70results about How to "The preparation method is easy to obtain" patented technology

The invention discloses a reductively biodegradable type honeycomb polyurethane support, and a preparation method and application thereof. The preparation method comprises: taking 2,2'-dithiodiethanol as an initiator, employing a ring-opening polymerization method to synthesize double-hydroxy-terminated polycaprolactone containing disulfide bonds; reacting with diisocyanate containing a disulfide bond to form polyester type polyurethane containing disulfide bonds; then dipping a biological template wisteria sinensis with a sodium chloride solution and calcining to obtain a negative template porous sodium chloride of wisteria sinensis; and finally immersing the negative template porous sodium chloride of wisteria sinensis with a waterless organic solution of the polyester type polyurethane containing disulfide bonds, drying and removing the negative template to obtain the honeycomb polyurethane support, wherein the molecular structural formula of the polyurethane is shown in the description. The reductively biodegradable type honeycomb polyurethane support has the advantages of simple technology, easy batch preparation, and strong biodegradation controllability; and the honeycomb structure is beneficial to transportation of substances inside or outside the support, the support can be used as a porous support for tissue regeneration repair, and belongs to a tissue engineering support material with excellent comprehensive performances.

The present invention relates to a preparation method of 8 (Z/E)-dodecylene-1-yl acetate of pheromone of oriental fruit moth of pests of fruit trees of the lep-idoptera tortricidae. In the method, 1, 8-octandiol is used as raw material, treated through unilateral bromination with hydrobromic acid, acetylated and transformed into aldehyde with N-oxidated pyridyl; finally the 1, 8-octandiol and bromide butyl triphenyl have the Scholer-Wittig reaction to synthesize the target compound. The method has the advantages of raw materials that can be easily prepared, simple process, mild conditions, high yield, low cost, suitability for large-scale production, and so on. The method provides necessary conditions for the wide application of the pheromone of oriental fruit moth to replace chemical pesticides so as to prevent and treat the pests of fruits, and has higher theoretical significance and excellent application value.

The invention discloses a preparation method of alogliptin benzoate (formula 1). The method is easily available in raw materials, mild in reaction conditions, simple in operation and applicable to large-scale industrial production.

The invention provides alkaline powder for treating leaked sulfuric acid and a preparation method of the alkaline powder. The alkaline powder is prepared from a neutralizer, an aid, a heat absorbent, a moisture-proof agent, a dispersant and an indicator in a certain ratio by a specific method. The raw materials for preparing the alkaline powder are readily available; the preparation method is simple, convenient and low in energy consumption; and the prepared powder does not cake, and is low in moisture absorption and good in settling performance after being sprayed. The alkaline powder can be used for effectively treating the leaked sulfuric acid of which the concentration is 50 to 98 percent or more; and the treatment process has the characteristics of high response speed, low temperature rise, secondary harm prevention, simplicity and convenience in endpoint judgment and the like.

The invention discloses a melt-blown polypropylene material and a preparation method thereof, and belongs to the technical field of polypropylene. The melt-blown polypropylene material is prepared from the following raw materials of: 94 to 94.2 parts of homopolymerized polypropylene resin with a melt index of 20 to 30g/10min; 0.5 to 0.6 part of a chain breaking agent; 3 to 7 parts of a softener; 0.1 to 0.2 part of a nucleating agent; and 0.1 to 0.2 part of an antioxidant. Equipment for producing the melt-blown polypropylene material is improved; a screw rod with the screw length-diameter ratiohigher than 52: 1 is used in the equipment, the proportion of a mixing section in a screw combination is larger than or equal to 45%, the proportion of a strong shearing block in the screw combination is smaller than or equal to 10%, and the proportion of a uniform conveying section after vacuum extraction in a conveying section is larger than or equal to 30% of the total length after extraction.The melt-blown polypropylene material prepared by the formula and the equipment has a high melt index; the ash content and volatile components of the material are controlled at a low level; the material meets national standards. The preparation method is simple, adopts easy-to-obtain raw materials and is suitable for industrial production.

