109 results about "Activated carbon" patented technology

The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.

A flexible electrode comprises an activated cotton textile composite comprising activated carbon fibers, nickel sulfide nanoparticles and graphene and a process for making the flexible electrode. The process may comprise preparing a cotton textile containing Ni(NO₃)₂. Then, the cotton textile containing Ni(NO₃)₂ may be heated at a first temperature to produce an activated cotton textile composite comprising activated carbon fibers, nickel nanoparticles and graphene. The activated cotton textile composite may be then treated with sulfur to produce an activated cotton textile composite comprising activated carbon fibers, nickel sulfide nanoparticles and graphene. The nickel sulfide particles may be NiS₂ nanoparticles in a form of nanobowls, and distributed on a surface and inside the activated carbon fibers. The activated carbon fibers and the nickel sulfide nanoparticles may be coated with graphene. Banana peels may be activated and treated with the similar processes to form electrodes for both supercapacitor and battery applications.

The invention belong the hygiene field, and especially relates to a graphene anti-PM2.5 mouth mask functional layer, a preparation method and applications in a filter sheet. The anti-PM2.5 mouth mask filter sheet functional layer is active carbon with addition of graphene. The mouth mask can absorb PM2.5 effectively, the adsorption capability is high, bacteria resistance and bacteriostasis are achieved, spinning is not need, and the preparation technology is simplified, which facilitates industrial production.

The invention discloses special slow release fertilizer for grapes. The fertilizer is prepared from, by weight, 100-120 parts of brewery wastewater, 50-80 parts of sugar refinery wastewater, 20-30 parts of vinasse, 80-90 parts of corncob powder, 50-60 parts of peanut hull powder, 30-40 parts of wheat bran, 60-90 parts of residues of oil manufacture, 50-60 parts of smooth vetches, 70-80 parts of sweet clovers, 60-80 parts of azoila imbricata, 5-8 parts of zeolite powder, 10-12 parts of activated carbon, 30-50 parts of horse manure, 20-40 parts of goat manure, 35-45 parts of chicken manure, 20-30 parts of silkworm excrement, 1.2-2 parts of superphosphate, 0.08-0.1 part of borax, 3-5 parts of complex enzyme preparations, 8-12 parts of complex fermentation microbial agent, 5-10 parts of nanocarbon, 30-40 parts of residues from a biogas digester, 20-30 parts of humate, 15-35 parts of roots of soybeans, 20-25 parts of dregs of a decoction, 16-25 parts of straw powder and the like. The invention further discloses a preparation method of the special slow release fertilizer for grapes.

The invention discloses a treatment method of carbon felt for vanadium batteries, which comprises the following steps: oxidizing and activating carbon felt in 60-100 DEG C sulfuric acid for 0.5-4 hours or oxidizing and activating carbon felt in 20-30 DEG C sulfuric acid for 12-48 hours, and washing with water to obtain the activated carbon felt. Compared with other sulfuric acid or nitric acid oxidization methods, the invention firstly uses an alkaline solution to soak and wash the hydrophobic oil adhesive substances influencing the oxidizing process on the carbon felt surface, and then carries out the sulfuric acid oxidizing treatment, thereby increasing the oxo groups and other hydrophilic groups on the carbon felt molecules and enhancing the hydrophilicity and electrochemically active ion adsorption capacity of the carbon felt. The invention has the advantages of short treatment time and favorable carbon felt activation effect, and enhances the electrochemical activity of the carbon felt and the generation current value of the carbon felt as the vanadium battery electrode.

