33results about How to "Craft is easy to get" patented technology

The invention discloses a preparation method for nickel cobalt metal powders, which belongs to the technical field for preparation of non-ferrous metal metallurgy, powder metallurgy and material preparation. The preparation method is characterized in that nanometer or ultrafine nickel and cobalt metal powders is adopted as a seed crystal, which is mixed with ammoniacal water solution with nickel sulfate, cobalt sulfate, ammonia and ammonium sulfate, the preparation method adopts a hydrometallurgical hydrothermal hydrogen reducing technology and a device thereof, and the nanometer, ultrafine or tenuous nickel powder, cobalt powder and nickel cobalt alloy powder are prepared through the procedures such as ingredient, high-pressure hydrothermal hydrogen reduction, filtration, washing, drying and the like. The preparation method can be used for the field such as hydrogen storage alloy, galvanization, catalyst, sintering activating agent, magnetic materials, electric conduction slurry, battery materials, wave-absorbing materials, hard alloy, multi-layer porcelain capacitor, powder metallurgy and the like. The preparation method has the advantages of simple raw materials, simple process, short technological process, low manufacturing cost, controllable manufacturing process, high production efficiency, even graininess of metal powders, controllable size and composition and good quality of products.

The invention relates to a preparation method of boehmite, particularly a preparation method of ultralow-sodium boehmite. In the preparation process, aluminum hydroxide is used as the raw material. The preparation method is characterized by comprising the following steps: adding water into the raw material aluminum hydroxide to obtain a pulp, and carrying out hydrothermal treatment, wherein in the hydrothermal treatment process, boehmite and the like are added as seed crystals to control the granular form of the boehmite, and acid or acidic electrolyte is added to enable the pulp to be weakly acidic, thereby further reducing the sodium content in the boehmite; and filtering, washing and drying to obtain the boehmite. The method provided by the invention has the advantages of simple production technique, wide material source, low production cost and the like, and is an ideal method for preparing ultralow-sodium boehmite and aluminum oxide.

The invention discloses an improved method for preparing superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using a hydrothermal process and belongs to the technical field of preparation of inorganic chemical materials. The improved method for preparing the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using the hydrothermal process takes calcium sulphate dihydrate as the raw material and comprises the following steps: firstly activating and roasting at the low temperature to prepare active calcium sulfate hemihydrates, subsequently doping, acidizing, hydrating and drying to prepare a quick-soluble calcium sulfate hemihydrates precursor with the structure defects; then adding the precursor into a saturated calcium sulphate liquid containing a chaotropic agent and a polar solvent, carrying out hydrothermal reaction at 100-200 DEG C for 2-20 minutes, cooling, filtering, washing and drying to prepare superfine high length-diameter-ratio calcium sulfate hemihydrate crystal whiskers with diameter of 0.005-10 microns, length of 10-5000 microns, length-diameter-ratio of 100-10000, and main content of greater than 95%; then mixing the calcium sulfate hemihydrates crystal whiskers with a trace solvent, roasting at 600-800 DEG C for 1-6 hours, cooling, filtering, washing and drying to prepare the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers with appearance which is as same as that of the calcium sulfate hemihydrates crystal whiskers and main content of greater than 95wt%. The improved method for preparing the superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers by using the hydrothermal process is rapid and simple in process and low in costs; and the prepared superfine high length-diameter-ratio anhydrous calcium sulfate crystal whiskers can be used as reinforcement materials.

The invention relates to a microwave assisted extraction method of lemon essential oil. The extraction method comprises the following steps: (1) cleanly cleaning lemon peel, then, drying and crushing, so as to obtain lemon peel powder; (2) putting the lemon peel powder into a nonmetallic vessel, adding water and salt into the nonmetallic vessel, putting the nonmetallic vessel into a microwave extraction device, and then, heating materials in the nonmetallic vessel until the materials in the nonmetallic vessel are boiled; applying microwave radiation to the materials in the nonmetallic vessel after the materials in the nonmetallic vessel are boiled, and collecting generated vapor and condensing, so as to obtain crude lemon essential oil, wherein the manner of microwave radiation applying is intermittent; (3) separating water and impurities from the crude lemon essential oil, thereby obtaining the lemon essential oil. The extraction method disclosed by the invention has the advantages of environmental friendliness, rapidness, energy saving and the like, and is less in environmental pollution, easy in raw material obtaining, simple in process, convenient in operation, low in energy consumption, low in cost and high in efficiency; the prepared lemon essential oil is free from organic solvent residues and is high in quality and high in purity, and the natural quality of the lemon essential oil is kept.

