57results about How to "Abundant sources of raw materials" patented technology

The invention discloses a method for preparing asphalt-base carbon fiber by taking coal directly liquefied residues as a raw material. The method comprises the following steps that: mixed solution of coal directly liquefied residue powder and tetrahydroquinoline solvent is filled into a high pressure autoclave, and is heated to a temperature of between 150 and 400 DEG C after air in the autoclave is replaced by nitrogen; hydrogen is introduced into the autoclave while pressure is increased to 2 to 50MPa; most elements, such as sulfur, oxygen, nitrogen and the like, contained in original residues are removed through distilling under reduced pressure; removing tetrahydroquinoline insoluble substance through filtering under reduced pressure, reclaiming the tetrahydroquinoline solvent through distilling under reduced pressure, and recycling the tetrahydroquinoline solvent; and the obtained tetrahydroquinoline soluble substance can be produced into the asphalt-base carbon fiber through melt spinning, pre-oxidation, low temperature carbonization, high temperature carbonization, superficial treatment, post treatment and other processes.

This invention relates to a method for preparing cellulose ester acetate from plant cellulose in ionic liquid. The method comprises: (1) utilizing plant cellulose as the raw material; (2) dissolving plant cellulose in ionic liquid; (3) adding acylation agent into the ionic liquid, performing homogeneous acetylation on plant cellulose, washing the intermediate with water and drying; (4) separating and purifying dried intermediate to obtain cellulose ester acetate. This invention provides a method for homogeneously preparing cellulose ester acetate in clean solvent (ionic liquid) by using low quality plant cellulose as the raw material. The method solves the problem of high cost faced by the present methods.

The invention relates to a preparation technology of soybean lecithin for injection. Soybean lecithin is taken as a raw material, crude lecithin is firstly obtained after the treatment of acetone deoiling, membrane separation, adsorption decolorization and the like, then the crude lecithin is undergone column chromatographic fractionation, filtration sterilization, decompression concentration and vacuum drying, and finally the soybean lecithin for injection is obtained. The invention adopts membrane separation to replace the traditional solvent extraction, so the operation is easy. A polar compound with surface hydroxyl groups is taken as a stationary phase, mixed solvent composed of weak polar solvent and strong polar solvent is firstly used as eluent to carry out gradient elution, after all the cephalin flows out, the strong polar solvent is taken as the eluent, thereby not only the separation selectivity is high, but also the usage of the eluent is greatly reduced, and meanwhile, the extraction efficiency of lecithin is high, the product quality is stable, and the industrial mass production is benefited.

The invention relates to a polyurethane foam plastic prepared by little tung oil. The biologic group polylol is prepared by epoxidation, ring cleavage, alcoholysis and addition of the tung oil, then the biologic group polylol and polyether glycol are used as basic raw materials to prepare compound materials with assistant agent; finally the compound materials are mixed evenly with blowing catalyst, then react with polyisocyanate with the yield of effervescence, thus obtaining the polyurethane foam plastic. The invention has the advantages that: 1. the little tung oil of the raw material of the biologic group polylol is renewable resource and the little tung is abundant with low cost and is unnecessary to get resources from people; 2. the preparation technique of the biologic group polylol has simple operation, good adjustability of product functionality, comparatively good property and high rate of petrified polyether glycol substation reducing dependence to petrified products; 3. the biologic degradability of polyurethane foam plastic prepared by the little tung oil and biologic group polylol is comparatively good and friendly to environment.

The invention discloses a method for preparing multilayer graphene. The method is characterized in that: a compound of a vinyl polymer is prepared through carrying out bulk polymerization or in situ polymerization on raw materials consisting of 85-98.5 wt% of a vinyl monomer, 1-10 wt% of a layered compound and 0.5-5 wt% of an aromatization catalyst, a mixture containing the multilayer graphene isprepared through heating the compound of the vinyl polymer for 1min-10h at 700-1500DEG C in an inert atmosphere, and the purified multilayer graphene with the thickness of 0.35-15nm is prepared through immersing the mixture containing the multilayer graphene in a solution containing 10-30% by mass of hydrofluoric acid for 1-48h, separating to obtain a solid, and immersing the separated solid in amixed solution which comprises concentrated sulfuric acid and concentrated nitric acid according to a volume ratio of 1:1 for 1-48h, and separating. The method of the invention has the following advantages: the vinyl polymer is used as a carbon source, so the raw material source is abundant; the aromatization catalyst used in the invention can be directly obtained from the market; reaction processes are mild and controllable, and operations are convenient; and the low cost and large scale preparation of graphene can be realized.

