59 results about "Coal Tar Pitches" patented technology

The invention discloses coal pitch-based super capacitor carbon and a preparation method and application thereof, and the preparation method of the super capacitor carbon comprises the steps: dissolving coal liquefaction refined pitch in an organic solvent, and adding ZnCl2, KCl and potassium citrate to obtain a pitch solution containing an ionic hot molten salt activator; the preparation method comprises the following steps: soaking a biomass template in a dopamine aqueous solution, and then mixing with an asphalt solution to obtain a biomass template-asphalt compound; and oxidizing, carbonizing, activating, washing and drying the compound to obtain the capacitor carbon. And mixing and heating the capacitor carbon, a nitrogen source and a phosphorus source, and carrying out graphitization doping. The pitch-based super capacitor carbon with high specific surface area, excellent electrochemical performance and environmental protection advantages is prepared through a biomass template method, and the preparation process has great potential in the field of energy storage.

The invention discloses porous carbon with a gradient structure, a preparation method of the porous carbon and application of the porous carbon in a negative electrode of a lithium ion battery. The porous carbon has a gradient structure with compact micropores on the surface and loose macropores inside. The preparation method of the porous carbon comprises the following steps: carrying out oleophylic modification on SiO2 to obtain hydrophobic SiO2; carrying out hydrophilic coating on NH4Cl to obtain PVP (Polyvinyl Pyrrolidone) coated NH4Cl; the preparation method comprises the following steps: mixing coal pitch, methylbenzene, oleic acid, hydrophobic SiO2 and PVP (at) NH4Cl to form a suspension; preparing a spherical precursor by a micro-fluidic emulsification method; and carbonizing, sequentially carrying out oxygen plasma treatment and HF solution etching, and removing the template to obtain the porous carbon with the gradient structure. The gradient distribution of the template and the pore-forming agent is realized through surface modification difference and a microfluidic technology, the pore structure and the particle size can be accurately regulated and controlled, the process is simple, the compatibility is high, the prepared porous carbon can be used as a substrate for a silicon-carbon composite negative electrode material, the volume expansion of silicon can be effectively buffered, and the service life of the silicon-carbon composite negative electrode material is prolonged. And the first coulombic efficiency, the specific capacity and the cycling stability of the lithium ion battery are improved.

This invention provides a coal tar pitch-based nickel catalyst, its preparation method, and its application, belonging to the field of solid waste resource recycling and synthetic carbon materials technology. This invention uses a mixed roasting method to prepare a coal tar pitch-based nickel catalyst with micropores and mesopores from the residual coal tar pitch after coal tar extraction. The synergistic effect of active nickel as an active site and the functional groups on the support surface significantly improves its catalytic liquefaction performance, exhibiting the advantages of "low cost, high temperature resistance, and strong adaptability." The preparation method provided by this invention not only offers an effective way for the high-value recycling of coal tar pitch but also provides a low-cost material for green conversion, environmental governance, catalysis, and other fields. It represents a green resource utilization strategy with significant economic and environmental benefits and broad commercial prospects.

This application provides a method for preparing ferrocoke using zinc-containing dust and lean coal, belonging to the fields of iron and steel metallurgy and low-carbon ironmaking technology. The method uses zinc-containing dust and lean coal as raw materials, adding 10% medium-temperature coal tar pitch as a binder by weight of the total ferrocoke. During the ferrocoke preparation process, the metallic elements and their oxides in the zinc-containing dust can promote the reaction between carbon and CO2 at high temperatures, making carbon more easily consumed. Simultaneously, Zn volatilizes and migrates under high-temperature reducing conditions, making the local carbon structure loose and gradually forming interconnected pore structures around the dust particles. These pores facilitate the entry of CO2 gas into the ferrocoke to participate in the reaction, while also helping the generated gas to be discharged in a timely manner, thereby reducing mass transfer resistance. Through this effect, not only is the gasification reaction process accelerated, but the overall reaction performance of the ferrocoke is also improved, giving it higher gasification efficiency, making it suitable for blast furnaces, reducing the coke ratio, and improving smelting efficiency.

