23results about How to "Raw materials are simple" patented technology

The invention relates to the technical field of oil field fracturing fluid, in particular to a preparation method of a high-temperature-resistant and anti-shearing organic boron-zirconium cross-linking agent. According to the technical scheme, the method comprises the following steps: 1) weighing deionized water and an alcohol stabilizer, adding the weighed deionized water and alcohol stabilizer into a reaction container, adding inorganic zirconium salt into the reaction container, and stirring until the inorganic zirconium salt is completely dissolved; 2) adding an organic ligand, stirring to dissolve the organic ligand, and continuously stirring for 0.5 hour; (3) adding a complexing agent, heating to 50-70 DEG C, stirring and keeping the temperature for 11-15 hours to obtain an organic zirconium cross-linking agent; and 4) adding the organic zirconium cross-linking agent obtained in the step 3) and a boron compound into a reaction container according to a ratio, and stirring at room temperature until the organic zirconium cross-linking agent and the boron compound are completely dissolved so as to obtain the organic boron zirconium cross-linking agent, and the preparation method has the beneficial effects that the prepared cross-linking agent has excellent temperature resistance and shear resistance, and is simple and convenient to operate, mild in condition, wide in raw material source and low in price.

The invention discloses a mesophase pitch carbon matrix modified high-thermal-conductivity C / SiC composite material and a preparation method thereof, the material is subjected to high-thermal-conductivity matrix modification through mesophase pitch melt impregnation, in-situ mesophase inversion and in-situ carbonization, and mesophase pitch carbon fibers are combined as a reinforcement, so that the high-thermal-conductivity C / SiC composite material is obtained. The mesophase pitch carbon matrix modified high-thermal-conductivity C / SiC composite material is obtained by densifying a silicon carbide matrix by adopting a polycarbosilane melt impregnation and in-situ cracking process, has excellent mechanical and high-thermal-conductivity properties, can be widely applied to the front edge, the end head and other parts of a hypersonic aircraft, and can effectively improve the use temperature and the service environment of the material. Meanwhile, the preparation process is simple, the equipment use requirement is low, and the material preparation process period and cost can be correspondingly reduced.

The invention discloses a method for preparing lithium carbonate by using a waste lithium iron phosphate positive electrode material, which comprises the following steps: pulverizing the waste lithium iron phosphate positive electrode material, sieving, fully mixing the pulverized waste lithium iron phosphate positive electrode material with concentrated sulfuric acid, and carrying out dump leaching for 6-12 hours; primary leaching: raw materials come from secondary leaching residues, acid is adjusted to the pH value of 1.5-2.0, sodium ferrate is added, stirring leaching is performed at the temperature of 60-70 DEG C, leaching liquid serves as secondary leaching liquid, and leaching residues are recycled to be used for preparing iron phosphate raw materials; and secondary leaching: the solution comes from the primary leaching solution, acid is consumed by using heap leaching raw materials, the end point PH is controlled to be 3.0-3.5, sodium ferrate is added, and stirring leaching is performed under the condition of 45-55 DEG C. No hazardous waste is generated in the whole process, leaching residues are used as raw materials for preparing iron phosphate, calcium carbonate can be recycled for acid adjustment, and harmless treatment is truly achieved.

The invention discloses a preparation method of a negundo chastetree fruit microcapsule and application of the negundo chastetree fruit microcapsule in mosquito-repellent finishing of fabrics. Vitex negundo essential oil is used as a core material, an emulsifier and a wall material are investigated, it is determined that Tween-80 is used as the emulsifier, gelatin and sodium alginate are used as the wall material, a complex coacervation method and calcium chloride cross-linking curing are adopted, and freeze drying is performed to obtain the Vitex negundo microcapsule. By optimizing the emulsifier addition amount, the total wall material concentration, the core-wall ratio and the like, the embedding rate of the prepared rhizoma polygonati microcapsule can reach 75% or above, the particle size is smaller than 2 microns, and the rhizoma polygonati microcapsule can be stably and uniformly dispersed in water. The negundo chastetree fruit microcapsule is prepared into a finishing liquid which is used for after-finishing of fabrics, can endow the fabrics with good mosquito repelling performance, and is fresh in smell and free of anaphylactic reaction.

