1180results about How to "Improve product added value" patented technology

The invention relates a nylon 6 polymerization method and a direct spinning method of a melt of a polymer obtained with the nylon 6 polymerization method. A polyamide 6 prepolymer is prepared at the low temperature, the content of oligomers in the melt is controlled in advance, polymerization is completed before a large quantity of cyclic oligomers are generated with a condensation polymerization dynamic strengthening method, a nylon 6 polymer melt with certain molecular weight is acquired, the content of extracts in the product is smaller than or equal to 1.5 wt%, and the content of cyclic dipolymers is smaller than or equal to 0.2wt%; then, direct melt spinning forming is performed after condensation polymerization dynamic strengthening ends. The process is simple, energy consumption is further reduced while the utilization rate of caprolactam is increased, the obtained melt can be directly used for melt spinning, high-capacity large-scale production is easy to realize, a modifier can be added in the polymerization process, flexible production of nylon 6 is realized, and the nylon 6 can be applied to fibers for clothes, industrial filaments, engineering plastics and other fields.

The invention relates to a method for recycling copper, nickel, chromium, zinc and iron from plating sludge, belonging to the technical field of chemical engineering and metallurgy. The method comprises the following steps: acid leaching, vulcanizing for separation and enrichment, hot-pressure leaching, extracting for separation, hot-press oxidizing chromium, purifying chromium solution, extracting ferric chloride and the like. The method has obvious advantages of strong adaptability to different kinds of plating sludge, high utilization of metal resources, high value-added content of product,less process waste residue, thorough deintoxication and the like.

The invention belongs to the technical field of new environment-friendly materials, and particularly relates to a ceramal material for manufacturing hydrogen-enriched water and the preparing method and application thereof. The ceramal material is prepared from, by weight, 30-85 parts of base material component, 20-60 parts of hydrogen-enriched component, 2-25 parts of anti-microbial component, and 3-30 parts of binder. The base material component is prepared from tourmaline, serpeggiante, silicon oxide, calcium oxide and zeolite. The hydrogen-enriched component is prepared from magnesium metal powder, magnesia powder and KDF alloy powder. The anti-microbial component is prepared from zinc oxide, titanium oxide and cerium oxide. The binder is prepared from one or more of high-purity distilled water, carboxypropyl cellulose and bentonite. The ceramal material can be used for manufacturing alkalescent water, negative-potential water and hydrogen-enriched water and also has an anti-microbial function and a water activating function. The invention further provides the preparing method and application of the ceramal material. The technology is simple and easy to realize. The ceramal material can be applied to products including water purifiers, water purifying kettles and cups.

The invention relates to a Chinese wolfberry ferment preparation method, aims to provide Chinese wolfberry ferment prepared by Chinese wolfberry treatment, enzymolysis, glucose reduction fermentation, lactic acid fermentation, ultrasonic low temperature concentration, blending, drying, crushing and other processes, , the method has the advantages of simple process, less addition agent and no residue, by the use of Chinese wolfberry defective products, the active substance content in the Chinese wolfberry ferment product can be promoted, the waste of resources can be reduced, the purposes of the comprehensive utilization of resources and improvement of the product added value can be achieved, and good economic and environmental benefits are obtained.

An integrated ammonia-process desulfurization method of various acidic gases in an oil refining device includes the following steps: (1) preparing heavy oil, light oil, acidic liquid and solvents through an atmospheric and vacuum distillation unit from crude oil, and feeding the heavy oil into a catalytic cracking device, the light oil into a hydrogenation device, and the acidic liquid and the solvents into a sulfur recovery combined device; (2) mixing a part of FCC oil, which is produced through the catalytic cracking device, with the light oil and feeding the mixed oil into the hydrogenation device to produce hydrogenated oil, the acidic liquid and solvents, wherein a part of the hydrogenated oil is fed into an adsorption device while the other part of the hydrogenated oil is stored and marketed as product oil; (3) feeding the acidic liquid and solvents and the acidic liquid and solvents prepared from the atmospheric and vacuum distillation unit into the sulfur recovery combined device to produce sulfur, and feeding the tail gas into an incineration unit for incineration to obtain incinerated flue gas; (4) feeding a part of the FCC oil which is produced in the catalytic cracking device into the adsorption device, performing adsorption desulfurization, and feeding an adsorption catalyst into a regenerative device to regenerate the adsorption catalyst in an oxidizing manner to obtain regenerated flue gas; and (5) feeding the FCC flue gas, the incinerated flue gas and the regenerated flue gas into an ammonia absorption device to perform absorption desulfurization and discharging cleaned flue gas after the flue gas meets standard.

