50results about How to "Penetration deep" patented technology

The invention relates to powder coating and particularly relates to powder coating for MDF transfer printing and an application method of the powder coating. The powder coating is prepared from the following raw materials in percentage by weight: 53-90% of resin, 0-6.7% of a curing agent, 0.1-0.5% of a curing accelerant, 3-25% of auxiliaries, 5-30% of filler and 0.8-25% of pigment. After the powder coating is used for transfer printing, the texture is clear, the penetration is deep, the third dimension is strong, the transfer printing paper can be easily uncovered, the thermal transfer printing product is durable in use, and the patterns are not dropped, cracked or faded; moreover, the thermal transfer printing only achieves a surface decoration effect without changing the characteristics of the original glossiness, the wear resistance, the weather resistance, the acid and alkali resistance, and the like of the product. The invention also provides an application method of the powder coating.

The invention relates to the field of new edible mushroom cultivation techniques, in particular to a method for shortening a cultivation period of needle mushroom during production. The method comprises the following steps of: with grains as a main raw material, preparing a culture matrix, wherein the grains are rich in nutrition, the culture matrix made of the grains is hardened so that inoculated strains can be easily dispersed and can penetrate into the culture matrix; inoculating by utilizing liquid strains, wherein the cultivation period of the liquid strains is short, the inoculation operation is convenient and fast; and carrying out shaking, clamping and other measures on the culture matrix in a bottle after inoculating so that the inoculated liquid strains are in full contact with the culture matrix in the bottle and cultivated hypha can fully grow in the bottle after 10-20 days. Through the embodiment of the invention, the whole period of the preparation of the mushroom culture matrix only need 25-27 days, but the whole period of the preparation of the mushroom culture matrix by the traditional method needs three months nearly, thus the production efficiency is largely improved; in addition, compared with the traditional method, the method has the advantages that the cultivated needle mushroom is two stubbles more than needle mushroom cultured by the traditional method and the utilization rate of the field is largely improved; and the method disclosed by the invention is more beneficial to industrial, intensive and extensive production of needle mushroom.

The invention discloses a denitration catalyst with improved low-temperature activity and a preparation method of the denitration catalyst. The preparation method comprises the steps as follows: (1) dissolving a titanium source precursor in acid to form a solution; (2) forming solutions from a manganese source precursor, an iron source precursor and a tungsten source precursor, and uniformly mixing the solutions with the solution in the step (1); (3) regulating pH of the evenly mixed solution obtained in the step (2) to 7-12, and performing precipitation and filtration; (4) adding deionized water to a filter cake obtained in the step (3), blending the mixture into slurry, and adding a rare earth source precursor, performing dry and roasting after uniform mixing, and grinding the mixture into powder; (5) mixing the powder obtained in the step (4) and a tungsten source precursor solution into slurry, stirring the slurry, adding a pore-forming agent, uniformly mixing the mixture, and performing drying and roasting to form the denitration catalyst. The denitration catalyst for improving low-temperature activity and the preparation method of the denitration catalyst are designed to overcome the defects of imbalanced low-temperature activity center and instable activity of the denitration catalyst in flue gas in the prior art.

The invention discloses a preparation method for a wet oxidation catalyst. The preparation method includes the following steps: (1) processing active carbon by adopting carbohydrate, and performing pulping; (2) dissolving a copper source precursor into a solution; (2) dissolving a cerium source precursor into a solution; (4) mixing materials prepared by the step (1), (2) and (3), adjusting pH values to form deposition, and performing filtering, washing and drying, and roasting in an inert gas environment so that a powder material can be formed; and (5) mixing the powder material of the step (4) with a manganese source precursor solution into slurry, and adding a pore forming agent after stirring, performing seal standing to form the mixture into a clover shape through extruding after secondary stirring, coating nanometer zirconia after drying, and performing roasting in an inert gas environment to form a wet oxidation catalyst. The prepared wet oxidation catalyst can be used for high concentration organic wastewater, and has characteristics of large specific surface areas, strong sulfur tolerance and stable catalytic activity, etc.

The invention discloses a honeycomb denitration catalyst with increased specific surface area and a preparation method. The preparation method comprises steps as follows: (1) beating active alumina; (2) dissolving a titanium source precursor; (3) dissolving a tungsten source precursor and mixing the dissolved tungsten source precursor with the materials in the steps (1) and (2); (4) adjusting pH of the material evenly mixed in the step (3) to 8-13, and performing precipitation, filtering and washing to obtain a filter cake; (5) adding water to the filter cake obtained in the step (4), mixing the filter cake into a slurry state, adding a vanadium source precursor solution, and performing mixing, drying and roasting to form powder; (6) mixing a solution formed by a molybdenum source precursor with the powder in the step (5) into a slurry, stirring the mixture, adding a pore-forming agent, performing secondary stirring, allowing the mixture to stand, squeezing the mixture into a honeycomb shape, performing drying, and coating the surface with nano-tungsten oxide for roasting to obtain the denitration catalyst. The prepared denitration catalyst has the advantages that the specific surface area can be increased, and non-uniform deposition of heavy metals in flue gas on the surface of the catalyst is prevented.

