108 results about "Pyroxene" patented technology

The invention discloses a method for producing a microcrystalline glass-ceramics composite board with novel microcrystalline phase, which is characterized in that the composite board takes diopside-containing pyroxene as microcrystalline phase and the production method thereof comprises the steps as follows: firstly, microcrystalline glass granules are prepared; according to the weight percentage, the microcrystalline glass consist of 50-65% of SiO2, 5-25% of Al2O3, 5-20% OF CaO, 2-10% of MgO, 1-8% of K2O+NaO, 0-1% of Li2O, 0-8% of BaO, 0-8% of B2O3 and the balance of nucleating agent, clarifier and corant with the content ranging from 0 to 20%; secondly, a ceramic palette board is prepared; according to the weight percentage, the ceramic palette board comprises 66-75% of SiO2, 13-23% of Al2O3, 0.3-3% of CaO+MgO, 3-8% of K2O+Na2O and the balance of 0-2% of auxiliary raw material; finally, the raw materials are distributed, sintered and post-processed, thus gaining the finished product of the microcrystalline glass-ceramics composite board. The method has the advantages of low production cost, high product quality, good appearance effect, and the like.

The present invention relates to a glazed tile manufactured by using ceramic waste and having broken diamond sand flashing starlight on the surface, and a preparation method thereof. According to the present invention, on the base of no major change on the existing glazed tile production process, the green body formula composition, the bottom glaze clinker composition, the surface glaze clinker composition, the bottom glaze formula composition, the surface glaze formula composition, the crystallization clinker composition, the particle size optimizing, the glue formula composition, the crystallization clinker particle slurry formula composition, and process parameters for applying bottom glaze, applying surface glaze and applying crystallization clinker particle slurry are importantly adjusted and optimized, such that the glaze surface of the prepared the glazed tile product likes the matte state through being viewed under the natural light, the slight concave-convex feeling is provided when touching through finger, the glaze surface is smooth and likes jade, the glaze surface crystal such as small quartz grains, pyroxene particles, fine mica sheets and the like in the granulated sugar-like aplite can emit broken diamond sand flashing starlight under side light or light irradiation so as to provide the poetry and painting feeling, the printing pattern texture is delicate, the stimulated stone is vivid, the visual effect is unique, and the whole art sense is strong; and the technology has strong universal property, and is easy to spread in the industry.

The invention discloses ingredients, manufacturing techniques and technological parameters of a novel microcrystal glass ceramic composite board. The novel microcrystal glass ceramic composite board is characterized in that the ingredients contain no zinc oxide. The ingredients comprise 50-65% of SiO2, 5-20% of Al2O3, 5-20% of CaO, 5-20% of MgO, 2-8% of K2O+Na2O, 0-1% Li2O, 2-8% of NaO, 3-8% B2O3 and balanced 5-20% of clarifying agent, nucleation agent and coloring agent. A pyroxene microcrystal phase is separated out from glass ceramics, the devitrification breaks through particle boundaries, and crystallization textures in various patterns are grown. The novel microcrystal glass ceramic composite board achieves purposes of low cost and high decorative art levels.

The invention discloses a production method for continuous basalt fiber. The production method is characterized by comprising the following steps: 1) material selection, i.e., comprehensive determination of raw basalt materials for production of the continuous basalt fiber based on the chemical components and mineral components of basalt: analyzing the content of SiO2 in the chemical components of basalt, selecting basalt with SiO2 content of 48 to 63% and with saturated or oversaturated SiO2, analyzing the mineral component of basalt, removing basalt containing olivine and selecting basalt with mineral components consisting of, by weight, 15 to 27% of quartz, 10 to 18% of orthoclase, 30 to 50% of plagioclase or 45 to 60% of plagioclase, and 15 to 30% of pyroxene; and 2) fusing and fiber molding of the selected raw basalt materials so as to obtain the continuous basalt fiber. The production method provided by the invention can substantially improve accuracy in basalt selection and optimize the fusing process and fiber molding process of a basalt melt, enables the basalt melt to be easy to homogenize and provides effective bases and criteria for production of the continuous basalt fiber.

