparation method and application thereof

The invention belongs to the technical field of sewage treatment, and particularly relates to an efficient multifunctional water purifying agent as well as a preparation method and application thereof. The preparation method comprises the step of mixing the CFN coexisting blending degradation agent, the FNX synergistic removal agent, the modified aluminum oxide powder, the modified activated carbon powder calcium salt, the flocculating agent and the complex catalyst step by step. Wherein the flocculating agent is a carboxymethyl chitosan derivative, and is prepared by sequentially carrying out ring-opening reaction, quaternization reaction and esterification reaction on an epoxy compound; the carboxymethyl chitosan derivative structurally contains mercaptobenzothiazole and quaternary ammonium salt structures, and has excellent adsorption performance, corrosion inhibition performance and antibacterial performance. The efficient multifunctional water purifying agent provided by the invention realizes effective removal of a plurality of pollution factors, has small fluctuation of influence on the pH value of sewage after being added, does not need subsequent acid-base adjustment, can reduce the sewage treatment cost in multiple levels, and improves the treatment efficiency and the effluent quality.
Owner:HEBEI HUAYAO ENVIRONMENTAL PROTECTION RES INST CO LTD +1

Mechanochemical treatment method and application of high-entropy oxide

The invention provides a mechanochemical treatment method of a high-entropy oxide and application of the mechanochemical treatment method. The high-entropy oxide is an oxide composed of five or more transition metals (at least including iron, cobalt, manganese, zinc and nickel elements). The method comprises the following steps: adding the high-entropy oxide into activated carbon powder (including coconut shell powder, walnut shell powder, bamboo charcoal powder and the like) or directly carrying out mechanochemical treatment, carrying out grinding by mainly adopting a grinder or a ball mill in the mechanochemical treatment, controlling grinding conditions to prepare an active super-stable catalyst, and introducing the catalyst and ozone into pollutants of benzotriazole, and benzotriazole can be degraded. The high-entropy oxide subjected to high-temperature roasting is treated by a mechanochemical method to obtain the ozone catalyst with both activity and stability, and the ozone catalyst is used for a long time in an acid environment, less in metal ion leaching, high in catalytic activity and good in ozone catalyst efficiency.
Owner:NANJING TECH UNIV

Shaped activated carbon as well as preparation method and application thereof

The invention relates to shaped activated carbon, a preparation method and application, in particular to the field of activated carbon preparation, and the shaped activated carbon comprises activated carbon powder, a cellulose binder, an emulsion binder, a reinforcing agent, a lubricant and a solvent. According to the shaped activated carbon provided by the invention, the activated carbon with high specific surface area and narrow pore size distribution, the binder and the additive are used for preparing columnar or honeycomb-shaped activated carbon with high specific surface area, high ball disc strength, high butane working capacity and relatively small pulverization wear, and the shaped activated carbon can be used for adsorbing and / or storing gasoline steam in an automobile carbon tank.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES +1

Acrylic acid catalyst based on spinel structure carrier as well as preparation method and application of acrylic acid catalyst

The invention relates to an acrylic acid catalyst based on a spinel structure carrier and a preparation method and application thereof, and relates to the technical field of acrylic acid catalysts, the preparation method comprises the following steps: mixing pseudo-boehmite, magnesium nitrate and activated carbon powder, then adding vaseline, and continuing mixing to obtain a first mixture; adding ammonium fluoride and water into the first mixture, and mixing to obtain a second mixture; carrying out extrusion molding and grain-sized dicing on the second mixture, and then carrying out first drying and first roasting to obtain an Al2O3 carrier with a magnesium aluminate spinel structure; and dipping the Al2O3 carrier in a solution containing a metal active component, and then carrying out second drying and second roasting to obtain the acrylic acid catalyst. By using the carrier with the magnesium aluminate spinel structure and adopting an impregnation method, not only is the use efficiency of active metal improved, but also the strength of the carrier of the catalyst is improved, and the defects in the prior art are overcome.
Owner:SHANGHAI REZEL KEHUA ENG DESIGN CO LTD

A method for preparing oleophilic ceramsite material for industrial wastewater treatment

The present invention relates to the fields of oil-water separation and sewage treatment, and in particular to a method for preparing an oleophilic ceramsite material for industrial sewage treatment, comprising: (1) weighing blast furnace slag, iron tailings powder, waste activated carbon powder and river sand according to a weight ratio, placing them in a ball mill and fully mixing them to obtain a mixed powder; (2) adding silicon dioxide nano hollow spheres, mixing them, and then adding water glass and fully mixing them to obtain a ceramsite body; (3) placing the prepared ceramsite body in a muffle furnace for staged sintering; (4) preparing a catalyst precursor solution; (5) placing the sintered ceramsite body in a catalyst precursor solution in a vacuum tank, and then acid-washing to remove the silicon dioxide nano hollow spheres to obtain a modified ceramsite; (6) drying the obtained modified ceramsite, and then placing it in an atmosphere furnace for heat preservation to obtain an oleophilic ceramsite. The method obtains a stable oleophilic structure by regulating the electronic structure and optimizing the adsorption energy of the intermediate through the synergistic effect of Fe and Co.
Owner:ANGANG STEEL CO LTD +1

Low-reflection ink and preparation method thereof

The invention discloses low-reflection printing ink and a preparation method thereof. The low-reflection printing ink is prepared by adding matting powder, carbon black and modified activated carbon powder into a resin material. Microcosmic roughness is formed on the surface of the coating after ink curing, specular reflection is reduced, in addition, the light absorption capacity of the coating is further enhanced through the modified activated carbon powder, and the modified activated carbon powder and the light absorption capacity of carbon black can well achieve a synergistic effect to jointly reduce light reflection of the coating. The prepared low-reflection ink has the advantages of being good in weather resistance, low in reflectivity, excellent in construction performance and the like.
Owner:HEFEI MICROCRYSTALLINE MATERIALS TECH CO LTD

