27results about How to "Not corrosive" patented technology

The invention provides a composition for treating nerve headache and a preparation method thereof, and belongs to the technical field of medicines. The preparation method comprises the following steps: carrying out steam explosion treatment on traditional Chinese medicine powder, adding the traditional Chinese medicine powder into saline water, decocting, filtering, standing filtrate to separate out a hydrochloric acid extract, adding filter residues into ethanol, adsorbing by a magnetic adsorbent, separating by a magnet, eluting, desorbing, recovering an eluent to obtain an alcohol extract, mixing and grinding the alcohol extract, the hydrochloric acid extract and flunarizine hydrochloride / nimodipine eutectic, and filling capsules with the alcohol extract and the flunarizine hydrochloride / nimodipine eutectic. The composition for treating the nerve headache is prepared. The traditional Chinese medicine composition treats neuropathic migraine through a method of combining traditional Chinese medicine and western medicine, treats both symptoms and root causes, and is good in effect and quick and lasting in effect.

The present application belongs to the technical field of cleaning products, and particularly relates to a high-temperature oil stain removing stove cleaner as well as a preparation method and application thereof. The high-temperature oil stain removing stove cleaner provided by the present application comprises the following components and mass fractions: 11-33 parts of an alkaline additive, 1-2 parts of hydroxyethylidene diphosphonic acid, 3-6 parts of a non-ionic surfactant, 4-8 parts of a solvent, 1-3 parts of a solubilizer, 1-3 parts of sodium xylene sulfonate, and 45-79 parts of water; the solvent comprises ethylene glycol monobutyl ether and diethylene glycol ethyl ether. The high-temperature oil stain removing stove cleaner provided by the present application has the advantages of simple cleaning method, high-temperature oil removing effect, good stain removing and oil scale removing effect on commercial kitchen utensils, high safety, no corrosion to metal, simple raw material composition, and no need to add a defoaming agent.

An ultrasonic cleaning device for aluminum alloy wheels includes two cleaning tanks, I and II, arranged horizontally side by side. Each tank includes a body. A support plate for placing the aluminum alloy wheel is installed in the lower part of the tank body. The support plate is horizontally positioned and has water filter holes. A support shaft is vertically installed through the bottom wall of the tank body. A horizontally positioned support rod is installed on the top of the support shaft. Several ultrasonic transducers are mounted on the support rod. A drive device is installed on the outer wall of the tank body to drive the support shaft and the ultrasonic transducers to rotate and adjust their positions via the support rod. A rotary dynamic seal is installed at the junction of the support shaft and the tank body. This device is easy to operate, highly efficient in cleaning, and can thoroughly clean all parts of the alloy wheel using ultrasonic waves, removing impurities without dead angles. The process is gentle and does not damage the appearance or performance of the wheel, helping to ensure the product quality of the aluminum alloy wheel.

The invention relates to a synthesis method and application of a double-layer thermochromic deformation hydrogel, according to the double-layer thermochromic deformation hydrogel, CMC is adopted to perform mechanical enhancement on original PNIPAm, LAP is adopted to perform photo-initiation on a monomer, and the price of CMC and LAP is far lower than that of functionalized silicon dioxide nanoparticles and AIBA in the prior art under the same usage amount. Meanwhile, drugs used in the process are free of volatility and corrosivity, and the safety degree is higher than that of acrylic monomers used in the prior art. Besides, the use temperature of a hydrogel device in the prior art is 60 DEG C and is high, while the double-layer temperature-sensitive hydrogel in the invention can be curled only at 40 DEG C, so that the hydrogel has more advantages in temperature. By adding CMC, the volume change of the hydrogel in the heating process is remarkably reduced, meanwhile, the mechanical property of the hydrogel is greatly improved, the mechanical property of the hydrogel is further improved through impregnation of zirconium ions, and the hydrogel has a wider application scene.

