66results about How to "Loose particles" patented technology

The invention provides high-resilience antibacterial medical polyvinyl chloride (PVC) plastic and a preparation method thereof. The high-resilience antibacterial medical PVC plastic comprises, by weight, 100 parts of ultra-high molecular weight PVC resin, 40-80 parts of a plasticizer, 10-60 parts of an elastomer, 5-20 parts of an auxiliary plasticizer and 0.5-5 parts of a heat stabilizer. The invention relates to the high-resilience antibacterial medical PVC plastic which has good physical properties, chemical performances and biological properties, satisfies GB15593-1995 blood (liquid) transfusion device flexible PVC plastic related requirements and is medical PVC plastic with excellent resilience and antibacterial and bacteriostatic effects, and the preparation method thereof. The PVC plastic has the characteristics of excellent antibacterial property, bacteriostasis and resilience, shortens an ethylene oxide disinfection period and improves disinfection efficiency.

The invention discloses a preparation method of high-purity cerium hydroxide, comprising the following steps: taking liquid cerium nitrate as a raw material, hydrogen peroxide as oxidant and ammonia water as neutralizer, oxidizing trivalent cerium into tetravalent cerium in cerium nitrate solution in a weak acidic medium with the PH value being equal to 5 to 6 so as to form precipitate, then carrying out thermal decomposition, washing pressure filtration and drying on the precipitate to obtain high-purity cerium hydroxide product. The high-purity cerium hydroxide product prepared by the invention has high purification, wherein, the Ce ratio CeO/TREO is greater than or equal to 99.9%, the oxidation rate CeO<4+>/sigma Ce is greater than or equal to 97.0%, non-rare earth impurity magnesium oxide MgO is less than or equal to 2.5PPm, and the solubility of nitric acid is good. The process flow is short, the operation is convenient, and scale production is easy to be realized. The obtained Ce(OH)4 nitric acid is dissolved clearly, the oxidation rate of cerium is high, the content of non-rare earth impurities is low, thereby meeting the requirement of clients on quality of Ce(OH)4 products.

The invention relates to the technical field of rubber production, aiming to provide an improved nitrile rubber production process, which comprises polymerization, degassing and condensation. Raw materials including acrylonitrile, butadiene, desalinated and deoxidized water, condensed water and molecular weight regulators are fed into a polymerization position, convergence is carried out in a header pipe at the polymerization position, the converged mixture is pre-emulsified sequentially through a pipe pump and a pipe mixer, heat exchange is carried out through an ammonia-cooling heat exchanger for cooling, the cooled mixture, initiator emulsion and activator solution are sequentially fed into a plurality of reactors for polymerization to produce latex, the latex taken out of the reactorsand terminating defoamer solution are fed into a maturing reactor and are fully mixed when the rate of polymerization and conversion reaches 70 plus or minus 5 percent, and the mixture is then fed into a degassing tower to be degassed and into a condensation reactor for condensation. The problem of blockage of the heat exchanger can be avoided, the process is simple, the production process is stable and economical, the Mooney of rubber can be controlled easily, and the produced nitrile rubber has high quality.

The invention discloses an H acid waste water treatment method. The method includes the steps that 1, the pH of H acid waste water is adjusted to 2-4, then ferric salt or ferrous salt is added, after the temperature is raised to 40-60 DEG C, hydrogen peroxide is added, and a Fenton oxidation reaction is conducted; 2, the pH of a product of the Fenton oxidation reaction is adjusted to 8.5-11, flocculation and filtration are conducted sequentially, and treatment is completed. In step 1, the pH of the H acid waste water is adjusted to 2.5-3.5, the adding amount of the ferric salt or the ferrous salt is 0.2-2% the mass of the H acid waste water, the mass fraction of the hydrogen peroxide is 27-30%, and the adding amount of the hydrogen peroxide is 2-20% the mass of the H acid waste water. The H acid waste water treatment method is simple in procedure, low in cost and suitable for being applied and popularized in industry.

