366 results about "Aluminosilicate" patented technology

The invention discloses a red-mud-based multi-element solid waste cementing material as well as a preparation method and application thereof, and belongs to the technical field of building materials. The red-mud-based multi-element solid waste cementing material comprises the following components in parts by mass: 30-40 parts of red mud, 5-15 parts of fly ash, 10-20 parts of superfine slag powder, 30 parts of Portland cement, 4 parts of dihydrate gypsum and 2-25 parts of an alkali activator, alkaline components of the red mud are utilized to excite potential activity of the superfine slag powder and the fly ash, the additional alkaline activator excites potential activity in the red mud, and meanwhile, several industrial solid wastes and the Portland cement generate gel substances such as hydrated aluminosilicate under the synergistic effect, so that the mechanical property of the cement is improved; the building material meeting the strength requirement is provided while a large amount of red mud is consumed.

The invention relates to the technical field of solid waste treatment, in particular to a cementing material as well as a preparation method and application thereof. The invention provides a preparation method of a cementing material, which comprises the following steps: S1, adding water into waste incineration fly ash, electrolytic manganese residue and carbide slag, and carrying out mechanical activation to obtain mixed slurry; s2, after the mixed slurry is subjected to pouring forming, curing is conducted, and a cementing material is obtained; the doping amount of the carbide slag accounts for 5-10 wt% of the total mass of the waste incineration fly ash, the electrolytic manganese slag and the carbide slag solid. According to the method, the waste incineration fly ash, the electrolytic manganese residues and the carbide slag are subjected to mechanical activation and synergistic treatment, self-cementation solidification is achieved in an alkaline environment provided by the carbide slag by utilizing the complementary effect of potential gelation activity of aluminosilicate in the electrolytic manganese residues and calcium-rich substances in the waste incineration fly ash, traditional excitants such as cement and lime do not need to be additionally added, and the cost is reduced. The dependence on additional raw materials is obviously reduced, and an effective solution is provided for recycling of a large amount of solid wastes.

Pumpable slurry compositions including at least one aluminosilicate additive and optional pozzolanic cement additives and methods including the pumpable slurry compositions improve development of compressive strengths in the pumpable cement slurry compositions. The methods utilize one or more pumpable cement slurry compositions including at least one cement component, water, at least one first aluminosilicate additive, at least one optional second aluminosilicate additive, and one or more optional pozzolanic additives, where the at least one first aluminosilicate additive has an amorphous phase of greater than about 50% and a weight ratio of silica oxide to aluminum oxide of about 1.0 to about 2.5, and the at least one optional second aluminosilicate additive has a weight ratio of silica oxide to aluminum oxide of about 1.7 to about 3.3.

The invention provides a mixed type shield synchronous grouting material and a grouting process, and relates to the technical field of building materials, the grouting material is composed of fast hydration Portland cement, activated aluminosilicate minerals, nanometer silicon powder, bentonite, a reversible thixotropic polymer, a delayed hydration agent, coated calcium aluminate fast setting powder and a coated silicate gel precursor. The early-stage reaction is inhibited by delaying hydration, and a controllable solidification sequence of slurry from a flowable stage, a rearrangement structure stage to a rapid solidification stage is realized by breaking a membrane under the action of temperature or pressure gradient. In the process, by monitoring the conductivity, the concentration of Ca < 2 + > / Mg < 2 + > and the temperature in real time, the adding amount of an additive and grouting parameters are automatically adjusted, so that the stable diffusivity of the material is kept and the curing speed is accelerated under different stratum conditions. The solidified body forms a C-S-H, C-A-S-H and N-A-S-H gel interpenetrating network, the permeability coefficient is low, the water dispersion resistance is high, and the shield grouting quality and the tunnel structure safety can be remarkably improved.