The invention discloses an organic network preparation method of ferrozirconium red zirconia nano-composite ceramic powder. The organic network preparation method comprises the following steps: mixing polyvinyl alcohol with water, heating, stirring, standing, and cooling to the room temperature, so as to obtain an organic network precursor solution; sequentially adding zirconium oxychloride, iron nitrate nonahydrate, silica sol and glutaraldehyde while stirring so as to generate Zr<4+> and coloration ion/organic network gel; after standing, soaking in ammonia water, washing with deionized water until the mixture is neutral, and drying and crushing to generate dry gel powder; calcining so as to obtain the ferrozirconium red zirconia nano-composite ceramic powder. According to the organic network preparation method, ceramic colorant pigments and zirconia ceramic powder are mixed at nano scale, the uniform degree of the mixture of the pigments and the ceramic raw material powder is greatly increased, the sintering temperature of composite powder is decreased, sintered red zirconia ceramic is high in strength and good in color generation, and the influences of carbon residues generated after the combustion of organic matters on the purity of the ferrozirconium red zirconia powder are reduced.

The invention relates to a special fertilizer for apple trees. The special fertilizer is prepared from the following components in parts by weight: 35-45 parts of dry sheep manure, 25-30 parts of bean cakes, 15-20 parts of rapeseed cakes, 3.7-6.7 parts of ammonium bicarbonate, 3.6-4 parts of urea, 1.2-1.8 parts of potassium dihydrogen phosphate fertilizer, 1.6-2 parts of distiller grain powder, 1.5-2 parts of carbendazim, 0.7-1 part of paclobutrazol, 0.6-1 part of fruit tree spotting agent, 1-2 parts of calcium carbonate, 0.7-1.5 parts of liquid fruit setting agent, 0.5-2.5 parts of calcium sulfate, 0.5-2.0 parts of ferrous sulfate and 0.5-2.4 parts of zinc sulfate. The contents of nitrogen, phosphorus and potassium in the special fertilizer provided by the invention are suitable for the growth of apple trees and apples, and the efficacies of all the elements can be sufficiently exerted; meanwhile, the organic matters and trace elements which are required by the growth of plants are also added into the fertilizer, so that the yield of the apples can be increased on a large area, and the quality of the apples can be improved on a large area; in addition, the raw materials are easily obtained, the preparation method is simple, the cost is low, not only is the yield of the apple trees increased, but also the problem that the applies are small in size, light in weight, slow in growth and easy to induce diseases is solved, and a new though is brought for cultivating the apple trees.

The invention relates to the field of medicine synthesis and discloses a novel preparation method and an intermediate for aripiprazole. In order to solve the technical problems of rigorous reaction conditions, high three waste discharge and low yield lying in the synthesis of aripiprazole in the prior art, the invention provides a new intermediate general formula (I) compound for synthesizing aripiprazole and a preparation method thereof. Simultaneously, the invention provides two synthesis methods for preparing aripiprazole through the general formula (I) intermediate. The preparation method comprises the following steps: taking 4-methyl-3-nitrophenol as raw material, obtaining the intermediate after the reactions of acylation, bromination, substitution, hydrolysis and decarboxylation, esterification, substitution, condensation, and the like, carrying out the reduction and ring closure reaction of the intermediate or carrying out the reduction reaction of the intermediate firstly and then the ring closure reaction of the intermediate, and obtaining aripiprazole. The method has moderate reaction conditions, simple operation, high yield, low cost and little environmental pollution, and is more suitable for the industrialized production.

