109 results about "Ferric Oxide Red" patented technology

The invention aims to provide a device and method for extracting iron from red mud and preparing iron oxide red, and belongs to the technical field of resource utilization, hydrochloric acid is adopted to leach iron element in the red mud, and a ferric chloride solution is separated from leachate through an extraction process. And then, carrying out alkali precipitation, washing and firing to prepare the high-purity iron oxide red. By using the method disclosed by the invention, the iron resource in the red mud can be recycled, so that the dual purposes of resource utilization and environment-friendly treatment are achieved.

The invention discloses an inorganic copolymer anticorrosive paint and a preparation method thereof, and relates to the technical field of paints. The invention discloses inorganic copolymer anticorrosive paint. The coating is prepared from the following raw materials in parts by weight: 20 to 30 parts of silica sol, 8 to 15 parts of sodium hydroxide, 30 to 45 parts of metakaolin, 8 to 20 parts of quartz sand, 15 to 25 parts of water, 0.3 to 2 parts of sodium polyacrylate, 0.2 to 3 parts of polydimethylsiloxane emulsion, 5 to 12 parts of modified nano titanium dioxide, 6 to 10 parts of modified epoxy resin, 10 to 25 parts of hydroxyethyl methylacrylate, 5 to 10 parts of zinc phosphate, 3 to 8 parts of aluminum triphosphate and 2 to 6 parts of iron oxide red. The raw materials of the inorganic copolymer anticorrosive paint are scientifically proportioned, and the anticorrosive performance is enhanced through the modified nano titanium dioxide and the epoxy resin. Material uniformity is ensured through step-by-step feeding and ultrasonic dispersion in preparation, and stability is improved through vacuum defoaming and nitrogen protection. The components such as the silica sol and the zinc phosphate have a synergistic effect to form a compact coating, and the coating is high in corrosion resistance, good in constructability and suitable for various scenes.

The invention relates to the technical field of refractory materials, in particular to a preparation process of hydration-resistant synthetic magnesia-calcium sand. Comprising the following steps: 1) grinding dolomite and magnesite into fine powder with the granularity of 200 meshes; (2) adding the workmanship dolomite fine powder and the magnesite fine powder in the step (1) into a high-speed mixing mill, adding cerium oxide and iron oxide red powder, and fully mixing; 3) adding water accounting for 22-38% of the total weight of the mixed material, and mixing for 45-60 minutes to obtain uniform wet powder without dry powder; (4) pressing the uniform wet powder into wet green bricks by using a brick press; (5) putting the wet green bricks into a drying kiln, drying for 24-30 hours at the drying temperature of 50-80 DEG C, and sintering in a high-temperature sintering device; the firing temperature is 1600 to 1700 DEG C; and 6) crushing the sintered green brick to finally obtain the magnesia-calcium sand. The magnesia-calcium sand prepared by the invention has good hydration resistance and high-temperature usability.

The invention discloses a method for synthesizing iron phosphate from iron oxide red, and belongs to the technical field of iron phosphate. The method comprises the following steps: (1) diluting concentrated phosphoric acid to obtain 45-70wt% phosphoric acid, using pure water as a diluent, and recovering washing liquor and / or recovering filtrate; (2) dissolving iron oxide red in 45-70wt% phosphoric acid with the weight 4-8 times that of the iron oxide red, and stirring and dissolving at 75-95 DEG C for 1-4 hours; (3) performing solid-liquid separation, taking filtrate, heating the filtrate to 50-70 DEG C, adding pure water of which the weight is 0.7-1.5 times that of the filtrate, and continuously heating the filtrate to 90-100 DEG C at the heating speed of 0.8-1.5 DEG C / min; after the solution is changed from red to powder white, continuously carrying out heat preservation reaction for 2-5 hours; (4) carrying out solid-liquid separation to obtain recovered filtrate; washing the filter residues for 1-2 times, wherein pure water which is 8-15 times of the filter residues is used for washing each time; combining the washing liquor to obtain recycled washing liquor; and (5) drying the washed filter residues to obtain iron phosphate.

