2823results about How to "Easy to prepare" patented technology

The invention belongs to the technical field of environmental protection, and discloses a method for removing pollutants in sewage. A composite microbial inoculant is used in the method and comprises rhodococcusrhodochrous, thiobacillus denitrificans, pseudomonas stutzeri, sphingomonas, bacillus pumilus and phanerochaete chrysosporium. According to the method, the pollutants are mainly treated by using microorganisms, so that the pollutants containing ammonia, nitrogen, sulfur and phosphorus can be effectively removed, and the investment cost is low; the method has broad application prospect.

The invention provides a carbon nanofiber aerogel as well as a preparation method and the application of the carbon nanofiber aerogel. The method comprises the following steps: a), obtaining neutral bacterial cellulose blocks by soaking bacterial cellulose blocks into deionized water for deacidification; b), using liquid nitrogen to refrigerate the neutral bacterial cellulose blocks and drying in a freeze dryer to obtain a bacterial cellulose aerogel; and c), warming the bacterial cellulose aerogel and performing high-temperature pyrolysis to obtain the carbon nanofiber aerogel. The preparation method for the carbon nanofiber aerogel, provided by the invention, is simple, feasible and good in repeatability, and the raw material is cheap and easy to obtain, so that large-scale preparation can be realized easily; the carbon nanofiber aerogel prepared by the invention has good lipophilicity and facilitates adsorbing raw oil and chemical reagent during raw oil pollution and chemical reagent leakage; and in addition, as the carbon nanofiber aerogel has electrical conductivity and elasticity, the carbon nanofiber aerogel can be further used for preparing a pressure sensor.

The present invention relates to a yuyang life-prolong medicated, tea, consisting of two portions of the Chinese medicinal material and tea, in which the Chinese medicinal material contains 44 Chinese medicines of ginseng. American ginseng, codonopsis root, astragalus root, ovate atractylodes root, Chinese yam, pseuostellaria root, licorice and others, and the tea can be black tea or green tea oriron goddess or souchong or jasmine tea. Its preparation method includes the following steps: making the above-mentioned Chinese medicinal materials into medicine powder, and moistening tea by means of steaming process, and spreading on the working field, spraying the Chinese medicine powder on the tea surface, and make the Chinese medicine powder be adsorbed on the tea surface, drying, bagging and packaging so as to obtain the invented finished product with health-care function.

The invention discloses a non-mercury catalyst used in the acetylene hydrochlorination and preparation method thereof. The method includes the following steps: (1) dissolving noble metal chloride 0.5-3 parts by weight and base metal chloride 1-10 parts by weight into 2-4 mol/L hydrochloric acid solution to obtain a 0.01-0.05mol/L noble metal chloride solution; (2) adding the activated carbon 100 parts by weight into the solution at room temperature for 5-12 hours; (3) evaporating the immersion liquid on the activated carbon at 80-100 DEG C, drying at 70-80 DEG C for 2-4 hours and calcining at 120-140 DEG C for 4-12 hours; (4) and activating in hydrogen chloride atmosphere for 0.5-3 hours. The inventive catalyst can be used for green synthesis of vinyl chloride monomer to reach a conversion rate of acetylene up to 95-98% and selectivity of vinyl chloride greater than 99%.

The invention relates to high-strength ultra-high-toughness concrete and a preparation method thereof. The concrete is prepared from, by weight, 400-800 parts of cement, 100-250 parts of silica fume, 200-500 parts of slag powder, 200-500 parts of fly ash, 200-500 parts of quartz powder, 800-1,000 parts of quartz sand, 20-40 parts of a water reducing agent, 180-250 parts of water and 15-25 parts of polyethylene fibers. When the concrete is prepared, the cement, the silica fume, the slag powder, the fly ash, the quartz powder and the quartz sand are added into a stirrer by weight, and the dry powder is stirred for 2-3 min and fully mixed to be uniform; after stirring is finished, the mixed dry powder is transferred into a mold, vibrating is conducted for 1-2 min for molding, curing and demolding are conducted, and then the high-strength ultra-high-toughness concrete is prepared. Compared with the prior art, the concrete has the advantages that the compressive strength reaches 120-150 MPa, the breaking strength reaches 30-50 MPa, the tensile strength reaches 15-22 MPa, and the tensile elongation reaches 4%-8% and has the very good application prospect.

