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465 results about "Iron oxide yellow" patented technology

Yellow is the least color-stable form. Yellow iron oxide is a synthetic material of very fine particle size (but not as fine as black or red). Actual yellow iron oxides are around 85% Fe2O3 and about 12% LOI with some impurities (e.g. SiO2, CaO).

Method of comprehensively utilizing serpentine

The invention relates to a method for comprehensively utilizing serendipities, which comprises: magnetically separating the serpentinites in a strong magnetic field, obtaining amorphous silica powder which contains silicon dioxide more than 90% through filtering acid dipping solution, dissolving the amorphous silica powder through using caustic soda under high temperature, which is used for manufacturing soluble glass with medium high modulus or taken as raw materials for producing white carbon black, then, mixing sulphuric acid and hydrochloric acid or nitric acid or mixing the sulphuric acid, the hydrochloric acid and nitric acid, adding acid dipping additive to carry out compound alternative and circulating acid dipping for ore powder which is magnetically separated and processed, fractionally depositing, filtering, and removing impurity for magnesium sulfate solution which is filtered through the acid dipping and contains the impurity, through adjusting the pH value, obtaining inorganic industrial dyes which mainly contain iron oxide yellow, ferric hydroxide and aluminum hydroxide, enriching the nickel, which is convenient for abstracting the nickel from the serpentinites, finally obtaining high purity magnesium oxide through refining refined magnesium sulfate solution whose impurity is removed after ammonium hydrogen carbonate and ammonial solution or sodium sulfide is used to deposit, and also obtaining ammonium sulfate or sodium sulfate which contains magnesium and calcium after liquid which is filtered is evaporated.
Owner:刘湘霖 +1

Colored oily fertilizer anti-caking agent prepared from inorganic pigment and application of colored oily fertilizer anti-caking agent

The invention relates to a colored oily fertilizer anti-caking agent prepared from inorganic pigment and application of the colored oily fertilizer anti-caking agent. The colored oily fertilizer anti-caking agent comprises the following ingredients in percentage by mass: 2-4% of iron oxide red, iron oxide yellow, iron oxide blue, iron oxide green, iron oxide purple, iron oxide brown or iron oxide black and 98-96% of an oily anti-caking agent, and is prepared by uniformly milling and mixing such ingredients by adopting a horizontal mill. The colored oily fertilizer anti-caking agent is applied to fertilizer coating, and 1.0-1.6 kilograms are used in each ton of a fertilizer, so that a corresponding color of red, yellow, blue, green, purple, brown or black is shown in the appearance of the fertilizer. The colored oily fertilizer anti-caking agent with the corresponding color of red, yellow, blue, green, purple, brown or black is provided for fertilizers with different appearance colors, so that inside and outside colors of the fertilizer are consistent, color difference and materials with inconsistent colors are avoided; the colored oily fertilizer anti-caking agent is stable and uniform in color, strong in coating capability, resistant to light and heat, colorfast and non-discoloring, can also be used as a fertilizer variety distinguishing and anti-counterfeiting mark, and is low in use cost and good in anti-caking performance.
Owner:HUBEI FORBON TECH

Matte epoxy powder coating and preparation method thereof

The invention discloses matte epoxy powder coating and a preparation method of the matte epoxy powder coating. The matte epoxy powder coating comprises, by weight, 500 parts-600 parts of epoxy resin (E-12), 10 parts-15 parts of dicyandiamide (DICY), 8 parts-12 parts of a flatting agent (GLP503), 3 parts-5 parts of brightener (BLC701), 4 parts-6 parts of benzoin, 5 parts-8 parts of modified polyamide wax micro powder, 4 parts-6 parts of degasifier (SA500), 3 parts-5 parts of flow promoter (W-1), 5 parts-10 parts of an extinction agent (XG603-1F), 150 parts-200 parts of extinction barium sulfate, 50 parts-100 parts of torispherical silica powder, 5 parts-8 parts of 2-phenyl-imidazoline, 4 parts-5 parts of carbon black, 7 parts-10 parts of iron oxide yellow, 3 parts-5 parts of iron oxide red and 4 parts-6 parts of titanium dioxide. The prepared matte epoxy powder coating has the advantages of being high in hardness, high in intensity, high in wear resistance, good in heat resistance, good in aging resistance, short in curing time, environment-friendly, pollution-free, and the like. The matte epoxy powder coating is excellent in performance, and is high in performance indexes of acid-base resistance, salt mist resistance, and organic solvent resistance, wherein the organic solvent includes gasoline.
Owner:ANHUI HUAHUI SUYE TECH SHARE CO LTD

