26 results about "Iron copper" patented technology

The application relates to the field of wastewater treatment catalysis, and discloses a Fe-Cu-Mn ternary hydrotalcite-like catalyst and a preparation method thereof, which comprises iron, copper and manganese; the iron, copper and manganese are distributed in the layer plate metal central site in an atomic dispersion mode; the layer plate oxygen octahedron is in a non-symmetrical stretching distortion state; a 3.2-4.8 degree deviation is generated in the manganese oxygen copper bond angle in the layer plate; the lattice parameter a of the layer plate 110 crystal face direction is 0.305-0.312 nm; the molar ratio of copper to manganese is 1:2-1:5; and the molar sum of copper and manganese to the molar ratio of iron is 2:1-4:1. According to the application, the lattice non-symmetrical distortion induces the space overlap of the auxiliary metal and the iron active center orbit, an electron transfer path is constructed, the shielding effect of the hydroxyl ion on the iron active site under the alkaline environment is eliminated, the catalytic site activity is maintained, and stable and efficient catalytic treatment under wide pH working conditions is realized.

The application discloses a preparation method of a modified vanadium-iron denitration catalyst and relates to the technical field of catalysis. The application does not need to introduce tungsten-containing and molybdenum-containing raw materials in the whole process. A vanadium source alkaline solution and a citric acid chelated iron-copper chelated solution are prepared, a double-stage mixing in-situ composite process is adopted, the iron-copper chelated solution is added into a premixed material of a carrier and a vanadium source in a buried material type dropping mode, a linkage control system pH is stabilized, a V-Fe-Cu-O ternary solid solution is formed, then phosphorus elements are embedded and a molding aid is added to mix and form a plastic mud material, after aging, extrusion molding and gradient drying, the material is calcined in an oxidative atmosphere in stages, and a stable V-Fe-Cu-P composite solid solution is formed. Through time sequence decoupling and precise process control, the application realizes uniform dispersion of active component molecules at a molecular level, improves the denitration activity, mechanical strength and sulfur deactivation resistance of the catalyst, and the process is simple and suitable for industrial scale production.

The invention relates to a low-nickel high-iron-copper alloy glass mold material and a preparation method thereof, and relates to the field of alloy materials and preparation thereof, and the low-nickel high-iron-copper alloy glass mold material comprises the following components in percentage by weight: 4.00 to 6.50 percent of Ni, 8.5 to 11.00 percent of Al, 0.00 to 1.00 percent of Zn, 3.00 to 5.00 percent of Fe, 0.00 to 0.20 percent of Sn, 0.00 to 0.50 percent of Si, 0.00 to 0.10 percent of Pb, and the balance of Cu and inevitable impurities. The preparation method comprises the following steps that smelting is conducted at the temperature of 1250-1300 DEG C according to the composition proportion, and alloy liquid is obtained; the alloy liquid is poured into a mold at the temperature of 1200-1250 DEG C, a casting mold is subjected to heat preservation and cooling for 2-3 h and taken out, and a blank is obtained; and cutting and shaping the blank, carrying out heat treatment, and cooling to obtain the low-nickel high-iron copper alloy glass mold material. By regulating and controlling the composition and the preparation process, the nickel content in the glass mold material is reduced, and meanwhile, the good wear resistance, hardness, thermal stability and heat-conducting property of the material are kept.

The invention discloses an activated carbon loaded metal oxide and a preparation method and application thereof, and relates to the technical field of environmental adsorption purification, the activated carbon loaded metal oxide comprises an activated carbon loaded iron oxide, an activated carbon loaded copper oxide and an activated carbon loaded iron-copper bimetallic oxide; the active carbon loaded metal oxide prepared by the invention effectively enhances the specific surface area of the active carbon and the activity of surface functional groups, obviously improves the adsorption capacity of the novel triazine ultraviolet absorbent, overcomes the problems of limited adsorption capacity and slower adsorption rate of the traditional active carbon, can activate a high-grade oxidant, and improves the adsorption efficiency of the novel triazine ultraviolet absorbent. The novel triazine ultraviolet absorbent is efficiently and synergistically removed and degraded through the synergistic effect of adsorption and degradation, meanwhile, the whole preparation process is simple and convenient, the cost is low, the materials can be repeatedly used, and good application and popularization value and economic feasibility are achieved.

