32results about How to "Advantages of preparation process" patented technology

The invention relates to a continuous preparation system and a preparation technology of whole grain grade tailing cemented filling slurry. The continuous preparation system mainly comprises a tailing slurry collecting buffer feeding device, a deep-cone thickener, a flocculating agent preparing and adding device, an underflow slag slurry pump, a cementing material storage bin, a cementing material measuring and conveying device, an air compression system, a water supply system, a filling accident pool, a stirring system and a filling slurry output pipeline. The preparation technology comprises the steps of conveying tailing slurry to the tailing slurry collecting buffer feeding device through the slag slurry pump, after reducing the pressure to 0.03 MPa through the collecting buffer feeding device and carrying out energy dissipation, feeding the tailing slurry into the deep-cone thickener, and adding a flocculating agent into the deep-cone thickener according to the principle that for per ton of tailing slurry, every 5 to 20 g of the flocculating agent is added, so as to obtain high-concentration tailing slurry with the concentration of 65 to 75%; and conveying the high-concentration tailing slurry and a cementing material into the stirring system according to the fact that the mass ratio of the high-concentration tailing slurry to the cementing material is 1 to (5 to 40), adding water, stirring, and preparing the mixture into the high-concentration whole grain grade tailing cemented filling slurry with the concentration of 65 to 75%. According to the continuous preparation system and the preparation technology, the system is simple, the automation degree during the preparation process is high, the operation is convenient, and the filling slurry can be continuously prepared.

The invention discloses a method for preparing alpha, omega-bis(aminopropyl)polydimethylsiloxane. A siliconate catalyst is prepared through alkali compound which is provided by the preparation method and then the catalyst has a good compatibility in the reaction solution, thus improving the catalytic reaction rate and obviously shortening the equilibrium reaction time. Raw materials are dehydrated before the reaction to eliminate the interference of end-capped hydroxy group and increase reaction efficiency. The final product synthesized has the characteristics of high amino termination yield, good stability and the like. The obtained product can be used as a basic raw material for siloxane-organic block copolymer and can also be used as an excellent conditioning agent in the hair care composition.

The invention discloses a composite pulp drink of sweet potatoes and yellow peaches and a preparation method thereof. The drink comprises composite pulp and stabilizing agents, wherein the composite pulp comprises the original pulp of the sweet potatoes and the yellow peaches, and the original juice of apples and pears with the volume ratio of (40-55):(20-30):(10-15):(10-20); the stabilizing agents are xanthan gum accounting for 0.02-0.06% of the total volume of the drink, gellen gum accounting for 0.005-0.03% of the total volume of the drink and acid-resistant type CMC (Sodium Carboxy MethylCellulose) accounting for 0.01-0.06% of the total volume of the drink. The composite pulp drink highlights the unique fragrance of the sweet potatoes, simultaneously is rich in nutritive ingredients of the sweet potatoes, the yellow peaches, the apples and the pears, has unique flavor and uniform and stable state, is a novel health-care composite pulp drinks with fruits, and has wide market prospect.

The invention relates to a moxa-moxibustion tool and a preparation process thereof. The moxa-moxibustion tool comprises a moxibustion tool and a moxibustion core, wherein an air hole is formed in the bottom end of the moxibustion tool, the moxibustion tool is of a cylindrical structure, the moxibustion core is fixed to the upper portion of the inner cavity of the moxibustion tool, the upper surface of the moxibustion core protrudes out of the moxibustion tool, and the portion, in contact with a moxa cake, of the inner surface of the moxibustion tool is a flame-retardant face and is of a wedge surface structure. The moxibustion core is the moxa cake, the maximum size of the bottom surface of the moxa cake is 1-5 times of the height of the moxa cake, the bottom surface of the moxa cake is a cambered surface protruding upwards, the center of the upper surface of the cambered surface protrudes and is higher than the upper surface of the cambered surface, the bottom surrounding of the protrusion is downwards sunken and is lower than the upper surface of the moxa cake, a blind hole with a downward opening is formed in the moxa cake, and the hole bottom of the blind hole is located in the protrusion. The invention also correspondingly provides the preparation process of the moxa-moxibustion tool. The moxa-moxibustion tool is aligned during the moxa cake releasing, releasing and installation of the moxa cake can be simultaneously achieved, and working processes are saved. A central hole of the moxa cake is the blind hole, and the blind hole blocks an upper-end outlet of a flue, so that moxibustion smoke only flows downward, and the moxibustion utilization rate is improved.

