93results about How to "Great industrial application value" patented technology

The invention discloses a high-speed continuous photocuring type 3D printing device and a working method thereof. The 3D printing device comprises a machine case body which is divided into an upper cavity and a lower cavity by a middle partition board, wherein an image forming module is arranged in the lower cavity, a window box and an oxygen supply cooling module are arranged in the upper cavity and are combined to be fixedly mounted on the middle partition board, the oxygen supply cooling module is arranged right below the window box, and the image forming module I is arranged right below the window box; a printing platform is arranged right above the window box and is mounted on a Z-direction worktable; and the window box is connected with a raw material feeding unit. The 3D printing device is integrated with the advantages of a compound oxygen-rich film, oxygen supply cooling and liquid surface auxiliary pressurization of the window box, so that the low-cost and efficient continuous printing of large-sized products with arbitrary shapes is realized, the range of applicable materials is wide, the printed products are high in precision and quality and good in uniformity, and the process is stable and reliable. An industrial-grade solution is provided for the high-speed continuous photocuring type 3D printing.

The invention discloses a ruthenium complex compound ligand,fixed-carrying ruthenium complex compound catalyst and preparing method and utility, wherein the structural formula of ruthenium complex compound ligand I and II is displayed in the graph I and II; the structural formula of fixed-carrying ruthenium complex compound catalyst IV is as displayed in the right graph IVa-IVb.

The invention discloses a metal complex ligand, a metal complex, a preparation method and application thereof. Structural formulas of the metal (M) complex ligand Ia-Ic and the metal complex IIa-IIc thereof are shown. The metal complex has the advantages of higher catalytic activity, diversity of structures and physical properties and the like, and provides diverse optimal selection to catalytic application of various raw materials. The invention also discloses various novel functional polymer materials generated by ring-opening metathesis polymerization (ROMP) of different types of small molecular cycloolefines and application thereof, and structures of the materials are shown above.

The invention is a Ti-containing molecular sieve, namely TS-1 molecular sieve preparing method, belonging to inorganic chemical synthesis technical field. Multiple Si-Al molecular sieves have been successfully synthesized by the existing dry glue process, such as ZSM-5, FER, MOR, CHA, ZSM-48 and other zeolite molecular sieves, and Ti-Beta and Ti-MWW molecular sieves. And the preparing method synthesizes TS-1 molecular sieve by dry glue process, firstly hydrolyzing TBOT in a template TPAOH, then adding in inorganic silicon sources to form uniform gel, heating and evaporating the gel to dryness and obtaining dry glue, and finally transferring the dry glue into a crystallizing kettle with water jacket isolation layer for crystallization, and obtaining the TS-1 molecular sieve by routine filtering, washing, drying and baking processes. And the TS-1 molecular sieve product has high activity and high yield.

The invention discloses a forming window for high-speed continuous photocuring 3D printing. The forming window applied to a photocuring 3D printer comprises a window box and an oxygen supply cooling module. The photocuring 3D printer is divided into an upper cavity and a lower cavity through a middle partition. The window box and the oxygen supply cooling module are arranged in the upper cavity of the case of the photocuring 3D printer. The window box and the oxygen supply cooling module are fixedly mounted on the middle partition in a combined manner. Two ends of an oxygen supply cooling chamber are respectively connected with a cooling gas inlet pipeline and a cooling gas outlet pipeline, and the oxygen supply cooling chamber, the o cooling gas inlet pipeline and the cooling gas outlet pipeline form the oxygen supply cooling module. The forming window has the advantages that low-cost and efficient continuous printing of large-size optional-shape parts can be achieved, the forming window is wide in applicable materials, the precision and quality of the printed parts are high, the printed parts are good in consistency, and process stability and reliability are achieved. In addition, the forming window is high in industrial application value and applicable to a desktop-level 3D printer and industrial 3D printing.

The invention discloses a continuous surface exposure ceramic 3D printing device and a working method thereof. Before printing, a raw material feeding unit pours ceramic slurry into a window box; after a water pump pulls out the ceramic slurry in a first slurry tank, the ceramic slurry is conveyed into a second slurry tank through a second slurry conveying pipeline, the ceramic slurry in the second slurry tank flows into aliquidstorage tank of the window box through the second slurry conveying pipeline, the ceramic slurry in the liquid storage tank of the window box flows into the first slurrytank through the first slurry conveying pipeline, and the circulation flow of ceramic slurry in the first slurry tank, the liquid storage tank, and the second slurry tank is realized throughthe waterpump; and the continuous surface exposure technology is adopted, continuous molding of ceramic 3D printing is realized, and continuous printing is realized.