The invention relates to a traditional Chinese preparation for treating fatty liver and process for preparation, characterized by that, the constituent percentage by weight of the raw material are, alisol 12-30%, radix salvia miltiorrhiza 10-25%, haw 12-30%, cassia seed 10-25%, prepared fleece-flower root 5-20%, bupleurum root 5-20%. And the making process comprises the steps of, (1) extracting by ethanol backflow, (2) combination of extract, filtering, depression reclaiming, condensation into clear plaster, (3) watering and immersing, vacuum drying, (4) filling starch into plaster powder, blending, then filling ethanol to obtain the finished product. Clinical application of the invention has proved its substantial curative effect and no side effect.

The invention discloses a synthetic method of 3, 5-dichloro-2, 4-difluoroaniline. The synthetic method takes distillation residues which are generated in the manufacturing technology that 2,6-dichlor fluorbenzene is nitrified to prepare 2, 4-dichloro-3-fluoronitrobenzene as raw material, and the distillation residues are chlorinated through chlorine gas and fluorated through potassium fluoride so as to prepare 3, 5-dichloro-2, 4-difluoro nitrobenzene; and finally, 3, 5-dichloro-2, 4-difluoro nitrobenzene is reduced to obtain 3, 5-dichloro-2, 4-difluoroaniline. The synthetic method adopts by-products that are generated in the conventional manufacturing technology line as raw material, is directly used for synthesizing 3, 5-dichloro-2, 4-difluoroaniline without any treatment, is characterized by low price of raw material, full resource utilization, mild reaction conditions, high yield coefficient of products, low manufacturing cost and the like compared with a conventional method for preparing 3,5-dichloro-2,4-difluoroaniline, is easy to get raw material, and is very suitable for industrialized production.

The invention discloses a white-leg shrimp compound feed with partial fish meal replaced with corn protein powder. Metered by the total weight of the feed, the white-leg shrimp compound feed comprises the following components in percentage by weight: 20-26% of white fish meal, 10-13% of soybean meal, 4-10% of peanut meal, 4-7% of yeast, 5-10% of corn protein powder, 7-11% of meat meal, 0.5-1.5% of squid liver paste, 26-31% of flour, 0-2% of rice bran and the like. The invention simultaneously discloses a preparation method and application of the white-leg shrimp compound feed. The corn protein powder is prepared by the steps of: mixing corn steep liquor obtained from the corn starch production with waste liquid generated after the production of lysine and glutamic acid according to a certain proportion, and refining through the processes of enzymolysis, concentration, drying and the like. The use of the corn protein powder is not only beneficial to environmental protection but also beneficial to the reduction of fish meal consumption. In the invention, the used raw materials are easy to obtain, the production process is simple and the quality is stable.

The invention relates to the technical field of a heat shrinkable polyester film, and particularly relates to a heat shrinkable polyester film and a preparation method thereof. The invention provides a heat shrinkable polyester film and a preparation method thereof, so as to solve the defect of poor performance of the existing heat shrinkable polyester film (a heat shrinkable for short) and the defects that the PVC (polyvinyl chloride) heat shrinkable film pollutes the environment, and is difficult to recover. The heat shrinkable polyester film is prepared from the following raw materials in percentage by weight: 20-59% of polyester material. 20-30% of anti-blocking master batch, 20-40% of filler particle master batch, and 1-10% of foaming agent master batch; the content of filler particles in the filler particle master batch is 30-50wt%; the content of a foaming agent in the foaming agent master batch is 10-20wt%; and the density of the polyester film is 0.8-1.3g / cm<3>. The raw materials of the polyester film are easy to obtain, the preparation method is simple and the polyester film is excellent in performance.

The invention discloses moisture-proof phenolic molding plastic prepared from cardanol-modified thermoplastic phenolic resin, solid melamine resin, hydrophobic cellulose, active mineral filler, a urotropin curing agent, a curing accelerator and a mold release. The moisture-proof phenolic molding plastic has better moisture-proofness and heat resistance. The phenolic molding plastic is prepared by taking the cardanol-modified thermoplastic phenolic resin and the solid melamine resin as binders, the hydrophobic cellulose and the active mineral powder as filler and urotropin as a curing agent and matching with the curing accelerator, so that the moisture-proof phenolic molding plastic has better moisture-proofness as comparison with universal phenolic molding plastic; in addition, the production process is simple, and the production cost is relatively low.

