80 results about "Sodium stearate" patented technology

The invention relates to the technical field of building materials, and discloses a mortar containing a nanometer material and a preparation method thereof, the mortar comprises 70-80 parts by weight of cement, 8-12 parts by weight of fly ash, 0.4-0.5 part by weight of a polycarboxylic acid water reducer, 0.4-0.6 part by weight of hydroxypropyl methyl cellulose, 1-2 parts by weight of the nanometer material, 2-3 parts by weight of modified silk fibroin and 40-50 parts by weight of water. Wherein the modified nano silicon dioxide is modified by gamma-aminopropyltriethoxysilane, the modified cubic nano calcium carbonate is subjected to compound modification by fumaric acid, sodium stearate and palmitic acid, and the modified silk fibroin is prepared by grafting modification by bis-aminopropyl terminated polysiloxane. According to the mortar, through optimization of component matching and modification treatment of the nano material and the silk fibroin, the mechanical property, durability and crack resistance of the mortar are remarkably improved, and the cost is controllable.

This invention discloses an aramid fiber reinforced solid conveyor belt and its preparation method, relating to the field of conveyor belt technology. Specifically, it includes the following steps: S1: Aramid fiber cloth passes through a continuous plasma surface treatment machine at a uniform speed, and its upper and lower surfaces are subjected to plasma activation treatment to obtain modified aramid fiber cloth; S2: (1) Natural rubber, styrene-butadiene rubber, chloroprene rubber, ethylene propylene diene monomer (EPDM) rubber, terpene phenolic resin, modifier, modified filler, bis-[3-(triethoxysilyl)propyl]tetrasulfide, zinc oxide, antioxidant, flame retardant, sodium stearate, vulcanizing agent, and vulcanization accelerator are added to a mixing machine and mixed to obtain a compound; (2) The compound is transferred to a calender and calendered to obtain a cover layer; S3: The cover layer, modified aramid fiber cloth, and cover layer are stacked in the order of top to bottom, and then rolled, bonded, and vulcanized to obtain an aramid fiber reinforced solid conveyor belt.

The invention relates to a sealing ring material and a preparation method and application thereof, and belongs to the technical field of diaphragm pump components. The sealing ring material comprises the following components in parts by weight: 100 parts of a rubber matrix; 5 to 10 parts of boron nitride nanosheets; 5 to 10 parts of graphene oxide; 4-8 parts of microcrystalline wax; 3-6 parts of sulfur; 2-4 parts of sodium stearate; 1-4 parts of a vulcanization accelerator; 1-3 parts of zinc oxide; 4-8 parts of an anti-aging agent; the rubber matrix comprises nitrile rubber, chloroprene rubber and isoprene rubber, and the nitrile rubber accounts for 60-80 wt% of the total amount of the rubber. The sealing ring material provided by the invention has relatively good high temperature resistance, is not easy to soften and deform, also has relatively good air tightness and permeation resistance, and has obvious performance advantages when being used as a sealing ring for a diaphragm pump.

The application discloses an acrylic emulsion, and steps are as follows: adding deionized water, polyvinylpyrrolidone and sodium stearate into a reaction kettle under normal temperature, heating, stirring and dissolving, stopping heating after complete dissolution, and obtaining component A; stirring, mixing, heating and obtaining component B by mixing polyethylene glycol, water-based acrylic resin, a dispersing agent and an emulsifier under normal temperature; stirring and mixing water-based color paste, bisphenol A and sodium dodecyl sulfonate under normal temperature, and obtaining component C; stirring and mixing component A, component B and a defoaming agent under normal temperature, heating, cooling again, adding glycerol, cooling, adding essence and component C while stirring, uniformly stirring and mixing, continuously cooling, and obtaining the acrylic emulsion. The obtained acrylic emulsion is environment-friendly, harmless, does not affect children's health, not easy to age, and convenient to clean.

