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51results about How to "Compact process" patented technology

Bifunctional heterostructure catalyst, preparation method and application of bifunctional heterostructure catalyst in electrolyzed water

The invention belongs to the technical field of electrolyzed water catalysts, and discloses a bifunctional heterojunction catalyst, a preparation method and application of the bifunctional heterojunction catalyst in electrolyzed water, the catalyst is characterized in that NiMoO4 nanosheets which grow on a foamed nickel conductive substrate in situ and have a clear heterogeneous interface structure coat Co3O4 nanowires to form a Co3O4 nanowire-coated NiMoO4 nanosheet array which is recorded as NiMoO4-coated Co3O4 / NF catalyst, and the NiMoO4-coated Co3O4 / NF catalyst is used for preparing the catalyst. The overall appearance of the catalyst is in the shape of a porous and wrinkled paper embroidered ball, and the heterogeneous interface structure of the catalyst enables the catalyst to have excellent OER / HER bifunctional catalytic activity under the alkaline condition. Through cooperation of a heterogeneous interface and a three-dimensional porous structure, the efficient hydrogen evolution and oxygen evolution activity is achieved in the water electrolysis process; the assembled full-battery electrolyzed water system can be subjected to overall water decomposition under low voltage, the performance is almost not attenuated under long-time operation, conversion and utilization of resources and energy are achieved, and the application prospect is wide.
Owner:SHANGHAI UNIV

CO2 circulating injection ironmaking method and system of hydrogen-rich carbon circulating oxygen blast furnace

The invention discloses a CO2 circulating injection ironmaking method of a hydrogen-rich carbon circulating oxygen blast furnace, which comprises the following steps: heating CO2 separated and captured from top gas of the blast furnace to 2500 DEG C or above, and then circularly injecting into the blast furnace from a tuyere; and further purifying the residual CO and H2 in the top gas of the blast furnace to prepare a chemical product. The invention further discloses a CO2 circulating injection ironmaking system of the hydrogen-carbon-rich circulating oxygen blast furnace. The method solves the problems that the carbon emission reduction potential of a hydrogen-rich carbon circulating oxygen blast furnace process is not fully exerted, and CO2 separated and captured from top gas is not fully utilized.
Owner:BAOSHAN IRON & STEEL CO LTD

High-hardness wastewater chemical membrane coupling softening method and treatment device

The invention provides a high-hardness wastewater chemical membrane coupling softening method which comprises the following steps: firstly, carrying out chemical pretreatment on high-hardness wastewater to obtain softened wastewater, and carrying out flocculent precipitation on the softened wastewater to remove suspended solids and residual hardness ions in the softened wastewater to obtain flocculent precipitation wastewater; the method comprises the following steps: flocculating and precipitating wastewater, filtering the flocculated and precipitated wastewater to obtain filtered wastewater, carrying out membrane separation on the filtered wastewater to obtain separated wastewater, and carrying out evaporative crystallization on the separated wastewater to crystallize salt in the separated wastewater so as to soften the high-hardness wastewater. According to the method, through coupled use of chemical pretreatment and a membrane technology, the softening efficiency is improved, the use of chemical agents is reduced, and the treatment cost is reduced.
Owner:XINJIANG DELAND

Titanium and titanium alloy cutting tool coating and preparation method thereof

The invention discloses a titanium and titanium alloy cutting tool coating and a preparation method thereof, the titanium and titanium alloy cutting tool coating comprises a coating substrate and a double-layer coating deposited on the substrate, and the double-layer coating sequentially comprises a base layer and a functional layer from the substrate side to the surface side of the double-layer coating. The base layer is composed of a metal compound TiBx, and the functional layer is composed of a metal compound TaSiy. The titanium and titanium alloy cutting tool coating provided by the invention has relatively high wear resistance, high temperature resistance, oxidation resistance and bonding resistance, the bonding strength between the coating and a matrix is good, the production process is simple, the production cost is low, and the titanium alloy cutting efficiency can be effectively improved.
Owner:WUXI GUOHONG MEASURING & CUTTING TOOLS