The invention discloses a preparation process of a modified acrylonitrile-butadiene-styrene (ABS) material for a 3D printer. The preparation process comprises the following steps: 1) weighing various components and preparing polybutadiene rubber; (2) dissolving the polybutadiene rubber in prepared styrene and acrylonitrile monomer; and carrying out phase transformation in a reactor; 3) carrying out phase transformation for multiple stages, and implementing devolatilization when the transformation rate reaches more than 70%; 4) granulating molten materials to obtain small-size ABS particles; and 5) mixing, extruding and granulating small-size ABS particles and large-size PSF particles to obtain a target product. The ABS modified material similar to a core-shell structure is prepared by mixing, extruding and granulating the small-size ABS particles and large-size PSF particles; in the extruding process, the small-size ABS particles are covered by large-size PSF particles which are comparatively large in granularity, so that the shell of the core-shell structure is formed; and the final material, which integrates advantages of the ABS material and the PSF material, has good mechanical property and relatively high bending strength.

A preparation technical of m-cresol is that: M-cresol is diazotizated, and hydrolyzed while at the same time steam is distilled to prepare a distilled m-cresol hydrolysis liquid. The distilled hydrolysis liquid passes through a N3520 type macroporous resin, and is eluded by organic solvent; the m-cresol product is obtained after rectifying. The invention adopts steam to distil m-cresol generated by hydrolyzation in time, which produces little byproduct tarry matter and increases the yield rate of m-cresol; preparation of product and treatment of waste water are carried out at the same time, which reduces the waste water treatment procedure and simplify the progress of preparation technology; because the invention adopts N3520 type macroporous resin to dispose the distilled m-cresol hydrolysis liquid, the m-cresol is easily desorbed with a fast desorption rate and a short reaction cycle, thus being beneficial to the recycle of m-cresol. The preparation technology of m-cresol of the invention has a yield rate over 85 percent and purity over 99.5 percent.

The invention relates to a preparation method of a Chinese herbal stomach-nourishing pill. The Chinese herbal stomach-nourishing pill is composed of rhizome atractylodis, dried tangerine peels, poria cocos, pinellia ternate, vinegar-made rhizoma cyperi, fried immature citron, dehulled amomum kravanh, ginger-made mangnolia officinalis, pogostemon cabin, liquorice, elecampane and fructus amomi. The preparation method includes steps of firstly drying various raw materials under ultraviolet rays, smashing them into powder with 80-100 meshes, and uniformly mixing; secondly, decocting ginger and jujube in water to obtain decoction liquid; thirdly, mixing and stirring the uniformly mixed powder and the decoction liquid uniformly to obtain particles with 18 meshes in diameter, and drying; fourthly, placing the dried particles into a ball die to be pressed into balls, placing the balls into a generic pill pot, and adding 5% of talcum powder and ferriferous oxide to generically obtain the Chinese herbal stomach-nourishing pill. The preparation method of radix gentianae pills capable of purging pathogenic fire of the liver is short in production cycle and high in production efficiency, pills prepared are easy to form, and microbial limit is ensured to meet the requirement.

The invention provides a preparation process for a polysilicon film. The preparation process comprises the following steps: introducing SiH4 into a vertical furnace, and performing constant-temperature constant-pressure deposition under the conditions of a pressure of 15-35 Pa and a temperature of 650-675 DEG C so as to allow the polysilicon film to grown on the surface of a silicon wafer. A polycrystalline silicon wafer prepared by using the polysilicon film preparation process of the invention has low warpage and small bending increment after polishing, and does not need treatment by an annealing process, so the risk of abnormality of the silicon wafer is effectively reduced, processing steps are decreased, a product processing cycle is shortened, and processing cost is lowered.

The invention discloses a synthesizing method for bio-based long-carbon-chain semi- alicyclic polyimide-imide. Maleopimaric acid acyl chloride and 1,10-decamethylene diamine respectively made of gum rosin and castor oil as raw materials are put into a stirring-type polymerization reaction container; inert gases are fed after the stirring-type polymerization reaction container is vacuumized; the polymerization reaction container is heated hermetically; after the stirring speed of the polymerization reaction container is adjusted, the reactants are thermally insulated and pressurized, and the gases are discharged so as to obtain ordinary pressure; the polymerization reaction container is heated again, the stirring speed of the polymerization reaction container is adjusted, and the polymerization reaction container is continually vacuumized after constant temperature is obtained; and the bio-based long-carbon-chain semi-alicyclic polyimide is obtained after the reaction is over. The synthesizing method of the invention is based on the principle of melt polycondensation and the whole synthesis process does not require any organic solvent, so that no additional steps to recover organic solvent are needed , and no toxin or harm is generated to people and the environment. The synthesized polyamide-imide PA10I has the advantages of good heat resistance, high-temperature rigidity, dimensional stability and low water absorption. The polyamide-imide PA10I can be used for engineering plastics or film materials and the like.