The invention provides an arsenic adsorbent as well as a preparation method and application thereof, the arsenic adsorbent takes nano gamma-Al2O3 as a carrier, and an iron-copper sulfide active phase with an Fe-Cu-S electron-rich interface is loaded on the surface of the carrier. The preparation method of the arsenic adsorbent comprises the following steps: dispersing an iron source, a copper source and nano gamma-Al2O3 in a solvent, and then sequentially carrying out ultrasonic treatment and drying treatment to obtain a precursor; and mixing the precursor with a sulfur source, and calcining to obtain the arsenic adsorbent. The adsorbent has high adsorption capacity and wide temperature range adaptability to trivalent arsenic and pentavalent arsenic in flue gas, has stable and even promoted performance in an SO2-containing atmosphere, and can convert gaseous arsenic into a stable crystal phase for fixation.

The invention discloses a device and a method for inhibiting electric arc additive manufacturing structure segregation of an iron-copper binary refractory gold wire, and belongs to the field of electric arc additive manufacturing of wires. According to the method, powder adding, porous stirring and low-temperature rapid cooling synergism are adopted, and segregation is inhibited from the combined action of three aspects of thermodynamics, dynamics and the solidification process. The method comprises the steps that Fe wires and Cu wires serve as independent electrodes to be fed into a molten pool, alloying is achieved in an electric arc molten pool by accurately controlling the wire feeding speed, and meanwhile nickel-titanium carbide composite powder is fed into the molten pool under the condition that the molten pool is stirred through a porous stirring head; when a welding system starts to move, a gas-solid mixed CO2 forced cooling device is started immediately, gas-solid mixed CO2 is directly sprayed to the surface of a deposition layer close to the rear portion of a molten pool, rapid cooling is achieved, layer-by-layer accumulation is conducted, and FeCu alloy electric arc additive manufacturing is achieved. The alloy deposition layer is uniform in structure and fine in grain, and the mechanical property can be greatly improved.

This invention relates to the field of wastewater treatment technology, specifically to a process and system for removing heavy metals from ink wastewater. It includes the following steps: coagulating ink wastewater with a metal composite coagulant, adsorbing and removing sludge wastewater with an ink sludge-based adsorbent, and filtering wastewater using a catechol-modified polyethersulfone membrane, followed by detection. This invention utilizes high-iron copper slag with titanium tetrachloride and acetylacetone to prepare a metal composite coagulant, transforming the copper slag into a high-value-added water treatment agent. This significantly reduces the production cost of the coagulant. Through the synergistic leaching of dilute sulfuric acid and hydrogen peroxide, the iron element in the copper slag is efficiently extracted and oxidized into Fe, which has a strong coagulation effect. 3+ The trace amounts of copper and other metal ions dissolved also provide a basis for subsequent composite reactions, thus improving the overall treatment efficiency and effluent quality of oily sludge wastewater.

The invention discloses a preparation method and application of an iron-copper diatomic nano-enzyme, and relates to a preparation method and application of a nano-enzyme. The invention aims to solve the problem that the clinical application of the traditional treatment means is often limited and challenged by severe systemic toxicity, drug resistance and tumor recurrence although the traditional treatment means improve the survival rate of patients. The method comprises the following steps: 1, dissolving dimethylimidazole in absolute methanol, and stirring to obtain a solution A; step 2, dissolving zinc nitrate hexahydrate, ferric ammonium citrate and copper acetylacetonate in absolute methanol, and stirring to obtain a solution B; 3, mixing and stirring the solution A and the solution B, centrifuging, washing and drying to obtain a white sample ZIF-8; and step 4, pyrolyzing the white sample ZIF-8 at 900 DEG C to obtain black powder, namely the iron-copper diatomic nano-enzyme. The invention belongs to the technical field of active oxygen mediated tumor treatment.

