144 results about "Iron Black" patented technology

This is the producing method of a kind of oxidized iron oxide black including following contents: prepare ferrite watery solution; use sodium hydroxide as neutralizaing agent and react with ferrite watery solution to produce hydroxide ferrous; use oxygenous gas as oxidant, and react with said hydroxide ferrous to produce iron oxide black; make the prepared iron oxide black water washed, sieved, dried and comminuted orderly to get blue oxidized iron oxide black pigment product. The oxidized iron oxide black produced by this method has high purity and thin crystal grain, the grain size of produced pigment is thin and even, and has saturated blue ink light black and stable effect to light and atmosphere. It also has strong pigmentation strength and hiding power, and can be used in such fine chemical industry products as printing ink and carbon powder. The farther project is using waste residue containing ferrous sulfate and vented in titanium oxide powder production, to produce ferrous sulfate watery solution and produce oxidized iron oxide black, which can adequately use industry waste material to produce oxidized iron oxide black products of high quality, and reduce environmental pollution.

The invention discloses a preparation process of medium temperature resistant iron oxide black; iron oxide black is obtained through an oxidation method, a filter cake which is not dried is directly used, the iron oxide black, the filter cake and the water are added in, a beating machine is controlled to prepare serum with a certain concentration, water-soluble additive is added in during a beating process, neutralizer is added, and the pH value is regulated; and the stirring is continued, iron black is produced through normal steps after heat insulation, dried and beaten into powder, and the medium temperature resistant iron oxide black is obtained. The iron oxide black prepared by the process can stand 260 to 270DEG C, does not discolor or has small color changes; and the iron black has the advantages of good heat resistant performance, and no flammability and no easy discoloring when in transportation and storage, ensures small heating color changes as well as the safety of transportation and storage, and simultaneously can be used at 270DEG C.

The invention relates to the producing method of a kind of oxidized iron black. It includes following steps: add ferrite watery solution into neutralization action pot, add ammonia and mix round watery solution to neutralize it to prepare hydroxidized ferrous gelatin, transmit the produced gelatin into oxidizing reaction pot; send oxygenous gas and meanwhile heat gelatin to make it oxidated, after reaction we can get oxidized iron oxide black pulp; separate iron oxide black and mother liquor in pulp; make the separated iron oxide black water washed, sieved, dried and comminuted orderly to get finished products. This method adopts liquid phase method to make its reaction rate greatly improved, the particle granularity of oxidized iron oxide black finished products even; it has higher pigmentation strength, and the obtained product contains 96.5% Fe3O4. Compared with the industry appointed standard sample, its pigmentation strength is 200% - 250%; ulteriorly make offal in producing titanium oxide powder as material of this method, which is beneficial to circulation usage of industry waste material and environmental protection, and can greatly reduce producing cost.

The invention relates to a method for preparing brake pads by using scaly potassium carbonate in the field of auto parts processing. The raw material composition and weight percentage are respectively: 5-10 binder, 15-25 reinforcement fiber, 20-30 abrasive, 15-25 lubricant and 30-40 regulator. The binder is modified phenolic resin, including nitrile modified phenolic resin or silicon modified phenolic resin, the reinforcing fiber includes copper cotton fiber and aramid pulp or a combination of ceramic fiber and aramid pulp, and the abrasive includes One or more combinations of zirconium silicate, iron black, aluminum oxide, and friction powder. The lubricant includes a combination of inorganic lubricant or organic lubricant and metal sulfide. The regulator is flaky potassium titanate, or flake Any combination of potassium titanate, barium sulfate and calcium carbonate. The brake pad prepared by the invention can well absorb the heat energy released by high-speed braking and reduce the heat conduction of the brake pad. So it has excellent high temperature braking performance and braking comfort.

