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204results about How to "Improve solubility" patented technology

Probiotics plant solid beverage for treating hyperuricemia and gout

InactiveCN110623182Apreserve nutritional valuedisease resistantSkeletal disorderFood ingredient as taste affecting agentFreeze-dryingCelery seeds
The invention provides a probiotics plant solid beverage for treating hyperuricemia and gout. The solid beverage is prepared by mixing freeze-dried probiotics powder and plant extract with the addition of proper auxiliary materials. The solid beverage comprises the following components: the plant extract, the auxiliary materials and the probiotics, with the sum of the mass percentage of each component being 100%. The plant extract comprises celery seed powder, sophora flower bud powder and platycodon root powder. The invention has an obvious effect on lowering uric acid and relieving gout.
Owner:胡洁

Production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.
Owner:贵州盈丰农业发展有限公司

Liquid crystal composition, light absorption anisotropic film, laminate, and image display device

PendingUS20200172810A1High degree of alignmentExcellent solubilityLiquid crystal compositionsPolarising elementsSide chainLight absorbance
A liquid crystal composition contains a side chain type polymer liquid crystalline compound which can form a light absorption anisotropic film having a high alignment degree and has excellent solubility in a general-purpose solvent, a light absorption anisotropic film obtained using the composition, a laminate, and an image display device. The composition includes: a side chain type polymer liquid crystalline compound; and a dichroic substance, in which the compound is a copolymer having a repeating unit (1) containing a mesogenic group with a molecular weight of greater than 280 and a repeating unit (2) with a molecular weight of 280 or less, a content of the repeating unit (2) is less than 14% by mass with respect to a total mass of the compound, and a content of the dichroic substance is greater than 2% by mass with respect to a total solid content of the composition.
Owner:FUJIFILM CORP

A method for preparing an acid liquid system

ActiveCN119931626Breduce frictionIncrease communication distanceDrilling compositionPhysical chemistryOrganic chemistry
The present application provides a preparation method of an acid liquid system, comprising the following steps: adding 20-50 parts by mass of emulsified gelling acid into 50-80 parts by mass of gelling acid to obtain the acid liquid system; preferably adding 25-45 parts by mass of emulsified gelling acid into 55-75 parts by mass of gelling acid to obtain the acid liquid system.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A multi-stage, multi-angle, rapid diffusion oxygen-dissolving three-dimensional non-clogging microbubble aerator

This invention provides a multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator. An air inlet pipe and an air pipe are sequentially connected along the air inlet direction. A rapid microbubble cutting and diffusion oxygen dissolving unit is fitted outside the air inlet pipe. An inner cylinder and an outer cylinder are sequentially fitted outside the air pipe from the inside to the outside. The inner cylinder has a first inner cylinder section, a second inner cylinder section, and a third inner cylinder section sequentially along the air inlet direction. A medium-sized bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the first inner cylinder section, a large bubble cutting and diffusion oxygen dissolving unit is installed on the outer wall of the second inner cylinder section, and an air guiding unit is installed on the outer wall of the third inner cylinder section. An air diffuser unit is installed at the air outlet of the air pipe. This multi-stage, multi-angle, rapid diffusion oxygen dissolving three-dimensional non-clogging microbubble aerator effectively cuts air into microbubbles, effectively solving the problems of clogging and short lifespan of traditional aerators after long-term use, and is suitable for aerobic aeration treatment.
Owner:上海中耀环保实业有限公司

