23results about How to "Increase dissolution rate" 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 application belongs to the technical field of copper foil and particularly relates to a copper wire forming device, which comprises a spraying part provided with a liquid spraying opening, the spraying part being capable of spraying a drawing liquid to the copper wire through the liquid spraying opening; and an extrusion assembly arranged on one side of the spraying part, the extrusion assembly being capable of forming a protrusion on the surface of the copper wire sprayed with the drawing liquid. The application can relieve the drawing stress by spraying the drawing liquid before the protrusion is formed on the surface of the copper wire, so as to avoid the rupture of the copper wire and ensure the continuity of the copper wire winding disc.

The utility model relates to the technical field of gold ore analysis and test pretreatment, and discloses solid sample and reagent rapid mixing equipment which comprises a tank body, a first threaded mounting seat is arranged at the top of the tank body, a tank cover is in threaded connection in the first threaded mounting seat, a fixing pipe is fixedly connected in the tank cover, and a fixing sleeve is fixedly connected to the bottom of the fixing pipe. A fixed sleeve is arranged in the tank body, a sliding sleeve is connected to the outer wall of the fixed sleeve in a sliding manner, a lifting pipe is fixedly connected to the bottom of the sliding sleeve, and a second threaded mounting seat is arranged at the bottom of the lifting pipe. The solid sample is placed in the circulating flow channel in the tank body, so that the dissolution rate between the solid sample and the solvent is increased through rapid flowing between the solvent and the solid sample, meanwhile, uniform dissolution of the solid sample in the solvent is achieved through circulating flowing of the solvent, and the practicability of the equipment is improved.

This invention relates to the field of gray cast iron material preparation technology, and particularly to a method for preparing multi-alloy synergistically strengthened gray cast iron, comprising: adding steel raw materials to a smelting apparatus and heating to form molten iron; adding a chromium alloy to the molten iron, heating and holding at that temperature to form a basic mixture; determining the degree of furnace lining peeling based on the vibration frequency of the smelting apparatus, and determining the overheating risk level of the basic mixture based on the degree of furnace lining peeling; determining a target heating temperature based on the overheating risk level; determining the eddy current risk level based on the actual rotation speed; adjusting the stirring intensity during the smelting process based on the eddy current risk level; detecting the mixing ratio of the basic mixture and adjusting the amount of steel raw materials or the chromium alloy added to form a target solution; and simultaneously adding manganese nitride, alloyed tin, and ferrous sulfide to the target solution in a specified ratio to form multi-alloy synergistically strengthened gray cast iron. This invention improves the strength, toughness, fluidity, and resistance to solidification defects of gray cast iron.

This invention relates to the field of waste salt resource utilization and industrial waste gas treatment technology, and provides a skid-mounted micro-interface enhanced dual electro-displacement device for preparing ammonium alkali from mixed salts. The invention includes a selective electrodialysis unit, a micro / nano bubble generator unit, and at least two sets of parallel multi-chamber dual electro-displacement units. The selective electrodialysis unit separates a mixed salt solution of sodium chloride and sodium sulfate into sodium chloride and sodium sulfate stock solutions. This device integrates selective electrodialysis, the micro / nano bubble generator, and the dual electro-displacement unit in a skid-mounted configuration, forming an integrated continuous flow reaction system. This device achieves efficient and synergistic resource conversion of industrial waste salt and waste gas, producing sodium carbonate and ammonium salts with high purity that meet national standards. Furthermore, the process is energy-saving, environmentally friendly, and produces no secondary pollution.

According to the method for testing the purity of the metal rubidium, an organic alcohol-nitric acid solution system is adopted to dissolve a metal rubidium sample, organic alcohol can accelerate the dissolution rate of the metal rubidium sample, on one hand, the contact time of the metal rubidium sample and air can be greatly shortened, and the spontaneous combustion risk of the metal rubidium sample in the air is reduced; therefore, the safety of the whole test process is improved; on the other hand, the dissolution efficiency is improved, so that the possibility that the metal rubidium sample is exposed in the air for a long time is reduced, impurities in the air are prevented from being mixed into a sample system to interfere a test result, and the accuracy of the test result is improved; meanwhile, the nine impurity elements are accurately tested by combining two high-sensitivity and high-precision analysis means of inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry, and the accuracy of the test result is further guaranteed by calculating the total mass of the impurities and converting the purity of the metal rubidium.