The present invention provides a method for preparing polyferric sulfate from solid waste yellow ferrous sulfate in a titanium dioxide factory, comprising the following steps: dissolving the yellow ferrous sulfate raw material in water, adding iron oxide red under heating conditions, stirring until the reaction is complete, and then filtering to remove insoluble impurities; adding an oxidant to the filtrate, heating and stirring to carry out oxidation, hydrolysis, and polymerization reactions to obtain a liquid product; concentrating and drying the liquid product to prepare solid polyferric sulfate. The method neutralizes the free acid in the raw material yellow ferrous sulfate by adding iron oxide red, increases the content of effective component iron in the system, and the prepared product has a relatively high basicity and good polymerization effect, and no external acid or alkali is required during the preparation process. The present invention eliminates the environmental protection hidden danger caused by the stacking of solid waste, enables the comprehensive utilization of industrial waste by-products, reduces the production cost of polyferric sulfate, and improves the economic benefit of titanium dioxide production.

The invention relates to a special color master batch for imitating walnut wood, a preparation method of the color master batch and a method for preparing a walnut wood imitating polyolefin floor by using the color master batch. The walnut-imitated color master batch comprises the following components in percentage by mass: 10-12% of titanium dioxide, 2.5-3.0% of carbon black, 3-5% of iron oxide red, 2-4% of iron oxide yellow, 0.5-1% of phthalocyanine blue, 1-2% of a dispersing agent and the balance of a resin carrier, and the sum of the components is 100%. According to the technical scheme, through three key technologies of accurate color matching of multiple pigments, efficient dispersion and temperature gradient control, the walnut-wood-imitating polyolefin floor achieves the level of natural walnut wood in the dimensions of color simulation degree, texture stereoscopic impression and the like, and exceeds the level of the natural walnut wood in the indexes of material cost, weather resistance, processing efficiency, environmental friendliness and the like.

The invention discloses a method for synthesizing a Cl-doped LFP / C electrode material. Comprising the following steps: mixing a lithium source, a phosphorus source and pickling iron oxide red in a solvent, performing ball milling, and adding a carbon source material and a chlorine doping source to obtain slurry; drying the obtained slurry to obtain a mixed powder material; and calcining and sintering the obtained mixed powder material to obtain the Cl-doped LFP / C electrode material. The Cl-doped LFP / C electrode material is prepared by taking the acid pickling iron oxide red as a raw material, so that the production cost of the LFP electrode material is saved, and a new thought is provided for comprehensive utilization of the acid pickling iron oxide red. And the prepared Cl-doped LFP / C electrode material shows excellent multiplying power and cycle performance.

The utility model discloses superfine iron oxide red pigment grinding equipment which comprises a fixing frame, a box body is fixedly installed on the fixing frame, a sealing plate abuts against the outer side of the box body, the box body and the sealing plate are connected in a rotating mode, a feeding hopper is fixedly installed on the sealing plate, and the feeding hopper is connected with the box body in a rotating mode. A vibrator is fixedly arranged on one side of the sealing plate, a discharging hopper is fixedly installed on the box body, and the box body, the feeding hopper and the discharging hopper communicate with one another. After pigment raw materials are poured into the box body from the feeding hopper, pigment blocks enter the filter cartridge, then the rotating shaft is driven by the servo motor to rotate, the rotating plate can sequentially drive the fixing piece and the grinding ball to rotate, the grinding ball is located in the filter cartridge to rotate at a high speed, and the grinding effect is improved. The pigment block grinding device is simple in structure and operation, and the pigment blocks can be quickly and accurately ground by the aid of the pigment block grinding device.

This invention belongs to the field of solid waste resource recycling technology in the metallurgical industry. It discloses a process for preparing iron oxide red and extracting titanium dioxide from high-iron red mud. The process involves mixing high-iron red mud with an alkaline agent, followed by water leaching to obtain a water-leached solution and a water-leached residue. The water-leached solution undergoes desilication and carbon removal treatment to obtain aluminum hydroxide and sodium carbonate solutions. The water-leached residue is then acid-leached with sulfuric acid; silicon is recovered as silica gel, while aluminum and iron enter the solution and undergo polymerization to prepare a water purification agent. The acid-leached residue is treated with a high-temperature heap leaching-water leaching process using concentrated sulfuric acid to achieve efficient dissolution and separation of titanium. The titanium-iron mixed solution is subjected to stepwise crystallization control, successively precipitating ferric sulfate and ferrous sulfate crystals, which are then pyrolyzed to generate high-purity iron oxide red. Finally, the mother liquor is subjected to titanium precipitation and pyrolysis to obtain titanium dioxide. This invention achieves efficient separation and high-value utilization of all components of iron, titanium, aluminum, and silicon in red mud. The process flow is rationally cyclical, resulting in high-value-added products with low energy consumption and no secondary pollution.