The invention relates to a method for comprehensive treatment and utilization of high-zinc-content waste acid. By reasonably designing process steps and reaction agents of the method for comprehensive treatment and utilization of the high-zinc-content waste acid, effective separation, recycling and reutilization of iron and zinc are achieved, iron and zinc resource waste is avoided, a by-product industrial calcium chloride solution having a wide industrial application value and meeting the national quality standard is also obtained, comprehensive treatment and utilization of the high-zinc-content waste acid is successfully achieved, and the method is simple in process, lower in cost, green and environmentally friendly.

The invention relates to a method for batch preparation of boron nitride nanotubes. The method comprises the steps of sufficiently mixing a boron source, a transition metal compound and alkaline-earth metal compounds; heating the mixture to 1000-1100 DEG C under the protection of nitrogen or argon; stopping supplying a protective gas, beginning supplying a mixture gas of the nitrogen and the argon, reacting and continuing to heat to 1200-1400 DEG C, keeping the temperature for 0.5-4 hours, stopping the supply of the gas after the heat preservation, closing the gas inlet and the gas outlet and decreasing the temperature to the room temperature so as to obtain white rough products, heating the rough products in the air to 600 DEG C and subsequently pickling and drying. The diameter of the prepared boron nitride nanotube is 50-300nm, and the length can be more than 100 microns. By introducing an alkaline-earth metal as a catalyst, a great quantity of boron nitride nanotubes can grow at a lower temperature; the cost is lower, the material resource is wide, the preparation process is simple, and the batch production can be realized easily.

The invention discloses a preparation method of a sulfone compound. The method concretely comprises the following steps of (a) dispersing benzenesulfonyl hydrazide of a structure (I) into a cyclane solvent of a structure (II) (The structure (I) and the structure (II) are shown in the description); (b) adding catalysts of ferric salts and oxidants of peroxides into the mixture obtained in the step (a); then, performing reaction for 6 to 12h at the temperature being 90 to 130 DEG C to obtain the sulfone compound of a structure (III) (the structure (III) is shown in the description); R is aryl or substitutional aryl; the n is 1, 2, 3 or 4. The reaction conditions related by the synthesis method are mild; the cheap and easy-to-obtain ferric salts and peroxides are respectively used as catalysts and oxidants. The preparation method provided by the invention has the advantages that the cost is low; the operation is simple; mass production can be easily realized. Experiment results show that the yield of the obtained sulfone compound can reach a value as high as 80 percent.

The invention belongs to the technical field of ozone sterilization and discloses a visible light-based hydroxyl radical generator and a trapping method. The visible light-based hydroxyl radical generator comprises a testing box, an ozone generator, an ozone online monitor, a light source, a culture dish and a fan, and is characterized in that: the ozone generator, the light source, the culture dish and the fan are respectively fixed in the testing box; the light source is fixed above the culture dish; the fan is fixedly arranged in the testing box and opposite to the culture dish; the ozone online monitor is positioned outside the testing box; and a probe of the ozone online monitor is positioned in the testing box. Under the condition of visible light, ozone is photolyzed to generate hydroxyl radical, and the generated hydroxyl radical is subjected to spin trapping and ESR detection, and the hydroxyl radical generated in the ozone photolyzing process can be accurately detected, and can be analyzed by combining the ESR spectrum.

The invention relates to an ion exchange polymer microsphere and a synthesis method thereof. The microsphere has a micron size, is internally composed of a hydrophobic polymer, and has a solid and compact structure; and the outer part is composed of a charged hydrophilic polymer and has a nano-porous structure. By changing the types of the hydrophobic polymer and the charged hydrophilic polymer, the chemical components and the surface appearance of the microspheres can be regulated and controlled. The microspheres have uniform size and morphology, the preparation method is simple, large-scale production is easy, and the microspheres have wide industrial application value. The ion exchange polymer microsphere with the micro-nano hierarchical heterostructure has great value in adsorption and separation of various molecules, ions and particles, and is expected to be applied to the fields of medicine purification, food detection, environmental governance and the like.

The invention discloses a method for improving settling property of activated sludge. The method comprises steps as follows: wastewater containing the activated sludge is pretreated; activated sludge solids with good settling property are separated through gravity settling; the activated sludge with poor settling property is conveyed to an aeration tank for aeration treatment, and an oxygen bearing solid-liquid mixture is obtained; the oxygen bearing solid-liquid mixture is subjected to gravitational separation by a hydraulic cyclone, and coarse particle substances, a concentrated liquid and liquid-solid suspended matter are obtained; activated sludge with the improved settling property is obtained through gravity settling of the coarse particle substances and the concentrated liquid; the activated sludge with the improved settling property and the activated sludge solids with the good settling property are combined. According to the method, BOD (biochemical oxygen demand) load of the separated activated sludge with the poor settling property is improved by the aid of the aeration tank, meanwhile, excessive organic matter and nitrogen are consumed through aerobic bacteria, and the sludge is prevented from anaerobic fermentation; finally, colloidal components and tiny particles capable of causing membrane pollution and inducing scaling of a membrane air diffuser are removed through gravitational separation, and the settling property of the activated sludge is effectively improved; the process is simple, and the method has quite broad industrial application value.