Composite filter element and purifier

The utility model discloses a composite filter element and a purifier, and belongs to the technical field of purification, the composite filter element comprises an activated carbon layer and a carbon fiber layer which are laminated; and / or the composite filter element comprises a composite layer, and the composite layer comprises activated carbon powder and carbon fibers. According to the composite filter element disclosed by the utility model, the setting thickness of the activated carbon can be reduced through the high adsorption capacity of the carbon fibers, so that the overall volume of the composite filter element is reduced. Therefore, the volume of the filter element can be reduced on the premise of ensuring the adsorption efficiency, and the problems of overlarge volume and the like of the filter element with high adsorption performance in the prior art are solved.
Owner:FOSHAN MICRO MIDEA FILTER MFG CO LTD

High-efficiency adsorptive sewage treatment agent and preparation method thereof

This invention relates to the field of wastewater treatment technology, specifically to a highly efficient adsorbent wastewater treatment agent and its preparation method, comprising the following raw materials in parts by weight: 50-70 parts activated carbon powder, 8-12 parts deionized water, 5-10 parts ammonium bicarbonate, 1-3 parts sodium dodecyl sulfate, 15-25 parts additive A, and 8-15 parts additive B. In this invention, the stably loaded cerium ions can effectively exert their specific coordination and capture effect on heavy metals. The chitosan introduced into the carrier can enhance the electrostatic and chelate adsorption of anionic pollutants and organic molecules. Simultaneously, the well-developed pores formed after shellac carbonization combine with the network structure of chitosan, further increasing the specific surface area of ​​the material and the adsorption capacity of organic pollutants, achieving highly efficient and stable adsorption of heavy metals, dyes, and organic pollutants.
Owner:INNER MONGOLIA YAXIN ENVIRONMENTAL ENG TECH CO LTD

Mesoporous activated carbon powder regeneration device

The invention discloses a mesoporous activated carbon powder regeneration device, and relates to the technical field of activated carbon processing, the mesoporous activated carbon powder regeneration device comprises a bottom plate, a pair of side plates are fixedly arranged on the two sides of the bottom plate, and rectangular sliding plates are arranged on the side plates; a hollow shaft is inserted into the left rectangular sliding plate, an outer cylinder is fixedly arranged on the hollow shaft, and an inner cylinder is fixedly arranged in the outer cylinder; a fixed shaft is inserted into the right rectangular sliding plate, rotationally penetrates through the inner cylinder and the hollow shaft and extends to the outermost side, and a concentric disc sleeves the fixed shaft and is rotationally connected with the right ends of the outer cylinder and the inner cylinder; a plurality of crushing shafts are rotatably inserted into the concentric disc, are positioned between the inner ring surface of the outer cylinder and the inner ring surface of the inner cylinder, and are fixedly provided with a plurality of crushing reamers. By recycling the waste activated carbon, economic benefits can be brought, and damage to the environment can be reduced.
Owner:SHANXI XINHUI ACTIVATED CARBON CO LTD

Activated carbon dust recycling system

The utility model discloses an activated carbon dust recycling system which comprises an activated carbon stirrer, a dust collection cover is installed above the activated carbon stirring machine, a dust collection structure is connected to the dust collection cover, a filter plate is installed in the dust collection cover, supporting rods are installed on the two sides of the dust collection cover, an anti-blocking structure is connected to the two supporting rods, a supporting frame is connected to the dust collection structure, a material receiving structure is installed on the supporting frame, and the dust collection structure comprises a dust collection pipe. The dust collection pipe is mounted on one side of the dust collection cover and is communicated with the dust collection cover; when the activated carbon stirrer is used for stirring activated carbon, the fan can be started, dust generated during stirring can be sucked into the dust hood by utilizing the suction force of the fan, then the dust is conveyed into the cloth belt dust remover by utilizing the collecting pipe, and the dust can be filtered and recycled by utilizing the cloth belt dust remover, so that the waste of the activated carbon dust is reduced; and a filter plate is arranged in the dust hood, so that larger activated carbon particles or impurities can be blocked and filtered.
Owner:BINZHOU FENGHUO LIANYING ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD

Water-resistant honeycomb activated carbon and preparation method thereof

The present invention relates to a kind of water-resistant honeycomb activated carbon and preparation method thereof, belong to the technical field of activated carbon. A kind of preparation method of water-resistant honeycomb activated carbon comprises the following steps: 1) after heating and firing the coconut shell raw material after cleaning; 2) under nitrogen atmosphere, cyano-modified polyphenylene sulfide, polyetherimide, accelerator and activated carbon powder are mixed uniformly and then heated to react, cooled and washed, and dried; 3) N, N-dimethylacetamide is added to activated carbon intermediate and heated and extracted, solid is filtered and taken, put into anhydrous ethanol and soaked, solid is filtered and taken, after washing; 4) modified activated carbon is placed in anhydrous ethanol, tetrabutyl titanate is added and stirred and mixed, ferric nitrate solution is added by spraying under stirring, ultrasonic treatment is carried out after the addition of materials is completed, solid is filtered and taken, and microwave drying is carried out after centrifugation. The water-resistant honeycomb activated carbon prepared by the present invention has higher stability, water resistance and adsorption.
Owner:龙岩市华研活性炭科技有限公司