The present application relates to the technical field of steel plate surface treatment, and particularly relates to a weathering steel rust layer purple coloring treatment agent and a use method thereof, the coloring treatment agent is composed of pre-coloring agent and sealing coloring agent; the pre-coloring agent comprises: tannic acid 12-17 g / L, pH regulator 2.2-2.5 g / L, additive 0.05-0.08 g / L, and the rest is water; the sealing coloring agent comprises: chitosan 8-10 g / L, coloring agent 1.5-3 g / L, dispersing agent 2-5 g / L, and the rest is solvent; the coloring agent is at least one of iron oxide red and ultramarine purple. The coloring treatment agent is applied to the surface of the weathering steel covered with rust layer after natural rusting or after the rust layer is stabilized, so that the rust layer is colored, the surface of the weathering steel after treatment is purple, and has a good decorative appearance.

The utility model discloses a tool for scraping and cleaning materials after grinding of a grinding groove for iron oxide red production, which relates to the technical field of iron oxide red production and comprises a workbench, a grinding disc is fixedly mounted at the top of the workbench, a rotating ring is further rotatably mounted at the top of the workbench, and the rotating ring is rotatably sleeved outside the grinding disc. And a driving mechanism used for driving the rotating ring to rotate is arranged on one side of the workbench, a stand column is installed on one side of the top of the rotating ring, a pair of disassembling and assembling pieces used for fixing the stand column are arranged on the rotating ring, and a bearing plate is installed at the upper end of the stand column. By arranging the driving mechanism and the cleaning mechanism, the cleaning mechanism can be driven by the driving mechanism to rotate and clean in the grinding disc, materials on the inner wall of the grinding disc can be comprehensively scraped by the bottom scraping plate and the side scraping plate on the hanging bracket, and meanwhile, the scraped materials are conveyed into the dust collector through the dust collection panel and the ventilation pipe; and thorough cleaning of materials in the grinding disc is achieved.

The invention belongs to the technical field of ink-jet printing ink, and provides ink-jet printing inorganic ink for a soft porcelain material as well as a preparation method and application of the ink-jet printing inorganic ink. The ink-jet printing inorganic ink for the soft porcelain material comprises the following components in percentage by mass: 21-35% of an inorganic pigment, 13-20% of a dispersing agent, 1.7-5.2% of modified organic silicon resin, 0.19-0.52% of a curing agent and 43-59% of a solvent, the inorganic pigment is at least one of cobalt blue, copper chrome black, titanium chrome yellow, iron oxide red and titanium oxide white; the particle size D50 of the ink is smaller than or equal to 0.25-0.4 mu m, the viscosity is 10-15 mPa.s, the surface tension is 26-32 mN / m, and the PH is 8-8.5. The inorganic ink for ink-jet printing is relatively high in grinding efficiency, relatively good in rheological property, anti-settling stability and ink-jet printing performance, relatively good in adhesive force on soft porcelain, and especially more excellent in color fastness and color development stability on the soft porcelain.

The invention discloses a static environment-friendly marine ship antifouling coating which comprises the following components in percentage by mass: 10-18% of special acrylic resin, 18-20% of lime rosin, 7-8% of iron oxide red, 15-18% of special-grade zinc oxide, 3-4% of organic bentonite, 1-2% of fumed silica, 10-15% of nano silver liquid, 3-10% of titanium alloy nano slurry, 15-20% of xylene and 10-20% of cuprous oxide. According to the static environment-friendly marine ship antifouling paint disclosed by the invention, the problem of marine organism adhesion corrosion during marine operation of ship bottoms of static cross-sea bridges, drilling platforms, wind power foundations, aquaculture net cages, submarine pipelines, fishing boats with the ship speed of less than 10 knots and the like is solved; the antifouling paint does not contain organic tin such as tributyl tin fluoride, tributyl tin oxide and triphenyl tin fluoride and insecticides such as DDT, meets the environment-friendly requirement, is simple to construct, does not affect the body health of construction coating personnel, is environment-friendly and has a good antifouling effect.

