214results about How to "With industrial production" patented technology

A nitrogen doped nano-class TiO2material with photocatalytic activity is prepared by doping N into TiO2 crystal. It features that its energy gap can be triggered by visual light, realizing the full-frequency absorption to visual light for increasing its light quantum efficiency.

The invention discloses a preparation method of glycolide. According to the preparation method, high purified glycolic acid crystal is taken as a raw material, and high-purity high-yield glycolide crystal can be synthetized through a series of steps such as dehydration polycondensation, melt phase polycondensation, depolymerization reaction and recrystallization purification. Glycolic acid oligomer is generated through glycolic acid polycondensation, and almost all the glycolic acid oligomers are depolymerized for preparing the glycolide under the action of a high efficient catalyst, the usage amount of the catalyst is low, the preparation technology is simple, the yield is high and the preparation method has industrial production potential.

The present invention relates to preparation process of core-shell material and hollow material, and is especially water phase one-step synthesis process for preparing nanometer crystallized anatase type titania material in core-shell and hollow structure. Water soluble titanium peroxide precursor is treated through a sol-gel process so as to coat a nanometer titania layer onto the surface of polystyrene, and the nanometer titania layer in the shell is crystallized directly at relatively low temperature to form nanometer anatase type titania without needing sintering. Furthermore, the precursor may be controlled properly, so that the polystyrene core serving as the template may be dissolved spontaneously after the shell is formed and crystallized and nanometer hollow titania may be obtained directly in water phase. The present invention is simple, easy to operate, low in cost and suitable for batch production, and may find wide application in different aspects.

The invention discloses Yueju Baohe dispersible tablets and a preparing method thereof. The Yueju Baohe dispersible tablets are prepared from, by weight, 10-50% of traditional Chinese medicine extract, 10-80% of filler, 5-50% of internally added disintegrant, 5-15% of externally added disintegrant, 0.1-10% of corrigent, 0.1-20% of wetting agent and 0.05-20% of lubricant. The traditional Chinese medicine extract comprises, by weight, 60-120 parts of ginger-processed fructus gardeniae, 60-120 parts of medicated leaven stir-fried with bran, 60-120 parts of vinegar-processed rhizoma cyperi, 60-120 parts of rhizoma chuanxiong, 60-120 parts of rhizoma atractylodis, 60-120 parts of radix aucklandiae and 60-120 parts of semen arecae. The preparing method comprises the steps of material preparation, extraction, tablet preparation and packaging. The Yueju Baohe dispersible tablets can soothe liver and dispel melancholy, whet the appetite and promote digestion, and are used for treating symptoms like dyspepsia, qi depression and stasis, poor appetite and thoracico-abdominal swelling pain.

The present invention belongs to the field of Chinese medicine preparing technology. The ginkgo leaf extract has total flavone and total terpene lactone content over 80 %, total flavone content over 70 %, flavonoid glycoside content over 40 % and total terpene lactone content over 10 %. The extraction process includes the following steps: extracting, purifying and separating, concentration, drying, etc. Compared with available technology, the present invention has the advantages of reasonable technological path, being suitable for industrial production, low production cost, high extracting rate of effective components, etc. The present invention also discloses the infusion liquid and powder for injection with the ginkgo leaf extract and their preparation process. The ginkgo leaf extract has wide application in medicine for treating cardiac vascular diseases.

The invention discloses Pantoea agglomerans B50l CGMCC No.1655 and fermenting cultivating method and application. The method includes the following steps: inoculating the Pantoea agglomerans B50l CGMCC No.1655 into triangle bottle to gain seed liquid, inoculating the seed liquid into fermenting jar special cultivating medium for 48-96 hours. It has good effect to avoid disease, high effect efficiency, high biology safety and simple manufacture technology.

The invention discloses a process for preparing core-shell polysiloxane complex particles. It includes the following steps: adding organosilane into mixtures of water and/or organic solvent to perform hydrolytic reaction with alkali or acid; mixing the obtained hydrolysate solution with polymer particles as core materials of core-shell complex particle or its dispersion, then adding alkaline substances to produce core-shell polysiloxane complex particles. The method of this invention even can produce core-shell particles with polysiloxane as its shell layer without core materials treatment by coupling agents, and can adopt various polymer particles with grain diameter of 0.01-100ª–m as core materials, and can easily control the shell thickness of the complex particles. The invention can easily obtain the core-shell polysiloxane complex particles and has a high productivity, so it has an industrial production prospect.

