36results about How to "High added value" patented technology

The invention relates to a method for utilizing iron containing metallurgical dust, which comprises that: steel-making sludge, metallurgical dust-removing powder and iron scale are mixed; the mixed raw materials are sent into a rotary kiln and dried, and the drying temperature is determined according to moisture content of the raw materials and controlled to be between 300 and 500 DEG C; the dried materials are cooled by a cooler, the cooled materials are added with 5 to 10 percent of caking agent by weight, and the material and the caking agent are fully stirred evenly by a wheel-rolling mixer; and finally, the mixture is pressed into cooled agglomerated pellet products by a twin-roller machine, the pressure of the twin-roller machine is more than or equal to 500 Kg/cm<2>, and the cooled agglomerated pellet products are prepared into finished products after separation by a vibration sieve. The method has the advantages of low production energy consumption, high product strength, low moisture content and good quality, and can realize full effective utilization of resources; and the finished products of cooled agglomerated pellets can be directly used as a cooling agent and a slag former in steel making, can improve smelting effect and achieve functions of cooling and slag forming, and can be also used for blast furnace process.

A processing method of sweet potato sheet jelly, comprising the following steps of cleaning raw material sweet potatoes by water, and then continuously conveying the sweet potatoes to a crusher for crushing into sweet potato slurry with the particle size smaller than 3mm, weighing the sweet potato slurry, sweet potato graham flour or/and sweet potato starch in a weight ratio of the sweet potato slurry, the sweet potato graham flour or/and the sweet potato starch, which is 1: 0-100, adding water, mixing uniformly to prepare mixed slurry, wherein the water is added so that the water content in the mixed slurry is 48-65% by weight percentage, sending the mixed slurry to a spiral extrusion molding machine for curing and molding to form the sheet jelly, conveying the sheet jelly by a continuous conveyer, automatically cutting the sheet jelly according to a fixed length, and packing through an automatic packing machine or a vacuum packing machine so as to prepare the sheet jelly product. The invention uses mechanical continuous production and has a simple processing technology. The prepared sweet potato sheet jelly product maintains the nutrient components in the sweet potatoes and the active components capable of improving human immunity, and is excellent green health food.

The invention relates to a method for preparing nano flyash zeolite. Flyash is used as a raw material in the method, and the method comprises the following steps of: firstly melting the flyash and sodium hydroxide at high temperature; mixing the molten flyash with concentrated seawater used as a solvent, stirring and aging to obtain silica-alumina gel; crystallizing the silica-alumina gel hydrothermally, and then washing with water to be neutral; and finally drying to obtain a powdery product. Based on the special aperture structure of zeolite, the synthesized zeolite can be applied to catalysis, adsorption, ion exchange and soil improvement. By using the flyash and the concentrated seawater which are both wastes, the method realizes the recycling of the flyash and the concentrated seawater and is a new environment-friendly production method which meets the requirement of sustainable development.

A recycling apparatus of waste sulfuric acid for recycling waste sulfuric acid in an industrially effective manner and for supplying the recycled sulfuric acid having a high added value can be provided. The recycling apparatus of waste sulfuric acid for collecting waste sulfuric acid generated at a source site A, transporting it by a carrier B, and recycling it for reuse at a user site C, the recycling apparatus of waste sulfuric acid including a receiving tank for receiving virgin sulfuric acid (a) and waste sulfuric acid (b) having a concentration different from that of the virgin sulfuric acid, and including (1) a mixer alone, (2) a mixer and a concentration monitor, or a mixer and a cooler in combination, or (3) a mixer, a concentration monitor, and a cooler in combination.

The present invention provides a light-emitting device whose volume is small and that has plural display screens, and a personal digital assistant that realizes higher added value by using the same. A light-emitting device of the present invention has a plurality of light-emitting elements in a pixel, and these light-emitting elements emit light in a different direction from each other and a pixel driving element is provided in one of the light-emitting elements. The light-emitting device can display in both front and back sides and independently display images on the both sides. Further, it can provide a higher aperture ratio, which is obtained by adding the aperture ratios of the both sides. Furthermore, it is also possible to see different images on the both sides of an electronic device using a display device of the present invention. Moreover, weight saving and thinning of electronic devices can be realized.

