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64results about How to "Microporous increase" patented technology

Method for preparing cold-bonded pellets from iron containing sludge by compound adhesive

InactiveCN101775489AReduce the amount of non-ferrous materialsReduce pollutionCelluloseSodium Bentonite
The invention relates to a method for preparing cold-bonded pellets from sludge containing iron by an compound adhesive, belonging to the technical field of adhesives for metallurgical ironmaking. The method of the invention comprises the following concrete steps: adopting the compound adhesive of an inorganic adhesive and an organic adhesive, wherein the organic adhesive in the compound adhesive comprises the following raw materials: vinyl acetate, acroleic acid, sodium cellulose glycolate, polyvinyl alcohol, polyisobutylene, molasses and coal tar; and the inorganic adhesive comprises the following raw materials: bentonite, calcium oxide, basic sodium silicate, sodium chloride, talcum powder and light calcium carbonate. When the organic adhesive and the inorganic adhesive in the adhesive are prepared, the components are proportioned and controlled strictly in a proper order, so that the defects of one adhesive singly used can be avoided, and the compound adhesive has good caking property on the iron containing sludge. The method of the invention recycles iron from iron containing sludge and changes waste into resources, thereby reducing pollution of storage and transport on the environment, and saving the energy consumption in the sintering and high furnace production.
Owner:TONGJI UNIV

Preparation method and application of activated carbon fiber-based adsorbent for removing hydrogen sulfide, hydrogen phosphide, arsenic hydride and ammonia gas

The invention provides a preparation method and application of an activated carbon fiber-based adsorbent for removing hydrogen sulfide, hydrogen phosphide, arsenic hydride and ammonia gas, and belongsto the technical field of air pollution prevention and control. The method comprises the following steps: firstly, carrying out remote argon plasma treatment on the activated carbon fiber, and then carrying out ultrasonic impregnation by using a hydrogen peroxide solution, so that the number of oxygen-containing functional groups such as phenolic hydroxyl, lactone and carboxyl on the surface of the activated carbon fiber is remarkably increased; modified activated carbon fibers and a copper nitrate solution are mixed and subjected to rotary evaporation, copper salt is loaded on the surfaces of the activated carbon fibers, the copper salt is converted into copper oxide after being roasted in a microwave muffle furnace, the copper oxide can serve as an active component for removing hydrogensulfide, hydrogen phosphide, arsenic hydride and ammonia gas, and therefore the removal efficiency of harmful gas is improved; the roasted activated carbon fiber is subjected to remote oxygen plasmatreatment, so that oxygen-containing functional groups on the surface of the activated carbon fiber can be enhanced, the anti-pollution performance of the activated carbon fiber-based adsorbent is improved, and the service life of the activated carbon fiber-based adsorbent is prolonged.
Owner:KUNMING UNIV OF SCI & TECH

Preparation method of amide group modified polystyrene-based ultrahigh crosslinking adsorption resin

The invention discloses a preparation method of an amide group modified polystyrene crosslinking resin. The method comprises the following steps: preparing an ester group modified precursor resin by asuspension polymerization of a water phase and an oil phase, adding a swelling agent and a Lewis acid catalyst to the precursor resin for a Friedel-Crafts reaction to obtain a post-crosslinking resin, and adding an aminating agent to the post-crosslinking resin for an amination reaction to prepare the cross-linking resin. In the preparation method, ester monomers containing double bonds are introduced, polarity of the resin is improved, numbers of micropore and mesoporous of the resin are increased by the Friedel-Crafts crosslinking reaction, and amide groups are formed by introducing the aminating agent. The specific surface area of the adsorbent can reach to be 900-1500 m2/g, the pore capacity is 1.012-1.412 cm<3>/g, and the average pore size is 1-20 nm. The hydrophobic force and hydrogen bond action with adsorbed substances are easy to form when adsorbing, thus the adsorption performance of the resin is improved. The preparation process is simple, and reaction conditions are easy to control, so that the resin can be suitable for industrialized production.
Owner:GUANGDONG UNIV OF TECH