The invention provides a device and a method for treating refractory iron ore, which have high iron resource recovery rate and are capable of directly reducing the refractory iron ore. The device for treating the refractory iron ore provided by the invention comprises a regenerative rotary hearth furnace, wherein the regenerative rotary hearth furnace comprises a furnace chamber enclosed by an annular inner wall, an annular outer wall and a furnace bottom; the furnace bottom can rotate; the furnace chamber is divided into a feeding area, a pre-heating area, a heating area, a high-temperature area, a control area and a discharge area; and a feeding hole is arranged on the annular outer wall of the feeding area, and a discharge hole is arranged on the annular outer wall of the discharge area. According to the device and the method for treating the refractory iron ore provided by the invention, the rotary hearth furnace adopts a regenerative combustion technology, and therefore, the time of pellets in the pre-heating area of the rotary hearth furnace is shortened, the time of the pellets in a reducing area is indirectly increased and metallization ratio of directly reduced iron is improved.

A method for extracting metal from bismuth-contained multi-metal material is carried out by leaching out copper and tellurium from bismuth-contained multi-metal by sulfuric acid, adding into chlorinating agent and oxidant to leach out metal bismuth, extracting silver from leaching-out slag with AgCl, PbSO4 and PbC12, adding ammonia water into leaching-out liquid, adjusting pH value to 1.5 to obtain bismuth oxychloride slag with 70% bismuth content, smelting into coarse bismuth by firing method or machining to obtain high-purity bismuth sesquioxide, adjusting pH value to 4.5 by Na2CO3, depositing tellurium to obtain tellurium dioxide and copper-contained solution, and electrically depositing to obtain copper powder with copper-contained content90%. It adopts wetting and firing metallurgical technology, has higher metal recovery rate and excellent leaching-out separation effect and effluent circulating utilization and no environmental pollution.

The invention relates to a manufacturing process of a ceramic accessory tile and the ceramic accessory tile. The manufacturing process comprises the steps of: (1) printing a ground coat on the surface glass layer of sintered ceramic tile; (2) conducting ink-jet printing on the printing ground coat to form patterns; (3) applying transparent dry grains on the surface of the pattern layer for two times, and sintering; (4) electroplating metal color on a groove of the surface glass layer by adopting a lamination positioning electroplating method, and sintering; (5) polishing the surface of the sintered product; and (6) cutting the sintered accessory tile blank to prepare the accessory tile. The ceramic accessory tile comprises a base tile, ground coat applied on the surface of the base tile, the pattern layer attached on the ground coat, and the first dry grain layer and the second dry grain layer applied on the pattern layer. Irregular pits, grooves or concave curves, wherein the irregular pits, the grooves or the concave curves are hollowed towards the inside and are arranged on the layer surface of the second dry grain distribution layer. The accessory tile varieties include ground flowers, ground line, waist line and corner, and is used for supporting the ceramic wall and floor tiles.

The present invention relates to oat deeply processing technology, and is especially technological process of producing oat dietary fiber and nutritious powder with oat bran. The technological process includes microwave enzyme deactivation of oat bran, enzymolysis, centrifugal separation, drying the precipitate and superfine crushing to obtain oat dietary fiber powder, vacuum concentrating the separated supernatant and spray drying to obtain nutritious powder. The present invention extracts the nutritious matters from oat bran effectively, the product has high purity and the production process is environment friendly.

The invention relates to a biological detergent composition. The biological detergent composition is prepared from a biological surfactant, a plant surface active agent, a biological enzyme and at least one washing auxiliary material. In the biological detergent, the biological surfactant is compounded with the plant surface active agent, the biological enzyme and other adjuvant agents. The detergent is reasonable in formula, the total content of active matters is high, and through complex synergism, the washing effect can fully meet the needs of people.