Orange grain type polyester/epoxy powder coating and preparation method thereof

ActiveCN103160194AImprove thermal stabilityImprove scratch resistance and anti-agingPowdery paintsEpoxy resin coatingsEpoxyMicrocrystalline wax
The invention discloses orange grain type polyester/epoxy powder coating and a preparation method of the orange grain type polyester/epoxy powder coating. The orange grain type polyester/epoxy powder coating is made from the following raw material, by weight, of 250-300 parts of polyester resin (P5086), 250-300 parts of epoxy resin (E-12), 160-200 parts of barium sulfate, 50-100 parts of spherical silica powder, 5-10 parts of light calcium carbonate, 5-10 parts of modified microcrystalline wax micro powder, 5-8 parts of wrinkle agent (XG608), 4-6 parts of benzoin, 8-12 parts of organic coated titanium dioxide, 5-10 parts of phenyl-2-imidazoline, 6-8 parts of 2-methyl imidazole, 15-20 parts of iron oxide yellow, 15-20 parts of iron oxide red and 5-10 parts of carbon black. The powder coating prepared with the preparation method has the advantages of being high in hardness, strength and wear resistance, good in heat-resisting performance and anti-aging performance, short in curing time, environment-friendly, free of pollution and the like. Cured coating has the texture effect of being provided with orange grains which are delicate and clear, evenly distributed and brings visual comfort for people, and the coating is excellent in overall performance.
Owner:ANHUI HUAHUI SUYE TECH SHARE CO LTD

Four-layer-color synthetic resin block and preparation method thereof

The invention discloses a four-layer-color synthetic resin block and a preparation method thereof. The four-layer-color synthetic resin block is formed by four layers of structures sequentially, each layer of the structures comprise components as follows: polymethyl methacrylate, iron oxide red, iron oxide black, iron oxide yellow, titanium white, methyl methacrylate and ethylene glycol dimethacrylate. The preparation method comprises the steps as follows: polymethyl methacrylate powder is dried at a temperature of 80-90 degrees; four layers of materials are prepared in proportion respectively, and each layer of the materials are required to be mixed uniformly and kneaded until doughing time, so that a plastic dough material is formed; four layers of the plastic dough material are subjected to hot-pressing and bounded together in order in a die, the hot-pressing temperature is 110-130 DEG C, and the hot-pressing time is 10-20 min; and the four-layer-color synthetic resin block after hot-pressing is subjected to heat treatment at a temperature of 80-90 DEG C for 10-12 h, so that a four-layer-color synthetic resin block product is obtained. A dental model or temporary crown bridge, which is processed through the four-layer-color synthetic resin block, is natural and vivid in developing, and the preparation method is simple.
Owner:SHANDONG HUGE DENTAL MATERIAL CO LTD

Method for producing iron oxide yellow and iron oxide red by using waste hydrochloric acid solution

