257results about How to "Meet the needs of industrialization" patented technology

The invention provides a method for preparing squalene based on tobacco as a raw material. The method comprises the following steps: smashing dried tobacco leaves, leaching out fat-soluble substances with an organic solvent, and removing the organic solvent in the fat-soluble substances so as to obtain crude tobacco squalene; passing the crude tobacco squalene through a silica gel chromatograohiccolumn, eluting with the organic solvent, collecting eluent, and removing the organic solvent by using a decomposition distillation method so as to obtain the fine squalene. The content of the squalene in the crude squalene is more than 35%, the content of the squalene in the fine squalene is more than 95%. Tobacco resources are abundant and can meet industrial requirement; in the method, waste tobacco and cigarette fine waste in the cigarette production can be fully utilized to prepare the squalene; and according to the invention, a technical basis is provided for development and utilizationof the tobacco squalene, especially for the application of the tobacco squalene in the aspect of cigarette production. Thus, the social benefits and economic benefits are great.

The invention discloses a method for preparing isosorbide by taking supported heteropoly acid as a catalyst. Sorbitol from a biological radical is used as a raw material to prepare the isosorbide directly through dehydration reaction. The method comprises the following steps: putting the catalyst into a constant temperature section of a fixed-bed reactor; introducing a reactant sorbitol solution into a reactor, and performing reaction through a catalyst bed after gasification; and separating a mixture obtained after the reaction to obtain the isosorbide. The method has simple operation process of the reaction, low production cost and light environmental pollution; the selectivity and yield of the isosorbide reaches up to 75.2 percent and 71.4 percent respectively, and the catalyst is easy to separate and recycle; and the method is a novel method which meets industrial demands and has strong practicality.

The invention discloses a preparation method of isobide. Sorbierite is used as raw material and H3PO4 modified tetravalent metal oxides are used as catalyst to prepare the isobide by the dehydration reaction. The method has the advantages of simple operation process, low production cost, little environmental pollution, easy separation and recovery. The used modified catalyst has obvious catalytic effect. The selectivity of the isobide reaches as high as 63.49 percent, and the yield reaches as high as 62.23 percent. With strong practicality, the method is novel and can satisfy the industrialization requirements.

The invention relates to a feed fermented by utilizing traditional Chinese medicine drugs and a preparation method of the feed. The feed is prepared from the traditional Chinese medicine drugs, straws and bran through fungus bacteria liquid in a fermenting manner and a probiotics microbial agent is added. The feed comprises 80-120 parts of the traditional Chinese medicine drugs, 40-100 parts of straws, 10-40 parts of bran, 1-10 parts of fungus bacteria liquid and 10-50 parts of a probiotics microbial agent. The feed provided by the invention is high in the content of crude protein, the growth of poultry and livestock can be promoted, the feed has the obvious effect of increasing the weight of the poultry and the livestock and improving the feed conversion efficiency, and the effect is superior to that in the prior art.

The present invention provides process of extracting squalene from Weiju eucalyptus, and the process includes the steps of preparing material, extraction, separation and purification. The process has low cost, convenient operation and high yield, and can utilize the rich Weiju eucalyptus resource to meet the industrial need and extend the industrial chain of timber industry and papermaking industry.

The invention belongs to the chemical technology field, and discloses a method for preparing methyl ethyl ketone. The methyl ethyl ketone is prepared from 2,3-butanediol by dehydrating in the presence of ZSM-5 or NaY molecular sieve catalyst. Under process conditions, the catalyst is not easily deactivated and has good stability. The method has the advantages of high substrate conversion and product yield, simple process, low production cost and less environmental pollution, and can satisfy industrial requirement. With the method, the conversion rate of 2,3-butanediol is 90.5%-100%, and the selectivity of methyl ethyl ketone is 83.7%-91.3%.