This invention belongs to the field of sanitary ware technology and discloses a low-consumption vacuum toilet pulse flushing mechanism and sewage discharge method; it includes a toilet body, a water tank fixedly mounted on the toilet body, a toilet seat rotatably hinged to the toilet body, two independently detected infrared sensors fixedly mounted on the toilet body, and five water outlets arranged in a circumferential pattern on the inner wall of the toilet body's rim, each water outlet specifically arranged at a 35-degree angle to the inner wall of the toilet body; the five 35-degree circumferential water outlets spray a vortex thin water film with a water pressure of 0.35-0.5MPa, forming a full-coverage lubricating layer on the inner wall of the toilet in advance, preventing feces from directly adhering to the ceramic glaze from the source, eliminating the need for subsequent water replenishment and achieving water-saving pre-lubrication of the wall upon sitting. The water outlets are all designed with a 35-degree inner wall angle, and the water flow is sprayed out along the tangent of the inner wall of the rim, forming a closed-loop vortex water flow. Compared with vertical water outlets, the flushing coverage area of ​​the inner wall is comprehensively improved, and no dirt in the dead corners of the rim is missed.

This invention discloses a modified volcanic rock ultrafine composite admixture and its preparation method, belonging to the technical field of building materials and solid waste resource utilization. The admixture is composed of volcanic rock, S95 grade mineral powder, fluorogypsum, silica fume, lime powder, nano-alumina, triisopropanolamine, and polycarboxylate superplasticizer in a specific ratio. The invention also discloses its preparation method, including drying, weighing, and co-grinding the raw materials to a D50 of 7.0-8.0 μm. Through the synergistic activation effect among the components, especially the depolymerization of the volcanic rock vitreous network by F⁻ in the fluorogypsum, the adjustment of the calcium-silicon ratio between the mineral powder and volcanic rock, and the combined effect of nanomaterials and chemical additives, the early and late-stage activity of the volcanic rock is significantly improved, and the water demand is reduced. The obtained admixture has a 7-day activity index ≥85%, a 28-day activity index ≥88%, and a water demand ratio ≤108%, and can directly replace traditional mineral powder and fly ash in concrete, solving the problem of the scarcity of high-quality admixtures in western regions, and has significant economic and social benefits.

The utility model provides a kind of puerarin production extraction device, belong to puerarin production technical field, comprising: extraction mechanism, the one side of extraction mechanism is equipped with filter-pressing mechanism, the extraction mechanism includes extraction box, the surface fixedly connected with support frame in extraction box one side, the inner wall slidingly connected with sealing cover of support frame, the surface rotationally connected with rotating paddle of sealing cover, the upper surface fixedly connected with the pulverization box of sealing cover, the inner wall rotationally connected with two crushing rollers of pulverization box, the raw material is directly dropped into extraction box after being broken by crushing roller in the scheme, carry out efficient extraction under the stirring of rotating paddle, obtained mixture can be sent into filter-pressing mechanism for rapid separation by booster pump without artificial transfer, reduce the material transfer loss and time delay between production links, improve production efficiency, while effective crushing and stirring significantly increase the dissolution rate and extraction rate of puerarin.

This application discloses a sulfur-lead composite steel rod and its preparation method, as well as a steel pipe and soluble structural components, solving the technical problem that soluble bridge plugs in the prior art do not meet the high-pressure maintenance requirements of deep wells. The steel rod comprises the following chemical composition in parts by mass: Fe: 90-97.5 parts, C≤0.6 parts; S: 0.1-0.6 parts, Mn: 0.50-3.00 parts, Pb: 0.2-0.3 parts, O: 0.0010-0.0200 parts; the steel rod has composite inclusions; the composite inclusions include an inner core and a continuous or discontinuous outer shell distributed around the inner core, the inner core including manganese sulfide particles, and the outer shell including first lead particles; the steel rod includes a first region, a second region, and a third region arranged sequentially from the inside out; the average equivalent diameter of the composite inclusions in the first region is larger than that in the second region; the number of composite inclusions per square millimeter in any cross-section of the third region is greater than that in the second region. The sulfur-lead composite steel rod provided by this application has high strength and meets the high-pressure maintenance requirements of deep wells.

