750results about How to "Improve the activation effect" patented technology

The present invention relates to a method for extracting gold and silver from arsenical gold headings. It is characterized by that said method includes the following steps: (1), using activating agent to make activation; (2), first-stage reduction and calcinations; (3), second-stage oxidation and calcinations; (4), acid-pickling, using acid-pickling liquor to make extraction and electrodepositing cathode copper; (5), cyaniding acid-pickling dregs and recovering gold and silver; and (6), calcining smoke gas, making trentment and recovering arsenic and recovering sulfur.

The invention relates to a silicic acid mud interior wall decorating material and a preparation method thereof. The silicic acid mud interior wall decorating material mainly comprises diatomite, sepiolite, kaolin, sierozem, coarse whiting, wollastonite, white cement, silica sand, talcum powder, nanometer titanium dioxide, ethylene-vinyl acetate copolymer, cellulose ether, aluminium-magnesium silicate, easily dispersed fiber, inorganic pigments and has the functions of humidity control and air purification. The preparation method comprises the following steps of: firstly acidizing the diatomite, the sepiolite and the kaolin, removing harmful ingredients in the diatomite, the sepiolite and the kaolin, improving the activation property of the material, then filtering, washing, drying and crushing, and finally adding the diatomite, the sepiolite and the kaolin and the other components to a dry powder blender for uniformly stirring. When being used, water is added to powder, so that the powder is prepared into paste or emulsion; the silicic acid mud interior wall decorating material is suitable for roll coating, spray finishing, blade coating and the like in interior wall decoration and has the functions of indoor humidity adjustment, peculiar smell elimination, removal of harmful gases such as formaldehyde and toluene in air and lasting environmental protection and simultaneously has the characteristics of rich color, strong sense of texture and environmental friendliness.

The invention disclose a method for preparing pressed active carbon by using tobacco-stem, which comprises the following steps of: crashing the tobacco-stem to be 0.5-0.8mm, carrying out heating carbonization with the temperature-raising speed of 10 DEG C / min and under protection of nitrogen, raising the temperature to 300-400DEG C, and carrying out temperature preservation for 30-60min; mixing the tobacco-stem after carbonization with KOH evenly, raising the temperature to 400 DEG C with the temperature-raising speed of 5 DEG C / min and under the protection of nitrogen, carrying out temperature preservation for 30min, then raising the temperature to 700-800 DEG C with the temperature-raising speed of 10 DEG C / min and carrying out temperature preservation for 30-90min; washing activated samples by using clear water and obtaining powder-shaped active carbon; mixing the powder-shaped active carbon with a binder and a pore-creating activator; and carrying out press forming at pressure of 10-15 MPa, placing the mixture into a tube type resistance furnace, raising temperature to 800-850 DEG C with the temperature-raising speed of 5 DEG C / min and under the protection of nitrogen, carrying out temperature preservation for 30-60min, and obtaining the pressed active carbon after cooling.

The invention discloses an active carbon horizontal converter in the field of equipment producing active carbon, which comprises a driving mechanism (13), a feed mechanism (12), an outer barrel (4), a gas distributing pipe (1), an exhaust pipe (24), a flue (6), a steam generator (5), and a steam pipe (7), wherein an inner barrel (27) is arranged in the outer barrel (4) and is welded in the outer barrel (4) through a vertical plate (25);at least three independent material channels (18) are formed by the separation of the vertical plate (25) between the outer barrel (4) and the inner barrel (27) ; a shoveling plate is welded in each material channel; and one end of the gas distributing pipe (1) is provided with a gas distributing pipe cover (31), while the other end extends into the inner barrel (27). The active carbon horizontal converter not only can continuously produce the active carbon with a particle size range between 60 meshes and 12 millimeters, but also ensures the bidirectional heating of the inside and outside of materials, thereby having high utilization rate of heat energy and good activation effect, and only needing the activation time for 4 to 5 hours.