The invention belongs to recovery treatment on lead plaster of a waste lead-acid storage battery. The method comprises the following steps of: mixing the lead plaster of the waste lead-acid storage battery with waste sulfuric acid in the waste lead-acid storage battery according to the design requirement and roasting; adding roasting sand in a stirring kettle; adding tap water to a water level line of the device and stirring the roasting sand; adding a proper amount of calcium acetate, acetic acid and nitric acid; starting a solution circulating system pump, leaching out the roasting sand and maintaining the concentration of lead acetate to be saturated; adding a proper amount of bone glue and beta-naphthol, electrolyzing immersion liquid, recovering the metallic lead at the cathode and recovering lead dioxide at the anode; press filtering residues to obtain lead-off slag and filtrate; and adding calcium carbonate in the filtrate and recycling. The device mainly comprises a leaching part, a press filtration part, a circulating part and an electrolysis part, and concretely includes eight key components of the stirring kettle, a press filter, an overflow port, an electrolysis direct current power supply, an electrolytic cell, a cathode titanium basket, a corrosion resistant pump and a heating element.

The invention discloses a livestock and poultry feces organic fertilizer fermentation compound functional package, which comprises a compound functional package A and/or a compound functional packageB. The compound functional package A comprises a compound microbial agent, a compound enzyme preparation, humic acid, white spirit vinasse powder and zeolite powder; the compound functional package Bcomprises isomaltooligosaccharide, molasses meal, monopotassium phosphate, magnesium sulfate, ferrous bisglycinate, manganese bisglycinate, bamboo vinegar powder and citric acid. The package A and thepackage B are combined, the fermentation speed can be greatly increased, quick heating deodorization and thorough decomposition can also be achieved in the low-temperature season, diseases and insect pests and antibiotic residues can be effectively removed, the quality is stable, the quality guarantee period is long, and practicability is high. The invention further discloses a preparation method and application of the compound functional package, the compound functional package is used for livestock and poultry feces organic fertilizer fermentation, the harmless treatment efficiency is high, resource utilization is high, an obtained organic fertilizer product is high in functionality and comprehensive in nutrition, and has no toxicity, stink, harm and pollution, and the organic fertilizer use standard requirement is met.

The invention discloses a method for recovering nickel and molybdenum from a waste nickel-molybdenum catalyst. The method comprises the concrete steps of firstly carrying out primary low-temperature roasting, then carrying out secondary high-temperature alkali roasting, and transforming molybdenum and aluminum components in the waste catalyst into water-soluble sodium molybdate and sodium metaaluminate; then carrying out water leaching and solid-liquid separation to obtain a nickel slag and an alkaline filter liquor containing molybdenum and aluminum; carrying out acid leaching, evaporative crystallization and solid-liquid separation on the nickel slag to obtain a nickel sulfate product; and adding a barium salt precipitant into the filter liquor to separate the aluminum and the molybdenum, obtaining a refined aluminum-containing solution, adopting a chemical precipitation method to obtain an aluminum hydroxide precipitate, and calcining to obtain an aluminum oxide product. According to the method for recovering the nickel and the molybdenum from the waste nickel-molybdenum catalyst provided by the invention, valuable metals in the catalyst is comprehensively recycled, three products such as nickel sulfate, barium molybdate and aluminum oxide are obtained, the valuable metal recovery rate is high, the product added value is high, and the method has a certain application value.

The invention discloses a waste Ni-Co-Mn lithium manganate positive electrode material recycling method. The waste Ni-Co-Mn lithium manganate positive electrode material recycling method comprises dismantling waste Ni-Co-Mn lithium manganate batteries, crushing positive electrode sheets, sieving and reducing crushed materials through hydrogen in a reducing furnace; washing reduced materials in hotpurified water to obtain washing solution and washed residues, inletting carbon dioxide into the washing solution to obtain lithium hydrogen carbonate solution and aluminum hydroxide precipitates, calcining the aluminum hydroxide precipitates to obtain ultrafine aluminum oxide, and pyrolyzing the lithium hydrogen carbonate solution to obtain battery-level lithium carbonate; adding the washed residues into hydrazine hydrate solution, then adding and stirring in sodium hydroxide for reaction, filtering the mixture to obtain a second filter liquor and second filtered residues, vacuum-drying thesecond filtered residues inside a vacuum drying oven, screening and magnetically-separating dried materials to obtain Ni-Co-Mn ternary alloy powder, or directly dissolving the dried materials in acidto obtain Ni-Co-Mn ternary mixed solution. The waste Ni-Co-Mn lithium manganate positive electrode material recycling method is low in cost, capable of achieving separation and recycling of all components, and high in recycling rate and value added of products.

