63results about How to "Promote green production" patented technology

The invention discloses a preparation method of micro-spherical aerogel based on a super-hydrophobic surface, a product prepared by using the method and application of the method. The preparation method of the micro-spherical aerogel comprises the following steps: forming small spheres on the super-hydrophobic surface by using a silica gel aqueous solution; further gelling to form wet gel; carrying out a series of procedures of aging, solvent displacement, surface medication and drying. By adopting the preparation method, the preparation cost and period of the micro-spherical aerogel are lowered and shortened greatly, and the applicability of the aerogel is improved.

The invention provides a method for preparing a 13X molecular sieve through using high-alumina fly ash, and the 13X molecular sieve. The preparation method comprises the following steps: mixing the high-alumina fly ash with an alkali solution for a pre-desiliconization reaction, and filtering to obtain a desiliconized solution; mixing the desiliconized solution with white carbon black to obtain a modified desiliconized solution; mixing the modified desiliconized solution with an aluminum sauce to obtain a silicon and aluminum sol; and crystallizing the silicon and aluminum sol, filtering, washing, and drying to prepare the 13X molecular sieve. The invention also provides the 13X molecular sieve prepared through the preparation method.

The invention discloses an inorganic high performance fiber composite material, prepared from the following raw materials in parts by weight: 450-900 parts of cement with the mean grain size of 30-60 mu. m and strength grade not less than 42.5, 180-360 parts of active mineral admixture with the mean grain size of 0.1-60 mu. m, loss on ignition being less than or equal to 3.0 percent, and a 28-day activity index not lower than 90 percent, 70-120 parts of inert admixture with the mean grain size of 0.1-60 mu. m, 850-1250 parts of sand with the continuous grading grain size of 0.16-4.75mm, 25-32 parts of water reducer with a water reducing rate greater than 30 percent, 130-150 parts of water, and 50-120 parts of copper plating end hook-shape steel fiber with the diameter less than 0.20mm and length of 12-14mm. The composite material is relatively low in overall price, uniform in fiber distribution, high in compressive strength and flexural strength, good in tenacity and suitable for being popularized and used in the constructional engineering industry.

The invention provides a preparation method of methyltrialkoxysilane. The preparation method comprises the following steps of adding anhydrous alcohol into a reaction container A, arranging one end of a gas-guide tube under the liquid level in the reaction container A, introducing the other end of the gas-guide tube into a container B with methyltrichlorosilane, heating the anhydrous alcohol in the reaction container A to a temperature of 55-63 DEG C for a reaction, heating the methyltrichlorosilane in the container B to a temperature of 62-68 DEG C, feeding N2 into the container B, heating the mixed solution in the reaction container A to a temperature of 75-88 DEG C, carrying out a backflow thermal-insulation reaction process for 1-4h, then stopping heating, collecting the product, and feeding ammonia gas into the product to adjust product pH to 8-9 so that methyltrialkoxysilane is obtained. Dry neutral gas and an ammonia gas neutralizer are used under the conditions of normal pressure and low temperature. The preparation method utilizes simple technical equipment, is convenient for operation, and has a low cost and a high yield. Ammonium chloride obtained by neutralization of the preparation method can be used as fertilizer and is conducive to green production.

The invention belongs to the field of metallurgy, and relates to an iron-contained solid waste intelligent treatment system and a control method thereof. A flexible dosing process, a homogenizing process, a cold briquetting process, a rotary hearth furnace process and a time dividing output process are included; intelligent matching is carried out according to the iron, zinc and sulphur content conditions of iron-contained solid waste and states of all processes, the flexible dosing process is responsible for dosing, the homogenizing process, the cold briquetting process and the rotary hearth furnace process are responsible for treatment, and the time dividing output process is responsible for conveying materials to sintering, blast furnace and converter zones; and according to crude fuel information, solid waste generation information, solid waste product need information originally utilized by an iron and steel plant, the zinc load of the iron and steel plant is comprehensively forecasted, the supplying amount of high zinc-contained ore and high zinc-contained waste steel of the iron and steel plant is directed, the using amount of low-price high zinc-contained materials is increased, the sulphur content of solid waste product used by a converter is reduced, the converter desulfuration load is reduced, the using depth of iron-contained solid waste resources of the iron and steel plant is improved, the green production of the iron and steel industry is effectively pushed, and efficient and recycling circulated utilization of a iron-contained solid waste plant is achieved.