The invention relates to an alkali reductive water diaphragm-free electrolysis device, which belongs to the technical field of functional water electrolysis devices. The device comprises a water container, a pair of negative and positive electrodes placed in the water container, and a direct-current power supply electrically connected with the negative and positive electrodes; the positive electrode mainly comprises an active carbon electrode made of active carbon; and the negative electrode mainly comprises a metal electrode made of metal. The device can effectively obtain alkali reductive water of wide-range alkalinity (PH value from 7 to 13) and negative oxidation-reduction potential by adopting the negative and positive electrode group mainly comprising the active carbon electrode and the metal electrode, and can reduce the consumption of electrolysis power.

The invention discloses a start-up activation method for a hydrogenation cracking process, which comprises the following steps that: (1) a hydrogenation cracking pre-refining reactor and a hydrogenation cracking reactor are adopted in the hydrogenation cracking process, and catalysts are ex-situ presulfurizing catalysts; (2) the hydrogenation cracking pre-refining reactor and the hydrogenation cracking reactor are used for carrying out operation including gas displacement, device airtightness and the like; and (3) activation oil and hydrogen gas enter a gas-liquid separator after entering the hydrogenation cracking pre-refining reactor under the ex-situ presulfurizing catalyst activation condition, a liquid phase separated out from the gas-liquid separator is circulated back to the hydrogenation cracking pre-refining reactor, the closed loop circulation is carried out in the hydrogenation cracking pre-refining reactor, a gas phase separated out from the gas-liquid separator enters the hydrogenation cracking reactor, and the gas phase discharged from the hydrogenation cracking reactor is circulated back to the hydrogenation cracking pre-refining reactor. Compared with the prior art, the method has the advantages that the catalyst sulfurization effect is good, and the excellent reaction effect is realized.

The invention relates to the field of petroleum exploitation, and concretely relates to a petroleum endogenous microbe activating system, and a screening method and application thereof. The provided petroleum endogenous microbe activating system comprises an inorganic salt solution and an activator, wherein the activator comprises carbon source, phosphorus source and nitrogen source activators, the carbon source activator comprises molasses, the phosphorus source activator comprises K2HPO4, and the nitrogen source activator is one or more selected from NaNO3, NH4Cl or NH4NO3. The provided screening method for the petroleum endogenous microbe activating system comprises the following steps: (1) using the inorganic salt solution to stimulate stratum water, using a single-factor experiment to screen activator compositions and concentration scope; and (2) using Plackett-Burman, climbing experiments and CCD experiments to screen out all important compositions in the activator and the optimum concentration of all compositions. The application of the petroleum endogenous microbe activating system to fields of petroleum degradation and petroleum exploitation also is provided. The activating system is cheap and efficient, and the screening method is simple and rapid, and is capable of effectively improving the petroleum recovery ratio.

The invention discloses a chitosan oligosaccharide composite with cold-resistant function, which is aqueous solution, wherein the mass concentration of the chitosan oligosaccharide is 5%-10%, other auxiliary active constituents include at least one of phosphorus, potassium, calcium, boron, molybdenum, zinc, salicylic acid and betaine, and the content of the auxiliary active constituents is 0.5%-30% of the total mass concentration of the composite. Before the flowering period and the young fruit period of fruit trees, the time of young seedling of melon and fruit, vegetables and flowers, and the cold sensitive period of the winter growth of greenhouse crops, the composite is diluted by 1000 times with water to be sprayed on the leaves of the plants for 2-3 times; the chitosan oligosaccharide composite used in the invention has the function of promoting photosynthesis of the crops, improving activation performance of various enzymes and promoting metabolism of carbohydrates; and the chitosan oligosaccharide composite is used for inducing the crops to improve stress resistance and inducing the crops to improve cold resistance, so that the crops can get through the low-temperature cold harmful period, and regular development and yield of the crops are ensured.

