40results about How to "Wide range of industrial uses" patented technology

The invention discloses a method for SOx in a gas by using ethylene glycol complex solution. Ethylene glycol and / or polyethylene glycol is mixed with organic acid or organic acid salt without containing nitrogen atoms in molecules to form the ethylene glycol complex solution, and the ethylene glycol complex solution is in contact with the gas containing Sox to absorb SOx in the gas, wherein x is equal to 2 and / or 3; the ethylene glycol complex solution in which SOx is absorbed is regenerated by using one or more ways of a heating method, a vacuum method, a gas stripping method, an ultrasonic method, a microwave method and a radiation method, sulfur dioxide and sulfur trioxide byproducts are released, and the regenerated ethylene glycol complex solution is recycled. The method can be applied to desulfurization of flue gases, incineration gases, coke furnace gases, synthetic waste gases in a dyestuff plant and sewage disposal gases in a chemical fibre factory, and other industrial raw material gases or waste gases containing SOx.

The invention belongs to the technical field of nanometer materials preparation with a novel function, and especially relates to a method for preparing surface modification oil solubility nanometer copper. The method comprises the following steps: taking copper alloy as raw material; adding organic solvent with modifier, adding acid or alkaline solution which can react with the alloy metal, fully reacting for 6-24h under the temperature of 0-100 DEG C, separating and purifying to obtain the surface modification oil solubility nanometer copper. The preparation method in the invention has simple process and equipment, easily obtained raw materials in cheap price, low cost, high yield and the like, which is applicable to large-scale industrial production.

The present invention discloses process of preparing monodispersive nanometer granular copper sulfide semiconductor. The preparation process with common copper salt, sodium sulfide and N, N-dialkyl dithio formate as material is one simple chemical reaction process. The present invention has the features of facile material, simple process, high efficiency, high yield, high stability, etc, and is suitable for industrial production.

Provided is a conductive polymer which is doped by acid, and a preparation method therefor. The conductive polymer has a base form with a weight average molecular weight of 5,000 or lower, and solubility for a polar organic solvent of 3% or higher. The conductive polymer of the present invention is soluble by a variety of polar organic solvents, which allows for free selection of solvent in accordance with the purpose of use and assures a broad range of industrial application. Further, the method for preparation of the conductive polymer according to the present invention is simple and reduces the amount of waste water, thereby reducing cost and contributing to environmental protection.

The invention discloses a preparation method of a nano-capsule composite phase change material. According to the invention, a composite emulsifier, a co-emulsifier and distilled water are added into a reaction kettle, such that a clarified solution is formed; an organic phase change material is added into the clarified solution, and stirring is carried out under a temperature higher by 5-10 DEG C than the phase change temperature, such that an emulsion is obtained; an inorganic silicon source and a stabilizing and dispersing agent are added into the emulsion, and the mixture is stirred, such that a uniformly dispersed stable emulsion is obtained; an acid solution catalyst is slowly dropped into the emulsion, such that silicon source hydrolysis and polymerization reactions are initiated; stirring is stopped when a white precipitate is completely precipitated; the reaction solution is naturally cooled to room temperature, and a precipitation solution is obtained; the precipitate is repeatedly washed by using a mixture of water and petroleum ether; and suction filtration and drying are carried out, such that the material is obtained. According to the nano-capsule composite phase change material provided by the invention, the particle size of capsule particles is smaller than 1mum. The material has relatively high chemical stability, thermal stability, heat transfer and thermal conduction performance, and phase change latent heat. The material can be widely applied in the fields of heat transfer and energy storage thermal insulation.