The invention provides an acrylic resin retanning agent, which is obtained by polymerization of the following raw materials in water: crylic acid or methacrylic acid; methacryloyloxyethyl trimethyl ammonium chloride; acetoacetate ethyl methacrylate; chain regulator; catalytic agent and initiator. The invention also provides a preparation method of the acrylic resin retanning agent. According to the method, polymerization of acrylic monomers can be initiated at low temperature, so that the stability of a reaction system in a feeding period is easy to control, the reaction is stable, the energyconsumption can be saved, and the green production is favored. The acrylic resin retanning agent provided by the invention has favorable filling performance and convergence performance, the compactibility of hide fiber can be improved, the color loss can be avoided, the absorption of dye and fatliquor is favored, the absorption rate is improved, the waste water emission is reduced, and the effects of dyeing and fatliquoring are improved.

The invention discloses a method for separating an acetone and methanol mixture, relating to the technical field of extraction and distillation. In the invention, a fifteen plate in an extractive rectifying tower with the theoretical tower number of 45 is used as a feeding plate, and a water solution of sodium chloride or potassium chloride is introduced by the connection of the feeding plate; when the reflow ratio of the tower top of the extractive rectifying tower is 4:1, a distillate with the temperature of 56-56.5DEG C, which is collected at the tower top, is acetone; a distillation tower is continuously heated; and a distillate with the temperature of over 56.5DEG C, which is collected at the tower top, is methanol. The method disclosed by the invention can be realized just by distillation-extraction and can be operated at normal temperature and normal pressure; an extracting agent is free from recovery; the method adopts simple equipment and a simple process, has favorable separation effect and is convenient to operate; the respectively-obtained acetone has the mass fraction being capable of reaching 99.5 percent, does not contain the methanol and only contains water with less than 5 percent; and the mass fraction of the obtained methanol can also reach 99.5 percent.

The invention discloses a curculio chinensis chevrolat attractant and an attractant attraction core making method. The attractant is composed of at least five of six substances including cis-3-hexene-1-alcohol, cis-2-hexenyl acetate, 3-heptanone, hexanal, nonanal and hexadecanoic acid according to a volume ratio of 0-10:0-40:0-10:0-20:0-30:0-40.The making method includes: dripping a dichloromethane solution containing the attractant into a latex plug, and naturally volatilizing to obtain the attractant, wherein the attractant can be volatilized and released slowly and stably. The attractant isnontoxic, harmless and free of environment pollution and has good attraction effect on curculio chinensis chevrolat.

The invention discloses a method for recovering copper ions in acidic copper printed circuit board waste etching liquor and application. Copper ions in the acidic copper printed circuit board waste etching liquor are recovered in a form of copper phenylalanine with high added economic value by a liquid deposition method, the recovered copper phenylalanine serving as a negative pole active materialis applied to a lithium ion battery, and the charge and discharge performance and cycling stability of the product are tested by a constant current charging/discharging method. According to the method, the copper ions in acidic copper printed circuit board waste etching liquor can be effectively recovered, waste materials are changed into things of value, the environmental pollution is reduced, green production of the battery industry and sustainable development of ecological environment can be facilitated, and the preparation process is simple, excellent in repeatability and favorable for batch production.

The invention relates to the technical field of drug preparation and discloses composite type activated carbon and the application thereof in purifying tacrolimus. Through fermentation broth filtration, drying, digestion, extraction and washing, composite type activated carbon decoloration and decontamination, and crystal purification, the problems of existing tacrolimus purifying methods that purification yield is low, time consumption is high, elution solvent consumption is high, pollution is serious, and industrialized production can not be achieved easily are solved. By the adoption of the composite type activated carbon and the application thereof in purifying tacrolimus, large-scale production can be achieved easily, solvent consumption is low, production cycle is short, an obtained tacrolimus crude product is high in purity and is white or off-white color powder, weight fraction is 85% or more, and HPLC normalized concentration is 90% or more.

The invention discloses an anti-settling aid, and a preparation method and application thereof. The preparation method comprises the following steps: generating a functional monomer B from sultone, afunctional monomer A and a small amount of polymerization inhibitor at a certain temperature; adding the obtained functional monomer B and neutral monomer acrylamide into a certain amount of sodium chloride solution, and carrying out a copolymerization reaction under the action of an initiator to obtain a zwitterionic copolymer; and carrying out co-heating on the zwitterionic copolymer and an aqueous cross-linking agent solution in a hydrochloric acid solution for a cross-linking reaction so as to obtain an amphoteric micro-cross-linked polymer. Based on reverse polyelectrolyte effect and micro-crosslinking effect, the amphoteric micro-crosslinked anti-settling aid applicable to wet-ground concrete waste slurry high-salt system is developed; and compared with the prior art, the amphotericmicro-crosslinked anti-settling aid has remarkable beneficial effects.