The invention disclosed a plant carbonizing way to produce methane liquefied gas which uses the carbonized botanical carbon as the material. The producing procedure includes the following steps: burning the mentioned botanical carbon at high temperature in the gasifying stove, while burning, charging air, water steam to the stove to produce CO, CO2, H2 and other gas; dusting, cooling and cleaning the gas; transforming the gas into methane through methane transforming process; high pressure liquating the gas to get the mixed fuel gas in which methane is the main ingredient, it also contains CO and H2. The sewage, dreg discharge and air pollution is less than the traditional method which uses coal to produce water gas or liquefied gas; the invention has many advantages such as environment-friendly, easily available material and simple technology; besides, it needs low equipment investment and operating cost.

The invention relates to the field of sensitizers for thermosensitive paper, particularly a synthesis method of a high-purity 1,2-diphenoxyethane thermosensitive sensitizer. The method comprises the following steps: adding phenol and dichloroethane into a reaction kettle, performing heating under reflux, dropwisely adding an acid-binding agent into the reaction kettle, performing reaction until no phenol is detected, performing reduced pressure distillation to remove the dichloroethane, supplementing the acid-binding agent, performing heating, dropwisely adding the phenol, performing tracking detection until 2-chlorophenetole reacts completely, stopping dropwisely adding the phenol, performing water washing to remove the salt, and performing ethanol recrystallization to obtain the product. The reaction condition is mild: the maximum temperature is controlled at 120-150 DEG C, so the condition is accessible. The method has the advantages of short reaction time, accessible raw materials, simple technical operation process, recyclable raw materials and high product purity, and is suitable for industrial production.

The invention provides a special catalyst for removing hydrogen sulfide through selective catalytic oxidation and a preparation method for the special catalyst, and belongs to the technical field of catalyst. A catalyst DXY-1 comprises the following components in percentage by mass: 25 percent of titantium oxide, 15 percent of aluminum oxide, 10 percent of iron oxide, 8 percent of boehmite powder, 5 percent of ferric citrate ammonium, 30 percent of silicon oxide, 5 percent of triamine citrate, 1 percent of sodium aluminate and 1 percent of aluminum sulfate; and A catalyst DXY-2 comprises the following components in percentage by mass: 32 percent of titanium oxide, 18 percent of aluminum oxide, 5 percent of palladium oxide, 3 percent of boehmite powder, 10 percent of ferric citrate ammonium, 25 percent of silicon oxide, 1 percent of lemon chrome, 1 percent of triamine citrate, 3 percent of sodium silicate and 2 percent of aluminum sulfate. The invention further provides a preparation method for catalysts DXY-1 and DXY-2. The catalyst provided by the invention is high in selection, gives priority to hydrogen sulfide removal, is wide in adaption, can be suitable for gas desulfuration with smallest hydrogen sulfide content being 3000ppm, and biggest hydrogen sulfide content being 100000ppm, and has relatively high catalytic efficiency.

The invention discloses a preparation method of absorbable spongy bone wax with hemostatic and bone healing promoting functions. The preparation method comprises the following steps: uniformly mixingquaternized chitosan / modified starch composite microspheres with beta-tricalcium phosphate and a silk fibroin solution, and performing freeze drying to obtain the absorbable spongy bone wax. The absorbable spongy bone wax with hemostatic and bone healing promoting functions is prepared by combining a specific raw material ratio with a preparation process. Due to the fact that the raw materials have good biocompatibility and can be absorbed by the human body, the prepared spongy bone wax can be absorbed by the human body, residues are avoided, and bone wound healing is facilitated. Secondly, due to the action of the quaternized chitosan / modified starch composite microspheres, the bone wax has a good hemostatic effect, has certain antibacterial and anti-inflammatory effects, and has a good effect of promoting bone wound healing. Beta-TCP with bone induction and bone guidance effects is also added into the bone wax, so that the bone wax can promote repair of bone defect parts in bone wounds.

The invention relates to the field of fungus fermentation, in particular to a culture medium for auricularia auricula fermentation, a fermentation method and a fermented beverage. The culture medium for auricularia auricula fermentation consists of the following raw materials in percentage by mass: 15%-25% of potato juice, 3%-5% of corn flour, 0.5%-1.5% of yeast powder, 0.05%-0.2% of KH2PO4, 0.05%-0.2% of MgSO4 and 68.1%-81.4% of water. Fermentation broth prepared by the culture medium has the nutritional value of auricularia auricula, contains polysaccharides, small molecular peptides, enzymes and other nutrients, and can enhance body immunity and intestinal functions, tonify qi, improve intelligence and moisten lung.

