437results about How to "Adapt to industrial production" patented technology

The invention relates to a preparation method of crosslinked polymer microphere with uniform particle size. By adopting the process of dispersion and polymerization, styrene or acrylic ester is taken as a monomer; a monodisperse crosslinked polymer microphere with uniform particle size is prepared by steric hindrance dispersant and multi-functional crosslinker. The microphere has regular spherical and solid, a smooth surface, no damage or defect, and the strength and flexibility meet the requirements of producing ACF.

The invention discloses a hydrophobic type glass wool blanket and an adhesive proportion thereof. The hydrophobic type glass wool blanket is composed of centrifugal glass wool fibers and a highly hydrophobic adhesive, wherein the content of the adhesive is 3-25%, and the adhesive contains water soluble resin, a silane coupling agent, a moisture repellent, a curing agent, a pH conditioning agent, dust laying oil and softened water. According to the invention, the water soluble resin with good mobility serves as a raw material, so that the prepared glass wool blanket has excellent hydrophobic performances. At the same time, the invention relates to the adhesive proportion of the hydrophobic glass wool blanket. The adhesive product in the invention is excellent in bonding strength, hydrophobic performances, hydrolytic resistance, rebound resilience and corrosion resistance, and widens the application field of the glass wool blanket, such that the glass wool blanket can be used for thermal insulation and sound insulation in the fields of buildings, aviation, aerospace, navigation and the like.

The invention discloses a streptomyces hygroscopicus and applications thereof. The streptomyces hygroscopicus strain is preserved in China Center for Type Culture Collection with CCTCC NO. of M 207200 and the preservation date of December 14th, 2007. The strain with CCTCC NO. of M 207200 is a currently-separated natural strain with high sirolimus yield and excellent fermentation performance. The fermentation yield of the sirolimus-producing strain can reach over 600ug/ml, has relatively less fermentation byproducts, lowers post extraction difficulty, can reach the product yield of over 30 percent, and is applicable to industrial production.

The invention relates to a preparation method of crystal L-arginine alpha-ketoglutarate, comprising the following steps: preparing water solution of L-arginine, and slowly adding alpha-ketoglutaric acid into the water solution, wherein the mol ratio of L-arginine and alpha-ketoglutaric acid is 1:1 or 2:1; reducing pressure and concentrating the alpha-ketoglutaric acid at 50-80 DEG C after complete dissolution, removing water accounting for 20-60 percent of the total volume and cooling to 20-30 DEG C; slowly adding an organic hydrophilic solvent or a mixed solvent of a polar hydrophilic solvent and a non-polar hydrophilic solvent; and carrying out temperature reduction, crystallization, filtering, washing and vacuum drying to obtain the crystal L-arginine alpha-ketoglutarate. Compared with the prior art, the invention has the advantages of reasonable process, simple steps, easy operation, good crystal form of the obtained product, difficult caking, convenient transportation and use, high purity (more than or equal to 98 percent) and high yield (80-86 percent) of the product, and the like, and is suitable for industrialization production.

This invention discloses a method for preparing Ophiopogon japonicus polysaccharide MDG-1 with anti-myocardial ischemia function. The method comprises: extracting Ophiopogon japonicus roots with water, precipitating with alcohol to obtain crude polysaccharide, separating by ultrafine filtration, eluting the concentrate with water in a macroporous weak-base anion exchange resin, collecting eluates 4-8 volume times of the column, incorporating the eluates, and drying to obtain Ophiopogon japonicus polysaccharide MDG-1 with purity greater than or equal to 90%. The method has such advantages as short time and is suitable for mass production.

The invention discloses a preparation method of silicon carbide short fiber toughened and strengthened silicon carbide ceramics, which takes silicon carbide powder, yttrium aluminum garnet and silicon carbide short fiber as the main materials and sequentially comprises the following steps of: 1) adding the main materials, a caking agent and a dispersant into de-ionized water and preparing water-based silicon carbide slurry after ball-mill mixing; 2) adopting a sponging drying technique to carry out spray drying to the water-based silicon carbide slurry; 3) adopting 160-200MPa to carry out dry pressing and shaping to the obtained strengthened silicon carbide palletizing powder to obtain a silicon carbide biscuit; and 4) arranging the silicon carbide biscuit in a vacuum pressureless sintering furnace for sintering to obtain the silicon carbide short fiber toughened and strengthened silicon carbide ceramics. The invention simultaneously provides the silicon carbide short fiber toughened and strengthened silicon carbide ceramics prepared by the method. The silicon carbide ceramics is characterized by larger fracture toughness, high mechanical strength, and the like.