The invention provides piezoelectric-triboelectric hybrid type self-driven electronic skin. The skin characterized in that the skin comprises a triboelectric sensing part and a piezoelectric sensing part arranged at the lower side of the triboelectric sensing part; the triboelectric sensing part comprises a flexible transparent porous electronegative film and a first flexible conductive fabric electrode arranged at the lower side of the flexible transparent porous electronegative film; the piezoelectric sensing part comprises a piezoelectric nanofiber film, a second flexible conductive fabricelectrode and a third flexible conductive fabric electrode, wherein the second flexible conductive fabric electrode and the third flexible conductive fabric electrode are arranged at the upper side and lower side of the piezoelectric nanofiber film respectively; the piezoelectric nanofiber film is obtained through an electrostatic spinning technology; and the flexible transparent porous electronegative film is of a porous structure prepared by taking a lotus leaf as a template. The multifunctional flexible self-driven electronic skin of the invention does not need to be driven by an external additional power source, and can ensure the accuracy of sensing and the wearing comfort of a human body.

The present invention discloses Bacillus subtilis gene engineering bacterial producing Neu5Ac, a construction method and an application thereof. According to the present invention, according to the gene engineering bacterial, genes for coding UDP-N-acetyl glucosamine epimerase and Neu5Ac synthetase are introduced into Bacillus subtilis so as to be expressed, and expression of glucosamine 6-phosphate synthetase of the Bacillus subtilis is enhanced to construct the complete metabolic pathway from glucose or glycerol to Neu5Ac in the Bacillus subtilis so as to utilize glucose or glycerol as a substrate to carry out fermentation culture so as to produce Neu5Ac; and the adopted Bacillus subtilis is widely used in the food industry, is safe and harmless, and is suitable for production of Neu5Ac required by food and health products.

The invention relates to multifunctional comfort fiber with functions of phase transition temperature regulation, moisture absorption and moisture wicking. According to the fiber, an interpenetrating network composite phase transition material is adopted as a heat storage and temperature regulation material, a fiber-forming polymer is adopted as a matrix, a pore-forming agent and a compatibilizer are added to prepare a spinning raw material, and a melt spinning process is adopted to prepare the multifunctional comfort fiber. The spinning raw material preparation method comprises: mixing the interpenetrating network composite phase transition material and the fiber-forming polymer according to a mass ratio of (95-60):(5-40), then adding the pore-forming agent and the compatibilizer, and uniformly mixing, wherein the mass of the pore-forming agent is 0-10% of the total mass of the interpenetrating network composite phase transition material and the fiber-forming polymer, the mass of the compatibilizer is 1-5% of the total mass of the interpenetrating network composite phase transition material and the fiber-forming polymer, the pore-forming agent is the PEG with the molecular weight of 1000-2000, the compatibilizer is one or a plurality of materials selected from PP-g-PEGA, PP-g-PEG, PET-g-PEGA, PEGA, montmorillonite, and the like. The phase transition temperature range of the multifunctional comfort fiber is 30-55 DEG C, the melting phase transition enthalpy is 5.24-29.12 J/g, the breaking strength is 3.0-3.5 cN/dex, and the thermal decomposition temperature is more than 400 DEG C.

The invention discloses a preparation method of a porous nano flaky nickel phosphide material loaded by multiple substrates. The preparation method comprises the following steps: firstly, carrying outultrasonic cleaning on a substrate, putting the substrate into a catalyst solution to carry out loading of an electroless nickel plating catalyst, putting the substrate loaded with the catalyst intoan electroless nickel plating solution to carry out electroless nickel plating, and finally placing phosphorus at the bottom of a crucible, placing the nickel-plated substrate above the phosphorus, covering the crucible with a cover, and putting the crucible in a tubular furnace for phosphating so as to obtain the porous nano flaky nickel phosphide material loaded by the substrate. The method is simple in process, low in cost and short in period. The prepared nickel phosphide/conductive substrate material has high electrocatalytic hydrogen evolution activity in an acidic electrolyte, has verylow overvoltage potential and Tafel slope, has high stability, is good in mechanical property, can be directly used as a hydrogen evolution electrode to assemble an acidic electrolytic cell, and has avery high application value.

