120results about How to "Expand the range of raw materials" patented technology

The invention discloses a method to prepare leaven of fertilizer and application, which is characterized by the following: allocating raw material with mass ratio at 10-80 wt industrial residue of ferment, 5-30 wt straw, 5-30 wt cake meal, 10-30 wt bran or rice bran, 1.5-2 wt aquacare, 0.5-1 wt NaCl and or amylaceum, and 1-30 wt brown ball Azotobacter (Azotobacter chroococcum), 1-30 wt bacillus megaterium (Bacillus megaterium), 1-30 wt bacillus licheniformis (Bacillus licheniformis), 1-30 wt plant lactobacillus (Lactobacillus plantarum) and 1-30 wt 1-5 strain of saccharomycopsis fibuligera (Saccharomycopsis fibuligera); producing the product.

The invention relates to a desulfurizing agent for reforming stock oil and a preparation method thereof, in particular to the desulfurizing agent used for desorbing sulfides in the reforming stock oilsuch as H2S and the like. The desulfurizing agent is characterized by consisting of 10%-40% of ZnO, 15%-22% of NiO, 10%-17% of Al2O3, 5%-22% of SiO2 and the balance inevitable impurities. The desulfurizing agent takes zinc and nickel as active components and bentonite (or diatomite, or white clay, or zeolite, or high-alumina cement and or common cement) as a carrier, and active components thereofare directly present in the form of oxides of zinc and nickel or oxides transformed by corresponding carbonate (basic carbonate) and nitrate. In the invention, the desulfurizing agent has enlarged raw material range, thus effectively reducing raw material cost, simplifying production process of the desulfurizing agent, lowering production cost, improving strength to more than twice, and prolonging service life of the desulfurizing agent.

The invention discloses a method for chemically preparing nano microcrystalline cellulose by utilizing moso bamboo. The adopted method has key points that the moso bamboo is respectively subjected to alkali solution treatment and chlorine-containing solution treatment to purify cellulose, moso bamboo fibers are catalyzed and hydrolyzed by adopting an organic acid and a moso bamboo nano microcrystalline cellulose product is collected by virtue of an ultrafiltration membrane. The method disclosed by the invention is rapid and efficient and is especially applicable to preparation of nano microcrystalline cellulose by adopting the moso bamboo raw material. According to the method disclosed by the invention, a moso bamboo resource is introduced into a fiber raw material used for preparing the nano microcrystalline cellulose, the range of the raw material used for preparing the nano microcrystalline cellulose is expanded, rapid break-through of limitation of source of the raw material of the nano microcrystalline cellulose can be facilitated, and an innovative thinking is provided for high-valued utilization of the moso bamboo resource, so that economic income of peasant in bamboo regions in China can be reliably increased, and the method disclosed by the invention has practical significance.

The invention belongs to the novel cement material field and specifically relates to the preparation of a single-component alkali-activated cement and an application method thereof, wherein a raw material 1 including SiO2, Al2O3, and CaO are mixed with the raw material 2 including Na2O in a certain ratio; the ratio should be decided so that the percentage of the weight of each component of the calcined product, which is obtained by calcining the mixed materials at a temperature greater than or equal to 1100 DEG C, in the total weight is as follows: Al2O3: 8-25%; SiO2: 24-55%; CaO: 10-55%; and Na2O +0.658K2O: 6-25%; after being calcined at a temperature ranging from 950-1200 DEG C for 1.5-3 h, the mixed materials are then ground to obtain cement powder; the cement powder is mixed with water into paste; next, the paste is cured at 50-80 DEG C for 2-3 days so that neat cement paste briquettes excellent in strength can be obtained; and the strength can be continuously increased if curing is continuously performed under normal temperature. The preparation of the single-component alkali-activated cement has the following advantages that: the raw material range of the alkali-activated cement is greatly expanded; the storage, transportation and utilization of the cement are more convenient; and the improvement of the cementitious activity of the cement and the reduction of the cost are expected to be realized.

The invention relates to a preparation method of a fully biodegraded high-amylose based film. The invention resolves the problem that the present plastic film cannot be fully biodegraded. The preparation method of the fully biodegraded high-amylose based film includes following steps: (1) Gelatinization; (2) Blending; (3) Plasticization and Crosslinking; (4) Degasification and Drying, and the fully biodegraded high-amylose based film can be obtained by the preparation method. The products produced by the invention are characterized in safety, nontoxicity, full biodegradation, etc., thus having good use performance and degradation performance.

