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139results about How to "Suitable for factory mass production" patented technology

Preparation method of hollow cobaltosic oxide microball materials and application for manufacturing electrodes

The invention relates to a preparation method of hollow cobaltosic oxide microball materials and application for manufacturing electrodes. The preparation method includes weighing cobalt salt and sodium salt respectively and dissolving them in deionized water to obtain cobalt salt solution and sodium salt solution; mixing the cobalt salt solution and the sodium salt solution in equal volume and stirring uniformly in thermostatic water bath to obtain mixed solution; adding ammonia water in the mixed solution to obtain cobalt ammonia complex solution containing the sodium salt; dripping hydrogen peroxide to obtain the mixed solution, subjecting the mixed solution to hydro-thermal treatment hermetically to obtain black precipitates; washing the black precipitates by deionized water and absolute ethyl alcohol sequentially to obtain hollow cobaltosic oxide microballs. The cobaltosic oxide microballs are mixed with conductive agent and adhesive and stirred to obtain sizing; the sizing is uniformly coated on foam nickel after pretreatment, dried and pressed to obtain electrodes. The required equipment for the preparation method is simple, and the preparation method is convenient to operate, low in preparation method and applicable to industrial massive production.
Owner:TIANJIN UNIV

Preparation method for graphene like cobaltosic oxide nano film material and application of electrode slice

The invention relates to a preparation method for a graphene like cobaltosic oxide nano film material and an application of an electrode slice. A cobalt salt and a sodium salt are respectively weighed and are dissolved in deionized water, and then a cobalt salt solution and a sodium salt solution are obtained; equal volume of the cobalt salt solution and the sodium salt solution are taken to be mixed, perform thermostatic water bath and be stirred uniformly, and then a mixed solution is obtained; ammonium water is added to the mixed solution, and then a cobalt ammonia coordination compound solution containing the sodium salt is obtained; hydrogen peroxide is dipped into the cobalt ammonia coordination compound solution then, hydro-thermal treatment is performed on the obtained mixed solution under sealing, and a black precipitate is obtained; and the black precipitate is washed successively via the deionized water and absolute ethyl alcohol and is dried under air atmosphere, and a graphene like cobaltosic oxide nano film is obtained. The graphene like cobaltosic oxide nano film is mixed with a conductive agent and a binder, and a slurry is obtained after stirring; and the slurry is uniformly coated on foam nickel after pretreatment in a scraping manner, and the electrode slice is obtained through drying and tablet compressing. An equipment condition needed by the preparation method is simpler, operation is convenient, preparation cost is low, and the preparation method is suitable for factory large-scale production.
Owner:TIANJIN UNIV

Sea-buckthorn fruit vinegar and preparation method thereof

InactiveCN104164352AMeeting the needs of special populationsFull expression of unique flavorMicroorganism based processesVinegar preparationAcetic acidSlurry
The invention discloses a method for preparing sea-buckthorn fruit vinegar. The method comprises the following steps: S1. selection, namely selecting sea buckthorn fruits and removing impurities from sea buckthorn fruits; S2. washing, namely washing the sea buckthorn fruits cleanly; S3. beating, namely beating the washed sea buckthorn fruits; S4. concentration, namely concentrating the sea buckthorn fruit slurry till the content of solids is 62-68 percent; S5. adjustment of sugar degree and pH value, namely adjusting the total sugar degree to 8-16 percent and the pH value to 3.5-4.5; S6. alcoholic fermentation, namely adding secondary spread yeast fermentation liquor to the sea buckthorn fruit slurry and carrying out alcoholic fermentation to obtain fermented mash; S7. acetic acid fermentation, namely adding brewing-mass to the fermented mass, inoculating secondary spread yeast fermenting liquor and then carrying out acetic acid solid-state fermentation; and S8. drenching of vinegar, namely leaching according to a three-circulation drenching method. The sea-buckthorn fruit vinegar disclosed by the invention has good nutrient contents, smooth and natural taste, bright color and stable quality; the method for preparing sea-buckthorn fruit vinegar has the advantages of short fermentation time, high vinegar yield and good flavor of fruit vinegar prepared according to the method, and is suitable for large-scale industrial production.
Owner:小金金山沙棘饮料食品厂 +1

Method for preparing high-purity ursolic acid and oleanolic acid from ligustrum lucidum ait