The present invention discloses a kind of re-mixed organic-inorganic fertilizer and its production process. The re-mixed organic-inorganic fertilizer is produced with incinerated domestic refuse, rape seed cake, tung seed cake, tea seed cake, hog bristles and hair, nitrogen fertilizer, fowl excrement, potassium sulfate, phosphate fertilizer, plant ash and vinegar. The fertilizer can increase the organic matter and trace element content in soil, and makes soil loose and black, and using domestic refuse as material can lower cost and eliminate environmental pollution.

The invention belongs to the technical field of mechanical dough kneading and relates to a dough kneading device, a dough kneading method and a noodle making machine. The dough kneading device provided by the invention comprises a water supply mechanism, a primary dough kneading chamber and a secondary dough kneading chamber, wherein a first stirring shaft is arranged in the primary dough kneadingchamber, and one end of the first stirring shaft is connected with a first power mechanism; the interior of the primary dough kneading chamber is divided into three mutually communicating stirring areas, namely a first stirring area, a second stirring area and a third stirring area sequentially, paddles are arranged in the first stirring area and the second stirring area, and a stirring rod is arranged in the third stirring area; at least one material inlet is formed in the primary dough kneading chamber and the material inlet communicates with the first stirring area; and the water supply mechanism comprises a water pipe, one end of the water pipe extends into the first stirring area by virtue of the material inlet, and the water pipe at the end is connected with a water atomization device. The dough kneading device can enable wheat flour to quickly absorb water and be thoroughly mixed with water and is helpful to form dough with proper expansion of gluten, loos particles and uniformcolor for high quality fine dried noodles.

The invention discloses a preparation method of licorice particles for livestock and poultry, comprising the following steps of: firstly taking licorice, placing it into an extraction pot to form a medicinal material layer, adding water and immersing, adjusting the operating temperature of the extraction pot to 60-80 DEG C for extraction, leading out parts of an extract from the bottom of the extraction pot during the extraction process and carrying out vacuum concentration while the concentration temperature is 50-70 DEG C, condensing steam generated by the concentration, returning the stream used as a new solvent into the extraction pot for permeating extraction of the medicinal material layer, continuously repeating for 2-3 hours, condensing to finally obtain a fluid extract, adding anhydrous glucose and maltodextrin or cyclodextrin and the fluid extract into a spray drying granulator, and carrying out granulation so as to obtain the licorice particles for livestock and poultry. According to the preparation method of the licorice particles for livestock and poultry, the two processes of licorice extraction and condensation are synchronously carried out so as to change a high-temperature decocting technology of a traditional extraction pot under pressure and at normal pressure. Therefore, energy can be saved by 0.3-0.5 time; the amount of a hydrosolvent is minimized by 0.5-1 time; the feeding amount is increased by 30-60%; extract yielding rate is raised by more than 10%; the storage process is minimized; and electric power energy is saved by more than 30%.

The invention relates to the technical field of high polymer materials, and discloses a preparation method of polyvinyl chloride resin special for chlorination. The preparation method comprises the steps of adding a water-containing PVC resin wet material centrifuged by a PVC polymerization production system into a closed container with a stirring function, adding a functional organic solvent, uniformly stirring and mixing, and carrying out freezing treatment, carrying out microwave heating on the frozen primary material at a low temperature, and drying to obtain the PVC resin special for chlorination. PVC resin wet material particles obtained through a water-phase polymerization method contain a large amount of water, the water becomes ice to expand the internal pore diameters of the PVCresin particles during freezing, the ice is sublimated into water vapor during microwave heating, the water vapor compresses the surrounding structures of the PVC resin particles at the early stage tobe closed, breaks through constraint of the PVC resin particles and outer membranes of the particles at the later stage and escapes rapidly. The resin special for chlorination is loose in particle structure, high in plasticizer oil absorption rate and large in specific surface area, can meet the production requirements of CPVC resin, and is more beneficial to chlorination reaction.