The application relates to the technical field of lithium battery cartridge manufacturing, and particularly discloses a short-fiber carbon fiber reinforced carbon-carbon cartridge and a preparation method thereof. The short-fiber carbon fiber reinforced carbon-carbon cartridge comprises the following raw materials in parts by weight: 15-45 parts of chopped carbon fibers, 38-63 parts of carbon powder or graphite powder, 10-40 parts of resin, 10-20 parts of coal tar pitch and 10-30 parts of fillers. The preparation method of the short-fiber carbon fiber reinforced carbon-carbon cartridge comprises the following steps: S1, stirring and mixing raw materials to obtain a mixture for standby; S2, placing the mixture obtained in S1 in a product mold and hot-pressing to form; S3, placing the semi-finished product hot-pressed in S2 in a high-temperature furnace for carbonization, and keeping vacuum or filling protective gas during the carbonization process; and S4, placing the semi-finished product carbonized in S3 in a high-temperature deposition furnace for CVI gas phase deposition to deposit a C coating, so as to obtain the short-fiber carbon fiber carbon-carbon cartridge.

The present invention relates to a process for needle coke production by co-processing coal tar pitch (CTP) with petroleum streams. The process utilizes a ‘multi-residence time mild thermal cracking’ of coal tar pitch with petroleum streams (CLO, PFO) followed by solvent-assisted selective separation of undesirable quinoline insoluble (QI) and solid catalyst fines from the mixed pitch and delayed coking thereafter to produce needle coke. The solvent employed for feedstock purification is a mixture prepared from an aromatic solvent which is a lighter fraction formed by mild and severe thermal cracking of mixed feedstock, an aliphatic solvent and a polar extraction solvent.

The present application belongs to the technical field of petroleum processing and the field of carbon material preparation, and discloses a preparation method of spinnable mesophase pitch based on co-carbonization of coal tar pitch and catalytic cracking slurry. Coal tar pitch and xylene-soluble components of coal tar pitch extracted by xylene are mixed with catalytic cracking slurry, and then co-carbonization reaction is carried out. The reaction product is crushed, secondarily extracted, filtered, and then subjected to low-temperature heat treatment to obtain spinnable mesophase pitch. Through raw material cooperation and multi-stage purification process, the present application realizes high content, high spinnability and structure controllability of mesophase pitch, and the process is simple, environmentally friendly and economical, and is suitable for large-scale production of high-performance pitch-based carbon fiber.

This invention relates to the field of electrochemical energy storage battery technology, specifically to a method for preparing a controllable pitch-based anode material, a hard carbon anode material, and a sodium-ion battery. The preparation method includes: S1. Pre-oxidation treatment: pre-oxidizing the raw materials to obtain an oxidized precursor with an oxygen content of 15%~35%; the raw materials are selected from at least one of pitch, biomass, and phenolic resin; S2. Precursor compositing: mixing the oxidized precursor with a thermoplastic precursor at a mass ratio of 1~5:1 to obtain a composite precursor; the thermoplastic precursor is selected from at least one of petroleum pitch, coal tar pitch, phenolic resin, and aqueous phenolic resin; S3. Carbonization treatment: carbonizing the composite precursor under an inert atmosphere to obtain the pitch-based electrode material. The prepared carbon material has the advantages of uniform structure, stable interface, high reversible capacity, and high initial coulombic efficiency, and the preparation process is simple with controllable product quality.

The method comprises the following steps: distilling coal tar pitch at 300-350 DEG C for 10 minutes, carrying out vacuum drying on the distilled pitch at 120-150 DEG C, adding a modified boron nitride agent accounting for 10-15% of the total amount of a base material and an additive accounting for 8-12% of the total amount of the base material into the base material, uniformly mixing, and finally carrying out heat treatment for 1 hour, so as to obtain the modified asphalt with high carbon yield for the prebaked anode. And drying. In the modification of the high-carbon-yield asphalt, the coal tar asphalt is subjected to distillation, heat treatment, blending of a modified boron nitride agent and an additive, and heat improvement and optimization, so that the prepared asphalt is modified into a pre-baked anode product which is excellent in strength performance, electrical conductivity and high-temperature-resistant stability; the performance of the product can be improved in a coordinated manner.