The invention discloses a method for preparing high-purity ursolic acid and oleanolic acid from ligustrum lucidum ait. The ligustrum lucidum ait is ligustrum lucidum ait leaf or ligustrum lucidum ait fruit. The ligustrum lucidum ait leaf or the ligustrum lucidum ait fruit is used as a raw material in the preparation method. The preparation method comprises the following steps of: removing impurities from the ligustrum lucidum ait leaf or the ligustrum lucidum ait fruit by using alkali water, boiling, extracting with ethanol, decolorizing with active carbon, regulating alkali, removing impurities, performing reduced pressure concentration to separate out a crude oleanolic acid product, regulating acid to separate out a crude ursolic acid product, and purifying the oleanolic acid and the ursolic acid by washing, re-crystallization and the like. The cheap and easily obtained ligustrum lucidum ait leaf or ligustrum lucidum ait fruit is used as a raw material, and the ethanol is used for reflux and extraction. The treatment amount of 'three wastes' is low, the 'three wastes' are easily treated, the ethanol can be recycled, and the waste residue left after extraction can be used as a fertilizer. Therefore, the method basically does not produce environmental pollution, the yield is high, and the products are pure. In addition, the method is simple, convenient, fast and suitable for factory large-scale production.
Owner:曾超

Silk fibroin/manganese dioxide composite micro-sphere drug carrier with core-shell structure and preparation method

The invention discloses a preparation method of a silk fibroin/manganese dioxide composite micro-sphere drug carrier with a core-shell structure. The preparation method includes the steps: (1) adding aqueous-organic solvents into silk fibroin water solution, removing the solvents after freezing-natural thawing to obtain a silk fibroin nanosphere; (2) uniformly mixing the obtained silk fibroin nanosphere, potassium permanganate and polyallylamine hydrochloride, finishing incubation and removing the solvents to obtain the silk fibroin/manganese dioxide composite micro-sphere drug carrier with the core-shell structure taking silk fibroin as an inner layer and manganese dioxide as an outer layer. The preparation method is simple in process and simple and convenient in operation, the surface of a prepared silk fibroin/manganese dioxide composite micro-sphere is rough, excellent performances of the silk fibroin and the manganese dioxide are combined, drug loading rate is high, the preparation method can respond to controllable release of tumor microenvironments, hydrogen peroxide in a tumor environment is degraded to generate oxygen, chemical and photodynamic therapy efficiency of tumors is improved, and the preparation method has a wide application prospect in the field of tumor therapy and drugs.
Owner:ZHEJIANG UNIV

High fidelity transistor audio power amplifying device

The invention discloses a high fidelity transistor audio power amplifying device comprising an input amplifying module, a difference module signal converting module, a voltage amplifying module, a main voltage negative feedback module, an auxiliary feedback module and a difference module signal offsetting module, wherein the input amplifying module is used for increasing the input resistance, amplifying an input audio signal and generating an audio difference module signal; the difference module signal converting module is used for converting, amplifying and outputting the audio difference module signal; the voltage amplifying module is used for performing voltage amplification on the audio signal amplified by the input amplifying module and the difference module signal converting module; the main voltage negative feedback module is used for feeding back the audio signal to the input amplifying module; the auxiliary feedback module is used for feeding back the audio signal to the difference module signal converting module; and the difference module signal offsetting module is used for providing static offset current for the difference module signal converting module. The device has the advantages of simple structure, low cost, easiness in manufacture, non-debugging operation, good safety and efficiency, and beautiful tone quality, etc.
Owner:侯德亮 +1

Electrodeposition method for preparing nickel oxide nanosheet supported nickel-molybdenum oxide quantum dots