The present invention discloses a thickening component for improving swallowing disorders. The thickening component comprises the following raw materials in mass ratios: 350-450 parts by mass of hydrophilic gum, 100-250 parts by mass of starch and 350-450 parts by mass of maltodextrin. The raw materials are in the following mass percentages: 30%-45% of the hydrophilic gum, 10%-30% of the starch and 40%-60% of the maltodextrin. The thickening component uses the hydrophilic gum and starch at the same time, is synergistic by compounding, reduces costs, uses high viscosity of the hydrophilic gum and excellent water retention of the starch, avoids adhesion of only using the hydrophilic gum to increase high viscosity (IDDSI level 4), and at the same time avoids risks of viscosity level loweringdue to hydrolysis of starch by saliva. The product is liable to mix, fast to disperse and dissolve, fast in hydration speed, tasteless, good in stability and convenient to use.

The invention relates to a method for preparing a cobalt blue material for decorating ceramic. In the method, industrial pure chemical raw materials are adopted; and the method comprises the following steps of: mixing 22 to 45 weight percent of cobalt sesquioxide, 48 to 70 weight percent of aluminum sesquioxide, 0 to 10 weight percent of zinc oxide, 0 to 10 weight percent of magnesium carbonate and 0 to 4 weight percent of chromium sesquioxide; adding 2 to 4 weight percent of boric acid and 6 to 10 weight percent of nucleating agent and uniformly mixing to obtain a reactant; adding acetone in an amount which is 80 percent based on the weight of the reactant; and performing quick ball-milling, drying, baking at the temperature of between 1,100 and 1,200 DEG C, preserving heat, naturally cooling, grinding, cleaning and sieving to obtain the color material. In the method, a large amount of nucleating agent with a small grain size is added into the solid-phase reactant in advance to ensure that crystal simultaneously grows in and on the surface of the reactant, so the grain size of the color material is controlled well, the crystallization completeness is improved, the solid-phase firing temperature is reduced, the firing time is shortened, the acid resistance of the color material is enhanced, and the defects of the conventional solid-phase method for preparing the ceramic color material are overcome.

The invention relates to a high molecular polymer lubricant dispersing aid and a preparation method thereof which is scientific, reasonable, simple and practicable. The dispersing aid is mainly used for the lubrication of rubber brick cutting in the production process of high molecular polymer polyacrylamide and comprises ingredients according to the percentage by weight: 75-83% of light weight oil, 5-8% of emulsifier, 2-3% of stabilizing agent and 7-8% of solubilizing additive and 3-6% of surface active agent. Various ingredients are added into a reaction kettle for being stirred for 3-6 hours, the liquid becomes cylindrical fluid bundles by pressuring and injection and then the friction type contact among fluid causes the fluid to be fully blended, thus the dispersing aid is prepared. The dispersing aid is added into the polymerized polyacrylamide rubber brick to cause that the polyacrylamide rubber brick is quickly cut into small rubber bricks which are continously sent into a pelleting machine for fine granulation by a screw conveyor, thus small colloidal particles with the diameter of about 3mm can be obtained. The fast and effective cutting method ensures that the molecular weight is not reduced, and the obtained small colloidal particles are uniform, unwound and easy to be dried and has good fluidity.

The invention relates to the technical field of high polymer materials, and discloses a preparation method of PVC resin special for chlorination. The preparation method comprises the steps of adding awater-containing PVC resin wet material centrifuged by a PVC polymerization production system into a closed container with a stirring function, adding a functional organic solvent, uniformly stirringand mixing, carrying out microwave heating and drying on the uniformly mixed primary material, and obtaining the PVC resin special for chlorination. PVC resin wet material particles obtained througha water-phase polymerization method contain a large amount of water, the water is changed into water vapor during microwave heating, the water vapor compresses surrounding structures of the PVC resinparticles to be closed at the initial stage, breaks through constraint of the PVC resin particles and outer membranes of the particles at the later stage, and escapes rapidly. The resin special for chlorination, which is loose in particle structure, high in plasticizer oil absorption rate and large in specific surface area, is obtained, the production requirements of CPVC resin can be met, and chlorination reaction is more facilitated to be carried out.