The invention discloses a method for rapidly preparing black iron oxide from ferrous sulfate as a titanium dioxide waste residue and belongs to the technical field of chemical engineering. The method comprises the following steps: a, removing impurities from ferrous sulfate to obtain a ferrous sulfate solution; b, taking a part of ferrous sulfate solution, diluting until the concentration is 10-15%, then introducing air or oxygen, controlling the pH value of the solution at 3-6, controlling the reaction temperature at 20-30 DEG C, and reacting until the color of the solution becomes earthy yellow, so as to obtain a crystal seed liquid; simultaneously and continuously adding the residue ferrous sulfate solution and ammonia to the crystal seed liquid, stirring and heating, controlling the pH value of the solution at 3.0-9.5, controlling the temperature at 70-90 DEG C, while continuously introducing air or oxygen, reacting for 5 to 6 hours, and filtering to a black iron precipitate; c, washing the iron black precipitate, filtering and drying to obtain the black iron oxide product. Since the process for preparing the black iron oxide disclosed by the invention requires only 5-6 hours and has the advantages of short time and low cost, and the method has relatively high economical and social benefits.

The invention mainly discloses a manufacturing method of granular iron oxide black pigment, which comprises the steps of: sending iron black block material with the water content of 1-2% into a double-roller grinder, and grinding the dry iron black block material into granules with the needed size in the double-roller grinder; then, classifying by a rotary vibration sieve; and collecting granular iron oxide black of 20-80 meshes. The technique has the advantages of solving the problem of the occupational disease caused by dust pollution of iron oxide pigment industry, improving the working environment of workers and protecting the health of the workers. The invention also discloses the double-roller grinder for realizing the method, the upper part of the grinder is provided with a pair of rollers which are provided with a fit clearance adjusting mechanism; three layers of vibrating screens which are driven by an eccentric motor and have the number of sieve meshes that are increased gradually from top to bottom are positioned just under the rollers; and the edges of the vibrating screens are provided with discharge holes. The double-roller grinder leads the material to be bitten into a grinding area by utilizing the frictional force of roller surfaces, thus crushing the material by extruding or splitting.

The invention relates to a method for preparing split-phase coloring iron black glaze, which comprises the steps of: preparing a boron frit: uniformly grinding feldspar, quartz, calcite, boric acid, NaNO3 and Li2CO3 in a mortar, putting a material mixture in a high-temperature furnace into a crucible calcined to a temperature of 1260 DEG C, melting for 10min and hardening; mixing the feldspar, the quartz, Suzhou soil, the calcite, talcum, ZnO, calcium phosphate, the boron frit, Fe2O3, cellulose, sodium tripolyphosphate and CMC (Carboxy Methylated Cellulose), finely grinding to 250-mesh, regulating the specific weight of glaze slip to be 1.7g/cm<3>; and uniformly applying the glaze slip to a blank, raising the temperature to 1160-1240 DEG C, insulating for 20-50min, then naturally cooling. The coloring is carried out by using split-phase textures generated by the frit in a glaze firing process. Less coloring oxides are used to generate higher coloring capacity, thus, iron black glaze which has the content of ferric oxide only accounting for 30-50 percent relative to that of a color material in the common glaze and has the advantages of low cost, high stability and high blackness is prepared.

An environment-friendly brake pad adopting copper-free microcrystalline friction materials is made from components including acrylic pulp, mullite ceramic fibers, brucite fibers, nano tin powder, zinc sulfide, brown aluminum oxide, antimony sulfide, cellulosic fibers, iron black, calcium carbonate whiskers, calcium sulfate whiskers, potassium titanate, crystalline flake graphite, calcined petroleum coke, flake aluminum powder, nitrile rubber powder, phenolic resin, nanometer manganese hydroxide and molybdenum disulfide. Through reasonable collocation of the multiple components, advantages of the various components given full play to the friction materials can be guaranteed. By the reasonable collocation of the new fiber materials, the defect of respect performance can be made up, and high performance can be produced due to mutual influenced action. The environment-friendly brake pad is good in resistance to high-temperature recession, long in service life, good in wear-resisting performance, stable in friction coefficient and environment friendly.