The utility model relates to coal chemical industry technical field discloses a kind of recovery smelting device for coal pitch, including mounting bracket;Mounting plate, the mounting plate is fixedly connected in the upper portion of the mounting bracket;Smelting pot and discharge port, the smelting pot is fixedly connected in the middle portion of the mounting plate, and the discharge port is fixedly connected in the bottom of the smelting pot;Motor, the motor is arranged in the top of the smelting pot;Rotating rod, the rotating rod top is fixedly connected in the output end of the motor, and the rotating rod bottom is rotatably connected in the inside of the smelting pot and the discharge port;Connecting block and mounting rod, the connecting block is fixedly connected in the outside both sides of the rotating rod.The utility model in, when discharging, avoid the problem that liquid coal pitch is solidified if in the vicinity of discharge port, causes passageway blockage, to improve the discharging efficiency by auger blade rotation in the inside of discharge port.

The application discloses a catalyst preparation method for producing rubber oil from medium-low temperature coal tar pitch, and comprises the following steps: 1, adding active metal precursor, alumina precursor, molecular sieve and agate ball into a ball mill jar according to a stoichiometric ratio, and ball milling for 1 hour to obtain a viscous mixture; 2, drying the viscous mixture obtained in the step 1 in an oven at 110 DEG C for 6 hours, and then calcining at 550 DEG C for 4 hours to obtain an oxidized catalyst; 3, immersing the oxidized catalyst obtained in the step 2 in a sulfuration agent for 12 hours, and then drying at 90 DEG C for 3 hours to obtain a presulfurized product; and activating the presulfurized product obtained in the step 3 in an autoclave to obtain the catalyst for producing rubber oil from medium-low temperature coal tar pitch. According to the method, the carrier compounding and active metal loading are completed through one-time feeding, and no pre-sulfur waste liquid is generated. The catalyst has high activity, controllable pore and adjustable acidity, and has a good application prospect in the hydrogenation of medium-low temperature coal pitch.

This invention discloses a catalytically assisted graphitization method for graphite materials used in lithium-ion battery anodes, belonging to the field of lithium-ion battery technology. Spherical mesophase carbon microspheres are mixed with ferric nitrate nonahydrate and ammonium molybdate in liquid phase and then spray-dried to obtain composite microsphere powder loaded with an iron-molybdenum catalyst precursor. This powder is then heated and mixed with medium-temperature coal tar pitch and cold isostatically pressed to obtain a composite green body. After gradient carbonization treatment, an isotropic stress field is established within the body using the shrinkage of the pitch carbonization. High-temperature catalytic graphitization is then performed at 2600℃-2800℃, causing the iron-molybdenum to form a eutectic catalytic system. This system, in conjunction with the stress field, induces carbon atom rearrangement, forming a highly crystalline graphite structure with a high degree of surface graphitization and an isotropic interwoven internal structure. Finally, the graphite is obtained through dissociation, pulverization, and classification. This invention achieves a balance between high capacity and high rate performance of the anode material through the synergistic effect of catalysis and the stress field.

A method for preparing coal tar pitch-based hard carbon anode material belongs to the field of anode materials. This method uses coal tar pitch as a raw material, leveraging its advantages of wide availability and high carbon content (rich in aromatic compounds). A precursor is obtained by adding a crosslinking agent and a modifier, followed by high-temperature sintering to obtain hard carbon. This invention improves the interlayer spacing of the material through the modifier, resulting in hard carbon with high specific capacity and initial coulombic efficiency, with an initial discharge specific capacity exceeding 300 mA hg. ‑1 .