The invention discloses floating feed for a juvenile ophiocephalus argus stage and a preparation method of the floating feed. Firstly, a spray agent prepared from 85%-90% by mass of fish oil, 1%-3% bymass of a lipopeptide biosurfactant, 0.6%-2.0% by mass of vitamin E and the balance distilled water is researched and developed. On the basis of the spray agent, the floating feed used for the juvenile ophiocephalus argus stage and having an oil absorption assisting function is researched and developed. Specifically, the floating feed is prepared by steps of preparing particles from raw materialsand spraying the spray agent to the surfaces of the particles, and the raw materials comprise 28%-40% by mass of fish meal, 20%-25% by mass of high-gluten flour, 10%-15% by mass of soybean meal, 8%-12% by mass of bran, 4%-6% by mass of shrimp meal, 2%-6% by mass of squid visceral ointment, 2%-4% by mass of spirulina and 0.2%-0.4% by mass of choline oxide. The feed is high in nutrient retention degree, good in palatability, good in buoyancy and low in cost, contains few nutritional antagonism factors and has the beneficial effects of remarkably assisting in efficient oil absorption of juvenileophiocephalus argus, remarkably increasing the survival rate of the juvenile ophiocephalus argus and the like.

The invention relates to the technical field of automobile safety belt pull rods, in particular to a medium carbon steel material for an automobile safety belt pull rod and a preparation process of the medium carbon steel material. The preparation process at least comprises the following steps that a SWRCH35K material is selected as a base material; primary drawing is carried out, wherein the total compression rate is 60-80%, the partial compression rate is 5-15%; spheroidizing annealing is carried out, namely the temperature is heated to 20-30 DEG C above the austenite transformation temperature, the temperature is kept for 5-6 hours, then the temperature is cooled to 20-30 DEG C below the the austenite transformation temperature at the standard of 8-10 DEG C per hour, the temperature iskept for 3-4 hours, and then cooling is carried out along with a furnace until the base material can be discharged from the furnace; and precision drawing is carried out, namely single-pass drawing iscarried out, and the compression rate is controlled to be 10-15%. The medium carbon steel material prepared by the preparation method has relatively high impact resistance, the hardness HRB is 85-95,and the tensile strength is 650-800 MPa, so that the medium carbon steel material is applicable to follow-up product processing and forming while being ensured not to deform when certain tensile force is applied.

The invention relates to a process for preparing high-purity beta-artemether, and aims to provide a preparation process of artemether, and the preparation process has the advantages of easiness in technological operation, low cost and high yield. The preparation process of the artemether comprises the following steps: a, etherifying, namely adding dihydroartemisinin into an ester solvent to perform etherification reaction under the action of a catalyst; b, concentrating, namely concentrating and drying the etherification product to obtain the product. The preparation process is simple and easy to operate and is suitable for industrialization; the reaction solvent and an etherifying agent in the entire process are the same solvent, namely the ester solvent, so that the control over the industrial production is more facilitated, and the recovery and reuse of the solvent are also facilitated; the yield of the beta-artemether in the prepared product reaches over 95 percent, the raw material is greatly saved, and the production cost is reduced; the time of the entire synthesis reaction is only 1-2 hours, so that the production period is short; the reaction can be excellently performed under the room temperature condition without freezing treatment, so that energy is saved, and industrial production is also facilitated.

The invention relates to the technical field of traditional Chinese medicine manufacturing, in particular to a traditional Chinese medicine preparation for preventing and treating hepatic fibrosis, a soft capsule for preventing and treating the hepatic fibrosis and a preparing process of the traditional Chinese medicine preparation and the soft capsule. The traditional Chinese medicine preparation comprises, by weight, 500-1000 parts of seudo-ginseng, 150-350 parts of astragalus membranaceus, 100-300 parts of roots of red-rooted salvia and 150-350 parts of radix scrophulariae. According to the traditional Chinese medicine preparation, multiple Chinese herbal compound components are adopted, the traditional Chinese medicine preparation has obvious advantages in preventing and treating the hepatic fibrosis through the multi-component, multi-link, multi-level and multi-target pharmacological effects of the Chinese herbal compound, and the soft capsule has the advantages of being precise in content, good in stability, good in dissolution, high in absorption speed, small in side effect, convenient to carry, safe and convenient to take, small in dose, high in bioavailability, quick in curative effect, good in effect and the like.

