136 results about "Sepiolite" patented technology

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The invention discloses a high-temperature dechlorinating agent for removing hydrogen chloride gas and a preparation method of the high-temperature dechlorinating agent, and belongs to the technical field of dechlorinating, and the preparation method of the high-temperature dechlorinating agent for removing the hydrogen chloride gas comprises four steps of preparing sepiolite-loaded active calcium powder, preparing copper-aluminum coated calcium carbonate whiskers, forming and roasting. According to the high-temperature dechlorinating agent for removing the hydrogen chloride gas, the penetration chlorine capacity is 78.5 to 81.7 percent, the crushing strength is 142 to 160N. Cm <-1 >, and the abrasion rate is 0.8 to 1.2 percent.

The invention discloses a high-temperature-resistant flame-retardant CPVC power cable protection pipe and a preparation method thereof, and relates to the technical field of cable protection pipes. The high-temperature-resistant flame-retardant CPVC power cable protection pipe at least comprises the following raw materials in parts by mass: 100 parts of chlorinated polyvinyl chloride; 15 to 25 parts of high impact resistance type MCS resin; 8 to 12 parts of poly (1, 2-propylene glycol adipate); 12 to 20 parts of a sepiolite-methyl methacrylate-butyl acrylate compound; 8-15 parts of aluminum-titanium composite coupling agent modified magnesium-aluminum-lanthanum hydrotalcite; 3-6 parts of a rare earth composite heat stabilizer; 2-4 parts of a processing aid; 0.5 to 1.5 parts of an antioxidant; and 1-2 parts of a lubricant. The prepared high-temperature-resistant flame-retardant CPVC power cable protection pipe has high heat resistance, high flame retardance and high impact resistance, and is excellent in comprehensive performance, high in safety and reliability and long in service life.

The invention relates to a heavy metal stabilizer and a preparation method and application thereof, and relates to the technical field of heavy metal stabilizers. The preparation method comprises the following steps: weighing sepiolite, adding hydrochloric acid, carrying out constant-temperature water bath, carrying out centrifugal separation to obtain a precipitate, drying the precipitate, and grinding to obtain the heavy metal stabilizer for sludge pyrolysis. Natural sepiolite is used as a base material, acid activation treatment is carried out through hydrochloric acid to obtain the heavy metal stabilizer, the heavy metal stabilizer is used in sludge pyrolysis, in the pyrolysis process, the heavy metal stabilizer fixes heavy metal in a pyrolysis product carbon in a stable form through the effects of surface adsorption, ion complexation, high-temperature packaging and the like, and the heavy metal stabilizer is used for sludge pyrolysis. Therefore, the emission of heavy metals in the pyrolysis process is reduced, and the ecological risk and the use risk of the pyrolysis product carbon are reduced.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to N-methylmaleimide modified sepiolite as well as a preparation method and application thereof. The sepiolite raw material is subjected to acidification pretreatment, silane coupling agent modification and N-methylmaleimide modification, so that the dispersity of sepiolite in the flame-retardant cable material can be remarkably improved, the flame retardance of the flame-retardant cable material is effectively improved, and meanwhile, the flame-retardant cable material keeps good tensile strength, elongation at break and volume resistivity; the cable has a good application prospect in the field of communication cables or power cables.

The invention relates to the technical field of building waterproof materials, and discloses a composition for an asphalt waterproof coating, the asphalt waterproof coating and a preparation method and application of the asphalt waterproof coating. The composition contains a main agent and an auxiliary agent, the main agent comprises composite asphalt, a filler composition and an antioxidant; relative to 100 parts by weight of the composite asphalt, the content of the filler combination is 30-50 parts by weight, the content of the antioxidant is 1.5-4 parts by weight, and the content of the additive is 14-30 parts by weight; wherein the composite asphalt is a combination of petroleum asphalt and plant asphalt; the filler composition is a composition of montmorillonite, sepiolite and diatomite in a content mass ratio of 1: (1-4): (1.5-6); the montmorillonite is loaded with 0.5 to 4 mmol / g of copper ions, and the diatomite is loaded with 0.5 to 4 mmol / g of silver ions. The waterproof coating provided by the invention can significantly improve the peel strength, weather resistance and aging resistance of the coiled material, and also has efficient mildew-proof and antibacterial effects.

The invention discloses an organic-inorganic composite acid soil conditioner with synergism of nitrogen element synergism and soil expansion and application, and belongs to the technical field of soil conditioners. The modifier prepared by the invention is prepared from an acid neutralizer, a structure modifier, a capacity expansion synergist and a nitrogen synergist and is prepared from the following components in parts by weight: 18 to 22 parts of dolomite powder, 6 to 10 parts of lime powder, 20 to 24 parts of oyster shell powder, 8 to 12 parts of humic acid, 4 to 8 parts of sargassum, 1 to 3 parts of sodium alginate, 7 to 11 parts of charcoal, 5 to 9 parts of sepiolite powder, 3 to 7 parts of bentonite, 6 to 10 parts of poly gamma-calcium glutamate and 3 to 7 parts of chitosan. The soil conditioner can regulate and control the soil acidity, buffer the soil capacity, improve the soil structure and balance soil nutrients, solves the problems of high re-acidification rate, soil hardening and nutrient imbalance of a traditional lime conditioner, and is suitable for pHlt; and 6.5, repairing the acid soil.

