21results about How to "Improve product added value" patented technology

The utility model belongs to the technical field of decoration material relates to a multilayer heterochromatic composite structure's floor, including the surface decorative layer, and the composite substrate layer and the back balance layer of downward in turn, be equipped with first glue layer and second glue layer between each layer of composite substrate layer, the composite substrate layer is by three layers and above -mentioned super -thin moisture -proof density board, PVC carbon crystal board and inorganic straw board base material layer group billet and is formed, the colour of each base material layer is red, black, xylophone colour, blue, green, yellow, brown etc. The utility model discloses the composite substrate layer structure is by the super -thin moisture -proof density board, PVC carbon crystal board, inorganic straw board of different colour combination and is formed, has strong stability, surface level, is not easy to crack deformation, and the characteristics such as suitable ground heating environment. The floor disclosed effectively combines the advantages of various substrates, and is superior to ordinary floor in size stability, heat and moisture resistance, fire resistance, corrosion resistance, etc. The cost is reduced, and the product added value is obviously improved.

The application relates to the technical field of textile recycling, in particular to a rewoven process method based on shredded fabric recycling, which comprises the following steps: S1: classifying and screening the shredded fabric, and selecting fabric segments with a length not less than 10 cm; S2: cutting and processing the fabric segments to form cloth strips with a width of 1 cm-1.5 cm; S3: adopting a cross-knot tying method to tie and connect the cloth strips to form continuous cloth strip wires; and S4: reserving free ends with a length of 3 cm-5 cm at each connecting knot and keeping the free ends outside the woven structure to form a feather-like or tassel-like three-dimensional decoration effect. In the application, the shredded fabric is efficiently recycled, resource waste is reduced, and the green environmental protection requirement is met; the cross-knot tying is firm and not easy to loosen, the continuity and structural strength of the wire are ensured; the free ends are reserved to form a unique three-dimensional decoration, and the design performance and product added value are improved.

The application discloses a method for recovering tin, gold and silver from high-gold-silver-tin-containing materials, and belongs to the technical field of non-ferrous metal smelting methods.The method adopts a hydrochloric acid-hydrogen peroxide system for leaching, so that tin, gold and silver enter a solution and are separated from insoluble residues; sulfur dioxide is introduced into the acid leaching solution to selectively reduce and precipitate sponge gold; after the gold is precipitated, silver chloride is precipitated by diluting the solution, and high-purity silver powder is obtained by dissolving the silver chloride in ammonia water and reducing the silver chloride by hydrazine hydrate, and the silver powder is cast into an ingot; the tin-containing solution can be recycled or neutralized to precipitate and recover tin.The method has a short process, realizes efficient separation of gold, silver and tin by selectively reducing gold by SO2 and precipitating silver by dilution, has high metal recovery rate (tin > 98.5%, gold > 99.5%, and silver > 99.5%), most of the solution is recycled, is environmentally friendly, has remarkable economic benefits, and the like.

The present application relates to the technical field of general solid waste harmless treatment, and particularly relates to a method for electrolytic manganese residue harmless treatment. The method for electrolytic manganese residue harmless treatment comprises the following steps: solidifying treatment of electrolytic manganese residue to be treated by using a solidifying agent; the solidifying agent comprises a first solidifying agent and / or a second solidifying agent; the first solidifying agent comprises the following components in parts by weight: 0.5-1.25 parts of sodium phosphate, 4-8 parts of quicklime, 3-12 parts of cement and 2-8 parts of fly ash; the second solidifying agent comprises the following components in parts by weight: 5-7 parts of calcium oxide, 1.5-2.5 parts of sodium hydroxide and 0.8-1.2 parts of sodium silicate. After the electrolytic manganese residue is treated by using the suitable solidifying agent, the electrolytic manganese residue can be harmlessly treated and recycled, and can be used for producing building material raw materials, and the method is simple in operation, high in product added value and low in cost.

The invention discloses a waste mineral oil multistage coupling heat exchange and gradient cooling energy-saving cooperative treatment method, which belongs to the technical field of heat energy engineering and energy conservation, and comprises the steps of pretreatment refining, fractionation cutting, molecular distillation, hydrofining, gradient cooling and intelligent control. By constructing a multi-stage coupling heat exchange network, hydrofining high-temperature waste heat is used for preheating fractionation feed, and fractionating tower top steam waste heat is used for preheating molecular distillation feed; cooling the high-temperature material flow according to the temperature by stages through a three-stage gradient cooling system, and recycling the low-temperature cold energy of the molecular distillation unit for a pretreatment process; and dynamically optimizing heat exchange and cooling operation based on an energy balance model through the central control system. According to the method, the technical problems of energy utilization splitting and serious waste heat waste in a waste mineral oil regeneration process are solved, the yield and the quality of a base oil product are greatly improved while the system energy consumption and the cooling water consumption are remarkably reduced, and an innovative solution is provided for efficient regeneration of the waste mineral oil.