Earthworm amino acid stable organic-inorganic soil conditioner and processing technology thereof

The invention especially relates to an earthworm amino acid stable organic-inorganic soil conditioner and a processing technology thereof, belonging to the field of soil conditioners. The soil conditioner comprises an earthworm amino acid solution, urea, earthworm cast, humic acid, fly ash and a long-acting agent. The composition of the above-mentioned components by mass is that 20 to 50 parts of the earthworm amino acid solution containing 90% of water, 15 to 50 parts of urea containing 46.3% of nitrogen and 1% of water, 10 to 36 parts of earthworm cast containing 1% of nitrogen, 25% of water and 42% of organic matters, 5 to 25 parts of humic acid containing 80% of organic matters and 20% of water, 1 to 35 parts of fly ash containing 8% of organic matters and 8% of water and 0.5 to 13 parts of the long-acting agent containing 40.4% of a digestion inhibitor and 16.28% of a urease inhibitor. The urease inhibition rate and digestion inhibition rate of the soil conditioner provided by the invention exceed requirements prescribed in international stability standard HG/T4135-2010; and the soil conditioner has increased nitrogen content, good stability effect and a high utilization rate, is rich in calcium, magnesium, silicon and 18 amino acids favorable for crop growth, and provides effective guarantee for high and stable yield of crops.
Owner:TIANJIN JIALIMING EARTHWORM BREEDING

Adsorption array and cryogenic pump with adsorption array

The invention discloses an adsorption array and a cryogenic pump with the adsorption array. The adsorption array comprises a heat transfer plate and a connecting plate, wherein a plurality of cryogenic plates are arranged on the heat transfer plate, the outer contours of the cryogenic plates are in a circular arc shape, and the outer contours of all the cryogenic plates are located on the same virtual spherical surface; and an adsorption material is arranged on each cryogenic plate. The cryogenic pump comprises the adsorption array, a refrigerating machine and a shell, wherein a radiation shield is arranged in the shell; the adsorption array is installed at the end part of a second-stage cooling stage through the connecting plate; the connecting plate is perpendicular to the axis of the second-stage cooling stage; the second-stage cooling stage and the adsorption array are both located in the radiation shield; a baffle is arranged at an opening of the radiation shield; a pump opening flange is arranged at the opening of the shell; and the opening direction of the radiation shield is the same as that of the shell, the axis of the radiation shield coincides with the axis of the shell, and the axes of a first-stage cooling stage and the second-stage cooling stage are perpendicular to the axis of the radiation shield. The cryogenic pump has the advantages that H2 can directly and quickly reach the adsorption material and is captured, and the pumping speed of the cryogenic pump on the H2 is increased.
Owner:VACREE TECH

Anti-corrosion silicon carbide wear-resistant material and preparation method thereof

The invention discloses an anti-corrosion silicon carbide wear-resistant material and a preparation method thereof. The anti-corrosion silicon carbide wear-resistant material is prepared from the following raw materials by weight: 25-30 parts of silicon carbide, 12-15 parts of a reinforcing agent, 3-5.5 parts of zinc oxide, 12-15 parts of phenolic resin, 8-10 parts of nano-graphite, 3-5 parts of aluminum oxide, 6-8 parts of a dispersing agent and 40-50 parts of deionized water. The reinforcing agent is prepared in the preparation process, the reinforcing agent contains modified nano activated carbon, the surface of the reinforcing agent contains a large number of copper ions, the copper ions easily form copper oxide with oxygen, meanwhile, the reinforcing agent contains an intermediate F, the intermediate F belongs to aromatic polyamide, the intermediate F contains an alkyl long-chain structure and two nitryl groups, nitryl is a hydrophobic group, so that the water solubility of the intermediate F is greatly reduced, the anti-corrosion silicon carbide wear-resistant material does not have the phenomenon of wear-resistant substance loss after being soaked in water, and the wear resistance and corrosion resistance of the anti-corrosion silicon carbide wear-resistant material are further ensured.
Owner:宜兴市中电耐磨耐火科技有限公司