The utility model discloses an air suction cooling device based on low-temperature heat conduction oil, which is connected to a compressor inlet of a cooled main system, and comprises an air suction cooling heat exchanger connected between an evaporator outlet and a compressor inlet of the cooled main system, filled with gaseous main refrigerant and used for exchanging heat with main refrigerant of the cooled main system; heat of the main refrigerant is absorbed, so that the temperature of the main refrigerant is reduced; the driving equipment is connected between the gas cooling heat exchanger and the refrigerating unit evaporator and is used for driving the low-temperature heat-conducting oil to circulate in the pipeline; and an outlet of the refrigerating unit evaporator is connected with a pipeline electric heater for assuming the low-temperature heat-conducting oil to a set temperature. Compared with the prior art, the heat exchanger has no corrosion to a system basically, still has lower viscosity and flowability at low temperature, also has good thermal stability and thermal conductivity, not only can prolong the service life of equipment, but also can improve the heat exchange efficiency of the equipment.

The invention discloses an online polishing and curling integrated device and process for a magnesium alloy plate strip. The device is located between a finish rolling mill and a crimping machine and comprises a polishing groove body, a grading polishing roller set arranged above the groove body, a tension control system and a constant tension crimping mechanism. Special weak acid polishing liquid is supplied to the polishing area through the spraying system, mechanical-chemical collaborative polishing is achieved under the spraying wetting condition, and the problems caused by roller body immersion are avoided. The tension system performs hierarchical closed-loop control according to plate thickness, and the crimping mechanism is linked to keep tension constant. The process comprises online collaborative polishing and optional electrolytic polishing. Polishing and curling aiming at the characteristics of the magnesium alloy are integrated on line, the problems that magnesium chips are generated through off-line grinding, and continuous production is difficult are solved, the output of the magnesium chips is smaller than 0.002 kg / m < 2 >, the surface roughness Ra reaches 0.15-0.8 micrometer, the production efficiency is improved by 40% or above, and the method is suitable for continuous production of wide plate strips of 1600-1800 mm.

This invention provides a liquid metal-based thermal grease, its preparation method, and its application. The liquid metal-based thermal grease comprises the following raw materials in parts by weight: 100 parts liquid metal, 2-5 parts silicone oil, 0.1-20 parts thermally conductive powder filler, and 0.1-3 parts other additives. The high-reliability liquid metal-based thermal grease provided by this invention possesses excellent high thermal conductivity, high processability, and high reliability. It can replace traditional thermal grease to solve the heat dissipation and cooling problem of high-power chips, thereby extending the lifespan of electronic products.

This invention discloses an alloy catalyst, comprising a support and a copper-ruthenium alloy supported on the support, wherein the copper-ruthenium alloy is: Cu 0.7 Ru 0.3 The alloy catalyst prepared by this invention can be used to prepare cyclopentanone. The catalyst has high activity, good stability, and low price. The reactants used in the reaction are renewable, widely distributed, and inexpensive. The preparation of cyclopentanone using the catalyst of this invention does not require the introduction of acid or alkali, which solves the problem of difficult acid treatment in the prior art. Furthermore, it is not corrosive to the reaction equipment, which is conducive to large-scale production.

The present application relates to the biological field, and particularly to a weak acid buffer and its use in an immunopeptidome separation reagent, the weak acid buffer comprising amino acids and / or polypeptides, the mass-to-charge ratio of the amino acids and / or polypeptides being theoretically predictable and experimentally reproducible, or the mass-to-charge ratio being beyond the preset acquisition range of a mass spectrometer; the weak acid buffer further comprising a volatile acid, the volume concentration of the volatile acid being 0.01% to 10%; and the pH of the weak acid buffer being 3.0 to 3.5. The weak acid buffer of the present application has high compatibility, can maximally avoid pollution and signal interference to an analysis system, has a simple experimental procedure, and the overall operation can be completed within tens of minutes, thus having low technical threshold and high acceptability; can improve the number of immunopeptide groups identified, thus improving the efficiency of the experiment; and the reagent is cheap and easy to obtain, thus the method has low cost, is suitable for large-scale or even industrial use, has high universality, and the like.