The utility model relates to an ultra-pure polyolefin powder preparation device which comprises a crushing unit and a screening unit, and the crushing unit comprises a pulverizer provided with a grinding part; the screening unit comprises a cyclone separator, a vibrating screen and a magnetic filter arranged at the discharging end of the vibrating screen. A discharge port of the flour mill is communicated with a feed port of the cyclone separator through a feeding pipeline; and a material return port of the vibrating screen is communicated with the flour mill through a material return pipeline and is used for returning screen residues of the vibrating screen to the flour mill. According to the device, large-particle polyolefin materials are crushed, screened and demagnetized, and the utilization rate of the materials and the added value of products are improved.

This invention relates to the field of herbal material processing technology, and discloses a fermentation and processing technique and preparation method for medicinal and edible herbs. The invention comprises four core processes: traditional processing, pretreatment, two-stage fermentation, and extraction and purification. The processing step uses stir-frying and steaming to activate the effective components of the medicinal materials and eliminate toxicity. The pretreatment step involves pulverizing the raw materials to 20-40 mesh, sterilizing them at 115℃ for 20 minutes, and then cooling them for later use. The fermentation step involves inoculating food-grade compound microorganisms for a primary fermentation of 7 days; when the glycosidase activity is not less than 120 U / mL, a secondary synergistic fermentation is initiated for 3 days. On the 10th day of the final fermentation, the temperature is raised to 85-90℃ and held for 30 minutes to terminate the fermentation. The extraction and purification step involves ethanol reflux extraction, double filtration, defatting, macroporous resin elution, and spray drying to finally obtain a powdered product with a total active ingredient content of 90%. This invention effectively improves the conversion rate of rare active ingredients and the purity of the product, maximizing the utilization of the value of medicinal and edible materials.

The application discloses a preparation method of telluric acid, and comprises the following steps: mixing tellurium dioxide material with a sodium hydroxide solution to perform an alkali leaching reaction, to obtain a sodium tellurite solution; mixing the sodium tellurite solution with an oxidizing agent to perform an oxidation reaction, to obtain a sodium tellurite precipitate; mixing the sodium tellurite precipitate with concentrated nitric acid to perform an acidification reaction, to obtain a telluric acid precipitate; and placing the telluric acid precipitate in distilled water to perform recrystallization, filtering and drying, to obtain a telluric acid product. According to the method, the tellurium dioxide material is used as a raw material, a synergistic process of alkali leaching purification, directional oxidation, acidification conversion and refined purification is adopted, high-purity telluric acid can be efficiently prepared, the purification of tellurium and the preparation of telluric acid can be integrally completed, the traditional synthesis path of the telluric acid, i.e., 'purification first and then synthesis', is overturned, the method has the characteristics of low raw material cost, simple process, high product purity and high yield, and is suitable for large-scale industrial production.

The utility model discloses a kind of apparel tags of fabric embossed tpu, belong to apparel tag technical field, its technical scheme main points include the main body of label, the main body of label includes substrate layer, the top of substrate layer is provided with adhesive layer, the top of adhesive layer is provided with embossed layer, and the top of embossed layer is provided with pattern layer;Through the design of embossed layer, the unique texture effect is presented to the surface of the main body of label, and it is combined with the brand identification and product information display of pattern layer, greatly improve the aesthetic degree and artistic feeling of the main body of label, satisfy the demand of consumer to individualization and fashion, can effectively improve the overall image of brand and product added value;Through waterproof layer in protective layer, water penetration can be effectively prevented, protect the internal structure and pattern of the main body of label from water damage, while the air permeability guarantees the comfort of wearing, applicable to various different use scenarios, such as outdoor sports, humid environment etc.

The application provides a method for preparing graphene from graphite leaching residue of waste lithium ion batteries, comprising the following steps: obtaining graphite leaching residue by acid leaching of black powder recovered from waste lithium ion batteries; dispersing the graphite leaching residue in an electrolyte, and sequentially performing first electrolysis and second electrolysis; the voltage of the first electrolysis is lower than that of the second electrolysis; taking the upper electrolyte, and performing centrifugal treatment to obtain upper suspension and filter residue; diluting the upper suspension, and performing hydrothermal reaction; and separating and drying the reaction product to obtain reduced graphene oxide. The method has the advantages of simple process, environmental friendliness, low cost, high product added value, high-value recovery of graphite leaching residue, preparation of high-quality reduced graphene oxide without additional addition of oxidizing agents, and excellent application prospect.