The invention provides a simple method for extracting natural taurine from abalone viscera. The invention is characterized by comprising the following steps: raw material pretreatment: adding 2 times of weight-to-volume ratio of water into abalone viscera, boiling at high temperature, and collecting the soup; activated carbon treatment: passing the soup through an activated carbon column at room temperature to obtain an effluent liquid; removing impurities with ethanol, and centrifuging to obtain a precipitate and a supernatant; concentrating the supernatant to obtain a concentrated solution; adding anhydrous ethanol into the concentrated solution, standing at 4 DEG C, centrifuging to obtain a precipitate, dissolving the precipitate in hot water, adding activated carbon, stirring, and carrying out vacuum filtration to remove the activated carbon, thereby obtaining a filtrate; crystallizing to obtain a taurine crystal; and carrying out recrystallization one or more times as required. The invention has the advantages of simple technique, low extraction cost, high extraction rate, energy saving and environmental protection. The method provided by the invention can effectively utilize abalone processing byproducts and enhance the utilization ratio of ocean resources. The ethanol used in the method can be recycled, thereby being beneficial to industrialized production.

The invention relates to a method for removing bromate in water through oxidation reduction and a system thereof. The method comprises the following steps: firstly, controlling the dissolved oxygen concentration in the water at a lower level through the nitrification of ammonia salt and microbes on the active carbon; secondly, removing the bromate in the water through the reducibility of ferrous sulfate; and finally, removing excessive ferric ions in the water through a filtering unit. The system comprises a pretreatment working section for controlling the dissolved oxygen in the water, an oxidation reduction working section for removing the bromate and a filtering treatment working section for removing the excessive ferric ions, wherein the pretreatment working section is connected with the oxidation reduction working section, and the oxidation reduction working section is connected with the filtering treatment working section. The method can effectively remove the bromate in the water with a bromate removal rate of above 60 percent. The system has convenient operation and low running cost, can also be integrated with other technologies, and have very high practicability.

A decorative wall board with an air purification function comprises an anti-bacterial non-woven fabric. An activated carbon fiber layer, an anion air purification layer, a waterproof breathable membrane and a bamboo charcoal wall board body are sequentially bonded on the anti-bacterial non-woven fabric in a hot-pressing mode, and according to the anion air purification layer, by weight, 4 parts of tourmaline powder, 2 parts of lanthanide series rare earth compound salt, 2 parts of nanometer titanium dioxide, 3 parts of activated carbon powder and 0.5 part of nano silver are loaded on polyester fiber. According to the decorative wall board with the air purification function, a traditional anion adding material is utilized, and the activated charcoal powder and the small amount of nanometer silver are added, so that release of anions is effectively promoted, and meanwhile the effects of sterilization and disinfection can further be achieved.

The invention discloses a method for preparing active carbon from biomass, and active carbon prepared by using the method. According to the method, the active carbon with an ultra-high specific surface area is prepared through baking, breaking, rapid stirring and chelating of an appropriate proportion of an activating agent, high-temperature pyrolysis and activation, acid washing and other steps. Compared to active carbon in the prior art, the active carbon of the invention has the advantages of usage of widely available and cheap raw materials, reutilization of the waste, rich pores and ultra large specific surface area, and has important application value in the fields of electrochemistry and pollutant adsorption. The method is simple in steps and suitable for industrial mass production.

The invention discloses porous modified bentonite with foaming effect. The porous modified bentonite is characterized by being prepared from the following raw materials by weight: 85 to 90 parts of calcium bentonite, 1 to 2 parts of octadecyl trimethyl ammonium chloride, 1 to 2 parts of ammonium bicarbonate, 3 to 5 parts of activated carbon powder, 2 to 3 parts of sodium silicate, 0.8 to 1.3 parts of aminopropyltriethoxysilane, 2 to 2.5 parts of carboxymethyl cellulose, 5 to 7 parts of phenolic resin powder, 2 to 3 parts of crushed phoenix tree leaves and 3 to 4 parts of modified diatomite. According to the invention, a formula is reasonable; since bentonite is modified by adding foaming matters like ammonium bicarbonate and activated carbon powder and surfactants like octadecyl trimethyl ammonium chloride, the modified bentonite has porosity, so good adsorption effect is obtained; moreover, through good dispersion of the modified bentonite and the crushed phoenix tree leaves, the porous modified bentonite in the invention is porous and uniform in dispersion and is applicable as a water purification adsorbent, etc.