A high-absorption VOCs absorbent and a preparation method thereof

The application relates to the field of contaminated gas treatment, and particularly discloses a high-absorption VOCs absorbent and a preparation method thereof. The high-absorption VOCs absorbent comprises the following components in parts by weight: a solubilizing composition 20-30%; a cosurfactant 10-15%; solvent oil 40-50%; and water in the remainder. The solubilizing composition comprises component A, wherein the component A comprises polyoxyethylene nonionic surfactant and paeonol, and the weight ratio of the polyoxyethylene nonionic surfactant to the paeonol is 1: (0.1-0.2). The high-absorption VOCs absorbent and the preparation method thereof comprise the following steps: S1, uniformly mixing the solubilizing composition and the cosurfactant, adding water, and dropwise adding solvent oil to obtain the high-absorption VOCs absorbent. The high-absorption VOCs absorbent can be used for industrial absorption of solvents in waste gas, has the advantages of high absorption rate and an absorption amount of 141.5-145.7 mg / g after 50 hours of ventilation, and the preparation method has the advantages of few steps, simplicity and high efficiency.
Owner:ZEALGEM GLOBAL TENSILE FABRIC STRUCTURE CO LTD

A method for regenerating a continuous halogenated nitrobenzene hydrogenation catalyst

ActiveCN117816258Beasy to cleanEnvironmental cleaningCatalyst regeneration/reactivationSurface reactionPtru catalyst
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.
Owner:浙江友联化学工业有限公司 +1

Dosing device and exhaust gas treatment system

This application relates to a dosing device and an exhaust gas treatment system. The dosing device includes a dosing tank, a stirring mechanism, and a dosing pump. The dosing tank has a storage chamber for storing alkaline reagents. The stirring mechanism is located in the dosing tank and configured to stir the alkaline reagents in the storage chamber. The dosing pump has an inlet and an outlet. The inlet is configured to communicate with the storage chamber, and the outlet is configured to communicate with an exhaust gas treatment device. In this dosing device, the dosing tank can store alkaline reagents, and the dosing pump delivers these reagents to the exhaust gas treatment device to neutralize acidic gases to be treated in the device, thereby improving the device's ability to treat process exhaust gases. Furthermore, the stirring mechanism stirs the alkaline reagents in the storage chamber, which facilitates the dissolution of the solutes and maintains uniform concentration.
Owner:XIAMEN TOBACCO IND

High-stability water-in-oil PDRN emulsion and preparation method thereof

The present application relates to a kind of high stability water-in-oil PDRN emulsion and its preparation method, belong to the field of biotechnology;The preparation method includes the following steps: (1) PDRN enzymolysis: PDRN is added in DNaseI, supplement metal ion activates enzyme, when fragment enrichment shows <800bp, terminate enzymolysis reaction, obtain crude enzymolysis solution;(2) moderate molecular weight screening: pressurized ultrafiltration crude enzymolysis solution with ultrafiltration membrane, and screen out the target fragment of the permeate of molecular weight in 120-500bp;(3) water phase system optimization: 1,3-propanediol and ubiquinol are added in the permeate;(4) semi-continuous feeding gradient emulsification.The present application is by precise control PDRN molecular weight to take into account stability and solubility, optimize water phase component to realize system viscosity and transparency double standard, cooperate gradient emulsification to guarantee water-in-oil system stability, significantly improve product comprehensive quality and application value, with outstanding technical advantages.
Owner:瑞吉明(山东)生物科技有限公司

A method for the preparation of a pre-nucleated assisted low density thermoplastic elastomer foam

This invention relates to a method for preparing prenucleation-assisted low-density thermoplastic elastomer foam. The method involves feeding thermoplastic elastomer particles into the feed port of an extrusion foaming equipment, adjusting the temperature of each temperature zone of the screw, the screw speed, and the amount of foaming agent gas added to melt the thermoplastic elastomer particles and mix them with the foaming agent gas, then extruding and foaming to obtain a prenucleated sample with pores. The first foaming vessel is pre-set to a low temperature, and the prenucleated sample is transferred to it. A first low-pressure gas is introduced, and the sample is placed under low-temperature and low-pressure conditions for a second preset saturation time, followed by depressurization. The second foaming vessel is pre-set to a high temperature, and the prenucleated sample with sufficient foaming agent gas adsorbed is transferred to it. A second low-pressure gas is introduced, and the sample is placed under high-temperature and low-pressure conditions for a third preset saturation time, followed by depressurization and foaming to obtain low-density thermoplastic elastomer foam. The foam is then cooled to stabilize its cell structure.
Owner:FUJIAN XINRUI NEW MATERIALS TECHNOLOGY CO LTD