The invention discloses a preparation method for a bamboo pulp cellulose-based integrated Fenton catalyst Fe<3+>C2O4/R. The preparation method is characterized in that tri-valent iron and oxalic acid are subjected to coordination to form a complex Fe<3+>C2O4, and the complex Fe<3+>C2O4 is loaded on bamboo pulp cellulose-based porous resin R synthesized by bamboo pulp to form the integrated Fenton catalyst Fe<3+>C2O4/R; under visible light, hydrogen peroxide can be catalyzed in an acceleration manner to degrade dye type organic pollutants in printing and dyeing wastewater. A product prepared by the method is high in efficiency, environment-friendly and low in cost; the problems of secondary pollution, high oxidization cost, low degrading efficiency and the like which are caused by a fact that the Fenton reagent cannot be repeatedly used in the conventional dye type organic pollutant Fenton oxidization degrading are solved, and the creation concept of using bamboo resources in China in a high value is provided, and thus the preparation method has obvious environmental and social significance.

The invention discloses a method for producing silage by using dry yellow cornstalks. The method for producing the silage by using the dry yellow cornstalks comprises the steps that preprocessing is carried out on the dry yellow cornstalks through low-strength steam explosion, hemicellulose of the dry yellow cornstalks is partly degraded into monosaccharide and oligosaccharide, the shielding effect of lignin and the hemicellulose on cellulose is partly removed, the water content of the cornstalks after steam explosion is adjusted, and fermentation storage is carried out under the anaerobic condition. When the method for producing the silage by using the dry yellow cornstalks is adopted, the existing situation that ensiling operation cannot be carried out on the dry yellow cornstalks, and a certain amount of inoculant or enzymic preparations need to be added to the dry yellow cornstalks is changed, anaerobic fermentation can be carried out on the dry yellow cornstalks to produce the high-quality silage, the range of the raw material sources of the silage is expanded, the processing window period of ensiling operation is prolonged, and commercial production of the silage becomes possible.

The invention relates to a method for synthesizing a granular beta molecular sieve with montmorillonoid, comprising the following steps: acidification treatment and high-temperature roasting are carried out to the montmorillonoid, and the montmorillonoid which is acidified is soaked and heated by template agents, and then the montmorillonoid which is activated is used as raw material to provide total or partial aluminum source, and then the granular beta molecular sieve is prepared by adding template agents and carrying out hydrothermal crystallization; in the invention, the prepared beta molecular sieve grows on the surface of the montmorillonoid closely, so as to form a similar core-shell structure, and the catalytic reaction efficiency is improved by shortening the diffused route of reactants and product molecules in a molecular sieve crystal. The method not only expands the raw material range for synthesizing the beta molecular sieve, but also further reduces the preparation cost of the beta molecular sieve with a crystal seed method.

The invention relates to a process for preparing a needle coke raw material by using medium and low temperature coal tar, which comprises the following steps: 1) distilling the medium and low temperature coal tar, separating to obtain heavy distillate with the temperature more than 350DEG C; 2) sending the heavy distillate of the medium and low temperature coal tar to a reactor, under the existence of a catalyst, introducing hydrogen into the reactor, performing hydropyrolysis on the heavy distillate, wherein the catalyst is a Fe catalyst and the mass of the catalyst accounts for 0.01-3% of mass of the heavy distillate; the pressure during the hydropyrolysis is 7-12 MPa and the temperature is 350-550 DEG C; 3) sending the products after hydropyrolysis in the step 2) to a separator, and separating to obtain lower oil and higher oil; and 4) performing physical separation on the higher oil, and removing the catalyst. According to the hydropyrolysis treatment of the medium and low temperature coal tar, the content of condensed polycyclic aromatic hydrocarbons can be greatly increased and the raw material suitable for preparing needle coke can be obtained.

The invention discloses a catalyst used for a reaction for preparing tetrahydronaphthalene through naphthalene hydrogenation and a preparation method and application of the catalyst. The catalyst comprises a catalyst carrier, active components and auxiliaries, and the active components and the auxiliaries are loaded on the catalyst carrier. The catalyst is good in activity and stability, is not high in requirement for raw materials, and is applicable to the reaction for preparing the tetrahydronaphthalene through naphthalene hydrogenation, wherein the naphthalene content is larger than or equal to 94%, the naphthalene conversion rate can be higher than 95%, and the selectivity of the tetrahydronaphthalene is higher than 85%. A preparation process of the catalyst is simple, scientific and convenient to operate, equipment is simple, and the investment cost is low.

