49 results about "Carbon Additive" patented technology

The invention discloses a method for preparing carbon/carbon composite profiles, comprising the following steps: after carbon fiber cloths are impregnated into resins, curing the carbon fiber cloths by way of external tooling pressing or mould pressing after cutting, layering or winding, and preparing carbon/resin based composite profile products after curing and demoulding; carrying out carbonization treatment under the protection of N2 to prepare carbon/carbon composite profile semi-finished products; carrying out supplementary densification treatment on the carbonized carbon/carbon composite profile semi-finished products by metallic or graphite moulds and tooling; carrying out mechanical processing on the carbon/carbon composite profile semi-finished products subjected to supplementarydensification to prepare the carbon/carbon composite profile products. The technology of the invention is simple, low in cost and strong in implementation. As carbon additive cloth cutting, layeringor winding and external tooling pressing or mould pressing curing and shaping modes are adopted, the prepared carbon/carbon composite profiles have a series of advantages as follows: the shaping modeis simple; the sizes of the products are hardly limited and mechanical processing is unnecessary in the thickness direction, thereby having superior performance-price ratio.

Capacitor pastes for flooded deep discharge lead-acid batteries include lead oxide, a carbon additive, and an aqueous acid. The capacitor paste contains lead and carbon in a lead to carbon mass ratio of about 5:1 to 82:1. Hybrid negative plates for flooded deep discharge lead-acid batteries can be made using such pastes in combination with traditional pastes. The hybrid negative plates include a capacitor paste on a bottom portion of the plate, and a traditional paste on the remainder of the plate. Batteries using the capacitor paste and hybrid plates exhibit improved performance over batteries with conventional plates and pastes and require less overcharge to prevent electrolyte stratification.

A stretchable protective cover for footwear, formed from a natural rubber or elastomeric material. Small particles of activated carbon are interspersed in the material making up the cover, in order to suppress the scent of a wearer. The footwear cover may have a textured bottom surface to resist slippage. The cover is configured to completely cover and surround at least a portion of the footwear below the ankle area thereof.

The invention discloses a carbon-based compound fertilizer and biomass gas co-production technology based on municipal sludge. The technology comprises the following steps: 1) dehydration; 2) crushing; 3) mixing: 53%-92% by mass of sludge particles, 1%-40% by mass of straw powder and 3%-8% by mass of a carbon sequestration additive are mixed, wherein the carbon sequestration additive contains diatomite, calcium oxide and magnesium ore powder; 4) drying; 5) granulation; 6) pyrolysis and gasification: biomass derived fuel particles are fed into a gasifier and subjected to pyrolysis and gasification under the micro-oxygen condition of air equivalent ratio being 0.18-0.25 at 600-800 DEG C, biomass mixed fuel containing part of purities is obtained, and carbon residues in the gasifier are discharged; 7) gas separation: wood tar and wood vinegar are removed from the biomass mixed fuel through purification, and the purified biomass mixed fuel is taken as gas fuel; 8), carbon-based compound fertilizer preparation: 40%-60% of the carbon residues, 12%-20% of a wood tar and wood vinegar mixed liquid, 20%-35% of inorganic nitrogen phosphorus and potassium fertilizer and 2%-5% of diatomite are mixed. Biomass in the municipal sludge and residues obtained after energy conservation treatment can be used efficiently, by means of the obtained compound fertilizer, soil granulation can be increased, the rate of utilization of the fertilizer by crops is increased, heavy metal components are solidified, secondary pollution to the environment is avoided, few resources are consumed, and the comprehensive economic benefits are increased.

An electrode and a lead-acid battery including the same are disclosed. The electrode comprises active material comprising lead and a carbon additive configured to increase a charge input of the lead-acid battery by at least 17%, relative to a negative electrode without the carbon additive.