A process for preparing the composite pumpkin juice from pumpkin pulp includes such steps as heating at 40-60 deg.C for 1-2 hr, filtering by vibration sieve to obtain filtrate, instantaneously deactivating enzyme at 90-99 deg.C, cooling to obtain pumpkin juice, proportionally mixing it with pineapple juice, apple juice, water melon juice, xanthan gum and pectin, homogenizing twice, vacuum degassing and instantaneous sterilizing at 121 deg.C. Its advantages are rich nutrients and unique fragrance.

The invention discloses a red mud fine ceramic winebottle blank, and a preparation process for manufacturing a winebottle from the same. The preparation process comprises the following steps: mixing 40-55% by weight of first red mud and 60-45% by weight of second red mud, and carrying out ball milling, sieving, filter-pressing dehydration and mud squeezing successively so as to obtain a mud cake;then, according to the shapes of a winebottle body and a winebottle head, carrying out separate and segmented moulding for the winebottle body and the winebottle, and then carrying out bonding to obtain a rough winebottle body and a rough winebottle head; and finally, separately subjecting the rough winebottle body and the rough winebottle head to natural drying, baking, blank washing, baking, biscuiting, inner-glaze preparation, inner-glaze pouring, outer-glaze preparing, outer-glaze soaking, glaze firing, color baking after overglaze decoration, sorting and packaging sequentially. Accordingto the red mud fine ceramic winebottle blank, and the preparation process for manufacturing the winebottle from the same in the invention, the prepared winebottle looks like pottery, but detection indexes shows the winebottle belongs to porcelain; the winebottle has excellent glaze surface with no or low gloss; and the cost of raw materials is low.

The invention provides an isobutyryl ethyl acetate preparation process which is characterized by comprising the following specific steps: step one, adding 125 mL of ethyl acetate and 13.6 g (80 mmol)of potassium mono-ethyl malonate into a three-neck flask, stirring and cooling to 0-5 DEG C, then sequentially adding 9.12 g (96 mmol) of anhydrous magnesium chloride and 27.8 mL (0.2 mol) of triethylamine, heating to 65 DEG C within 0.5 h, and stirring for 6 hours at the temperature of 65 DEG C; step two, cooling to 0 DEG C, dropwise adding 6 mL (57 mmol) of isobutyryl chloride within one hour, and carrying out reactions at the room temperature for 12 hours; step three, cooling to 0 DEG C, carefully adding 70 mL of 13% hydrochloric acid, keeping the temperature not higher than 20 DEG C in theprocess; step four, separating out an organic phase, extracting a water layer with toluene (40 mL*3), merging the organic phase, washing with a saturated sodium bicarbonate solution until the organicphase is neutral, and washing with 25 mL of saturated edible salt water, and carrying out reduced pressure distillation to remove the solvent; and step five, carrying out reduced pressure distillation on the crude product to obtain 5.5 g of colorless liquid. The method provided by the invention solves the problems of low productivity and low purity during production and manufacturing of isobutyryl ethyl acetate at present.

The invention discloses a young poultry feed and a preparation method thereof. According to the invention, firstly, a lipopeptide microbial surfactant raw material embedded by microcapsules is provided, and then, based on the lipopeptide microbial surfactant, the young poultry granulated feed with the function of assisting grease absorption is developed. The feed comprises the following components in parts by mass: 42-60 parts of corn flour, 13-39 parts of peeled soybean meal, 4-12 parts of bran, 1-3 parts of soybean oil, 1-3 parts of a lipopeptide microbial surfactant embedded by microcapsules, 0.3-1.9 parts of stone powder, 0.7-2.1 parts of calcium hydrophosphate, 0.1-0.3 part of edible salt, 0.2-0.8 part of trace elements and 0.1-0.4 part of choline chloride. The feed is complete in nutrients, high in retention degree, few in nutritional antagonistic factors, good in palatability and low in cost, and has the beneficial effect of helping young poultry to efficiently absorb grease.

