43 results about "Celestine" patented technology

The invention provides a carbon crystal composite microporous ceramic filter core and a preparation method thereof. The invention is characterized in that the ceramic filter core is prepared from the following raw materials by weight: 12 to 14 parts of light calcium carbonate, 9 to 12 parts of kaolin, 7 to 9 parts of diatomite, 10 to 12 parts of bamboo charcoal powder, 4 to 6 parts of charcoal dust, 1 to 2 parts of straw ash, 12 to 14 parts of celestine powder, 6 to 8 parts of talcum powder, 3 to 5 parts of mica powder, 10 to 12 parts of chlorinated paraffin, 12 to 14 parts of ethanol, 25 to 35 parts of modified bentonite and a proper amount of water. The ceramic filter core provided by the invention has a plurality of functions like filtration, adsorption and suppression of bacterial reproduction and has the protruding advantages of high purification efficiency, high temperature resistance, small pressure loss, corrosion resistance, a long service life, removal of dust in air, etc.

The invention discloses pre-coated sand with high strength and a low gas evolution rate and a preparation method thereof. The pre-coated sand with high strength and low gas evolution rate is prepared from the following raw materials in parts by weight: 60-80 parts of quartz sand, 15-20 parts of celestite, 5-10 parts of wollastonite, 0.4-0.8 parts of ethenyl tri(beta-methoxyethyoxyl) silane, 4-6 parts of pentaerythritol oleate, 3-5 parts of epoxy soybean oil, 2-3 parts of nano magnesium oxide, 0.5-1.5 parts of bisphenol A epoxy resin, 1-2 parts of thermosetting phenol resin, 3-6 parts of diaminodiphenyl methane, 5-10 parts of urotropine, 4-8 parts of calcium stearate and 3-5 parts of composite powder. Compared with the conventional pre-coated sand, the pre-coated sand disclosed by the invention is not only high in strength, good in heat resistance, good in mobility and small in roughness, but also good in gas permeability and low in gas evolution rate, so that a casting piece can be effectively prevented from generating defects such as pin holes, nitrogen gas holes and burnt-on sand, and therefore, the yield of the casting piece is greatly improved.

The invention provides a powder metallurgy helical gear which is formed by compressing the following power stocks in part by weight: 100 parts of iron powder, 1.8 to 2.0 parts of copper powder, 0.5 to 0.8 part of molybdenum powder, 0.1 to 0.3 part of cobalt powder, 0.8 to 1.2 part of nickel powder, 0.5 to 0.8 part of graphite powder, 0.1 to 0.3 part of modified wood ash, 0.2 to 0.6 part of rare earth ferrosilicon alloy, 0.1 to 0.3 part of paraffin, 0.1 to 0.2 part of ethylene bis stearamide, 0.1 to 0.3 part of celestite powder, 0.2 to 0.4 part of yttrium powder, 0.2 to 0.4 part of boron nitride, and 0.4 to 0.5 part of zinc oxide. When in preparation, mixing the powder stocks stepwise firstly, and obtaining the finished product helical gear through compressing and manufacturing, sintering, heat treatment and surface treatment. The produced powder metallurgy helical gear has the advantages that the helical gear is good in abrasion resistance, high in strength and rigidity, good in machinability, is corrosion resistant and less susceptible to breakage, and has a long service life.

The invention discloses a deoxidizing agent for the steelmaking of an electric converter and a preparation method thereof. The deoxidizing agent is obtained by uniformly mixing raw materials according to certain parts by weight, wherein the raw materials are calcium carbide, calcium oxide, calcium difluoride, coke, magnesium oxide, zinc oxide, straw ashes, kaoline, silicone dioxide, celestite, attapulgite and barium carbonate. The deoxidizing agent is used for the steelmaking of the electric converter, does not contain aluminium and can increase the physical, mechanical and processing properties of steel; and simultaneously, the deoxidizing agent can remove gases, changes a nonmetallic inclusion and can increase the quality and the mechanical property of the steel made by the electric converter.

The invention discloses a continuous casting crystallizer casting powder for high-manganese wear-resistant steel. The continuous casting crystallizer casting powder is obtained by breaking, mixing, pulping and granulating the flowing raw materials: pre-melted materials, modifying fly ashes, vermiculite, industrial sodium carbonate, fluorite, celestites, lithium carbonate and charcoals. The casting powder comprises the following components by weight percent: 32.3-37.8% of SiO2, 31.0-40.0% of CaO, 3.0-6.0% of Al2O3, 5.5-7.5% of Li2O, 10.5-18.5% of Na2O, 4.5-6.5% of TC, 5.0-6.8% of SrSO4, smaller than or equal to 2% of K2O, smaller than or equal to 1% of MnO2 and other minor components. According to the continuous casting crystallizer casting powder, the fly ashes are adopted for modifying, the dispersibility is improved, the superficial area is increased, furthermore, the heat insulation and the flowing property are promoted, and the nano ore powders also play the role of purifying molten steel and absorbing the impurities in the molten steel.