The present invention may be used in the production of highly efficient films for electron field emitters. The cold-emission cathode of the present invention comprises a substrate having a carbon film with an irregular structure applied thereon. This structure comprises carbon micro- and nano-ridges and/or micro- and nano-threads which are perpendicular to the surface of the substrate, which have a typical size of between 0.005 and 1 micron as well as a distribution density of between 0.1 and 100 mum-2, and which are coated with a diamond nano-film whose thickness represents a fraction of a micron. The method for producing the cathode involves sequentially depositing two carbon films. A carbon film with nano-barbs is first deposited on a substrate arranged on an anode by igniting a direct-current discharge at a density of between 0.15 and 0.5 A. This deposition is carried out in a mixture containing hydrogen and a carbon-containing additive, under a global pressure of between 50 and 300 torrs, using vapors of ethylic alcohol at a 5 to 15% concentration or vapors of methane at a 6 to 30% concentration, and at a temperature on the substrate of between 600 and 1100° C. A diamond nano-film is then deposited on the graphite film thus grown.

The present invention relates to refractory carbon material for iron smelting blast furnace, and is especially high heat conductivity carbon brick for blast furnace lining and its production process. The high heat conductivity carbon brick for furnace lining has material comprising adhesive 20-24 wt%, crushed graphite 40-50 wt%, roasted segment 25-37 wt% and non-carbon additive 1-3 wt%. The main materials are side products from carbon plant, needs no calcining, and results in low cost. Using great amount of crushed graphite makes the carbon brick possess heat conducting coefficient up to 30 W/m.K, and is favorable to strengthening the furnace bottom cooling effect and prolonging blast furnace life.

The invention relates to a dry distillation carbonizing treatment system for urban and rural lightweight wastes, and belongs to the technical field of garbage treatment. The dry distillation carbonizing treatment system comprises three parts including a dry distillation carbonizing kiln device, a dust-removal purification device and a wastewater circulation treatment device, wherein the dry distillation carbonizing kiln device is communicated with the dust-removal purification device by a flue positioned on a kiln body of the dry distillation carbonizing kiln; after the wastes are subjected to treatment of dust removal, washing and purification by heat energy and flue gas which are produced by dry distillation carbonizing, the flue gas is exhausted from the top of a chimney; wastewater flows into the wastewater circulation treatment device through a wastewater drainage pipe, is precipitated and filtered, and then is pumped into the dust-removal purification device for sprinkling the flue gas to realize circulation treatment and utilization of wastewater. When the system is used by combination with the steel-making field, high-temperature gas produced by dry distillation carbonizing can be used for drying steel-making auxiliary materials or generating electro-thermal energy, carbide can be used as raw materials for steel-making carbon additives and ladle covering agents, and ash contents can be used as raw materials in cement plants or used for preparing organic fertilizers, so that minimization, detoxification and resource of urban and rural lightweight waste treatment can be realized to a maximized extent.

The invention belongs to the field of biomass utilization and discloses a method for controlling nitrogen emission in a process of preparing liquid oil from algae. The method comprises the following steps: S1: grinding and drying algae biomass and lignocellulose biomass; S2: putting the lignocellulose biomass in the step S1 into a fixed bed reactor and carrying out a pyrolytic reaction to obtain abiomass carbon additive; S3: mixing the algae biomass and the lignocellulose biomass in the step S1, and pyrolyzing the mixture to obtain a pyrolytic carbon solid and pyrolytic volatile components; S3: enabling a part of the nitrogen-containing substances in the pyrolytic volatile components to fully react with the biomass carbon additive obtained in the step S2, so as to fix a part of the nitrogen in the biomass carbon additive and achieve an aim of reducing nitrogen emission. According to the method provided by the invention, the nitrogen emission is effectively reduced, and the nitrogen can be converted into a nitrogen-doped carbon material with a high added value, thereby facilitating green utilization of the algae biomass.