The invention discloses a methane reforming catalyst for the production of hydrogen and a preparation method thereof, which more particularly relates to a Ni methane vapor reforming catalyst for the production of hydrogen which takes a nanometer cerium zirconium composite oxide as the carrier and the corresponding preparation method, and belongs to the methane reforming catalyst field. The catalyst comprises 5-30 wt% of active Ni, 0-10 wt% of noble metal catalytic promoter, 0-10 wt% of rare earth and/or the catalytic promoter of alkaline earth oxide, 50-95 wt% of nanometer cerium zirconium composite oxide carrier with the particle diameter of 5-20 nm. The invention is characterized by simple preparation method, high reactivity, strong anti carbon performance, good stability, low cost, etc.; when the invention is applied to the methane vapor reforming catalyst for producing hydrogen, the requirements of industrialization on catalyst reactivity and usage life can be satisfied. The invention can be largely applied in fuel cell-hydrogen area.

The invention provides a thermoplasticity sizing agent for a carbon fiber as well as a preparation method and a usage method thereof and relates to solvent sizing agent for a carbon fiber as well as a preparation method and a usage method thereof. According to the invention, the problems that the existing thermoplastic sizing agent is complicate in preparation process and pollutes the environment are solved. The preparation method is as follows: the thermoplastic resin, an organic solvent A and an adjuvant are mixed and stirred uniformly so as to obtain the thermoplastic sizing agent, when being used, the carbon fiber is dipped in the thermoplasticity sixing agent, then fractioning is carried out on the carbon fiber with agent and the treated carbon fiber is dipped in an organic solvent B, and finally the carbon fiber is dried. According to the invention, the wettability of the carbon fiber and the high performance thermoplasticity resin of polyarylether can be improved, the boundary bonding performance of the carbon fiber or the resin matrix composite of thermoplasticity polyarylether can be improved, and the thermoplasticity sizing agent has the advantages that the cost is low, the performance is stable, the utilization is stable and the environment is not polluted. The thermoplasticity sizing agent for the carbon fiber is used for the surface treatment of a carbon fiber material.

The invention relates to a seasoning which comprises the following components in parts by weight: 3 parts of red pepper, 0.5 part of pepper, 0.5 part of cassia bark, 0.4 part of myrcia, 0.3 part of clove, 0.1 part of black pepper, 0.3 part of pericarpium citri reticulatae, 0.2 part of kaempferiae, 0.1 part of radix angelicae, 2 parts of fennel, 0.2 part of galangal, 0.3 part of liquorice, 0.2 part of netmeg, 0.2 part of fructus amomi, 0.3 part of anise, 0.1 part of cumin, 0.5 part of amomum tsao-ko and 0.5 part of allspice. The seasoning has the functions of stimulating appetite and helping digestion, and has a health care effect.

The invention discloses a preparing method of a manganese oxide-charcoal composite adsorbent, which comprises following steps: (1) air-drying or drying a biomass raw material, pulverizing into powder and uniformly mixing for standby; (2) taking potassium permanganate or sodium permanganate as a pre-treating agent, and performing pretreatment on the biomass raw material by adopting an equivalent-volume impregnation method; (3) drying, pyrolyzing and carbonizing the pretreated material to prepare the composite adsorbent material; (4) soaking the obtained composite adsorbent material with inorganic acid, and washing and drying to obtain the manganese oxide-charcoal composite adsorbent finished product. The method is simple, the prepared composite adsorbent is suitable for an adsorption method as an adsorbent for treating heavy metal ion-containing waste water, and has an advantage in the aspect of treating the acid heavy metal ion waste water particularly. The adsorbent can also serve as a conditioner for soil polluted by heavy metal ions, and achieves an action of controlling the absorption of plants to heavy metal ions by adsorbing the heavy ion ions after being applied into the soil.

The invention relates to a cleaning method of a reverse osmosis membrane. By aiming at reverse osmosis membrane elements polluted by polyacrylamide, chemical agents and cleaning devices are used for realizing various cleaning modes of continuous cleaning and intermittent cleaning, positive cleaning and opposite cleaning, acidic cleaning agent and alkaline cleaning agent alternate using, and the pure water forward osmosis flushing. The cleaning method has the characteristics that the cleaning agent preparation is simple, the cleaning operation process is easy to control, the cleaning condition is mild, the reverse osmosis membrane element is not damaged, the performance of the reverse osmosis membrane is efficiently recovered, and the like.