The invention relates to a concrete repairing agent for a bridge pavement. The concrete repairing agent is prepared from the following raw materials in parts by weight: 10 parts of szaibelyite, 7 parts of forsterite, 11 parts of celestite, 3 parts of zinc hydroxide, 75 parts of ordinary Portland cement, 1.5 parts of a polycarboxylate high-performance water reducer, 2 parts of methyl benzotriazole, 6 parts of hydroxypropyl methyl cellulose, 4 parts of annular polydimethylsiloxane, 5 parts of triisopropanolamine and 42 parts of water. The repairing agent is prepared from the polycarboxylate high-performance water reducer, 42.5 ordinary Portland cement, compound active powder which is prepared from szaibelyite, forsterite, celestite and zinc hydroxide and an additive which is prepared from methylbenzotriazole, hydroxypropyl methyl cellulose, annular polydimethylsiloxane and triisopropanolamine. The repairing agent provided by the invention has relatively high strength and toughness, and is hardly corroded, excellent in anti-scouring performance and very suitable for repairing the concrete pavement.

The preparation method of catalyst carrier for synthesizing 4-methyl pentene-1 includes the following steps: adding graphite or carbon black and celestine powder in alkali metal carbonate, in which the added quantity of graphite or carbon black is 0.1-5% of weight of alkali metal carbonate and the added quantity of celestine powder is 0.1-10% of the weight of alkali metal carbonate, tabletting, pulverizing, screening and roasting by introducing air at 100-600 deg.C.

The invention discloses a high-refractive-index glass micro-beads for a reflective film and a preparation method thereof, wherein the glass micro-beads are prepared from the following raw materials in parts by weight: 27-34 parts of datholite, 16-29 parts of celestine, 5-8 parts of potassium tartrate, 8-12 parts of molybdenum oxide, 23-37 parts of apophyllite, 18-32 parts of titanaugite, 12-18 parts of barium carbonate, 4-7 parts of sodium hydrogen sulfite, 6-9 parts of a petroleum coke powder, 20-30 parts of waste molding sand, 14-22 parts of laterite, 4-6 parts of sodium sulphate anhydrous, and 7-10 parts of an additive. With datholite, celestine, apophyllite, titanaugite and waste molding sand as the main raw materials, and with addition of a right amount of molybdenum oxide, potassium tartrate, barium carbonate and other raw materials, the prepared glass micro-beads also have relatively high refractive index reaching 1.95 or more while having excellent mechanical properties and excellent aging resistance, and can be widely used in preparation of the reflective film.

The invention discloses a barite or celestite raw ore grinding process and equipment. The equipment comprises a rack and a case, wherein the top of the rack is fixedly connected with the bottom of the case; a feeding mechanism is arranged at the top of the case; a feeding frame is arranged at the top of the feeding mechanism; a crushing mechanism is arranged in the case; and a discharging mechanism is arranged in the rack. According to the barite or celestite raw ore grinding process and equipment, two transmission gears III rotate in opposite directions, so that two crushing rollers III rotate in opposite directions, and two crushing rollers I, two crushing rollers II and two crushing rollers III rotate in opposite directions; and crushing gaps with different sizes are reserved among the two crushing rollers I, the two crushing rollers II and the two crushing rollers III, so that after celestite is crushed for three times, powder with small and uniform particles can be obtained, and a barite or celestite raw ore powder product meeting the production requirements of subsequent processing and extraction is obtained.

The invention discloses a wear-resistant high-hardness ceramic and a processing technology thereof, wherein the wear-resistant high-hardness ceramic comprises the following raw materials in parts by weight: 13-16 parts of aluminum hydroxide, 21-26 parts of polycrystalline silicon, 33-42 parts of iron oxide, 35-42 parts of celestite, 12-15 parts of graphite, 15-17 parts of indium, 20-55 parts of aluminum oxide, 14-29 parts of porcelain powder, 8-15 parts of feldspar, 4-7 parts of clay, 5-10 parts of Suzhou soil, 9-18 parts of zirconium oxide, 3-6 parts of zinc oxide, 2-4 parts of magnesium carbonate, 1-2 parts of rock crystal, and 2.4-4.7 parts of spodumene. According to the invention, by adding zirconium oxide into the formula, the whole ceramic has advantages of high toughness, high bending strength, high wear resistance, excellent heat insulation performance, thermal expansion coefficient close to the thermal expansion coefficient of steel, and the like, can meet a large number of industrial requirements, has wide application range compared with common ceramics, is suitable for severe use environments, and is simple in whole processing method, low in processing method cost and worthy of popularization.