The invention discloses a preparation method of porous graphene. The method comprises the steps of: (1) stripping graphite oxide in a water / ethanol mixed solution with pH of 9-10, adding a chemical foaming agent and mixing them uniformly, carrying out filtering and drying to obtain a solid mixture; (2) placing the mixture in a reducing atmosphere, and performing heating expansion reduction to obtain expanded graphene; (3) blending the expanded graphene with strong base, and conducting high temperature activation; and (4) washing the product with hydrochloric acid and deionized water, and performing drying so as to obtain porous grapheme. The porous graphene prepared by the method involved in the invention has a specific surface area up to 2075m<2> / g, a pore volume up to 1.8cm<3> / g, and an average pore size of 1-7nm. As a supercapacitor electrode material, the specific capacitance can reach 155F / g under a current density of 1Ag<-1>. As a porous graphene electrode, the specific capacitance can reach 84.4% along with the increase of current density from 0.2Ag<-1> to 20Ag<-1>. The porous graphene has high specific capacitance and cycle stability. The preparation method disclosed in the invention has the advantages of simple process, low cost, and easy scale production.

The invention relates to a non-sintered ceramic aggregate with stone coal vanadium extraction tailings as a main raw material and a preparation method thereof. The non-sintered ceramic aggregate comprises the following raw material components in percentage by weight: 45-60 percent of stone coal vanadium extraction tailings, 10-30 percent of fly ash, 7-15 percent of solid alkali exciter, 5-10 percent of cement, 5-10 percent of quick lime, 2-5 percent of gypsum and 5-15 percent of water. The preparation method comprises the following steps of: according to the raw materials and the contents thereof, uniformly mixing the stone coal vanadium extraction tailings and the solid alkali exciter and grinding to be below 0.074 mm to prepare a prefabricated material; adding the fly ash, the cement, the quick lime, the gypsum and the water into the prefabricated material and uniformly stirring to prepare a mixture; aging the mixture for 1-3 hours; pelletizing; aging for 3-7 days; holding in an autoclave; and autoclaving under the condition of 0.8-1.2 MPa for 6-10 hours. The non-sintered ceramic aggregate has the advantages of environmental friendliness, simple process, low energy consumption and high utilization rate of tailings; and a prepared non-sintered ceramic aggregate product has high strength and good thermal insulation performance.

The invention relates to a petroleum-hydrocarbon-contaminated soil repairing medicament and a use method and belongs to the technical field of soil environment repairing. The medicament is composed of sodium persulfate (Na2S2O8), zero-valent iron (Fe <0>) and calcium peroxide (CaO2), and the molar ratio of the Na2S2O8 to Fe <0> to CaO2 is 5: 2: 2. The Na2S2O8 is fed into a slurry system, the Fe <0> and the CaO2 are added for interphase activation, two types of free radicals with extremely high oxidability including a sulfate radical anion and a hydroxyl radical (.OH) can be obtained simultaneously for decomposing petroleum hydrocarbon in soil, wherein the formula of the sulfate radical anion can be found in the specification. According to use parameters of the repairing medicament, the feeding amounts of the sodium persulfate, the zero-valent iron and the calcium peroxide are 2 mmol / g, 0.8 mmol / g and 0.8mmol / g of soil correspondingly; the water soil ratio (milliliter: g) is 2.5: 1; a reaction is performed for 4-8 hours after the water and soil are uniformly mixed; and the water can be used repeatedly. Compared with a traditional chemical method, the range of acted organic pollutants is wider; the Fe <0> and the CaO2 are wide in resource, easy to obtain and low in cost; the two types of activating agents including the CaO2 and the Fe <0> are fed, the activating effect is better, and secondary pollution is avoided; and the reaction is mild, and safety is high.

The invention discloses a method of reverse water gas shift reaction for reverse water gas shift catalyst. The method comprises the following steps: firstly, catalyst activation: adopting 60 to 100 mesh nickel cerium catalyst as reverse water gas shift catalyst, performing activating treatment to the nickel cerium catalyst for 1 to 2 hours at 600 to 800 DEG C through high-purity carbon dioxide gas; and secondly, reverse water gas shift reaction: uniformly mixing the nickel cerium catalyst conducted to activating treatment and 60 to 100 mesh quartz sand according to the weight ratio of 1:(2.5 to 3), feeding reverse water gas feed gas, and performing catalytic reaction at 600 to 800 DEG C so as to obtain water gas. The method has the advantages that the nickel cerium catalyst is selected for the reverse water gas shift reaction, simultaneously the high-purity carbon dioxide gas is adopted for performing activation, the activation effect is good, the catalytic activity and the thermal stability are good during the catalytic reaction, and the cost is low.