Fly ash magnetic separation iron extraction system and method

The invention discloses a coal ash magnetic separation iron extraction system and method. Comprising a bin pump system and a magnetic separation system, wherein the bin pump system comprises a first bin pump system (2) and a second bin pump (12); the magnetic separation system comprises first-stage magnetic separation and second-stage magnetic separation, the surge bin (5) is of a branch bin chamber structure, the lower part of the surge bin (5) is an ash bucket bin, each ash bucket bin is connected with an air locking feeder (6) and a first-stage magnetic separator (7), and each first-stage magnetic separator (7) is connected with a spiral conveyor (8); an outlet of the spiral conveyor (8) is connected with the secondary magnetic separator (9); and an inlet of the surge bin (5) is connected with the three-way switching valve (4). The invention has the advantages of strong adaptability, compact process flow, small occupied area and the like, and effectively solves the pollution problem of fly ash.
Owner:SINOSTEEL TIANCHENG ENVIRONMENTAL PROTECTION SCI&TECH

A short process of grinding and flotation for processing fine molybdenite

The present application belongs to the field of non-ferrous metal dressing process, and relates to a grinding-flotation short process separation method for processing fine molybdenite. The process uses a high-pressure roller mill and a tower mill crushing and grinding process to replace the fine crushing and two-stage continuous ball milling operation in the traditional crushing and grinding process, and uses a flotation column to replace a flotation machine for flotation operation, thereby simplifying the production process flow of molybdenite. The present application has the advantages that the high-pressure roller mill and the tower mill change the crushing and grinding mode of the ore, significantly reduce the crushing and grinding energy consumption, and more effectively protect the flaky structure of molybdenite. The particle size distribution of the grinding product is reasonable, and the amount of fine and micro-fine particles (-20 μm) is reduced, thereby creating good conditions for the flotation operation. The flotation column is used for flotation, compared with the flotation machine, the recycling of middling slurry is reduced, the fine molybdenite that has been dissociated is fully recovered, and the recovery rate of molybdenite is improved. In addition, the flotation column flotation is beneficial to obtaining high-grade concentrate product, and improves the separation index and economic benefits of molybdenite.
Owner:SHENYANG SHENGSHI WUHUAN TECH CO LTD

Red mud full-amount recycling and harmless treatment method based on material internal circulation

The invention belongs to the technical field of industrial solid waste recycling and environmental protection, discloses a red mud total recycling and innocent treatment method based on material internal circulation, and solves the problem of high dependence degree on external materials in the current red mud treatment process. The method comprises the following steps: calcining red mud and then performing acid leaching; adding sodium carbonate while heating the pickle liquor to co-precipitate iron and aluminum in one step, and collecting CO2; washing the precipitate to obtain iron-aluminum concentrate and a sodium chloride solution; cO2 is introduced into a NaOH solution to prepare sodium carbonate; the sodium chloride solution is converted into NaHCO3 and NH4Cl through a Hou's alkali preparation method, and NaHCO3 is calcined to obtain Na2CO3 and CO2; regenerating NaOH from the Na2CO3 solution through a causticization method; and extracting silicon from acid leaching residues by using regenerated NaOH to produce white carbon black. The method disclosed by the invention fundamentally avoids the generation of high-salinity wastewater, synchronously and efficiently recovers iron, aluminum, silicon and sodium resources, and has remarkable economic and environmental benefits.
Owner:SHANDONG XINHUANQING TECHNOLOGY DEVELOPMENT CO LTD

A system and method for treating oil and gas field fracturing flowback

This invention belongs to the field of oil and gas field wastewater treatment technology, and discloses a treatment system and method for oil and gas field fracturing flowback fluid. The system comprises a de-gelling and flocculation system, a microbubble ozone system, a reverse osmosis interception system, and a bio-enhanced degradation system connected in sequence. The de-gelling and flocculation system receives the raw water to be treated and, through the synergistic effect of chemical de-gelling and physical swirling fields, separates and removes oily substances and suspended solids from the raw water, forming de-gelling permeate. The microbubble ozone system is used to deeply oxidize the de-gelling permeate, forming oxidation permeate. The reverse osmosis interception system is used to desalinate and deeply purify the oxidation permeate, forming reverse osmosis permeate. The bio-enhanced degradation system is used to degrade biodegradable pollutants in the reverse osmosis permeate to obtain system effluent. This invention achieves the comprehensive goal of a compact process and stable effluent that meets standards for reuse or discharge through a closed-loop treatment path of progressive pollutant reduction and differentiated purification.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1