A surface degreasing device for gear manufacturing

This utility model discloses a surface degreasing device for gear production, relating to the technical field of gear production equipment. The utility model includes a cleaning tank, and further includes: an degreasing section disposed on the cleaning tank for holding the gears to be degreased; a rotating section disposed inside the cleaning tank for driving the degreasing section to rotate; and a stirring section located inside the cleaning tank for stirring the mixture of cleaning fluid and oil. After the cleaning fluid is poured into the cleaning tank, the gears to be degreased are poured into the degreasing section, and then the rotating section drives the degreasing section to rotate, ensuring uniform contact between the gears and the cleaning fluid. This utility model, by incorporating a rotating section, solves the problem in existing degreasing devices where it is inconvenient to rotate the gears in the cleaning fluid, resulting in uneven contact between the surface of each gear and the degreasing agent, thus affecting the overall cleanliness of the gears.
Owner:TANGSHAN BAISHENG MECHANICAL EQUIP CO LTD

Electrolyte solute, preparation method and application thereof

PendingCN122301670AImprove solubilitylow viscosityElectrolytic agentUnsaturated hydrocarbon
This application discloses an electrolyte solute, its preparation method, and its application. The electrolyte solute comprises an olefinic cyclohexene carboxylic acid compound obtained by the reaction of conjugated diene carboxylic acids. The conjugated diene carboxylic acid includes at least one compound having the structure shown in Formula III: wherein X and Y are each independently selected from H, -RO-COOH, substituted or unsubstituted C1-10 saturated hydrocarbon groups, etc., and at least one of X and Y is -RO-COOH; RO represents a directly bonded or C1-10 saturated hydrocarbon group. The electrolyte solute of this application, comprising an olefinic cyclohexene carboxylic acid compound with unsaturated hydrocarbon functional groups, can both improve the flash voltage of the electrolyte and maintain low viscosity and high conductivity.
Owner:SHENZHEN CAPCHEM TECH CO LTD

A coal tar hydrogenation reactor

ActiveCN224507090UEnable dynamic mixingImprove solubility
This utility model relates to the field of coal tar processing technology, specifically to a coal tar hydrogenation reactor, including a reaction tank. A catalyst box is located at the lower end of the reaction tank, and a mixing mechanism is installed inside the reaction tank. The mixing mechanism includes a first rotating rod and a stirring rod. The top end of the first rotating rod is fixedly connected to the output end of a motor. A spiral blade and a baffle plate are fixedly connected to the outer side of the first rotating rod. The motor drives the first rotating rod to rotate the spiral blade and baffle plate above the inside of the reaction tank to initially mix the coal tar and hydrogen. It also drives the stirring rod to rotate inside the catalyst box to stir the catalyst, achieving dynamic gas-liquid mixing, accelerating the dissolution of hydrogen in the coal tar, reducing gas phase residence time, enhancing reactor mixing efficiency, and simultaneously continuously agitating the catalyst to prevent catalyst caking, improve the utilization rate of active sites, and extend catalyst life.
Owner:XINJIANG HUIAN ENERGY CO LTD

A method for preparing highly soluble boron citrate

PendingCN122079762AImprove solubilityFine granularity
This application discloses a method for preparing highly soluble boron citrate, comprising the following steps: S1. Preparing a borate solution and a citrate source solution separately; the borate solution also contains hydrochloric acid; S2. Under microwave heating reaction conditions, slowly adding one solution to the other solution, adjusting the pH of the solution to 5-6 after the first reaction time, and then continuing the reaction for a second time; S3. Heating and concentrating; S4. Spray drying to obtain the boron citrate product. The method provided in this application utilizes the direct reaction of soluble citrate source and soluble borate, which is a simple process. A stable boron citrate solution is prepared by adding hydrochloric acid and adjusting the pH of the solution. After heating, concentration, and spray drying, a highly soluble boron citrate powder product with fine particle size and low heavy metal content is obtained.
Owner:ZHENGZHOU RUIPU BIOLOGICAL ENG CO LTD