The invention relates to the field of concrete admixtures and particularly relates to a hydration heat regulating and controlling material as well as a preparation method and an application thereof. According to the material with a hydration heat regulating and controlling function, a component is surface cross-linked dextrin prepared by a cross-linking reaction. The invention discloses the hydration heat regulating and controlling material which can greatly regulate and control the hydration speed of cement, reduce the temperature rise of concrete and does not influence the middle-period and post-period strength of the concrete.

The invention belongs to the technical field of gel polymer electrolytes and particularly discloses a phosphorus-containing crosslinked gel polymer electrolyte and an on-site thermal-polymerization preparation method and application thereof. The preparation method comprises the steps of preparing the following raw materials, of which the total weight percent is 100%: 5-15% of polymerization monomers, 3-10% of crosslinker, 0.01-1.0% of thermal initiator and 75-90% of lithium-ion battery liquid electrolyte, uniformly mixing, and then, reacting for 20-100 minutes at the temperature of 75-150 DEG C under the protection of inert gas, thereby obtaining the phosphorus-containing crosslinked gel polymer electrolyte. The invention further discloses application of the phosphorus-containing crosslinked gel polymer electrolyte in the preparation of solid lithium-ion batteries. The invention provides novel phosphates and/or phosphonates, containing double bonds, which serve as monomers of the gel polymer electrolyte, and the phosphorus-containing crosslinked gel polymer electrolyte designed and synthesized from the monomers has the advantages of simple and convenient preparation method, high ionic conductivity, high thermal stability and good electrochemical stability, so that phosphorus-containing crosslinked gel polymer electrolytes with relatively good stability are provided for the practical application of the solid lithium-ion batteries and high-power lithium-ion batteries.

The invention discloses a method for preparing polymer porous nanofiber through mixed phase separation. The diameter of the prepared polymer porous nanofiber is between 300nm and 900nm, and the aperture is 1 to 120nm. The preparation method for the polymer porous nanofiber comprises the following steps of: mixing a polymer, an additive and a solvent according to certain proportion; heating and stirring the mixture until the mixture is completely dissolved and forms transparent solution; performing electrostatic spinning on the solution; depositing primarily generated fibers in ice-water bath or the water bath with the temperature of 0 to 20 DEG C, wherein thermally induced phase separation and nonsolvent induced phase separation are caused; and extracting residual solvent and additive through post treatment to obtain the polymer porous nanofiber. The preparation method is simple and highly effective and is convenient to perform; and polymer porous nanofibers with different diameters and porosities can be prepared by adjusting the conditions of electrostatic spinning. The method has enormous application prospect in aspects, such as high-tech composite materials, water treatment, catalyst carriers, electrode materials and the like.

The invention discloses a preparation method of an environmentally-friendly aqueous polyurethane adhesive. The environmentally-friendly aqueous polyurethane adhesive is prepared from the following raw materials: polydiol with a number-average molecular weight between 500 and 5,000, a hydrophobic chain extender with a number-average molecular weight between 61 and 400, an inner-crosslinking agent,a hydrophilic chain extender, diisocyanate, a catalyst, an organic solvent, a neutralizing agent and deionized water. The preparation process comprises: heating the polydiol, the hydrophobic chain extender, the inner-crosslinking agent and the hydrophilic chain extender in a protective atmosphere of nitrogen, dewatering under vacuume and cooling; adding diisocyanate for reaction, cooling and adding a catalyst for a reaction; adding a proper amount of organic solvent for regulating viscosity; and adding aqueous solution of the neutralizing agent under the action of a high-speed shearing force to obtain the product. The product has the advantages of extremely low organic solvent content, high stability, insusceptibility to agglomeration and sedimentation, long storage period and low thermalactivation temperature, can be used for dry type combination and has the characteristics of high initial viscosity, high flexibility, high breathability, light odor and the like.