The invention discloses a special modified submicron antimony-based composite flame retardant for ABS (Acrylonitrile Butadiene Styrene). The special modified submicron antimony-based composite flame retardant is prepared from the following raw materials in parts by mass: 40 to 50 parts of submicron antimony trioxide, 20 to 25 parts of composite magnesium aluminum silicate, 20 to 25 parts of composite hydrophosphate, 2 to 5 parts of barium sulfate, 2 to 5 parts of superfine aluminum hydroxide and 2 to 5 parts of superfine magnesium hydroxide. Taking CTAB (cetyltrimethyl ammonium bromide), composite magnesium aluminum silicate and sodium stearate, mixing and reacting to obtain modified composite magnesium aluminum silicate; taking a silane coupling agent, submicron antimony trioxide and the modified composite magnesium aluminum silicate salt to react to obtain modified submicron antimony trioxide; taking a silane coupling agent, composite hydrophosphate and stearic acid to react to obtain modified composite hydrophosphate; finally, the modified submicron antimony trioxide, the modified composite hydrophosphate and the remaining raw materials are evenly mixed to obtain the special modified submicron antimony-based composite flame retardant for ABS, the special modified submicron antimony-based composite flame retardant for ABS has the good flame retardant effect and smoke suppression effect, and an ABS material prepared by mixing the special modified submicron antimony-based composite flame retardant with ABS resin can be used for production of new energy automobile key assemblies and high-end electronic and electrical components.

The application relates to the technical field of manganese additive, and discloses a preparation of a manganese element additive for producing an aluminum alloy and an adding method thereof; manganese element additives are pre-added at a feeding port of a smelting furnace, and aluminum liquid is added through the feeding port; the manganese element additives comprise manganese powder, a dissolving aid and a bonding agent; the dissolving aid is selected from one or more of aluminum powder or fluoroaluminate; the fluoroaluminate is potassium fluoroaluminate and / or sodium fluoroaluminate; and the bonding agent is selected from one or more of magnesium stearate or sodium stearate. The preparation of the manganese element additive for producing the aluminum alloy and the adding method thereof can solve the problems of low actual yield and instability of the manganese element additive and long smelting time in the adding process in the prior art, and provide a technical means with higher purity, more convenient production and better adding effect.

This invention relates to the field of polymer materials technology, and discloses a modified PET composition, its preparation method, and its application. The modified PET composition, by weight, comprises the following components: 70-85 parts isosorbide-modified PET resin, 2-5 parts rutile titanium dioxide, 3-5 parts needle-shaped calcium carbonate, 2-3 parts spherical calcium carbonate, 1-3 parts hydroxyl- or carboxyl-terminated hyperbranched dispersant, 0.2-0.6 parts antioxidant, 0.3-0.5 parts sodium stearate, and 0.1-0.3 parts nucleating agent. The modified PET composition of this invention achieves high heat resistance and heatability while also exhibiting high impact resistance, low warpage, and excellent processing flowability. It is suitable for thin-walled injection molding of food containers, possessing good dimensional stability and food contact safety.

The application discloses a kind of high anti-permeability high homogeneity cement-based repair mortar and preparation method thereof, belong to cement material preparation technical field.Concrete is: microcrystalline glass fine aggregate is dispersed to lye and is handled, after completion, the microcrystalline glass fine aggregate obtained is washed and placed in solution containing calcium ion source and carbon powder, then stirring heating reaction, obtain I-grade pretreatment fine aggregate;I-grade pretreatment fine aggregate is calcined in air atmosphere, and obtain II-grade pretreatment fine aggregate;II-grade pretreatment fine aggregate is placed in the mixed solution of sodium stearate and sodium alginate and is ultrasonically treated, then separate out solid, dry after III-grade pretreatment fine aggregate is obtained;III-grade pretreatment fine aggregate is mixed with cementitious component, silica fume, reinforcing fiber, water reducing agent, water and is stirred uniformly to obtain high anti-permeability high homogeneity cement-based repair mortar.The method of the application can make microcrystalline glass fine aggregate uniformly distributed in mortar, ensure repair effect.

Methods of making stable, dry coated fruit powders are provided. The methods include providing a fruit powder; selecting a hydrophobic stearate guest particle from the group consisting of ammonium stearate, zinc stearate, calcium stearate, sodium stearate, potassium stearate, magnesium stearate, glyceryl stearate, propylene glycol monostearate, sorbitan stearate, triglyceryl monostearate, hexaglyceryl distearate, and decaglyceryl monostearate; and dry coating the fruit powder with the hydrophobic stearate guest particles using high shear. The hydrophobic stearate guest particles are dry coated with respect to the fruit powder at levels between about 1 and 10 wt % in order to form a continuous layer.