The invention discloses a lithium-ion battery separator prepared by a polyethylene mixture and a preparation method of the lithium-ion battery separator. The invention relates to a polyolefin microporous film material for the lithium-ion battery separator and a preparation method of the polyolefin microporous film material. The method comprises the following steps: fully swelling ultrahigh molecular weight polyethylene (UHMWPE) and a certain types of diluents to form UHMWPE jell; performing melt blending on a certain amount of UHMWPE jell and high-density polyethylene (HDPE) on a double-screw extruder, performing extrusion casting on a blending resin on casting equipment, and preparing a casting base film with a perfect oriented lamellar crystal structure; and performing heat treatment on the casting base film to perform cold drawing and hot drawing, and performing heat setting to prepare the polyethylene microporous film. The limitation on the range of raw material resin melt flow rate (molecular weight) range in the process of preparing the polyethylene microporous film in a conventional uniaxial stretching process is broken, the casting base film with the perfect oriented lamellar crystal structure is prepared by using polyethylene resin with wide melt flow rate range, and the polyethylene resin raw material range suitable for preparing the polyethylene microporous film in the uniaxial stretching method is widened.

The invention discloses a method for preparing a temperature/pH sensitive hydrogel by using bamboo dissolving pulp. The key point of the method is that the method comprises the steps of: carrying out crushing and sieving for pre-treatment of the bamboo dissolving pulp; dissolving the obtained bamboo dissolving pulp powder by using a mixed aqueous solution of sodium hydroxide and urea to obtain a cellulose solution of the bamboo dissolving pulp; and carrying out copolymerization with acrylic acid, acrylamide and N-isopropylacrylamide to obtain the temperature/pH sensitive hydrogel. The method is fast and efficient, and is particularly suitable for a technical process for preparing the temperature/pH sensitive hydrogel by using bamboo cellulose. A bamboo resource is introduced into raw materials for preparing the temperature/pH sensitive hydrogel, so that the supply range of the raw materials of the hydrogel is expanded, and the limitation on the raw material source of the temperature/pH sensitive hydrogel is quickly broken through preferably. Meanwhile, the invention provides an innovative concept for high value utilization of the bamboo source, so that the economic income of farmers in bamboo regions of China can be practically improved, and the method has important practical significance and application value.

The invention discloses a method for preparing a geopolymeric material from bentonite. The method comprises the following steps of: uniformly mixing the bentonite with an excitant I, wherein the granularity of a solid phase in a mixture is less than or equal to 10 percent of the mass ratio of 200-mesh screen residues, and the mass ratio of the excitant I to the bentonite is 0.1-0.25; (2) calcining the mixture obtained in the step (1) at the high preserved temperature of 700-1,000 DEG C for 2-4 hours, and regrinding a calcining product to obtain chamotte powder, wherein granularity of the chamotte powder is less than or equal to 10 percent of the mass ratio of 200-mesh screen residues; and (3) doping an aqueous solution of an excitant II into the chamotte powder obtained in the step (2), mixing uniformly, compacting by vibrating, and preserving in a wet state at the temperature of 60-95 DEG C to obtain the geopolymeric material, wherein a water cement ratio, i.e., the mass ratio of theaqueous solution of the excitant II to the chamotte powder is 0.2-0.4; and the mass ratio of a solid phase in the excitant II and the non-calcined bentonite is 0-0.05. The method plays a remarkable role in expanding raw material sources, reducing cost, enhancing use convenience, and the like.

The invention relates to a method for extracting algin from fresh Sargassum fusiforme. The method comprises the following steps of dye fixation, water washing, fragmentation, enzymatic hydrolysis, transformation, coarse filtration, dilution, foaming and floating, fine filtration, acidification bleaching, dehydration, solid phase transformation, granulation, finishing and drying. The method provided by the invention has the advantages that 1, an enzymatic hydrolysis technology is adopted and thus the problem that algin is difficultly extracted from Sargassum fusiforme is solved; and fresh Sargassum fusiforme is used as a raw material for production of low-viscosity and ultralow-viscosity algin and thus a raw material source range of algin processing is widened; 2, an acidification technology replaces the traditional calcification technology and thus the problems of high calcium content, poor water-solubility and high insoluble substance content of the traditional algin are improved; and 3, a NaClO solution is dropwisely added into an extraction system during acidification to realize bleaching and thus the traditional bleaching technology characterized in that chlorine is fed into an algin solution subjected to fine filtration to realize bleaching is modified so that bleaching effects are better and technical processes are safer.

The invention discloses a method using high magnesium phosphorus gangue smelting reduction to prepare metal magnesium, which comprises the following steps of (1) calcining high magnesium phosphorus gangue into high magnesium phosphorus gangue calcined dolomite at the temperature of 900 DEG C to 1200 DEG C; (2) burdening the high magnesium phosphorus gangue calcined dolomite, ferrosilicon alloy, alumina and silica according to certain mass percent, and mixing evenly to obtain mixed materials; and (3) adding the mixed materials in a reduction reactor to perform smelting reduction reaction at the certain temperature and pressure, and collecting condensed magnesium vapor generated in reaction to achieve metal magnesium. The method has the advantages of being low in cost of raw materials, easy to operate reaction and high in metal magnesium recycling rate, turning waste into wealth, well recycling magnesium resource in the high magnesium phosphorus gangue and having obvious economic and environmental benefits.