The invention provides an intermodulation distortion testing method of a high-power device. The intermodulation distortion testing method of the high-power device comprises the steps that (1) a testing device, a first power amplifier, a second power amplifier and a network analyzer are connected with a tested part, (2) passive intermodulation or active intermodulation of the tested part is tested, (3) the network analyzer displays the intermodulation testing result, when passive intermodulation is carried out, a transmission PIM test result and an emission PIM test result are displayed at the same time, and when active intermodulation is carried out, the dual-tone signal power and the IM power of a tested amplifier are displayed at the same time. According to the scheme, a system formed by a device can be used for measuring the passive intermodulation characteristics of passive microwave device components, antennas and antenna feeder systems, and the active intermodulation characteristics of high-power amplifiers, and complete intermodulation distortion testing is provided for a communication system.

The invention relates to a preparation method and use of an aqueous polymer/isocyanate adhesive, which belong to the technical field of chemical adhesives. In the invention, recycled polyethylene terephthalate (PET), diethanol amine, caprolactam and aqueous solution of glacial acetic acid are used to prepare a PET water-based polymer; toluene diisocynate and castor oil are used to prepare an isocyanate-terminated polyurethane prepolymer; and when used, PET aqueous polymer emulsion and the isocyanate-terminated polyurethane prepolymer are mixed at room temperature to obtain the aqueous polymer/isocyanate adhesive. The aqueous polymer/isocyanate adhesive is used for adhering wood.

The present invention discloses a preparing technics for lactobacillus ferment cushaw as well as its product. With cushaw as main material, to composite lactobacillus ferment agent through manpower inoculation, then to perment under the condition of non-oxygen, middle temperature and slow speed, after perment to prepare lactobacillus perment cushaw dried meat, cushaw catsup and cushaw drink three products. The perment product keeps the connatural nutrition components of cushaw, has the special nutrition and flavor of lactobacillus perment cushaw, sourness is gentleness, aroma is purity, without any essence, pigment and antiseptic, is a new type savageness cushaw perment product. The present invention provides a new technics for using cushaw, and adds a new variety for lactobacillus perment product and is convenient to produce with industrialization.

The invention provides a preparation method of spun-laced regenerated leather for an automotive interior surface. The preparation method comprises the following specific steps: (1) loosening and mixing fibers; (2) forming a net; (3) spreading the net; (4) pre-wetting; (5) spun-lacing; (6) drying; (7) carrying out vacuum plastic-absorption and molding. The requirements on material molding properties and mechanical properties by the automotive interior surface and industrial standards are sufficiently considered at the beginning of designing, and raw material ratios and a production process are reasonably optimized, so that collaboration of design, preparation and molding machining of a composite material is realized. Compared with traditional automotive interior surfaces including polyvinyl chloride, polyurethane and the like, the prepared automotive interior surface has the advantages of greenness and environmental friendliness, no odor, excellent elasticity, moderate strength, comfortable hand feeling, high cost performance and the like and is suitable for large-scale industrial production.

The invention discloses a method for directly recovering and producing electro deposited cobalt from waste lithium ion cells. The method is mainly characterized in that: firstly, the waste lithium ion cells are disassembled and separated to obtain positive plates; secondly, the positive plates are immersed by an organic solvent N-methylformamide (NMP), and aluminum foils and anode materials of a current collector are separated; thirdly, the anode materials which contain lithium cobaltate are leached out by a hydrochloric acid and hydrogen peroxide system, and undissolved substances are filtered and separated; and fourthly, the electro deposited cobalt is obtained after electrodeposition of filtrate. By adoption of the method, the recovery rate of the cobalt in the waste lithium ion cells can be about 97.0 percent, and the purity of the electro deposited cobalt can be more than 99.8 percent.