The invention relates to a ferrum-cerium-titanium composite oxide catalyst. A chemical formula of the catalyst is FeCeaTiOx, wherein a is greater than 0 but less than or equal to 1.6. The invention further discloses a preparation method of the catalyst. The method comprises the following steps of (1) preparing and uniformly mixing an Fe source solution, a Ce source solution, and a Ti source solution to obtain a mixed solution, and (2) adding excessive urea precipitant in the mixed solution, precipitating Fe, Ce and Ti ions, conducting suction filtration on an obtained precipitation product, washing, drying, roasting, and obtaining the ferrum-cerium-titanium composite oxide catalyst. The low-temperature activity of the catalyst is improved obviously, the preparation method is simple and practicable, and the catalyst is used for a purification process of selective catalyctic reduction of nitric oxide (NH3-SCR).

The invention provides a preparation method for an activated carbon material. The preparation method comprises the following steps: 1) taking an activator aqueous solution, adding ion exchange resin and stirring and mixing the mixture for ion exchange; 2) washing, filtering and drying the obtained mixture to obtain the required resin; 3) optional one step: a, carbonizing the obtained resin in an N2 atmosphere; b, after pre-oxidizing the obtained resin in air, carbonizing the resin in the N2 atmosphere; and 4) washing and drying the obtained carbon material to obtain the required activated carbon material. The invention further discloses an activated carbon material by adopting the method and application thereof. According to the activated carbon material and the application thereof provided by the invention, the activator can be uniformly dispersed and the carbon material is activated by alkali metal ions at a high temperature. The prepared activated carbon material has good application potential in adsorbing carbon dioxide and phenol.

The invention discloses a two-step activation preparation method of activated carbon and application thereof in a supercapacitor. The method comprises the following steps that blind coal is smashed and sieved, and an additive and a binder are added to be stirred; the mixture is added into a muffle furnace to be carbonized and then, shifted into a tubular activating oven, activated gas is introduced to be activated; diluted hydrochloric acid is used for acid pickling, filtering is performed, then, distilled water is used for washing, and a KOH solution is used for dipping; one-time activated carbon is placed into the activating oven, and protective gas is introduced to be activated; diluted hydrochloric acid is used for acid pickling, filtering is performed, then, distilled water is used for washing till pH is 7, and then drying is performed; reactivated de-ashing activated carbon is uniformly mixed with ethylene and polytetrafluoroethylene after being ground, the mixture coats foamed nickel, and after drying is performed, tabletting is performed to prepare the supercapacitor. Blind coal is adopted as a raw material, reaction conditions are mild, on the basis of the conventional activated carbon production technology, reactivation and de-ashing are performed, the synthesis cost is greatly lowered, and the huge application and popularization potential is achieved in the field of activated carbon for the high-performance supercapacitor.

The invention discloses a method for preparing heavy metal adsorbent by carbonizing lakebed sludge, which comprises the steps of: washing the lakebed sludge with distilled water and drying, adding phosphoric acid solution (activator) and heating by means of water bath, drying, putting into a quartz tube of a high-temperature furnace, flowing with CO2 to carbonize by means of pyrolyzation to obtain adsorbent. The method takes the phosphoric acid with low price as chemical activator, thereby reducing cost; combines a physical activation method with a chemical activation method, thereby having good activation effect, improving the performance of adsorbent, having good absorption effect, and having iodine absorption value which is larger than 350mg / g; and completely uses organic matters in the lakebed sludge, thereby providing an approach for disposing the lakebed sludge by means of stabilization and resource utilization.