The invention discloses a method for preparing basic magnesium carbonate and coproducing hydrochloric acid by mineralizing CO2 (carbon dioxide) via magnesium chloride. The method comprises the following steps: standing an anion-exchange membrane in an electrolytic bath and dividing into a positive electrode area and a negative electrode area; adding a conducting solution serving as a positive electrode electrolyte into the positive electrode area; adding a magnesium chloride solution serving as a negative electrode electrolyte into the negative electrode area; filling carbon dioxide gas; applying a direct current power supply between the positive electrode and the positive electrode; reducing a hydrogen ion in the negative electrode electrolyte to form hydrogen on the negative electrode; converting carbon dioxide in the negative electrode electrolyte to form a bicarbonate radical; enabling the chloride ion replaced when bicarbonate radical and magnesium chloride generate magnesium bicarbonate to reach the positive electrode area through the anion-exchange membrane under the action of current, and oxidizing the chloride ion to form chlorine on the positive electrode; carrying out a reaction on chlorine and hydrogen which are generated by the electrolysis to generate hydrochloric acid; moving out the magnesium bicarbonate generated by the electrolytic reaction in the negative electrode area; and heating, filtering and drying the magnesium bicarbonate, thereby obtaining the basic magnesium carbonate. According to the method, when the carbon dioxide is mineralized, the basic magnesium carbonate and hydrochloric acid which have high added values are generated at the same time.

The invention belongs to the field of cellulose modification and utilization and in particular relates to a preparation method of a surface-grafted modified nanocellulose crystal. The preparation method of the surface-grafted modified nanocellulose crystal comprises the following steps of: dispersing nanocellulose crystal in an organic solvent; introducing an unsaturated double bond onto the surface of the nanocellulose crystal through a reaction of maleic anhydride and hydroxyl groups on the surface of the nanocellulose crystal; and introducing an initiator and an unsaturated monomer to prepare the surface-grafted modified nanocellulose crystal through a radical polymerization reaction. The surface-grafted modified nanocellulose crystal is uniformly dispersed in a polymer matrix and good in compatibility with the interface of the polymer matrix, and therefore, the prepared polymer nanometer composite material has higher tensile strength and elongation at break. The preparation method of the surface-grafted modified nanocellulose crystal has the advantages of rich raw material resource, simple process, completely biodegradable product, high mechanical performance and the like, and can be used for a plurality of fields including the packaging field, the biological field, the medical field, the engineering plastic field and the like.

The invention provides a high-fiber instant asparagus ultramicro-powder beverage and a preparation method thereof. The asparagus ultramicro-powder beverage contains 60% to 75% of asparagus ultramicro-powders, 15% to 20% of stabilizers and 5% to 25% of flavorings. The product is prepared by the following steps: subjecting asparagus processing leftovers to vacuum freeze-drying treatment and micronization, adding stabilizers and flavorings, and mixing thoroughly; and the product is soluble in both cold and hot water. The high-fiber instant asparagus ultramicro-powder beverage is rich in dietary fiber, saponins and flavonoids and has hypolipidemic and anti-tumor functions. The method adopts the vacuum freeze-drying treatment and micronization techniques to retain the effective components of asparagus to the greatest extent and improves dissolution and digestion/absorption of nutrients of the product. The beverage and the preparation method have reasonable designs and abundant raw materials, are favorable to asparagus waste utilization, and increase the economic benefits of asparagus industry.

The invention discloses a culture medium formula for brown hypsizigus marmoreus. The culture medium formula comprises the following raw materials in percentage by weight: 30 to 40 percent of sawdust, 15 to 25 percent of corncob, 15 to 25 percent of soybean hulls, 5 to 10 percent of rice bran, 5 to 10 percent of wheat bran and 5 to 15 percent of cotton seed hulls. The invention also discloses a method for cultivating the hypsizigus marmoreus by using the culture medium formula.