A humic acid organic-inorganic compound fertilizer for slow release and improving fertilizer utilization rate and a preparation method thereof

PendingCN122254952Ahigh activityImprove fertilizer efficiencySolid/semi-solid fertilisersFertilizer mixturesSoil scienceGrowth promotion
The application belongs to the technical field of fertilizers, and particularly relates to a humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate and a preparation method thereof. The humic acid organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 22-30 parts of biogas residue, 35-55 parts of humic acid, 8-13 parts of fine columnar algae powder, 5-8 parts of urea, 12-17 parts of ammonium sulfate, 12-15 parts of superphosphoric acid calcium, 15-20 parts of potassium sulfate and 10-15 parts of slow release coating suspension. Test results show that the humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate prepared by the application can reduce the nitrogen and phosphorus release rates of the humic acid inorganic compound fertilizer, has better slow release effect, significantly promotes the plant height, stem diameter and root length of soybeans and corn, has obvious growth promotion effect, and has wide application prospect.
Owner:SHANXI JINFENG BIOTECHNOLOGY CO LTD

Embedding tissue hot flattening device

ActiveCN224416542Uavoid damageMonitor squeeze forceTissue processing techniqueTissue sample
The utility model relates to the field of embedding tissue processing technology, specifically disclose embedding tissue hot pressing leveling device, including hot pressing block, embedding mould, hot pressing rod, the outer surface fixed mounting of hot pressing block has heating block, hot pressing rod is connected with embedding machine. This embedding tissue hot pressing leveling device, the inside of embedding mould is put to the tissue sample handled well, can move through embedding machine starting hot pressing rod subsequently, let hot pressing rod can push hot pressing block and hot pressing vertebral body move, let hot pressing block and hot pressing vertebral body can be pushed into the inside of embedding mould and carry out hot pressing leveling to tissue sample, and keep a period of flattening time, can let hot pressing block and hot pressing vertebral body can exit embedding mould through the retraction of hot pressing rod subsequently, through the shape of hot pressing vertebral body and non -stick coating, when hot pressing vertebral body and embedding block are separated, embedding block will not be taken out embedding mould, ensure the fixation of sample, reduce the probability of subsequent slice inaccuracy.
Owner:CHANGZHOU HAOSILIN MEDICAL INSTR CO LTD

An anthracene-based fluorescent material, its preparation method and application

This invention provides an anthracene-based fluorescent material, its preparation method, and its applications. The anthracene-based fluorescent material is as shown in Compound I. The compounds of this invention utilize the electron-donating effect of aromatic amine units such as carbazole and the electron-withdrawing effect of phosphonyl / sulfonyl groups, effectively improving the electron and hole transport capabilities of the molecules. Furthermore, the steric hindrance effect, resulting in a distorted molecular configuration, can suppress intermolecular interactions, thereby reducing the device efficiency roll-off caused by concentration quenching. The thermal exciton mechanism enables these molecules to achieve an exciton utilization rate exceeding that of traditional fluorescent molecules by 25%.
Owner:THE HONG KONG POLYTECHNIC UNIV SHENZHEN RES INST

A low-temperature negative lead paste formulation and a method for preparing the same

This invention discloses a low-temperature negative electrode lead paste formulation and its preparation method. The raw materials are as follows by weight percentage: lead powder: 82%-88%, barium sulfate: 5%-12%, sodium lignosulfonate: 0.2%-1.0%, humic acid: 0.5%-1.0%, carbon black: 1%-2%, expanded graphite: 1%-2%, graphene: 0.5%-1.5%, and deionized water: balance. A mixture of spherical lead powder and flake lead powder (spherical powder accounting for 60%-70%) is used. The high specific surface area of ​​the spherical lead powder improves the wettability of the electrolyte, while the layered structure of the flake lead powder increases the porosity. The synergistic effect of these two materials increases the porosity of the negative electrode active material to 65%-70% (compared to approximately 55%-60% in traditional lead paste), accelerating the dissolution of lead sulfate and the diffusion of Pb²⁺.
Owner:TIANNENG BATTERY GRP (JIANGXI) CO LTD