The invention relates to a pressurized oxygen-enriched leaching method for a waste catalyst containing tungsten and molybdenum, and relates to the technical field of solid waste resource utilization, in particular to a pressurized oxygen-enriched leaching method for efficiently recovering tungsten and molybdenum from the waste catalyst containing tungsten and molybdenum, which comprises the following steps: firstly, removing organic matters and sulfides in the waste catalyst through anaerobic pyrolysis and oxidizing roasting steps; tungsten and molybdenum are oxidized into tungsten oxide and molybdenum oxide. Then, the treated catalyst is smashed and subjected to oxygen-enriched alkaline leaching in a high-pressure reaction kettle, a mixed solution of sodium carbonate and sodium hydroxide is selected as a leaching agent, and tungsten and molybdenum are converted into water-soluble sodium tungstate and sodium molybdate respectively under the conditions that the temperature is 150-200 DEG C and the oxygen pressure is 0.1-1.5 MPa, so that efficient leaching is achieved. By means of the method, the leaching rates of molybdenum and tungsten can reach 99% or above and 95% or above respectively, the recovery efficiency of valuable metal is remarkably improved, and the process is simple, environmentally friendly and suitable for large-scale industrial production.

The utility model relates to the technical field of packaging bag production equipment, and discloses a degradable plastic packaging bag production feeding device which comprises a supporting frame, and a control panel is fixedly installed on the front face of the supporting frame. The feeding assembly is arranged on the upper portion and one side of the supporting frame; by arranging an air bellow machine, a control panel opens the air bellow machine, a conveying pipeline conveys air into a dehumidification box, meanwhile, a heating resistance wire conducts heating, a hot air drying environment is formed in the dehumidification box, raw materials are dried, moisture in the raw materials is removed, and the raw materials are prevented from generating bubbles in the melting process; an air cylinder drives a connecting rod to enable a baffle to face upwards, dried raw materials are conveyed into a quantitative conveying pipeline, then feeding is carried out, the raw materials are accurately metered, it is ensured that the raw material dosage of each packaging bag is consistent, and the effects of raw material drying and quantitative feeding are achieved.

The present invention relates to a method for preparing low-carbon olefin raw materials by selective desulfurization and denitrogenation of diesel, wherein the diesel raw material oil is contacted with a selectively regulated hydrofining catalyst for hydrofining reaction, and the obtained refined oil is subjected to solvent extraction to obtain extracted oil rich in aromatics and raffinate oil rich in alkanes; wherein the raffinate oil is used as a high-quality raw material for steam cracking to produce ethylene, and the extracted oil can be directly used as a raw material for hydrocracking or catalytic cracking to produce high-octane gasoline or BTX light components. The present invention optimizes the raw materials and process structure of the existing device, not only fully utilizes various raw material resources, but also effectively solves the problem of diesel outlet and ethylene material shortage.

The invention provides a healthy, safe and effective new raw material for cosmetics, namely flavone piperil ester or a salt compound thereof. The flavonoid piperazine ester can well inhibit the activity of hyaluronidase and increase the content of collagen in cells, so that the flavonoid piperazine ester has the effects of relieving, moisturizing and resisting wrinkles, meanwhile, the flavonoid piperazine ester shows remarkable DPPH free radical scavenging capacity, and the flavonoid piperazine ester is a good antioxidant. The composition can be used for preparing skin external preparations and is a good cosmetic raw material.

The invention discloses an optical fiber coloring ultraviolet curing monitoring and correcting system and method for a communication optical cable. The system comprises an optical fiber to be colored and cured; a mirror; a photoelectrochemical ultraviolet detection module; the wavelength detection module is used for realizing ultraviolet wavelength detection; the ultraviolet curing module is used for realizing 360-degree omnibearing curing of the optical fiber; the optical power calculation module is connected with the photoelectrochemical ultraviolet detection module and is used for processing the electric signal output by the photoelectrochemical ultraviolet detection module and giving out the output power of the ultraviolet light; and the signal feedback module is used for judging whether the power and the wavelength of the received ultraviolet light meet curing requirements or not and making corresponding feedback. According to the invention, the output power and wavelength of the ultraviolet light can be conveniently monitored, when the power of the ultraviolet light is insufficient, additional compensation of the ultraviolet light is added, correction can be carried out at the first time, and the waste of time, personnel and cost in the process of stopping production to adjust the power of the ultraviolet lamp of the host due to insufficient power is solved.