Related single-composition polyurethane waterproof paint is prepared by mixing materials of the following formula, in parts by weight, 600-680 parts of polyether DL2000, 3050 120-200 parts of polyether, 230-250 parts of chlorinated paraffin, 70-90 parts of dioctyl phthalate, 50-70 parts of iron black, 700-1200 parts of calcite powder, 150-160 parts of kaolin, 100-140 parts of toluene diisocyanate (TDI), 30-50 parts of stannous octoate, 8-12 parts of a curing agent, and 300-350 parts of xylene. Compared with conventional polyurethane waterproof paint, the single-composition polyurethane waterproof paint is simple for film coating, good in coating effect, free of surface bubbles, and good in tensile strength and elongation at break, and dried polyurethane is smooth and flat in surface and excellent in bonding effect.

The invention provides a water-based antiseptic paint for an automotive chassis. The automotive paint is prepared by mixing the following components in parts by weight: 48-52 parts of LH-302 resin, 2.0-2.5 parts of carbon black, 7-9 parts of iron black, 12-13 parts of modified aluminum tripolyphosphate, 1-3 parts of organic nitrogen zinc salt, 9-11 parts of modified filler, 0.3-0.5 parts of wetting dispersant, 0.8-1.0 part of corrosion inhibitor, 0.3-0.5 parts of substrate wetting agent, 0.1-2.0 parts of assistant and 10-12 parts of deionized water. The water-based antiseptic paint for the automotive chassis provided by the invention can be naturally dried at normal temperature and can be dried at a low temperature (dried for 0.5 hour at 80-90 DEG C), the paint film property is remarkably enhanced, and the adhesive force, the hardness and the salt fog resistance are ideal. The paint is mainly used for automobile axles, automotive chassis, auto parts and the like.

The invention relates to a preparation technique field of brake block of a car, in particular to a method for using grinding waste to prepare buoyant material of the brake block of the car. The technical proposal is as follows: the preparation of resin, fiber, a grind-enhancing agent, a grind-reducing agent, a friction modifier and a filling agent is carried out by the following technique steps of: blenching, mixing, cold forming type, vulcanization, grinding and inspection, wherein, the grind-reducing is graphite and the friction modifier is frictional powder. The resin adopts phenolic resin, the fiber adopts that aramid short fiber, ceramic fiber and copper fiber are mixed, the grind-enhancing agent adopts that zircon and iron black are mixed, the filling agent adopts that barium sulfate, potassium titanate, grinding material and tire powder are mixed. The invention uses the existing technique to prepare the buoyant material of the brake block of the car by adding the grinding waste material so as to reduce the cost. By using the product processed by the materials, the shearing strength meets the requirements, the friction performance also meets requirements and the cost is reduced.

The invention discloses an environment-friendly waterborne coating used for dip coating of track shoe. The environment-friendly waterborne coating is prepared from the following raw materials in percentages by weight: 35 to 50% of a waterborne acrylic modified epoxy emulsion, 0.25 to 0.75% of an antifoaming agent, 1.5 to 3.25% of a dispersing agent, 18 to 28% of deionized water, 0.38 to 0.93% of a neutralizing agent, 0.21 to 0.79% of a leveling and wetting agent, 1.51 to 2.39% of a flash-rust inhibitor, 0.35 to 1.23% of carbon black, 5.23 to 8.36% of iron black, 6.43 to 8.07% of barium sulfate, 6.22 to 8.69% of composite zinc phosphate, 4.31 to 5.57% of a thixotropic anti-settling agent, 3.43 to 5.07% of aluminum tripolyphosphate, 2.43 to 3.27% of talcum powder, 0.33 to 0.67% of matting powder and 0.32 to 0.58% of a thickening agent. The waterborne coating prepared by using the method provided by the invention has the following advantages: the VOC is no more than 85 g/L; the odor is low; the environment is avoided from pollution; meanwhile, the waterborne coating has matte, water resistance, salt fog resistance, excellent surface drying time, stable heat storage performance, and excellent coating film mechanical strength and impact resistance.

The color additive consists of coloring agent, dispersant, composite early strength effective water reducing agent and swelling agent. Specifically, it consists of iron black or carbon black as coloring agent, calgon or STPP as dispersant, water reducing agent and potassium aluminum sulfate as swelling agent. The color additive can change the color of cement concrete and improve the performanceof cement concrete. Specially, when the cement concrete with the color additive is used in the extension joint of asphalt bridge surface of expressway, the less color difference can raise the safetyof running vehicles.