The application discloses a method for preparing mesophase pitch by hydrogenating coal tar pitch components, which comprises the following steps: obtaining three components A, B and C or four components A, B, C and D or five components A, B, C, D and E from coal tar pitch by using a step-by-step extraction method; adding a hydrogen-donating solvent and a catalyst into heavy components separated from the coal tar pitch, and performing hydrogenation treatment to obtain hydrogenated heavy components; mixing the hydrogenated heavy components and unhydrogenated components according to a certain proportion to obtain modified pitch; and performing thermal polycondensation reaction on the modified pitch to obtain mesophase pitch. The modified pitch has a suitable molecular composition for preparing mesophase pitch, the molecular weight range is reasonable and the distribution is concentrated, the prepared mesophase pitch has high anisotropy content and good optical structure, and is rich in wide-range flow line structure, so that the mesophase pitch is a high-quality precursor for preparing carbon fiber and needle coke and other carbon materials.

The invention belongs to the technical field of coal pitch carbon fibers, and discloses a hollow coal pitch carbon fiber and a preparation method thereof. Comprising the steps of coal-based pitch preparation, melt spinning, pre-oxidation, carbonization and graphitization. According to a specific spinning process, the coal-based pitch carbon fiber with high strength and a hollow structure can be prepared. The hollow coal-based pitch carbon fiber prepared by the method not only keeps higher mechanical properties, but also has high thermal conductivity, the cost is effectively saved, meanwhile, the comprehensive performance is remarkable, finally, the yield of the coal-based pitch carbon fiber can be improved, and the coal-based pitch carbon fiber has wide application prospects.

The invention discloses a silicon-carbon-based high-temperature electric heating energy storage material as well as a preparation method and application thereof, and belongs to the technical field of high-temperature heat storage materials. The silicon-carbon-based high-temperature electric heating energy storage material provided by the invention is prepared from the following raw materials: silicon carbide powder, a binder and silicon powder, the binder comprises at least one of coal pitch, petroleum pitch, phenolic resin and epoxy resin. The silicon-carbon-based high-temperature electric heating energy storage material provided by the invention overcomes the problems of difficult heat transfer and poor high-temperature conductivity stability of a heat storage material in the prior art, the material directly utilizes the Joule heating effect to realize spontaneous heating, and a traditional electric heating wire structure is omitted; and the comprehensive advantages of high efficiency, long service life and high safety of the material in high-temperature electric heating energy storage application are ensured.

The invention relates to the technical field of prebaked anodes, in particular to an anti-oxidation corrosion-resistant prebaked anode and a preparation method thereof. The oxidation-resistant corrosion-resistant prebaked anode comprises the following raw materials: calcined petroleum coke, coal pitch, crushed materials and an additive, and the mass ratio of the calcined petroleum coke to the coal pitch to the crushed materials to the additive is 100: (14.2-15.2): (5-15): (1-5); the calcined petroleum coke comprises a coarse coke material with the particle size of 5-10 mm, a medium coke material with the particle size of 1-5 mm and a fine coke material with the particle size of 0.1-1 mm; the mass percent of the coarse coke material in the calcined petroleum coke is 30-40%, the mass percent of the medium coke material in the calcined petroleum coke is 30-40%, and the balance is the fine coke material. The compactness and the oxidation resistance of the prebaked anode are effectively improved, the air permeability is reduced, and collaborative optimization and improvement of the conductivity and the compactness are achieved.

This invention discloses a prefabricated substation combined foundation and its construction method, belonging to the technical field of prefabricated substation combined foundation construction. The combined foundation includes multiple precast pipe piles and a precast platform. The lower ends of the precast pipe piles are embedded in the foundation, while the upper ends protrude above the ground. The bottom surface of the precast platform is fixedly connected to the tops of all the precast pipe piles. The precast platform includes a load-bearing frame and a panel laid on the frame. During construction, the pile position deviation is first measured and controlled by setting out lines. Then, the piles are driven, and the verticality of the pile body is orthogonally checked using a double theodolite. Next, the precast platform is hoisted and aligned. Finally, it is welded and fixed, and multi-layer composite anti-corrosion treatment is applied. This invention adopts a fully prefabricated dry construction method, eliminating the need for cast-in-place concrete and curing. The construction cycle for a single foundation is shortened from the traditional 35 days to 2 days. Through designs such as a weld height ≥8mm and an epoxy coal tar pitch and fiberglass cloth composite anti-corrosion layer, the connection strength and durability are guaranteed.