The invention discloses a method for preparing liquid fuel by step-by-step deoxidization of grease. The method comprises the following steps: (1) the grease is converted into fatty acid methyl ester by methyl esterification; (2) fatty acid methyl ester and hydrogen are converted into fatty alcohol under the action of a copper-based catalyst; (3) fatty alcohol is subjected to dehydration/isomerization under the action of a molecular sieve based catalyst, and olefins are prepared, wherein the content of isomerized olefins in olefins is higher than 86%, reaction temperature is 190-240 DEG C, absolute pressure of the reaction is 0.1-0.5 MPa, the volume space velocity of fatty alcohol is 0.2-3 h<-1>, and the molecular sieve based catalyst is one or more of ZSM-35, ZSM-5, ZSM-22, SAPO-31, SAPO-11, a Y molecular sieve, a beta molecular sieve and mordenite. The method for preparing the liquid fuel has the advantages that the catalysts are cheap and easily available, hydrogen consumption is reduced remarkably, glycerin yield is increased, and the like.

The present invention relates to preparation process and apparatus of synthetic zeolite with flyash as material and no waste alkali liquid exhaust. Except traditional zeolite synthesizing reaction tank and solid-liquid separating dewatering tank, the apparatus has one additional dissolving tank for the component and alkalinity regulation and circulating use of waste alkali liquid. The preparation process includes reaction between flyash and sodium carbonate in the reaction tank to convert into zeolite, solid-liquid separating in the solid-liquid separating dewatering tank to obtain solid phase zeolite product and waste alkali liquid, regulating the Si/Al ratio of waste alkali liquid in the dissolving tank and returning the used alkali liquid into the reaction tank for reuse. The present invention has saving of alkali and water and eliminates environmental pollution.

The invention discloses a preparation method of a fabric with a skin care effect. The preparation method comprises the steps that a certain quantity of submicron-grade SiOx particles with extremely high hydrophilicity are added into an aqueous polyurethane solution, and a layer of rugged coarse PU thin film (wherein bulges and exposed portions are the SiOx particles) is cast on the surfaces of fibers by a padding and steaming technology, thus greatly increasing the friction coefficient among milk protein fibers, and improving the cohesive force among the fibers; meanwhile, the SiOx particles are extremely high in water absorbency, so that the fibers are endowed with higher antistatic property; therefore the problems of stickiness, twisting, winding, bar breakage and the like which are easily caused in a bar mixing working procedure are solved, and the production efficiency is greatly improved.

A toothbrush which is compatible with various functional appeals of a toothbrush, has an appeal effect-exhibiting appearance, and is high in degree of design freedom. The toothbrush comprises a head unit (12) having a plurality of tuft holes (16) provided in its head surface (12a), wherein a brush bristle bundle (13) is folded into two and a wire (15) held between them is driven into the tuft hole (16), whereby the bristle bundle (13) is planted into the tuft hole (16). A bristle bundle group (20) constituted of at least three bristle bundles (13) is provided on the head surface (12a) of the head unit (12), and the direction of a wire (15) in each of bristle bundles (13) constituting the bristle bundle group (20) is set to a direction in which one enclosed area is sectioned by the extension line of each wire (15) or a direction in which an area held between the extension lines of wires is sectioned.

A fresh or fermentation food packaging film, a packaging material and a packaging container which use the film, are disclosed. The fresh or fermentation food packaging film whose average pore size is 0.01-2 μm and whose porosity is 10-80%, wherein the film is manufactured from pure crystalline polymer without addition of inorganic compounds or organic compounds for pore formation, so as to impart microporousness thereto by a dry stretching method which does not use an organic solvent and solvent. The packaging film which can pack fermentation food, such as Kimchi, etc., and fresh food, such as vegetables, etc., in which the packaging film can allow the food some operations, such as breathing and transpiration, etc., but restrain penetration of liquid, such as, water, etc., and can also effectively prevent leakage of smell, such that the food can be kept fresh, through a simple handling process.