The invention relates to high-performance building ceramic. The high-performance building ceramic is prepared from the following raw materials in parts by weight: 9-15 parts of barium titanate, 6-10 parts of silicon oxide, 5-9 parts of polyacrylamide, 7-9 parts of clay, 6-8 parts of boron nitride, 4-9 parts of isopropyl alcohol, 6-11 parts of polyvinyl butyral, 5-8 parts of polyethylene glycol, 6-10 parts of R-140 epoxy resin, 3-6 parts of cerium oxide, 8-15 parts of niobium hydroxide, 6-11 parts of silicon carbonate, 5-10 parts of diethylenetriamine, 1-3 parts of titanium oxide, 2-7 parts of aluminum oxide, 3-8 parts of hydroxyalkylamide, 4-11 parts of diopside, 5-12 parts of linear low density polyethylene, 3-6 parts of celestite and 6-11 parts of magnesite. The high-performance building ceramic has beneficial effect of good hydrophobicity as well as good hardness, is porous and can be widely used in the construction industry.

The invention relates to the technical field of beneficiation processes, and particularly discloses a beneficiation process for resource utilization of low-grade celestite, which comprises the following steps: step 1, crushing raw ore: crushing the raw ore to obtain fine particles with the diameter of less than 4mm; step 2, acid pickling: carrying out acid pickling on the fine particles obtained in the step 1 by adopting hydrochloric acid; step 3, tail gas absorption: introducing gas generated in the pickling process into an alkaline solution for absorption; step 4, primary separation: separating solid and liquid generated after acid pickling; step 5, neutralizing; step 6, heating and removing impurities: heating the solution obtained in the step 5, and adding quick lime; step 7, secondaryseparation: separating the solid and the liquid obtained in the step 6; step 8, cleaning celestite; and 9, cleaning silt. According to the scheme, the problem that in the prior art, wastewater, wastegas and waste residues pollute the environment in the beneficiation process of low-grade celestite is solved.

The invention relates to a drilling fluid weighting agent and a preparation method thereof, and belongs to the technical field of oil extraction. The weighting agent comprises the following components by weight: 60-80 parts of bauxite, 0.5-2 parts of lapis lazuli, 1-1.5 parts of monazite, 10-15 parts of silicon micro powder, 0.08-0.2 part of cetyl ethyl hexanoate, 0.2-0.45 part of polyoxyethylene(20) sorbitan monolaurate, 0.5-2 parts of a dispersant, 0.5-1 part of modified attapulgite and 20 to 30 parts of water. The preparation method of the drilling fluid weighting agent is simple, the prepared drilling fluid weighting agent is can improve the stability of the structural properties of mud, has good suspension stability, and can avoid the precipitation problem of a common weighting agent, at the same time, the drilling fluid weighting agent solid product can be directly applied to oil base mud weighting, can maintain for 45 days at high temperature, is far more surpass the common weighting agent in the prior art which can only maintain for 7 days, and is easy in popularization and application.

The invention discloses a wood-plastic composite section which comprises the following raw materials in percentage by weight: 40-50% of PVC (Polyvinyl Chloride), 0.1-1% of a foaming agent, 0.1-3% of acoupling agent, 0.1-3% of an antistatic agent, 0.1-3% of celestite and 40-60% of wood flour. The wood-plastic composite section disclosed by the invention has the characteristics of being mildew-proof, weather-resistant and antistatic.

The invention provides application of a metallurgical surfactant, belonging to the field of metallurgical surfactants. The application based on the metallurgical surfactant comprises the metallurgical surfactant, water glass, terpenic oil and an application method. The application method comprises the following steps: after celestite ore is smashed, adding water for size mixing to form flotation pulp; adding the metallurgical surfactant and the terpenic oil into the flotation pulp for foaming, and performing primary roughing through a flotation process; after primary roughing is carried out, adding the metallurgical surfactant into the flotation pulp again, and conducting primary scavenging through a flotation process; and after primary scavenging, subjecting beneficiation pulp to concentration twice to three times through a flotation process, wherein during each time of concentration, different amounts of water glass are sequentially added into the flotation pulp to serve as inhibitors. When the metallurgical surfactant is used as a celestite ore flotation collecting agent, the celestite ore collecting capacity of the metallurgical surfactant at a low temperature is high, selectivity is good, the grade and the recovery rate of the celestite ore are improved, and good application and popularization value is achieved.