The invention discloses a desulfurizing agent for a cement kiln as well as a production method and application of the desulfurizing agent. The desulfurizing agent is prepared from the following raw material components in percentage by weight: 88-96 wt% of limestone; 2-6 wt% of an iron raw material; 1-6 wt% of gypsum; and 0-4 wt% of a silicon-aluminum material. The desulfurizer is produced by utilizing a kiln line of a cement enterprise, is dried and ground with raw materials according to a mass ratio of 1: 100 to 3: 100, and then is put into a cement kiln system for cement clinker production, so that the emission concentration of sulfur oxides in kiln tail flue gas produced by sulphoaluminate cement clinker can be reduced from more than 2000mg / Nm < 3 > to less than 35mg / Nm < 3 >; and for other types of cement clinker, the content of the cement clinker can be reduced from 1000 mg / Nm < 3 > or above to 35 mg / Nm < 3 > or below, the desulfurization effect is stable, and the environment-friendly emission requirement can be continuously met.

The invention relates to the field of glass, in particular to lithium-free alkali aluminosilicate glass as well as a preparation method and application thereof. According to the glass, SiO2, Al2O3, Na2O, K2O, MgO and ZrO2 serve as main components, the content of Li2O is lower than 100 ppm, a nitrate-sulfate-carbon powder composite clarifying agent is adopted, the number of bubbles and the content of residual sulfur are effectively reduced, and use of a toxic or ultraviolet absorption type clarifying agent is avoided. ZrO2 is obtained by calcining a zirconium-based metal-organic framework material and is good in dispersity, and the devitrification resistance is improved. During float forming, through micro-positive pressure, high-purity protective atmosphere and four-zone gradient temperature control, the tin penetration depth is controlled within 15 microns, and the surface tin content is smaller than or equal to 4 micrograms / cm < 2 >. The obtained glass has high light transmittance, high hardness and excellent chemical strengthening performance, and is suitable for the high-end fields of electronic display cover plates, vehicle-mounted screens, touch panels, photovoltaic substrates and the like.

The present invention aims to provide a composition with higher ability to enhance early strength development compared to conventional compositions. The present invention relates to an aluminosilicate-containing composition containing: an aluminosilicate; and a water-soluble polymer, the aluminosilicate-containing composition further containing at least one of an amine having a molecular weight of not more than 1,000 or a metal compound.

The invention relates to the technical field of roadbed materials, in particular to a composite filling material and a preparation method and application thereof. The composite filling material provided by the invention is prepared from the following raw materials in parts by weight: 18 to 26 parts of pretreated phosphogypsum, 30 to 45 parts of pretreated household garbage incineration bottom ash, 8 to 18 parts of alkaline excitation material, 6 to 20 parts of aluminum-silicon material, 5 to 25 parts of aggregate and 1 to 4 parts of sodium sulfate aqueous solution, the pretreatment of the phosphogypsum comprises lime milk aging treatment; the pretreated household garbage incineration bottom ash comprises gelation active fine powder and structural aggregate. The composite filling material formed by taking the ardealite, the household garbage incineration bottom ash, the alkaline excitation material and the aluminum-silicon material as main raw materials is high in industrial solid waste mixing amount, stable in performance and environment-friendly, reduces the pollutant leaching risk, is suitable for roadbed structures such as an embankment filling layer, a semi-rigid base layer and a flexible subbase layer, and has a wide application prospect. And the benefit is obvious.

The invention relates to a preparation method and application of an alkali-activated iron tailing geopolymer adsorbent. According to the method, an iron tailing geopolymer is prepared through an alkali activation method, that is, an aluminosilicate structure in iron tailings is destroyed in an alkali activation mode, so that silica tetrahedron and alumina tetrahedron structures of the iron tailings are reconstructed, and a geopolymer material with adsorption capacity is prepared; on the basis, a foaming agent hydrogen peroxide solution is introduced to adjust the performance, and parameters such as modulus, water cement ratio and curing temperature of the alkali activator are respectively adjusted to prepare an optimal sample. The iron tailing geopolymer adsorbent material which is high in adsorption rate and good in stability is obtained, and the effect of adsorbing residual ciprofloxacin in wastewater is remarkable.