This invention belongs to the field of chemical technology, specifically relating to a method for preparing an impregnating agent for graphite, comprising the following steps: (1) mixing an aromatic hydrocarbon polymer with an organic solvent, and then mixing it with medium-temperature coal tar pitch to obtain liquid-phase pre-prepared pitch; the aromatic hydrocarbon polymer is the remaining product after evaporation and purification of 2-hydroxy-5-nonylbenzaldehyde and 2-hydroxy-5-nonylphenylacetone at 120-160℃; (2) allowing the mixture to settle and separate into layers, and taking the upper extract to obtain refined pitch containing solvent; (3) obtaining refined pitch after separating the organic solvent; (4) obtaining mesophase microspheres through thermal polymerization; (5) removing the remaining light components in the mesophase microspheres to obtain the impregnating agent for graphite. This invention finds that by using an aromatic hydrocarbon condensate polymer without quinoline insolubles as one of the raw materials, the quinoline insoluble content of the product is reduced without reducing the functional performance of the impregnating agent, the softening point is moderate, and the production cost is effectively reduced.

The invention provides an anode carbon block soaked with carbon. An adhesive for the anode carbon block soaked with the carbon comprises the following raw material components in parts by weight: 50-55 parts of coal pitch, 25-30 parts of borax, 10-15 parts of kaolin, 30-35 parts of industrial phosphoric acid, 40-45 parts of carbon tetrachloride and 50-55 parts of water. The preparation method of the soaked carbon anode carbon block comprises the following steps: measuring the surface temperature of an anode cooked block by using an infrared temperature measuring gun, slowly putting the anode cooked block into a soaking pool, keeping for 30-60 seconds, keeping for 25-35 seconds in the air, and then putting the anode cooked block into a drying oven for drying, thereby obtaining the soaked carbon anode carbon block. The service life of the anode carbon block obtained through the preparation method of the soaked carbon anode carbon block is prolonged, the pole changing period of the anode carbon block is increased to 36 days or above from 34 days, the anode carbon consumption is reduced, and the electrolytic bath process is stabilized.

The invention relates to the technical field of carbon material preparation, and discloses a preparation method of a high-purity high-temperature-resistant graphite material for a photovoltaic thermal field, the high-purity high-temperature-resistant graphite material is prepared from pitch coke, artificial graphite fine powder and a high-wettability modified binder, and the binder comprises coal pitch, heavy anthracene oil and a surfactant. The preparation method comprises the following steps: micronizing aggregate, mixing and kneading the micronized aggregate and a modified binder at a high temperature, and carrying out secondary grinding to obtain pressed powder with preset grain size distribution; cold isostatic pressing forming is adopted, and the pressure relief time is strictly controlled; the green body is subjected to low-speed heating roasting, dipping densification and high-temperature graphitization treatment, and halogen gas is introduced into a graphitization high-temperature section for chemical purification. According to the invention, a composite aggregate system and a secondary granulation process are matched with a stress release regulation means for a large-size product, so that the technical problems that the large-size graphite product is easy to crack and low in density are solved, and the volume density, mechanical strength, purity and thermal shock resistance of the material are improved.

The present application provides a kind of coal-based mesophase pitch and its preparation method, belong to pitch preparation technical field.The preparation method includes the following steps: coal-based raw pitch is pretreated, and refined coal pitch is obtained;Distillation is carried out on refined coal pitch, and distillation coal pitch is obtained;Heat polycondensation reaction is carried out on distillation coal pitch, and coal-based mesophase pitch is obtained.The present application uses single coal-based raw pitch as raw material, with the help of the combination of pure physical purification of refining-distillation, cooperatively removes impurities and controls material composition, reduces the quinoline insoluble content of coal pitch to below 0.1wt%.On this basis, through non-catalytic heat polycondensation reaction, the mesophase conversion rate is significantly improved, and the performance consistency of the obtained product as carbon material precursor is improved.The process is simple, controllable, energy-saving and cost-effective, which provides a reliable technical path for the high-value utilization of coal tar pitch and the large-scale stable production of high-end carbon materials.