The light-color cast iron paint with high aluminum polycrystalline composite aggregate consists of high alumina powder with 70-85 wt% Al2O3 20-40 wt%, mullite powder 10-25 wt%, magnesia powder 3-10 wt%, superfine flux of pyroxene or La/Sr RE of 100-500 micron granularity 6-10 wt%, crystal nucleus agent of nanometer level Al, Zr or Cr powder 0.5-3.5 wt%, organic adhesive rosin or resin 1-3 wt%, bentonite as suspending agent 1-6 wt% and solvent of ethanol or isopropanol 30-40 wt% mixed together. The paint of the present invention is coated to cast iron parts for machine tool, and can obtain surface quality higher than that of black graphite paint and improve operation environment.

The invention relates to desulfurized gypsum and iron tailings ceramsite and a preparation method thereof. The preparation method comprises the following steps: pretreatment of raw materials, uniform mixing of burdens, pelletizing, drying, preheating, calcination, and cooling. The raw materials comprise 10-20 parts of desulfurized gypsum, 50-60 parts of iron tailings, 20-30 parts of fly ash, and 0-6 parts of coal dust; the main phases of the prepared ceramsite are diopside (CaMgSi2O6), aluminum calcium silicate (CaAl2Si2O8), anorthite (CaMgSi2O6) and pyroxene (Ca4Mg3FeSi8O24); and the diopside and anorthite crystals are in a plate shape or a plate cylindrical shape. According to the invention, burden proportion of the desulfurized gypsum is increased, resource utilization rate is increased; at the same time, the ceramsite intensity is increased, the ceramsite water absorption rate is reduced, the preparation method is simple, operation is convenient, and production cost is low.

The invention discloses medium-temperature matte glaze. The medium-temperature matte glaze is prepared from the following components: potassium feldspar powder, quartz powder, calcite powder, calcinedtalc powder, calcined zinc oxide, calcined bone carbon powder, calcined alumina, kaolin and a colorant. A preparation method of the medium-temperature matte glaze comprises the following steps: materials are prepared in accordance with the components in parts by mass, wet ball milling is preformed, and glaze is obtained; the glaze is treated by a 120-mesh sieve after being discharged from a ballmill, glaze slurry is obtained, and water and an electrolyte are added to adjust the concentration and thixotropy of the glaze slurry respectively; a glaze body is immersed in the glaze slurry and dried and enters a roller kiln to be sintered. According to the medium-temperature matte glaze, dense pyroxene crystals are prepared from the raw materials under the condition of medium temperature to generate matt; besides, phosphorus pentoxide introduced by adding the bone carbon powder can form a silicate glass phase and a phosphate glass phase with silicon dioxide and metal oxide, the two phasesare not soluble mutually and have different dissolving capacities to the colorant, color differences are produced, and ceramic products of various colors can be obtained.

The invention provides a process for extracting lithium from lithium pyroxene concentrate by using fluorine chemistry. The process comprises the following steps of: firstly, uniformly mixing raw materials, such as alpha-lithium pyroxene concentrate powder, an additive and sulfuric acid according to weight ratio of 1:(0.1-2):(0.5-5); secondly, feeding the uniformly-mixed raw materials into a reactor and finishing the reaction and timely extracting gas generated in the reaction process; thirdly, leaching reaction slag retained in the reactor with water and carrying out solid-liquid separation on the reaction slag to obtain a sulfate solution and remove ionic impurities in the solution, such as potassium, sodium, aluminum, magnesium, calcium, ferrum and the like; and fourthly, after the impurities are filtered, concentrating residual solution to obtain a precipitation containing lithium ions, filtering to obtain a rough lithium salt product and producing refined lithium salt according to the requirement. The process disclosed by the invention has the advantages of low reaction temperature, low production energy consumption and high lithium extraction rate; the lithium can be directly extracted from alpha-lithium pyroxene without crystal form transformation; and various valuable components of the lithium pyroxene can be integrally utilized while the lithium salt is produced.

The present invention provides a negative electrode for a secondary battery having a higher capacity than conventional batteries and the secondary battery having the negative electrode incorporated therein. The negative electrode for the secondary battery includes a silicate having a pyroxene structure and represented by a general formula A_pM_2-pX₂O₆, wherein “A” represents at least one species selected from among a group of Na, Ca, Fe, Zn, Mn and Mg, “M” represents at least one species selected from among a group of transition metal elements, Al and Mg, where one of the transition metal elements being an indispensable element of “M”, “A” and “M” represent same elements or different elements, “p” represents a number satisfying 0<p<2, “X₂” represents Si₂ or Al_qSi_2-q, and “q” represents a number satisfying 0<q<2.