The invention discloses a gabion gabion grid reinforcing system for preventing a backfill dumping site of an open pit from being damaged. The gabion gabion grid reinforcing system comprises an inner dumping site, a base, gabion gabion grids, backfill discrete materials and inclinometer pipes. The inner dumping site is used for piling and discharging backfill discrete materials; the base is an exposed surface after mining of the strip mine pit is completed, is used as a supporting land for subsequent dumping operation, and provides geological conditions for laying of gabion gabion grids; the gabion gabion grid is laid on the surface of the base and used for maintaining and reinforcing the multi-layer slope structure formed by the backfill discrete materials. Backfill discrete materials are transported to the inner dumping site through the dumping truck and dumped into the inner dumping site; and the inclinometer pipe is used for monitoring the displacement of the soil body subsequently. According to the method, the shear strength of backfill discrete materials is remarkably improved, then the stability of the side slope of the waste dump is stabilized, horizontal deformation of the dumping steps in the slope direction is effectively restrained, and deformation and large-volume landslide possibly caused by external erosion of the side slope of the waste dump are avoided.

The invention relates to the technical field of food processing, in particular to dried orange peel and Chinese yam soft rice and a preparation technology thereof. In order to improve the health preserving effect of the soft steamed bun, the raw materials and the preparation process of the soft steamed bun are improved, dried tangerine or orange peel and Chinese yam components are added into the raw materials, and during dough preparation, Chinese yam paste is used for replacing part of flour, so that part of Chinese yam flavor can be added to the dough by adding the Chinese yam paste into the dough, and the health preserving effect of the soft steamed bun is improved. Moreover, the bread paste can play a role in partially blanching the bread paste, improve the taste of the bread paste and improve the water-holding and moisture-preserving capability of the paste; in order to avoid reduction of dough toughness, part of vital gluten is also added, so that the dough toughness is improved, and the defect of insufficient bread baking expansion caused by reduction of gluten supporting force due to addition of the Chinese yam paste is overcome; on the basis of the traditional soft European bun stuffing, the pericarpium citri reticulatae powder is added into the soft European bun stuffing, so that the greasy phenomenon caused by excessive sweetness and oil of the traditional stuffing can be effectively improved by adding the pericarpium citri reticulatae powder, and the aftertaste of the soft European bun in the mouth is improved.

The invention provides organic silicon modified polyurethane emulsion, application thereof and back coating liquid for a thermal transfer ribbon, and particularly relates to the technical field of thermal transfer materials. The organic silicon modified polyurethane emulsion is mainly obtained by reaction of polyol, organic silicone oil, isocyanate, a catalyst and a chain extender. The preparation method comprises the following steps: adding isocyanate, a catalyst and an organic solvent into polyol and organic silicone oil, carrying out a prepolymerization reaction to obtain a prepolymer, and then adding a chain extender into the prepolymer solution to carry out a polymerization reaction to obtain the organic silicon modified polyurethane emulsion. The thermal decomposition temperature of the organic silicon modified polyurethane emulsion is 350 DEG C or above, the heat resistance and smoothness of organic silicon are brought into play, the high cohesiveness of polyurethane and a PET film can also be brought into play, and the heat transfer printing requirement is met by integrating the advantages of the organic silicon and the high cohesiveness of the polyurethane and the PET film.