The invention discloses an activated carbon-supported ruthenium-based ammonia synthetic catalyst and a preparation method thereof. The preparation method comprises the steps of with potassium ruthenate K2RuO4 H2O as a metallic ruthenium precursor, liquid ammonia and acetic acid as a stabilizer of ruthenium impregnation liquid, alkaline metal and alkaline-earth salts or bases as aids, and activatedcarbon as a supporter, performing impregnating to obtain the activated carbon-supported ruthenium-based ammonia synthetic catalyst. The activated carbon-supported ruthenium-based ammonia synthetic catalyst prepared herein is free of chlorine ions; active ingredients and the aids are distributed evenly on the catalyst; the prepared catalyst has stable performance, high activity, and good safety ofuse and is suitable for industrial production and application.

The invention discloses a ship waste gas desulfuration device and method. The ship waste gas desulfuration device comprises a primary impurity removal box and a secondary impurity removal box. A gas outlet end of the lower right side of the primary impurity removal box is connected with the secondary impurity removal box through a communicating pipe. An air inlet pipe is arranged on the upper leftside of the primary impurity removal box. A loading frame is arranged in the primary impurity removal box. Vent holes are evenly distributed in the middle of the bottom of the loading frame. An isolation net frame is horizontally placed in the primary impurity removal box. An activated carbon filling cavity is formed in the position, on the lower side of the isolation net plate, of the loading frame. A stone filling layer is paved on the upper side of the isolation net plate. The ship waste gas desulfuration device is simple and reasonable in structure; waste gas is preprocessed through the primary impurity removal box, and therefore solid impurities in the waste gas are removed; by sufficiently mixing alkali liquid and waste gas, the waste gas mixing effect is improved, and then it is ensured that waste gas is sufficiently purified.

The invention discloses an application of modified activated carbon in sewage treatment. The application is characterized in that the modified activated carbon is selected from activated carbon treated with hydrochloric acids and nitric acids of different concentrations, or treated at a high temperature. After the activated carbon used in the invention is treated with hydrochloric acids and nitric acids of different concentrations at different temperatures for a certain period of time, the adsorption capability of activated carbon powder is increased remarkably, and a good treatment effect on sewage containing rhodamine B serving as a dye is achieved particularly.

The invention discloses a preparation method of chemically-silvered active carbon as composite conductive filler. The preparation method is characterized by comprising the following process steps: a, pretreating the active carbon powder, namely performing alkaline cleaning on the active carbon powder by use of a NaOH solution so as to remove partial grey substances of the active carbon powder, washing by using water until the solution is neutral and drying firstly, and then performing oxidization treatment on the active carbon powder by use of a HNO3 solution, washing by using water until the solution is neutral and drying for later use; b, directly adding the modified active carbon powder to the prepared chemical silvering solution, heating until a certain temperature, reacting for a while and then carrying out suction filtration, water washing and drying; and c, sensitizing the reacted and dried active carbon by use of a stannous chloride solution and activating the active carbon by use of a silver nitrate solution, next, adding the active carbon to the chemical silvering solution, reacting for a while at a normal temperature and then carrying out suction filtration, water washing and drying. The chemically-silvered active carbon prepared by the method is low in weight and good in electrical conductivity; the chemically-silvered active carbon has a porous structure and can be grafted and mixed with resin favorably; due to silver deposition in the pores of the active carbon, the deficiency of the electrical conductivity of the active carbon due to the pores is compensated.