The invention relates to the field of household appliances and discloses an automatic rice steamer. The automatic rice steamer comprises a top cover, a shell, an inner pot, a water container, heating devices, a rice water container, a water adding device and a first valve, wherein the bottom of the inner pot is arranged in the water container, hung in the air; a plurality of water leakage holes are formed in the inner pot and in the bottom surface or bottom surface and sides of the inner pot; the water container is arranged in the shell; a first connecting pipe is communicated with the bottom of the water container; the heating devices are matched with the water container and are used for heating the water in the water container; the rice water container is arranged below the water container and is communicated with the first connecting pipe; the water adding device is communicated with the water container by a second connecting pipe; and the first valve is arranged on the first connecting pipe. The rice steamer is suitable to daily use at home, can be used for steaming rice similar to the preparation method of traditional Zengzifan, and simultaneously can keep the fragrant, sweet and tasty rice water rich in nutrients.

The invention discloses a preparation method of indigowoad root and indigowoad leaf particles used for livestock and poultry. First, indigowoad root and indigowoad leaf are placed in an extraction tank, such that a medicine material layer is formed; the materials are soaked by using water; the working temperature of the extraction tank is regulated to 60-80 DEG C, and extraction is carried out; during the extraction process, a part of the extraction solution is fetched from the bottom of the extraction tank, and is subjected to vacuum concentration, wherein the concentration temperature is 50-70 DEG C; vapor generated by concentration is condensed and adopted as a novel solvent, and is delivered back to the extraction tank for carrying out percolation extraction upon the medicine material layer; the steps are repeated for 2-3h, and a fluid extract is obtained by concentration; anhydrous dextrose, maltodextrin or cyclodextrin, and the fluid extract are added into a spray-drying granulator for granulation, such that the indigowoad root and indigowoad leaf particles used for livestock and poultry are obtained. According to the preparation method of the indigowoad root and indigowoad leaf particles used for livestock and poultry, two processes which are the extraction and concentration of the indigowoad root and indigowoad leaf are carried out simultaneously, a pressurized and normal-pressure boiling process in a traditional extraction tank is changed, such that energy can be saved by 0.3-0.5 times, the dosage of a water solvent can be reduced by 0.5-1 time, a feeding amount is increased by 30-60%, an extract yield is increased by more than 10%, a storage process is reduced, and electric energy is saved by more than 30%.

The invention discloses probiotic pressed candy and a production method thereof; the probiotic pressed candy is made from, by weight, 40-70 parts of starch, 10-30 parts of xylooligosaccharide, 20-40 parts of erythritol, 10-20 parts of glutamine, 5-15 parts of skim milk powder, 3-5 parts of probiotic powder, and 0.5-1.5 parts of magnesium stearate. The probiotic pressed candy is high in probiotic count and activity, and has the physiological functions of promoting intestinal digestive system functionality, maintaining gastric and intestinal mucosal health, enhancing human immunity and the like.

The invention relates to a high-efficiency antibacterial medical polyvinyl chloride elastomer. The high-efficiency antibacterial medical polyvinyl chloride elastomer is prepared by taking polyvinyl chloride resin as a matrix, a plasticizer as a second component, an elastomer as a third component and a high-efficiency antibacterial agent as a functional aid, adding an auxiliary plasticizer, a heatstabilizer and a lubricant, and performing blending modification processing. The prepared high-efficiency antibacterial medical polyvinyl chloride elastomer is stable in physical performance and chemical performance, has excellent high-strength, high-elasticity and high-toughness characteristics, and is suitable for preparing special medical instruments with high elasticity requirements; the prepared product has sterilization and antibacterial effects, the ethylene oxide sterilization period can be shortened, and the sterilization efficiency is improved; secondary pollution of the medical instruments can be effectively prevented, the anti-pollution characteristic is achieved, and the purposes of effective sterilization and long-acting antibiosis are achieved.

