1065results about How to "Low cost of industrialization" patented technology

The invention belongs to the technical field of molecular sieve preparation, and particularly relates to an in-situ preparation method for a microporous-mesoporous molecular sieve containing noble metal. The in-situ preparation method comprises the steps as follows: adding a coupling pore-forming agent, a silicon source, an aluminum source or a titanium source, and an alkali source into a water solution of noble metal nano particles in sequence under the water bath condition; and ageing, drying, crystallizing, drying and carrying out high-temperature calcination to obtain the microporous-mesoporous molecular sieve containing the noble metal. The prepared microporous-mesoporous molecular sieve is provided with a hierarchical pore structure; the noble metal nano particles with high dispersity are covered in situ while a mesoporous structure is generated; and a synthetic method is convenient and simple, saves energy and reduces emission. A multifunctional catalyst prepared with the method integrates the advantages of the microporous channels of the molecular sieve, the transgranular meso pores and the intergranular meso pores of the molecular sieve and the noble metal nano particles, and is more suitable for catalytic reactions of sulfur-containing large molecules such as hydrogen desulfurization and the like.

The invention provides a completely new process route for synthesizing dexamethasone and series products thereof. The invention adopts 1, 4, 9, 16-tetraene-pregna-3, 20-diketone as the original material which is modified by 9, 11bits, 16, 17 bits and 21 bits so as to obtain the dexamethasone and the series products thereof such as dexamethasone acetate and dexamethasone sodium phosphate and the like. The process has the advantage that the invention adopts the existing intermediates of manufacturers as the original material; the route is simple; the materials are available; the use of expensive accessories is avoided; the yield and the cost are dramatically better than that of the prior methods used for synthesizing the dexamethasone and derivatives thereof; moreover, the adoption of the existing intermediates realizes the combined-line prodction of the betamethasone series products and the dexamethasone series products, thus greatly reducing the manufacturing cost and the industrial manufacturing condition.

The invention provides a completely new process route for synthesizing betamethasone and series products thereof. The invention adopts 1, 4, 9, 16-tetraene-pregna-3, 20-diketone as the original material which is modified by 9, 11 bits, 16, 17 bits and 21 bits so as to obtain the betamethasone and the series products thereof such as betamethasone acetate and betamethasone sodium phosphate and the like. The process has the advantage that the invention adopts the existing intermediates of manufacturers as the original material; the route is simple; the materials are available; the use of expensive accessories is avoided; the yield and the cost are dramatically better than that of the prior methods used for synthesizing the betamethasone and derivatives thereof; moreover, the adoption of the existing intermediates realizes the combined-line production of the betamethasone series products and dexamethasone series products, thus greatly reducing the manufacturing cost and the industrial manufacturing condition.

The invention provides a method for preparing water-based urethane acrylate pressure-sensitive adhesive. According to the method, water-based urethane is chemically modified by using acrylate, and the water-based urethane and the acrylate are combined with each other in a chemical bond form, so that the synthesized water-based urethane acrylate pressure-sensitive adhesive has excellent performance of the water-based urethane and the acrylate. According to the water-based urethane acrylate pressure-sensitive adhesive, water-based urethane acrylate copolymerization emulsion and tackifying resin are used as main components. The method comprises the following steps of: firstly, reacting a hydroxy monomer, a hydrophilic chain extender and polyisocyanate which are used as main raw materials to generate polyurethane prepolymer, and adding a hydroxy-containing acrylate monomer to obtain hydroxy-terminated polyurethane prepolymer; secondly, adding a salt-forming agent to neutralize the hydroxy-terminated polyurethane prepolymer, and dispersing in water to obtain water-based polyurethane emulsion; and finally, properly polymerizing the water-based polyurethane emulsion and the acrylate to obtain the water-based urethane acrylate copolymerization emulsion, and adding the tackifying resin of different mass fractions, thereby obtaining water-based urethane acrylate pressure-sensitive adhesive emulsion.