This invention discloses a method for cyclically separating waste positive electrode current collectors and positive electrode materials using NMP, comprising the following steps: adding the positive electrode sheet to an NMP solution, stirring, and sieving to obtain a positive electrode cleaning filtrate and aluminum foil; adding a flocculant to the positive electrode cleaning filtrate, stirring, and allowing it to stand for solid-liquid separation to obtain crude NMP solution and positive electrode material powder; adding a dehydrating agent to the crude NMP solution, filtering to remove solids to obtain a recovered NMP solution, which is then recycled for the separation of the positive electrode current collector and positive electrode material. This method reuses the NMP solution repeatedly, thus reducing costs and solving the problem of high costs associated with organic solvents. Furthermore, by introducing non-solvent water into the system, the thermodynamic stability of the system is altered, increasing the solubility of PVDF and accelerating the dissolution rate.

The invention relates to a polymer-coated self-assembled tripterine nano particle as well as a preparation method and application thereof. The nano particle comprises a nano aggregate and a polymer shell, wherein the nano aggregate is formed by self-assembling tripterine or medicinal salt of the tripterine, and the outer surface of the nano aggregate is coated with the polymer shell. According to the self-assembled tripterine nano particle disclosed by the invention, the problems of dissolution rate and solubility of the tripterine are effectively improved, and the biocompatibility of the tripterine is improved. In addition, the polymer layer coated on the surface of the nano particle enables the structure of the nano particle to be more stable, and the residence time of the tripterine in a respiratory tract system is effectively improved. Meanwhile, under the condition of using the same dosage, compared with tripterine monomer molecules or nanoparticles not coated with polymers, the product disclosed by the invention has a more excellent antibacterial effect.

This invention relates to the field of traditional Chinese medicine technology, specifically to a method for preparing concentrated Astragalus membranaceus pills and its application, including the following steps: (1) preparing a clear extract by alcohol extraction; (2) making pills by plastic molding; (3) drying the pills at a constant temperature. In the pill-making process, this invention selects 100-mesh Astragalus membranaceus mixed fine powder and adopts a mass ratio of clear extract to fine powder of 1:2. Since the 100-mesh powder has a uniform particle size and a moderate specific surface area, it can fully contact and bond with the clear extract, avoiding the problem of the pills being rough and cracked due to excessive particle size and the pills being too fine due to excessive moisture dissipation. The 1:2 ratio makes the soft material suitable for its softness and hardness, so that it will not be loose and difficult to form due to excessive powder ratio, nor will it cause adhesion and blockage of the mold due to excessive clear extract ratio. Combined with the gradient humidity soft material preparation technology, 60% purified water is added first and mixed evenly, and then the remaining water is added in two batches. Low-frequency vibration is applied simultaneously for mixing, which can make the internal humidity of the soft material uniform and the bonding force stable, thereby obtaining wet pills with smooth surface, round shape and no cracks.

This invention belongs to the field of feed additives, and particularly relates to a montmorillonite-co-loaded silymarin nanosuspension and its preparation method. The montmorillonite-co-loaded silymarin nanosuspension comprises montmorillonite, silymarin, liquid phospholipids, and chitosan, wherein silymarin is loaded onto the surface and interlayer of montmorillonite via liquid phospholipids, forming a nano-dispersion system with a particle size distribution of 150–320 nm. The montmorillonite-co-loaded silymarin nanosuspension and its preparation method provided by this invention achieve efficient loading, nano-dispersion, and liver-targeted delivery of silymarin.

This invention provides a method for preparing admixtures using iron tailings, relating to the field of admixture preparation technology. The method includes the following steps: (1) crushing the iron tailings and then ball milling them for the first time to obtain iron tailings powder, wherein the specific surface area of ​​the iron tailings powder is ≥325 m². 2 / kg; (2) Add an acidic modifier solution to the iron tailings powder and perform a second ball milling to obtain ultrafine powder, wherein the specific surface area of ​​the ultrafine powder is ≥900m². 2 / kg; (3) Add an active surface modifier and an active activator to the ultrafine powder, and perform a third ball milling to obtain the admixture. The prepared admixture has high activity and can directly replace part of the cement in situ to prepare concrete.