The invention discloses a metal phosphate catalyst as well as a preparation method and application thereof in Friedel-Crafts reaction. The catalyst is composed of transition metal ions and phosphate ions, the molar ratio of phosphorus to the transition metal elements is 1: (0.5-7), the total acid amount of the catalyst is in positive correlation with the catalytic activity, and the higher the total acid amount is, the better the reaction effect is. The preparation method comprises the following steps: dissolving a transition metal soluble salt in deionized water, adding a phosphate aqueous solution, stirring to generate a precipitate, dropwise adding nitric acid to dissolve the precipitate, adding urea to obtain a mixed solution, and carrying out hydrothermal reaction, washing, suction filtration and drying to obtain a finished product. During application, the catalyst, phenol and alcohol are put into an intermittent reaction kettle, nitrogen is introduced to maintain stable pressure, heating and stirring reaction are performed, and an alkylphenol product is directly obtained. The catalyst is excellent in catalytic performance, mild in reaction condition and convenient to operate, the alcohol conversion rate and the selectivity of target alkylphenol can be effectively increased, meanwhile, the high conversion rate of acyl chloride is achieved in the acylation process, the process economy is improved, and an efficient and feasible technical scheme is provided for the Friedel-Crafts reaction.

The wind power tower drum door structure comprises a door frame, a door plate, an anti-deformation frame, a blocking edge, a double-sealing structure and a pressing mechanism, one side of the door plate is hinged to the door frame, the anti-deformation frame is arranged on the inner side face of the door plate, a circle of bent edge bent towards the inner side is formed on the outer edge of the door plate, and the double-sealing structure is arranged on the blocking edge. A circle of blocking edge is arranged on the inner circumferential face of the door frame, the bent edge abuts against the blocking edge when the door plate is in a closed state, a double-sealing structure is arranged between the bent edge and the blocking edge, a pressing mechanism is arranged between the other side of the door frame and the door plate, and the bent edge and the blocking edge are tightly attached and press the double-sealing structure through the pressing mechanism. The sealing effect is achieved. The utility model can effectively solve the problem that the tower door of the wind generating set is easy to deform and leak water.

This invention discloses an anti-burning foam fire extinguishing agent for lithium batteries and its preparation method, relating to the field of fire extinguishing agent technology. The anti-burning foam fire extinguishing agent for lithium batteries prepared by this invention mainly comprises a foaming agent system, a foam stabilizer, and a heat-absorbing material. The foaming agent system contains sodium perfluorocrown ether sulfonate, the foam stabilizer is modified silica, and the heat-absorbing material contains modified microcapsules. The anti-burning foam fire extinguishing agent for lithium batteries prepared by this invention exhibits good foam stability and fire extinguishing performance.

This invention discloses a biological treatment method and apparatus for oily sludge, relating to the field of oil and gas field development. It is achieved through the following steps: Hot water A is added to oily sludge A, and the mixture is stirred to facilitate sludge flow and remove impurities and large-particle sand from the sludge; the resulting oil-sludge-water mixture is added to flotation water B, stirred, and then the surface crude oil components are collected using a flotation device. This process is repeated 12-18 times, and the wastewater is discharged, with sludge slurry B reserved for later use; sludge slurry B is then injected into flotation water C, heated, and saturated with aeration. Flotation is performed every 8-12 hours, collecting the upper layer of crude oil components, discharging the middle wastewater, and leaving sludge C at the bottom; the oily sludge treatment is completed in 5-7 days. The composite biological agent system used in this invention is non-toxic, non-corrosive, biodegradable, and does not produce secondary pollution, making it environmentally friendly. Its treatment conditions are mild, do not involve high temperature or high pressure, are safer, and have a shorter treatment cycle and higher efficiency.

The present application belongs to the technical field of material chemistry and environmental governance, and discloses a plant decomposition type deodorant formula and a configuration method. In view of the defects of the existing deodorization technology, such as secondary pollution, slow effect, only masking odor, insufficient product stability and the like, the present application uses tea polyphenol extract, yucca extract, grape seed extract, various plant essential oils and other pure natural plant extracts as raw materials, does not contain chemical synthetic additives, and is prepared through a standardized process of precise control of constant temperature environment, grading stirring speed, step-by-step feeding and reaction time. The deodorant can target decomposition of various foul-smelling molecules, has the effects of bacteriostasis and oxidation resistance, is completely deodorized, has strong product stability, is safe and non-irritating, has no secondary pollution, and can be widely applied to foul odor treatment in multiple scenes such as livestock breeding, garbage treatment, sewage treatment, public environment and the like.