The invention discloses a method for quickly detecting the consistency of batteries through an AC impedance test, and the method comprises the following steps: (1), preparing ten or more batteries ofthe same type and same brand, and performing the parallel sample testing; (2), performing the AC impedance testing of the batteries which reach the specified voltage or capacity; (3), testing the DC internal resistance of the batteries through a DC discharge testing method; (4), finally performing the data processing according to the parallel sample data collection of the AC impedance of the batteries and the size calculation of the DC internal resistance, analyzing a coincidence pattern of Nyquist graphs, and performing the comprehensive evaluation of the consistency of the batteries. The method can obtain ohmic internal resistance, charge transfer internal resistance and diffusion internal resistance through the AC impedance test, wherein the ohmic internal resistance comprises the internal resistance of an electrode piece and made resistance caused by the technology. Through the comparison of the above internal resistance conditions, the method can obtain the statistical data of consistency for reference.

The invention discloses a special electric stain-resistant heat insulation coating. The special electric stain-resistant heat insulation coating comprises the following components in parts by weight: 15-50 parts of a film formation emulsion, 5-30 parts of nano oxide powder, 10-20 parts of heat reflection pigment, 5-25 parts of hollow ceramic microbeads, 8-15 parts of a filler, 5-15 parts of additives and a proper amount of deionized water. The purposes of resisting stains and insulating heat can be achieved by introducing components such as nano oxide powder into the heat insulation coating. The invention also discloses a preparation method of the stain-resistant heat insulation coating. The preparation method of the stain-resistant heat insulation coating comprises the following steps: adding deionized water, part of the additives, the nano oxide powder, the hollow ceramic microbeads, the heat reflection pigment and filler into a grinder for grinding to obtain slurry; transferring the prepared slurry into a dispersing machine, adding the film formation emulsion and the rest of additives into the slurry, stirring and dispersing the slurry, filtering the slurry by a screen to obtain the stain-resistant heat insulation coating. The preparation method of the stain-resistant heat insulation coating is simple in process, easy to implement and simple and convenient to operate.

The invention provides a method for treating high-concentration salty waste water and waste residue at low cost. The method is characterized by comprising a step 1 of mixing high-temperature smoke generated by burning of the waste residue with atomized waste water, and separating out water vapor smoke; a step 2 of separating out smoke through condensing of the water vapor smoke; a step 3 of subjecting the smoke to secondary burning, waste heat recovery, rapidly quenching treatment and purification treatment, and discharging the treated smoke. The method and the device thereof can simultaneously treat the waste residue and the waste water, and the treatment cost is low.

A method for continuous microwave expansion of cut tobacco comprises the following steps: impregnating the cut tobacco in an expanding agent; recycling the expanding agent in an impregnating device after impregnation; carrying out microwave expansion on the impregnated cut tobacco by a microwave dryer to obtain the expanded cut tobacco. The expanded cut tobacco comprises one or more than two components of ethanol with 4-12 carbon atoms, ketone with 4-12 carbon atoms, halogenether with 2-12 carbon atoms, alkane with 3-12 carbon atoms or alkane with 3-12 carbon atoms substituted by 2 halogen atoms. The filling value of the expanded cut tobacco reaches above 7.5, the cutting ratio is above 90%, the moisture content after expansion is 12-13%, the expansion of the cut tobacco is even without water damaged cut tobacco; the whole set of devices has low energy consumption and high automation, and continuous closed mass production can be carried out.

The invention relates to a preparation method of a steroid compound, in particular to the preparation for prednisolone and the derivative thereof, which takes 17-hydroxyl-1, 4, 9-triene- pregna-3, 20-diketone as the initiator and is improved by 9, 11th and 21st to obtain the prednisolone and the derivative thereof, such as prednisolone acetic ester, isoflupredone, and the like. The invention further provides the application of a compound (I) in the preparation of a compound (II). As the production process adopts the existing intermediate of the company as the initiator, the line is concise, the material is easy to obtain, expensive auxiliary materials are saved, and the yield and the cost are obviously superior to the historical synthetic method of the prednisolone and the derivative thereof; in addition, the adoption of the existing intermediate realizes the doubling production of the triamcinolone products and the prednisolone products, thus greatly reducing the production cost and industrial conditions. R1 is equal to H, F, Cl and Br; R2 is equal to H, OH and OCOR3, wherein, R3 is equal to the alkyl with less than 11carbon atoms.

The invention discloses a preparation method of cationic surfactant modified fly ash, which comprises the following steps of: firstly performing pretreatment and hydroxylation treatment on the surface of fly ash to obtain hydroxylated fly ash to obtain a grafting point; then modifying the fly ash by use of a coupling agent; and finally performing grafting reaction with a cationic surfactant polyacrylamide to obtain cationic surfactant modified fly ash. According to the preparation method disclosed by the invention, the polyacrylamide is grafted on the surface of the fly ash, and the adsorption property of the grafted fly ash is greatly changed; particularly the fly ash is applied to a cement-based composite material, and the fracture resistance of the cement-based composite material is obviously improved; and the preparation method disclosed by the invention has the advantages of low reaction temperature, mild conditions, simple after-treatment and low industrialization cost.