The invention discloses an active carbon activation furnace and an active carbon production method and relates to the field of active carbon production equipment and active carbon production technologies. The safety of an active carbon production process can be improved to a certain extent; the activation furnace works stably for a long term; and the quality and the productive capacity of produced active carbon are greatly improved. The active carbon activation furnace comprises a furnace body, a material entry device and a discharge mechanism, wherein the furnace body is internally provided with a burning passage communicated with the interior of the furnace body; air is admitted to the burning passage; the interior of the furnace body is in a negative pressure state; and air pressure in the burning passage is lower than that in the furnace body. The active carbon production method comprises the following steps: A: arranging the burning passage and material passages, B: admitting steam into the material passages, C: leading liberated gas in the material passages into the burning passage, D: heating materials in the material passages, and E: admitting flue gas generated by burning into a steam generator for heat exchange. The active carbon activation furnace and the active carbon production method are mainly used for active carbon production.

The invention discloses a method for producing active carbon, comprising the following steps: grinding corn cobs and cornstalks into flocculent corn cob materials and flocculent cornstalk materials bya grinder respectively, evenly mixing and then sending the materials into a particle forming machine to be extruded into particle materials; placing the particle materials into a carbonization kiln to be carbonized to obtain carbonized materials; directly sending the carbonized materials into an activation kiln to be activated without cooling to obtain activated materials; grinding and grading the activated materials to obtain the finished product of active carbon. Wood gas discharged from the flue of the carbonization kiln is introduced into a heating chamber on the lower part of an activation chamber to be ignited for heating the activation kiln; high temperature flue gases generated by combustion of the wood gas are introduced into the flue on the upper part of the activation chamber for carrying out secondary heating on the activation kiln; the flue gases discharged from the flue on the upper part of the activation chamber are introduced out to serve as the heat sources of a steamboiler, and the high temperature steam generated by the steam boiler enters the activation chamber to activate the carbonized materials. The active carbon produced by the method is good in quality and low in cost.

The invention discloses a watering-fertilizing integration water retention agent, a preparation method thereof and an application thereof. The water retention agent is prepared from a water soluble polymerization monomer, bagasse or a bagasse derivative, ground phosphate rock, a free radical polymerization initiator, and a crosslinking agent. The method of the invention, which treats bagasse as araw material, allows an agricultural waste resource to be effectively utilized, and the cheap and abundant ground phosphate rock is added in the method, so the cost of a product (the water retention agent) of the invention is low. In addition, the ground phosphate rock, which is also used as a raw material in the method of the invention, can be reacted with residual acidic monomers and can release water-soluble phosphor which can be absorbed by plants, so the poisoning effect brought by the residual acidic monomers is substantially reduced; and the ground phosphate rock can stably and durablymaintain and release nutrients needed by the growth of crops through a swelling effect under the effect of a sustained and controlled release system of the water-retaining agent, so the water retention agent allows soil to be more suitable for the plants to grow and the biological utilization degree of the nutrients in a fertilizer to be improved.

The invention relates to carbon preparation material and sulfuric active carbon based on the modification of coke and a preparation method thereof. The invention adopts the scheme that the preparation method comprises the following steps: dipping the coke in KOG solution for 1 to 24 hours at the temperature of 20 to 100 DEG C, wherein the mass ratio of KOH and the coke is 0.05 to 0.5:1; carrying out heat treatment to the coke after being dipped for 1 to 5 hours under the condition of inert atmosphere and 300 to 700 DEG C; then cooling the coke to the room temperature; and finally preparing the carbon preparation material after the coke is washed and dried. The carbon preparation material prepared can react for 1 to 5 hours under the conditions that the mass ratio of active gas flow rate and the carbon preparation material is 5 to 30:1 L / min / kg and the temperature is 350 to 850 DEG C, so as to prepare the sulfuric active carbon. The invention has the advantages of saved alkali consumption and energy consumption, shortened activating treatment time, high yield, and reduced corrosion resistant requirements of the material; the prepared carbon preparation material has high reaction activation; and the sulfuric active carbon prepared by the carbon preparation material has larger specific surface area and high sulphur content, and exits in a straight chain sulfuric shape as the subject of S2 and S6.

