17results about How to "Improve dissolution rate" patented technology

The invention discloses a triazine desulfurizer and a preparation method thereof, and belongs to the technical field of gas purification. The triazine desulfurizer is mainly prepared from the following raw materials in percentage by weight: 20 to 50 weight percent of triazine derivative, 10 to 15 weight percent of sterically hindered amine, 3 to 7 weight percent of stabilizer, 1 to 3 weight percent of synergist, 0.5 to 1.5 weight percent of penetrant, 0.5 to 1.5 weight percent of inhibitor, 1 to 2 weight percent of additive and the balance of water, the preparation method of the triazine derivative comprises the following steps: adding 2-(diphenylphosphino) ethylamine into a toluene solvent, adding a paraformaldehyde aqueous solution in batches under a stirring condition, and reacting for 2-8 hours to obtain the triazine derivative. According to the triazine desulfurizer and the preparation method thereof provided by the invention, the triazine derivative and the sterically hindered amine are taken as a host, and the stabilizer, the synergist, the penetrant, the inhibitor and the assistant are compounded, so that the scaling trend of the triazine desulfurizer in an oil and gas well can be slowed down, the dissolution rate of hydrogen sulfide and the mass transfer rate in a solution are increased, and the desulfurization reaction is promoted; the desulfurization effect and the desulfurization rate are improved, and meanwhile, a very good scale inhibition effect is also achieved.

The application provides a regeneration method of halogenated nitrobenzene continuous hydrogenation catalyst, and relates to the technical field of fixed bed halogenated nitrobenzene hydrogenation. The regeneration method mainly comprises the following steps: using alcohol, alkali, petroleum ether and ethyl acetate to preliminarily clean the bed layer, removing azo compounds and other pollutants on the surface of the catalyst by using the special properties of ionic liquids, and then completing the regeneration of the catalyst through the steps of pickling, precious metal solution treatment and drying. The application overcomes the defects of the prior art, has the advantages of simple operation, mild conditions and low cost, realizes the in-situ removal of surface impurities such as reaction intermediates and azo compounds on the catalyst surface without damaging the structure of the catalyst and disassembling the catalyst, further supplements the lost metal active components, and can effectively restore the catalyst activity.

The utility model belongs to the technical field of waste gas deodorization, and discloses a deodorization system which comprises a water purifier, an electrolytic generator, a small molecule generator, a micro-nano generation device and an ozone generator. The water purifier is provided with a first inlet and a first outlet; the first inlet is communicated with a water source through a water inlet pipe; the electrolyte generator is provided with a second inlet and a second outlet, and the second inlet is communicated with the first outlet; the small molecule generator is provided with a third inlet and a third outlet, and the third inlet is communicated with the second outlet; the micro-nano generation device is provided with a fourth inlet, a fourth outlet and an air inlet, and the fourth inlet is communicated with the third outlet; the ozone generator is provided with a gas outlet which is communicated with the gas inlet; the spraying device is provided with a sixth inlet and a sixth outlet, and the sixth inlet is communicated with the fourth outlet. According to the utility model, the ozone generator and the micro-nano generation device are combined, so that the generation amount of hydroxyl free radicals is increased, and the waste gas deodorization effect is improved.

This invention relates to the field of traditional Chinese medicine processing, and discloses a compound polysaccharide immune-enhancing composition and its preparation method and application. The composition comprises raw materials made from refined Polygonatum sibiricum polysaccharide, refined Dendrobium officinale polysaccharide, refined Lycium barbarum polysaccharide, and mogroside. The polysaccharides are mixed, and mogroside is added in batches with stirring and homogenization. The mixture is then dried under low temperature vacuum and granulated to produce the finished product. Mogroside molecules penetrate into the polysaccharide aggregates and reconstruct hydrogen bonds, establishing steric hindrance and rearranging charge distribution, inhibiting secondary aggregation of polysaccharides during rehydration and improving dissolution rate. Combined with step-by-step feeding and controlled moisture content, the polysaccharide conformation is solidified, preventing moisture absorption and clumping during storage and maintaining the flowability of the finished product. Purification of the polysaccharides reduces steric hindrance interference from impurities such as proteins and lignin, allowing active binding sites to be fully exposed and bind to corresponding receptors on the surface of different immune cells, thus initiating signal transduction pathways.