The invention discloses a rapidly-hardened blast furnace hearth repair material, which comprises a solid material, an admixture and a binding agent, wherein the solid material contains corundum particles and/or fine powder, silicon carbide particles and/or fine powder, a carbon additive and composite superfine powder, and the admixture includes a dispersant and a coagulation accelerator. The invention further discloses a preparation method of the rapidly-hardened blast furnace hearth repair material. The repair material belongs to a downgrade flow type and rapidly-hardened type, can be pumped and poured by clinging to a hearth carbon brick formwork, a pouring body and carbon bricks are closely attached, the construction is rapid and simple and convenient, the repair material is rapidly hardened, the construction period can be effectively shortened by 25%, the structure integrity of the repaired hearth is good, no brick joint exists, and the compactness is high.

The invention discloses a dissolution method of monohydrate bauxite ore. An organic additive or a carbon additive is added to a bauxite dissolution system, and therefore, inhibition of a titanium mineral on the dissolving process of aluminum oxide is solved. Compared with the existing dissolution method of adding lime in the aluminum oxide industry, with the adoption of the dissolution method disclosed by the invention, the loss of the aluminum oxide can be reduced; the amount of discharged red mud is reduced by about 30%; and the burden of a dissolved ore slurry separating and washing system is reduced, and meanwhile, enrichment of iron mineral is facilitated and the iron mineral is transformed into easy-to-separate magnetic iron component.

The invention discloses a negative electrode carbon additive for improving charging acceptance of a lead-carbon battery, which belongs to the technical field of lead-acid battery manufacturing. In numerous biomass materials, the content of nanoscale silicon dioxide in the rice husks is as high as 20%. The rice husk is subjected to alkali treatment to remove most of nanoscale silicon dioxide on thesurface, and carbonization is performed to obtain the rice husk-based porous carbon mainly comprising macropores/mesopores. Macroporous and mesoporous structures of the rice husk-based porous carboncan provide a good ion conductor for an energy storage device, so that the kinetic activity of electrochemical reaction is improved. The rice husk-based porous carbon is uniformly mixed with one or more of activated carbon, carbon black, graphite, expanded graphite, graphene, single-walled carbon nanotubes, multi-walled carbon nanotubes and the like, so that the conductivity of the negative electrode carbon additive is further enhanced. The carbon additive for the negative electrode of the lead-carbon battery can effectively improve the charging acceptance of the lead-carbon battery, inhibit the sulfation phenomenon of the negative electrode of the lead-acid battery in a partial state of charge (PSoC) and prolong the cycle life of the battery in the PSoC.

The invention discloses a method for preparing hematite oxidized pellets. The method comprises the following steps: mixing hematite powder, carbonaceous additives, bentonite and water according to the mass ratio of 79.5-86:1-1.5:1-2:10~ 18 ratio to obtain a material mixture; said material mixture is pressed into balls to obtain green balls, wherein said green balls have at least one opening therethrough; and said green balls are sequentially dried, preheated And oxidation roasting treatment, in order to obtain the hematite oxide pellets. The method can effectively prepare and obtain high-reactivity hematite oxidized pellets, and the obtained hematite oxidized pellets have low roasting fuel consumption, high strength and good metallurgical performance, and are especially suitable for use in gas-based shaft furnaces.

The present invention relates to a silicon-carbon composite, which is present in a form of porous secondary particle and contains silicon nanoparticles, one or more conductive carbon additives, and a conductive carbon coating layer. The present invention further relates to a method for preparing said composite, and an electrode material and a battery comprising said composite.

An immersion heater including an encapsulated, semi-conductive, heating element. The heating element may be a non-metallic, carbon-based material in the form of a monofilament, a yarn or bundle of semi-conductive fibers which may be twisted, braided fibers or yarns, or the like. The encapsulation may be in the form of a tube of one or more layers of encapsulation material(s) with the heating element inserted therein. Alternately, the heating element may be thermoplastic with semi-conductive carbon additive, and the heating element may be coated with one or more external layers of insulating encapsulation material(s). The encapsulation material may be a rubber or thermoplastic material with sufficient chemical resistance to be immersed in a reservoir of fluid subject to freezing or thickening at low temperatures, such as DEF. The heater may be thermoformed into a predetermined fixed shape.