The invention discloses Chinese medicinal wine for treating rheumatoid arthritis and a preparation method thereof, belongs to the Chinese medicinal wine and a preparation method, and particularly relates to the Chinese medicinal wine for treating rheumatoid arthritis and the preparation method thereof. The medicament is prepared from the following raw materials in parts by weight: 25-30 parts of rhizoma notopterygii, 30-40 parts of radix angelicae pubescentis, 25-30 parts of medlar, 25-30 parts of dogwood flesh, 25-30 parts of eucommia, 25-30 parts of root of bidentate achyranthes, 15-20 parts of dipsacus root, 25-30 parts of rhizoma homalomenae, 25-30 parts of hedychiumvillosum, 25-30 parts of scutellaria baicalensis, 25-30 parts of rhizome corydalis, 25-30 parts of angelica, 25-30 parts of rhizoma coptidis, 25-30 parts of gastrodia elata, 15-20 parts of white peony root, 20-25 parts of root of red-rooted salvia, 25-30 parts of Talinum crassifolium, 25-30 parts of pawpaw, 25-30 parts of safflower and 3,000-3,500 parts of spirit with alcohol strength of 48 or 50 degrees. The Chinese medicinal wine has the beneficial effects of readily available raw materials, simple preparation method, clear curative effect, formula advantage, price advantage, process advantage, curative effect advantage and cure and remission rate of reaching 90 percent, and is novel Chinese medicinal wine for treating the rheumatoid arthritis at present.

The invention relates to peach special-purpose fertilizer. The peach special-purpose fertilizer comprises, by weight, 35-45 parts of dry sheep manure, 25-35 parts of bean cake, 15-20 parts of rapeseed cake, 3.7-6.7 parts of ammonium bicarbonate, 3.6-4 parts of urea, 1.2-1.8 parts of potassium dihydrogen phosphate fertilizer, 1.6-2 parts of vinasse powder, 1.5-2 parts of carbendazim, 0.7-1 part of paclobutrazol, 0.6-1 part of a fruit tree spot remover, 1-2 parts of calcium carbonate, 0.7-1.5 parts of a Zuoguoling liquid, 0.5-2.5 parts of calcium sulfate, 0.5-2.0 parts of ferrous sulphate and 0.5-2.4 parts of malathion. The peach special-purpose fertilizer has nitrogen, phosphor and potassium contents suitable for peach and peach fruit growth and fully performs element effects. Through use of organic matters and trace elements needed by plant growth, peach fruit yield and quality are greatly improved. The peach special-purpose fertilizer utilizes easily available raw materials, can be prepared by a simple method, has a low cost, improves a peach yield, solves the problem that the peach fruit has a small volume, light weight and a slow growth rate and can easily produce diseases, and provides a novel idea for peach cultivation.

The invention provides a preparation method for a fat substitute. The preparation method comprises the following steps: with rice starch as a raw material, adding the rice starch and water to a batching tank, carrying out stirring to obtain starch slurry, and adding a pH adjusting liquid to make the pH value of the starch slurry in a range of 5-7; then adding alpha-amylase into the starch slurry to obtain a starch fermentation broth, and liquefying the starch fermentation broth by using the alpha-amylase to obtain dextrin; subjecting the dextrin to enzyme deactivation, filtration and concentration successively so as to obtain a concentrate; and finally, drying the concentrate so as to obtain dextrin powder, and subjecting the dextrin powder to sieving and cooling so as to obtain the finished fat substitute. The preparation method for the fat substitute provided by the invention solves the technical problems of high cost of conventional fat substitutes and influence on the sensory characteristics of food in the prior art.

The invention provides a catalyst for dimethyl ether preparation through low-temperature methanol dehydration and a preparation method as well as applications thereof. The catalyst is a modified macroporous temperature resistance sulfoacid cation exchange resin; and a general macroporous sulfoacid cation exchange resin is prepared or purchased, and subjected to fluorine substitution, complexation of a load AlCl3 and the like to obtain the target catalyst. The preparation method is characterized in that before fluorination, electron withdrawing groups do not need to be introduced to benzene rings of the macroporous sulfoacid cation exchange resin, and therefore, the catalyst is easy in availability of raw materials and environment-friendly; the fluorated macroporous resin catalyst has a good temperature resistance; and a solid superacid catalyst is obtained after the fluorated macroporous resin is subjected to complexation of AlCl3 and substitution, and has a good reaction activity on the dimethyl ether preparation through methanol dehydration at a low temperature, so that the yield of dimethyl ether is high, and the handling capacity of a reaction raw material is great.