The invention belongs to the technical field of transition metal sulfide-carbon materials, and particularly relates to a vulcanized cobalt-nickel/graphene/carbon nano fiber composite material and a preparation method thereof. The preparation method includes the steps that polyacrylonitrile nano fibers are prepared through electrostatic spinning, oxidized graphene/polyacrylonitrile nano fiber aerogel is prepared through mechanical stirring and freezing drying, then graphene/carbon nano fiber aerogel is prepared through high-temperature carbonization, and finally, vulcanized cobalt-nickel nanosheets grow in situ on the graphene/carbon nano fiber aerogel through the one-step hydrothermal method. The vulcanized cobalt-nickel/graphene/carbon nano fiber composite material prepared through the method has the advantages that the material has a three-dimensional porous space structure, conductivity is good and chemical properties are stable, and can serve as an ideal high-performance electro-catalysis material and electrode materials of new energy devices such as lithium ion batteries and solar batteries.

The present invention is preparation process of biodegradable polyamidoester. Dibasic alcohol and dibasic acid are first melt polycondensated to prepare low molecular weight polyester pre-polymer with number average molecular weight of 2000-9700 or inherent viscosity below 0.5; and the low molecular weight polyester pre-polymer is then melt and chain expanded with binary fatty oxazoline or binary aromatic oxazoline in the presence of chain expander to prepare biodegradable polyamidoester with number average molecular weight up to 39 KD and inherent viscosity up to 1.25 dL/g.

The invention relates to an application of natural dyes from balsamine in dyeing, comprising the following steps: 1) performing pre-treatment on raw materials; 2) performing ultrasonic wave extracting on raw materials; 3) concentrating the filtrate to get the pasty raw balsamine natural dye; 4) refining the natural dye; 5) performing dying technique on real silks and cotton fabrics by the natural dyes from balsamine. The preparation method is simple, the cost is low, and the extracting efficiency is high; the obtained dyed fabric is safe, environment-friendly, biodegradable, good in pigment stability, and specific in health care performance; and the application has wide application prospect.

The invention relates to a novel solid heterogeneous catalyst for hydroformylation of olefins, a preparation method and an application thereof and relates to a solid heterogeneous catalyst applied in hydroformylation of olefins. The solid heterogeneous catalyst is composed of a metal component and an organic ligand polymer, wherein the metal component is one or more selected from metallic Rh, Ir or Co; the organic ligand polymer is a polymer which is generated by polymerization of an organic ligand monomer containing P and alkylene and optional N by a solvothermal polymerization method and has large specific surface area and hierarchical porous structure; and the metal component reacts with P atom or N in the organic ligand polymer skeleton to form a coordinate bond and the coordinate bond exists in the state of single atomic dispersion. In hydroformylation of olefins, an intermediate active species which is similar to a homogeneous catalyst is generated in situ due to coordination between the metal component and P and/or N atom. The catalyst provided by the invention has excellent catalytic performance, is easy to separate and has high stability.

The invention relates to a preparation method of plant sterol ester, which comprises heating fatty acid and phytosterol to 120 to 180DEG C, dissolving, adding catalyst, controlling temperature at 120 to 180DEG C to process esterification for 5-12h, separating and purifying reaction solution to obtain plant sterol ester, wherein the weight ratio of the fatty acid and the phytosterol is 1-5;1, the catalyst is calcium oxide, magnesia or lanthanum oxide or relative mixture, the catalyst is 0.2-3% of the total phytosterol and fatty acid. The preparation method of plant sterol ester uses solvent-free system, while the synthesis route is environment-friendly, effective, simple and suitable for large-scale preparation and separation.

The invention discloses a catalytic degreasing type binder used for powder injection molding and feedstock preparation method; the catalytic degreasing type binder used for powder injection molding consists of polyoxymethylene homopolymer, high-density polyethylene and paraffin wax, as well as compatibilizer, plasticizer, and surfactant, with the volume percentage thereof as follows: 85 to 95 percent of polyoxymethylene homopolymer, 4 to 9 percent of high-density polyethylene, 3 to 6 percent of paraffin wax, 0.5 to 1 percent of compatibilizer, 1 to 2 percent of plasticizer, and 0.5 to 1 percent of surfactant. According to the binder ratio and a certain powder load, the binder and the powder are added into an internal mixer so as to undertake mixing and prepare catalytic degreasing type feedstock. The catalytic degreasing type binder used for powder injection molding and feedstock preparation method overcome the shortage that only the imported catalytic degreasing type feedstock can be applied in the current PIM industrial production and thus causing the production cost to be expensive, thereby reducing the cost of using the catalytic degreasing technology and promoting the extensive application thereof in the PIM industrial production.