The invention relates to the technical field of colored polyester POY, in particular to soft light special-shaped polyester POY and a production process thereof. The soft light special-shaped polyester POY is prepared from PET matrix resin and red master batches, the mass ratio of the red master batch to the PET matrix resin is 1: (4-5); the red master batch is prepared from PET matrix resin and surface modified iron oxide red; the content of the surface modified iron oxide red in the red master batch is 8.0-20.0 wt%. According to the invention, the iron oxide red pigment is subjected to surface modification treatment, the compatibility of the iron oxide red pigment and PET resin is improved, and the high-quality red soft-light profiled polyester with high color fastness and stable performance is obtained by optimizing and adjusting parameters such as raw material drying, extrusion temperature, mixer temperature, spinning manifold temperature, circular blowing cooling and winding speed in the production process.

The invention relates to the technical field of sculpture materials, in particular to an antibacterial sculpture material with self-repairing capability and a preparation method thereof, and the antibacterial sculpture material comprises a clay basic component, a reinforced fiber component and a functional modification component, the functional modification component is prepared from the following components in parts by weight: 2 to 3 parts of self-repairing microcapsules, 5 to 8 parts of antibacterial modified nano montmorillonite, 0.5 to 1 part of nanoscale titanium dioxide and 0.3 to 0.8 part of iron oxide red or iron oxide green. The prepared sculpture material has temperature-sensitive self-repairing, antibacterial, mildew-proof and color-adjustable properties, the mechanical property, weather resistance and processing suitability of the sculpture material are improved, and the requirements of sculpture creation and long-term storage in different scenes are met.

The purpose of this invention is to provide an apparatus and method for extracting iron from red mud and preparing ferric oxide red, belonging to the field of resource utilization technology. This invention uses hydrochloric acid to leach iron from red mud and then separates ferric chloride solution from the leachate through an extraction process. Subsequently, high-purity ferric oxide red is prepared through alkaline precipitation, washing, and calcination. By using the method of this invention, iron resources in red mud can be recovered, achieving the dual goals of resource utilization and environmentally friendly treatment.

The application discloses a kind of iron oxide red dyeing ceramic grinding wheel and its preparation process, wherein, iron oxide red dyeing ceramic grinding wheel includes the following components according to weight parts: abrasive 90-120 parts, ceramic binder 10-28 parts, iron oxide red 0.2-1 part, temporary adhesive 0.5~2 parts, and wetting agent 2~5 parts, the temporary adhesive is hydroxypropyl methyl cellulose, the wetting agent is polyquaternary ammonium salt aqueous solution, and the concentration of polyquaternary ammonium salt aqueous solution is 0.5%~5%.The application prevents the aggregation and sedimentation of iron oxide red particles by the electrostatic effect and physical barrier effect of polyquaternary ammonium salt, so that the stability of the whole mixed liquid system can be maintained for a long time, which is beneficial to the uniform dispersion of iron oxide red particles;hydroxypropyl methyl cellulose has strong water retention, which can avoid cracking and other problems caused by excessive temperature difference and rapid water evaporation during the heating and drying process of grinding wheel blank.

The invention discloses a method for preparing iron oxide red by using iron-containing electroplating waste acid liquid, and belongs to the technical field of electroplating waste liquid, the method comprises the following steps: 1, adding an iron source into acidic iron-containing electroplating waste liquid; then impurity removal treatment is carried out to remove interfering ions, and a high-content ferrous solution is obtained; step 2, diluting the high-content ferrous solution, adding an alkaline precipitator for neutralization, and adding a particle size retention agent which is a hyperbranched surfactant; introducing air to obtain precursor slurry; step 3, carrying out filter pressing and washing on the precursor slurry, and removing chloride ions and sodium ions to obtain a filter cake; dispersing the filter cake in water, adding a seed crystal, and roasting by adopting segmented temperature control to obtain iron oxide red; soluble sulfide and permanganate are compounded to remove impurities, a hyperbranched surfactant is used as a particle size retention agent, crystal nucleus agglomeration is inhibited through a steric hindrance effect, heterogeneous nucleation sites are provided, and crystal growth is guided in combination with segmented temperature control.