Rice husk rapid charring method and carbonization furnace

The present invention discloses a method for fast carbonizing rice husk and a carbonizing furnace. The method is that self-igniting type rice husk is directly heated to manufacture char, the bottom of the carbonizing furnace is provided with a layer of the rice husk or other raw materials as a fixing layer, and igniting material is used to ignite the fixing layer. The method of continuously feeding above the furnace and the method of inducing air under the furnace are adopted, after the rice husk is carbonized, the air inducing is stopped, and a spraying cooling method is used to activate and cool the rice husk. The present invention combines the fast carbonizing technology and the activating technology subtly to reduce the carbonization time, ensure the continuous production, improve the production efficiency and save the production cost. The present invention adopts the technology of spraying hydrosphere for cooling and activating, which effectively improves the char absorption capability and ensure that the char has better activity. The finished product of a rice husk char of the present invention has wide application range and can be used as fertilizer sustained-release agent, feed additive, smelting melting agent, food additive, medical additive etc. The present invention can make the raw material into granules, then is carbonized to be directly used in absorbent, antistaling agent and order absorber and also can be used as the fuel for high-grade barbecue and field operation personnel.
Owner:徐克文

Preparation method of nitrified modified biochar fertilizer

The invention discloses a preparation method of a nitrified modified biochar fertilizer. The preparation method comprises: (1) respectively drying a biomass raw material and human-livestock manure in the sun or baking the material, and crushing into powder; (2) weighing and mixing the treated biomass raw material, the treated human-livestock manure and a catalyst according to a mass ratio of 3:2:1; (3) carrying out dewatering and oxygen discharging; (4) carrying out cracking carbonization; (5) adding the mixed liquid of concentrated sulfuric acid and concentrated nitric acid to a biochar fertilizer, and carrying out nitrification treatment to obtain a nitrified biochar fertilizer; and (6) adding water and stannous chloride to the nitrified biochar fertilizer, and carrying out heating reflux treatment to obtain the nitrified modified biochar fertilizer. According to the present invention, the preparation method is simple; the prepared nitrified modified biochar fertilizer has the substantially improved heavy metal ion adsorption performance, can be recycled through the desorption regeneration after the adsorption, and has the high fertilizer efficiency; and after the application of the nitrified modified biochar fertilizer in the soil, the soil structure can be improved, and the nitrified modified biochar fertilizer can be used as the fertilizer so as to well meet the requirements of the growth of crops.
Owner:黄名义

Self-cleaning glass with strong adhesive force, and preparation method thereof

The invention discloses strong-adhesion self-cleaning glass and a preparation method thereof. The strong-adhesion self-cleaning glass comprises a glass base layer, wherein a strong-adhesion bonding layer is attached to the glass base layer, a self-cleaning nano material layer is arranged on at least one side of the bonding layer, the thickness of the glass base layer is 3-12 mm, metal is any one of chromium, magnesium, tin, aluminum and manganese, the bonding layer adopts a silanized metal layer, the metal silylated glass is immersed in titanium dioxide sol for dipping, and a dip-coating process is adopted to prepare the film, and comprises the following steps: immersing the obtained metal silanized glass sheet in the prepared titanium dioxide sol for 1 min. According to the invention, Si-O-Me covalent bonds are formed through silane metal ions to form a silanized metal layer, and SiOH groups and the surface of glass form a silane film with a Si-O-Si three-dimensional network structure, so that the adhesive force between the film and the glass is greatly improved, the silane metal layer and the titanium dioxide nano layer are partially compounded, and the photocatalysis rate and the hydrophilic performance of the self-cleaning glass are enhanced.
Owner:佛山市金耀华玻璃新材有限公司

High-performance sound-absorption and thermal-insulation material production line