The invention disclosed a way to successively extract active ingredients from carpohole of north aweto. The invention adopts super critical CO2 to extract sterin substances, precipitating with alcohol to get nucleoside substances with cordycepin and Cordyceps polyose, separating with normal phase low pressure gel silica chromatography to get crude cordycipin, preparative reversed-phase high-performance liquid chromatography to get cordycepin crystal with high purity. The invention can not only successively extract sterin substances and Cordyceps polyose (CM-1) from the carpohole of north aweto, it can also get the cordycepin metamer; it is not applicable to small experiments but also applicable to industrial production. Since the producers can extract many substances by one treatment of carpohole, the invention can not only decrease the industrial cost but also make the biggest economic returns.

The invention discloses an application of a palladium-based bimetallic catalyst in the catalytic hydrogenolysis reaction of HBIW. The HBIW is an intermediate hexabenzylhexaazaisowurtzitane in the synthesis process of an energetic material CL-20. The palladium-based bimetallic catalyst is prepared through substituting precious metal with cheap transition metal and adopting oxide as a carrier, and has high catalytic reaction activity, high yield, high selectivity and high stability in the catalytic hydrogenolysis debenzylation reaction of the HBIW; and the palladium-based bimetallic catalyst has the advantages of easily available raw materials, low content of the precious metal palladium, low production cost, simple process, effective reduction of the industrial production cost, and very good application prospect.

The invention discloses a composite type nano flame-retardant coating comprising the following raw materials in parts by weight: 22-25 parts of titanium pigment, 10-25 parts of talc powder, 10-15 parts of calcium carbonate, 5-8 parts of mica powder, 5-8 parts of bentonite, 2-8 parts of kaolin, 7-11 parts of a thickening agent solution, 1.0-1.4 parts of a dispersant, 33-40 parts of polyacrylic ester emulsion of which the mass percent is 50%, 0.05-0.2 part of an anti-mildew agent, 0.05-0.2 part of a defoaming agent, 2.1-3.1 parts of propanediol, 1-3 parts of ethanediol, 7-11 parts of purified water, 0.02 part of an initiator, 0.6 part of a leveling agent, 25 parts of a modified ammonia type curing agent, and the balance of a nano flame-retardant composite.

The invention discloses a preparation method of modified silicon powder. The preparation method comprises the following steps of: firstly, performing hydroxylation treatment on the surface of silicon powder to obtain hydroxylated silicon powder; then modifying the hydroxylated silicon powder by using a coupling agent to obtain coupling agent modified silicon powder; and finally, performing graft polymerization on the coupling agent modified silicon powder and acrylamide through a graft polymerization reaction to obtain polyacrylamide grafted silicon powder (modified silicon powder). According to the modified silicon powder, the acrylamide is grafted on the surface of the silicon powder, so that the tenacity of a cement-based composite material is improved, the dosages of water and cement of the composite material are reduced, and the rupture strength is obviously improved and can completely meet requirements for the rupture strength of a high-performance cement-based composite material; and because the modified silicon powder has surface hydrophilic groups, the modified silicon powder has good dispersity, and the problem of agglomeration of a mineral admixture can be well solved. The preparation method is low in reaction temperature, mild in condition, simple in after-treatment and low in industrialization cost.

The invention discloses an efficient polycarboxylic acid water reducing agent with modified celluloses. The efficient polycarboxylic acid water reducing agent comprises, by weight, 240-250 parts of methyl-2-buten polyoxyethylene ether, 25.2-26.0 parts of acrylic acid, 1.6-1.65 parts of ammonium persulfate, 0.53-0.55 part of thioglycolic acid, 13-14 parts of lignin, an appropriate quantity of sodium hydroxide solution with the concentration of 10 wt%, an appropriate quantity of deionized water, 26-28 parts of graphene oxide, 5-7 parts of waste liquid from sugar factories, 7-8 parts of hydroxypropyl methyl celluloses, 2-3 parts of polyacrylamide, 3-4 parts of calcium chloride, 2-3 parts of triethanolamine, 5-6 parts of carbon black, 19-22 parts of building brick residues and 1-1.2 parts of silane coupling agents kh550. The efficient polycarboxylic acid water reducing agent has the advantages that components such as the hydroxypropyl methyl celluloses, the polyacrylamide and the carbon black are added into the efficient polycarboxylic acid water reducing agent in preparation procedures by the aid of a series of treatment processes, accordingly, the flowability and the frost resistance of concrete can be improved, and the dispersion resistance of products in water further can be improved.