The invention relates to a preparation method of an organic phase change energy storage composite material, which is mainly based on a two-phase interfacial polymerization method and comprises the following steps: at a certain temperature, when an oil-soluble core material is molten, emulsifying the oil-soluble core material and water by utilizing a surfactant to form small droplets; then, cooling to solidify the small droplets into small solid particles; and then, polymerizing a shell material on the surfaces of the particles to form the organic phase change energy storage composite material with a core-shell structure. Because the core material and the shell material are respectively emulsified and then mixed for reacting, thus the emulsifying effect is good; and the core material is changed into small solid particles after being cooled, thus the adsorption rate of the shell material can be improved, the coating efficiency is improved, and the physicochemical stability of the composite material is enhanced.

The invention provides a heat transfer tube with rectangular staggered fins and application thereof. The inventive heat transfer tube comprises a tube body and a plurality of rectangular staggered fins fixed on the tube body. The outer edge of the lee side of rectangular staggered fin is flat, and the other three outer edges are staggered in cross section along thickness direction and respectively provided with 5-8 sphenoid narrow grooves. The inventive heat transfer tube with the rectangular staggered fins can be used for heat and mass exchange equipment in gas-solid sublimation process and gas-liquid condensation process. The invention has simple structure and low manufacturing cost, can improve local turbulence, and can remarkably reinforce gas lateral heat exchange and phase-change heat transfer and mass transfer processes.

The invention discloses a preparation method for organic monomolecular layer to protect nano copper compound, which comprises: mixing water solution of surface activator of common nantokite and cationicy ammonium salt with sulfide-containing benzene liquid, reducing with NaBH4 solution to form by one step the object product with 2-10nm size and even distribution and well dispersibility in nonpolar solvent. This method is simple, and has high yield with high efficiency.

The invention belongs to the technical field of preparation of novel nanometer functional materials, and particularly relates to a preparation method of surface-modified oil-soluble graphene oxide. The preparation method comprises the following steps: uniformly mixing graphene oxide, a modifier and at least two dehydrating agents in an organic solvent, and preforming a reaction on an obtained mixed solution at 10-60 DEG C for 12-48 hours to obtain the oil-soluble graphene oxide, wherein the modifier is an organic amine compound, and the organic amine compound comprises C6-C20 alkyl. Accordingto the preparation method, a technology and equipment are simple, a raw material is easy to obtain, a reaction condition is mild, operation and posttreatment processes are simple, and the yield is high; the preparation method is suitable for large-scale industrial production.

The invention relates to a method for preparing nano-copper. The method comprises the following steps of: dispersing a copper precursor into the liquid paraffin serving as a solvent and a reducing agent; adding a surfactant into the liquid paraffin with stirring; performing heat treatment for 2 to 4 hours in an atmosphere of N2 protective gas or no protective gas; standing; centrifuging to obtaina product; and alternately washing the product by using petroleum ether, distilled water or absolute ethyl alcohol to obtain the nano-copper. The nano-copper powder prepared by using the method has the advantages of particle sizes of less than 50 nm, uniform distribution, difficult oxidation, high dispersibility in polar solvents or non-polar solvents, cheap raw materials, low energy consumption,simple process equipment and easy large-scale production.

The invention discloses a method for preparing a carbon fiber containing polybenzimidazole compound material. The method comprises the following steps that: polybenzimidazole is polymerized in situ onthe surface of the carbon oxide fiber to form carbon fiber containing polybenzimidazole; and the carbon fiber containing polybenzimidazole undergoes hot pressed sintering in a vacuum hot pressed sintering furnace for one-time formation to form the carbon fiber containing polybenzimidazole compound material. The method has the advantages of overcoming defects of uneven distribution of carbon fiberfilling materials and poor shearing stress between the polybenzimidazole and the carbon fiber filling materials, along with simple and convenient operation, simple equipment and process and the suitability for mass production. The compound material prepared by the method has good mechanical property and wide industrial values and application prospect.