A high-shear dispersion emulsifier

This utility model belongs to the technical field of dispersion and emulsification machines, specifically relating to a high-shear dispersion and emulsification machine, comprising: a frame, with a motor mounted on the top of the frame; a support frame, positioned below the top of the frame; a stator, positioned at the bottom of the support frame, with multiple through holes arrayed around its periphery; a rotating shaft, rotatably mounted on the support frame, with its top connected to the drive shaft of the motor and its bottom penetrating into the stator and housing a rotor; and an inner support assembly, tightly and movably mounted on the support frame. This invention addresses the problem in existing dispersion and emulsification machines where the shear dispersion components easily sway significantly during the dispersion and emulsification process, causing the rotating shaft to deflect and affecting the mixing effect.
Owner:SICHUAN JINGHONG PHARM CO LTD

A composition for alleviating, repairing testicular damage caused by heat stress and use thereof

ActiveCN119345212Brepair damagepromote recoveryLycoperseneChitosan nanoparticles
The application belongs to the technical field of medicine, and particularly relates to a composition for alleviating and repairing testicular damage caused by heat stress and application thereof. The composition for alleviating and repairing testicular damage caused by heat stress comprises the following raw materials: lycopene inclusion compound, ginsenoside Re, modified chitosan nanoparticles and a solvent. The amount of the modified chitosan nanoparticles is 10-15 wt% of the ginsenoside Re. The application innovatively designs a combination formula with lycopene and ginsenoside Re as the core. Both of the two main effective components in the formula are natural plant or traditional Chinese medicine extract, which effectively avoids the conflict between the medicinal properties of traditional Chinese medicines and has good biological safety. The composition can significantly repair the testicular damage caused by heat stress and accelerate the recovery after heat stress damage.
Owner:NANJING BIODE CO LTD

A fluorinated phenylanthracene-containing polyimide and a method for preparing the same

This invention discloses a fluorinated polyimide containing phenyl anthracene and its preparation method, belonging to the field of polymer materials technology. The fluorinated polyimide containing phenyl anthracene has the following molecular structure: by introducing asymmetric phenyl anthracene structural units with trifluoromethyl side groups, flexible ether bonds, and twisted non-coplanar structures into the polymer backbone, this polyimide possesses excellent comprehensive properties, such as superior solubility, heat resistance, optical properties, mechanical properties, crystallinity, dielectric properties, and hydrophobicity.
Owner:FUJIAN JUYUXIN NEW MATERIAL TECH CO LTD

Environment-friendly high-performance titanium alloy polishing composition as well as preparation method and application thereof

The invention discloses an environment-friendly high-performance titanium alloy polishing composition as well as a preparation method and application thereof, and relates to the technical field of metal material surface treatment. According to the environment-friendly high-performance titanium alloy polishing composition, the pH value of a basic system is adjusted to 9.5-10.0 through a pH adjusting agent; the base system comprises the following components in percentage by mass: 10-30% of silica sol, 3-4% of an anti-gel stabilizer (urea or methylurea), 2-3% of a heat transfer improvement and surface defect inhibitor (ethylene glycol or propylene glycol), 0.1-0.2% of a wetting leveling agent, 1-2% of an alcohol amine complexing agent and 0.5-1% of an aminopolycarboxylic acid chelating agent besides water. According to the environment-friendly high-performance titanium alloy polishing composition, on the premise that an oxidizing agent is completely abandoned, perfect balance of high stability, high polishing rate and excellent surface quality is achieved through unique formula design, and the environment-friendly high-performance titanium alloy polishing composition has the advantages of being environmentally friendly and high in safety.
Owner:HEBEI SIRIEN NEW MATERIAL TECH CO LTD

A 3D-printable all-inorganic perovskite flexible light-emitting gel, and a preparation method and application thereof