The invention belongs to the technical field of soil amendments, and particularly relates to a saline-alkali soil biological-mineral composite amendment prepared from industrial waste and a preparation method thereof. Alkali fusion activated steel slag provides a quick-acting active calcium source, hydrothermal modification neutralized red mud forms hydrated aluminosilicate gel solid sodium, modified biochar enhances cation exchange capacity, a composite functional bacterial agent drives MICP biomineralization reaction, a quick-acting-slow-release-storage three-stage gradient improvement system is established, and the quick-acting-slow-release-storage three-stage gradient improvement effect is achieved. According to the present invention, the effects of 0-50 cm soil profile full-layer improvement and 12-24 month continuous improvement are achieved, 90 d after the modifier is applied, the soil pH value of the severe saline-alkali soil is reduced to 7.8 from 10.1, the conductivity is reduced to 3.2 dS / m from 11.5 dS / m, the sodium adsorption ratio is reduced to 11 from 42, the crop yield increase amplitude reaches 40-60%, 15-25 kg of the modifier is fixed per ton, and the industrial waste resource utilization rate gt is achieved; 90%.

The invention discloses a green process method for extracting alkali metal from composite ore, and relates to the field of metal extraction.The green process method comprises the following steps that S1, aluminosilicate composite ore containing alkali metal and ammonium carbonate are mixed and roasted, and activated clinker is obtained; s2, mixing the activated clinker with an ammonium citrate solution, carrying out a leaching reaction at 80-95 DEG C, and carrying out solid-liquid separation after the reaction to obtain a leaching solution and leaching residues; according to the green process method for extracting the alkali metal from the composite ore, through systematic coupling of a low-temperature ammonium carbonate activation-ammonium citrate complexing leaching-manganese system / ammonium phosphomolybdate specific adsorption-bipolar membrane electrodialysis closed-loop regeneration technology chain, a synergistic interaction effect is formed; the activation step significantly improves the leaching efficiency of the subsequent mild leaching agent.

The application provides a method for preparing aluminum-silicon aerogel from coal gangue and a product prepared by the method, and relates to the field of heat insulation. The method for preparing aluminum-silicon aerogel from coal gangue comprises the following steps: coal gangue activation, preparation of a precursor solution, sol-gel, impurity washing, high-temperature aging and post-treatment. The method for preparing aluminum-silicon aerogel from coal gangue does not need to extract silicon dioxide and aluminum oxide from the coal gangue respectively, can directly prepare aluminum-silicon-based aerogel from the coal gangue, effectively shields the introduction of impurities contained in the coal gangue in the process of preparing the aerogel, avoids the adverse effects of the impurities on the performance of the aerogel, and further improves the mechanical performance, stability and temperature resistance of the aluminum-silicon aerogel.

This application relates to the field of lightweight building materials technology, and particularly to acid-activated foamed materials, their preparation methods, and components. The method for preparing acid-activated foamed materials includes: chemically reacting raw materials comprising active aluminosilicates, an acid activator solution, and a gas-generating component to obtain the acid-activated foamed material; wherein the acid activator solution contains phosphoric acid and / or acidic phosphates; the gas-generating component includes materials capable of reacting with the acid activator solution and releasing gas. This chemical reaction system includes an acid activation reaction and a gas-generating reaction. The acid activation reaction generates a phosphate-based polymer material through a dissolution-condensation reaction, exhibiting a certain strength. The gas-generating reaction and the acid activation reaction are coupled in terms of reaction sites and time, and the gas-generating process is also coupled with the process of increasing the viscosity of the reaction system. Therefore, the acid-activated foamed material has a uniform and stable pore structure and possesses advantages such as low density, thermal insulation, sound insulation, low energy consumption, fire resistance, and environmental friendliness.

The disclosure relates to a modified aluminosilicate inorganic mesoporous material and a preparation method therefor. Through calcination modification of nitrate and modification of alkaline chitosan, and through the regulation of parameters such as a particle size and a specific surface area of the aluminosilicate, a concentration of a nitrate solution, a solid-to-liquid ratio of aluminosilicate particles to the nitrate solution, a calcination time, a calcination temperature, and a pH value, a mass fraction and a temperature of the chitosan solution, the modified aluminosilicate inorganic mesoporous material with a stable specific surface area ranging from 30 m2 / g to 40 m2 / g can be stably prepared. Moreover, the size of a pore channel inside the mesoporous material can be as small as sub-nanometer scale.