The invention provides a process for preparing isobutyryl chloride by adopting phosphorus trichloride. The process is characterized by comprising the following specific steps: step 1, respectively connecting a 100 mL constant-pressure dropping funnel, a set of stirring device and a spherical condenser to a dry 250 mL three-neck bottle, and connecting a tail gas absorption device to the top of thecondenser; step 2, at first, adding 542 grams (4.55 mol) of sulfoxide chloride, dropwise adding 352 grams (4 mol) ofisobutyric acid to generate HCl and SO2, and stirring; step 3, after dropwise addingis finished, continuously stirring and heating to 80 DEG C, keeping for 0.5 hour, distilling and collecting 83-100 DEG C wide fraction, and distilling and collecting 90-92 DEG C fraction, namely isobutyryl chloride. The problems that in a conventionalisobutyryl chloride production process, the catalytic reaction under the action of a catalyst is not complete, generation of impurities is easy, theyield of the product is not high, and waste gas, waste solids, and wastewater are generated are solved.

The invention provides a water-based foamed coating shading cloth and a preparation process thereof. The water-based foamed coating shading cloth sequentially comprises a base cloth layer, a white priming coat, a black shading layer and a cover surface scratch-resistant layer from a front surface to a back surface, wherein a fabric texture of the base cloth layer is formed by weaving a coil texture structure; manufacturing raw materials of the white bottom layer comprise a water-based acrylate emulsion, an environment-friendly flame retardant, an opacifier, a foaming stabilizer, an antioxidant, a cross-linking agent and a thickening agent; the manufacturing raw materials of the black shading layer comprise the water-based acrylate emulsion, the environment-friendly flame retardant, the opacifier, a filler, the foaming stabilizer, the cross-linking agent and the thickening agent; the manufacturing raw materials of the cover surface scratch-resistant layer comprise an aqueous polyurethane emulsion, an organic silicon emulsion, a pH regulator and the thickening agent. The water-based foamed coating shading cloth provided by the invention has good shading performance, environmental protection performance and micro-elasticity performance; the preparation process is simple and quick, the effect is good, the existing coating machine equipment can be used for preparation, and the industrial transformation difficulty is small.

The invention provides a novel OSB structure building template and a preparation method thereof. The novel OSB structure building template comprises an oriented strand board layer, a hot-melt plasticlayer and a wear-resisting layer and is prepared from, by weight, 85-115 parts of flaking base materials, 2-5 parts of waterproof agents, 10-85 parts of organic glue, 1-4 parts of tackifiers, 3-9 parts of water, 2-6 parts of reinforcing fibers and 1-2.5 parts of hot-melt plastic particles. Compared with a traditional plywood thermoplastic extrusion molding process that the surface of a product needs to be punched to form a plastic surface layer, the OSB surface layer does not need to be punched or subjected to extrusion molding, surface gaps are directly filled with hot melting type plastic particles, and a wear-resisting layer is flatly laid on the upper surface of the OSB surface layer to prevent a steel plate from being bonded during hot pressing. The prepared novel OSB structure building template is good in waterproof performance and high in strength. The impact resistance and the bending resistance are high, and the turnover frequency of the building template and the wood utilization rate are obviously improved.

The invention provides a preparation process of a flexible reinforced composite tube. The preparation method solves the technical problems that an existing composite flexible tube does not have a corresponding preparation process, cannot be quickly prepared in batches, and is low in preparation speed and the like. The preparation process of the flexible reinforced composite tube comprises the following steps of a, preparing materials; b, preparing; c, extruding; d, drying; and e, forming. The preparation method has the advantage of being high in preparation speed.

The invention relates to the field of IPC C12P21/00, in particular to a preparation process of a hydrolyzed protein composition, a product and application. The preparation process comprises the following specific preparation steps that S1, animal cortical tissues are collected, and the animal cortical tissues are pre-treated to obtain first protein and second protein; S2, the first protein and the second protein are correspondingly hydrolyzed, and hydrolysates are mixed; and S3, the mixed hydrolysate is purified to obtain a hydrolyzed protein composition finished product. The preparation process has the following advantages that raw materials are safe and pollution-free, a double hydrolysis process is combined with a liquid phase mixing process, and the obtained hydrolyzed protein composition is very close to human body components and has high bioavailability; and the hydrolyzed protein composition can improve the tensile strength of the corium layer and soften the corium tissue, reduce the generation of skin laxity and wrinkles, provide moisturizing, smoothing, anti-wrinkle and anti-oxidation effects for the skin, help the skin to resist harsh environment infestation, and provide a brand new solution for anti-aging and beauty treatment.