ActiveCN117510744BFix compatibility issuesImprove solubilityPhysical chemistryCesium bromide
The application discloses a 3D-printable all-inorganic perovskite flexible light-emitting gel and a preparation method and application thereof, and relates to the technical field of perovskite. The method comprises the following steps: dissolving cesium bromide in water to obtain a cesium bromide aqueous solution; adding photo-curing precursor components into the cesium bromide aqueous solution in a certain proportion, and stirring uniformly to obtain a photo-curing precursor mixed solution; obtaining a photo-curing composite hydrogel; obtaining a flexible high polymer gel containing cesium bromide; and performing a spontaneous crystallization reaction, and then performing heat treatment on the gel to remove residual solvents. The perovskite precursors with large solubility difference are introduced into the photo-curing base material in two steps, respectively, so that the compatibility problem of the perovskite and the flexible base material precursor is solved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

A laundry treating apparatus

ActiveCN224412139Uplay a cleaning rolefast flowWater flowEnvironmental engineering
Embodiments of the present application provide a laundry treating apparatus including a tub assembly and a circulation system. The tub assembly is provided with a laundry treating cavity and a drain opening communicating with the laundry treating cavity. The circulation system includes a drain pump having a first outlet and a water inlet, a drain passage communicating the drain opening with the water inlet, and a first passage having a water inlet end communicating with the first outlet and a water outlet end facing the drain passage. During the process of the drain pump pumping water into the first passage, the water in the first passage flows at a high speed, and the water flowing out of the water outlet end of the first passage has a flow interference effect on the water and the detergent in the drain passage, which is conducive to promoting the dissolution of the detergent in the drain passage. Since the drain passage communicates with the laundry treating cavity through the drain opening, the dissolved detergent will enter the laundry treating cavity along with the water through the drain opening to clean the laundry, thereby helping to improve the cleaning ratio.
Owner:WUXI LITTLE SWAN ELECTRIC CO LTD

A method for long-chain branching modification of rare-earth isoprene rubber and / or butadiene isoprene rubber

PendingCN122103413AStrong branching effectControllable branching reactionsActive polymerPolymer science
The present application relates to the field of polymer manufacturing, and particularly relates to a long-chain branched modification method of rare earth isoprene rubber and / or butadiene rubber, comprising the following steps: S1. performing solution polymerization of isoprene and / or butadiene and isoprene in a non-polar solvent in the presence of a rare earth catalyst to obtain a glue solution containing active polymer molecular chains; S2. when the conversion rate of the polymerization reaction reaches 95% or more, adding a compound branched modifier to the glue solution to perform a branched reaction; wherein the compound branched modifier comprises at least one of a chloride and an alkyl halide and at least one selected from ether compounds and tertiary amine compounds. The branched modifier used in the present application has a strong branching effect, and has good solubility so as to achieve uniform mixing at a molecular level in the glue solution, significantly alleviates the gel side reaction, reduces the gel content, narrows the molecular weight distribution, significantly improves the raw rubber performance, and improves the product uniformity.
Owner:ZHONGZHE (ZHEJIANG) POLYMER NEW MATERIALS CO LTD

A method for preparing 11-triglycerides by low-temperature acylation

PendingCN122079774Aavoid decompositionavoid carbonizationPreparation from carboxylic acid halidesPtru catalystLewis acid catalysis
This invention relates to the field of organic compound preparation technology, specifically a method for preparing 11-triglycerides of carbonate via low-temperature acylation. This method uses glycerol and undecanoyl chloride as raw materials, employing a synergistic system of a "composite acid-binding agent + Lewis acid catalyst," and combines in-situ dehydration technology and a stepwise heating strategy in a dual-solvent environment to achieve efficient synthesis. The specific steps include: under nitrogen protection, dissolving glycerol in a dichloromethane-toluene dual solvent, adding a composite acid-binding agent of pyridine and N,N-diisopropylethylamine, anhydrous zinc chloride catalyst, and 4A molecular sieve for in-situ dehydration; dropwise adding undecanoyl chloride at a low temperature of 5-10°C, followed by sequential heating to 30°C for 2-3 hours and then reacting at 50°C for 12-16 hours; and post-processing using a combined process of filtration-multi-stage extraction-membrane separation-column chromatography. This invention provides mild reaction conditions, effectively suppresses side reactions, produces high-purity products, increases molar yield, and reduces solvent toxicity and purification costs.
Owner:SHAANXI DIDU PHARM CHEM CO LTD