This invention discloses a reconstituted tobacco leaf with the appearance of tobacco fibers and its preparation method. The reconstituted tobacco leaf comprises the following components by weight: 20-40 parts tobacco stems, 30-50 parts added fibers, 40-50 parts tobacco powder, and 0.4-2 parts colloid. The preparation method involves precise weighing of raw materials, separate pulping of tobacco stems, mixed pulping of tobacco powder and added fibers, compounding of multiple pulps, followed by pulping, dehydration, coating, drying, and rolling to obtain the finished product. The reconstituted tobacco leaf exhibits a clear appearance of natural tobacco fibers on its surface. The raw material ratio is highly adaptable, and the parameters of each step of the preparation process are highly controllable. It effectively preserves the original appearance and structure of tobacco fibers, giving the product both excellent physical properties and sensory quality. Furthermore, the process flow is adapted to the needs of industrial production, significantly improving the added value and market application value of paper-based reconstituted tobacco leaves.

The application belongs to the field of waste graphite material recycling, and particularly relates to a waste graphite repair material, a preparation method, application and a lithium secondary battery, wherein the preparation method comprises the following steps: waste graphite is separated from waste lithium ion batteries; the waste graphite is pre-modified in a solution of a polyphenol monomer in a first modification process; the polyphenol monomer is an organic compound containing 2-15 phenolic hydroxyl groups and having a carbon number of 6-20; the positive active material in the waste lithium ion battery comprises at least one transition metal element selected from nickel, cobalt, manganese and iron; a primary amine monomer and a phosphorus-containing additive are added to the system of the first modification process to perform phenylamine copolymerization, and a graphite@phenylamine copolymer is prepared; the graphite@phenylamine copolymer is calcined at a temperature of 500-700 DEG C, and then subjected to acid treatment, washing and drying treatment to prepare the waste graphite repair material. The method can improve the rate, low-temperature and long-cycle performance of the waste graphite repair material.

This utility model relates to a coal-based apparatus for producing methyl methacrylate; it includes a raw coal bunker and an oxygen pipeline, which are respectively connected to the inlet of a gasification unit. The outlet of the gasification unit is connected to both a non-shifted gas scrubbing unit and a shifted gas scrubbing unit. The outlet of the non-shifted gas scrubbing unit is connected to a methanol synthesis unit, which is connected to a methanol-to-olefins unit, which is connected to a propionaldehyde synthesis unit, which is connected to a methacrolein synthesis unit, and finally, the methacrolein synthesis unit is connected to a methyl methacrylate synthesis unit. This apparatus achieves the goal of conforming to my country's energy structure and reducing dependence on foreign oil, while also extending the coal chemical industry chain to increase product added value and enhance the competitiveness of coal chemical enterprises.

The present application relates to the technical field of screw shell textile, and particularly relates to a shell silk for textile, a textile material and a preparation method, the shell silk for textile comprises: a shell layer; a protective layer covering a first surface of the shell layer; a bonding layer arranged on a second surface of the shell layer; and a reinforcing layer arranged on a side of the bonding layer away from the shell layer; wherein the shell layer is subjected to thinning treatment to form a flexible shell layer; the protective layer, the shell layer, the bonding layer and the reinforcing layer are sequentially stacked to form a composite structure, and the shell silk can meet the textile processing requirements such as weaving, knitting and embroidery through the synergistic cooperation of the protective layer, the shell layer, the bonding layer and the reinforcing layer, while the natural luster and decorative effect of the shell material are maintained, and the structural stability and processing adaptability of the shell silk are improved.

The utility model discloses a four-edge embossing device suitable for household paper, which comprises a main roller and at least two auxiliary rollers, a plurality of pattern salient points are uniformly distributed on the roller surface of the main roller, and a plurality of pattern salient points are uniformly distributed on the roller surface of the auxiliary rollers. The roller surface of the auxiliary roller is provided with at least two transverse protrusions arranged in the circumferential direction at a first rated interval and at least two vertical protrusions arranged in the axial direction at a second rated interval. Any auxiliary roller can abut against or be far away from the main roller in the radial direction, and the main roller abuts against one auxiliary roller to be matched with the auxiliary roller in a rotating and opposite-pressing mode. And at least one pattern salient point in an overlapped area between the transverse bulges and the vertical bulges of the main roller surface and the auxiliary roller surface is in periodic knurling fit with the transverse bulges and the vertical bulges of the auxiliary roller surface.