The application discloses a single-component dealcoholized sealant and a preparation method and application thereof. The single-component dealcoholized sealant comprises the following raw materials in parts by mass: 80-120 parts of alkoxyl-terminated polydimethylsiloxane; 40-70 parts of surface-modified silica powder; 10-40 parts of flame retardant; 3-12 parts of flame retardant synergist; 3-12 parts of fumed silica; 5-40 parts of plasticizer; 0.5-10 parts of crosslinking agent; 0.5-10 parts of catalyst; and 0.5-10 parts of adhesion promoter. The structural formula of the alkoxyl-terminated polydimethylsiloxane is shown as formula (I): (R1O)3SiCH2CH2[(CH3)2SiO]nSi(CH3)2CH2Si(OR2)3 n Formula (I), wherein R1 and R2 are independently selected from C1-C10 alkyl, and n is 800-2200. The sealant has good storage stability, low hardness and high elongation, low viscosity, good extrudability, no corrosion to PC, fast curing speed, low density and good flame retardancy.

The utility model discloses a kind of cleaning devices for transmission overhead ground wire, it is related to ground wire maintenance technical field, solve the technical problem that current technical scheme cannot automatically clean cable, including mainframe, the mainframe is provided with guide sleeve, slidingly installed guide rod in the guide sleeve, the guide rod one end is fixedly installed with telescopic block, the mainframe is rotatably installed with upper connecting rod, left connecting rod and right connecting rod, the other end of the upper connecting rod is rotatably installed with upper rolling brush, the utility model realizes the full automation cleaning of ground wire, compared with the limitation of manual cleaning or traditional device, the automation design makes that cleaning efficiency greatly improves, while reducing the error caused by manual operation or environmental factor, ensure that ground wire surface is cleaned without omission, improve work quality, effectively solve the technical bottleneck that current technology cannot realize automatic cleaning.

The present application belongs to the technical field of temperature control, and particularly relates to a temperature control liquid for coal-based Fischer-Tropsch synthesis hydrocarbon as well as a preparation method and application thereof. The temperature control liquid mainly comprises coal-based Fischer-Tropsch synthesis hydrocarbon, or the temperature control liquid mainly comprises coal-based Fischer-Tropsch synthesis hydrocarbon and liquid polyolefin. The distillation range of the coal-based Fischer-Tropsch synthesis hydrocarbon is less than or equal to 350 DEG C. The main component of the coal-based Fischer-Tropsch synthesis hydrocarbon is isomeric alkanes and normal alkanes with carbon number of 12-24, wherein the isomeric alkanes account for less than 90% of the total mass, and the normal alkanes account for more than 10% of the total mass. The kinematic viscosity of the coal-based Fischer-Tropsch synthesis hydrocarbon is less than or equal to 2.5 mm 2 / s at 100 DEG C, and 2.0-6.0 mm 2 / s at 40 DEG C. The kinematic viscosity of the liquid polyolefin is less than or equal to 8.0 mm 2 / s at 100 DEG C, and 2.0-20.0 mm 2 / s at 40 DEG C. The temperature control liquid has the characteristics of low density, low electrical conductivity, low kinematic viscosity and high heat conduction efficiency.

The invention discloses a novel aluminum etching solution, and belongs to the technical field of semiconductor packaging. The etching liquid comprises the following components in percentage by mass: 10%-50% of phosphoric acid, 1%-10% of an oxidizing agent, 1%-10% of a buffering agent, 0.01%-1% of a catalyst, 0.01%-1% of a complexing agent and the balance of water. Through the synergistic effect of the catalyst and the oxidizing agent, the etching rate and stability are ensured while the content of phosphoric acid is reduced, and the problems that an existing high-concentration phosphoric acid system is serious in pollution and rapid in rate attenuation are solved. The etching liquid is uniform in etching effect, free of precipitation, high in process adaptability and suitable for high-precision etching of aluminum / aluminum alloy layers in the field of semiconductor packaging, and has remarkable environmental protection benefits and industrial application value.