Two-section type liquid capsule filling and sealing system and method

The invention belongs to the related field of two-section type liquid capsule filling and sealing technologies, and discloses a two-section type liquid capsule filling and sealing system which comprises a liquid filling unit and a sealing unit. The liquid filling unit comprises a filling main machine, a feeding module, a separating module, a smearing module, a liquid injection module, a capsule combining module and a capsule discharging module, wherein the feeding module, the separating module, the smearing module, the liquid injection module, the capsule combining module and the capsule discharging module are arranged on a working table face of the filling main machine. Capsules are sequentially transferred to the filling stations, and the liquid filling process is completed. The sealing unit comprises a sealing main machine, a feeding module, a laser welding module, a sealing discharging module and a discharging module, wherein the feeding module, the laser welding module, the sealing discharging module and the discharging module are arranged on a working table face of the sealing main machine. Capsules are sequentially transferred to the sealing stations, and the sealing process in an annular laser welding mode is completed. The invention further discloses a corresponding method. According to the invention, not only is the capsule sealing quality improved, but also the sequence transfer action of the capsule is reduced in the production transfer process, and finally, the qualified rate of liquid capsule finished products and the system efficiency are greatly improved.
Owner:WUHAN KAILAI PHARMACEUTICAL CO LTD

A method for strengthening leaching of zinc alloy slag based on iron cycle oxidation

The present application relates to a kind of zinc alloy slag intensification leaching method based on iron cycle oxidation, belong to hydrometallurgy and resource recycling technical field.It is applicable to handle zinc, germanium, indium, copper, iron and other multi-metal components zinc alloy slag material.The method is by inputting the reagent containing ferrous iron into sulfuric acid leaching system, and continuously supplementing oxidant, constructs and maintains the efficient oxidation-reduction cycle of Fe 2+ / Fe 3+ In solution, effectively promote the decomposition of insoluble phase and alloy structure and the oxidation and dissolution of metal element, solve the problem of low metal leaching rate of zinc alloy slag in traditional acid leaching process due to large interface mass transfer resistance, slow reaction kinetics.The present application can significantly intensify leaching process, realize the efficient leaching of zinc, germanium, copper and other multi-metals, and the process is simple, mild condition, provide an effective way for the resource recycling of complex zinc alloy slag.
Owner:YUNNAN CHIHONG RESOURCE COMPREHENSIVE UTILIZATION CO LTD

Control method for handstand lathe spindle workpiece exchange

The invention discloses a control method for handstand lathe spindle workpiece exchange, and belongs to the technical field of control and use of electromechanical matching of numerical control machine tools. A main shaft is driven by double servo motors mechanically, and a workpiece to be machined needs to be exchanged to an OP20 after machining is completed through an OP10. In order to ensure the repeated positioning precision, servo main shaft control is adopted electrically, self-defined storage parameters, monitoring state data resources and recognition of coordinate axis and PLC signal states are utilized electrically, and movement of hardware such as main shaft coordinate axes and the like is carried out according to corresponding control instructions and machining process execution steps by judging the data. The method has the advantages that according to the combination of the strategy and the built-in instructions of the system, the axis coordinate data, the application system functions and the related parameters are found by combining the mechanical design and the machining technology, the NC program can monitor and judge the data, and the functional requirements of different numerical control systems can be safely and reliably met.
Owner:BEIJING BEIYI FERRARI MACHINE TOOL CO LTD

Heat treatment method for synchronously improving strength and plasticity and surface ceramic layer performance of zirconium-niobium alloy formed by melting of laser powder bed