The invention relates to a method for preparing a nano material with large thickness and area through acute plastic deformation. The method comprises the following steps: adopting carrying current acute stirring friction forced highly undercooled control technology under the action of electromagnetic vibration in-situ compound electromagnetic field to prepare a metallic nano grain material and a ultrafine grain material with large thickness and area; adopting an electromagnetic vibration coil to ensure that a stirring head carries out high-speed stirring and electromagnetic vibration stirring friction composite motion combined with electromagnetic vibration at a certain frequency; and forming an alternating electromagnetic field of a certain intensity inside a workpiece. Under the joint action of carrying current stirring friction and a forced highly undercooled control temperature mechanism, coarse grain structure of the metal surface in a certain thickness undergoes acute plastic deformation and breaks to form stable nano grain and ultrafine grain structure; thus, the method realizes the preparation or surface modification of the metallic nano material with large thickness and area and uniform structure, and can also be used in stirring friction welding.

The invention discloses a method for preparing acrylic acid, which takes lactic acid as material and modified NaY zeolite as activator to directly prepare acrylic acid through dehydration reaction. The procedure is as follow: the activator is encased at the constant-temperature segment of a fixed bed reactor; the fixed bed with the activator is heated to 300-450 DEG C under the protection of N2; the reactant lactic acid solution is added into the reactor; after aerification, the reactant lactic acid solution reacts at the fixed bed with the activator; the mixture after reaction is cooled and separated, obtaining acrylic acid. The reaction of the method is simple in operation, low in cost, with little pollution to the environment; therefore the method is a new method that satisfies industrial needs and is strongly practical.

The invention provides an arylamine compound and an organic luminescent device thereof, and relates to the technical field of organic photoelectric materials. The arylamine compound is obtained by connecting substituted or un-substituted carbazole, benzothiophene and a thick derivative of benzofuran onto an arylamine main body, so that with cavity transmission ability is relatively strong, good thermal stability is good, good film-forming property is good and synthesis is simple and easy easy-to to-operate synthesis. The arylamine compound can be applied to the organic luminescent device as acovering layer of or a cavity transmission layer, so that the problem that carrier transmission in the organic luminescent device is unstable and light out-coupling efficiency is low in the organic luminescent device can be effectively solved; and the organic luminescent device has the advantages of being high in luminescent efficiency and long in service life.

The invention relates to a method for extracting residual abamectin from crystallization mother liquor, which comprises the steps of removing ester impurities and further separating each component by using a C18 column or a silica gel column. The separation and extraction process is simple; the selected and used solvent is cheap, safe and environment-friendly, and meets the industrialized requirement; and the effective ingredient B1 has high yield and reaches about 90 percent.

The invention relates to a ferroelectric-antiferroelectric phase transition leadless ferroelectric ceramic material, a ceramic element and a preparation method of the ferroelectric ceramic material. The chemical composition of the ferroelectric-antiferroelectric phase transition leadless ferroelectric ceramic material accords with the chemical general formula of (1-x)Bi0.5Na0.5TiO3-xBiAlO3, wherein 0.01<=x<=0.09. Through composition adjusting and technology improving, the obtained ceramic material has relatively large remanent polarization Pr, the ceramic has ferroelectric-antiferroelectric phase transition (FE-AFE) at a certain temperature, and has important value on practical application of the ceramic to instantaneous pulsed discharge or heat-electrical energy transition and other fields.

The invention discloses a preparation method of a streptococcus pneumoniae capsular polysaccharide protein conjugate vaccine, which comprises the following steps: degrading extracted streptococcus pneumoniae capsular polysaccharide; and conjugating the degraded streptococcus pneumoniae capsular polysaccharide with a carrier protein, and preparing the vaccine preparation.