The invention discloses a waterproof breathable wall protection coating and a preparation method thereof, and belongs to the technical field of wall coatings. The problem that an existing outer wall waterproof coating is difficult to give consideration to breathability and waterproofness is solved. The coating comprises a primer, a floating coat and a finishing coat, the primer, the floating coat and the finish paint are respectively and independently prepared from silicone acrylic emulsion, styrene acrylic emulsion, bone glue, glutinous rice glue, nano aluminum oxide sol or nano aluminum oxide alcohol dispersion liquid, water, a dispersing agent, a coalescing agent, a defoaming agent, a thickening agent, clay filler, iron oxide red, wollastonite and hydrophobically modified bar-shaped filler; the PVC of the primer is larger than that of the CPVC, the PVC of the floating coat is approximately equal to that of the CPVC, and the PVC of the finishing coat is smaller than that of the CPVC. According to the waterproof and breathable wall protection coating, a trumpet-shaped structure with an inward opening is formed by utilizing a pigment volume concentration theory, and an aluminosilicate hydrophilic surface is formed on the surface of the coating, so that water in a wall can be quickly evaporated, and external water can be effectively prevented from entering the wall.

The invention relates to a venturi tube-based iron oxide preparation device, which comprises a reaction kettle, a venturi tube, a circulating pump, an oxygen storage device, a gas mixing cylinder and the like, a solid-liquid mixed reactant is stored in the reaction kettle, the reaction kettle is provided with a circulating gas outlet, a circulating liquid outlet and a circulating liquid inlet, and the gas mixing cylinder mixes air and oxygen and then inputs the mixture into the venturi tube; a liquid reactant enters the Venturi tube through the circulating pump, gas and liquid are fully mixed in the Venturi tube and then return to the reaction kettle, and a stainless steel heating tube is arranged in the reaction kettle to provide a heating environment. A filtering tank, a fine hole partition plate, a liquid level sensor, a temperature sensor, an oxygen content sensor and the like are further arranged. The device achieves the technical effects that oxygen in the air fully reacts with solid-liquid mixed reactants, iron oxide yellow, iron oxide red and iron oxide black can be produced according to different proportions, the universality of the device is improved, meanwhile, the efficiency of the circulating pump is improved, the service life of the circulating pump is prolonged, it is guaranteed that the reaction is conducted at the appropriate temperature and under the appropriate oxygen content, and product discharging is facilitated.

The invention discloses a method for preparing high-grade iron oxide red by taking ferrous chloride tetrahydrate as a raw material, which sequentially comprises the following three steps: dehydrating the ferrous chloride tetrahydrate, calcining the ferrous chloride and preparing the iron oxide red, and mainly comprises the following steps: drying the ferrous chloride tetrahydrate to prepare ferrous chloride powder; the ferrous chloride powder is ferrous chloride monohydrate powder or ferrous chloride dehydrate powder or mixed powder containing ferrous chloride monohydrate and ferrous chloride dehydrate, calcining the powder to prepare iron oxide red, crushing the calcined iron oxide red, feeding the crushed iron oxide red into a slurry pool, dissolving, carrying out filter pressing, and cleaning to obtain an iron oxide red filter cake; and drying and crushing the iron oxide red filter cake to obtain a high-grade iron oxide red finished product. The finished product prepared by the method meets the requirements of high-grade iron oxide red parameters on various indexes such as relative color difference value, strength difference value, iron content, 105 DEG C volatile matter mass fraction, water soluble matter mass fraction, screen residue (greater than or equal to 45 microns) mass fraction, water suspension pH value, oil absorption, product particle size and the like.

The application discloses a kind of gas mist type water-based self-repairing coating and its preparation method and application, the water-based self-repairing coating, by weight parts, including the following components: by weight parts including the following components: deionized water 10-30 parts, bactericide 0.1-0.5 parts, defoaming agent 0.1-0.5 parts, dispersing agent 1-2 parts, anti-settling agent 1-3 parts, anti-flash rust agent 0.5-1 part, modified zinc phosphate 5-10 parts, aluminum tripolyphosphate 5-15 parts, iron oxide red or iron titanium powder 5-10 parts, double-coated modified graphene microcapsule 10-35 parts, water-based nano fluorocarbon resin 20-40 parts, film-forming aid 1-5 parts, pH regulator 0.1-0.5 parts, propellant 1-5 parts.The gas mist type water-based self-repairing coating of the application can have high self-repairing width under normal temperature environment under the premise of reaching weather resistance and corrosion resistance, and has good environmental protection performance, is convenient to use by aerosol type packaging, and is more suitable for outdoor site construction.