InactiveCN104512933AReapplyGood colorFerric oxidesStainingChloride
The invention provides a method for producing iron oxide yellow and iron oxide red by using a waste hydrochloric acid solution. The method comprises the following steps: 1, purifying the waste hydrochloric acid solution: taking a steel waste acid solution, adjusting the pH value, adding a certain amount of waste sheet iron, carrying out controlled temperature hydrolysis for 18-24h, adding a flocculating agent, standing for above 24h, and taking the obtained supernatant; 2, preparing crystal seeds: adding the solution obtained in step 1, liquid alkali and water into a crystal seed tank, controlling the temperature and the pH value, and carrying out a preliminary oxidation reaction on ferrous chloride to generate a small amount of iron oxide nuclei; 3, carrying out an oxidation reaction: pumping the nuclei into an oxidation tank, adding sheet iron and water, and introducing compressed air to fully oxidize in order to generate iron oxide crystals on the nuclei; 4, processing byproducts; and 5, carrying out purifying post-treatment. A raw material used in the invention is the steel cleaning hydrochloric acid waste liquid, and is processed to generate useful products comprising iron oxide red and iron oxide yellow, so the waste is changed to valuables. Pigments produced through the method have the advantages of good staining degree, pure and right color, and good client feedback.
Owner:天津市大港华明化工厂

High-temperature-resistant epoxy powder coating for corrosion prevention of pipeline

The invention relates to a high-temperature-resistant epoxy powder coating for corrosion prevention of a pipeline. The high-temperature-resistant epoxy powder coating comprises the following raw material components in percentage by weight: 50-60% of modified phenolic epoxy resin, 3-4% of toughened resin, 3-4% of a curing agent, 30-40% of a filler, 1-2% of pigments and 1-2% of additives. The epoxy value of the modified phenolic epoxy resin is 0.2-0.3eq/100g, and the softening point is 65-75 DEG C; the toughened resin is solid epoxy resin modified by nitrile butadiene rubber; the curing agent is an imidazole curing agent or a modified phenolic curing agent; the filler is titanium dioxide, wollastonite powder, mica powder, barite powder or several types thereof; the pigments comprise phthalocyanine blue and iron oxide yellow; and the additives comprise more of an acrylic acid leveling agent, a benzoin defoaming agent, a fumed silica thixotropic agent and dimethylimidazole. As a bottom-layer coating of a 3PE (polyethylene)/3PP (polypropylene) anti-corrosion coating, the high-temperature-resistant epoxy powder coating can still keep good binding force at the temperature of 120 DEG C and further ensure that the 3PE/3PP anti-corrosion coating can still keep stable coating performance at the temperature of 120 DEG C.
Owner:SHANGHAI HILONG PETROCHEM RES INST +2

Method for preparing iron oxide yellow pigment by carrying out resourceful treatment on pyrite wastewater

The invention discloses a method for preparing an iron oxide yellow pigment by carrying out resourceful treatment on pyrite wastewater. The method comprises the following steps: using the pyrite wastewater as the crystal seed raw material; adding alkaline solution into the pyrite wastewater and adjusting a pH value to between 5 to 7.5; standing the mixture and putting the sediments into a reactor; pumping air into the reactor; making the sediments and the air react with each other by heating and stirring to prepare iron oxide yellow crystal seed; adding the iron oxide yellow crystal seed, the raw material pyrite wastewater the volume of which is 1.5 to 2.5 times of that of the iron oxide yellow crystal seed, and iron powders excessive relatively to ferrous sulphate in the raw material pyrite wastewater, pumping the air into the mixture, making the mixture and the air react with each other by heating and stirring, controlling a temperature of between 70 and 85 DEG C and an air adding amount of between 3 and 5m3/h; tracking the reaction product in the reaction liquid and sampling to test chromatic light; and when the chromatic light of the reaction product is consilient with that of a sample of iron oxide yellow pigment by comparing the reaction product with the sample of iron oxide yellow pigment, stopping the reaction, and processing the reaction liquid to obtain the iron oxide yellow pigment. The invention not only processes the acid pyrite wastewater to make the acid pyrite wastewater discharged after reaching standards, but also utilizes useful components in the pyrite wastewater to prepare the iron oxide yellow pigment, and realizes the resourceful treatment of the waste.
Owner:ZHEJIANG UNIV OF TECH
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