The invention discloses a preparation method of traditional Chinese medicine body lotion. The raw materials are: deionized water, sericin, burnet, windproof, stearyl alcohol, scorpion, angelica, pearl hydrolyzate, wild ginseng, glycerol, benzene Oxyethyl alcohol, sodium lauryl sulfate, glucosamine phosphate, cucumber extract and essence; overcome skin discomfort and allergic reactions caused by simple use of chemical or physical sunscreens; product quality is stable and can quickly penetrate into the inner layer of the skin , has good stability and safety; promotes the absorption of nutrients, promotes skin metabolism, has a moisturizing effect and strengthens the water retention capacity of the skin's moisturizing layer, makes the skin naturally white, smooth and tender, mild, safe and non-irritating to the skin; use The effect is remarkable, and the synergistic effect of each component can regulate the skin's acid-base balance, improve skin immunity, thoroughly improve skin quality, and nourish and moisturize the skin.

The invention relates to a crispy sesame seed cake with a slimming effect and a making method thereof. The sesame seed cake is made from flour, water, edible oil, salt, white granulated sugar, semen cassiae, hawthorn fruits, radix polygni multiflori, rhizoma atractylodis macrocephalae, pyracantha fortuneana fruits, fructus lycii, Chinese prickly ash, sesame seeds, fresh ginger, green Chinese onions, celery, pumpkins, kudzuvine roots and the like through raw material pretreatment, dough kneading and resting, cake blank making and baking in an oven. The sesame seed cake is reasonable in raw material proportioning, the nutrition structure is scientific, multiple functional compositions are enriched, the product appearance is golden yellow, the mouthfeel is crispy and unique, the effects of slimming, losing weight and eliminating body junk are achieved, and the sesame seed cake is particularly suitable for obese people. The sesame seed cake with the slimming effect is simple in composition, wide in source, low in production cost and simple in technology and has a very good market prospect.

The invention discloses a tripropargyl isocyanuric ester polymer and a preparation method thereof. The tripropargyl isocyanuric ester polymer is a polymer obtained by melting tripropargyl isocyanuric ester serving as a polymerization monomer at the temperature of 160-170 DEG C and curing at the temperature of 245-300 DEG C with a thermal polymerization method; and the initial decomposing temperature of the tripropargyl isocyanuric ester polymer is 370-385 DEG C. A tripropargyl isocyanuric ester polymer material with a high crosslinking degree can be obtained at a low thermal treatment temperature, the polymer has very high temperature resistance, and starts decomposing at the temperature of 370-385 DEG C in an N2 atmosphere, and the carbon yield can be up to 70-75 percent at the temperature of 800 DEG C.

The invention discloses a dilute sulfuric acid and graphene oxide co-doped modified titanium dioxide composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding tetrabutyl titanate into ethanol to form a solution A, (2) preparing an ethanol-sulfuric acid solution to form a solution B, dropwise adding the solution B into thesolution A, and uniformly stirring to obtain a mixed solution, (3) reacting at constant temperature to obtain slurry, (4) centrifugally separating the slurry, and washing, drying and grinding to obtain powder, (5) calcining to obtain sulfuric acid-titanium dioxide, (6) preparing a graphene oxide dispersion liquid, (7) adding sulfuric acid-titanium dioxide into the graphene oxide dispersion liquidfor a reaction to form a suspension liquid, (8) carrying out constant-temperature reaction on the suspension to obtain a crude product, and (9) washing and drying the crude product to obtain the composite material. The preparation method is simple, low in cost and suitable for large-scale production. The prepared composite material is high in purity, can efficiently degrade tetracycline hydrochloride, and has good application value in the aspect of environmental pollution remediation.

The invention relates to a novel rock candy, and in particular relates to a sugar alcohol rock candy, which belongs to the field of food or functional food. The preparation method of the sugar alcohol rock candy comprises the following steps of: adopting sugar alcohol, preferably preferential xylitol, erythritol or isomaltitol, re-dissolving the sugar alcohol, cleaning and processing the sugar alcohol, and recrystallizing the sugar alcohol to obtain the large-particle crystallized sugar. According to the sugar alcohol rock candy, the defects of rock cane candies, such as high heat quantity and easiness in causing hyperglycemia, obesity and decayed teeth can be overcome to a certain extent. The recrystallized sugar alcohol rock candy has the advantages of high purity, no impurities, high sweetness, good taste and flavor, non-deterioration, easiness in storing, carrying, and convenience in eating.