This utility model discloses an ammonia waste gas purification device, including a main body, an absorption mechanism, a dehydration mechanism, and a treatment mechanism. The absorption mechanism includes an air inlet pipe and a barrier plate, the dehydration mechanism includes a flow guide and a mounting frame, and the treatment mechanism includes a reflux component and a control valve. With the cooperation of the above mechanisms, this device utilizes the strong affinity of water for ammonia, enabling an ammonia absorption efficiency of over 90%. Furthermore, the spray system has a simple structure, low operation and maintenance costs, and is suitable for continuous operation scenarios. In addition, this device removes water mist particles, avoiding "white smoke" pollution, and prevents water droplets in the exhaust gas from carrying unabsorbed ammonia for secondary emission, thereby protecting downstream equipment (such as activated carbon towers, fans, etc.) from corrosion or blockage.

The utility model belongs to bearing steel pipe technical field, and disclose a kind of high-performance cold-drawn bearing steel pipe of full protection, including pipe material, the both ends of pipe material are provided with side seal protection component, pipe material is divided into matrix, outer protective structure and inner protective structure, the outer ring surface of matrix is provided with outer protective structure, the inner wall surface of matrix is provided with inner protective structure, side seal protection component includes side seal protection piece and the matching structure on pipe material, side seal protection piece is provided with installation cooperation head on the side away from pipe material, outer protective structure includes outer anti-oxidation coating, outer combined barrier layer and outer anticorrosive layer, outer protective structure includes inner anti-oxidation coating, inner combined barrier layer and inner anticorrosive layer, the utility model structure design compact and reasonable, bearing steel pipe can be comprehensively protected, can prevent foreign body scratch pipeline inner wall, can improve bearing production quality, can prevent the oxidation, corrosion of bearing steel pipe stored, can greatly improve bearing steel pipe storage time.

This invention relates to a method for the electrocatalytic oxidation of anisole to anisole sulfoxide using iron-based complexes, belonging to the fields of homogeneous catalysts and electrocatalytic oxidation technology. The invention utilizes an iron-based complex formed by coordination between a tetraamide macrocyclic ligand (TAML-H4) and metallic iron as a homogeneous molecular catalyst, with water as the sole oxygen source, to construct an electrocatalytic anisole oxidation system. Through the synergistic effect of the catalyst and water, a proton-coupled electron transfer and single-electron oxidation process occurs at the anolyte, resulting in the loss of two electrons and two protons to generate a high-valence iron-oxygen active intermediate [Fe]. Ⅴ (O)(TAML)] – This invention achieves highly efficient and selective oxidation of anisole, generating the high-value-added product benzyl sulfoxide at the anode. It eliminates the need for additional strong oxidants, employs mild reaction conditions, boasts high atom economy, and is environmentally friendly, making it suitable for the green conversion of sulfides in the synthesis of fine chemicals. This provides a feasible pathway for the industrial production of sulfoxide compounds.

The invention relates to the field of sodium-ion batteries, and discloses an electrolyte composition, a sodium-ion battery electrolyte and a sodium-ion battery. In order to solve the problems of poor high-temperature cycle performance and storage performance of a sodium ion battery in the prior art, the invention provides the electrolyte composition, the composition comprises an additive composed of cyclic carbonate, anhydride and a sulfonic acid compound, so that both an SEI membrane and a CEI membrane in the prepared sodium ion battery have better stability, and the service life of the sodium ion battery is prolonged. Therefore, the material has excellent high-temperature cycle performance and storage performance.