The invention provides a novel preparation method of peanut oils, peanut spices and peanut proteins. The method comprises the following steps of: baking dry peanut kernels at high temperature; smashing the baked peanuts by using a roller pulverizer; deeply extracting peanut raw materials through high-low-high pressure changes in an extraction process by using a preferable extraction condition; simultaneously obtaining high-quality peanut oils, peanut spices and peanut proteins in one step through the means of supercritical CO2 extraction, separation and refining. The method is simple in steps and environment-friendly; the prepared peanut oils and peanut spices are good in quality, high in safety and free of toxic and harmful substances such as microorganisms, heavy metals, organic solvents and protein sources; the peanut oils are rich in nutrition and good in mouth feel; the peanut spices are pure and rich in fragrance; the peanut proteins are good in fluidity, are nutritious foods and can also be used for developing and producing high additional-value downstream products such as polypeptides, amino acids and the like.

The invention provides a method for preparing dried medlar after secondary cleaning, which is implemented by using a belt dryer through a specific multi-stage drying process. According to the method for preparing the dried medlar after the secondary cleaning, the problem about preparing the dried medlar after the secondary cleaning is effectively solved by adopting the multi-stage drying process; the obtained product has bright color and loose particles, and is clean, sanitary and safe; the quality of the dried medlar is improved; a novel way is developed for preparing the high-quality dried medlar.

The invention relates to the field of medicines, in particular to a compound allopurinol dispersible tablet. The tablet is prepared by the following steps of: respectively sieving 100g of allopurinol, 20g of benzbromarone, 22g of sodium starch glycolate and 4g of superfine silica gel powder by a sieve of 80 meshes; putting 104g of microcrystalline cellulose in an oven at the temperature of 80 DEG C, baking for 2 hours, and sieving by the sieve of 80 meshes for later use; taking the prescription amounts of allopurinol and benzbromarone, and uniformly mixing by an equivalent amount increasing method; taking the prescription amounts of sodium starch glycolate and microcrystalline cellulose and half of the prescription amount of superfine silica gel powder, adding into the mixture of allopurinol and benzbromarone by the equivalent amount increasing method, and uniformly mixing; taking the mixture, using water as an adhesive to make damp mass, sieving by a sieve of 24 meshes to granulate, drying for 3 hours at the temperature of 60-70 DEG C, and arranging particles by a sieve of 22 meshes; uniformly mixing the left half of the prescription amount of superfine silica gel powder with the particles and tabletting, and the weight of each tablet is 0.25g.

The invention discloses a preparation method of a medicine composition containing naproxen and relates to the field of pharmacy. According to a prescription, the medicine composition is composed of naproxen raw material medicine and medicinal auxiliary materials such as a diluting agent, a disintegrating agent, adhesive and a lubricating agent, through a method that spraying granulating is carried out on a fluidized bed, the three procedures of mixing, granulating and drying in a traditional technology are completed at a time, in this way, production efficiency is improved, and produced particles are even in particle size and good in flowability and compression forming; the particles produced through the fluidized bed are pressed into tablets, and therefore compared with a wet-method granulating technology, the medicine dissolution rate of the tablets is obviously increased.

The invention provides a preparation method of a composition containing vildagliptin and metformin. The method includes: S1) dissolving 1-10 parts by weight of an adhesive in water and/or an alcohol solvent to obtain a granulation solution; S2) subjecting 5-95 parts by weight of metformin and/or pharmaceutically acceptable salt thereof and the granulation solution to fluidization granulation and drying, then adding 1-5 parts by weight of vildagliptin and/or pharmaceutically acceptable salt thereof and 1-5 parts by weight of a lubricant, mixing the substances uniformly, and conducting tabletting to obtain the composition containing vildagliptin and metformin. Compared with the prior art, the invention adopts fluidization granulation and simplifies the production procedure, at the same timefluidization granulation improves the raw material fluidity, and the obtained particles are loose, thus increasing compressibility. In addition, vildagliptin and pharmaceutically acceptable salts thereof are not added in the granulation process, thus lowering process impurities.