The invention provides light high-strength high mixing amount coal ash ceramsite and a preparation method thereof. The ceramsite comprises the following components in parts by mass: 70-95 parts of coal ash, 1-5 parts of a plasticizer, 0-5 parts of a foaming agent, 0-10 parts of a fluxing agent and 0-10 parts of a reinforcing agent. The coal ash ceramsite provided by the invention is light in weight and high in strength, the density grade is as high as 600-900kg / m<3>, the cylinder pressure intensity is as high as 7-15MPa, the water absorption rate is as low as 3-5%, and damage is not easily caused; the coal ash ceramsite can be used for preparing lightweight aggregate high-performance concrete, building wall plates, bridges and pipelines; the coal ash ceramsite is relatively lowly required in Lightweight Aggregates and Its Testing Methods Part I: Lightweight Aggregates, the strength requirement of high-strength ceramsite of which the density range is 600-900kg / m<3> is 4-6.5MPa, and the water absorption rate is generally less than 20%.

The invention discloses a monatomic noble metal catalyst, as well as a preparation method and application thereof in low-temperature catalytic-oxidizing formaldehyde. The monatomic noble metal catalyst comprises a carrier and noble metal dispersed in the surface of the carrier in a monatomic way, wherein the dispersity of the noble metal in the catalyst can reach to the monoatomic dispersion level, and the noble metal and the catalyst carrier have strong interaction; an oxidation-reduction ability, an oxygen adsorption and desorption performance, a formaldehyde activation capacity and other performances of the catalyst are remarkably improved; compared with a manganese dioxide material noble metal catalyst without noble metal, the purification performance on formaldehyde with different concentrations is remarkably improved. The preparation method is fast and simple in preparation process, cost-saving, and capable of realizing monoatomic dispersion of the noble metal in the carrier surface; according to the noble metal catalyst with monoatomic dispersion prepared by adopting the method, the dispersity of the noble metal is improved, the use cost of the noble metal is reduced, and meanwhile, the catalyst is ensured to have sufficient and high-efficient purification capacity on the gas-state formaldehyde.

The invention discloses a dark tea composition and an application in the weight losing field. The dark tea composition is prepared into tea products, capsules, tablets, granules and the like through Anhua black tea (Fuzhuan tea, Hua-zhuan tea, Qing-zhuan tea and Hei-zhuan tea; Huajuan dark tea such as Qianliang tea and Bailiang tea; Tianjian dark tea, Shengjian dark tea, Gongjian dark tea and the like) containing a Fuzhuan dark tea factor A and a Fuzhuan dark tea factor B as active components, gynostemma pentaphylla, rhizoma alismatis, radix ophiopogonis and other medicinal and dietary materials, and have quite remarkable and durable weight losing and lipid reducing functions on various obese people without rebound.

The invention discloses a preparing method and specific equipment of bamboo activated-carbon, which comprises the following steps: grinding; carbonizing continuously in the multi-pipe retort at 550-750 deg.c for 1-4 h; activating continuously in the retort at 800-950 deg.c for 48-72 h; pickling; bleaching; dehydrating; drying. The retort possesses stove base, furnace, several carbonizing pipes in the furnace vertically, feeder inlet on the top of retort, discharge device on the lower end, which is divided into preheating segment, carbonizing segment and cooling segment, wherein the retorting furnace contains furnace, heat-reserving chamber, chimney with furnace and heat-reserving chamber displaying left and right symmetrical structure; the furnace is separated into left and right half-furnaces by baffle; the heat-reserving chamber is divided into left and right two heat-reserving half-chamber correspondingly; the steam injecting pipe is set on the bottom of heat-reserving half-chamber; the vertical activating band is set in the furnace with several up-to-down carbonizing material channel and transverse gas flux to connect carbonizing material channel.

Use in cosmetic lotions a dispersion solution of super-fine noble metal particles obtained by burning a mixture gas of oxygen and hydrogen in high-pressure water and using the combustion gas to melt noble metal and thus causing super-fine noble metal particles to micro-disperse in water, wherein such production process is implemented using an apparatus for producing a cosmetic lotion that comprises a pressure-resistant container equipped with a high-pressure water tank, an injection nozzle for mixture gas of oxygen and hydrogen, a noble metal bar, an ignition device and a combustion chamber.