The invention belongs to the technical field of glass manufacturing and detection, and discloses yttrium-containing aluminosilicate glass with low liquidus temperature, a preparation method and a glass cover plate, the glass comprises SiO2, Al2O3, B2O3, Li2O, Na2O, MgO, P2O5, ZnO, TiO2, SnO2, Sb2O3, La2O3 and Y2O3, and the yttrium-containing aluminosilicate glass is obtained through melting treatment, coarse annealing and devitrification sample preparation. The glass has the elasticity modulus higher than 80 GPa and the transmittance higher than 90%, the liquidus temperature is effectively reduced by adjusting the proportion of part of materials, forming is promoted, the production requirements of a production line are met, and the prepared glass can be applied to the field of mobile phone cover plates and vehicle-mounted glass and has wide application prospects. And theoretical basis and reference value are provided for research and production of yttrium-containing aluminosilicate glass.

Provided are: a production method for a modified aluminosilicate that makes it possible to highly selectively produce a hydroquinone via a reaction between a phenol and hydrogen peroxide, with industrially advantageous conditions; a production method for a catalyst that is for producing an aromatic dihydroxide compound and that includes the modified aluminosilicate; a production method for an aromatic dihydroxide compound that uses the catalyst; and a modified aluminosilicate.　A production method for an aluminosilicate according to the present invention comprises: a first step for preparing a liquid obtained by contact between a metal compound (AL) containing aluminum and oxygen and silica in the form of a sol containing water, and obtaining an aluminosilicate in which the molar ratio (HMR) between water and silica is in a specific range; a second step for treating, with acid, the aluminosilicate obtained in the first step; a third step for performing primary firing with respect to the treated product obtained in the second step; and a fourth step for bringing into contact the primary fired product obtained in the third step and a liquid containing one or more elements selected from the group consisting of group 4 elements and group 5 elements of the periodic table, and thereafter performing drying and secondary firing. The metal compound (AL) is preferably a zeolite. The first step preferably includes a step for removing the water.

The application discloses a preparation method of MTO catalyst. The method comprises the following steps: a) treating a phosphosilicate aluminosilicate molecular sieve in a titanium acid ester-containing alcohol solution, and drying to obtain a modified molecular sieve; b) mixing the modified molecular sieve obtained in the step a), a liquid medium, a matrix material, a structure reinforcing material and a binder to form a suspension; the structure reinforcing material is ceramic fiber with a diameter of 2-6 microns and a length-diameter ratio of 1-15; c) high-speed shearing the suspension obtained in the step b), and spray drying to obtain a microsphere catalyst; and d) calcining the microsphere catalyst obtained in the step c) to obtain a finished catalyst. The catalyst solves the problems of poor catalytic performance and high abrasion index of the fluidized bed catalyst in the prior art.

The invention discloses a method for preparing a low-carbon cementing material from lithium slag. The method comprises the following steps: S1, pretreatment: drying, crushing and screening the lithium slag to obtain a pretreated raw material; s2, in-situ synergistic modification and activation: mixing the pretreated raw materials with an auxiliary agent and a modifier, and then carrying out in-situ synergistic modification and activation to obtain a modified activated material; the use amount of the auxiliary agent is 5%-15% of the mass of the pretreated raw materials, and the use amount of the modifier is 5%-30% of the mass of the pretreated raw materials; s3, preparation of a cementing material: mixing the modified activated material with auxiliary materials, and curing to obtain the low-carbon cementing material, wherein the dosage of the auxiliary material is 30-60% of the mass of the modified activated material. According to the method, the phase change of the lithium slag is induced by fully utilizing an in-situ synergistic modification activation technology, and the activity of the lithium slag is effectively improved through the synergistic effect of directional depolymerization of inert aluminosilicate, synchronous excitation of associated elements, particle size refining and thermal stability regulation and control.

The present invention relates to a porous article comprising inorganic particles comprising from 3 to 35 wt.-%, based on the total amount of the porous article, inorganic fillers with anisotropic shape, at least one surfactant and a geopolymer obtained from polycondensation of repeating units comprising silicate ions and aluminate ions, which are derived from the inorganic binder comprising aluminosilicates in the presence of an activator comprising a water-soluble inorganic silicate, wherein the pores of the porous article having a mean pore size of not more than 2.0 mm; a process for producing said porous article; and the use of said porous article for building insulation.