The invention discloses a method for preparing chromium iron black from electroplated chromium-containing waste water in a recycling mode. The method comprises the following steps that 1, the total chromium, chromium (III) and chromium (VI) content in the electroplated chromium-containing waste water is measured, the pH of the waste water is adjusted to range from 8 to 11 with liquid caustic soda, and an oxidizing agent is added to oxidize chromium (III) into chromium (VI); 2, the pH of the oxidized waste water is adjusted to range from 3 to 4 with sulfuric acid, an iron-containing agent is added, stirring is carried out at normal temperature for reacting, and a reaction solution is obtained; 3, liquid caustic soda is added into the reaction solution obtained in the step 2, the pH is adjusted to range from 8 to 9, then an aeration reaction is carried out, filtering and separation are carried out, and a filter cake and filtrate are obtained, wherein the filtrate is waste water obtained after chromium removal and can be directly drained or used for the rinsing section in the step 4; the filter cake obtained in the step 3 is subjected to rinsing, drying, calcining and smashing, and the chromium iron black product is obtained. Chromium in the electroplated chromium-containing waste water is converted into chromium iron black pigments with high economic additional value through a simple process path, the problem about treatment of the electroplated chromium-containing waste water is solved, chromium resources are reutilized, and sustainable development of the resources is achieved.

The invention belongs to the technical field of light industry, in particular to a high temperature resistant anticorrosive paint and a preparation method thereof. The invention provides a high temperature resistant anticorrosive paint which is efficient and stable and a preparation method thereof. The paint contains a component A, a component B and a component C. The component A comprises the following components by weight percent: 1.0-2.0% of bentonite and 3.0-6.0% of butyl acetate. The component B comprises the following components by weight percent: 6.0-10.0% of epoxy resin and 4.0-6.0% of amino resin. The component C comprises the following components by weight percent: 28.0-32.0% of organosilicon resin A, 3.0-7.0% of organosilicon resin B, 1.0-3.0% of organic inhibitor, 1.0-2.0% of color black, 1.0-2.0% of titanium dioxide powder, 10.0-15.0% of graphite black, 2.0-6.0% of high temperature iron black, 10.0-17.0% of talcum powder, 3.0-7.0% of aluminum tripolyphosphate and 3.0-6.0% of isobutanol.

The invention provides a method for producing battery-grade manganese sulfate through manganese tailings and titanium dioxide waste sulphuric acid. The method comprises the specific steps that titanium dioxide waste sulphuric acid is subjected to reduction and leaching, the manganese tailings are ground to be fine, after solid-liquid separation, white filter residues are used as diatomite, a leaching solution is extracted by a P204 extraction agent, then light roasting powder or magnesium oxide is used for saponification, after impurity removal, battery-grade manganese sulfate is obtained through evaporation and crystallization, and byproducts comprise iron black and magnesium sulfate. According to the method, the manganese tailings and titanium dioxide waste acid are treated in cooperation, the ecological safety problem caused by accumulation of the manganese tailings is solved, a brand new utilization route for titanium dioxide waste acid is also provided, and the comprehensive utilization additional value of the manganese tailings and titanium dioxide waste acid is increased. Prepared battery-grade manganese sulfate is high in quality, simple in process and low in production cost, all the manganese tailings and titanium dioxide waste sulphuric acid are recycled, secondary pollution is not caused, zero discharge of wastewater is achieved, and the method is beneficial to environmental protection and comprehensive utilization of resources.

The invention relates to a grinding tool used in industrial production and processing and belongs to a rare earth composite corundum reinforced fiber ultrathin resin cutting blade and a production method thereof. The rare earth composite corundum reinforced fiber ultrathin resin cutting blade is characterized by being provided with a grinding material blade; the center of the grinding material blade is provided with a layer of fiberglass grid mesh. The grinding material blade is composed of the following raw materials based on weight proportion: the rare earth composite corundum 100, phenolic aldehyde ethanol solution 100, phenolic aldehyde resin-oatmeal 10-15, phenolic aldehyde resin liquid 16-28, kryocide 6-10, iron black 1-5, gypsum 3-8 and ferrous sulfide 3-8. The production method of the rare earth composite corundum reinforced fiber ultrathin resin cutting blade comprises the following steps: preprocessing the rare earth composite corundum and the phenolic aldehyde ethanol solution; then adding the phenolic aldehyde resin liquid, the phenolic aldehyde resin-oatmeal and filler successively to prepare molding materials; and lastly mixing the fiberglass gird mesh to press a finished product in a molding mould. The rare earth composite corundum reinforced fiber ultrathin resin cutting blade obviously enhances intensity, rigidity, shock resistance capacity of the cutting blade, reduces material consumption, reduces environmental pollution and can be widely applied to various metal part processing.