The present invention is slow released ClO2 air disinfectant, and belongs to the field of hygienic disease controlling and sterilizing technology. The slow released ClO2 air disinfectant consists of ClO2 solution in 1-3 weight portions, silicon gel as the carrier of ClO2 solution in 3 and activator in 0.005-0.1 weight portions. The slow released ClO2 air disinfectant has homogeneous and lasting release to maintain proper ClO2 concentration in the air and reach excellent air disinfecting effect. The used silicon gel may be recovered and reused after treatment.

The invention discloses a pair of antistatic butyronitrile gloves. The pair of butyronitrile gloves is mainly prepared from raw materials including butyronitrile latex, deionized water, potassium hydroxide, an accelerator, a vulcanizing agent, a catalyst, imidazolium salt type ionic liquid antistatic agents and the like. The problems that the domestic butyronitrile gloves for clean rooms have higher resistance and don't have an antistatic effect are solved; in the forming process of the gloves, the antistatic agents and butyronitrile latex have a cross-linking reaction, and the prepared butyronitrile gloves have the advantages of good antistatic effect and high cleanness and have the characteristics that the washability is good and the resistance value can be still maintained in the range from 106 omega to 108 omega after repeated ultra-clean washing. The invention further discloses a preparation method of the antistatic butyronitrile gloves. The butyronitrile gloves can be used in the environment of the clean rooms and plays a role in preventing static electricity and protecting operators and the environment of the clean rooms.

The invention discloses a soil curing agent, which belongs to the technical field of building materials. The soil curing agent comprises the following raw materials: common silicate cement, solid sulphur ash, an excitant, an early strength agent, silica fume, quick lime, polyacrylamide, water, polyvinyl butyral, calcium lignosulphonate, 3-amino propyl trialkoxysilane and polyvinylpyrrolidone. Theabove soil curing agent is prepared through the steps of carrying out material modification, mixing, vacuum preparation and the like. The soil curing agent has a simple preparation technology. When the soil curing agent is adopted, the solidification time of a roadbed can be obviously shortened, the compressive strength of the roadbed is improved, time limit for construction are shortened, and thesoil curing agent can be applied to the soil solidification of different soil textures.

The invention disclosed a catalyzing de-thiol method which is free of alkali. The method is meant for the cracking gasoline on fixed bed in the petrochemical industry. The main characteristic of the invention is that activator which is the mixture of alcohol, guanidines and de-thiol catalyst is added before the gasoline entered the thiol oxygenizing tower. The guanidines in the activator make the gasoline easily integrated with macromolecule thiol in the gasoline so it's easier to remove the thiol with the phthalocyanine catalyst. Since thedissolubility of phthalocyanine in quaternary ammonium base, the activating effect is even better. The de-thiol catalyst can make the thiol contact the catalyst more sufficiently; besides, the catalyst in the activator can supplement the catalyst loss on the fixed bed so as to remove the thiol in the gasoline completely. Compared to the present technologies which use alkali during the process, the invention has many advantages such as high effect of de-thiol, low cost, cut down the discharge of alkali waste liquid and environment-friendly.

The invention relates to corn stalk biochar, a method for removing sulfonamide antibiotics in water by using the corn stalk biochar and application of the corn stalk biochar. The corn stalk biochar is prepared by the following steps: firstly, drying and crushing; secondly, putting into a tubular atmosphere furnace, heating by adopting programs, and performing oxygen-free carbonization under the condition of 500 to 700DEG C for 120 to 180 minutes; thirdly, cooling in the furnace to room temperature, and grinding charcoal ash; fourthly, soaking with hydrochloric acid, filtering, washing, drying to constant weight, and sieving. The corn stalk biochar serving as an adsorbent is put into a water body containing the sulfonamide antibiotics for adsorbing to remove the sulfonamide antibiotics, so that the difficult problem that antibiotics in water are difficult to remove is solved. Meanwhile, the environment problem brought by straw burning is solved, wastes are changed into the valuables, the recycling of corn stalks is realized, and better economic benefits and social benefits are obtained.