The invention discloses a medicine for treating gynecologic inflammation and a preparation method thereof. The medicine for treating gynecologic inflammation comprises the following crude drugs: 60-80 g of peach kernels, 60-80 g of safflower carthamus, 90-120 g of angelica sinensis, 90-120 g of radix paeoniae rubra, 60-80 g of cortex moutan, 120-160 g of herba leonuri, 120-160 g of lonicera japonica, 90-120 g of forsythia suspense, 200-230 g of herba houttuyniae, 60-80 g of rhizoma corydalis, 30-40 g of cassia twig, 60-80 g of rhizoma atractylodis, 60-80 g of phellodendron amurense, 60-80 g of radix cyathulae and 90-120 g of radix paeoniae alba. According to the medicine for treating gynecologic inflammation and the preparation method thereof, quick effect and high curative ratio are achieved, relapse is not easily caused, drug resistance is avoided, antibiotics are saved, the raw materials are easy to get, the preparation method is easy, the cost is low, and toxic and side effect is avoided. The medicine is novel for treating gynecologic inflammation at present.

The invention provides a method for preparing zofenopril calcium. N-acetyl-L-oxyproline is adopted as a raw material. The method includes: a step of subjecting the N-acetyl-L-oxyproline and methanol to esterification, subjecting the obtained product and paratoluensulfonyl chloride to sulfonation, and subjecting the obtained product and thiophenol prepared from a sodium thiophenolate solution to thiophenyl substitution; a step of hydrolyzing the obtained product into an free acid by utilization of an alkali, performing recrystallization for purification, and performing deacetylation with hydrochloric acid to obtain (cis)-4-thiophenyl-L-proline hydrochloride; a step of reacting (S)-3-(benzoyl sulfhydryl)-2-methylpropanoic acid with thionyl chloride to obtain (S)-3-(benzoyl sulfhydryl)-2-methyl propionylchloride; a step of reacting the (S)-3-(benzoyl sulfhydryl)-2-methyl propionylchloride with the (cis)-4-thiophenyl-L-proline hydrochloride to obtain the free acid zofenopril; and a step of forming a potassium salt, purifying and reacting with a calcium chloride to obtain a calcium salt, thus obtaining a final product zofenopril calcium. The method has characteristics of easily available raw materials, simple preparation method, mild conditions, easy control, reasonable monitoring points in the preparation process, effective removal and control of impurities, capability of producing the final product with the needed crystal form preferentially in a high ratio, suitability for industrial production and large application value.

The invention discloses an additive for improving plastic hardness. The additive comprises the following components in parts by weight: 100 to 200 parts of modified starch, 20 to 50 parts of rosin, 10 to 30 parts of alkali lignin, 1 to 7 parts of straw mushroom extract, 1 to 3 parts of peregal, 0.1 to 0.3 part of acetic acid, 0.01 to 0.02 part of cerous nitrate and 1 to 2 parts of silicon dioxide. The additive for improving the plastic hardness can effectively improve the longitudinal hardness of the plastics, and meanwhile, can improve the transverse and longitudinal tensile stress of the plastics, so that the plastic has better performance; further, the raw materials of the additive are easily obtained; a preparation method is simple and easy to operate.

The invention discloses a thermoplastic elastomer composition as well as a preparation method and application thereof. The composition is prepared from the following raw materials in parts by weight:20-150 parts of a mixture of SEPS, SEEPS or SEPS and SEEPS, 20-150 parts of an ethylene-octene block copolyalkenamer, 20-200 parts of paraffinic oil, 20-160 parts of maleic anhydride grafted butadiene, 20-150 parts of maleic anhydride grafted polypropylene, 10-200 parts of rubber powder, 10-100 parts of silicone powder, 10-50 parts of an inorganic filler, 1.9-10 percent of DCP master batches, 1.9-10 percent of TMPTMA and 30-50 parts of PP particles. The preparation method comprises the following step of blending a thermoplastic elastomer material and the rubber powder with a two-step method toform a new thermoplastic elastomer blending system. A floor prepared by adopting the thermoplastic elastomer is high in wet traction, wear resistance and weather resistance.