The invention relates to a normal-temperature size mixing and normal-temperature warp sizing method, which comprises the following steps of: mixing starch size at the normal temperature of between 20 and 40 DEG C under a neutral or alkali condition to form size, then adding neutral or low-pH polymer size, emulsified liquid wax and penetrating agent component into the size, stirring and mixing themixture uniformly in a size mixing barrel at the normal temperature, and then sizing warps on a sizing machine at the normal temperature. The method is simple, low in cost, environment-friendly and suitable for industrialized production; and when the method is suitable for mixing the size and sizing the warps at the normal temperature (20 to 40 DEG C), the size is uniform, has good liquidity, does not gel or deposit, and has the same sizing effect as high-temperature boiling and high-temperature sizing.

The present invention provides an iron-based catalyst for low-carbon olefin production through CO2 hydrogenation, wherein the main active component of the catalyst is Fe3O4, the auxiliary agent is added or is not added, and is an oxide, the content of the auxiliary agent accounts for 0-30% of the total mass of the catalyst, and the auxiliary agent is one or more than two selected from the oxide of Si, Al, Mn, K, Cu, Na, Zr, V, Zn and Ce. The present invention further provides a preparation method and applications of the catalyst. According to the present invention, the catalyst has the following beneficial effects that 1) the particles have characteristics of regular spherical shape, uniform spatial distribution, and narrow size distribution; 2) the raw materials are inexpensive and easy to obtain, and the preparation method has characteristics of simpleness and low cost, and is suitable for industrial production; 3) the catalyst has characteristics of high mechanical strength, good wear resistance and compression resistance, and is suitable for the fixed bed, the fluidized bed and the slurry bed; 4) the CO2 hydrogenation activity and the low-carbon olefin selectivity are high, the single-pass conversion rate can achieve more than 40%, the methane selectivity in the hydrocarbon product is lower than 15%, the low-carbon olefin selectivity is higher than 40%, the alkene/alkane ratio (O/P) is 2-12, and the yield of the low-carbon olefin can achieve 10-60 g/m<3> (CO2+H2).

The invention discloses a method for preparing a super-hydrophobic nano-magnetic thin film. The method comprises the following steps of: preparing nano iron oxide-silica core-shell particles; adding the nano iron oxide-silica core-shell particles into an alcohol solution, and adding a silane coupling agent and a catalyst to obtain nano iron oxide-silica core-shell particles of which the surfaces are modified by ethylene; and dispersing the surface modified nano iron oxide-silica core-shell particles in a benzene organic solvent, adding an initiator and styrene to obtain a nano iron oxide-silica-polystyrene composite material, dispersing the nano iron oxide-silica-polystyrene composite material through ultrasonic waves, and preparing the super-hydrophobic nano-magnetic thin film by using acasting method or a pulling method. The method has the advantages of simple preparation process and low cost, and can be applied to the fields such as magnetic recording, magnetic separation, biomedicines, environmental protection, military and the like.

The invention discloses a lithium metal cathode coated with a solid polymer electrolyte and a preparation method thereof. The lithium metal cathode coated with the solid polymer electrolyte is characterized in that metal lithium is used as a cathode, and the surface of the metal lithium is coated with the solid polymer electrolyte in an in-situ polymerizing way; the solid polymer electrolyte is apolymer of vinylene carbonate and polyethylene glycol (methyl) acrylate, or a polymer of vinylene carbonate, polyethylene glycol (methyl) acrylate and a framework monomer. The lithium metal cathode has the advantages that the preparation is simple, the room-temperature conductivity is high, the oxidizing decomposing potential is greater than 4.8V, the stability in interface with the metal lithiumis good, and the cycle property of the metal lithium battery using the metal lithium cathode coated with the electrolyte is obviously improved.