The invention provides a novel preparation method of an afatinib compound. Raw materials and reagents used in the preparation method have the advantages of low cost, stable chemical property and convenience in long-term storage and the content of an impurity cis-isomer in the prepared afatinib compound is very low.

The invention provides Jiangzhining dispersible tablets and a preparation method thereof. The Jiangzhining dispersible tablets are prepared from the following raw materials: 10-60% of traditional Chinese medicine extract, 15-70% of filling agent, 5-50% of internally added disintegrating agent, 5-15% of externally added disintegrating agent, 0.1-15% of flavoring agent, 0.1-12% of wetting agent, 0.05-5% of lubricating agent and 0.1-20% of flow aid, wherein the traditional Chinese medicine extract comprises the following raw materials: hawthorns, radix polygonum multiflorum preparata, semen cassiae and lotus leaves. The Jiangzhining dispersible tablets have the functions of reducing blood lipid and blood pressure, tonifying middle-Jiao and qi and strengthening and consolidating body resistance, have good solubility and dispersibility, high dissolution rate and good bioavailability, are fast in body distribution, have stable quality and good tastes, are convenient to take and can be swallowed and chewed.

The invention discloses a preparation method for a surface-reinforcing coating of a copper crystallizer. The method employs a plasma powder built-up welding or spray welding technology. Plasma between a welding gun and the surface of the copper crystallizer is sent to an alloy powder, and the alloy powder and a copper base material are melt under the high temperature of plasma and form a molten pool, the technological parameters of built-up welding or spray welding are adjusted for enabling the copper-plate base material to be slightly molten, the welding gun moves forwards and forms a welding channel, and welding channels reciprocates and are overlapped for forming the metallurgy combined reinforcing coating on the surface of the copper crystallizer. The method helps to effectively solve the metallurgy combination problem between the coating and the copper crystallizer base body, possesses advantages of both production efficiency and cost, and makes industrialization of the metallurgy-combined copper-crystallizer surface reinforcing coating possible.

The invention discloses a detoxication method for jatropha curcas and meal thereof. The method comprises the following steps: husking, crushing and flaking the jatropha curcas, then adding 12%-18% of hot water for hardening and tempering, and steaming and stir-frying for 70-100 minutes at the temperature of 95-110 DEG C in a steaming and stir-frying pot; squeezing materials till the residual oil content is 14-17%, soaking a press cake in a No. 6 solvent or n-hexane for 3-5 times till the residual oil content is reduced to 0.3%-1.5%, and performing direct steaming and stir-frying on jatropha curcas meal for exsolution so as to reduce the water content to 5%-8%; and extracting extracted meal with ethanol, and performing the direct steaming and stir-frying on the ethanol extracted meal for exsolution so as to reduce the water content to 10%-12%, thus obtaining the detoxicated jatropha curcas meal. By adopting the method, the purpose of detoxicating the jatropha curcas can be simultaneously achieved while the oil making process is performed, the process is simple, the production cost is low, and the loss of the raw materials is low, thereby having value for industrial production. The detoxicated meal of the jatropha curcas, which is obtained by using the method, can be used in the feed industry as a feed protein additive.

The invention relates to a preparation method and application of a honeycomb type sulfur dioxide catalyst, particularly relates to a honeycomb type catalyst for oxidizing sulfur dioxide into sulfur trioxide and a preparation method of the honeycomb type catalyst, and belongs to the technical field of environmental purification. Silicon oxide or another substance such as silicon-aluminum oxide is used as a carrier, and a product is formed after active components and forming auxiliaries are added into the carrier and is dried and calcined to prepare the honeycomb type sulfur dioxide catalyst. The honeycomb type sulfur dioxide catalyst is prepared by the mixing preparation method, and the method includes dissolving the active components or dissolving the active components and cocatalyst compositions to obtain liquor; and mixing, kneading, ageing, drying and calcining the liquor, the carrier and the forming auxiliaries to form the catalyst. The catalyst has the advantages of wide application range, low cost, high strength, simplicity and feasibility in operation, and the like, and is applicable to industrial production. In addition, the honeycomb type sulfur dioxide catalyst can be widely used for oxidizing sulfur dioxide into sulfur trioxide and treating sulfur dioxide generated in various combustion processes and contained in industrial waste gas.