The invention belongs to the technical field of zirconium-niobium alloys, and discloses a heat treatment method for synchronously improving the strength and plasticity of a zirconium-niobium alloy formed by melting a laser powder bed and the performance of a surface ceramic layer. The method comprises the following steps: putting the zirconium-niobium alloy formed by melting in a laser powder bed into a heat treatment furnace, and keeping the temperature of 650-750 DEG C for 10-30 minutes in an atmospheric environment; cooling to 550 to 650 DEG C, and keeping the temperature for 20 to 60 minutes; continuously cooling to 400 DEG C to 500 DEG C, and keeping the temperature for 20 to 60 minutes; and circulating and repeating, and cooling to room temperature along with the furnace. According to the method, strengthening and toughening of the alloy matrix and preparation of the surface high-performance ceramic layer are synchronously achieved, the microhardness of the treated alloy surface is greatly improved, a thick compact oxide layer is formed, the tensile strength loss is reduced to the minimum, the percentage elongation after fracture is greatly improved, and the service life of the alloy is prolonged. The problem that the'strong plasticity 'and the'wear resistance' of the zirconium-niobium alloy in the traditional process are difficult to synergistically improve is solved.
Owner:SOUTH CHINA UNIV OF TECH

Method for refining functional boron stainless steel sheet structure through large-deformation machining

PendingCN122012883AAchieve large deformation forgingrealize rollingIncreasing energy efficiencyElectric furnaceThin slabBorium
The invention relates to the technical field of metallurgical materials, and particularly discloses a method for refining a functional boron stainless steel sheet structure through large deformation machining. Comprising the following steps that S1, smelting is conducted, specifically, a steel ingot is prepared through a vacuum induction smelting and electroslag remelting duplex technology; s2, sheath forging: carrying out surface treatment on the steel ingot to obtain a blank, filling the blank into a steel sheath for packaging to form a blank with a sheath, and carrying out hot forging on the blank with the sheath to obtain a forged plate with the sheath; s3, sheath rolling: performing multi-pass hot rolling on the forged plate to prepare a hot-rolled thin plate with a sheath; s4, solution treatment: carrying out solution treatment on the hot-rolled sheet to obtain a solution-treated sheet; and S5, surface treatment is conducted, specifically, after a steel ladle sleeve of the thin plate subjected to solution treatment is removed, surface treatment is conducted, and the functional boron stainless steel thin plate with the needed specification and size is obtained. By means of the method, the boron stainless steel sheet which is excellent in mechanical property, uniform in thermal neutron absorption and suitable for being used as a structure / shielding integrated material can be prepared.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Automatic PIN folding machine and PIN folding method thereof

The present invention discloses an automatic PIN folding machine, comprising: a feeding device, a conveying track and a folding and shearing device, wherein the feeding device is a device for arranging disordered PINs into PINs with the same direction and outputting them to the conveying track; the conveying track is a strip track for conveying PINs; the folding and shearing device is used to bend the PIN needles to a predetermined shape and cut off the excess material, and comprises a folding and shearing frame, a row PIN track, a bending mechanism, a shearing mechanism and a driving mechanism. The present invention automatically loads the disordered PINs after the feeding device arranges them, and the row PIN track in the folding and shearing device conveys the received PINs to the bending station in sequence. The bending mechanism and the shearing mechanism are driven by the driving mechanism to bend and shear the PINs in sequence, thereby obtaining the final product PIN, with simple configuration, high production efficiency and economical processing cost.
Owner:CHERRY CHIEF PRECISION IND KUNSHAN

Write-in method of ferroelectric field effect transistor array

The invention discloses a writing method of a ferroelectric field effect transistor array, and belongs to the technical field of micro-nano electronics. According to the method, a self-compensation write-in method is provided for a multi-stage storage ferroelectric field effect transistor array of a 1T structure, a pulse sequence of a self-compensation waveform is adopted for write-in and corresponds to different storage states in multi-stage storage, positive pulse write-in is adopted when the pulse sequence is higher than an intermediate storage state, and negative pulse write-in is adopted when the pulse sequence is lower than the intermediate storage state. The method comprises the following steps of: writing a FeFET memory cell, performing read verification on a written state of the FeFET memory cell, starting an error correction program for correction when a write error is found so as to reach a target state, and starting a durability recovery program to recover the performance of the FeFET memory device if the error correction program fails; the method simultaneously solves the reliability problems of large fluctuation between devices and between cycles, limited durability and serious write-in crosstalk, has the advantages of simple process, low hardware overhead and the like, is compatible with the current advanced node CMOS technology, and is easy to implement.
Owner:PEKING UNIV