ActiveCN111118539AImprove the dual-function performance of hydrogen evolution and oxygen evolutionGood performanceMetal/metal-oxides/metal-hydroxide catalystsElectrodesGalvanic depositionActivated carbon
The invention discloses an electrodeposition method for preparing nickel oxide nanosheet supported nickel-molybdenum oxide quantum dots. The method comprises the following steps: activating the surface of carbon cloth to obtain pretreated carbon cloth; putting the surface-activated carbon cloth serving as a working electrode and a carbon rod serving as a counter electrode into the prepared nickelsalt electrolyte solution, and performing constant-pressure deposition by using a workstation to obtain a precursor material; putting the deposited precursor material into the prepared molybdenum saltelectrolyte solution, and carrying out constant-pressure deposition by using a workstation; carrying out washing with absolute ethyl alcohol after deposition, and performing drying in a drying oven to obtain the nickel oxide nanosheet supported nickel-molybdenum oxide quantum dots. The nickel oxide nanosheet supported nickel-molybdenum oxide quantum dot material is composed of three phases including nickel oxide, elemental nickel and molybdenum oxide, quantum dots are 2-20 nm in size and are uniformly distributed on nickel oxide nanosheets, and the nickel oxide nanosheets are uniformly distributed on the carbon cloth. According to a technical scheme in the invention, required equipment is simple, operation is convenient, conditions are controllable, repeatability is high, preparation costis low, and the method is suitable for industrial large-scale production.
Owner:TIANJIN UNIV

A kind of self-foaming foam drainage agent and preparation method thereof

ActiveCN104498013BStrong foamingHigh liquid carrying rateDrilling compositionSodium bicarbonateWater block
The invention discloses a self-foaming-type foaming drainage agent. The self-foaming-type foaming drainage agent comprises, by weight, 20-40 parts of soapberry fruit saponin, 8-25 parts of sodium fatty acid methyl ester sulfonate, 8-25 parts of 1-hydroxyethylidene-1,1-diphosphonicacid, 10-30 parts of sodium bicarbonate and 10-30 parts of tartrate. The preparation method comprises the following steps of S1, weighing: weighing the raw materials according to the above ratio for next use, S2, drying: drying the weighed raw materials so that water content is less than 3%, and S3, pressing: adding all the dried raw materials into a mixer, carrying out stirring for 4-8min, transferring the mixture into a hydraulic press and carrying out processing to obtain round rod-shaped solids which are the self-foaming-type foaming drainage agents. The self-foaming-type foaming drainage agent realizes natural gas well foaming drainage of a water-blocked gas well or a natural gas well with a weak stratum capability, has dual effects of gaslifting and a foaming drainage agent, has a strong self-foaming capacity and a high liquid carrying rate and can produce effects fast. The preparation method has simple and convenient processes, has a low production cost, is environmentally friendly and is suitable for industrial large-scale production.
Owner:成都孚吉科技有限责任公司

Tungsten-doped nickel selenide sulfide film-coated nickel selenide sulfide nanorod growing on surface of foamed nickel and preparation method and application of nickel selenide sulfide nanorod

The invention provides a tungsten-doped nickel selenide sulfide film coated nickel selenide sulfide nanorod growing on the surface of foamed nickel and a preparation method and application of the nickel selenide sulfide nanorod. The preparation method comprises the following steps: putting a selenium source into hydrazine hydrate, carrying out mechanical stirring and dissolving to obtain a selenium source mixed solution, adding thiourea, ammonium fluoride and a tungsten source into the selenium source mixed solution, and then adding absolute ethyl alcohol and deionized water to finally obtaina mixed solution; and pouring the mixed solution into a reaction kettle with a polytetrafluoroethylene lining, putting pretreated foamed nickel into the reaction kettle, carrying out hydrothermal treatment, carrying out cooling to room temperature of 20-25 DEG C, performing cleaning and drying, and carrying out annealing in a protective atmosphere. The preparation method is simple in preparation process, convenient to operate and high in repeatability; and the nickel selenide sulfide nanorod wrapped by a monatomic tungsten doped nickel selenide sulfide thin film growing on the foamed nickel insitu is uniform in distribution and large in length-diameter ratio, can be directly used as an electrode, does not need additional addition of a binder and a conductive agent, and has excellent energy catalytic application prospects.
Owner:TIANJIN UNIV

Garden plant waste composting method with high fertilizer quality

The invention relates to the technical field of composting, discloses a garden plant waste composting method with high fertilizer quality. The method comprises the following steps: firstly collectinggarden plant waste as follows: 100 to 200 kg of dry branches and fallen leaves, 150 to 180 kg of lawn trimmed residues, 200 to 300 kg of pedestrian tree trimmed residues, 50 to 100 kg of weed seeds and 10 to 20 kg of plant fallen flowers, sorting 100 to 200 kg of dry branches and fallen leaves and 200 to 300 kg of pedestrian tree trimmed residues, and cutting the branches. According to the gardenplant waste composting method with high fertilizer quality, by collecting the garden plant waste, a twice crushing and twice compositing fermenting process is adopted, and the technological parametersare strictly controlled, so that organic matters in the garden waste can be rapidly and stably degraded under the effect of microorganisms; and therefore, the degradation rate and the quality of thefinal compost product can be improved. The method is simple in operation, rapid in fermentation and low in production cost, high in quality of compost product produced by adopting the method of the invention, and suitable for the industrial large-scale productionfactorized mass production.
Owner:WUHAN CHINESESKY LANDSCAPE ART CO LTD