The invention discloses a preparation method of a spherical nickel-lithium manganate anode material. The preparation method is characterized by comprising the following steps: weighing a lithium source compound, a nickel source compound and spherical manganous-manganic oxide by a mol ratio of 2:1:1; dissolving the lithium source compound and the nickel source compound in ethanol to prepare a solution of which the total concentration of metal cation is 0.1-0.3 mol/L; adding the spherical manganous-manganic oxide into the solution; heating the solution in a water bath with stirring until a paste-like mixture is formed; drying the paste-like mixture at 90-110 DEG C to obtain gray black powder; roasting the obtained powder at 750-950 DEG C for 6-36 hours; annealing at 615-675 DEG C for 2-6 hours; cooling, directly sieving, and then obtaining the nickel-lithium manganate anode material. The lithium source compound is lithium acetate or lithium nitrate, and the nickel source compound is nickel acetate or nickel nitrate. The water-bath heating temperature is 50-70 DEG C.

The invention discloses a biosorbent removing lead ions in wastewater and preparation, application and regeneration methods thereof, the biosorbent is granular and uses calcium alginate and gelatin as carriers in which grapefruit peel powder is embedded, mass ratio of the calcium alginate, the gelatin to the grapefruit peel powder is (8-10):(4-5):1, the biosorbent is prepared by using mixed glue of the calcium alginate and the gelatin to cover the grapefruit peel powder to result in a sorbent embedding body, instilling the sorbent embedding body into CaCl2 solution for curing and washing the body with de-ionized water, and implementing freeze drying. The biosorbent of the invention is added into wastewater for proceeding adsorption treatment for at least 30 minutes at normal temperature in which pH value is 3.5-7.0, which can basically remove lead ions in the wastewater. The biosorbent of the invention has the advantages of abundant sources of raw materials, low cost, high mechanical strength and excellent adsorption effect on the lead ions in the wastewater.

The invention discloses a method for preparing stone coal based mesoporous activated carbon with a high specific surface area, belonging to the field of activated carbon preparation. The method comprises the following steps: by taking stone coal as a raw material and mixed acid of hydrofluoric acid-concentrated sulfuric acid as pickle liquor, performing deliming pretreatment on the raw material, activating by using potassium hydroxide, pickling by using diluted hydrochloric acid under the assistance of ultrasonic waves, boiling with hot water, and finally drying, thereby obtaining a product. The raw material used in the method is rich in source, the preparation process is simple, the time consumption is less, a small amount of equipment is needed, the production cost is low, and the environment is protected. The specific surface area of the activated carbon prepared by using the method disclosed by the invention is up to 1524.82m<2>.g<-1>, the mesoporosity is 98.3%, the total pore volume is 0.74cm<3>.g<-1>, the average aperture is 2.4nm, the methylene blue adsorption value is 792.93mg.g<-1>, and the activated carbon is stone coal based mesoporous activated carbon with the high specific surface area.

An automotive brake block with ionic type rare-earth residues as filling materials is characterized by comprising by weight, 10 to 15% of the ionic type rare-earth residues, 20 to 30% of mineral fibers, 10 to 15% of binding agents, 15 to 25% of graphite, 2 to 5% of high temperature binding agents, 1 to 3% of aramid reinforced fibers and 5 to 10% of friction increasing materials. Ultrasonic processing and mechanical activation are performed on particle surfaces after the ionic type rare-earth residues, the mineral fibers and graphite raw materials are uniformly mixed to enhance contact force between particles and then material mixing with the rest of the raw materials is performed to be solidified into the automotive brake block through compression forming and heat treatment. According to the automotive brake block with the ionic type rare-earth residues as the filling materials, the ionic type rare-earth residues are utilized to replace the traditional mineral filling materials, so that the produced brake block is stable in friction coefficient and good in high temperature performance, the abrasion rate is not affected but lower instead, the materials can be recycled, the recycling and utilization rate is high, the raw material sources are rich, and the costs are low.