The invention discloses a preparation method for a high specific surface area wet oxidation catalyst. The preparation method includes the following steps: (1) processing active carbon by adopting carbohydrate, and performing pulping; (2) dissolving a copper source precursor into a solution; (3) mixing materials of (1) and (2), adjusting pH values to form deposition, and performing filtering and washing; (4) dissolving a nickel source precursor into a solution, fulling mixing with (3), performing drying, baking the mixture in an inert gas environment to form a powdered material; and (5) mixingthe powdered material of the step (4) with a cerium source precursor into slurry, adding a pore forming agent after stirring, performing seal standing and drying after secondary stirring, baking the mixture in the inert gas environment to form a wet oxidation catalyst. The prepared wet oxidation catalyst can be used for oil refining or ethylene waste lye treatment, and has large specific surface areas and high catalytic activity.

The invention discloses a vanadium-free denitration catalyst for reducing SO2 oxidization rate and a preparation method thereof. The preparation method comprises the following steps of: (1) dissolving a titanium source precursor into an acid to form a solution; (2) dissolving a rare earth precursor and a co-catalytic component precursor formed by one or two of a tungsten source precursor and a molybdenum source precursor to form a solution and uniformly mixing the solution with the solution in the step (1); (3) adjusting the pH value of the solution which is uniformly mixed in the step (2) to 7-12, and precipitating, filtering, washing, drying and the roasting the solution, and grinding the precipitate to powder; (4) mixing the powder in the step (3) with one of the tungsten source precursor solution or the molybdenum source precursor solution to slurry, stirring the mixture, adding a pore forming material, and uniformly mixing the mixture and drying the same; and (5) immersing the dried product in the step (4) in a silicon source precursor solution, and then drying and roasting the mixture to form the denitration catalyst. The vanadium-free denitration catalyst disclosed by the invention can overcome the defects that in the prior art, the active centre of the denitration catalyst in flue gas is unbalanced and the activity is unstable.

A preparation method of a honeycomb flue gas denitrification catalyst capable of reducing activation temperature and SO2 oxidation rate comprises the following steps: dissolving a titanium source precursor into acid to form a solution; dissolving a molybdenum source precursor and a phosphorus source precursor to form solutions; uniformly mixing the solutions, adjusting the pH value to 7-12, precipitating, filtering, then adding deionized water, a vanadium source precursor solution, uniformly mixing, directly drying, roasting, and grinding into powder; adding an extrusion aid, the solution formed by the molybdenum source precursor and a pore-forming agent into the powder, adding water while stirring, blending into a paste, then adding nanometer silicon dioxide, glass fiber and a bonding agent, uniformly mixing, extruding into a honeycomb blank by using an extruder, impregnating the dried blank into a silicon source precursor solution, and roasting to obtain a finished product. The invention aims to overcome the defects that in the prior art, the denitrification catalyst is unbalanced in active centers in flue gas, high in SO2 oxidation rate and poor in poisoning resistance.

An embodiment of the invention discloses a floor waterproof structure for building decoration. The floor waterproof structure for building decoration comprises floor tiles. Waterproof isolation mechanisms are installed on the bottom surfaces of the floor tiles, and water guiding supporting mechanisms are installed below the waterproof isolation mechanisms. Through raised head columns, water-proofcovers and correcting rings, the repeated operation of sealing and waterproofing the floor tiles is achieved, and meanwhile, the position correction operation of the floor tiles can be carried out toavoid the situation that the accumulated water cannot be discharged due to the fact that the floor tiles are tilted, during specific implementation, the floor tiles are clamped directly on the correcting rings to enable sealing rubber rings to seal the floor tiles, and at the moment, the raised head columns are embedded in through grooves in transition elastic pieces, so that the transition elastic pieces pull the floor tiles, even if gaps exist on the bottom of the floor, the situation that the accumulated water converges and cannot drained away due to the fact one side is tilted is not proneto occurring, and sealing rubber sleeves are pressed on the end parts of the water-proof covers to achieve further sealing, and the water-proof covers can play a role in isolation, so that the accumulated water does not penetrate deeper.

The invention discloses a denitration catalyst with resistance to sulfur dioxide oxidation and a preparation method of the denitration catalyst. The denitration catalyst contains 80%-98% by weight oftitanium dioxide, 1%-10% by weight of molybdenum trioxide, 0.3%-5% by weight of vanadium pentoxide and 0.1%-5% by weight of silicon dioxide. The preparation method comprises the following steps: (1) asolution I is formed from a titanium source precursor; (2) a solution II is formed from a molybdenum source precursor and mixed with the solution I in step (1); (3) pH of the solution obtained in step (2) is regulated, and the solution is filtered; (4) deionized water is added to a filter cake obtained in step (3), a vanadium source precursor solution is added, and the mixed solution is subjectedto mixed drying and roasting; (5) the molybdenum source precursor solution is mixed with powder in step (4), a pore-forming additive is added, and the mixture is dried; (6) a dried product in step (5) is dipped in a silicon source precursor solution and roasted. The prepared denitration catalyst has the advantages that vanadium oxide in flue gas can be prevented from non-uniform deposition on thesurface of the catalyst, high catalytic performance is guaranteed, and low sulfur dioxide/sulfur trioxide conversion rate is realized.