The embodiments of the invention are directed to a synthetic ceramic comprising pyroxene-containing crystalline phase, a clast, and a glass phase, wherein at least a portion of the synthetic ceramic is plastically deformable in a certain temperature range. Other embodiments of the invention relate to a method of making a synthetic ceramic, comprising heating a green ceramic material to 900-1400° C., to a temperature sufficient to initiate partial melting of at least a portion of the green ceramic material, transferring the heated green ceramic material to a press, pressing the heated green ceramic material in a die at 1,000 to 10,000 psi, and transferring the heated, pressed green ceramic material to a furnace for cooling to form the synthetic ceramic.

The invention relates to the technical field of building materials and discloses a novel microcrystalline glass ceramic composite board and a preparation method thereof. Calcium oxide and magnesium oxide are introduced into microcrystalline glass and simultaneously a small amount of zinc oxide is added. The microcrystalline glass precipitates a pyroxene crystalline phase and simultaneously remains a crystalline phase of zinc silicate, the crystallization breaks through the grain boundary, and crystallized textures with various patterns are grown. The cost is reduced, and simultaneously air holes in the surface of the microcrystalline glass ceramic composite board are easily controlled and greatly reduced by utilizing the characteristics of large surface tension and low viscosity of the zinc oxide, so that the defect of poor exhausting property of the microcrystalline glass adopting pyroxene as the crystalline phase is avoided; since the novel microcrystalline glass ceramic composite board adopts once firing, the firing period can be shortened to be 60 minutes, the bottleneck of twice firing and long firing period in the traditional process is broken through, the energy consumption is greatly reduced, and the current low-carbon and environment-friendly slogans are responded.

The invention relates to the technical field of synthesis of inorganic nonmetal materials, and aims at providing a method for compounding pyroxene-type microcrystalline glass materials by means of solid waste such as ferrochrome slags and waste glass, limestone, sodium carbonate and fluorite. The raw materials used for compounding mainly adopt the solid waste, and the ferrochrome slags belong to waste with severe toxicity and need to be treated individually. The waste microcrystalline glass materials are compounded only by means of normal pressed sintering, all performances meet needs of industrial production, the problem that the environment is polluted due to the fact that a large amount of solid waste is stacked is solved, the compounded waste slag type microcrystalline glass materials can be applied to building decoration materials, the method for compounding the pyroxene-type microcrystalline glass materials by means of the solid waste such as the ferrochrome slags and the waste glass, the limestone, the sodium carbonate and the fluorite accords with the industrial policy of circular economy advocated by the nation, and higher economic value and environmental significance are achieved.

The invention discloses a red porcelain ceramic product which is prepared from the following raw materials and components in parts by weight: 50-80 parts of red porcelain mud, 30-40 parts of argil, 20-30 parts of mica, 30-35 parts of feldspar powder, 25-30 parts of quartz powder, 20-25 parts of calcite powder, 20-25 parts of pyroxene powder, 15-20 parts of zeolite powder, 5-10 parts of montmorillonite powder, 8-10 parts of limonite powder, 3-5 parts of aluminum oxide, 2-5 parts of water reducing agents, 2-3 parts of magnesium oxide, 2-3 parts of copper oxide, 5-10 parts of boric acid, 30-35 parts of purple soil, 5-8 parts of titanium oxide, 2-5 parts of sodium metasilicate pentahydrate and 6-8 parts of polyvinyl alcohol. The red porcelain ceramic product disclosed by the invention has the advantages of wide raw material sources, material cost saving, good quality of a produced product, low cost, high benefit, high heat stability and suitability for cold and hot environments, and meets the requirement for various indices.

The invention discloses a method for recovering nepheline ore in nepheline ore tailings. The method includes the steps that the nepheline ore tailings are smashed and ground to obtain tailing primary pulp; a hydrocyclone is used for classifying the tailing primary pulp; the tailing primary pulp classified by the hydrocyclone is concentrated, so that the concentration of the tailing primary pulp is made to at least reach 3.5%; iron removal and pyroxene removal treatment is carried out on the concentrated tailing primary pulp by the adoption of wet-type low-intensity magnetic separation and at least one level of high-gradient magnetic separation; flocculating agents are added to the tailing primary pulp subjected to iron removal and pyroxene removal treatment in a stirring mode; the tailing primary pulp with the added flocculating agents is conveyed to a settling pond through a pipeline to be subjected to standing treatment; supernatant in the settling pond is discharged in an overflowing mode, and pulp flocculating constituents are fed into a filter press to be filter-pressed into filter cakes; and the filter cakes fall freely under the effect of gravity, and are dispersed under an impact effect and then conveyed to a dry storage yard through a vehicle to be recovered.