The invention discloses a preparation method of high-porosity silicon-carbide porous ceramics. According to the preparation method, 60 to 80% of silicon-carbide powder, 10% of boron carbide, 5 to 25% of iron oxide and 5% of polyvinyl alcohol by weight are adopted as raw materials, and the steps of mixing, spray granulation, extrusion forming, drying and sintering are sequentially carried out, wherein the technical conditions for sintering are as follows: a dried biscuit is sintered for 10 to 15 hours at 2100 to 2200 DEG C through pressureless sintering technology so as to obtain the high-porosity silicon-carbide porous ceramics. The silicon-carbide porous ceramics prepared by the method disclosed by the invention has the characteristics of controllable aperture size, high apparent porosity, and relatively large specific surface area, and strength of the silicon-carbide porous ceramics meets the application requirement.

A method for preparing expandable graphite or graphene by utilizing waste cathode carbon formed in electrolytic aluminum production is disclosed. The method includes (1) a step of crushing, adding a strong oxidant and water into the crushed product, stirring, rolling or wet-grinding the mixture, and performing a hydrothermal oxidation reaction; (2) a step of controlling the temperature, pressurizing, feeding supercritical or liquid carbon dioxide, mixing the mixture by stirring the mixture, allowing the mixture to stand, adjusting the temperature and pressure, performing separation to obtain aqueous slurry and graphite oxide slurry fluid, and washing the graphite oxide slurry fluid with water to remove impurities; and (3) a step including 1) a manner of performing atomization, expansion and stripping to remove the carbon dioxide; or 2) a manner of adding a reactant for reduction, and then performing atomization, expansion and stripping to remove the carbon dioxide, or further performing denitrification and deoxygenation; or 3) a manner of adding a fluorinating agent, heating the mixture, performing a fluorinating reaction, and performing atomization, expansion and stripping to remove the carbon dioxide. Expanded graphite powder, graphene powder, denitrified deoxygenated graphene powder or fluorinated graphene powder which are prepared by the method have excellent properties. The method is simple, efficient, clean, free of secondary pollution, low in energy consumption and suitable for industrial production.

The invention relates to the technical field of traditional Chinese medicine, in particular to a traditional Chinese medicine composition with the effect of sensitive skin repairing and a fermented substance and application thereof. In order to achieve the purpose of sensitive skin repairing, the traditional Chinese medicine theory in our country serves as guidance, traditional Chinese medicine raw materials are screened through extensive experiments for a long time, dried rehmannia roots, radix pseudostellariae, fructus cnidii, fructus kochiae, licorice, radix gentianae, belamcanda chinensis and oroxylum indicum are effectively combined together, and a mixture or an extract which is obtained through water extraction is obtained. The effects of all the raw materials can generate the synergistic effect; the traditional Chinese medicine composition has the effects that a skin allergic reaction is inhibited, skin immunity is improved, quick repair of a skin lesion part is promoted, and a skin cuticle barrier is reconstructed; and when the traditional Chinese medicine composition is applied to cosmetics, the significant sensitive skin repair and protection effects are achieved.

The invention discloses blueberry scented tea. The blueberry scented tea is prepared from the following raw materials in parts by weight: 40-50 parts of dried blueberry granules, 5-15 parts of blueberry leaves, 30-40 parts of roses and 5-15 parts of a flavor substance. The blueberry scented tea disclosed by the invention is unique in taste and convenient to drink; moreover, a preparation process is simple, a blueberry utilization rate is increased, economic benefits of blueberry farmers are improved, and utilization on blueberry effective ingredients is further enhanced. Compared with the current fruit scented tea, the blueberry scented tea prepared by the invention is purple, tastes sour and sweet, reserves rose scent and is not muddy after being brewed, is consistent with modern people's requirements on natural, healthy, safe and delicious drink, and is ideal in stability, convenient to store and instant to drink.

The invention relates to a device for wetly extracting effective ingredients in a plant by using microwave. The device consists of an extraction component, a stirring component and a microwave radiation heating component. The device is characterized in that the extraction component consists of a plurality of circular barrels with filter screen cavities and baiting flat gate valves; the stirring component consists of a motor, a speed reducer, a stirring shaft, a sealing shaft sleeve and a plurality of layers of stirring paddles; and the microwave radiation heating component consists of a plurality of groups of microwave generators arranged on the top and the periphery of the barrels and a protective cover. The device directly radiates and heats a dry plant material by adopting microwave and then adopts an extraction method by adding a solvent so as to greatly save the energy consumption and the extraction time and improve the quality and yield of a subject matter; and the device can be widely applied to the industries of pharmacy, food and chemical engineering.