Disclosed is color-variable environment-friendly paint. The color-variable environment-friendly paint is prepared by, by weight, 30-40 parts of organic silicon resin, 40-50 parts of bismuth vanadate, 10-15 parts of hybi, 20-30 parts of poval, 10-20 parts of Sl203, 20-30 parts of talcum powder, 8-15 parts of mica powder, 6-10 parts of organic silicon coupling agent, 20-30 parts of xylene, 2-4 parts of dispersant, 1-3 parts of anti-settling agent and 3-5 parts of defoamer. The color-variable environment-friendly paint is excellent in reaction time within a range of 50-70 DEG C, low in color changing temperature, short in restoring time and reversible in color changing effect. The color-variable environment-friendly paint is smooth in coating, high in hardness, large in adhesive force, excellent in water resistance, less prone to aging, convenient in operation and simple in process, and has relatively-wide industrial application range.

A method shortened form glycol desulfurizing method for desulfurizing Sox (x=2 and / or 3) in the gas using a solution of which the main constituent is glycol which is glycol solution for short. The main constituent of glycol solution in the invention is glycol. The method of glycol desulfurization in the invention, firstly, absorbs SOx (containing: SO2 and / or SO3) in the gas using glycol solution,and then the glycol solution after absorbing Sox is generated by one or several methods in heating method, vacuum method, ultrasonic method, microwave method and radiation method. SO2 and SO3 byproduct is exhausted out, and the glycol solution after regenerated is cyclic utilized.

A process for preparing the organic single molecular layer protected Ni nanoparticle includes such steps as mixing the alcohol solution of Ni salt with the alcohol solution of S-contained compound and chemical reducing by hydrazine hydrate.

The invention belongs to the technical field of nanometer materials preparation with a novel function, and especially relates to a method for preparing surface modification oil solubility nanometer copper. The method comprises the following steps: taking copper alloy as raw material; adding organic solvent with modifier, adding acid or alkaline solution which can react with the alloy metal, fullyreacting for 6-24h under the temperature of 0-100 DEG C, separating and purifying to obtain the surface modification oil solubility nanometer copper. The preparation method in the invention has simple process and equipment, easily obtained raw materials in cheap price, low cost, high yield and the like, which is applicable to large-scale industrial production.

The invention discloses a method for preparing a carbon fiber containing polybenzimidazole compound material. The method comprises the following steps that: polybenzimidazole is polymerized in situ on the surface of the carbon oxide fiber to form carbon fiber containing polybenzimidazole; and the carbon fiber containing polybenzimidazole undergoes hot pressed sintering in a vacuum hot pressed sintering furnace for one-time formation to form the carbon fiber containing polybenzimidazole compound material. The method has the advantages of overcoming defects of uneven distribution of carbon fiber filling materials and poor shearing stress between the polybenzimidazole and the carbon fiber filling materials, along with simple and convenient operation, simple equipment and process and the suitability for mass production. The compound material prepared by the method has good mechanical property and wide industrial values and application prospect.

The invention provides a heat transfer tube with rectangular staggered fins and application thereof. The inventive heat transfer tube comprises a tube body and a plurality of rectangular staggered fins fixed on the tube body. The outer edge of the lee side of rectangular staggered fin is flat, and the other three outer edges are staggered in cross section along thickness direction and respectively provided with 5-8 sphenoid narrow grooves. The inventive heat transfer tube with the rectangular staggered fins can be used for heat and mass exchange equipment in gas-solid sublimation process and gas-liquid condensation process. The invention has simple structure and low manufacturing cost, can improve local turbulence, and can remarkably reinforce gas lateral heat exchange and phase-change heat transfer and mass transfer processes.

The invention relates to a preparation method of a graphite-bi-selenylation niobium nanocomposite. The preparation method enables niobium powder, selenium powder and graphite powder to serve as raw materials, conducts solid-phase reaction at certain temperature conditions and synthetizes sheet-shaped particles formed by a graphite-selenylation niobium nanocomposite. The preparation method is simple in process, high in productivity, environmental friendly, free of pollution and capable of achieving large-scale industrial preparation. Simultaneously, nano materials are small in size and have good physical chemistry effects so that the nano materials can serve as an excellent annexing agent of an electric contact material.