The invention relates to the technical field of cables, and provides a corrosion-resistant aerial insulated cable which sequentially comprises a conductor, a shielding layer and an insulating layer from inside to outside. The conductor sequentially comprises an inner core layer and an outer core layer from inside to outside; the inner core layer is composed of six aluminum alloy conductors with the same diameter, and the outer core layer is composed of ten aluminum alloy conductors with the same diameter. The shielding layer is an aluminum foil shielding layer; the insulating layer comprises the following components in parts by weight: 70-80 parts of polyethylene, 20-35 parts of an ethylene-vinyl acetate copolymer, 15-20 parts of corrosion-resistant master batch, 25-30 parts of calcium carbonate, 1-2 parts of a light stabilizer, 2-3 parts of a lubricant, 1-2 parts of an antioxidant and 1-2 parts of a vulcanizing agent; the corrosion-resistant master batch is prepared from the following components in parts by weight: 65 to 70 parts of fluororubber, 5 to 9 parts of modified montmorillonite, 8 to 15 parts of ethylene-tetrafluoroethylene copolymer and 1 to 3 parts of sodium stearate. According to the technical scheme, the problem of poor corrosion resistance of the overhead insulated cable in the prior art is solved.

The invention discloses wear-resistant modified graphene lubricating oil and a preparation method thereof, and belongs to the technical field of lubricating oil, the wear-resistant modified graphene lubricating oil comprises the following raw materials: alkyl naphthalene base oil, sodium stearate, an antioxidant 5057, an organic silicon defoamer, polyisobutylene succinimide and a wear-resistant modified graphene additive; gamma-glycidyl ether oxypropyl trimethoxy silane is used for modifying graphene oxide in advance, accumulation between graphene sheet layers can be effectively prevented, agglomeration is avoided, then reduction is performed through vitamin C, residual oxygen-containing functional groups are removed, a conjugated structure is recovered, epoxy groups are reserved, and different from traditional hydrothermal synthesis, the preparation method has the advantages that the preparation method is simple, and the preparation cost is low. The graphene oxide and the carbon quantum dots only have physical adsorption, so that the graphene oxide and the carbon quantum dots can be prevented from falling off in high-pressure, strong-shearing-force and local high-temperature environments in the friction process, and the antifriction effect can be stably exerted for a long time.

The invention discloses a preparation method of high-strength quartz sand for fracturing, the quartz sand is subjected to cleaning, dehydration, ball milling and secondary modification, the modification is divided into polymerization modification and surface modification, a modifier for polymerization modification comprises vinyltriethoxysilane, sodium stearate, a 1% sodium hydroxide solution, phenolic resin and titanate, and the modifier is a mixture of vinyl triethoxysilane, sodium stearate, 1% sodium hydroxide solution, phenolic resin and titanate. According to the invention, the roundness, sphericity, surface smoothness, microstructure and other properties of the quartz fracturing sand are improved, so that the technical problems of lower strength and poorer crushing resistance of the quartz fracturing sand are solved.

The invention discloses a surface treatment method of a high-specific-gravity tungsten alloy, which comprises the following steps: firstly, carrying out plasma treatment on the high-specific-gravity tungsten alloy for 10-15 minutes at the treatment power of 350-400 W, and after the treatment is finished, preheating for 1 hour at the temperature of 60-65 DEG C to obtain the preheated high-specific-gravity tungsten alloy; preparing a modified liquid: adding 1-3 parts of a silane coupling agent KH550, 2-4 parts of a sodium stearate agent and 3-5 parts of a modified additive into 5-8 parts of a chitosan solution, and fully stirring to obtain the modified liquid. According to surface treatment of the high-specific-gravity tungsten alloy, the high-specific-gravity tungsten alloy is subjected to plasma treatment and then subjected to ultrasonic modification treatment through a modification solution, a sodium stearate agent in the modification solution is matched with a modification additive and a silane coupling agent KH550, and the acid corrosion resistance stability of a high-specific-gravity tungsten alloy product is optimized through blending and synergistic effects of the raw materials; the acid corrosion stability under different concentration conditions is optimized.