This utility model relates to the field of nasal wash salt dissolving technology, and in particular to a nasal wash salt dissolving device for nursing use, including a dissolving tank and a salt storage cylinder, with the salt storage cylinder positioned above the dissolving tank. An electromagnetic feeding valve is connected to the lower end of the salt storage cylinder, and a feeding pipe is rotatably connected and communicates with the lower end of the electromagnetic feeding valve. The feeding pipe rotatably penetrates into the dissolving tank. A V-shaped distributing pipe is provided in the upper part of the dissolving tank, and several sprinkling pipes are connected to the lower end of the V-shaped distributing pipe. A telescopic flexible hose connects the V-shaped distributing pipe and the feeding pipe. A rotary drive assembly is provided above the dissolving tank. This utility model facilitates a shorter time for uniformly stirring and dissolving the nasal wash salt. While the stirring blades rotate and stir the nasal wash salt, the cooperation of the stirring impact assembly and the elastic reset assembly also facilitates the up-and-down reciprocating shaking and stirring of the stirring blades, thereby more effectively improving the dissolving rate of the nasal wash salt.

The invention belongs to the technical field of medicines, and particularly relates to a silybum marianum composition for improving liver function and a preparation method thereof, the composition comprises quick-release cholagogic micro powder and slow-release liver-nourishing particles in a mass ratio of 1: (2-4); the quick-release cholagogic micro powder is prepared from curcumin, fructus aurantii immaturus flavone, a tanshinone extract and PVP K30 through ball-milling solid dispersion; the slow-release liver-nourishing particle is of a core-shell structure, a freeze-drying core of the slow-release liver-nourishing particle contains silymarin and schizandrin extract, and a glycyrrhetinic acid-phospholipid / chitosan oligosaccharide targeted coating and a medicinal acrylic resin coating are sequentially arranged on an outer layer of the slow-release liver-nourishing particle. According to the composition, through sequential synergy of'first defibering and then repairing 'and a liver targeting effect, the content of silymarin in liver tissue is remarkably increased, the silymarin is retained for a long time, and liver function impairment such as non-alcoholic fatty liver disease is effectively improved.

The invention discloses a wastewater multi-treatment system for pollution abatement, and belongs to the technical field of wastewater and waste gas treatment, the wastewater multi-treatment system for pollution abatement comprises an absorption water tank for ammonia gas absorption treatment, the absorption water tank is provided with a waste gas collecting and conveying gas channel, a heat exchange absorption cover is connected with a conversion absorption disc through a conversion device, and the conversion absorption disc is provided with a plurality of heat exchange channels. Residual hydrogen and ammonia gas which are not fully absorbed in the absorption water tank are sucked into the treatment system again through the concentration opening in the waste gas collecting and conveying gas channel by means of airflow suction force, circulation treatment is formed, and the hydrogen gathering cover on the top of the equipment naturally floats and is enriched by means of the physical characteristic that hydrogen is low in density. By arranging the valve capable of being controlled to be opened and closed, high-concentration hydrogen is guided into the combustion device and is mixed with air sucked in through the inclined oxygen inlet to be safely combusted, the explosion hidden danger caused by hydrogen accumulation in tail gas is thoroughly eliminated, purification and final treatment of hydrogen are achieved, and the safety of exhausted gas is ensured.

The utility model discloses a raw material mixing device for citric acid disinfectant production, which belongs to the technical field of mixing devices and comprises a raw material mixing barrel, a stirring shaft is rotatably connected in the raw material mixing barrel, a transverse stirring rod is arranged on the lower portion of the side surface of the stirring shaft, and a grinding mechanism is arranged in the raw material mixing barrel. The material grinding mechanism comprises a material grinding hopper which is lifted in a reciprocating manner and a receiving inverted hopper which is fixed on the stirring shaft; according to the utility model, the grinding mechanism is arranged, the grinding hopper reciprocates and ascends and descends along the inner wall of the raw material mixing barrel in the stirring process, and the grinding hopper is matched with the receiving inverted hopper to grind solid raw materials when descending, so that the granularity of the ground solid raw materials becomes smaller, and the grinding efficiency is improved. Therefore, the small solid particle raw materials penetrating through the material leaking holes in the receiving inverted hopper are in full contact with the solvent, so that the dissolution rate is improved, and meanwhile, the receiving inverted hopper in the rotating state conveniently controls the small solid particle raw materials to be uniformly added into the stirring chamber of the raw material mixing barrel.