A high-adhesion ceramic grinding wheel comprises, by weight, 6-10 parts of high-temperature-resistant adhesives, 8-14 parts of ammonium ferrous sulfate, 6-11 parts of glycerol trioleate, 3-5 parts of boric acid, 6-10 parts of silicon carbide, 7-9 parts of steel powder, 1-4 parts of ferric chloride, 9-16 parts of microcrystal ceramic abrasive, 2-5 parts of wetting agent, 6-11 parts of celestite, 3-11 parts of oxidized polyethylene wax, 2.5-6 parts of chisel tool steel powder, 6-9 parts of calcium carbonate, 1-4 parts of calcium oxide, 9-12 parts of titanium dioxide and 2.3-5 parts of copper oxide. The high-adhesion ceramic grinding wheel has the advantages that the ceramic grinding wheel is good in adhesion, particles are less prone to falling, and grinded workpieces are high in quality and glossiness.

Aiming at the technical problems in the prior art, the invention provides a mineral crystal composition capable of adjusting uric acid. The composition is composed of the following components in partsby weight: 15 to 20 parts of red marble; 20 to 30 parts of Longjiang stone; 10 to 15 parts of celestite; 10 to 15 parts of dolomite; and 10 to 15 parts of potassium feldspar. The composition can reduce the uric acid content in a human body, has no side effects, and can further improve the treatment speed.

The invention discloses a nano aluminum oxide water-purifying agent and a preparation method thereof. The nano aluminum oxide water-purifying agent is made from the following materials according to parts by weight: 2-6 parts of nano aluminum oxide, 20-40 parts of medical stone, 5-15 parts of celestite, 25-40 parts of zeolite, 10-25 parts of perlite, and 20-40 parts of wood charcoal. The nano aluminum oxide water-purifying agent has high adsorbing capacity, can adsorb toxic harmful substances in water, such as heavy metal, remove peculiar odor in water and reduce the content of harmful substances in water, and can release various minerals and trace elements good for the growth of fry while purifying water since the materials are rich in minerals, thus helping the fry to grow healthily and quickly.

The invention belongs to the field of strontium hydroxide preparation, and particularly relates to a method for producing strontium hydroxide and co-producing sodium sulfide, which comprises the following steps: (1) mixing celestite powder and pulverized coal, conducting roasting at high temperature, conducting leaching with hot water, and conducting filtering to obtain yellow water; (2) adding sodium hydroxide into the yellow water, and after the reaction is finished, carrying out solid-liquid separation to obtain strontium hydroxide octahydrate and first filtrate; (3) concentrating the first filtrate, conducting filtering, adding sodium hydroxide into the concentrated filtrate, and after the reaction is finished, carrying out solid-liquid separation to obtain strontium hydroxide octahydrate and second filtrate; and (4) adding a precipitant into the second filtrate, filtering out a precipitate, and conducting heating, evaporating and concentrating to obtain a sodium sulfide product. Compared with a conventional preparation method of strontium hydroxide octahydrate, the preparation method disclosed by the invention has the advantages of short process flow and low production cost.

The invention discloses a steelmaking deoxidizer. The steelmaking deoxidizer comprises the following raw materials of, by weight, 35%-45% of silicon, 4%-6% of strontium and the balance iron. A preparation method of the steelmaking deoxidizer comprises the following steps of (1), weighing quartz stone, celestite and iron filings by weight; and (2), feeding the iron filings, the quartz stone and thecelestite in sequence, heating to completely melt, cooling, discharging and crushing to obtain the steelmaking deoxidizer. A use method of the steelmaking deoxidizer comprises the steps of (1), smelting molten steel to 1500-1700 DEG C, and standing at constant temperature for 3-5 minutes; (2), adding a deslagging agent to remove scums, and then adding the steelmaking deoxidizer to stand for 3-5 minutes; and (3), adding the deslagging agent again to remove the scums. The steelmaking deoxidizer is thorough in deoxidation, carbides can be formed into equiaxed crystals by simple one-time precipitation deoxidation, inclusions are spheroidized, and crystal grains of steel are refined, so that the thermal fatigue performance of a material is greatly improved, meanwhile, the smoke dust is less, and thus the steelmaking deoxidizer is environmentally friendly.

The invention discloses a multi-effect biofertilizer, which comprises the following raw materials in parts by weight: 6-11 parts of potassium chloride, 4-9 parts of diammonium phosphate, 1-3 parts of copper sulfate, 2.5-6 parts of celestite powder, 3-5 parts of earthworm cast, 1.2-3 parts of potato straws, 2.3-4.8 parts of gypsum powder, 3.5-8 parts of pig manure, 1.3-3.2 parts of wheat bran, 0.6-1.3 parts of egg shell meal, 1.3-2.8 parts of ferrous sulfate, 1.5-4 parts of EM microbial inoculant, 1.1-2.4 parts of zinc oxide, and 1.5-3.4 parts of lactobacillus. The multi-effect biofertilizer has the beneficial effects of providing nutrients for crops, also improving the soil to restore the soil, and being incapable of causing pollution to soil, water and the like.