High-precision edge sensor for spliced mirror surface and working method of high-precision edge sensor

The invention discloses a high-precision edge sensor for splicing mirror surfaces and a working method of the high-precision edge sensor in the technical field of mirror surface splicing, the high-precision edge sensor comprises a high-reflection bridging device, the bridging device is arranged in a gap between adjacent spliced sub-mirrors, and a Shack-Hartmann wavefront sensor is arranged behind the bridging device arranged in each sub-mirror. High-reflection bridging devices stretching across adjacent sub-mirrors are installed between splicing seams which are several millimeters wide of a narrow spliced mirror surface, a working light path of an optical system is utilized, the overall tilt error of each sub-mirror is obtained through a Shack-Hartmann wavefront sensor on a system focal plane, and meanwhile the overall tilt error of each sub-mirror is measured through the Shack-Hartmann wavefront sensor, and the overall tilt error of each sub-mirror is measured through the Shack-Hartmann wavefront sensor. And the inclination error at the abutted seam can be obtained (detected on the sub-aperture where the bridging device on the abutted seam is located). The invention has the advantages of extremely low price, stable performance and extremely high precision, is not influenced by environmental factors, and is extremely convenient to install, assemble and debug. The method is suitable for detecting the splicing error between the adjacent sub-mirrors of various optical splicing mirror surfaces.
Owner:YANGZHOU UNIV

Forming process of mining high-load multifunctional composite material

The invention discloses a molding process of a mining high-load multifunctional composite material, and relates to the technical field of polymer composite material molding processing, and the molding process comprises the following steps: preparing a surface layer composite master batch and a core layer composite master batch; the surface layer master batch and the core layer master batch are subjected to melt extrusion, and melts extruded by the two single-screw exhaust type extruders are converged into a co-extrusion die head; the metal net is pretreated, the pretreated metal net is guided into a guide-in channel of a co-extrusion die head, the metal net is compositely extruded through the co-extrusion die head, and a composite plate blank is formed; feeding the plate blank into a three-roller calender; feeding the composite plate blank into a slow cooling system; feeding the composite board into an infrared heating embossing system, heating the board, embossing anti-skid lines on the surface layer of the board, and cooling and shaping to obtain a finished product. Air holes and defects caused by exhaust type extrusion and volatile components are thoroughly eliminated through exhaust type extrusion, the mechanical property is remarkably improved, exhaust type extrusion is combined with the precise co-extrusion die head, and it is guaranteed that the thickness of each layer of ABA is uniform, and interface bonding is firm.
Owner:CHINA COAL SCI & TECH GRP NANJING DESIGN & RES INST CO LTD +1

Method for preparing high-quality manganese monoxide by taking medium-low-grade pyrolusite as raw material

The invention discloses a method for preparing high-quality manganese monoxide by taking medium-low-grade pyrolusite as a raw material, and relates to the technical field of preparation of high-quality manganese monoxide products. The method comprises the following steps: crushing to prepare powder, blending coal, uniformly mixing, carrying out high-temperature reduction roasting through a reduction kiln to obtain manganese monoxide powder, cooling through a slag cooler, and carrying out magnetic separation in a magnetic separator to obtain concentrate which is a high-quality manganese monoxide product. By means of the magnetic separation process, the concentrate recovery rate reaches 50% or above, the resource utilization rate is remarkably increased, meanwhile, the battery-grade manganese sulfate product is prepared from the tailings through the leaching process, recycling of the tailings is achieved, and economic benefits are further increased; by optimizing the technological process, waste generation is reduced, the influence on the environment is reduced, the manganese content of the obtained manganese monoxide product reaches 60% or above, the quality requirement of high-quality manganese monoxide is met, and the manganese monoxide can be used for battery materials and can replace feed-grade manganese sulfate to be applied to multiple fields of animals and plants, catalysts, electronic materials and the like.
Owner:GUANGXI ESOKE NEW MATERIAL TECH CO LTD

A system and process for producing nickel by smelting laterite nickel ore in a coal-based roasting-reducing electric furnace