A catalyst for removing nitrous oxide and a method of removing nitrous oxide are provided. The catalyst includes a metal oxide powder and an iron-copper compound. The iron-copper compound is attached to the surface of the metal oxide powder, where the metal oxide powder includes zinc oxide, magnesium oxide, aluminum oxide, or a combination thereof. A molar ratio of iron in the iron-copper compound to the metal in the metal oxide powder is 1:1.3-4.0.

The invention relates to an iron-copper double-monatomic electrocatalyst as well as a preparation method and application thereof, and belongs to the field of nano functional materials. The iron-copper double-monatomic electrocatalyst is composed of active metal components and a carrier, the active metal components are loaded on the carrier in a monatomic dispersion state, the active metal components are Fe and Cu, and the carrier is an oxygen-sulfur co-doped carbon nanotube. The preparation method comprises the following steps: preparing a sulfur-rich polymer nanotube through a super-crosslinking reaction, carrying out pyrolysis and oxygen plasma treatment to obtain a carbon nanotube co-doped with rich oxygen and sulfur atoms, and carrying out impregnation-calcination to obtain the iron-copper double-single-atom anchored carbon nanotube electrocatalyst. And an electrocatalytic reduction nitrate catalyst with excellent catalytic activity, high ammonia selectivity and stable monatomic active sites is prepared.

The invention discloses carbon-based bimetal composite chitosan gel and application thereof to removal of dye in printing and dyeing wastewater, and belongs to the technical field of environmental functional materials and water treatment. The preparation method comprises the following steps: firstly, carrying out amino modification on wood charcoal through polydopamine modification and microwave hydrothermal treatment to obtain a PDA-coated BC material; and then mixing with chitosan sol, then carrying out coordination crosslinking with an iron-copper bimetal salt solution, and finally carrying out gelation, washing and freeze drying to obtain the composite gel. The prepared composite gel has the biocompatibility of chitosan, the high specific surface area of a carbon material and the synergistic enhancement effect of bimetal, and has the advantages that the composite gel can be used for treating dyes in printing and dyeing wastewater, especially anionic dyes; the adsorbent shows high adsorption capacity (for example, the Congo red adsorption capacity can reach 1678 mg / g or above) and excellent cyclic regeneration performance (the capacity retention rate gt after five times of circulation is 90%) which are far superior to those of a traditional adsorbent, and has a wide application prospect in the field of advanced treatment of industrial wastewater.

The invention discloses a gold concentrate sulfur content high-frequency infrared absorption determination method adopting an iron-copper composite fluxing agent, and belongs to the technical field of ore chemical analysis. The method comprises the following steps: drawing a standard working curve by using ZBK series certified standard substances similar to a gold concentrate matrix, weighing 0.04-0.06 g of a gold concentrate sample, firstly adding 0.2-0.4 g of a pure iron fluxing agent to cover the sample, then adding 0.7-0.9 g of a pure copper fluxing agent, releasing SO2 through high-frequency combustion, and detecting the sulfur content through infrared absorption. The problems of splashing, insufficient combustion, matrix interference and high cost of a traditional tungsten-based fluxing agent are solved, the vulcanization risk caused when pure copper is independently used is avoided, the absolute error value of a measurement result and an external detection result is smaller than or equal to 0.33%, the accuracy rate reaches 100%, and the method is suitable for gold concentrate with the sulfur content of 0.437%-47.40% and has accuracy, stability and economical efficiency.

The application discloses a method for realizing iron circulation and copper reinforced recovery in a one-step copper smelting process of low-iron copper concentrate, which comprises the following steps: directly pouring smelting slag produced by mixing low-iron copper concentrate with iron ore powder and smelting by a one-step copper smelting method into a reduction smelting furnace, adding appropriate amount of reducing agent blocks and slagging agents, forming copper-iron alloy after reduction and purification, and naturally separating and settling the copper-iron alloy in the furnace, returning the obtained copper-containing molten iron at the lower layer to a flash smelting furnace for reuse, and directly selling the upper layer molten slag after water quenching as tailing slag. The application returns the copper-containing molten iron at the lower layer to the furnace, solves the problem that the copper-iron alloy is difficult to apply, replaces part of iron-containing raw materials for slagging, realizes iron circulation, returns the molten liquid directly, avoids heat loss as much as possible, indirectly saves energy consumption, and makes the melts more easily contact, which is beneficial to smelting and slagging reactions.