The invention relates to a high-performance sound-absorption and thermal-insulation material production line which comprises a main frame, wherein a plastic extruding machine is arranged above the main frame; a round roller net forming machine is arranged in the main frame; a melt-blow spinning box, a dosing pump and a filter are connected together and arranged above the round roller net forming machine; the melt-blow spinning box is connected with a plastic extruding machine; a wind heater is arranged on a side part of the round roller net forming machine; an induced draft fan and a blower are arranged on a side part of the wind heater; the wind heater is communicated with the centrifugal induced draft fan and the blower through pipelines; a dot hot-rolling roller and a dividing and cutting machine are arranged on a side part of the main frame; a spinneret and a spinning micropore are arranged below the melt-blow spinning box; and the micropore diameter ranges from 0.3 mm to 0.4 mm. In the invention, through the technical improvement on key process equipment, such as melt-blow, filling, sewing and the like, the high-performance sound-absorption and thermal-insulation material production line is built, and the procedures of product melt-blow, filling and sewing are accomplished in the same production line.
Owner:亿得宝科技发展有限公司

Method for reducing emission of nitrous oxide in soil of camellia oleifera forest by utilizing bamboo reed charcoal

The invention discloses a method for reducing the emission of nitrous oxide in the soil of a camellia oleifera forest by utilizing bamboo reed biochar, belonging to the field of emission reduction ofgreenhouse gas. The method comprises the following specific steps: step 1, preparation of a raw material: harvesting mature bamboo reeds, cutting the stems of the mature bamboo reeds into bamboo reedpieces with lengths in a range of 1-3 cm, drying the bamboo reed pieces in the air for 1 day, and drying the bamboo reed pieces in a drying oven for a plurality of hours; step 2, carbonization of thebamboo reed pieces: transferring the bamboo reed pieces into a muffle furnace, carrying out heating to a carbonizing temperature in an inert gas atmosphere, keeping the carbonized bamboo reed pieces at a constant temperature for a plurality of hours, and performing natural cooling to room temperature to obtain the bamboo reed biochar; step 3, treatment of the bamboo reed biochar: grinding and sieving the bamboo reed biochar, taking bamboo reed biochar with fineness of 80 to 40 meshes, and treating the bamboo reed biochar with 200 ml of a hydrogen chloride solution with a concentration of 1 mol / L for 10 hours to remove ash in the bamboo reed biochar; step 4, biochar activation: activating the biochar by adopting a KOH method, wherein the BET specific surface area of the activated biochar isnot less than 1200 m<2> / g; and step 5, biochar-soil mixing: mixing the bamboo reed biochar with soil according to a ratio of 1%-5%, adding water after uniform mixing, and enabling the water content of the soil to reach 60% or above.
Owner:ANHUI SCI & TECH UNIV

Spherical light kaolin ceramsite with air purification function and through holes

The invention discloses spherical light kaolin ceramsite with an air purification function and through holes. The technical scheme mainly includes that ingredients for the spherical light kaolin ceramsite include attapulgite pottery clay powder with an air purification function, kaolin, activated argil waste residues, white carbon black, activated aluminum oxide, sodium aluminate, sodium dodecyl sulfate, kaolin photocatalyst spray liquid capable of being scrubbed and the like; the ingredients are subjected to stirring, extrusion granulation, drying, calcination, heat-insulation treatment, sieving, soaking, drying, sieving and hermetic packaging to obtain the spherical light kaolin ceramsite with the air purification function and the through holes. The spherical light kaolin ceramsite with the air purification function and the through holes has the advantages of large specific surface area, low stacking density, high moisture absorption, excellent adsorption performance, good lightweight strength and micropore and macropore integration. Besides, the spherical light kaolin ceramsite is suitable to be arranged in indoor environments, furniture and cupboards, vehicles, aircrafts, ships or other buildings, pollutants such as formaldehyde, ammonia, benzene and TVOC (total volatile organic compounds) can be adsorbed and degraded by the spherical light kaolin ceramsite, and accordingly the purpose of purifying air can be achieved.
Owner:甘肃华晨生态治理有限公司
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