The invention discloses an extraction method of fructus-clausenae-lanii-peel uranidin. The extraction method comprises the following steps: 1), taking fructus-clausenae-lanii peel, and washing cleanly and smashing the fructus-clausenae-lanii peel; 2), adding the smashed fructus-clausenae-lanii peel into distilled water for mixing, putting an obtained first mixture at a low temperature for refrigeration until the first mixture is completely frozen, afterwards, taking out the first mixture for thawing at a room temperature, and adding cellulase into the first mixture for enzymolysis, so as to obtain a fructus-clausenae-lanii-peel extracting solution; 3), centrifugally separating the fructus-clausenae-lanii-peel extracting solution to abandon a precipitated part impurity, so as to obtain a fructus-clausenae-lanii-peel uranidin crude extracting solution; 4), enabling the fructus-clausenae-lanii-peel uranidin crude extracting solution to pass through a 100nm to 200nm microfiltration membrane, so as to obtain primary effluent liquid; 5), enabling the primary effluent liquid to pass through an ultrafiltration membrane of which the cutoff molecular weight is 3KDa to 5KDa, so as to obtain final effluent liquid; 6), carrying out vacuum freeze drying on the final effluent liquid, so as to obtain the fructus-clausenae-lanii-peel uranidin. The method provided by the invention is simple; the uranidin obtained through extraction is brilliant yellow; particles are loose; the solubility is good.

The invention discloses a high-temperature microwave preparation method of a red rare earth fluorescent material. The red rare earth fluorescent material is prepared by using a two-step high-temperature microwave firing method, wherein in the first step, a matrix is formed by performing microwave firing; and in the second step, rare earth atoms are reduced by performing microwave firing. The method comprises the following steps of: mixing and fully grinding CaSO4, S, Eu2O3, C and a cosolvent NH4C1 and drying; putting the obtained mixture into an inner crucible sleeved into a corundum crucible; filling active carbon powder into an interlayer; putting into an industrial high-temperature microwave oven to fire under an air atmosphere; cooling and fully grinding; turning into another corundum crucible; and putting into the industrial high-temperature microwave oven to secondarily fire in nitrogen-hydrogen mixed gas to prepare the red rare earth fluorescent material. The high-temperature microwave preparation method has the advantages that based on the high-temperature microwave air firing, the matrix is formed by using a quickly-heating characteristic so as to overcome the defect of sublimation of raw material components of a sulfur-containing red rare earth fluorescent material. The method has the characteristics of energy-saving, quickness and effectiveness, simple process and puffed product particles, and can be directly applied to industrial production.

The invention discloses selenium-enriched probiotic growing and fattening pig feed keeping metabolic balance and a preparing method thereof. The selenium-enriched probiotic growing and fattening pig feed is characterized by being prepared from, by weight, 500-550 parts of corn kernels, 100-120 parts of coarse cereal flour, 100-120 parts of alfalfa meal, 5-6 parts of alfalfa saponin, 20-23 parts of selenium-enriched probiotics, 15-18 parts of salt, 100-120 parts of vinasse, 30-35 parts of broad bean flour, 10-12 parts of pericarpium citri reticulatae, 20-25 parts of folium ginkgo, 10-12 parts of semen cassiae, 30-35 parts of almonds, 15-18 parts of lophatherum gracile, 5-6 parts of fresh lemon slices, 10-12 parts of lotus leaf powder, 10-12 parts of lilies, 30-35 parts of tomato sauce and 20-23 parts of syrup. The selenium-enriched probiotic growing and fattening pig feed keeping metabolic balance has the advantages of having comprehensive nutrition, savoury, mellow, fine and smooth mouthfeel and a uniform orange color, and the effective ingredients have the effects of keeping metabolic balance, improving immunity, increasing appetite, diminishing inflammation, decreasing internal heat and the like.