This invention relates to a long-life aluminosilicate refractory material for glass kilns, belonging to the technical field of refractory materials. The long-life aluminosilicate refractory material for glass kilns of this invention comprises, by weight percentage: 50-75 wt% bauxite clinker, with an Al2O3 content ≥85 wt%; 15-30 wt% silicon carbide powder, with a SiC content ≥98 wt%; 3-10 wt% boron nitride micropowder, with a BN content ≥99 wt%; and 2-10 wt% albite. The additives are sodium carboxymethyl cellulose and aluminum orthophosphate sol, with the sodium carboxymethyl cellulose used at 0.3-0.8 wt% of the total raw material weight, and the aluminum orthophosphate sol used at 3-6 wt% of the total raw material weight. The refractory material is fired under a nitrogen atmosphere. This long-life aluminosilicate refractory material for glass kilns breaks through the performance limits of traditional aluminosilicate refractory materials, providing key material support for the green and low-carbon development of the glass industry.

A lithium-rich manganese-based positive electrode material, a preparation method, a positive electrode foil, a lithium-ion battery and an electrical device. The lithium-rich manganese-based positive electrode material includes a base material and a coating layer coated on at least a part of a surface of the base material. The base material includes a manganese-based positive electrode active material represented by a chemical formula of (1-x) Li2MnO3·xLiNiaMnbMcO2, where 0.60＜x＜0.70, a>0, b>0, a+b=1, 0≤c＜0.02, and M is a metal element; and the coating layer includes an Na-CHA-type aluminosilicate molecular sieve.

Pumpable slurry compositions comprising at least one aluminosilicate additive and optional pozzolanic cement additives and methods for improving development of compressive strengths in the pumpable cement slurry compositions are disclosed herein. The methods utilize one or more pumpable cement slurry compositions comprising at least one cement component, water, at least one first aluminosilicate additive, at least one optional second aluminosilicate additive, and one or more optional pozzolanic additives, wherein the at least one first aluminosilicate additive has an amorphous phase of greater than about 50% and a weight ratio of silica oxide to aluminum oxide of about 1.0 to about 2.5, and the at least one optional second aluminosilicate additive has a weight ratio of silica oxide to aluminum oxide of about 1.7 to about 3.3.

The purpose of the present invention is to provide a composition which is for use in hydraulic materials and attains excellent storage stability. An aluminosilicate-containing composition according to the present invention contains an aluminosilicate, wherein the aluminosilicate is one obtained by reacting an aluminum-containing compound with a silicon-containing compound at a temperature of 30°C or higher in the presence of a water-soluble polymer having at least one functional group selected from among a carboxyl group, a phosphoric acid group, a sulfonic acid group, salts of these, and phosphoric ester groups.

This invention discloses a method for extracting gallium from coal using rare metal extraction technology. Using dry fly ash with a gallium content of 50-80 μg / g as raw material, the method sequentially involves raw material pretreatment, roasting activation, acid leaching, leachate pre-purification, solvent extraction and back-extraction, deep refining, and electrolytic refining to achieve efficient gallium extraction and purification. The core of this method is the destruction of the aluminosilicate lattice through high-temperature roasting activation with soda ash, converting gallium into a soluble state. Impurities are then removed through three stages of deep purification, combined with an alkaline constant-current electrolytic process to prevent impurity co-deposition. This method realizes the resource utilization of low-grade fly ash solid waste, significantly improves the gallium leaching rate and resource recovery rate, and ultimately obtains industrial-grade gallium with high purity.

The present disclosure relates to an apparatus and process for lithium aluminosilicate transformation roasting, waste heat recovery and tail gas treatment, and relates to the technical field of lithium aluminosilicate transformation. The transformation unit in the apparatus comprises a heating assembly, a transformation assembly and a transformation material gas-solid separator; the transformation material gas-solid separator comprises a transformation material inlet, a solid outlet and a gas outlet; the heating assembly comprises a connected temperature rising furnace and a first air supply assembly; the transformation assembly comprises a connected transformation furnace and a second air supply assembly; the first outlet of the temperature rising furnace is connected with the second inlet of the transformation furnace, and the first outlet of the transformation furnace is connected with the transformation material inlet; the temperature rising furnace and the transformation furnace are both vertical furnaces; the first inlet of the heat exchange unit is connected with the feeding unit, and the second inlet of the heat exchange unit is connected with the gas outlet; the first outlet of the heat exchange unit is connected with the second inlet of the temperature rising furnace, the second outlet of the heat exchange unit is connected with the flue gas treatment unit, and the solid outlet is used for making the transformed material enter the subsequent process.