The invention relates to the field of paint spraying, in particular to a curved surface paint spraying boundary technology which comprises the following steps that S1, a first color layer is sprayed to a curved surface structure; s2, removing the first color layer on the second side of the color block boundary; s3, spraying a release interlayer on the curved surface structure, wherein the release interlayer is sprayed on the second side of the color block boundary and the surface of the first color layer; s4, removing the release interlayer on the second side of the color block boundary; s5, spraying a second color layer on the curved surface structure, wherein the second color layer is sprayed on the second side of the color block boundary and the surface of the release interlayer; and S6, removing the release interlayer so as to remove the second color layer sprayed on the surface of the release interlayer, and respectively forming a first color block and a second color block on the first side and the second side of the color block boundary. The multi-color paint spraying device has the effect of conveniently carrying out boundary multi-color paint spraying on the curved surface structure.

The invention relates to the field of solid waste resource utilization, in particular to a coal-based solid waste treatment and high-value utilization method. The coal-based solid waste treatment and high-value utilization method comprises the following steps: carrying out thermal oxidation on lignite to obtain oxidized lignite; mixing the oxidized lignite with a chemical activator dispersion liquid, and carrying out a solvothermal reaction to obtain a turbid liquid; carrying out solid-liquid separation on the turbid liquid to obtain filter residues and filtrate; calcining the filter residues to obtain a medium element compound fertilizer; and adding an acidic solution into the filtrate to adjust the pH to be acidic, thereby obtaining the humic acid. According to the method, the humic acid is prepared, meanwhile, the medium element compound fertilizer is prepared from the residues, the process route is improved, the economic benefit is greatly improved, and high additional value and multi-path resource utilization of the lignite solid waste are achieved.

The utility model aims to provide suspension high-shear dispersion preparation mixing equipment which comprises a dispersion machine, a stirring disc is arranged at the bottom of a main shaft, and the stirring disc comprises a second dispersion disc positioned at the bottom end of the main shaft, and a middle guide paddle and a first dispersion disc which are positioned above the second dispersion disc. The utility model relates to the technical field of mixing equipment, and adopts a multi-stirring impeller which combines a first dispersion disc and a second dispersion disc and is provided with a middle guide paddle between the first dispersion disc and the second dispersion disc, so that the stirring mode of a traditional single rectangular tooth dispersion impeller is changed; and the solution is rolled to the upper part by the second dispersion disc to be in contact with the first dispersion disc for secondary shearing. After secondary shearing, the particle size can be further refined, and the distribution is more uniform, so that the dissolution speed and bioavailability of the medicine are improved, and the curative effect of the medicine is ensured. Compared with the traditional equipment that the single-time stirring time is more than 15 minutes, the equipment disclosed by the utility model can obviously reduce the single-time stirring time.

This invention belongs to the field of medicinal chemistry, specifically relating to a crystalline form of lasmidetane-1-hydroxy-2-naphthoic acid and its preparation method. The crystalline form exhibits characteristic peaks at least at 10.24±0.2°, 14.65±0.2°, 21.53±0.2°, 21.98±0.2°, 23.70±0.2°, 26.44±0.2°, and 27.09±0.2° in its 2θ X-ray diffraction pattern under Cu-Kα radiation. The crystalline form consists of two molecules of lasmidetane and two molecules of 1-hydroxy-2-naphthoic acid as its basic unit. This crystalline form improves the solubility of lasmidetane, solving the problem of limited formulation development due to its low solubility. It is suitable for the development of various formulations, providing a foundation for improving drug efficacy and patient compliance.