The invention relates to a preparation method of dihydroxy aluminum monostearate, which is characterized by comprising the following steps: (1) mixing sodium hydroxide and water, heating to 60-95 DEG C, adding stearic acid with the same molar as the sodium hydroxide, and stirring to react for 0.05-0.5 hour to generate a sodium stearate solution; (2) aluminum salt is dissolved in water and added into the sodium stearate solution, a reaction is conducted for 0.5-2 h, and the molar ratio of aluminum ions to sodium stearate in the aluminum salt solution is (1-1.03): 1; (3) dissolving ammonium carbonate in water, adding into the reaction liquid in the step (2), and reacting for 0.5-2 hours; and (4) separating the solid, and drying to obtain the dihydroxy aluminum monostearate. According to the preparation method provided by the invention, the dihydroxy aluminum monostearate with high purity and small particle size can be obtained with high yield.

This invention discloses an environmentally friendly calcium / zinc stabilizer and its preparation method. The stabilizer comprises the following raw materials in the indicated mass percentages: calcium salt 25-40%, zinc salt 10-15%, zinc acetylacetonate 5-10%, uracil 5-10%, antioxidant 5-10%, pentaerythritol sodium tetrastearate 5-10%, nano-sized montmorillonite 5-10%, polyethylene glycol 3-5%, and lubricant 22-35%. The stabilizer is prepared through the steps of raw material weighing, premixing, activation, homogenization, cooling, pulverization, and sieving. This invention utilizes a specific three-stage temperature-controlled blending process to achieve an in-situ stable three-dimensional structure formed by nano-montmorillonite, calcium and zinc ions, and polyethylene glycol polymer chains. This three-dimensional structure not only achieves uniform dispersion and synergistic effect of the components, endowing the stabilizer with excellent long-term thermal stability, but also simplifies the production process, avoids the use of expensive or complex modified raw materials, and significantly reduces production costs while ensuring performance, thus combining high efficiency, environmental friendliness, and economy.

This invention relates to the field of rubber materials technology. It provides a chlorohydrin rubber material with fatigue resistance, low-temperature resistance, and low air permeability, as well as its preparation method. The raw materials of the chlorohydrin rubber material, by weight, include 95-105 parts of chlorohydrin rubber, 33-37 parts of carbon black, 0.29-0.31 parts of sulfur, 0.9-1.1 parts of accelerator CZ, 1.1-1.3 parts of accelerator ETU, 4.8-5.2 parts of acid scavenger, 2.8-3.2 parts of antioxidant, 13-17 parts of plasticizer, 1.3-1.7 parts of dispersant, 1.5-2.5 parts of lubricant, and 2.0-3.0 parts of sodium stearate. The chlorohydrin rubber is an epichlorohydrin-ethylene oxide binary copolymer chlorohydrin rubber with a chlorine content of 24-26%. The chlorohydrin rubber material of this invention, without adding homopolymer raw rubber, can simultaneously satisfy the requirements of high fatigue resistance, excellent low-temperature resistance, and low air permeability.

The invention relates to the technical field of food packaging, in particular to an environment-friendly degradable food packaging material and a preparation process thereof. The invention relates to a preparation process of an environment-friendly degradable food packaging material. The preparation process comprises the following steps: preparing xylan coated silver nanoparticles, preparing modified vinasse powder, and preparing a toughening barrier blending agent. And preparing the food packaging material. The silver nanoparticles are coated with xylan, so that the antibacterial property, the stability and the material compactness are improved; and the sodium stearate modified vinasse powder enhances the interface effect of the matrix and improves the mechanical properties. The PBAT is subjected to chain scission-crosslinking by using sorbitol and aziridine cross-linking agents, so that hydroxyl and free volume are reduced to resist oxygen and water; a toughening barrier blending agent is synthesized through ester exchange polycondensation, and mechanical, barrier and antibacterial properties of the material are synergistically optimized by means of molecular crosslinking entanglement and a rigid structure.