The invention discloses a 3D printing material and a 3D printing product based on oxidized graphene and preparation methods of the 3D printing material and the 3D printing product. Main ingredients of the 3D printing material based on the oxidized graphene are the oxidized graphene, aniline and water. By the characteristic that electrostatic attraction, hydrogen bonds and Pi-Pi interact between the oxidized graphene and the aniline, the oxidized graphene and the aniline are combined with each other together to prepare the 3D printing material, the range of raw materials of the 3D printing material is expanded, moreover, the prepared 3D printing material is suitable in viscosity and can be formed at normal temperature without being heated, therefore, the 3D printing material can meet requirements of 3D printing, a corresponding 3D printing process and structures of devices can be simplified to reduce costs for 3D printing, and then the 3D printing material is suitable for large-scale production of 3D printing products.

The invention discloses a preparation method of a completely biodegraded thin film. The preparation method comprises the following steps: (1) mixing high amylosestarch with water to obtain starch milk with mass concentration of 13-17%, adjusting the pH value of the starch milk to 8.5-9.5 by 0.3-0.5mol/L sodium hydroxide, heating the starch milk to 90-110DEG C and gelatinizing for 20-40min at a stirring speed of 300-400r/min; (2) blending a polyvinyl alcohol water solution with mass concentration of 7-9% with the starch milk at a stirring speed of 100-140DEG C, wherein the mass ratio of the polyvinyl alcohol to the high amylose starch is 4: 6. The amylose starch content of the used high amylose maize starch is 80-82%; a glyoxal water solution is dripped to ensure that glyoxal is fully reacted to completely join the crosslinking; membrane liquid vacuum degassing is carried out to remove the bubbles caused in the stirring process.

The invention provides a kiln system and a method for firing ceramsite containing calorific value raw materials and producing waste heat as a byproduct, and belongs to the field of ceramic product firing and kilns. The kiln system comprises a drying section, a preheating section, a sintering section, a soaking section and a cooling section, and further comprises a decarburization section arranged between the drying section and the preheating section; the decarburization section comprises an ignition area, a hot air combustion/pyrolysis area and a waste heat recovery pipeline, a heat source is introduced into an ignition area, so that the temperature of the ceramsite containing the calorific value raw materials in the area is 400-900 DEG C, and the hot air combustion/pyrolysis area is used for combustion or pyrolysis of carbon-containing materials and organic components in the calorific value raw materials in the ceramsite; and a waste heat recovery pipeline is used for discharging the decarburized flue gas and recovering heat released after combustion/pyrolysis of the ceramsite raw material containing heat value in the flue gas. According to the method, the raw material range of the ceramsite is expanded, ceramsite black cores and quality reduction caused by high-mixing-amount and high-calorific-value solid waste are avoided, meanwhile, decarburization heat is recycled and utilized, and the method is low in comprehensive energy consumption, balanced in temperature control and environmentally friendly.

The invention discloses a lightweight paper made from a high-proportion bamboo pulp and a making method of the lightweight paper and relates to the papermaking field. The lightweight paper is prepared from a mixed pulp of a chemical bamboo pulp, a mechanical pulp and a long-fiber CTMP pulp in the weight ratio of (50-55): (45-40): (5-10), and the following accessories in percentage by weight: 1.2% of starch, 10% of talcum powder, 0.6%-0.8% of dispersed rosin size, 6%-7% of aluminum sulfate, and 0.2kg/t of polyacrylamide PL1510; in the papermaking process: the indices, such as beating degree and ISO whiteness, of the chemical bamboo pulp and the mechanical pulp before blending are controlled; the following quality indices of the pulp applied to a screen are controlled: pH value of 5.8-6.2, concentration of 0.7-0.9% and beating degree of 47-55degree S. According to the lightweight paper, the high-proportion bamboo pulp is adopted, the raw material range of the lightweight paper is expanded, the product cost is low, the product is pure environmentally friendly and green, and the pollution load is low.

The invention discloses a method for preparing lignin fibers for roads from corn straws, which comprises the following basic steps: carrying out low-intensity hydrothermal pretreatment on corn straws to partially dissociate the connection among cells, separating fibrocytes and impure cells by using a straw kneader, pulping the separated fiber material by a sulfate process to remove lignin and hemicellulose, decolorizing the fibers by using an acidic sodium chlorite solution, drying and pulverizing to obtain the flocculent lignin fibers. By using the agricultural waste corn straws instead of the needle-leaf wood to produce the lignin fibers, the method widens the production raw material range and reduces the environmental pollution sources.