The invention relates-the technical field of building materials, and especially relates-an osmotic floor hardener and a preparation method thereof. The osmotic floor hardener comprises, by weight, 500-3000 parts of deionized water, 10-70 parts of lithium hydroxide, 1-50 parts of potassium hydroxide, 200-500 parts of silicic acid, 50-300 parts of methanesiliconic acid, 50-300 parts of a silane coupling agent, 5-50 parts of a silane polymer, 1-40 parts of a stabilizer and 1-7 parts of a surfactant. The hardener can penetrate the internal of the floor, seal the capillary tubes of concrete, improve the surface compactness of the concrete and enhance the impermeability, the strength and the hardness of the concrete, so the floor is non-dusty, waterproof and is impermeable, the surface of the floor is easy to clean, and the hardness is improved; and polishing of the floor significantly improves the glossiness.

The invention discloses a denitration catalyst with a low SO2/SO3 conversion rate and a preparation method of the denitration catalyst. The catalyst has a specific surface area of 40-120 m<2>/g and contains TiO2, WO3, V2O5 and SiO. The preparation method comprises the following steps: (1), forming a solution from a Ti source precursor; (2), forming a solution from a W source precursor, and mixingthe solution with the solution in (1); (3), adjusting pH of the solution obtained in (2) to be alkaline and performing precipitating; (4), adding water to filter cakes obtained in (3) to form slurry,adding a V source precursor solution, and performing drying and roasting to form powder; (5), mixing the W source precursor solution with the powder in (4) to form slurry, performing stirring, and adding a pore-forming aid for seal standing and drying; (6), immersing the dried product in (5) in a Si source precursor solution, and performing drying and roasting. The prepared denitration catalyst not only can resist uneven deposition of V oxide on the surface of flue gas, but also can ensure high catalyst performance and has low SO2/SO3 conversion rate.

The invention belongs to the technical field of ceramics and in particular relates to a high-permeability coloring environment-friendly ceramic product and a making method thereof. The ceramic productcomprises a blank body and a permeation layer, wherein the permeation layer is arranged on the surface of the blank body; the blank body comprises the following raw materials in parts by weight: 23-38 parts of kaolin, 16-24 parts of aluminum oxide and 6-10 parts of wollastonite; the blank body comprises the following raw materials in parts by weight: 42-55 parts of ceramic waste residue granules,5-14 parts of a fluxing agent, 20-25 parts of albite, 8-16 parts of aluminum oxide, 13-16 parts of zirconium oxide, 6-12 parts of ceramic permeation coloring aids and 10-18 parts of silicon oxide. The making method comprises the following steps: S1, preparing raw materials; S2, making the blank body; S3, making the permeation layer; S4, carrying out firing. The ceramic product provided by the invention has the advantages of being high in permeability and coloring performance.

The invention discloses a denitration catalyst for increasing a specific area and a preparation method. The method comprises the following steps: (1) mixing activated carbon with a sugar solution and pulping; (2) dissolving a titanium source precursor; (3) dissolving a tungsten source precursor and uniformly mixing the tungsten source precursor with the materials acquired in the steps (1) and (2); (4) uniformly mixing the material acquired in the step (3) and then adjusting the pH value of the solution to 8-13, precipitating, filtering and washing, thereby acquiring a filter cake; (5) adding water into the filter cake acquired in the step (4), preparing into pulp, adding a vanadium source precursor solution, mixing, drying and roasting under inert gas shielding, thereby forming powder; and (6) mixing the solution formed by a silicon source precursor with the powder acquired in the step (5) and forming slurry, adding a pore former, stirring for two times and then standing, drying and roasting under inert gas shielding, thereby acquiring the denitration catalyst. The product disclosed by the invention can increase the specific area of the catalyst and can reduce the conversion rate of SO2/SO3.

The invention discloses a denitration catalyst and a preparation method thereof. The method comprises steps are as follows: (1) a titanium source precursor is formed into a solution; (2) an assistant catalysis component precursor containing one or two of a tungsten source precursor and a molybdenum source precursor and a fluorine source precursor are formed into a solution, and the solution is mixed with the solution in the step (1) to form a mixed solution; (3) pH of the mixed solution is adjusted, precipitating, washing and filtering are performed, and a filter cake is obtained; (4) water is added to the obtained filter cake, a slurry I is formed, a vanadium source precursor solution is added, drying and roasting are performed after mixing, and the material is ground into powder; (5) the powder is mixed with one of the tungsten source precursor and the molybdenum source precursor, a slurry II is formed and stirred, a pore-forming agent is added, the mixture is evenly mixed, dried and roasted, and the denitration catalyst is formed. The prepared denitration catalyst can overcome the defects that the denitration catalyst in the prior art is uneven in activity center in flue gas and unstable in activity.