The present application belongs to the technical field of metallurgy and mineral processing suspension fluidization roasting, and particularly relates to a system and process for producing nickel by coal-based roasting reduction electric furnace smelting of laterite nickel ore. The system comprises a feeding drying unit, a preheating drying and crushing unit, a heat supply heating unit, a coal-based pre-reduction unit, an electric furnace smelting waste heat recovery unit, a dust removal, powder conveying and desulfurization unit, and the laterite nickel ore is processed by the "dry powder crushing, coal suspension roasting, coal-based pre-reduction, and ore-smelting electric furnace" technology. The present application has strong adaptability to raw materials, can produce high-value products from cheap resources, and adopts multiple energy-saving technologies in the new process to greatly reduce energy consumption and realize efficient use of energy. The present application makes up for the limitations and deficiencies of the traditional RKEF process, can reduce process energy consumption, improve resource recovery rate, provides a new innovative breakthrough direction for efficient utilization of laterite nickel ore resources for smelting nickel-iron alloy, and can greatly improve the economic value of the development and utilization of such resources.
Owner:SHANGHAI MILESTONE TECH CO LTD

Dynamic multi-product integrated scheduling method with tight delivery deadlines

ActiveCN118536763BImprove scheduling effectshorten completion timeData processing applicationsManufacturing computing systemsIdle timeLead time
The present invention proposes a dynamic multi-product comprehensive scheduling method with tight delivery deadlines. The method first adopts the "layer priority + short time + equipment priority" strategy to improve the parallel processing capability of the equipment; secondly, a product contribution value strategy is proposed to obtain the product contribution value according to the number of urgent processes, the maximum delivery date and the total processing time of the product, thereby determining the processing order of the product, effectively making multiple products processed on time within the delivery period; finally, a game process dynamic adjustment strategy is proposed to dynamically adjust the process according to different situations, so that the process is compactly processed, the idle time of the equipment is reduced, and the overall utilization rate of the equipment is improved.
Owner:JILIN NORMAL UNIV

Bipolar storage battery

Provided is a bipolar battery that can achieve hermetic seal and mechanical strength in both and increase energy density. A bipolar lead acid battery (100) includes an outer wall (112), (122) integrally projected along a peripheral edge on a facing surface of one frame-plate (111), (121) out of frame-plates facing each other; and a joining wall (113), (133) integrally projected on a facing surface of the other frame-plate (111), (131) out of the frame-plates facing each other, the joining wall being positioned inwardly from the outer wall (112), (122) of the one frame-plate (111), (121) and surrounding a peripheral edge of a cell member (140) . The joining wall (113), (133) is joined to the facing surface of the one frame-plate (111), (121) via a joining material (151).
Owner:FURUKAWA ELECTRIC CO LTD +1

A lead bronze alloy for ultra-low temperature and its preparation method and an ultra-low temperature heavy load shaft sleeve

The application belongs to the technical field of copper alloy material, and discloses a lead bronze alloy for super-low temperature, a preparation method thereof and an ultra-low temperature heavy load shaft sleeve, the alloy comprises, in percentage by weight, Sn 9.0%-11.0%, Pb 8.0%-11.0%, Ni 1.0%-2.5%, rare earth elements 0.05%-0.5%, and the balance of Cu and inevitable impurities. Through nickel micro-alloying, rare earth treatment and lead sulfur frying pretreatment, the problems of low-temperature embrittlement, lead segregation and grain coarsening of the traditional lead bronze are solved. The application also provides an optimized preparation process of the alloy, and an ultra-low temperature heavy load shaft sleeve suitable for the joint bearing position of a large mining electric shovel type excavator manufactured by using the alloy.
Owner:SHANXI KERUI MACHINERY EQUIPMENT CO LTD