The invention discloses a device and method for increasing the yield of low-carbon olefins, and belongs to the technical field of petroleum refining. According to the equipment, a first regenerator and a second regenerator which are connected in series are arranged, the first regenerator is connected with a catalytic cracking device, and the second regenerator is connected with an alkane dehydrogenation device, so that alkane dehydrogenation and catalytic cracking reaction are coupled, and the equipment is used for carrying out high-yield low-carbon olefin operation; the heat transfer problem of a fixed bed and a moving bed can be solved, continuous reaction regeneration is realized, the overall activity and the reaction efficiency of the alkane dehydrogenation catalyst are improved, the heat extraction cost and the heat supply cost are saved, and the process heat efficiency is remarkably improved; the alkane dehydrogenation reaction is maintained within the optimal reaction temperature by utilizing redundant heat of the catalytic cracking reaction, the reaction efficiency of alkane dehydrogenation is remarkably improved, in addition, alkane produced by the device can be recycled, the low-carbon olefin yield of the device is remarkably improved, meanwhile, hydrogen with the additional value higher than that of olefin is increased, and remarkable economic benefits are achieved.

A method for recycling and regenerating plastic through homogenization and chain extending is provided. Waste plastic is subjected to impurity removing with an alkali solution and impurity removing. Through adding polyoxyethylene and an ethylene-vinylacetate copolymer, and by utilizing the hydrophilic and hydrophilic properties of the added compounds, the waste plastic is homogenized. Furthermore, through a tackifying chain extender, continuous tackifying and chain extending under high pressure are performed to achieve further homogenization and chain extending of the waste plastic to obtain high-quality recycled regenerated plastic. During chain extending, nanometer layered inorganic particles are used so that strength of the regenerated plastic is improved from a nanometer level and the nanometer layered structure allows chain extending of the regenerated plastic to occur in a same microcosmic plane, thus guiding the generation direction of a chain extending direction. A product can obtain good chain extending effects. Through the method, quality of the waste plastic is improved. The method can be further popularized and applied in actual industrial production.

The invention relates to a preparation method of micro-alcoholysis functional regenerated polyamide 6. The preparation method comprises the following steps: adding a dihydric alcohol monomer into waste polyamide 6, and carrying out micro-alcoholysis reaction to generate an alcoholysis polyamide 6 chain segment; adding a functional binary acid monomer, and sequentially carrying out esterification, amidation and ester-amide exchange reaction to prepare functional regenerated polyamide 6, wherein the micro-alcoholysis reaction refers to generation of an alcoholysis polyamide 6 chain segment of which the number-average molecular weight is 7000-9000 g/mol and two ends are respectively a dihydric alcohol ester structure and an amino group; the relative viscosity of the prepared functional regenerated polyamide 6 is 2.4-3.6, the melting point is 190-250 DEG C, the number-average molecular weight is 18000-30000 g/mol, the molecular weight distribution is 2-4, the initial thermal decomposition temperature is 430-490 DEG C, the breaking strength is 40-60 MPa, and the elongation at break is 30-90%. According to the method, waste polyamide 6 plastic products and fiber products can be recycled and regenerated through a simple process, functional products with higher commodity additional values are polymerized, the price burden of regenerated products is made up, and the regenerated products have better popularization space.