The invention relates to a rechargeable battery and an electrode compound for the same. The electrode compound comprises active substance, carbon additive and first semisolid electrolyte. The carbon additive and the first semisolid electrolyte are added into the electrode compound, so that electron conductivity can be enhanced, and interface resistance can be lowered; the first semisolid electrolyte is filled in gaps among active substance particles in an electrode, so that better contact and ion migration between active substance particles/first semisolid electrolyte interfaces are realized;the carbon additive can be uniformly distributed in the electrode or glued/coated on the surface of the electrode to serve as an electron conductive network for electron conduction and enhancing electron conductivity of the electrode. The electrode compound presents improved battery performance, and deep discharge cycling is enhanced.

The invention belongs to the technical fields of oil fields, petrochemical industry and hazardous waste environmental protection, and particularly relates to an oil sludge treatment method and system.The oil sludge treatment method comprises the following steps: 1) spraying superheated steam to oil sludge with carbon additives to obtain a mixture of oil-water steam and residues; 2) performing gas-solid separation on the mixture of the oil-water steam and the residues obtained in the step 1) to obtain the oil-water steam and the residues, and performing liquid-liquid separation on the oil-water steam to obtain oil and water. According to the oil sludge treatment method, reduction treatment of the oil sludge is effectively achieved, the residues can be harmless, and secondary pollution canbe prevented.

The present invention relates to the production of highly efficient films for field-effect electron emitters, wherein said films may be used in the production of flat displays, in electronic microscopes, in microwave electronics, in light sources as well as in various other applications. This invention more precisely relates to a cold cathode that comprises a substrate having a carbon film applied thereto. The carbon film has an irregular structure consisting of carbon micro-ridges and/or micro-threads which are perpendicular to the surface of the substrate, have a size ranging typically from 0.01 to 1 microns and a distribution density of between 0.1 and 10 mum2. This invention also relates to method for producing a cold electrode, wherein said method comprises generating a DC current discharge in a mixture comprising hydrogen and a carbon-containing additive, and further depositing the carbon phase on the substrate located at the anode. This method is characterized in that the discharge is generated at a current density of between 0.15 and 0.5 A/cm2. The deposition process is carried out in a mixture containing hydrogen and vapors of ethylic alcohol or methane, under an overall pressure of between 50 and 300 Torrs and at a substrate temperature of between 600 and 900° C. The concentration of ethylic alcohol vapors ranges from 5 to 10% while that of methane vapors ranges from 15 to 30%. This invention also relates to another method for producing a cold cathode, wherein said method comprises generating a microwave discharge at an absorbed power of between 100 and 1000 W. This discharge is generated in a mixture containing gaseous carbon oxide as well as methane in an 0.8-1.2 concentration and under a pressure of between 10 and 200 Torrs, the carbon phase being further deposited on the substrate. This method is characterized in that the deposition process is carried out at a temperature on the substrate surface that ranges from 500 to 700° C.

The invention provides a novel negative electrode material for a lithium-ion/potassium-ion battery and a preparation method thereof. The preparation method comprises the following steps of mixing terephthalic acid with conductive carbon additive, then adding distilled water, next, carrying out ball milling, and afterwards, drying; mixing a dried matter with a binder, and grinding, so as to obtainslurry; coating the obtained slurry on a matrix, and drying, so as to obtain the novel negative electrode material. The preparation method uses the terephthalic acid for preparing a negative electrodematerial for a battery; the obtained negative electrode material can be simultaneously used for the lithium-ion battery and the potassium-ion battery, so as to realize that one electrode material canbe simultaneously applied to two or more than two battery systems; the preparation method adopts the terephthalic acid as an important component of the negative electrode material; the terephthalic acid is jointly compounded with conductive carbon black and the binder, and the obtained negative electrode material, in the constant-electric-current charge and discharge processes of the lithium-ionbattery and the potassium-ion battery, can be used for improving the specific capacities of the lithium-ion battery and the potassium-ion battery, and meanwhile, has excellent cyclical stability.