Hydrated crystalline form of lazertinib methanesulfonate and methods of making and uses thereof

The application relates to the field of pharmaceutical chemistry. The application relates to a hydrate crystal form of lazertinib monomethanesulfonate and a preparation method and application thereof. The hydrate crystal form of lazertinib monomethanesulfonate provided by the application has at least one of the following advantages: good stability, good solubility, good dissolution, low hygroscopicity, uniform particle size distribution, good morphology, good fluidity, good crystallinity, stable storage, avoidance of degradation, impurity increase, appearance change and crystal transformation during development and storage, simple and reliable preparation method, and great development value.
Owner:SOLIPHARMA

A method for removing nitrogen and phosphorus from sludge

The application provides a method for removing nitrogen and phosphorus in sludge, and relates to the technical field of sewage treatment. The method comprises the following steps: (1) sludge dewatering treatment; (2) sludge pretreatment; (3) hydrolysis acidification treatment; a mixture of divalent salt and trivalent salt is added in the hydrolysis acidification treatment, and it is unexpectedly found that the crystallinity of the layered double hydroxide formed by co-precipitation of the mixed salt solution is better, the specific surface area is larger, more carriers can be provided for microbial reproduction, the reproduction and metabolism of microorganisms are strengthened, and therefore the hydrolysis acidification efficiency of the sludge is better improved, and the nitrogen and phosphorus removal effects are obviously improved.
Owner:DASMART ENVIRONMENTAL SCI & TECH (BEIJING) CO LTD

Air-liquid mixing device, flushing device and toilet

A kind of gas-liquid mixing device, flushing device and closestool, including being provided with at least sequentially communicating first mixing chamber and second mixing chamber in liquid outlet direction, first mixing chamber is also communicated with first air inlet, and second mixing chamber is communicated with second air inlet and bubble outlet passage;It further includes air inlet channel, air inlet channel is communicated with first air inlet and second air inlet. When using, air enters first mixing chamber and foaming liquid are mixed to constitute preliminary mixed liquid by first air inlet;Preliminary mixed liquid is mixed again with the air entered by second air inlet, to form mixed liquid with numerous micro-bubbles. Compared with viscous foaming liquid, mixed liquid is larger and more delicate in volume, and has better flowability, can quickly form uniform and delicate foam with other liquid, so that less foaming liquid can achieve better foaming effect, keep foam solubility relatively stable, improve the use frequency of single bottle foaming liquid.
Owner:QUANZHOU KEFA SANITARY WARE

A residual gas safety processing mechanism for a gas production bottle

The application discloses a kind of bottle residual gas safety processing mechanism for gas production, it is related to gas processing technical field, including processing tank, the downward two sides of processing tank are respectively provided with the interface for residual gas supply and discharge, and the side of processing tank is fixedly connected with mounting bracket, and the inside of mounting bracket is fixedly connected with the liquid tank of containing filter liquid, and the inside of processing tank is fixedly connected with the filter plate for filtering gas.The bottle residual gas safety processing mechanism for gas production, the side of rotating ring is fixedly connected with driving plate, liquid tank inside water flows to rotating ring, will impact the driving plate of inclined arrangement, under the action of water flow impact force, rotating ring will be around its central axis stable rotation, in the rotating ring rotation process, with the rotation of rotating ring, its below spray pipe also rotates, so that filter liquid is evenly sprayed in the form of rotary spray in processing tank inside, expands the spray coverage, so that gas and liquid can be more fully contacted and mixed, improves the dissolution and washing effect of impurities in gas.
Owner:江苏宏仁特种气体有限公司