The invention relates to the technical field of preparation of ecological regeneration composite materials, and discloses an ancient building celadon ecological regeneration composite material and a preparation method thereof.The ancient building celadon ecological regeneration composite material is prepared from 60% of celadon waste powder, 3% of a silane coupling agent, 5% of nano-silica, 7% of polyvinyl butyral, 10% of iron oxide red, 5% of a plant-based coloring agent and 10% of deionized water. According to the ancient building celadon ecological regeneration composite material and the preparation method thereof, through accurate weighing and use of a high-speed dispersion machine, uniform mixing of all the components is achieved, consistency and stability of material performance are ensured, high consistency and uniformity of the internal structure of the composite material are ensured, performance difference caused by uneven distribution of the components is avoided, and the cost is reduced. Through the application of the vacuum pouring technology and the intelligent sensor, high-density forming and real-time monitoring of the composite material are achieved, the stability and high efficiency of the curing process are ensured, and the density and structural integrity of the composite material are improved.

The utility model provides a system for producing high-purity ferrous chloride by using desiliconized purified waste acid. The system for producing the high-purity ferrous chloride by using the desiliconized purified waste acid comprises a purification system and a purification system, the purification system comprises a neutralizing tower, a reaction tank, a mixing tank, a settling tank and a purified waste acid tank which are arranged in sequence, and the purification system comprises an evaporator, a centrifugal separator, a stirring and dissolving tank and a ferrous chloride storage tank which are arranged in sequence. An inlet of the evaporator is communicated with an outlet of the purified waste acid tank. The system disclosed by the utility model can be used for regenerating and producing a high-quality iron oxide red product meeting the standard by utilizing waste acid.

The application discloses an inorganic copolymer anticorrosive paint and a preparation method thereof, and relates to the technical field of paints. The inorganic copolymer anticorrosive paint comprises the following raw materials in parts by weight: 20-30 parts of silica sol, 8-15 parts of sodium hydroxide, 30-45 parts of metakaolin, 8-20 parts of quartz sand, 15-25 parts of water, 0.3-2 parts of sodium polyacrylate, 0.2-3 parts of polydimethylsiloxane emulsion, 5-12 parts of modified nanometer titanium dioxide, 6-10 parts of modified epoxy resin, 10-25 parts of hydroxyethyl methacrylate, 5-10 parts of zinc phosphate, 3-8 parts of aluminum tripolyphosphate and 2-6 parts of red iron oxide. The inorganic copolymer anticorrosive paint has scientific raw material proportioning, and the anticorrosive performance is enhanced through the modified nanometer titanium dioxide and the epoxy resin. In the preparation, step-by-step feeding and ultrasonic dispersion are adopted to ensure that the materials are uniform, and vacuum degassing and nitrogen protection are adopted to improve the stability. The silica sol, the zinc phosphate and other components have a synergistic effect, a dense coating is formed, the anticorrosive performance is high, the construction performance is good, and the inorganic copolymer anticorrosive paint is suitable for various scenes.

The invention discloses a rapid curing powder coating special for thin-wall pipe fitting roll coating and a preparation method of the rapid curing powder coating, relates to the technical field of metal pipe fitting coating, and aims to solve the problem that the powder coating is difficult to realize uniform coating on a thin-wall base material in consideration of coating performance and pipe fitting structure stability. The invention relates to an epoxy resin paint, which is composed of 500 g of epoxy resin, 100 g of curing agent, 25 g of auxiliary agent, 18 g of pigment, 3 g of rapid curing agent and 354 g of filler, the epoxy resin is bisphenol A epoxy resin, the softening point is 80-120 DEG C, and the epoxy equivalent is 700-900 g / eq; the curing agent is a mixture of adipic dihydrazide and m-xylylenediamine; the auxiliary agent is a mixture of a modified silicone flatting agent, fumed silica and polyethylene wax micro powder; the pigment is one or a mixture of more of titanium dioxide, carbon black, iron oxide red and ultramarine. The method has the advantage of meeting the coating requirement of the precise pipe fitting.