The present application belongs to the technical field of coal chemical industry, and relates to a method for preparing needle coke by adopting a two-stage extraction process, comprising the following steps: 1) cutting the washing oil of a 230-300 DEG C fraction section and the coal tar pitch component of a >350 DEG C fraction section of a medium-low temperature coal tar by a conventional pressure reduction cutting; 2) obtaining hydrogenated tail oil by hydrogenating the medium-low temperature coal tar; and then cutting to obtain fraction oil of 230-350 DEG C; 3) two-stage extraction refining, compounding the product after the first-stage extraction of the coal tar pitch component with the fraction oil, and then performing the second-stage extraction by using the washing oil to obtain refined pitch, and cutting to obtain a >300 DEG C fraction section; and 4) thermal nucleation of the >300 DEG C fraction section and a naphthalene-based interfacial dispersant, and then performing a two-stage temperature and pressure process, calcining and cooling to obtain needle coke. By the two-stage extraction and compounding, the present application can fully remove heteroatoms and improve the efficiency of the refined pitch; and the large-basin mesophase pitch with high anisotropy content is obtained, and the needle coke with high fiber structure content is prepared.

This invention relates to the field of prebaked anode technology, and more particularly to an antioxidant and corrosion-resistant prebaked anode and its preparation method. The raw materials for the aforementioned antioxidant and corrosion-resistant prebaked anode include: calcined petroleum coke, coal tar pitch, calcined coke, and additives, with a mass ratio of 100:14.2-15.2:5-15:1-5. The calcined petroleum coke comprises: coarse coke with a particle size of 5-10 mm, medium coke with a particle size of 1-5 mm, and fine coke with a particle size of 0.1-1 mm. The coarse coke accounts for 30-40% of the mass percentage of the calcined petroleum coke, the medium coke accounts for 30-40% of the mass percentage of the calcined petroleum coke, and the remainder is fine coke. This invention effectively improves the density and antioxidant capacity of the prebaked anode, reduces air permeability, and achieves a synergistic optimization and improvement of conductivity and density properties.

The application discloses a kind of ceramic-based paint for enhancing the anticorrosion performance of boiler water-cooled wall, including by weight parts: amino silane coupling agent 10~15 parts, composite ceramic base material 15~30 parts, defoaming agent 2.5~5 parts, dispersion aid 2.5~4 parts, epoxy coal tar pitch 3~7 parts, chlorosulfonated polyethylene rubber 3~7 parts;The preparation method includes the following steps: S1, the preparation of mixture M, S2, the preparation of mixture N, S3, solidification cooling;The composite ceramic coating prepared by the application has excellent chemical medium corrosion resistance, good adhesion, high mechanical strength, good toughness and other comprehensive properties, and also has good acid resistance, alkali resistance and salt fog resistance at high temperature.

The present application belongs to the technical field of energy products, and particularly relates to a method for upgrading coal pitch and oil sludge by co-pyrolysis and a carbon black raw material, comprising the following steps: S1, pre-degradation: degrading organic alkali, thick oil ester, inorganic heavy metal ions and fillers in the oil sludge by actinomycetes and bacillus; the classification name of the bacillus is Bacillus arthriticus, the preservation address is China Center for Type Culture Collection, and the preservation number is CCTCC NO: M20232038; S2, co-pyrolysis: co-pyrolyzing the oil sludge after pre-degradation in step S1 under oxygen-rich fuel gas and carbon black tail gas CO2 and coal pitch, and obtaining a derivative. Through pre-degradation, co-pyrolysis, fractional distillation or reaction rectification, the utilization rate of oil product resources of the waste oil sludge is 85-90%, and the remaining 10-15% is used as filler carbon black.