The invention discloses a fully human anti-CTLA-4 monoclonal antibody, a preparation method and an application, and belongs to the technical field of antibody drug development and production. The fully human anti-CTLA-4 monoclonal antibody is screened out by constructing a high-capacity natural human phage antibody library, and has high affinity and low dissociation rate (low immunogenicity) for human CTLA-4 molecules. Compared with a chimeric or humanized antibody, the fully human anti-CTLA-4 monoclonal antibody can prevent a lot of side effects when being applied on a human body. The fully human anti-CTLA-4 monoclonal antibody is simple in preparation method, can be efficiently expressed in animal cells and is suitable for large-scale production. Besides, the fully human anti-CTLA-4 monoclonal antibody can suppress growth of tumor cells significantly, and has wide application prospects in resisting tumor, resisting infection and treating autoimmune diseases.

The invention relates to a method for preparing a catalyst with active metal component nonuniform distribution, which comprises the step of introducing effective quantity of at least one metal component selected from a VIII group and effective quantity of at least one metal component selected from a VIB group on a carrier by a soaking method. The method is characterized in that the soaking process comprises the following steps: firstly, mixing one or more acid selected from nitric acid, phosphoric acid, oxalic acid, citric acid, tartaric acid, pimelic acid and adipic acid, a compound of at least one metal component containing the VIB group, a compound of at least one metal component containing the VIII group, and water in sequence into a solution; secondly, using the mixed solution prepared in the first step to soak the carrier at room temperature, wherein the soaking time is between 1 and 5 hours; and thirdly, drying the carrier soaked in the second step for 2 to 10 hours at a temperature of between 60 and 160 DEG C, and roasting the soaked carrier for 2 to 5 hours at a temperature of between 400 and 600 DEG C. The method adopts the one-step soaking method to greatly simplify the preparation method of the catalyst.

The invention discloses a boron-gallium codoped quasi-monocrystalline silicon, which comprises boron and/or phosphorus with the concentration of 1*10<14>/cm<3>-5*10<16>/cm<3> and gallium with the concentration of 1*10<14>-1*10<18>/cm<3>. The quasi-monocrystalline silicon can be used for manufacturing an efficient laminar solar cell, and synchronously, due to a boron-gallium codoping effect, the generation of a boron-oxygen complex is decreased or avoided, thereby decreasing the photoinduced attenuation of the cell. The invention further discloses a preparation method of the boron-gallium codoped quasi-monocrystalline silicon, and the preparation method is simple and convenient, is easy to operate, has low cost, and can be used for scale production.

The invention relates to a quaternary ammonium salt type surfactant fracturing fluid which is prepared from the following components in percentage by weight: 0.1-7% of double ionic head group/three ionic head group/four ionic head group quaternary ammonium salt type surfactant, 0.1-2% of salt and the balance of water. The quaternary ammonium salt type surfactant belongs to an amphiphilic structure surfactant; the preparation method is simple, has the advantage of mild reaction conditions, and can easily implement industrial production; and the surfactant has obvious viscoelasticity in a dilute solution, is a low-molecular thickening agent with excellent properties, and can satisfy the demands for high-temperature oil-gas reservoirs of which the oil reservoir temperature is 120 DEG C.

The invention discloses normal-temperature processed cheese and a preparation method thereof. The normal-temperature processed cheese comprises the following components in percentage by weight: 0 to 15 percent of natural cheese, 10 to 25 percent of fat product, 10 to 33 percent of other milk solid substance except the natural cheese and the fat product, 4 to 12 percent of starch, 0.6 to 2.7 percent of stabilizer, 3 to 7 percent of plant protein, 0.1 to 0.2 percent of antioxidant, 1 to 1.8 percent of emulsifying salt and 25.8 to 40 percent of water. The normal-temperature processed cheese can keep the original characteristic flavor and functional properties in normal-temperature shelf life.

The invention discloses a preparation method of silicon and carbon composite microspheres and an application thereof as a negative electrode material of a lithium ion battery. The preparation method of the silicon and carbon composite microspheres comprises the following steps: 1) spray drying is carried out on solution containing a silicon source and a carbon source, thus obtaining spherical particles, wherein the carbon source is carbon-containing high molecular polymer; and 2) the spherical particles are sintered under non-oxidizing atmosphere, thus obtaining the silicon and carbon composite microspheres. The preparation method is simple and practicable, can realize large-scale production and has high practicality degree, and the obtained silicon and carbon composite microspheres integrate the advantages of a silicon and carbon composite material and a porous material and improve the problems of poor cyclicity and low coulomb efficiency of a silicon-based material as the negative electrode material of the lithium ion battery.