The invention discloses a tungsten wire diamond wire and a preparation method thereof, and relates to the technical field of diamond wire manufacturing. Comprising the following steps that 1, a basic tungsten filament is subjected to soap soaking, cold drawing, cleaning and drying in sequence, and a tungsten filament bus is obtained; and 2, the tungsten filament bus is electroplated with a transition layer and a porous plating layer in sequence, then thermal diffusion, sanding, thickening, cleaning and drying are conducted, and the tungsten filament diamond wire is obtained. In the soap soaking process, a used saponification solution is composed of sodium stearate, 2-dodecyl-2H-benzotriazole and an ethanol water solution according to the mass ratio of (3-5): 1: 50. According to the tungsten wire diamond wire prepared through the method, the coating adhesive strength is high, the diamond micro-powder is stable, and therefore the mechanical property of the tungsten wire diamond wire can be remarkably improved, the cutting efficiency of the tungsten wire diamond wire is lasting, and the service life of the tungsten wire diamond wire is prolonged.

This invention discloses a method for preparing nano-calcium carbonate for solar photovoltaic adhesives. The steps include: adding sucrose to lime milk, cooling the lime milk to 6-10°C, and introducing a high-carbon dioxide concentration mixed gas to carry out a carbonation reaction, obtaining a calcium carbonate suspension #1; then adding hot water to dilute the suspension, introducing a low-carbon dioxide concentration mixed gas to carry out a carbonation reaction, and simultaneously adding lime milk to the suspension to carry out a calcium carbonate reaction, obtaining a calcium carbonate suspension #2; then adding sodium stearate for surface treatment, adding a soluble inorganic metal salt, and finally adding phosphoric acid triamine and phosphate ester for surface treatment respectively; dehydrating, drying, and pulverizing using a filter press to obtain nano-calcium carbonate. This invention uses a unique carbonation process to prepare nano-calcium carbonate with controllable particle size and more regular morphology, which can endow nano-calcium carbonate with superior mechanical properties; special surface treatment further improves the aging resistance of nano-calcium carbonate-filled photovoltaic adhesives.

The present invention provides a method for obtaining high-purity and high-stability recombinant human albumin, wherein medium-long-chain fatty acid ligands are added and proteins of charge heterogeneity are removed through anion and / or cation chromatography. An inventiveness of the present invention is that the mixed solution contains a fatty acid mixture and poloxamer, and the molar ratio of oleic acid, myristic acid, sodium palmitate, sodium stearate to recombinant human albumin is 0.3:0.3:0.3:0.5:1. Sequential use of ion exchange chromatography can effectively remove truncated albumins, mismatched or modified albumins from recombinant albumins, to remove albumins of charge heterogeneity and modified albumins, to obtain high-purity and high-stability human albumin.

The application discloses a high-thermal-conductivity stainless steel for a chip support and a preparation method thereof, and relates to the technical field of stainless steel plating. In the application, a nickel layer is first plated on the surface of a stainless steel base, then a copper layer is plated, and finally a high-thermal-conductivity coating is coated to obtain the high-thermal-conductivity stainless steel for the chip support; the nickel has high lattice matching with the stainless steel, the nickel layer has high bonding strength with the stainless steel base, the copper has a thermal conductivity much higher than that of the stainless steel, and the copper plating layer can significantly improve the thermal conductivity; the high-thermal-conductivity coating comprises a multi-epoxy-based epoxy resin, an epoxy-modified carbon nanotube, flaky silver powder, sodium stearate and a curing agent; the high-thermal-conductivity layer formed after the multi-epoxy-based epoxy resin is cured has high crosslinking density, good wear resistance and corrosion resistance, and many reaction sites, and can be quickly cured to improve the efficiency; the epoxy-modified carbon nanotube and the flaky silver powder have a synergistic effect to form a nearly comb-shaped dispersion, which is beneficial to heat dispersion and comprehensive improvement of the heat dissipation.

The fluororubber sealing device is prepared from the following components in parts by weight: 80 to 100 parts of fluororubber, 5 to 30 parts of carbon black, 1.0 to 1.8 parts of vulcanizing agent, 0.2 to 0.8 part of vulcanization accelerator, 0.1 to 0.5 part of ionic liquid plasticizer, 0.1 to 0.5 part of stabilizer and 0.1 to 0.5 part of release agent, wherein the ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim] [BF4]); the stabilizer comprises the following components in parts by weight: 1-4 parts of MgO and 2-8 parts of Ca (OH) 2. The ionic liquid involved in the invention is 1-butyl-3-methylimidazolium tetrafluoroborate, and compared with a traditional plasticizer (such as sodium stearate, palm wax and the like), [Bmim] [BF4] has a better promotion effect on dispersion of a filler, and also can improve the hardness, tensile property and permanent compressibility of the material to a certain extent.