The invention relates to a method for preparing composite hydrophobic nano powder-coated liquid marbles, which belongs to the technical field of coating materials. The invention uses nano-zinc oxide powder, nano-titanium dioxide powder and nano-alumina powder as raw materials to prepare a composite hydrophobic nano-powder that wraps liquid, and can effectively reduce the liquid in the marble by wrapping the hydrophobic nano-zinc oxide powder. The risk of harmful bacterial contamination, thereby improving the safety of liquid marbles, nano-titanium dioxide has a strong UV shielding effect, and is effective against Bacillus subtilis var. niger, Pseudomonas aeruginosa, E. The extinction rate reaches 98~99%, which can effectively improve the medical use and safety of liquid marbles. Nano-alumina is in the state of white fluffy powder, which has the advantages of large specific surface area, high porosity, strong adsorption and good formability. It can effectively adsorb on the surface of the liquid, and effectively adsorb and bond other particles on the surface of the liquid, thus forming a stable liquid marble.

The invention discloses a method for synthesizing copper nanoparticles, which comprises the following steps of: using a half solid phase synthesis method to mix a cupric salt, a reducing agent, a stabilizing agent and water to obtain a uniform mixture; and using a microwave heating method to quickly synthesize the copper nanoparticles. The water or other polar organic molecules can quickly absorbmicrowaves to quickly increase the temperature of a reaction system so as to promote reduction of copper ions, and due to half solid phase and large viscosity and poor flowability of the reaction system, the high molecular polymer stabilizing agent can effectively contact and cover the copper nanoparticles to control growth of the nanoparticles so as to obtain smaller copper nanoparticles. The method has the characteristics of low cost, quickness, simpleness, convenience, no large amounts of solvents, and the like, and is suitable for large scale industrial production; and the prepared coppernanoparticles are 1-100nm in particle size and can be used for preparing a conductive paste along with wide industrial application.

The invention relates to a method for inducing aspergillus niger to generate EGCG (epigallocatechin-3-gallate) esterase with EGCG, comprising the steps that: (1) an aspergillus niger seed culture medium is cultivated for 36 hours at 25-30 DEG C and 100-250r / min; (2) the aspergillus niger seed culture medium with a inoculated dose of 4-10 percent is transferred to a fermented culture medium that contains the EGCG and cultivated for 72 hours at 25-30 DEG C and 100-250r / min, and filtered and centrifugated to get enzyme liquid; then the enzyme is used for hydrolyzing the EGCG so as to transfer the EGCG into EGC (epigallocatechin) and ellagic acid, comprising: (1) an EGCG enzyme hydrolysis reaction system, an enzyme liquid blank system and a substrate blank system are constructed; (2) the reaction system and the blank systems are reacted for 0-48 hours at 25-60 DEG C or until the hydrolysis reaction is almost over; (3) high performance liquid and thin layer chromatography are used for analyzing the substrate and the products. The invention has high EGC transfer ratio and yield and the products are stable and easy to be separated, besides, the invention has the advantages of safety, environment protective, simple operation and strong controllability, thereby being applicable to mass scale production.

The invention discloses a process for preparing industrial oil and relates to the technical field of industrial oil preparation. The method includes the steps of preparing of dehydrated mineral oil, preparing of mixed material liquid A, filtering and obtainment of finished products. The method for preparing industrial oil is easy and convenient to implement, the produced products are good in quality, the production cost is saved, it is avoided that titanium dioxide is wasted as industrial waste residues, more importantly, raw materials are reused, so that the pollution to the environment is avoided, good social benefits are achieved three-waste treatment, and meanwhile, certain economic benefits are achieved; the utilization rate of industrial oil is increased greatly, the energy saving and environment protection requirements of the industrial field in China are met, the requirement for resource saving is met, raw materials are wide in source, and the method is wide in industrial use range, great in future development and good in development prospect.