The invention discloses a method for producing gamma-aminobutyric acid with a high yield, and belongs to the technical field of bioengineering. Glutamic acid decarboxylase derived from Bacillus megaterium is modified by protein engineering, and a modified glutamic acid decarboxylase gene is linked to a pET24a vector, and is epressed in E. coli BL21 (DE3). A recombinant strain is cultured in a fermenter for transforming glutamic acid to produce the gamma-aminobutyric acid, the wet cell addition amount is 7.0g/L, the transformation period is 8h, the yield can reach 425.0g/L, and the glutamic acid molar conversion rate is up to 99%, the space time yield of the gamma-aminobutyric acid is 53.1 g/L/h.

The invention provides a preparation method of a Salvia miltiorrhiza soft capsule, comprising the following steps of: completely mixing Salvia miltiorrhiza extract with glycerine and polyethylene glycol 400 so that liposoluble constituents such as tanshinone II A are dissolved in a liquid substrate so as to achieve certain solubilization and improve the biological availability of liposoluble constituents of Salvia miltiorrhiza. In the preparation process of the Salvia miltiorrhiza soft capsule, a method for preparing Salvia miltiorrhiza water-soluble component extract is provided, a macroporous resin separation technology is adopted, and ethanol solution is concentrated, atomized and dried after elution; in the obtained extract, the total salvianolic acid compounds account for more than 60% of total solid, wherein the content of salvianolic acid compound danshinolic acid B is between 45% and 60%, and the content of danshensu is controlled between 10% and 20%. The content of danshensu is controlled while the yield of salvianolic acids is improved so that the proportion of the main active ingredient danshinolic acid B is obviously improved. The preparation method is safe and efficient, low-toxic and environmentally-friendly, can satisfy the requirement of industrial production, and has wide and practical application value.

The invention discloses a method of enhanced multi-arc ion film plating through the Hall source driving magnetron sputtering, which is used for preparing the rigid film materials including TiN, TiC, (Ti, Si)N, (Ti, Si)C, (Ti, Si)CN, Ti(CN), (Ti, Al)N. The method comprises the following steps: treating the surface of the workpiece in the device, heating it to 300-350 Deg.c, charging the working gas Ar and N2 in the air pressure 1-2x10-1Pa, wherein the voltage is provided by the direct current power and intermediate-frequency alternating-current power of the device, and the high inonization reacting gas ion is provided by the Hall source of the device, then the hard electron and the molecular gas collide and generate the glow discharge, and form the ion with chemical activity which reacts with the free radical in the workpiece surface and deposit the film, the depositing speed is 2.0-4.0 per hour; charging the protective atmosphere to the furnace and cooling, then can get the film in the workpiece surface.

The invention relates to a prefabricated assembly type plant wall. The plant wall comprises a prefabricated assembly type concrete wall, and is characterized in that plant planting grooves are formedon the outer side of the prefabricated assembly type concrete wall; a drainage pipe is pre-buried at the bottom of each plant planting groove; after the pouring of the prefabricated assembly type concrete wall and the plant planting grooves is completed together, a waterproof coiled material is laid on the surface of the prefabricated assembly type concrete wall and the surfaces of the plant planting grooves. The prefabricated assembly type plant wall provided by the invention can meet industrial requirements of building industrialization, and realize factory prefabrication, batch production and on-site assembly. The prefabricated assembly type plant wall has the advantages that prefabrication can be carried out according to a design size, the production efficiency is high, energy is saved, the engineering quality is guaranteed, prefabricated structure components can be recycled, construction waste is less, and the like.