This invention relates to a method for preparing zeolite by using sintered bottom sludge as the raw material. The method comprises: adding Al, Si, Cl or F-containing additives that can be solved in alkaline solution to sintered bottom sludge, and performing traditional hydrothermal method or two-step method to prepare zeolite. The traditional hydrothermal method comprises: adding NaOH or KOH solution into the raw material and the additive, heating in a reaction kettle, and reacting to prepare zeolite. The two-step method comprises: mixing the raw material and the additive with solid NaOH or KOH, melting in a furnace, transferring into a reaction kettle, adding water and heating to prepare zeolite. After adjusted with alkalinity and Si/Al ratio, the waste alkaline solution can be recycled as the alkali source in the traditional method to prepare zeolite. Sintering technique is an effective means to realize harmless treatment of bottom sludge that is pollutive to water bodies. This invention can realize efficient utilization of sintered bottom sludge, and can obtain zeolite with high added value.

The invention relates to a method of manufacturing boards with leather by-products and a board manufactured by adopting the method, especially a gypsum board and a texture board suitable for being used as building interior materials manufactured with natural leather by-products and boards manufactured by adopting the method. According to the method, the shaving scraps of natural leather by-products are beating through physical means and then are bonded by binding materials through chemical means. Therefore, the adhesion, forming performance, shape stability, strength, moisture content, flexural load and the like of fiber materials are improved. Then the material is dried and pressed to be molded into boards.

The invention discloses a preparation method and application of high-purity medium-temperature coal pitch based super active carbon. Medium-temperature coal pitch is used as a raw material, medium-temperature coal pitch grains are obtained through crushing/screening and are mixed with a hydrochloric acid solution, and heating stirring, filtration and drying are performed to obtain a pretreatment sample; then, the sample is mixed with a hydrofluoric acid solution, and heating stirring, filtration and drying are performed to obtain a low-ash-content medium-temperature coal pitch raw material; then, the medium-temperature coal pitch raw material is mixed with KOH grains, the two materials are fully mixed evenly by using deionized water, drying is performed, then the obtained mixture is put ina tubular carbonization furnace for high-temperature thermal treatment, natural cooling is performed to room temperature, and washing, acid pickling, filtration and drying are performed to obtain thesuper active carbon. The product has very high price advantages on the aspect of application of supercapacitor electrode materials and shows excellent electrochemical property. Efficient and high-added-value utilization of the medium-temperature coal pitch is achieved, and the adverse influence of impurities in supercapacitors on the specific capacity and cycling stability of electrodes is avoided.

The invention discloses a method for microwave high-temperature cracking of a circuit board and application of the method. The method comprises the following steps that the circuit board is in contactwith a porous composite material, a microwave field is applied to the circuit board and the porous composite material in a vacuum or inert atmosphere, an electric arc is generated by the porous composite material under microwaves and a high temperature is rapidly reached, an organic compound of the circuit board is cracked to obtain a combustible gas product mainly composed of carbon monoxide, and a metal and nonmetal mixed solid product, wherein the metal and nonmetal mixed solid product is loose in structure and easy to separate. According to the method, the electric arc generated in the microwaves is used for rapidly triggering high temperature, so that the waste circuit board is rapidly cracked, the process is efficient, gas products are high-added-value combustible gas, the recoveryefficiency of solid metal and nonmetal is high, and all components of the waste circuit board can be recycled.

The invention discloses a preparation method of a yellow brown soil derived porous carbon material. The preparation method comprises the following steps: by using yellow brown soil in Yangtze River Delta as the main component of a hard template, synthesizing yellow brown soil derived porous carbon by means of a mechanical ball milling path and a heat treatment technique under the assistance of carbonate, thereby showing a high-graphitization-degree graded porous structure; and rich specific surface area. The selected yellow brown soil not only has the characteristics of rich source, convenience in collection, environmental friendliness and the like, but also can improve the graphitization degree of the porous carbon, and embodies the advantages of recycling, high added value and industrialization; a mixed hard template obtained by the mechanical ball milling path can provide an effective place for constructing the hierarchical porous structure; the microstructure compounded by the two-dimensional carbon layer and the three-dimensional porous carbon skeleton can be adjusted by controlling the mass ratio of the yellow brown soil to the carbonate; and the low-cost carbonate is mainlyused as an activating agent and plays a positive role in the aspect of enhancing the carbon porosity.