The application discloses a preparation method of a modified calcium-zinc stabilizer for SPC and relates to the technical field of stabilizer preparation. The method comprises the following steps: synthesizing CaSt2@CeSt3 compound, preparing stearic acid modified magnesium-aluminum hydrotalcite, and preparing the modified calcium-zinc stabilizer; the CaSt2@CeSt3 compound is prepared from a calcium stearate suspension, a Ce(NO3)3 solution and a sodium stearate solution; the stearic acid modified magnesium-aluminum hydrotalcite is prepared from stearic acid and magnesium-aluminum hydrotalcite; and the modified calcium-zinc stabilizer is prepared from the following raw materials: stearic acid, nano zinc oxide, CaSt2@CeSt3 compound, stearic acid modified magnesium-aluminum hydrotalcite, monoglyceride, polyethylene wax, pentaerythritol, light calcium carbonate, a mildew inhibitor and an ultraviolet absorption inhibitor. The prepared modified calcium-zinc stabilizer has excellent thermal stability and can effectively enhance the mechanical properties and anti-aging performance of the SPC.

The invention relates to the field of concrete materials, and particularly discloses a preparation process of a chloride ion erosion resistant marine concrete material, which comprises the following steps: (1) adding mixed powder formed by metastable modified powder, gamma-C2S or calcium silicate powder and sodium alginate powder into a calcium nitrate solution, uniformly stirring, and then separating out a solid product to obtain a calcium nitrate solution; drying, mixing with oleic acid, and grinding to obtain inner core powder; and (2) adding the inner core powder into a coating liquid formed by sodium stearate, ethyl acetate, acrylic acid and an ethanol water solution, uniformly stirring, and then carrying out spray drying to obtain the self-repairing anti-permeability agent. And (3) taking the following raw materials: cement, fine aggregate, fly ash, the self-repairing anti-permeability agent, steel fibers and a water reducing agent. The concrete material is obtained by uniformly mixing the raw materials with mixing water. The concrete material provided by the invention not only can improve the ability of the concrete material to resist chloride ion penetration, but also can cure entering chloride ions, and has a function of self-repairing cracks.

The invention discloses a fused salt heat storage material based on lithium nitrate and sodium stearate modified graphene. The fused salt heat storage material comprises the following components in parts by mass: 20-35 parts of sodium nitrate, 25-40 parts of potassium nitrate, 10-20 parts of lithium nitrate, 10-25 parts of halogenated metal salt, 0.5-2 parts of sodium stearate modified graphene and 0.5-1 part of an antioxidant, the sodium stearate modified graphene is prepared by the following steps: dispersing graphene in absolute ethyl alcohol, adding sodium stearate, and performing ultrasonic treatment to obtain the sodium stearate modified graphene. The fused salt heat storage material is low in melting point, high in heat stability, phase change latent heat, specific heat capacity and heat conductivity and low in viscosity.

The invention relates to the technical field of mineral processing, and provides a method for extracting fine iron powder from raw iron ore, which comprises the following steps: crushing and screening the raw iron ore to obtain crude raw iron ore; performing first-stage grinding, first-stage magnetic separation, second-stage grinding, second-stage magnetic separation, third-stage magnetic separation, flotation extraction and drying on the crude iron ore to obtain fine iron powder; a collecting agent is added during flotation extraction, and the collecting agent is prepared from the following components in parts by weight: 42 to 45.5 parts of sodium oleate, 18 to 19.5 parts of sodium stearate, 8 to 11.5 parts of benzohydroxamic acid, 5 to 7.5 parts of nonylcyclohexanol polyoxyethylene ether, 5 to 7 parts of castor oil polyoxyethylene ether, 5 to 7.5 parts of polypropylene glycol and 2 to 4.5 parts of sodium citrate. By means of the technical scheme, the problem that in the prior art, the iron recovery rate of fine iron powder extracted from raw iron ore is insufficient is solved.