The invention provides a porous ceramic material preparation method with intrinsic pore formation and belongs to the technical field of solid waste comprehensive utilization. The method comprises thefollowing steps of mixing different raw materials according to the mass percentage without adding a pore-forming agent, processing a mixture into a green body according to the traditional ceramic preparation method, and performing drying and sintering to acquire a porous ceramic material. The raw materials do not include a pyroxene crystal phase; a chemical composition of the ceramic material prepared after mixing of the raw materials is as follows: SiO2 is larger than 35 percent and smaller than 65 percent, CaO is larger than 10 percent and smaller than 30 percent, Al2O3 is larger than 3 percent and smaller than 31 percent, MgO is larger than 3 percent and smaller than 20 percent, Fe2O3 is larger than 0 percent and smaller than 10 percent, and Na2O+K2O is larger than 0 percent and smallerthan 3 percent; and the sintering temperature is in a range from 1020 DEG C to 1260 DEG C. The porous ceramic material preparation method provided by the invention is simple in technology and liableto control and is an effective way of producing the porous ceramic material; and the porous ceramic material can be used as functional materials with a function of adsorption or filtering, various carrier materials or functional building materials and is widely applied.

The invention belongs to the ilmenite flotation technology, and particularly relates to a pyroxene peridotite type ilmenite depressing agent and a preparation method of the pyroxene peridotite type ilmenite depressing agent. The preparation method of the pyroxene peridotite type ilmenite depressing agent comprises the step of carrying out oscillation, stir and curing on a mixed solution formed by sodium silicate, ferric nitrate and sulfuric acid to obtain the pyroxene peridotite type ilmenite depressing agent, wherein oscillation, stir and curing are carried out for 30-40min. The obtained pyroxene peridotite type ilmenite depressing agent comprises, by weight, 5-15 parts of the sodium silicate, 5-15 parts of the ferric nitrate and 1-10 parts of the sulfuric acid. The pyroxene peridotite type ilmenite depressing agent obtained through the preparation method has a good selective depressing effect on olivine and pyroxene, and has extremely important significance in obtaining of good technical indexes of titanium flotation of pyroxene peridotite type ilmenite.

The invention discloses a plastic inner film of a rice packaging bag, and relates to the technical field of plastic packaging materials. The plastic inner film of the rice packaging bag is prepared from the following raw materials in parts by weight: 35-40 parts of low-density polyethylene, 10-13 parts of polyester resin, 6-10 parts of carnauba wax, 6-10 parts of polycarbonate, 5-8 parts of montmorillonite, 4-6 parts of water pyroxene powder, 4-6 parts of wood powder, 3-5 parts of rosin glycerin ester, 3-5 parts of dampproof and insect-resistant agent, 2-3 parts of titanate coupling agent, 2-3 parts of polyethylene glycol 400, 1-2 parts of sldium lauryl sulfate, 1-2 parts of sodium abietate and 0.5-1 part of nano rubber powder. The plastic inner film of the rice packaging bag has an excellent preservation effect, and is capable of effectively preventing rice from mildewing and breeding insects, thus prolonging the shelf life of rice.

The invention belongs to the technical field of silicate materials and ceramics, and in particular relates to a method for preparing a stony glazed vessel by using ophiolite. The method comprises basic process steps of saw-cutting moulding, grinding and splicing, bottom glaze coating, surface glaze spraying, sintering furnace transmutation and polishing glaze sealing and auxiliary processes of grinding and glaze drying, the stony glazed vessel or device is prepared from the ophiolite as a matrix mineral by the method. Olivine, serpentine and pyroxene minerals with good appearance and transparency are used as a stony matrix, the purification and the electromagnetic performance both can be kept, the difficult-to-solve problem of cracks of the stony glazed vessel can be solved by surface glazing, filling of silicic acid cement gum in joint cracks and the micro-melting effect of high-temperature sintering, and by use of the mineral micro-melting process, wettability and color of the stony glazed vessel can be changed.