The invention discloses an alkali-added wet type oxidation catalytic desulfurization waste solution recycling method. The method comprises the following steps of: pressurizing a desulfurization solution into a filter via a pump, then entering a decoloring kettle, adding activated carbon to decolor the desulfurization solution, pressurizing into a sulfo-evaporation kettle through the pump via a decoloring storage tank, evaporating the solution to a certain concentration in the evaporation kettle, placing into the filter for filtering, then crystallizing filtrate, and finally separating in a centrifuge to obtain a Na2S2O3 product; and pressing the filtrate after centrifugation into a SCN-evaporation kettle through the pump via a storage kettle, evaporating the solution to a certain concentration in the evaporation kettle, placing into the filter for filtering, enabling the filtrate to enter the SCN-evaporation kettle for crystallization, then separating in the centrifuge to obtain a rough NaCNS product, performing two times of solution, decoloring, evaporation and crystallization on the rough product, and then separating in the centrifuge to obtain a final fine NaCNS product. According to the method disclosed by the invention, the mature and advanced filtration, concentration, crystallization and separation process flows are selected, and all process sections are mutually linked and supplement each other, so that the optimization of the whole process is achieved.

The invention discloses a preparation method of traditional Chinese medicine composition for purifying mandarin fish ponds. The method comprises steps as follows: baical skullcap roots, black nightshade herbs, fresh ginger, pomegranate rinds, red peony roots, cyrtomium rhizomes, perilla stems, peonies, arnebia roots, liquorice roots, argy wormwood leaves, stemona roots, acanthopanax root bark, tobacco leaves, pepper and ageratum are crushed, screened through a sieve of 60-70 meshes, soaked in water, heated and cooked until the moisture content is 20wt%-45wt%, hydroxyethyl cellulose is added, the mixture is stirred and granulated, and first preformed materials are obtained; alkaloid, Celastrus angulatus, Artemisia toosendanin, orange terpenes, pyrethrins and poly(aspartic acid) are evenly stirred, stir-fried shells, illite, illite smectite clay, diethylene glycol butyl acetate and microcrystalline wax are added and stirred, the mixture is atomized and sprayed onto surfaces of the first preformed materials, and second preformed materials are obtained; Celastrus angulatus missible oil, sodium carboxymethylcellulose, nacre mothers of pearls, activated carbon, an EM (effective microorganisms) liquid and water are evenly mixed, the mixture is atomized and sprayed onto surfaces of the second preformed materials, the second preformed materials are dried and screened, and the traditional Chinese medicine composition for purifying the mandarin fish ponds is obtained.

The invention relates to a preparation method of activated carbon tobacco sheet. Taking 800g of tobacco stems, activated carbon of 20-40g and tobacco sheet adhesive 5-10g, adding 2-4L of water, and stirring the components in the speed of 1000-2000 rpm for 30 minutes to mixing the components evenly. Tiling obtained thick slurry on a glass board according to the mode of 50ml/m2 inside a drying box with temperature of 30-50 C and 40-50 percents of relative humidity. And the activated carbon sheet can be obtained after drying and film-forming. The activated carbon can be obtained from apricot shell carbon, coconut shell and woodiness carbon and the like. The preparation method of the activated carbon tobacco sheet has the advantages of being capable of effectively improving combustion of tobaccos, enabling cut tobacco to be burnt more sufficiently, and significantly reducing content of tars and nicotine of a cigarette.

The invention relates to a fluorine-containing heavy-metal-ion-containing waste water processing agent and a fluorine-containing heavy-metal-ion-containing waste water processing method. The processing agent has a formula as follows: by weight, 8%-79% of one or several selected from iron powder, ferrous sulphate, sodium sulfite and ferrous chloride, 0.1%-6% of sodium borohydride and/or potassium borohydride, 0.2%-1% of biological flocculants, 0.1%-0.8% of non-ionic polyacrylamide, 10%-40% of active carbon, 5%-30% of calcium fluoride, and 5%-30% of calcium chloride. The total nickel content in fluorine-containing heavy-metal-ion-containing waste water after processing in electroplate and printing and dyeing industries can be lowered greatly, heavy metal discharge is reduced, and the total nickel content in fluorine-containing heavy-metal-ion-containing waste water after processing of the provided processing agent is less than 0.006mg/L.