This invention relates to the field of precious metal recycling technology and provides a method for recovering rhodium from rhodium-containing waste residue. The method includes the following steps: (1) roasting the rhodium-containing waste residue to obtain rhodium ash; (2) reacting the rhodium ash with a treatment agent, followed by filtration and drying, wherein the treatment agent is selected from at least one of alcohol and N,N-dimethylformamide; (3) subjecting the treated rhodium ash obtained in step (2) to a hydrogen reduction reaction under a hydrogen-containing gas atmosphere to obtain reduced rhodium ash; and (4) dissolving the reduced rhodium ash with an acid solution. The method of this invention is simple to operate, highly efficient, with minimal rhodium loss, and a yield greater than 96.9%.

This invention relates to the field of reaction vessel technology, specifically to a selective dissolution reactor and method for precious metal-containing waste based on a closed-loop, ultrasonically enhanced process. The reactor includes a closed dissolution reactor for containing a reaction mixture of precious metal-containing materials and dissolving reagents in a closed environment; a composite enhanced dissolution mechanism including a mechanical stirring assembly and an ultrasonic generator assembly fixed to the side wall or bottom of the closed dissolution reactor; a temperature control system thermally coupled to the closed dissolution reactor; and a modular tail gas treatment system, comprising one or more stages of alkaline scrubbing, catalytic oxidation, and precious metal collection units arranged in series. By employing a three-stage series tail gas treatment system: a primary 7%–9% NaOH solution alkaline scrubbing unit absorbs acid mist; a secondary rare earth catalyst catalytic oxidation unit oxidizes harmful gases; and a tertiary precious metal collection unit recovers precious metal aerosols; this represents a significant improvement over traditional single-stage alkaline scrubbing.

The utility model relates to the technical field of agricultural irrigation, in particular to an intelligent water and fertilizer integrated precise irrigation device which comprises a base, a water and fertilizer mixing barrel, a stirring barrel, a pesticide storage barrel, a smashing device, a mixing device and a moving device. The crushed fertilizer falls into a stirring barrel, an intelligent control module controls a stirring device to start working, the fertilizer and a proper amount of water are fully mixed to form a uniform water and fertilizer solution, and then the preliminarily mixed water and fertilizer solution is conveyed into a water and fertilizer mixing barrel through a first pump body; a water-fertilizer solution and water are mixed through the mixing device, and the mixed water-fertilizer mixed solution is conveyed to the flow dividing pipe through the water outlet pipe under the pressure action of the second pump body and finally is uniformly applied to crops through the multiple sets of irrigation heads.

The application provides a compound omeprazole dry suspension and a preparation method thereof, and relates to the technical field of pharmaceutical preparations.The compound omeprazole dry suspension comprises the following raw materials: omeprazole, sodium bicarbonate, magnesium silico-aluminate, hard stearic acid modified hydrotalcite, low acyl gellan gum, hydroxypropyl methyl cellulose and trehalose.The application provides a compound omeprazole dry suspension and a preparation method thereof, and the compound omeprazole dry suspension with specific particle size is prepared through specific proportioning of auxiliary materials and a specific preparation process, and the stability and solubility are significantly improved.

This utility model discloses a hydrogen-rich water device with adjustable hydrogen-water mixing, including a pure water tank, a pure water circulation pump, an electrolyzer, a gas-water separator, and a buffer tank. The electrolyzer and gas-water separator are equipped with an anode, a cathode, and a proton exchange membrane. A motor mounted on the buffer tank drives a high-pressure hydrogen dissolving rod to move left and right. Components such as the insertion plate and assembly plate have specific connections and are equipped with sealing sleeves to prevent interference. This device has dual channels for electrolyzing water and drinking water, allowing the human body to drink different water qualities through a series of processes, improving its practicality. Furthermore, the reciprocating motion of the high-pressure hydrogen dissolving rod driven by the motor increases the contact area between hydrogen and water, forming a flow path and vortex, improving the hydrogen dissolution speed and efficiency, resulting in a more uniform hydrogen distribution, reducing concentration gradients, and improving the quality of the hydrogen-rich water and the overall quality of the device.