The invention discloses a supported honeycomb catalyst, a preparation method thereof, and an application of the supported honeycomb catalyst in treatment of acrylonitrile-containing waste gas. The catalyst comprises a catalytic coating and a honeycomb carrier; the catalytic coating comprises an active component and a mesoporous metal oxide carrier; and the active component comprises an active metal element, and the active metal element is selected from at least one of Cu, Ag and Ce. The catalyst has very high catalytic activity and selectivity, and the catalyst is simple in preparation process, low in raw material price, basically free of byproducts, low in energy consumption and wide in industrial application value.

The invention discloses a fluoroisoquinolone compound and a preparation method thereof. The reaction mechanism of the method is characterized in that a compound I reacts with a fluorating agent under the catalysis of a catalyst to generate a ring closing effect in order to generate the compound II, and R in the formulas of the compound I and the compound II is a C1-C6 alkyl group, a C1-C6 alkyloxy group, an aryl group or a heteroaryl group. A high-efficiency multi-component catalyst system is adopted, so the selectivity of an intramolecular cyclization reaction is improved, and the yield of the target product is improved. The preparation method has the advantages of simple steps, simple operation, high production efficiency, mild environment conditions needed by the reaction, and wide industrial application values.

The invention discloses a scouring agent for a silk fabric and an application method of the scouring agent. The scouring agent is prepared from the following components in parts by weight: a liquid A, including 100 parts of potassium octyl diphenyl ether disulfonate, 20-40 parts of octadecyl alcohol polyoxyethylene ether, 8-12 parts of sodium diethylhexyl sulfosuccinate, 2-5 parts of a chelating dispersant and 4-6 parts of propargyl alcohol, and a liquid B, including 10 parts of papain and 80-110 parts of a buffering agent. The invention further provides an application method of the scouring agent for the silk fabric. The scouring agent is relatively low in reaction temperature, mild in pH and good in scouring effect. The scouring agent is capable of preventing the fabric from being damaged, and the fabric is capable of maintaining relatively good hand feeling and improving the commercial value of the silk fabric.

The invention discloses a method for producing GlcNAc salts by an enzymic method and purifying the GlcNAc salts, and belongs to the technical field of bioengineering. According to the method, N-acetyl-D-(+)-glucosamine is used as a raw material and is hydrolyzed by deacetylase to obtain GlcNAc and acetic acid; then, the GlcNAc salts are obtained through separation by eluting cation exchange columns by an acid solution; and meanwhile, a byproduct of sodium acetate is obtained through anion exchange recovery. The obtained GlcNAc salts are subjected to concentration, crystallization, decoloring and drying to obtain high-purity GlcNAc salt crystals. According to the method, a cyclic utilization process of enzymes, a cyclic recovery process of residue substrates and a recovery process of aceticacid are combined. The conversion rate of the N-acetyl-D-(+)-glucosamine and the total yield of the GlcNAc salt product are improved, and meanwhile, enzymes are cyclically utilized, so that the residue substrates circulate to be sufficiently converted, and the acetic acid is utilized as resources. Through operation conditions at the normal temperature, the resin loss rate is low; the generation quantity of hydrochloric acid waste liquid is very small; and the economic benefits of energy saving and consumption reduction and the effects of environment protection and safety are realized.

The invention provides a novel preparation method for trabectedin. According to the method, safracin B is used as a starting raw material and undergoes a series of reactions to synthesize trabectedin. The raw material used in the method is easily available; the method is few in synthesis steps; a highly toxic organotin reagent is not used in the method, so the method is safe and low in cost; and the method has good industrial application value.

The invention relates to a comprehensive utilization method for coal gangue waste combined with spent cathode carbon blocks in the aluminum electrolysis industry. The method comprises the following concrete steps: smashing coal gangue and the spent cathode carbon blocks into powder, drying, then burdening in a certain proportion, removing alkaline soluble impurities in a mixed material by using astrong alkali liquid, washing to be neutral with hot water, drying, then in an inert or reducing atmosphere, heating to 1400-1700 DEG C, carrying out heat preservation for a period of time, so that mixed powder containing silicon carbide is obtained, then oxidizing and combusting the powder in an oxidizing atmosphere for removing residual carbon powder, dispersing the obtained powder into hydrofluoric acid for removing residual silicon dioxide, cleaning, and drying, so that silicon carbide powder can be obtained. The obtained silicon carbide product is high in purity and small in particle sizeand has extremely high industrial application value; meanwhile, industrial solid wastes coal gangue and spent cathode carbon blocks are taken as raw materials, so that the method provided by the invention has positive significance in directions of reducing waste pollution, protecting the environment and recycling resources.