The invention discloses a preparation method of spherical iron black magnetic powder for laser printing and the spherical iron black magnetic powder. Iron salt, basic solution, industrial scrap iron shavings, and scrap iron wires or waste iron sheets are taken as raw materials, two-step oxidation is carried out to generate iron oxide yellow by using the raw materials, and then the iron oxide yellow is added to prepare the spherical iron black magnetic powder. In the method, the magnetic powder is obtained by oxidizing the raw materials twice and then adding the obtained oxide, has comparatively stable performance, narrow particle size distribution and comparatively low coercive force, and is better than the common magnetic powder used in laser printers. The magnetic powder has the advantages of high definition, high blackness and the like.

The invention discloses a formula and a preparation method of a polyester/epoxy resin powder coating. The formula of the powder coating comprises 723.6-750.0g of waste PET particles, 0.3-0.5mol of glycidyl methacrylate polymer, 0.98-1.02mol of dibasic acid anhydride, 1.71-1.80mol of dibasic alcohol, 0.1% of a catalyst, 10-25% of a high temperature resistant filler, 3-10% of a high temperature resistant pigment, 0.5-2% of a leveling agent and 25-40% of a curing agent. The relative molecular weight of the waste PET particles is 18000-23000, and the melting point of the waste PET particles is not lower than 260DEG C; the curing agent is one of aliphatic polyamine, alicyclic polyamines, low molecular polyamide and modified aromatic amine; the dibasic acid anhydride is dibasic acid anhydride starch ester; the high temperature resistant filler is one of mica powder, silicate powder and talcum powder; and the high temperature resistant pigment is one of titanium dioxide, iron oxide red and complex iron black. The coating has the advantages of good leveling property, good glossiness, low cost, and high economic and social benefits.

The invention discloses a kind of paint special for aquose hardware and preparation method thereof, comprising deionized water, propylene glycol, dispersant, antifoaming agent, wetting agent, imported carbon black, iron black, aquose modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether. The preparation method comprises: adding deionized water and propylene glycol in a stock boiler, and stirring at low speed; adding dispersant, antifoaming agent and wetting agent in turn and uniformly mixing; adding imported carbon black and iron black and dispersing at high speed to form uniform paint slurry; grinding the paint slurry and conveying them into a blending pot; after stirring at low speed, adding the aquos modified acrylic resin, aquos epoxy resin, propandiol butyl ether and propylene glycol ether in turn after stirring, adding deionized water to dilute. The paint has good stability, high painting effeciency, stable quality, uniform paint film, smooth surface, good hardness, strong adhesion, good anti-corrosive property, good hanging paint performance at corner, no uncoated position, saltfog resistant for 48 hours, suitable for spraying; environmental protection, low cost and wide application range.

The invention discloses a rust-proof and corrosion-resistant coating for a turning lathe. The coating comprises the following components in parts by weight: 30-50 parts of a silicon epoxy resin polymer, 4-10 parts of barium petroleum sulfonate, 7-14 parts of aluminum tripolyphosphate, 1-5 parts of nano zinc oxide, 2-6 parts of copper chromium iron black, 3-9 parts of acrylonitrile, 5-12 parts of amino resin, 2-8 parts of sodium fluosilicate, 6-10 parts of vanadium diboride and 8-14 parts of xylene. The mechanical rust-proof coating provided by the invention is long in rust-proof time and good in corrosion resistance, rust-proof oil does not need to be cleaned before coating, additional coating additives do not need to be added, and the coating can be used for long-term seal storage and rust prevention of metal mechanical workpieces.