Water-resistant starch adhesive and preparation method thereof

PendingCN122503039Areduce dosageLow free formaldehyde contentPolymer sciencePolyvinyl alcohol
This invention discloses a water-resistant starch adhesive and its preparation method. The adhesive is composed of the following raw materials in parts by weight: 380-420 parts starch, 15-18 parts polyvinyl alcohol, 4-6 parts urea, 0.5-1.5 parts urea-formaldehyde resin, 1-3 parts borax, 10-12 parts sodium hydroxide, and 1000-1200 parts water. In the preparation process, polyvinyl alcohol, urea, and a trace amount of urea-formaldehyde resin are first pre-condensed at 65-75°C under acidic conditions (pH 4.2-4.8) to generate a polyvinyl alcohol-urea condensate. Then, the condensate is combined with starch and other raw materials in a one-pot process to complete gelatinization and final product formulation. This invention uses the polyvinyl alcohol-urea condensate to effectively replace more than 90% of the conventionally used commercial urea-formaldehyde resin, resulting in extremely low free formaldehyde content, a delamination time of 27-28 hours, and an adhesive strength of 850-860 N / m. The overall raw material cost is reduced by approximately 13%, and the process is simple, making it suitable for the production of corrugated cardboard adhesives.
Owner:ZHEJIANG XIASHA RONGCHENG PACKING CO LTD

A pyridine-imine type metal complex, its preparation method and application

This invention relates to a pyridine-imine type metal complex, its preparation method, and its applications. The pyridine-imine type metal complex is an NNN-pyridine-imine type metal complex or an NN-pyridine-imine type metal complex; its structural formula is shown in Formulas 1-4. The pyridine-imine type metal complex and its preparation method described in this invention, as well as its application in hydrosilylation and silanization reactions, allow for the one-pot synthesis of the desired metal complex. The preparation method is simple and low-cost, eliminating the cumbersome separation steps in traditional two-step methods, significantly reducing reaction time, increasing the maximum yield to over 95%, and exhibiting high catalytic activity and selectivity in hydrosilylation and silanization reactions.
Owner:SHIHEZI UNIVERSITY +2

Efficient outdoor dunaliella salina culture system based on brine resources

The invention discloses an efficient outdoor dunaliella salina culture system based on brine resources. The efficient outdoor dunaliella salina culture system comprises a brine collection and storage module, a brine pretreatment module, an inoculation and initial culture module and a large-scale outdoor culture module which are communicated in sequence, the brine pretreatment module comprises an original brine buffer pool, a purification pool and a nutritive salt blending pool which are communicated in sequence, a micro-nano bubble generator, a heating device and an electrochemical disinfection device are arranged in the original brine buffer pool, a conveying pipeline with an electromagnetic valve is communicated between the original brine buffer pool and the purification pool, a free chlorine sensor is arranged in the original brine buffer pool, and the nutritive salt blending pool is communicated with the purification pool. The free chlorine sensor is in signal connection with an electromagnetic valve on the conveying pipeline through a controller; an alkaline solution and an interception screen plate are arranged in the purification tank; and a microfiltration device is communicated between the nutritive salt blending tank and the purification tank. By means of module integration and automatic control, the brine pretreatment process is shortened, the equipment cost is reduced, and the system has the all-weather operation capacity and is suitable for large-scale outdoor dunaliella salina cultivation.
Owner:徐亚南

Integrated production process and production line of carbon black on-line multi-stage gradient oxidation modification

PendingCN122502917APrecise control typesPrecisely control quantity
This invention discloses an integrated online multi-stage gradient oxidation modification process and production line for carbon black, belonging to the field of carbon black production technology. Based on an oil furnace carbon black production line, this invention sequentially sets up a three-stage gradient oxidation unit: oxygen pre-oxidation via pneumatic conveying pipeline, gas-phase oxidation via vertical fluidized bed ozone-oxygen, and liquid-phase oxidation via a wet granulator with hydrogen peroxide. Each unit can be started and stopped independently and freely combined. The oxidized carbon black can be flexibly produced in multiple forms, including powder, wet granulation, and dry granulation. This invention integrates carbon black production and oxidation modification control, allowing precise control of oxygen-containing functional groups on the carbon black surface. The process flow is compact, with a single unit having an oxidation capacity of up to 60 tons / day. It features low energy consumption, high product stability, and is suitable for large-scale industrial continuous production.
Owner:SINOCHEM PETROCHEMICAL RESEARCH INSTITUTE (QUANZHOU) CO LTD +1