The invention discloses an emulsion breaker for thick oil and a preparation method and application of the emulsion breaker. The emulsion breaker is prepared from, by weight, 1-5 parts of coconut diethanolamide, 7-15 parts of cis-butenedioic acid, 25-35 parts of zeolite and 5-12 parts of polyglycerol fatty acid ester. The zeolite and a prepared cis-butenedioic acid solution are heated and stirred to prepare a mixture A; polyglycerol fatty acid ester and a prepared coconut diethanolamide solution are heated and stirred to prepare a mixture B; the mixture A and the mixture B are mixed, heated, stirred and calcined at high temperature. The prepared emulsion breaker has the remarkable effects of being good in emulsion breaking effect, small in use amount, resistant to high temperature and low temperature, large in dehydration amount, high in dehydration speed and the like. The adopted raw materials are easy to obtain, the preparation method is simple, operation is convenient and rapid, the production cost is low, and the emulsion breaker is suitable for large-scale production.

The invention discloses whitening, anti-allergy and anti-wrinkle cream and a preparation method thereof. The whitening, anti-allergy and anti-wrinkle cream comprises the following raw materials of arbutin, butanediol, cetearyl alcohol ethyl hexanoate, a stearyl oxygen polydimethylsiloxane/polydimethylsiloxane copolymer, isopropyl isostearate, tocopheryl acetate, sodium hyaluronate, polydimethylsiloxane, glycerol, EDTA (Ethylene Diamine Tetraacetic Acid) disodium, alpha-bisabolol, a glycyrrhiza glabra root extract, phenoxyethanol, laureth polyether-7, magnesium ascorbyl phosphate and the balance of deionized water. The whitening, anti-allergy and anti-wrinkle cream takes the glycyrrhiza glabra root extract as a main active ingredient, the glycyrrhiza glabra root extract can penetrate into the skin, keep high activity, and effectively inhibit the activity of various enzymes in the melanin generation process and accelerate metabolism, so that the skin is tender, white and rich in elasticity, and the whitening, anti-allergy and anti-wrinkle cream is simple in formula, low in raw material cost, easy in condition control, stable in process and can be produced in the industrial scale and can be popularized and applied; and the prepared whitening, anti-allergy and anti-wrinkle cream has excellent stability and can be stored for a long time.

The invention provides a humidity-regulating phosphogypsum wall material suitable for a fabricated building and a preparation method of the humidity-regulating phosphogypsum wall material. The humidity-regulating phosphogypsum wall material comprises the following raw material components: in parts by weight, 100 parts of phosphorus building gypsum, 0.3-0.5 part of a water reducing agent, 0.05-0.15part of an air entraining agent, 5-15 parts of modified composite diatomaceous earth and 0.05-0.15 part of a retarder, and vitrified microbeads are added at an amount of 10-20% of the volume of the phosphorus building gypsum. The industrial waste phosphogypsum is adopted as a main raw material, the humidity-regulating phosphogypsum wall material with rapid forming curing and a humidity-regulatingfunction is obtained through introduction of lightweight components, humidity-regulating components and other functional components, and can be applied to inner walls of fabricated buildings, so thatthe way of resource utilization of phosphogypsum solid waste is enriched; and the humidity-regulating phosphogypsum wall material can be widely applied to fabricated civil buildings.

The invention relates to a special insulation material for buildings, and a preparation method thereof. The raw materials of the special insulation material comprise, by weight, 3-6 parts of polytetrafluoroethylene, 5-8 parts of polyethylene terephthalate, 3-5 parts of polyvinylidene fluoride, 20-35 parts of polyester resin, 4-6 parts of silica, 10-15 parts of vinyl resin, 5-7 parts of amide, 2-4parts of phthalate, 3-6 parts of polyethylene glycol and 5-10 parts of polyvinyl alcohol. The material has the advantages of easy availability, simple preparation method, low cost, environmental protection and greenness, compact structure, good oxidation resistance, high dispersiveness, good resistance to water and moisture, strong electrical insulation property, high safety, large tensile strength, strong compressive strength, good corrosion resistance, long service life and high comprehensive economic benefit.