The invention provides a weather-resistant paint for outdoor tent support bars, which is prepared from the following components in parts by weight: 40-60 parts of epoxy resin, 5-15 parts of pigment, 5-10 parts of filler, 1-2 parts of dispersing agent, 1-2 parts of leveling agent, 1-2 parts of rust inhibitor, 1-2 parts of defoaming agent, 1-2 parts of drying agent, 1-2 parts of plasticizer, 1-2 parts of film formation assistant, 30 parts of acetone and 70 parts of water. The paint has the advantages of abundant raw material sources and low cost; and by matching various auxiliary materials with the main materials, all the components interact and are coordinated, so that the thermal-insulation paint has the characteristics of highlight irradiation resistance, aging resistance, rain water corrosion resistance, skid prevention and the like, and especially has excellent ultraviolet resistance and thermal-insulation property.

The invention provides an organic dye whose structure is as shown in formula (1). The invention is centered on phenanthrene and carbazole, and replaced triphenylamine donors and cyano acrylic acid receptors are used to regulate the energy level structure of dye molecules, so that various effective donor receptor organic dyes are designed and formed. An organic dye sensitized solar cell prepared from the dye molecules has a power conversion efficiency of over 10 percent which is far higher than other organic dye sensitized solar cells centered on phenanthrene and carbazole. The organic dye provided by the invention is prepared without the use of heavy metals, and has the advantages of abundant source of raw materials, lower cost and environmentally friendly industrial production.

The invention discloses a mixed particle deodorant taking natural attapulgite clay as a main body. The mixed particle deodorant consists of the following raw materials in parts by weight: 50-60 parts of attapulgite clay, 2-3 parts of sophorolipid, 10-15 parts of bentonite, 6-10 parts of active carbon powder, 6-10 parts of calcium chloride, 2-4 parts of rice hull, 2-3 parts of coconut fiber, 1-2 parts of sodium citrate, 2-3 parts of alumen, 0.05-0.1 part of thymol, 1-2 parts of potassium sorbate, 2-3 parts of calcium propionate, 3-6 parts of scolecite, 0.2-0.5 part of peppermint oil, 0.5-1 part of zinc pyrithione, 3-5 parts of aluminum phosphate, 1-2 parts of coco fatty acid diethanol amide, 0.6-1 part of alpha-terpilenol, 0.6-1 part of metaboric acid and 0.1-0.4 part of a silane coupling agent KH560. The mixed particle deodorant is free of any chemical synthetics, and thus the mixed particle deodorant does not threat and damage the health of a user. The mixed particle deodorant has the advantages of abundant sources of raw materials, low cost, simple preparation technology, good environmental protection performance and the like. The mixed particle deodorant is large in adsorbing capacity and long in service life, the effect of removing air odor is obvious, and the mixed particle deodorant can be repeatedly used after airing. The product can be widely applied to removing order and purifying air in houses (refrigerators and freezers), toilets in offices and meeting rooms, living rooms of pets and animal cultivation rooms.

The invention relates to a method for preparing lithium tetrafluoroborate. The method comprises the following steps of dissolving solid lithium carbonate with the purity higher or equal to 99.9% into pure water so as to prepare a suspension, heating the suspension, adding a fluoroborate aqueous solution to the heated suspension so as to react, carrying out filtering, evaporative concentration, cooling crystallization, separation and drying on a material after the reaction is completed, dissolving the dried material in a protection cabinet with nitrogen gas by adding anhydrous ethanol, crystallizing, and drying, thereby obtaining white powdery lithium tetrafluoroborate. The method disclosed by the invention has the advantages that the used raw materials are rich and are easy to obtain, the production cost is low, the process is simple, the operation and control are simple and convenient, the reaction rate is high, and the obtained lithium tetrafluoroborate product has the purity over 99% and the moisture lower than 200 ppm and meets the production needs of lithium-ion electrolysis tanks.

A natural bactericide for controlling strawberry leaf spot is prepared from the following compositions: artemisia argyi, stemona sessilifolia, rhubarb, cortex phellodendri, gleditsia sinensis, dandelion, asarum herb, ginkgo biloba, croton seed and rhizoma cyrtomii fortunei. The natural bactericide for controlling strawberry leaf spot is abundant in raw-material source and low is cost, is prepared by employing pure natural compositions, is non-toxic and free of public hazard, and also is capable of effectively controlling strawberry leaf spot.