The application provides a method for high-selectivity separation of iron and copper and application thereof; the method for high-selectivity separation of iron and copper comprises the following steps: S1, providing a complexing agent-alkali mixed solution; the complexing agent-alkali mixed solution contains a metal ion complexing agent and an alkaline substance; S2, mixing and treating an iron-copper mixed solution and the complexing agent-alkali mixed solution to obtain a reaction solution; the iron-copper mixed solution contains ferric ion, ferrous ion and copper ion; the molar ratio of the metal ion complexing agent to the copper ion is 1.5-3:1; the molar ratio of the alkaline substance to iron in the iron-copper mixed solution is 4-8:1; the mixing and treating is carried out at a temperature of 10-45 DEG C; S3, performing solid-liquid separation on the reaction solution to obtain a copper-containing separation solution and a ferric solid substance. The application effectively realizes high-selectivity separation of iron and copper in the iron-copper mixed solution.

This invention provides a method for preparing a two-dimensional heterostructure catalytic material (Fe / Cu-TCPP / S-CN) composed of a self-assembled iron-copper bimetallic porphyrin hydrogen-bonded organic framework and carbon nitride, and its application in photocatalytic synergistic activation of persulfate (PMS) for the degradation of bisphenol A (BPA), belonging to the field of environmental pollution control technology. The material uses urea and melamine as precursors, and prepares a carbon nitride support with abundant nitrogen sites and a high specific surface area through mechanical mixing and high-temperature calcination. Furthermore, an iron-copper bimetallic porphyrin is stably anchored to the carbon nitride surface in the form of a hydrogen-bonded framework through a self-assembly strategy. Structural characterization shows that iron and copper atoms are highly dispersed atomically within the porphyrin ring, forming a unique two-site coordination structure. This configuration not only enhances the electronic coupling between the metal and the support, but also constructs a superlattice interface with significant quantum confinement effects through π–π stacking and van der Waals interactions, effectively promoting the spatial separation and directional migration of photogenerated carriers, providing an ideal electron transport channel for PMS activation. This study successfully developed a highly efficient oxidation system dominated by singlet oxygen through the rational design of a heterostructure of an iron-copper bimetallic porphyrin hydrogen-bonded organic framework and carbon nitride. This material exhibits excellent and stable pollutant degradation performance under a wide pH range (especially in alkaline environments), providing a new material platform and theoretical basis for developing advanced oxidation technologies suitable for complex real-world water bodies.

The invention relates to a sodium-iron-copper-containing activated carbon adsorbent for adsorbing hydrogen sulfide and a preparation method thereof. The adsorbent is prepared from powdered carbon, iron salt, copper salt, sodium salt, potassium oxalate and ammonium ferric citrate through a specific process. The preparation method comprises the following steps: dissolving the raw materials in water to obtain a modified solution; kneading with carbon powder, and performing extrusion molding; and carrying out heat preservation and drying, and activating at 450-650 DEG C in an atmosphere in which the volume ratio of nitrogen to water vapor is (5-10): 1 and the temperature of the water vapor is 150-180 DEG C, so as to obtain the catalyst. The adsorbent adopts sodium, iron and copper ternary synergistic modification, and an additive and an activation process are optimized, so that the adsorbent shows high sulfur capacity (up to 9.2%) and excellent cycle stability (the capacity fading rate after 50 times of regeneration is less than 5%) in a simulated industrial atmosphere with the H2S content of 1-500ppm. After adsorption saturation, regeneration can be realized only by treatment at 120-180 DEG C in a hydrogen sulfide-free atmosphere, no waste liquid is generated in the process, and the regeneration energy consumption is low. The adsorbent is especially suitable for removal and resource recycling of low-concentration hydrogen sulfide such as blast furnace gas and chemical waste gas.