The invention belongs to the technical field of nano-material modified rubber and relates to a preparation method of a cyclopentadiene-modified carbon nanotube/rubber composite material. The preparation method utilizes cyclopentadiene to modify the surfaces of carbon nanotubes and comprises the following steps of adding cyclopentadiene or dicyclopentadiene and carbon nanotubes into a pressure-resistant reactor according to a weight ratio of (0.5-1): 1, carrying out heating to a temperature of 150-200 DEG C in an oil bath, wherein the pressure is naturally improved to 0.1-0.5MPa, carrying out a reaction process for 8-20h, cooling the reaction product to a room temperature, respectively washing the mixed reaction products by methylbenzene and methanol, carrying out filtration, carrying out vacuum drying on the filter cake at a temperature of 50-70 DEG C for 10-14h to obtain cyclopentadiene-modified carbon nanotubes of which the surfaces with vinyl functional groups, and mixing the cyclopentadiene-modified carbon nanotubes of which the surfaces with vinyl functional groups and rubber. The cyclopentadiene-modified carbon nanotube/rubber composite material has strong interaction of the composite material rubber and carbon nanotubes, has good workability (wherein rubber mixing time is shortened by 10-20%), has high dispersity, high thermal conductivity (improved by 20% or more) and excellent electrical conductivity (improved by 4-5 order of magnitude) and satisfies present industrialization requirements.

The invention relates to a method of breeding the rare hybrid orchid, which is characterized in: crossbreeding and fruit cultivating the gathered Cmbidium tracyanum L castle var huang su, C. mastersii Griff and C. iridioides in the resource garden, and the hybrid orchid is got by crossbreeding, the seed sterile germination, the explant treating, seed germination, young root emerging and switching culture, etc. The applying of Cmbidium tracyanum L castle var huang su, C. mastersii Griff and C. iridioides as parental generation for crossbreeding, which can break a series of technique bottleneck, has not been reported. The method cannot only breed new strain but also can precede rapid breeding, which can meet the industrialization demand.

The invention relates to a fast clamping positioner and belongs to the technical field of automobile mechanical machining and assembling. The fast clamping positioner comprises a machine frame and a workpiece fixing rack arranged on the machine frame. An upper sliding rack mechanism and a lower sliding rack mechanism perpendicular to the upper sliding rack mechanism are arranged on the machine frame. The upper sliding rack mechanism and the lower sliding rack mechanism are arranged in a spaced mode. Clamping rod mechanisms which are capable of getting close to or getting away from each other in the horizontal direction are fixed to the two ends of the lower sliding rack mechanism correspondingly. Lifter clamping mechanisms which are capable of getting close to or getting away from each other in the horizontal direction are fixed to the two ends of the upper sliding rack mechanism correspondingly. A sensing assembly is arranged on the upper sliding rack mechanism. According to the fast clamping positioner, the structure is reasonable, operation is convenient, precise positioning of workpieces can be achieved, the labor cost is reduced, the production efficiency of enterprises is improved, and automatic efficient operation is guaranteed.

The invention discloses a technology for producing phenylpyruvic acid by phenylalanine through enzymatic conversion and belongs to the technical field of biological engineering. According to the technology disclosed by the invention, a proteus mirabilis derived amino acid deaminase mutant is subjected to codon optimization and fermentation condition optimization and the enzyme activity of amino acid deaminase is remarkably improved. Furthermore, a conversion condition is optimized and the yield of the phenylpyruvic acid is remarkably improved; when the adding amount of wet strains is 25 to 30g/L, the yield of the phenylpyruvic acid can reach 81.1 to 83.0g/L and the mol conversion rate of the phenylpyruvic acid reaches 98.0 percent or mor.

The invention discloses a freshwater eukaryoticmicroalgae culture method. The method includes steps: (1), providing culture equipment used for culturing freshwater eukaryoticmicroalgae, wherein the culture equipment comprises a reaction container, a light emitting device, a nutrition distributing device and a gas supply device, the reaction container is used for containing a culture solution for microalgae growth, the light emitting device provides light needed for microalgae growth in the reaction container, the nutrition distributing device is used for providing nutrients needed for microalgae growth and reproduction and can provide manganese ions for the culture solution, and the gas supply device is used for providing gas needed for microalgae growth in the reaction container; (2), culturing the freshwater eukaryotic microalgae in the culture equipment. An infrared light source is adopted in the method, and a proper amount of manganese ions are provided into and a proper amount of carbon dioxide is fed into the culture solution, so that microalgae culture efficiency is improved greatly.