The invention relates to the technical field of flame retardants, and particularly discloses an antibacterial flame-retardant nylon fabric and a preparation method thereof. Comprising the following steps: pretreating nylon fabric; soaking the pretreated nylon fabric in an antibacterial flame retardant for treatment, and drying after soaking to obtain the antibacterial flame-retardant nylon fabric, the antibacterial flame retardant is prepared from guanidine sulfamate, tannic acid and a solvent. Amino groups in guanidine sulfamate and phenolic hydroxyl groups in tannic acid form a macromolecular net-shaped structure through electrostatic interaction, are wound on the surface of fabric fibers in the fabric dipping process, and generate electrostatic interaction with amino groups on the surface of nylon fabric, so that the antibacterial flame retardant is adsorbed on the surface of the nylon fabric. In the combustion process, guanidine sulfamate in the antibacterial flame retardant acts through a gas-phase flame retardant mechanism; tannic acid plays a role in flame retardance in the form of a carbon source. Meanwhile, due to the synergistic effect of guanidine sulfamate and tannic acid, the nylon fabric is also endowed with a very good antibacterial effect. The preparation method is simple in process and easy for large-scale industrial production.

The invention discloses isostatic pressing graphite and a preparation process thereof, and relates to the technical field of graphite, and the isostatic pressing graphite is prepared from the following components: asphalt, modified coke powder, graphite powder, graphene, a modified binder and water; wherein the mixing weight part ratio of the graphite powder to the graphene is 4: 1; the prepared isostatic pressing graphite has the characteristics of high density, high strength, high thermal conductivity, high corrosion resistance, good dimensional stability and the like. The raw materials and the preparation process of the isostatic pressing graphite in the prior art are correspondingly improved, so that the comprehensive performance of the isostatic pressing graphite can be greatly improved, high stability can be still kept in a high-temperature and high-pressure environment, and the application range of the prepared isostatic pressing graphite is further widened.

The invention discloses a gas core coplanar ultrathin vapor chamber with a hydrophilic and hydrophobic inner wall and a preparation method of the vapor chamber. The vapor chamber comprises an upper shell plate, a lower shell plate and a three-dimensional structure liquid absorption core. The upper shell plate and the lower shell plate are provided with inner cavities, the wall face of the inner cavity of the upper shell plate is connected with the top face of the three-dimensional structure wick, and the wall face of the inner cavity of the lower shell plate is connected with the bottom face of the three-dimensional structure wick. The upper shell plate and the lower shell plate are attached and packaged to form a sealing structure, and the three-dimensional structure liquid absorption core is wrapped in the sealing structure. Hydrophilic and hydrophobic wedge-shaped patterns are etched on the inner cavity wall faces, connected with the three-dimensional structure wick, of the upper shell plate and the lower shell plate. The upper wall surface and the lower wall surface of the steam channel are etched with the hydrophilic and hydrophobic interphase wedge-shaped patterns to form the hydrophilic and hydrophobic interphase wall surfaces, so that condensed working medium liquid drops can be quickly spread and quickly adsorbed by the liquid absorption core arranged on the side edge, and the steam channel cannot be blocked by the working medium liquid drops; and the problem of poor heat transfer performance of the ultrathin vapor chamber caused by increase of steam flow resistance is prevented.

This invention provides a method and system for producing cyclohexyl hydrogen peroxide by cyclohexane oxidation. The method includes the following steps: reacting cyclohexane with an oxygen-containing gas containing CO2 to obtain a material containing cyclohexyl hydrogen peroxide. The method of this invention improves the yield and selectivity of cyclohexyl hydrogen peroxide by reacting the feed cyclohexane with an oxygen-containing gas containing CO2, reduces production costs, requires less equipment investment, and has a simple operation process. It can be used in the continuous industrial production of cyclohexane to cyclohexyl hydrogen peroxide via air oxidation.

This invention relates to the field of radioactive wastewater treatment technology, and in particular to a method for preparing a single-atom catalytic material, its product, and its application. The single-atom catalytic material of this invention uses Pt... 4+ Replace the Zn metal center of ZIF-8 2+ The single-atom catalytic material of this invention can rapidly and effectively remove uranium (VI) under photoexcitation. This single-atom catalytic material features a fast photocatalytic rate, and the raw materials required for its preparation are inexpensive and readily available, with a simple preparation process and high synthesis efficiency. In simulated experiments with high-concentration uranium (VI), the photocatalytic removal of uranium exhibits excellent results, demonstrating excellent practical applicability.