Cultural method of iron sheet dendrobe protocorm rich in selenium and chromium

The invention discloses a cultural method of iron sheet dendrobe protocorm rich in selenium and chromium. The method comprises the steps of: carrying out induction of the protocorm and enrichment culture of the protocorm by using iron sheet dendrobe seed, stem tip or root tip as explant, wherein the enrichment culture medium components are as follows: every 1L of 1/2MS culture medium contains 100 mL of coconut milk, 0.2 mg of NAA, 1.0 mg of KT, 30 g of cane sugar, 0.3 mg of sodium selenite, 0.35 mg of chromium trichloride and 8 g of agar; pH is 5.6-5.8. The embryo-germinated protocorm, which is subjected to induction culture for 30-40 days and is as large as a sesame grain, is transferred to the enrichment culture medium, each bottle contains about ten grains of protocorm; and the protocorm is cultured under conditions that the temperature is 25 DEG C, the illumination intensity is 1500-2000 lux and the illumination time is 1-16 h/d. The culture method disclosed by the invention has the beneficial effects that 1, the whole process is performed at room temperature without being limited by region, season and weather, and is free of pollution; 2, the culture process is simple, easy to operate, short in period and low in subsequent investment; and 3, the iron sheet dendrobe protocorm has high multiplication capacity, high yield and high microelement enrichment ratio.
Owner:浙江亚林生物科技股份有限公司

Production process for Jianchang dried duck meat

The invention discloses a production process for Jianchang dried duck meat. The production process comprises the following steps: S1, selecting duck meat, namely selecting lean meat of Jianchang duck chest and legs and cutting into blocks; S2, pickling, namely adding spices and pickling; S3, freezing, namely freezing the pickled duck meat blocks into a freezer; S4, drying in air, namely drying the frozen duck meat blocks in the air; S5, boiling, namely immersing and boiling for 50-70min; S6, molding, namely cutting the boiled and cooled duck meat blocks into small strips by a cutter; S7, desalting, namely immersing by using water to remove surplus salt; S8: treating by oil, namely treating the desalted duck meat strips into plant oil; S9, seasoning, namely adding condiments with different tastes; and S10, sterilizing, namely sterilizing by using high-temperature steam. The Jianchang dried duck meat prepared by the production process not only has good meat quality, is tough and chewable, and has rich flavor, no greasy feeling and excellent mouth feel; the Jianchang dried duck meat has high nutritional ingredients and a long guarantee period, is convenient to carry and eat and has diversified tastes; the process is simple to operate, convenient to produce and suitable for industrial large-scale production.
Owner:DECHANG MAOYUANCHANG TONGERDUO FOOD CO LTD

Trichogramma breeding device

The invention relates to a device for breeding trichogramma on a large scale in a factory-like manner, in particular to a trichogramma breeding device, which comprises a box body, wherein the box body consists of a box body I and a box body II; the box body I and the box body II are eudipleural; the end parts of the box body I and the box body II are connected with each other in a communicated manner through a connecting piece; an open door I and the box body I are made from transparent materials; the open door I is connected with the box body I; an open door II and the box body II are made from non-transparent materials; the open door II is connected with the box body II; the non-connected end of the box body I is provided with a light source; the light source is connected with a switch; the switch is placed at the exterior of a side surface; the inner side wall of the box body I is provided with multiple groups of parallel and symmetrical clamping pieces from top to bottom; all groups of the clamping pieces of the box body I and the box body II are all movably connected with insertion plates. The invention provides the trichogramma breeding device, by designing two areas of a breeding area and a trichogramma area, the two areas are connected with each other in the communicated manner; a parasitic breeding function and a trichogramma alternation function are completed respectively; the large-scale continuous production can be realized; the operation is simple; the production efficiency is high.
Owner:INST OF PLANT PROTECTION SHANDONG ACAD OF AGRI SCI
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