The present invention relates to a health beverage, specifically to a ginkgo leaf and honeysuckle health beverage, and belongs to the technical field of food and beverage processing. According to the beverage, ginkgo leaves with a medicine food homology characteristic and a honeysuckle extracting solution are adopted; the source of the raw materials is rich; sugar, honey, citric acid, and malic acid are added to adjust the taste; treatments of crushing, extracting, and sterilizing are performed to obtain the beverage, wherein the processing technology is simple and easy to perform. According to the present invention, the beverage has characteristics of pure taste, sweet and delicious taste, has effects of blood cooling, exogenous pathogen relieving, heat clearing and detoxifying, and is especially suitable for drinking by field work people, travel people and other people.

The present invention relates to disposable multiple lattice dining plate made of composite degradable PNP manioc material. It has downwards expanding periphery, at least six notches in different sizes and shapes, of 1-5 cm depth and with round edges. It has simple structure, easy making process and relatively high strength, and is low in cost, leakproof and degradable without environmental pollution.

The invention discloses a method for valuing a C reactive protein multi-system based on value traceablility. The method comprises the following steps: employing a C reactive protein international standard substance for valuing a candidate C reactive protein standard substance through a value transmission mode, employing human CRP low-value serum mixed liquor for diluting an international certifiedreference material ERM-DA474/IFCC to make a calibration curve, and employing 10 detection systems for valuing the candidate reference substance. The experiment proves that the fixed value result is accurate and consistent, and the method provides novel thinking for standardization and unification of CRP.

The invention discloses denitrification filler and a method for deep denitrification of municipal sewage. The denitrification filler is prepared from the following raw materials by weight percent: 0.5-1.5% of aluminum powder, 8-12% of aluminum hydroxide, 3-8% of sulfur powder, 15-25% of sodium thiosulfate, 1.5-3% of sodium silicate, 40-55% of calcium hydroxide, 1.5-3% of fine sawdust and the balance of water. The denitrification filler is insoluble in the water, can react for a long time, is not powdered or argillation, and is low in cost, rich in source of raw materials and simple in preparation method; the method for the deep denitrification of the municipal sewage combines a chemical method and a biological method, thus having the advantages of being rapid and thorough of the chemical reaction as well as the advantages of being low in cost and having environmental adaptability of the biological method; therefore, the method provided by the invention is an efficient deep denitrification method.

The invention relates to the field of a lithium ion battery and specifically to a preparation method for an amorphous state sulfide solid electrolyte. The preparation method for the amorphous state sulfide solid electrolyte is characterized by comprising the following steps of (1) putting metal lithium, elemental sulfur and phosphorus pentasulfide into an anhydrous and oxygen-free sealed container for mixing; and (2) performing mechanical grinding on the mixed raw materials obtained in the step (1) to obtain the amorphous state sulfide solid electrolyte. According to the preparation method, the proportion of lithium to sulfur to phosphorus can be accurately controlled; the problem of a relatively low purity of the product caused by raw material volatilization existing in a high-temperature solid state method is solved; and meanwhile, the preparation method is rich in raw material sources and simple in process; and the high-purity amorphous state sulfide solid electrolyte can be obtained in one step by a ball milling method.

The invention discloses a method for combined production of 1,1,2-trifluorotrichloroethane and 1,1,1-trifluorodichloroethane. The method comprises the following steps: adding reaction raw materials comprising hydrofluoric acid, hexachloroethane and tetrachloroethylene into a reaction autoclave according to a molar ratio of (10-40):(0.8-2.5):(1.2-3.6), reacting, adding a catalyst for catalysis, reacting at 30-250DEG C under 0.3-3.0Mpa for 2-12h, washing with water, washing with an alkali, and carrying out rectifying purification to obtain the products 1,1,2-trifluorotrichloroethane and 1,1,1-trifluorodichloroethane, wherein the catalyst can be metal fluoride or metal chloride, the metal fluoride comprises AlF3, SbF3, SbF5 and ZnF2, and the metal chloride comprises SbCl5. The synthetic method has the advantages of abundant sources and low price of the raw materials, high reaction yield, easy reaction feeding, easy separation and extraction of the generated products, and realization of industrial continuous production.