The invention relates to an increasing insole with massage convex points. The increasing insole with the massage convex points comprises an insole body (1). The insole body (1) is made of silica gel. The increasing insole with the massage convex points is characterized in that the insole body (1) is provided with a plurality of vent holes (2), and the two side faces of each vent hole (2) are communicated; the upper surface of the insole body (1) is provided with the massage convex points (3); the insole body (1) comprises a pure cotton surface layer, an activated carbon middle layer and a PU bottom layer. Since the insole body is provided with the vent holes and the massage convex points, the foot of a user can feel comfortable, the breathable effect is good, no odor will be generated after the insole is used for a long time, and the increasing insole is not prone to slipping.

The invention relates to a preparation method of pearlescent anti-crease waterproof moisture-permeable polyurethane synthetic leather. The preparation method comprises the steps: weighing raw materials of a surface layer, mixing activated carbon, nitrocellulose, a dried color material, a pearl powder and colored plastic particles, then grinding, adding a proper amount of an acetic acid solution and polyurethane, adjusting the pH to be neutral, carrying out freeze drying, then grinding, adding the remaining raw materials, and stirring, to obtain a surface layer slurry; evenly coating release paper with the surface layer slurry, and drying to form a surface layer; weighing raw materials of a middle layer, mixing expanded graphite, quartz sand, magnesium oxide and aluminum hydroxide, then calcining the mixture, adding a stripping agent BYK-325, then treating for 1-2 h, cooling, then adding boric acid and wood powder, grinding, adding the remaining raw materials, and stirring to obtain a foaming layer slurry; mechanically foaming the prepared foaming layer slurry, then evenly coating the surface layer with the foamed foaming layer slurry, and drying; coating the foaming layer with a water-based polyurethane adhesive slurry, bonding with a base cloth layer, and then drying; and peeling off the release paper, trimming, rolling, and thus obtaining the synthetic leather finished product.

The invention relates to a preparation method of a high activity Pd/C catalyst, and the preparation method is mainly used for solving the problems of poor Pd dispersion in the catalyst, low microcrystal content and poor thermal stability of the prior art. The preparation method adopts activated carbon as a carrier and impregnates or sprays solution containing Pd on the activated carbon for preparing the Pd/C, wherein, two additives of A and B are added in the solution containing Pd, the additive A is selected from compounds with the above formula, R1 or R2 is selected from one of H, CH3, NH2, OH or COOH, n or m is selected from integrals of 0 to 5; the additive B is selected from compounds with the following formula: CH3(CH2)xO(CH2CH2O)yPO(OM)2(CH3(CH2)xO(CH2CH2O)y)2PO(OM), wherein, y is selected from the integrals of 1 to 5; x is selected from the integrals of 7 to 15; M is selected from Na or K; therefore, the technical proposal can better solve the problems and can be used in the industrial production of para-toluic acid catalyst by using 4-carboxy benzaldehyde.

The invention discloses a flue gas desulfurizing, denitrating and dedusting device. The device comprises a water purifying tank, a first-stage desulfurization tank, a second-stage desulfurization tankand a denitration tank which are sequentially arranged from left to right, the water purifying tank is externally connected with a flue gas inlet tube, an air suction pump is arranged at the outer end of the flue gas inlet tube, an air outlet nozzle is arranged at the inner end of the air inlet tube, the air outlet nozzle is mounted at the inner bottom of the water purifying tank, the first-stagedesulfurization tank is connected with the water purifying tank by a first air suction tube, a desulfurization activated carbon fiber catalyst bed is mounted in the first-stage desulfurization tank,a cavity is arranged in the desulfurization activated carbon fiber catalyst bed, and the other end of the first air suction tube is communicated with the cavity; the desulfurization activated carbon fiber catalyst bed is a honeycomb structure; and the surface of the desulfurization activated carbon fiber catalyst bed is provided with micro-pores. The device greatly improves the efficiency of desulfurization treatment of exhaust gas, greatly improves the efficiency of denitration catalytic treatment of the exhaust gas, and has high purification efficiency for the exhaust gas.