This invention relates to a butylphthalide cationic nanoemulsion, its preparation method, and its application, belonging to the field of pharmaceutical technology. The butylphthalide cationic nanoemulsion comprises an oil phase, an aqueous phase, butylphthalide, an emulsifier, a co-emulsifier, an osmotic pressure regulator, and a cationic surfactant. The butylphthalide content in the nanoemulsion is 0.30%–2.50% by mass. The average particle size of the butylphthalide cationic nanoemulsion is 80–200 nm, the polydispersity index is 0.070–0.200, and the zeta potential is 20–30 mV. This invention solves the problems of poor water solubility and low stability of butylphthalide by preparing it into a nanoemulsion formulation; furthermore, by administering it via nasal administration, it meets the need for rapid neuroprotection in ischemic stroke.

This invention provides a method for preparing PdBr2 and its phosphine derivatives, and their applications, belonging to the field of chemical engineering technology. The method for preparing PdBr2 provided by this invention includes the following steps: dissolving palladium metal, nitric acid, and a catalyst, followed by baking to obtain an intermediate product; the catalyst contains chloride or sulfide ions; and mixing the intermediate product with a bromide-containing substance to undergo a precipitation reaction to obtain PdBr2. This invention uses a catalyst when dissolving palladium metal with nitric acid. The chloride or sulfide ions in the catalyst coordinate with Pd(II) to form a complex, significantly reducing the redox electrode potential of palladium metal, thereby accelerating the dissolution rate of palladium metal and inhibiting NO3-. ‑ The strong coordination with Pd(II) can be achieved by baking, which can break the Pd-NO coordination bond, and then the introduction of bromide ions can improve the yield of PdBr2.

The invention relates to the technical field of health-care products, in particular to an inula flower weight-losing and lipid-lowering capsule and a preparation method thereof. The inula flower weight-losing and lipid-lowering capsule comprises a capsule shell and a content thereof, the content is prepared by compounding inula flower lactone and L-carnitine-L-tartrate according to the mass ratio of (2 to 4): 1; the inula flower is extracted by adopting an ultrasonic-microwave synergistic extraction technology, and the dissolution rate and the extraction efficiency of active ingredients can be remarkably improved through mutual cooperation of the mechanical crushing effect of ultrasonic waves and the instantaneous heating effect of microwaves; furthermore, the purity of the inula flower lactone can be effectively improved by virtue of petroleum ether-ethyl acetate liquid-liquid extraction in combination with a three-stage column chromatography purification process of silica gel column chromatography-passing through a silica gel column-MCI column; the capsule product prepared by the invention not only has good weight-losing and lipid-lowering effects, but also has no side effect and higher safety, and is suitable for long-term administration.

The utility model discloses a flocculating agent production device of new pollutant subsides, relates to flocculating agent production field. The device includes agitator tank, and agitator tank is provided with multifunctional stirring spare and heating spiral pipe, and multifunctional stirring spare rotation is connected in agitator tank, and multifunctional stirring spare includes stirring rod, seal ring and feeding arc groove, and stirring rod is used for stirring solution, and seal ring fixedly connected in the top end of stirring rod, and feeding arc groove is set up on seal ring, and feeding arc groove is used for regularly feeding in agitator tank, and heating spiral pipe is used for heating solvent temperature in agitator tank. The device carries out fixed round -robin addition to the medicament of auxiliary addition and its required alkaline solvent, makes the safety problem to be eliminated while, the addition of medicament will not be complicated, in addition, through setting up heating pipe in the inside makes the temperature of jar to rise, and the raw material such as quaternary ammonium salt cation monomer or hydrophobic modified polymer improves the dissolution rate under high temperature.