The utility model provides a high-flexibility STP cable for a vehicle. The high-flexibility STP cable sequentially comprises twisted-pair wire cores, a metal shielding layer, a shielding braid layer and a sheath from inside to outside, and the shielding braid layer is formed by weaving an Alu Coat aluminum coating basalt fiber shielding braid layer on the surface of the metal shielding layer, and adopts 24 ingots and 10 Alu Coat aluminum coating basalt fiber conductors with the monofilament diameter of 0.23 [mu] m to be uniformly attached to the surface of the metal shielding layer. The wire core is composed of seven tinned copper conductors and a foamed PP insulating layer, wherein the maximum diameter of each tinned copper conductor is 0.16 mm, and the outer diameter of each tinned copper conductor is 1.3-2.6 mm. And the sheath is made of a TPU (Thermoplastic Polyurethane) material. The utility model provides the high-flexibility STP cable for the vehicle, which is light in weight, low in cost and stable in structure.

This invention relates to the field of oilfield chemistry, specifically to a plugging agent, its preparation method, and its application. The plugging agent comprises the following components by weight percentage: 10-25% amide compound, 15-25% ester compound, 5-50% co-solvent, 5-50% shale inhibitor, and 5-50% drainage aid. A method for preparing the plugging agent involves the optimized synthesis of conventional amides and small-molecule esters, introducing hydroxyl groups and hydrogen-bonding groups to maintain good permeability, dissolution and dispersion capabilities against plugging materials, improve water solubility, and further enhance operational safety by lowering the flash point. The plugging agent system not only has a flash point above 90℃, ensuring safety during use in natural gas wells, but also maintains stable performance in high-temperature environments up to 150℃ at the bottom of the well, meeting the stringent conditions of deep shale gas extraction and providing strong support for the development of deep oil and gas resources.

This invention relates to the field of microwave dielectric materials technology, and provides a niobium pentoxide-doped zinc borosilicate microcrystalline glass and its preparation method. This invention reduces the melting and volatilization of boron oxide and the formation of zinc borate by designing a low-boron zinc borosilicate microcrystalline glass formulation; and by introducing niobium pentoxide, utilizing Nb... 5+ The high electric field strength disrupts the original structural units in the glass structure, reconstructs the glass network structure, and thus modulates the dielectric properties of the glass-ceramic. Furthermore, the introduction of niobium pentoxide can regulate the glass crystallization characteristics, resulting in a glass-ceramic with a lower sintering temperature and better density. The results of the embodiments show that the dielectric constant of the niobium pentoxide-doped zinc borosilicate glass-ceramic obtained by sintering at 925℃ for 30 min is in the range of 4.4–6.1, and the dielectric loss is in the range of (0.48–5.36) × 10⁻⁶. ‑3 (between 1MHz)

When a thermocouple for aluminum-titanium-boron production needs to be protected, a protection sleeve body is manufactured and sintered through silicon carbide, so that the thermocouple protection sleeve can resist the corrosion of potassium fluoroaluminate by utilizing the characteristics of the material, thereby protecting the thermocouple from being corroded by the potassium fluoroaluminate. When the thermocouple protective sleeve needs to be replaced, the first sleeve body, the second sleeve body or the third sleeve body can be detached and replaced according to the corrosion conditions of the first sleeve body, the second sleeve body and the third sleeve body, so that the service life of the protective sleeve can be prolonged, the thermocouple does not need to be replaced every day, and the thermocouple is better protected; and parts on the protective sleeve can be replaced according to the corrosion condition, so that the production cost is reduced.

The application discloses a preparation method of a sulfur and phosphorus containing catalyst for liquid phase Beckmann rearrangement to caprolactam, and the preparation method comprises the following steps: (1) first, a phosphorus chloride is weighed and dissolved in a solvent to obtain solution A, and then a sulfur containing organic matter is dissolved in a solvent to obtain solution B; (2) subsequently, under microwave reaction conditions, A and B are mixed and placed in a reactor to perform reaction; (3) the catalyst precursor obtained in the step (2) is washed by a solvent and vacuum dried to obtain the catalyst; (4) the catalyst is used for catalyzing Beckmann rearrangement of cyclohexanone oxime to generate caprolactam. In the Beckmann rearrangement catalytic reaction of cyclohexanone oxime, the maximum conversion rate of the cyclohexanone oxime is 100%, and the maximum selectivity of the caprolactam is 99.5%.