The invention discloses an iron-copper nano-enzyme modified electrode, an electrochemical sensor and a preparation method and application of the iron-copper nano-enzyme modified electrode. The preparation method of the iron-copper nano-enzyme modified electrode comprises the following steps: S1, synthesizing iron-copper nano-enzyme; s2, mixing the iron-copper nano enzyme and chitosan according to a mass ratio of 1: 2-2: 1, then adding deionized water, and uniformly mixing to obtain a colloidal solution; s3, preparing an electrode, and activating the electrode to obtain an activated electrode; and S4, covering the surface of the activated electrode with the colloidal solution, and curing to form a thin film to obtain the iron-copper nano-enzyme modified electrode. When the iron-copper nano-enzyme modified electrode is used as a working electrode of an electrochemical sensor, vitamin B12 can be detected, and the iron-copper nano-enzyme modified electrode has good selectivity, interference resistance and stability and can provide technical support for detection of vitamin B12 in food or drugs.

The invention discloses a method for jointly judging the iron-copper mineralization potential of medium-acidity invading rock based on zircon and apatite, and belongs to the technical field of mineral exploration. Comprising the following steps: (1) systematically collecting an acidic invasive rock sample, and sorting zircon and apatite; (2) carrying out cathodoluminescence image analysis and main trace element test on zircon and apatite; and (3) according to the structure and component characteristics of the zircon and the apatite, calculating the oxygen fugacity delta FMQ, the water content, the Yb / Gd ratio of the zircon and the 100 * XCl / XOH / XF, 1000 * V / (Mn + 100Ga) ratio of the apatite, and rapidly identifying the mineralization potential of the porphyry-skarn type iron-copper ore bed. The method is easy and convenient to operate, short in testing period, high in discrimination efficiency and suitable for rapid screening and prospecting target area delineation of iron-copper mineralizing rock masses in the early exploration stage, and has remarkable practical value and popularization prospects.

The application provides a method for recycling all rare earth elements in rare earth magnetic material waste, comprising the following steps: firstly, the rare earth magnetic material waste is crushed and combusted and oxidized to obtain fully oxidized products; then, the fully oxidized products obtained in the above step are mixed with carbon, and after heat treatment reduction and cooling, metal materials and rare earth oxides are obtained after separation. The application firstly removes impurities, crushes and oxidizes the materials, and converts rare earth metals and other metals into oxides. The oxides of iron and copper are reduced to metal by carbon reduction body. The metal is in liquid state, and the oxide is in solid state. The metal and the oxide are effectively separated by physical method after pouring into a mold and cooling. The application can realize the full recycling of metals in rare earth magnetic material waste, and has the advantages of simple operation, continuous controllable process, low cost, no need of using acid and alkali, no waste water, no emission of toxic gas, no waste, and suitability for continuous operation.

This invention relates to the field of colorectal cancer immunotherapy technology, and discloses a near-infrared triggered multi-ion nanoplatform, its preparation method, and its applications. The nanoplatform is a CuZnPB-PDA-FA nanoplatform, whose structure includes: a core, which is copper-zinc doped Prussian blue; an interface layer covering the surface of the core, which is a polydopamine coating; and a targeting agent connected to the interface layer, the targeting agent including folic acid and its derivatives. The nanoplatform provided by this invention integrates compartment permissioning, kinetic synchronization, and alarm translation within the same architecture, solving the spatiotemporal control problem of traditional carriers being unable to synchronously coordinate photothermal effects, ion stress, and immune initiation. It can precisely regulate the release of metal ions, induce iron / copper death, and activate the immune response, exhibiting significant tumor-killing effects, and providing a new solution for immunotherapy of MSS / pMMR type CRC patients.