The invention discloses a preparation method and application of inlaid highly isotropic coke, petroleum residual oil, petroleum asphalt, heavy oil or coal tar pitch are used as raw materials, a certain amount of graphene oxide or graphene is added, melt blending is carried out at a certain temperature, heat treatment is carried out at a certain atmosphere, pressure and temperature, and the inlaid highly isotropic coke is obtained. Isotropic semicoke rich in the superfine mosaic structure is prepared, and the superfine mosaic type highly isotropic coke is obtained after the obtained isotropic semicoke with the superfine mosaic structure is calcined. The isotropic degree of the prepared coke is greatly improved, and the isotropic degree and various performance indexes of the isotropic graphite material prepared by taking the prepared isotropic coke as the raw material are greatly improved.

The invention discloses cascade modified high-hydrophobicity low-porosity low-rank coal as well as a preparation method and application thereof, and belongs to the technical field of clean coal. The method comprises the following steps: drying and crushing low-rank coal to obtain pulverized coal; the method comprises the following steps: adding pulverized coal into a titanate coupling agent solution, introducing nitrogen, carrying out a stirring reaction, and carrying out post-treatment to obtain an intermediate product I; adding coal pitch into an organic solvent, uniformly stirring and mixing, adding the intermediate product I, stirring and reacting, and performing post-treatment to obtain the cascade modified high-hydrophobicity low-porosity low-rank coal. Under a mild condition, a titanate coupling agent is hydrolyzed to generate a Ti-OH group, the Ti-OH group and hydroxyl on the surface of the coal powder are condensed to form a stable Ti-O-C covalent bond, a hydrophilic site on the surface of the coal is converted into a hydrophobic site, and the hydrophobicity is preliminarily improved; and hydrophobic coal pitch molecules form a coating layer on the surface of the coal, so that the porosity is effectively reduced, and the hydrophobicity is improved. By improving the forward adsorption of the dispersant on the surface, the content of bound water in the slurry is reduced, and the concentration and dispersion stability of the coal water slurry are improved.

The present application relates to a kind of coal tar pitch with efficient transport separation device, it is related to the transport field of coal tar pitch, including support assembly, transport component and discharging component.Support assembly includes hollow cover;With the support unit being connected with cover.Transport component includes the positioning unit being placed in the hollow receiving chamber of cover, and positioning unit is multiple;Conveying unit is placed in the hollow receiving chamber of cover.Discharging component includes the hollow and two ends open discharging plate;With the discharge unit being connected with discharging plate.Limiting scraping unit is arranged in the hollow receiving chamber of cover, and conveying unit is through limiting scraping unit.The present application can scrape and clean the adhered material on the working surface of transport unit by the limiting scraping unit, to ensure the quality and efficiency of unloading operation.Meanwhile cooperate with the discharge unit, can be directly connected with loading vehicle during unloading process, whole process is wrapped, avoid material and air contact, effectively improve the safety of unloading separation process.

The invention belongs to the technical field of activated carbon for a super capacitor, and particularly relates to activated carbon for a high-magnification super capacitor and a preparation method, and the preparation method comprises the following steps: 1) carrying out esterification reaction on phytic acid and a hydroxybenzaldehyde derivative under the action of a carbodiimide condensing agent to obtain aldehyde group modified phytic acid; 2) pre-oxidizing the coal pitch, dissolving the coal pitch, the aldehyde modified phytic acid and a catalyst in an organic solvent in an inert atmosphere, and performing temperature-controlled reaction, reduced pressure distillation and crushing to obtain modified asphalt master batch; and 3) uniformly mixing the coal pitch and the modified pitch master batch, carbonizing, and activating and pore-forming an obtained carbonized product to obtain the activated carbon for the high-rate supercapacitor. Formyl modified phytic acid in the modified asphalt master batch is connected to compound molecules in the coal pitch through reaction chemical bonds to form high-concentration and uniformly-dispersed master batch, the modified asphalt master batch is mixed with the coal pitch, the formyl modified phytic acid has the effects of a phosphorus source and an activating agent, the resistance is reduced, and finally, the conductivity and the rate capability of the activated carbon are improved.