The invention relates to the technical field of slow-release compound fertilizers, in particular to a method for preparing a slow-release compound fertilizer by using high-phosphorus byproducts in water treatment. The method comprises the following steps: sequentially carrying out high-temperature sterilization, chemical oxidation, activated carbon adsorption and magnesium chloride flocculation treatment on phosphorus-containing and nitrogen-containing wastewater in the aquaculture as a raw material, adding alcaligenes faecalis for culturing, synchronously adding an alkaline phosphorus removal agent, carrying out physical adsorption and microbial degradation, and carrying out centrifugal separation to collect high-phosphorus byproduct filter residues; the high-phosphorus by-product, a binder and monopotassium phosphate are mixed and granulated to obtain a core material; and spraying a mixed aqueous solution of carboxymethyl chitosan, EDTA, aldehyde modified alkali lignin and sodium stearate as a wall material onto the surface of the core material, and drying to prepare the slow-release compound fertilizer. The whole technological process is simple, full-quality utilization of the high-phosphorus wastewater is achieved, the wastewater treatment cost is reduced, the use amount of pesticide and chemical fertilizer in agricultural production is reduced, the yield of crops is remarkably increased, and the method has important significance on development of ecological agriculture.

The invention provides an aluminum alloy and a continuous post-treatment method thereof. The continuous post-treatment method comprises the steps that S1, a cleaning agent and water are adopted for sequentially conducting cleaning treatment and rinsing treatment on the aluminum alloy, and the cleaned aluminum alloy is obtained; s2, passivating treatment is conducted on the cleaned aluminum alloy through a passivating agent, and the passivated aluminum alloy is obtained; s3, the passivated aluminum alloy is subjected to drying treatment; wherein the passivating agent comprises a silane coupling agent, an additive B and an additive C; the cleaning agent comprises a surfactant; the additive B comprises sodium stearate; the additive C comprises micron oxide and / or nano oxide; the aluminum alloy is an aluminum alloy wire or an aluminum alloy wire blank. According to the technical scheme, the problems that in the prior art, a passivating agent has great damage to the human body and the environment, and the applicability of the continuous production process of the aluminum alloy wire rod (wire blank) is extremely low are solved.

The application discloses a preparation process of a filling material for an energy-absorbing and friction-reducing buried pipe type abandoned mine compressed gas energy storage system, and comprises the following steps: (1) sodium stearate and graphite powder are added into hot water and stirred until the sodium stearate is fully dissolved, then graphitized coal gangue particles are added into the obtained liquid phase and ultrasonic treatment is conducted; after the completion, the water in the reaction system is evaporated to obtain pretreated coal gangue particles; (2) the pretreated coal gangue particles are mixed with tetraethoxysilane and then ultrasonic treatment is conducted, and then the mixture is placed in saturated limewater and heated and kept warm to obtain self-lubricating and friction-reducing coal gangue particles; and (3) the self-lubricating and friction-reducing coal gangue particles are uniformly mixed with rubber particles to obtain the filling material. By filling a material layer with an energy-absorbing effect between the outer wall of the energy storage pipeline and the chamber, the application can not only effectively reduce the probability of damage of the energy storage pipeline, but also reduce the friction between the filling material and the outer wall of the energy storage pipeline and the damage to the outer wall of the energy storage pipeline.

This invention discloses a guanifacine hydrochloride sustained-release tablet and its preparation method. The method includes placing a granulated / mixed, tableted guanifacine hydrochloride pharmaceutical composition into a hot air device for drying. The hot air device is selected from a coating machine or an oven, and the hot air temperature ranges from 30 to 70°C. After drying, the resulting guanifacine hydrochloride sustained-release tablet has a moisture content ≤4.0% by weight, preferably ≤3.5% by weight. The guanifacine hydrochloride pharmaceutical composition contains guanifacine hydrochloride, lactose, microcrystalline cellulose, hydroxypropyl methylcellulose, methacrylate copolymer, fumaric acid, glyceryl behenate, sodium stearate fumarate, and micronized silica gel. This hot air drying process effectively controls the total impurities of the guanifacine hydrochloride sustained-release tablets to ≤1.0% and the single impurities to ≤0.1%. This process improves the safety and stability of the drug, is easy to operate, and is suitable for commercial production.