The invention provides a preparation method of a traditional Chinese medicine air freshener. The method comprises the following steps: weighing fresh folium artemisiae argyi; drying, crushing, adding water, and carrying out distillation and extraction, so as to obtain essential oil; weighing an artemisia stelleriana plant, and cutting into small segments; adding water, stewing, filtering an extract liquid, and drying into paste, so as to obtain artemisia stelleriana paste; and mixing folium artemisiae argyi essential oil with the artemisia stelleriana paste, stirring, mixing, dropwise adding a propellant, and solidifying. According to the technical scheme of the invention, through improvement of an air freshener preparation process, the problem how to develop a natural nontoxic and environment-friendly air freshener is solved.

The invention relates to composite yarn and a preparation method thereof. The composite yarn is formed by stranding blended yarn and silk-like composite polyester yarn, the blended yarn and the silk-like composite polyester yarn are wound on a yarn core in a reverse twisting mode, the blended yarn is formed by blending silver-plated fibers, spun fibers and bamboo charcoal fibers, and the silk-likecomposite polyester yarn is composed of pre-oriented yarn POY and fully drawn yarn FDY. According to the preparation method of the composite yarn, the blended yarn formed by blending the silver-plated fibers, spun fibers and bamboo charcoal fibers and the silk-like composite polyester yarn formed by carrying out twisting and thermal shrinkage shaping on interlaced yarn generated by the pre-oriented yarn POY and the fully drawn yarn FDY are wound on the yarn core in the reverse twisting mode; the composite yarn formed by compounding and twisting multiple kinds of yarn has better elasticity, air permeability, antibacterial ability, deodorization ability and better gloss, and meets higher requirements of people on textile products.

The invention provides a silicon-containing nutrient slow-release fertilizer which is prepared from the following raw materials in parts by weight: 9-15 parts of fly ash, 15-25 parts of straws, 6-10 parts of potassium nitrate, 10-20 parts of calcium magnesium phosphate fertilizer, 8-10 parts of diatomite, 20-30 parts of a compound microorganism bacterium agent, 6-8 parts of attapulgite and 3-5 parts of sodium alga acid. The silicon-containing nutrient slow-release fertilizer provided by the invention can achieve effects of effectively reducing the content of Cd in soil, reducing absorption ofcrops on the Cd, improving the survival rate and yield of the crops, reducing the content of other toxic heavy metals in the soil and effectively improving hardening of the soil and has a lasting fertilizer effect.

The invention discloses a technology for modifying and preparing an adsorbent by the aid of banyan leaves. The technology includes soaking a certain quantity of fresh banyan leaves in clear water, washing the fresh banyan leaves and removing dust from the fresh banyan leaves; drying the banyan leaves until the weight of the banyan leaves is constant; smashing the banyan leaves to obtain powder and sieving the powder; collecting the powder; mixing the powder and isopropyl alcohol with each other to obtain mixtures and carrying out sufficient reaction on the mixtures; filtering, washing and drying the reacted mixtures; alkalifying the mixtures by the aid of NaOH solution; filtering, cleaning and drying the mixtures to obtain dried products; carrying out sufficient reaction on the dried products and citric acid solution to obtain reaction products; cleaning the reaction products by the aid of distilled water after the sufficient reaction is carried out and cleaning the reaction products until obtained solution is neutral; filtering and drying the solution to obtain the modified adsorbent.

The invention relates to a rice husk energy-saving composite board and a preparation method thereof. 4 parts of adhesive, 3 parts of flame retardant, 1 part of lubricant, 2 parts of plasticizer, and 1 part of antioxidant; the present invention has rich sources of raw materials, and the whole production process is highly operable. The added rice husk powder, purple bamboo The powder, the filling material and the waterproof adhesive make the manufactured composite board superior in performance, presenting characteristics such as compact structure and good compactness; the invention also improves the utilization value and utilization rate of the rice husk.

The invention relates to the fields of microorganism and water processing, and discloses a usage of a distiller's yeast in degrading tetrodotoxin and performing purification treating on a water body having tetrodotoxin. The distiller's yeast is made of raw materials such as food crops and largehead atractylodes, and is prepared by adding 5-10 g of rhizopus oryzae mould starter and aspergillus niger mould starter every 100 g of the raw materials. The microorganism group of the distiller's yeast after fermentation can be used for degrading the tetrodotoxin. The usage of the invention applies the microorganism group to tetrodotoxin degradation, which has the advantages of simple process, high treatment efficiency, low cost, and promising application prospect.