This invention relates to the field of dust removal filter media technology, specifically to a fiber composite needle-punched filter media and its preparation method. To enhance the high-temperature performance of the needle-punched filter media, this invention adds modified carbon fiber material to polyethylene terephthalate (PET). This invention further enhances the compatibility and bonding strength between the carbon nanofibers and PET by oxidizing the surface and then carboxylating it, introducing fluorine elements onto the carbon fiber surface, and further preparing a PET-like structure. This significantly increases the compatibility and bonding strength between the carbon nanofibers and PET. Simultaneously, the fluorine introduced in this process significantly improves the stability of polyester fibers at high temperatures and enhances their resistance to chemical corrosion such as acids and alkalis, thereby improving the service life of the filter media in high-temperature flue gas.

The invention belongs to the technical field of functional materials, and discloses a cobalt-based MOF crystal material and a preparation method and application thereof. The molecular formula of the cobalt-based MOF crystal material is [Co (H3TPPE) x (H3TTPE) y (HCOO)], wherein the value of x and the value of y meet the condition that x + y = 1; the H3TPPE is partially deprotonated 1, 1, 2, 2-tetra (4-(1H-pyrazol-4-yl) phenyl) ethylene, and the H3TPPE is partially deprotonated 1, 1, 2, 2-tetra (4-(1H The H3TTPE is partially deprotonated 1, 1, 2, 2-tetra (4-(1H-tetrazole-4-yl) phenyl) ethylene, and the structural formula of the H3TTPE is shown in the description. According to the cobalt-based MOF crystal material, through the synergistic effect of the two nitrogen heterocyclic ligands, while a large number of strong adsorption sites are introduced, the problem of pore channel blockage possibly caused by too dense functional sites is avoided, high porosity and a good gas diffusion channel are successfully kept, the material shows excellent adsorption capacity to gas (CO2) at normal temperature and normal pressure, and the cobalt-based MOF crystal material has good application prospects. The specific application potential is realized in the field of carbon capture.

Provided is an aldehyde composition including an aldehyde represented by General Formula (1) below and an aldehyde represented by General Formula (2) below, and a mass ratio between the aldehyde represented by Formula (1) and the aldehyde represented by Formula (2), [(1) / (2)], is from 96 / 4 to 99.9 / 0.1: where R represents a methyl group or a hydrogen atom.

The present invention makes it possible to produce adipic acid at a high selectivity without emitting dinitrogen monoxide by using a 3-hydroxyadipic acid 3,6-lactone composition as a starting material, the composition containing 3 to 30 parts by weight of α-hydromuconic acid per 100 parts by weight of 3-hydroxyadipic acid 3,6-lactone. The resulting adipic acid can be used as a polyamide starting material or a polyester starting material.

The invention discloses a tea tree and kiwi fruit three-dimensional symbiotic planting method which comprises the following steps: S1, selecting a proper tea tree planting variety which is suitable for growing under a kiwi fruit frame; s2, the intercropping planting density of the kiwi fruit trees and the tea trees is determined; and S3, establishing a management technology system for long-term mutual symbiosis of the kiwi fruit trees and the tea trees, and ensuring healthy growth and product safety of the kiwi fruits and the tea trees. The method has the advantage that resources are fully utilized, the problems that in the existing tea tree and kiwi fruit planting process, symbiotic planting of the two plants is inconvenient, consequently, part of land cannot be utilized, and full play of agricultural resources is affected are solved, the unit area land utilization rate can be effectively increased, and economic benefits are improved.

The present invention provides a method for synthesizing 16-hydroxycapsaicin and isotope-labeled substances thereof. Compound 4 and compound d3-3 or d3-3 are used as raw materials to undergo olefin metathesis reaction to efficiently synthesize a target compound. The method is simple and easy to operate. The structural formula of compound 4 is: The structural formula of compound 3 is: The structural formula of compound d3-3 is: In addition, the present invention also provides a method for synthesizing 16-hydroxycapsaicin and isotope-labeled substances thereof. Starting from 6-n-heptenoic acid, the target molecule is efficiently synthesized through amidation reaction and olefin metathesis reaction. The entire synthetic route is reasonably designed, the raw materials are simple and easy to obtain, the operation is simple, the operability is strong, the purification is easy, and the obtained product has high purity. The synthesized target molecule provides a test sample for in vivo pharmacokinetic research of capsaicin and metabolite biological activity research, and has important application value.