The invention discloses a hydroxytyrosol polymer having high antioxidation and thermal stability and a preparation method thereof. The method comprises the following steps: firstly, enzymatic polymerization: dissolving hydroxytyrosol in acetic acid-sodium acetate buffer, and fully mixing with a laccase solution to generate water bath reaction; secondly, precipitation and centrifugation: placing liquid obtained from enzymatic polymerization immediately in a high temperature condition to enable laccase to inactivate, cooling to enable the polymer to precipitate, and centrifuging again to obtain crude hydroxytyrosol polymer; thirdly, washing and vacuum drying: washing collected crude hydroxytyrosol polymer with a mixed organic solvent for a plurality of times, to remove unreacted hydroxytyrosol and laccase, and performing vacuum drying to remove the solvent to obtain the final hydroxyl group butyrol polymer. The stability of a product is good, the oxidation resistance is strong, and the production process is green.

The invention discloses bacillus amyloliquefaciens ZN-S2, and the preservation number of the bacillus amyloliquefaciens ZN-S2 is CGMCCNO:18962. The invention further provides application of the bacillus amyloliquefaciens ZN-S2 at the same time, wherein the bacillus amyloliquefaciens ZN-S2 is used for inhibiting the growth of plant pathogenic bacteria, so that the plant bacterial diseases are prevented and controlled.

The invention relates to a preparation method of ultrafine vanadium dioxide powder. The preparation method comprises steps as follows: Step 1, dissolving vanadyl sulfate trihydrate in distilled water, adding an alkaline solution, adjusting the PH of the solution to range from 6 to 7 to obtain a suspension, and performing suction filtration, cleaning and drying to obtain product precursor powder; Step 2, crushing silicon dioxide aerogel and screening out silicon dioxide aerogel powder by a screen; Step 3, mixing the product precursor powder obtained in Step 1 with the silicon dioxide aerogel powder obtained in Step 2 in the weight ratio being (1-10):1 to obtain mixed powder, Step 4, performing heat treatment on the mixed powder obtained in Step 3 under the protection of inertial gas and then cooling the mixed powder, wherein the heat treatment temperature is in a range of 600-1000 DEG C and the heat treatment time is in a range of 3-8 h; Step 5, screening the mixed powder cooled in Step 4 by a screen of 1000-3000 meshes to remove large-particle silicon dioxide aerogel powder.

The invention relates to high-strength antifriction aluminum alloy comprising the components of, by weight, 1.0%-9.0% of bismuth, 2.0%-8.0% of copper, 0.3%-1.7% of manganese, 0.2%-1.7% of silicon, 0.3%-2.2% of magnesium, 0-0.7% of impurities, and the balance aluminum. According to the high-strength antifriction aluminum alloy, bismuth, copper, manganese, silicon, magnesium and other elements are added, strength and antifriction performance of an aluminum substrate are improved through alloying, and the requirement of a high-pressure gear pump is fully met. The grain size grade index of the microstructure of the prepared aluminum alloy reaches 7-8 grade, the tensile strength can reach 450-470 Mpa, and the friction coefficient is smaller than 0.02. The mechanical property of the aluminum alloy material is improved, and meanwhile, good processability, low surface roughness and other advantages are achieved. Meanwhile, the components of the aluminum alloy do not contain heavy metal, harm to human bodies and the environment due to the fact that heavy metal, such as lead, is widely used in existing aluminum alloy materials is avoided, and important positive significance is achieved for facilitating green and environment-friendly production.

The invention provides a method for improving a compression forming rate of limestone mud cakes. The method comprises the following steps that the limestone mud cakes are airing dried until the moisture content is not more than 10 wt% and below; a digestion material is formed by stacking and digesting; the digested material is crushed and stirred to form a mixture material; and a binding agent water glass which accounts for 5 wt%-10 wt% of the digestion material is added during the crushing and stirring process; and the mixture material enters a ball pressing machine to be pressed and formed.According to the technical scheme, the method is simple and feasible, the ball forming rate of the limestone mud cakes is over 85% and above, each limestone mud cake freely drops from a two meter height to a cement terrace at one time, and no more than 5 blocks are broken after each limestone mud cake being crushed; the compression forming rate of the limestone mud cakes is effectively improved byadopting the method, and a daily amount of a limestone mud cake ball compression production line is 80 tons.