The present application relates to the field of ceramic and its preparation process, in particular to a kind of ceramic with high hardness, rough edge and stained glaze surface and its preparation method, and the body is provided with pointed decoration, the edge of pointed decoration forms rough edge, and green stain is distributed on glaze surface.In the process of drying body, humidity gradient mainly appears on edge, since pointed decoration protrudes from body, and its edge narrows, more flowing air is contacted by edge part, compared with other parts of body, drying speed is faster, soluble salt precipitate appears, therefore, black-brown scum is distributed on the edge of pointed decoration on body, chalcopyrite and bornite in body combine with sulfur and iron to generate sulphuric iron copper compound when glazing, sulphuric iron copper compound penetrates glaze surface and concentrates, and local part of glaze surface is dyed into green spot;After glazing, the whole glaze surface is milky white matte satin surface, green stain is distributed on it, and black-brown rough edge is formed on the edge of local pointed decoration, which has unique artistic beauty.

This invention discloses a method for determining the iron-copper mineralization potential of intermediate-acidic intrusive rocks based on the combined use of zircon and apatite, belonging to the field of mineral exploration technology. The method includes the following steps: (1) systematically collecting samples of intermediate-acidic intrusive rocks and separating zircon and apatite; (2) conducting cathodoluminescence image analysis and major and trace element testing of zircon and apatite; (3) calculating the oxygen fugacity ΔFMQ, water content, Yb / Gd ratio of zircon, and 100*X of apatite based on the structural and compositional characteristics of zircon and apatite. Cl / X OH / X F The ratio of 1000*V / (Mn+100Ga) is used to quickly identify the mineralization potential of porphyry-skarn type iron-copper deposits. This method is simple to operate, has a short testing cycle, and high discrimination efficiency. It is suitable for the rapid screening of iron-copper ore-forming rock bodies and the delineation of prospecting target areas in the early stages of exploration, and has significant practical value and prospects for promotion.

The invention relates to the technical field of wastewater treatment catalysis, and discloses a Fe-Cu-Mn ternary hydrotalcite-like catalyst and a preparation method thereof.The Fe-Cu-Mn ternary hydrotalcite-like catalyst comprises iron, copper and manganese, the iron, the copper and the manganese are dispersed and distributed at a laminated metal center site in an atomic scale, and the Fe-Cu-Mn ternary hydrotalcite-like catalyst is characterized in that a laminated metal octahedron is in an asymmetric stretching distorted state; the method comprises the following steps of: adding an auxiliary metal into a laminate, enabling a manganese-oxygen-copper bond angle in the laminate to deviate from 3.2 degrees to 4.8 degrees, enabling a lattice parameter a in a 110 crystal face direction of the laminate to be 0.305 nm to 0.312 nm, enabling a molar ratio of copper to manganese to be (1: 2) to (1: 5), and enabling a molar ratio of the sum of molar weights of copper and manganese to iron to be (2: 1) to (4: 1). The shielding effect of hydroxyl ions on iron active sites in an alkaline environment is relieved, the activity of catalytic sites is maintained, and stable and efficient catalytic treatment under a wide pH working condition is realized.

This invention relates to the preparation of an iron-copper-sodium alginate composite microsphere and its application in activating periodate to inactivate bacteria and degrade pollutants. The microspheres utilize sodium alginate as a three-dimensional network framework, forming a stable gel structure through ionic cross-linking. A bimetallic active component composed of zero-valent iron and trace amounts of copper is uniformly dispersed within the microspheres. This process activates periodate to achieve highly efficient removal of antibiotic-resistant bacteria, resistance genes, and new pollutants from water. The iron-copper-sodium alginate microspheres are prepared via ionic cross-linking. They are highly efficient and broad-spectrum, achieving rapid sterilization through iron-copper synergy at low metal loading. They are environmentally friendly, as the solid microspheres are completely recyclable, reducing secondary pollution. They are also low-cost, being primarily iron-based with trace amounts of copper for synergistic effects, and reusable. Therefore, this invention provides a novel technical solution for bacterial inactivation and resistance gene removal in water, possessing significant theoretical importance and application prospects.