The invention provides a cover annealing furnace production method of an SPCC cold-rolled steel plate with a plastic strain ratio r90 value greater than or equal to 2.3, which comprises the following steps: controlling the chemical components of molten steel in percentage by weight: 0.03-0.05% of C, less than or equal to 0.06% of Si, 0.12-0.22% of Mn, less than or equal to 0.020% of P, less than or equal to 0.015% of S and 0.020-0.040% of Alt, and annealing a cold hard coil in a cover annealing furnace; firstly heating to 350 DEG C at a full speed, then heating from 350 DEG C to 710 DEG C at a controlled slow speed, and controlling the heating time at the section to be 500 minutes; and preserving heat according to the thickness of the steel plate after the temperature reaches 710 DEG C, and then cooling and discharging according to a conventional process. The deep drawing forming performance of the product is greatly improved.

The application provides a composition with a killing effect on golden apple snails and application thereof, and belongs to the technical field of pest control. Effective active ingredients of the composition include discarded tobacco leaf extract and orange peel essential oil. The composition is extracted from natural plants, has high efficiency and safety, can effectively achieve the prevention and control of harmful soft-bodied animals, i.e., golden apple snails, has a significant killing effect on the golden apple snails at a low concentration, and is verified by experiments to have no toxicity to 3-4 cm carp fry at an effective concentration, fully indicating that the composition is safe to non-target organisms and has low environmental risk.

The present application belongs to the technical field of anaerobic fermentation, and provides a method for producing bio-based chemicals based on microbial niche regulation of an anaerobic fermentation system. The method comprises the steps of straw crushing, carbon chain extension reaction, short acid production by hydrolysis acidification, biogas production by acid methanation, and discharging. The present application regulates the high-solid-content anaerobic fermentation system through microbial niche to achieve the purpose of directional synthesis of products, enhances the synergistic metabolism mechanism between acid-producing bacteria and methanogenic bacteria, improves the activity of different functional microbial communities, and for the first time realizes the co-production of medium-chain fatty acids, short-chain fatty acids and methane in a high-solid-content anaerobic fermentation system, further widens the energy utilization path of straw, and improves the added value of products.

This invention discloses a polyethylene composite fiber, its preparation method, and its applications. The polyethylene composite fiber comprises ultra-high molecular weight polyethylene fiber and bioceramics, and can be used in surgical suture and repair products. This surgical suture and repair product is mainly used for bone suture and repair, promoting bone growth and repair at the wound site, which is beneficial for bone healing. This surgical suture and repair product has high strength, is safe and reliable, has good biocompatibility, promotes bone wound healing, and is not easily adhered to bone tissue, making it easy to remove.

This invention discloses a preparation process for antimony glycolate with low heavy metal residues, belonging to the field of antimony glycolate production technology. The process first involves acid washing of industrial-grade antimony trioxide with dilute nitric acid and washing with high-purity water, followed by chelation resin adsorption purification of industrial-grade ethylene glycol. Subsequently, under an inert atmosphere, a stepwise feeding method is used for a controlled synthesis reaction. After the reaction, the reaction solution is pressurized at a specific high temperature and passed through a composite purification medium column composed of a specific volume ratio of thiol-based resin, molecular sieve, and diatomaceous earth for deep purification. Finally, the final product is obtained through programmed cooling crystallization, washing with mixed solvents, and vacuum drying. This invention, through a systematic purification design throughout the entire process, can reduce the content of key heavy metal impurities such as lead and arsenic in the product, significantly improving the purity of the product and its activity and stability as a polyester catalyst. Furthermore, the process exhibits good reproducibility and is suitable for industrial production.

The application provides a method for recovering manganese from zinc anode slime, and relates to the field of hydrometallurgy. The method for recovering manganese from zinc anode slime comprises the following steps: sequentially performing water washing and acid washing on zinc anode slime to obtain manganese-rich residue; mixing the manganese-rich residue with a sulfuric acid solution to prepare slurry; adding the slurry into a cathode area of an electrolytic cell to perform constant-current electrolysis; after the electrolysis is completed, performing solid-liquid separation on the slurry in the cathode area to obtain manganese-containing electrolyte and lead-silver residue; sequentially performing purification and impurity removal treatment, concentration, crystallization and drying treatment on the manganese-containing electrolyte to obtain manganese sulfate. The method adopts an electric reduction mode to reduce manganese in zinc electrolytic anode slime, and high-purity manganese sulfate products can be obtained, and the method has the advantages of good selectivity, high recovery rate, short process, high comprehensive resource utilization rate, good environmental protection performance, high product added value and the like.