A coating includes a filler, an alkali metal-rich silicate having the formula [Li2O] x [Na2O] y [K2O] z [SiO2] and water. The filler includes alumina, aluminosilicate, calcium silicate, titanium dioxide, silicon carbide, silicon nitride, boron nitride, hexagonal boron nitride, zircon, kaolin, mica, vermiculite, graphite, or a combination thereof. The sum of x, y, and z in the alkali metal silicate is at least 0.35. The molar ratio of water to alkali metal silicate in the coating is 4 to 20. Coatings and articles containing dried coatings that can be used as impact-resistant thermal barriers in high temperature applications.

The present application relates to the technical field of health-care materials, and discloses a rare earth composite energy health-care product based on synergy and a preparation method thereof, which comprises monazite fine powder 10 parts by weight, silico-aluminate composite network forming agent 75-80 parts by weight, in-situ reduction and network modifier 5-10 parts by weight, and pore forming agent 3-5 parts by weight; the preparation method comprises the following steps: crushing and grading the raw ore to obtain fine powder by intercepting high-density radioactive associated ore; mixing and kneading the fine powder and the remaining components to form a green body; performing three-stage step calcination to sequentially complete low-temperature pore forming, high-temperature magnesium hot reduction to generate lattice oxygen vacancies, and introduction of high-temperature water vapor to promote the generation of amorphous liquid phase to solid-solution-embed radioactive nuclides; and finally, forced air cooling and depolymerization and crushing are performed to obtain the finished product. The present application effectively reduces the radioactivity background of the material, blocks the physical channel for the escape of decay gas, and enables the product to have the functions of safe and stable far-infrared radiation and release of negative oxygen ions.

The present invention addresses the problem of providing powder that facilitates a separation operation or a recovery operation. Powder according to the present invention contains aluminosilicate granules, and the aluminosilicate granules contain nanotube-shaped particles and magnetic particles.

The invention discloses geopolymer cement canvas and a preparation method thereof, and relates to the field of inorganic nonmetal composite materials and civil engineering materials, the canvas comprises an upper functional fabric, a single-component geopolymer inner core layer and a lower functional fabric which are stacked from top to bottom, and the upper functional fabric, the single-component geopolymer inner core layer and the lower functional fabric are mechanically locked into an integral flexible structure through suture lines; the single-component geopolymer inner core layer is composed of an aluminosilicate precursor, a composite solid alkali activator and a nano modifier. The preparation method comprises the steps of fabric laying, geopolymer powder spreading, compacting, fabric covering, sewing and post-processing. The functional gradient fabric and single-component geopolymer collaborative design is adopted, a traditional complex composite technology is replaced with mechanical sewing, the problems that an existing flexible cement-based material is complex in structure technology, high in cementing material carbon emission, low in solidification speed and insufficient in combination reliability are solved, and the composite material has the advantages of being fast in solidification, early in strength, low in carbon, environmentally friendly, durable, stable and the like; the method is suitable for slope protection, emergency repair and other engineering scenes.

The application provides a new filter material suitable for sulfur autotrophic denitrification and a preparation method and application thereof, different types of sulfur-containing raw materials are added into a carrier material containing silicate and aluminate, and then an activator is used to activate the carrier material, and finally the new filter material has the characteristics that the sulfur sources are rich in types and uniformly dispersed in the structure of the carrier material. The application also provides a simple preparation method and a multi-layer wrapping type preparation method of the new filter material, the sulfur sources and carbon sources of the new filter material prepared by the multi-layer wrapping type preparation method can be more uniformly distributed on the outer surface and inner pores of the filter material, slowly release the sulfur sources and carbon sources in the water body, conducive to the aggregation and continuous growth of microorganisms, effectively improve the denitrification efficiency, and the new filter material has high mechanical strength, strong impact resistance, is not easy to lose excessive service life due to consumption of microorganisms, and has a long service life.