The invention relates to a preparation method of a mineral fiber raw material and the mineral fiber raw material prepared by the method, and the method comprises the following steps of: (1) mixing feldspar and pyroxene particles according to a certain proportion, so that the mass fraction of feldspar is 50-70%, the mass fraction of pyroxene is 25-35%, the total mass fraction of feldspar and pyroxene is more than 85%, and the mass fraction of associated minerals is not more than 15%; (2) putting the mixture into a platinum crucible and heating and melting at high temperature to obtain a uniformsilicate melt; and (3) taking out the melt from the furnace, placing the melt in air and naturally cooling to obtain an amorphous silicate solid product, and crushing the solid to obtain the mineralfiber raw material.

The invention discloses a nanometer ore coal combustion-supporting additive, a preparation method thereof and application of the additive as renewable energy source of coal. The additive comprises the following raw material ores: 2 to 25 weight portions of saltpeter, 5 to 25 weight portions of marble, 5 to 25 weight portions of talcum, 5 to 20 weight portions of feldspar, 5 to 25 weight portions of picrite, and 1 to 10 weight portions of pyrolusite. The ores are subject to ultrafine grinding and are prepared into a coal combustion-supporting agent according to certain mixture ratio, and then the combustion-supporting agent is prepared into complex coal with coal gangue and coal according to the mixture ratio. The additive can ensure that 30 to 50 percent of standard coal is saved in the power generation industry and the cement industry, can reduce the discharge amount of sulfur dioxide and smoke dust, also reduce the environmental pollution of the coal gangue caused by land occupation spontaneous combustion at the same time, has good social benefit and economical benefit, meets the requirements of energy conservation, environmental protection and emission reduction, and is worthy to be promoted.

The present invention is concerned with a method for the extraction of magnesium from magnesium-containing materials such as magnesite, dolomite and silicates materials like serpentine residues, products from the amphibole or pyroxene group. The magnesium-containing material is first leached in at least one leaching reactor, and subsequently submitted to a series of neutralizing steps in separate reactors under controlled pH and oxydo-reduction potentials. The slurry produced is filtered to produce a substantially pure magnesium chloride solution containing less than 1 ppm of each contaminant present therein.

The invention discloses a separation method of associated rich fluorite and low-grade cassiterite in tungsten flotation tailings. The separation method comprises the steps of directly feeding tungsten flotation tailings containing 16-25% of fluorite CaF2 and 0.1-0.3% of tin SnO2 into a flotation column for rough fluorite flotation, and separating fluorite from calcite and iron-containing pyroxene, so as to obtain rough fluorite concentrate and tin-containing tailings subjected to derichment; carrying out precise flotation on the rough fluorite concentrate for five times, so as to obtain a fluorite concentrate product and fluorite flotation tailings; and carrying out two-stage sorting on the tin-containing tailings subjected to derichment, and carrying out a concentrated back washing shaking table gravity separation technology on secondary concentrate, so as to obtain a rough tin concentrate product and tin flotation tailings. According to the separation method, the technological process is simple, the loss of fluorite and cassiterite in overflow water can be reduced, and the comprehensive recycling rate of fluorite and cassiterite is increased.

The invention discloses a low-thermal-conductivity white ceramic product and a preparation method thereof. The low-thermal-conductivity white ceramic product comprises a ceramic green body and a glazelayer, the glaze layer is attached to the outer surface of the ceramic body; the ceramic green body is prepared from the following raw materials in parts by weight: 30-45 parts of kaolin, 15-20 partsof a quartz material, 5-10 parts of dolomite clay, 4-8 parts of albite, 1-5 parts of limestone, 0.1-3 parts of lithium pyroxene, 0.1-1.5 parts of a binder, 0.05-1 part of a foaming agent and 0.01-1 part of a foam stabilizer; and the glaze layer is prepared from the following raw materials in parts by weight: 30-45 parts of kaolin, 4-8 parts of yttrium oxide, 4-8 parts of lanthanum oxide, 10-15 parts of a whitening complexing agent, 5-10 parts of a fluxing agent and 2-5 parts of a dispersing agent. The low-thermal-conductivity white ceramic product is high in porosity, small in heat conductivity coefficient, excellent in heat insulation and high-temperature resistance, high in whiteness and high in breaking strength.