The invention discloses a method for purifying ethyl acetate, which comprises the steps of: sequentially adding 4-6wt% sodium sulfite solution and saturated calcium chloride solution into industrial-grade ethyl acetate serving as a raw material; stirring to remove organic impurities in ethyl acetate; then sequentially adding anhydrous potassium carbonate for drying and 4A molecular sieve for adsorbing and purifying; and finally collecting purified ethyl acetate by a rectification method, wherein the purity of ethyl acetate purified by the method is more than 99.5%. Compared with the prior art, the method is safe, simple and convenient in the purification process, and can save energy and reduce emission; after being treated, the added purifying agent can be recycled, so that the method is in accordance with the requirements of green chemical industry and environmental protection; and the ethyl acetate product purified by the method is stable in quality and high in purity, and has the prospect of industrial production.

The invention discloses a silver nitrate purifying method. Industrial-grade silver nitrate is taken as the raw material; the deionized water is added into the silver nitrate; stirring operation is conducted to dissolve the silver nitrate into the deionized water; then a complexing agent (A) independently researched and developed by the company is added to hydrolyze and precipitate various impurities; and the filtered solution is collected through the conventional method to obtain the purified silver nitrate. The purity of the silver nitrate obtained through the silver nitrate purifying method is up to more than 99.99%, the yield is 95-98%; the contents of foreign ions of both heavy metal and precious metal are lower than 1 ppm; compared with the prior art, through the adoption of the complexing agent (A) independently researched and developed by the company, the foreign ions of heavy metal and precious metal in the industrial-grade silver nitrate can be effectively removed; the product quality is stable; the operation is simple and convenient; the energy consumption is low; the purity is high, and therefore, the silver nitrate purifying method has the prospect of industrial production.

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 a preparation method and application of an iridium oxide nanoparticle catalyst. A mixed solution containing a polymer and an iridium-containing compound is uniformly applied toa treated conductive substrate; calcining in an air atmosphere is carried out to convert the iridium-containing compound into iridium oxide and the polymer is decomposed at the same time; the iridiumoxide nanoparticle material which is small in particle size, amorphous and of a porous structure is obtained, polymers remaining on the iridium oxide nanoparticle material are removed through a plasma generator, and the surfaces of iridium oxide nanoparticles are rich in hydroxyl. The film formed by the polymer in the mixed solution is utilized to solve the problem that the iridium-containing compound is agglomerated to form large particles when being calcined to generate the iridium oxide nanoparticles, thereby obtaining the small-particle-size iridium oxide nanoparticles. Besides, the plasma generator is used for removing residual polymers in the calcining process, the contact area of the iridium oxide nano particles is increased, and therefore the catalytic efficiency of the iridium oxide nano particles is improved.

The invention discloses photosensitive antibacterial hydrogel and a preparation method thereof.The method comprises the following steps that 1, imvite and a photosensitizer are dissolved into deionized water respectively to form an imvite water solution and a photosensitizer water solution; 2, the imvite water solution and the photosensitizer water solution are mixed to obtain a photosensitive water solution modified by imvite; 3, polyvinyl alcohol-aminostyrylpyridinium salt is dissolved into deionized water to form a water solution which is mixed with the photosensitive water solution modified by imvite obtained in the step 2; 4, finally, the mixed solution obtained in the step 3 is placed under an ultraviolet lamp to be irradiated, so that the photosensitive antibacterial hydrogel is obtained.The photosensitive antibacterial hydrogel can generate phototoxic singlet oxygen under visual light irradiation, the singlet oxygen can efficiently kill viruses, bacteria and fungi, and no drug resistance is generated.