The almoxicillin sodium and clavulanate potassium is widely and clinically used due to good curing effect and safety. The formulations of the almoxicillin sodium and clavulanate potassium are mainly oral preparations in different ratios; because of the advantages of quick response and the like, the injection preparation is deeply and clinically welcomed, but only the 5:1 injection preparation is available in the market at present; and because the clavulanate potassium ratio in the preparation is high, the penicillin anaphylaxis and the high-potassium disease are easily caused, and the preparation is relatively high in price. Because the preparation has the defects of higher process requirements, poor preparation stability, easy decoloring and degradation, and necessary storage and transport at a low temperature, the circulation and use of the medicaments are inconvenient. By changing the ratio of the almoxicillin sodium to the clavulanate potassium and improving the preparation process, the safety of the drugs is improved, the cost of the drugs is lowered and the stability of the drug preparations is improved under a condition of ensuring the curing effect; and simultaneously, because of using a special disposable injector, the conventional complex steps of dissolving and mixing are saved.

The invention discloses a gating system of a large-section iron casting for an medium pressure external cylinder in a steam turbine; the gating system comprises a weighing ladle, a sprue, a runner and an ingate, the runner consists of an upper runner and a lower runner, a refractory ceramic filter is arranged between the upper runner and the lower runner, the minimum sectional area ratio of the sprue, the runner, a transition sprue, a transition runner and the ingate is 1.2:1.34:1:1.07:1.24; the sprue, the upper runner and the lower runner are arranged at the middle part of the casting, and the ingate of an ingate is arranged at the inner wall of an axle hole of the casting; and the gating system of the structure mainly plays a role in buffering, decompressing and steady entry of melted iron, the molding sand in the scour cast is avoided, the casting is heated evenly, with the advantages of being not easy to be mingled with impurities, carry sand, produce air gaps and cracks.

The invention belongs to the field of electrocatalysis, and particularly relates to a one-dimensional porous low-platinum nanowire catalyst capable of being applied to oxygen reduction reactions in various energy conversion technologies, and a preparation method thereof. The preparation method comprises the following steps: dissolving a platinum metal salt and a salt of another one or more transition metals in a solvent, adding a surfactant and a reducing agent, and reacting at a certain temperature to prepare a platinum alloy nanowire with one-dimensional structural morphology; and then preparing the one-dimensional porous platinum-containing alloy nanowire by adopting an acid corrosion mode. The catalyst has a one-dimensional nanowire and a porous structure, has relatively high oxygen reduction catalytic activity and stability, and can be applied to oxygen reduction catalysts in various energy conversion devices. The method has the characteristics of high yield, simple synthesis process, high catalytic activity and the like, is suitable for large-scale industrial production, and has important significance for promoting the commercialization process of various energy conversion devices.

The invention provides a high-aluminum low-magnesium blast furnace iron-making raw material and a method for high-aluminum low-magnesium blast furnace iron-making by using the high-aluminum low-magnesium blast furnace iron-making raw material. The high-aluminum low-magnesium blast furnace iron-making raw material consists of high-aluminum low-magnesium sintered ore, pellet ore and raw ore; the blast furnace material is free of magnesium-containing ore; the high-aluminum low-magnesium sintered ore is prepared from a mixture of high-aluminum low-magnesium iron ore powder and auxiliary sintering materials in a sintering way; the pellet ore is ordinary pellet ore; the raw ore is high-grade iron ore concentrate. In the blast furnace iron-making process, the high-aluminum low-magnesium sintered ore and the ordinary pellet ore together with reasonably added raw ore are adopted, and appropriate blast furnace operation mechanisms are selected, so that the coal gas flow can be reasonably distributed in the blast furnace iron-making process, the blast furnace slag is good in property, the slag iron can be smoothly discharged, stable and smooth operation of a blast furnace is maintained, and the pig iron making cost is lowered.