The invention relates to the cross technical field of new energy materials and waste acid regeneration, and provides a device and method for preparing iron oxide red through pure iron or pure iron gas cutting slag and integrated electromagnetic induction spray roasting-regenerated acid circulation and application, and the method comprises the steps that pure iron or pure iron gas cutting slag is added into a regenerated hydrochloric acid solution, filtering is conducted after the operation is finished, the concentration of Fe < 3 + > is adjusted to 180-220 g / L, HCl is adjusted to 5-8 wt%, and a mixed solution is obtained; 0.1-0.3 wt% of a dispersing agent is added into the adjusted solution, then spraying and oxygen reaction are carried out, iron oxide red and hydrogen chloride are generated, the temperature ranges from 550 DEG C to 650 DEG C, the pressure ranges from-300 Pa to-600 Pa, the oxygen content ranges from 5 vol% to 10 vol%, and the reaction time ranges from 3 s to 8 s; spraying hydrogen chloride through desalted water to form regenerated hydrochloric acid and returning to the first step. The method not only solves the problem of low additional value of existing pure iron gas cutting slag treatment, but also solves the problem of low purity of iron oxide red caused by a traditional method for preparing iron oxide red.

The application discloses a two-component water-based high-temperature-resistant anticorrosive paint as well as a preparation method and application thereof, and belongs to the technical field of paints. The paint A component provided by the application simultaneously adds methylphenyl silicone resin and water glass with a modulus of 5.0-8.0, and zinc phosphate, kaolin, iron oxide red, aluminum oxide and a thickening agent are added, and meanwhile, the mass percentage range of silane coupling agent in the A component to zinc phosphate, kaolin, iron oxide red and aluminum oxide in the A component is limited, so that excellent dispersibility and suitable viscosity between the components can be realized, the adhesion and the anticorrosion performance of the coating are ensured, further introduction of glass powder can improve the high-temperature resistance of the paint. In addition, the preparation method of the paint is simple in operation and is beneficial to actual production.

The invention relates to the technical field of water-based paint, and particularly discloses high-solid-content water-based paint and a preparation process thereof. The high-solid-content water-based paint is prepared from the following raw materials in parts by weight: 7 to 20 parts of deionized water, 30 to 50 parts of high-solid-content water-based resin, 0.1 to 1 part of dispersing agent, 0.1 to 0.6 part of defoaming agent, 5 to 10 parts of anti-rust pigment, 10 to 30 parts of mica powder, 5 to 20 parts of iron oxide red, 10 to 30 parts of barium sulfate, 1 to 5 parts of coalescing agent, 0.1 to 0.5 part of flatting agent, 0.1 to 0.8 part of wetting agent and 0.5 to 2 parts of thickening agent mixed paint. According to the water-based paint, 7-20 parts of deionized water and 30-50 parts of high-solid-content water-based resin are adopted as a core matrix, a dispersing agent, a defoaming agent, an anti-rust pigment, an extender pigment and a functional additive in a specific proportion are matched, and the deionized water is added in two stages, so that the solid content of the prepared water-based paint is greatly increased, and the situation that the solid content of existing water-based paint is low is effectively solved.

The invention discloses a preparation method of permanent magnetic ferrite, and belongs to the technical field of magnetic material preparation, fine iron powder is used as an iron source raw material, the iron source raw material is converted into iron oxide through drying and multi-stage oxidation treatment in a rotary kiln, and the permanent magnetic ferrite material is obtained through multiple steps of batching, secondary grinding, pre-sintering, secondary continuous ball milling, compression molding and sintering. According to the preparation method provided by the invention, the high-performance ferrite material is prepared by replacing iron oxide red with the powdered iron with low cost and high yield, so that the selection range of high-performance permanent magnetic ferrite raw materials is widened, the cost of the raw materials is reduced, and the use value of the powdered iron is improved; through multi-stage grinding and homogenization, the silicon content in the fine iron powder is kept consistent, fluctuation of the silicon content is avoided, and the stability of the performance of the high-performance magnetic material is improved; the pre-sintering process and the raw material ratio are optimized, so that the residual magnetism of the permanent magnetic ferrite is greater than or equal to 4350Gs, and the intrinsic coercive force is greater than or equal to 5400Oe.