The invention discloses a two-in-one water-based rubber treating agent, which is prepared from the following raw material components in parts by weight: 100 to 150 parts of water-based polyurethane dispersion, 60 to 90 parts of water-soluble solvent, 1 to 5 parts of emulsifier, 1 to 5 parts of humectant and 1 to 5 parts of powder B, wherein the powder B is one or two of trichloroisocyanuric acid and sodium dichloroisocyanurate. The VOC is reduced, glue does not need to be coated after rubber treatment, direct attachment can be achieved, the glue coating process is simplified, and use is convenient. According to the invention, the water-soluble solvent is added, so that the trichloroisocyanuric acid has an excellent dissolution rate, the emulsifier and the humectant are added to act together, so that the emulsion has good stability when in use, and the storage stability can reach 6 months at the same time. And a water-based hardening agent can be added according to performance requirements, so that the rubber treatment agent has excellent aging resistance and hydrolysis resistance.

The application provides a mixed dispensing structure, a dispensing assembly and a washing machine. The washing machine comprises a washing tub. The mixed dispensing structure comprises a mixing cavity and a negative pressure suction structure. The mixing cavity is internally provided with a mixing chamber having a first liquid inlet, a second liquid inlet and a liquid outlet. The first liquid inlet is adapted to transport a laundry treatment agent, and the second liquid inlet is adapted to introduce water for mixing. The negative pressure suction structure is internally provided with a negative pressure cavity having a suction port, a return air port and a dispensing port. The suction port is in communication with the liquid outlet. The return air port and the dispensing port are both adapted to be in communication with the washing tub. The negative pressure cavity draws the mixed liquid through the suction port and dispenses the mixed liquid into the washing tub through the dispensing port. The return air port is adapted to suck air in the washing tub, so that the mixed liquid is mixed with the air and then dispensed into the washing tub, or the return air port is adapted to dispense the mixed liquid overflowing from the negative pressure cavity into the washing tub. The mixed dispensing structure can avoid the safety hazard problem caused by the overflow of the mixed liquid from the return air port.

The utility model relates to the technical field of industrial environmental protection, in particular to a wet-type limestone / lime-gypsum method two-stage circulation desulfurization device which comprises a desulfurization tower and further comprises a liquid accumulation disc arranged in the desulfurization tower and used for dividing the desulfurization tower into a lower circulation desulfurization area and an upper circulation desulfurization area. The pH value in the lower circulating desulfurization area is 4.0-5.0, the pH value in the upper circulating desulfurization area is 5.5-6.0, and a lower slurry spraying layer is arranged in the lower circulating desulfurization area. According to the utility model, a relatively independent double-circulation desulfurization system is formed in one desulfurization tower, and the desulfurization of flue gas is jointly completed by the double-circulation desulfurization system. And a single-tower double-region desulfurization system solves the problems that the pH values of slurry required by absorption and oxidation are different, the pH value of slurry for absorbing acid gases such as SO2 is higher and is about 5.5, and the pH value of an oxidation crystallization region is required to be lower than 5.0, so that the effects of improving the desulfurization rate and improving the utilization rate of an absorbent are achieved by using the double-region method.

The utility model discloses production equipment for trace elements in water liquid, which comprises a mixing mechanism and a feeding mechanism assembled at the top of the mixing mechanism, the mixing mechanism comprises a tank body, a cover plate is fixedly mounted at the top of the tank body, a stock solution pipe is fixedly mounted below one side of the tank body, and a water outlet pipe is fixedly mounted below the other side of the tank body. And a stirring motor is fixedly mounted at the top of the cover plate. The utility model relates to the technical field of liquid trace element production. According to the production equipment for the water body liquid microelements, through cooperation of a discharging pipe, a discharging motor and a discharging auger, microelement particles can be directly discharged into the deep position where water is dissolved, so that the dissolving speed and the dissolving uniformity of the microelement particles in the water are improved, and through cooperation of a filter screen plate and a non-return plate, the water body liquid microelements can be completely dissolved. And the dissolved trace element water liquid can be filtered and screened when being discharged, so that the situation that undissolved particles contained in the liquid trace element are discharged is avoided, and the quality of the equipment during production of the liquid trace element is ensured.