The invention discloses a high temperature resistant resin-based friction material. The material is composed of the following raw materials of, by weight, 6-10 parts of modified phenolic resin, 6-8 parts of butadiene-acrylonitrile rubber powder, 4-8 parts of reinforced fibers, 10-14 parts of a friction modifier, 2-4 parts of an epoxy resin lubricant, and 12-14 parts of a filler. According to the high temperature resistant resin-based friction material provided by the invention, phenolic resin is modified through a cashew nut shell oil modifier, and the modified phenolic resin is more excellentin performance and applied to preparation of the resin-based friction material; the abrasion resistance, the high temperature resistance and the friction coefficient stability of the prepared resin-based friction material are improved; and sources of the raw materials are extensive, and the high temperature resistant resin-based friction material is applicable to industrial production and has good economical and social benefits.

The invention belongs to the field of medicine chemical industry and particularly relates to a preparation method for tedizolid phosphate. According to the preparation method provided by the invention, intermediates in the steps and the final product are high in purity. In addition, by using diiso-propylamido dibenzyl phosphite as a phosphorylation reagent, a dimerized product is further avoided, so that the preparation method provided by the invention is higher in yield. The preparation method provided by the invention is relatively short in route and mild in reaction condition, and further avoids use of toxic, irritant and strongly corrosive reagents, so that the preparation method is green and environmentally friendly. Meanwhile, ultralow temperature reaction is avoided, so that the preparation method is simple to operate, and the tedizolid phosphate is easy to prepare and high in production efficiency. Thereofe, the preparation method provided by the invention is suitable for industrial production.

The invention discloses a composition which comprises an enzyme. The enzyme has the activity of glucosaccharase, and provides a degrading function in cellulose degradation. The enzyme is a protein shown in (a) or (b), wherein (a), the amino acid sequence of the is shown as SEQ ID NO:1; (b), one or several amino acid are displaced, removed out or added into the amino acid sequence in the (a), and the protein is derived from the (a) and has the activity of the glucosaccharase. DNA molecules of the enzyme are coded. Carriers are recombined and comprise the DNA molecules and adjusting sequences connected with the DNA molecules and used for conducting expressions. Host cells comprise the DNA molecules or the recombined carriers. Compared with the beta-glucosaccharase (with the amino acid sequence of SEQ ID NO:1), a beta-glucosaccharase mutant with the amino acid sequences of SEQ ID NO:6 and SEQ ID NO:7 has the beneficial effects that the heat stability is improved; and the hydrolysis rate of compound enzyme liquid can be improved in enzyme system compounding.

The invention relates to an innocent treatment method for arsenic containing mixed salt. The method comprises the following steps of: (1) uniformly mixing arsenic containing mixed salt and slag or/and cullet, and controlling the content of arsenic in the mixed material at1.0-4.8wt% to obtain a mixed material; (2) feeding the mixed material into a furnace, heating to 1150-1250 DEG C, and insulating and melting for 0.4-2.4 hours to obtain melt; and (3) pouring the melt to a die to prepare solid or entering into water for water-quenching while the melt is still hot to obtain particle arsenic containing solid. The method for treating the arsenic containing mixed salt is free from environmental hidden danger, and free from secondary pollution, and the whole process is simple in flow, short in processing time, simple and convenient to operate, low in energy consumption, and suitable for industrialized production.

The invention relates to the technical field of preparation of edge-sealing strips, and concretely relates to a preparation technology for an edge-sealing strip subjected to co-extrusion molding. The preparation technology comprises the following technological steps: step A, performing co-extrusion on a substrate-layer raw material and a hot-melt-adhesive-layer raw material possessing a same color, so as to prepare the edge-sealing strip possessing the substrate layer and the hot-melt-adhesive layer; B, cooling and curing the edge-sealing strip; and C, for usage, using hot wind or a hot gas or laser to melt the hot-melt-adhesive layer of the edge-sealing strip, so as to enable the face of the edge-sealing strip, which possesses the hot-melt-adhesive layer, to be adhered to a product to be subjected to edge sealing. The adhesive force of the hot-melt-adhesive layer is high, and degumming phenomenon is avoided. By employing hot wind or the hot gas or laser for melting the hot-melt-adhesive layer, edge sealing is performed. Seamless connection between the edge-sealing strip and a product to be subjected to edge sealing, such as medium density fiberboards, shaving boards, plywood and other artificial plates, is realized, and a hot melt adhesive is not needed for coating, so that a production process of coating a hot melt adhesive is saved, the product quality and the production efficiency are substantially improved, the production and application cost is reduced, and the preparation technology is relatively suitable for industrialized production.