Preparation method and device of n-heptanoic acid

The invention discloses a method and a device for preparing n-heptanoic acid. The device comprises a first mixing device, a second mixing device and a third mixing device, a material inlet of the reaction device is connected with a material outlet of the first mixing device; a material inlet of the first separation device is connected with a material outlet of the reaction device; a material inlet of the second separation device is connected with a material outlet of the first separation device; a material inlet of the first distillation device is connected with a material outlet of the second separation device; a material inlet of the second distillation device is connected with a material outlet of the first distillation device; a material inlet of the second mixing device is connected with a material outlet of the second distillation device; a material inlet of the first reaction rectification device is connected with a material outlet of the second mixing device; a material inlet of the second reactive distillation device is connected with a material outlet of the first reactive distillation device. 1-hexene is used as a raw material, n-heptanoic acid is prepared through the hydromethyl esterification reaction and the reactive distillation hydrolysis technology, the source is wide, and the raw material cost is reduced by 30% or above.
Owner:SHANDONG CHAMBROAD PETROCHEMICALS CO LTD +1

A continuous fiber reinforced cross rib metal plate forming device and method

The present invention belongs to the technical field of metal matrix composite materials, and specifically relates to a continuous fiber reinforced cross-ribbed metal plate forming equipment and method, the purpose of which is to solve the problem that the prior art can only prepare ribbed structural plates reinforced with longitudinal unidirectional fibers, the structural plates have mechanical anisotropy, are prone to premature failure and damage in the transverse direction, and cannot fully exert the reinforcing effect of reinforcing fibers and ribs. The present invention adopts a cross-wound fiber duct mechanism to synchronously lay reinforcing fibers, and directly prepares cross-rib reinforced metal structural plates using a casting and rolling process, so that reinforcing fibers with excellent tensile properties are arranged on the reinforcing ribs of the structural plates, and the tensile capacity of the reinforcing fibers is fully exerted, and the equipment has the advantages of compact structure, simple preparation process, and strong performance of the structural plate.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Automatic ceramic pugging equipment

The utility model discloses automatic ceramic pugging equipment which comprises a machine frame and a pugging barrel installed on one side of the top end of the machine frame, a front stirring box is installed at the top end of the pugging barrel, and belt wheel type double-shaft stirring assemblies are installed in the pugging barrel and the front stirring box. The outer wall of one side of the rack is provided with a worm gear speed reduction transmission assembly used for driving the belt wheel type double-shaft stirring assembly to work, the bottom end of the mud mixing barrel is provided with a discharging box, the bottom of the rack below the discharging box is provided with a mud hammering box, and one side of the interior of the mud hammering box is fixedly provided with a partition plate. According to the utility model, intermediate steps and material transfer time in the processing process are reduced, so that the production cycle is shortened, compared with introduction of a plurality of independent devices, a more compact process flow can save the production space and reduce the equipment investment cost, and meanwhile, due to integration of a plurality of operation steps, the design of a clay processing line is simpler.
Owner:WEIYE CERAMICS CO LTD

Process for the synthesis of ortho-chlorobenzylamines

ActiveCN122010743Bemission reductionPrecisely control the heating rate
This application relates to the field of organic synthetic chemistry, specifically disclosing a method for synthesizing o-chlorobenzylamine. The method uses o-chlorobenzyl, liquid ammonia, and liquid alkali as raw materials. The preparation process mainly includes amination reaction, liquid ammonia recovery, alkali treatment for deamination, and product purification steps. Specifically, in a high-pressure reactor, liquid ammonia is used as the reaction medium, reacting with o-chlorobenzyl under low temperature and specific pressure conditions. After the reaction, the liquid ammonia is distilled off and recovered for recycling. Then, the ammonia is dissolved in water, released with alkali, and residual ammonia is removed under negative pressure. Finally, the organic phase is separated by static layering, followed by dehydration and filtration to obtain a high-purity o-chlorobenzylamine product. This method significantly suppresses side reactions by constructing a solvent-free system and synergistically controlling the reaction temperature, material ratio, and post-treatment parameters, thereby achieving highly selective synthesis. The entire process has the advantages of simple operation, environmental friendliness, high resource utilization, and ease of industrial implementation.
Owner:LIAONING LONGTIAN CHEM TECH CO LTD