The invention relates to a method, device and equipment for identifying sepiolite in rock and a medium, and belongs to the technical field of image processing, and the method for identifying sepiolite in rock is used for identifying sepiolite in rock based on a fully trained hybrid neural network model. The hybrid neural network model comprises a feature extraction layer, an early fusion layer, a middle fusion layer and a late fusion layer, feature extraction is carried out on the multi-modal data based on the feature extraction layer, image feature vectors and text feature vectors are spliced based on the early fusion layer, weighted fusion is carried out on the multi-modal feature vectors based on the middle fusion layer, and a fusion result is obtained; and performing classification feature extraction on the fused feature vector based on the late fusion layer, fusing the image classification feature and the text classification feature, and inputting the fused classification feature, the fused feature vector and the multi-modal feature vector into a classifier to identify the sepiolite in the rock. And the identification efficiency and the identification precision of the sepiolite in the rock are improved.

This invention relates to the field of concrete technology, specifically to a self-healing concrete material, its preparation method, and its application. The self-healing concrete material is a core-shell structured microcapsule, comprising a core material and a wall material. The wall material wraps around the core material. The core material comprises the following raw materials in parts by weight: 4-6 parts β-cyclodextrin, 12-18 parts sepiolite powder, 5-10 parts shellac powder, 25-35 parts sulfoaluminate cement, 10-15 parts magnesium oxide, 12-16 parts sodium silicate aqueous solution, and 14-17 parts calcium carbonate. The wall material comprises the following raw materials in parts by weight: 20-30 parts polyvinyl alcohol, 20-30 parts ethyl cellulose, 15-25 parts bentonite, and 25-35 parts corn starch. The mass ratio of the core material to the wall material is 6-7:3-4. The core material of the self-healing concrete material provided by this invention, comprising β-cyclodextrin, sepiolite powder, and shellac powder, can improve the problems of slow repair speed and poor reinforcement effect of self-healing materials.

A product and method of producing a product that may comprise diatomaceous earth, clay and dispersant. The clay may comprise (a) attapulgite or (b) sepiolite or (c) attapulgite and sepiolite. A portion of the clay and a portion of the diatomaceous earth is agglomerated to form a plurality of composite particles, wherein the composite particle is at least partially surface treated with the dispersant. The product may have a particle size distribution having a d50 of 5-40 microns and a d10 of 1-15 microns. The product may have a median pore diameter of 2-10 microns, a pore volume of 1-4 mL / g and a bulk density of 50-300 kg / m3.

The invention relates to a multi-permeable reactive barrier developed for use in nuclear power plants, which provides the uptake of cesium and strontium radionuclides, and contains at least one upper cover (1) providing fixation, through which the liquid enters; at least one lower cover (2) providing fixation, through which the liquid exists (drainage); at least one sealing element (3) positioned to separate each component from each other; at least one liquid permeable filter (4); and at least one body (5) containing zeolite, diatomite, clay and sepiolite components, respectively from top to bottom.

A product for adsorbing a heavy metal that includes arsenic and / or selenium. The product may comprise clay that has been surface functionalized with a surface treating agent. The surface treating agent may include (a) one or more arsenic affinity functional groups, and / or (b) one or more selenium affinity functional groups. The weight percentage of components of the product may include: 70 – 99 wt. % clay and 1 – 30 wt. % surface treating agent. 60 – 95 % of the product is in the form of granules sized to pass through a 10 mesh sieve and to be retained on a 100 mesh or 60 mesh sieve, or sized in the range of less than 2000 microns to 149 or 250 microns. The clay includes attapulgite and / or sepiolite. Also disclosed is a method of producing the product and a method of adsorbing the heavy metal in a liquid using the product.

The invention provides salt-resistant soil for drilling fluid as well as a preparation method and application of the salt-resistant soil, and relates to the field of drilling fluid. The salt-resistant soil for the drilling fluid is prepared from the following raw materials in parts by weight: 25 to 30 parts of purified sepiolite, 7 to 20 parts of 2-acrylamido-2-methylpropanesulfonic acid, 7 to 10 parts of N, N-dimethylacrylamide, 9 to 15 parts of a cationic monomer and 1 to 2 parts of an initiator. The invention further provides a preparation method of the salt-resistant soil for the drilling fluid and application of the salt-resistant soil in the water-based drilling fluid. The salt-resistant soil for the drilling fluid provided by the invention can keep a good slurry making rate in fresh water, saturated salt water and composite salt water, has good rheological property and outstanding temperature resistance, is suitable for various drilling fluid systems, is wide in application range, particularly can be used for directly making slurry by using seawater in offshore drilling operation, and has a wide application prospect. And the construction is more convenient in an environment lacking fresh water resources.

The application discloses a method for preparing a magnesium silicate hydrate cement material by using sepiolite, and the method comprises the following steps: dissolving sepiolite by using a strong acid, and separating a solution and a residue; adding NaOH into the solution to obtain Mg(OH)2 precipitate; separating the Mg(OH)2 precipitate, and calcining to obtain MgO; mixing a water reducing agent, the residue and the MgO, and adding water to maintain, so as to obtain the magnesium silicate hydrate cement material. The method uses sepiolite which is rich in the earth's crust as a main raw material, and realizes low-cost and large-scale preparation of the magnesium silicate hydrate cement material.

The application discloses a preparation method and application of an enhancer for deep coal bed gas well cementing preflush fluid, and the preparation method comprises the following steps: mixing epoxy resin, acetylacetone, triethylamine and deionized water, stirring and reacting at 80-90 DEG C for 2-4 h, then adding adipic acid in batches, keeping the temperature and continuously reacting for 6-12 h, removing acetylacetone through reduced pressure distillation, and obtaining an intermediate product M1; weighing the intermediate product M1, adding a silane coupling agent, a dispersant, sodium silicate, a calcium salt and an aluminate to the intermediate product M1 in a stirring state, stirring for 5-10 min, then standing and reacting at 35-40 DEG C, to obtain a hydrated nanometer material intermediate product M2; weighing the intermediate product M2, and adding fibrous sepiolite to the intermediate product M2 and uniformly mixing. The enhancer can modify the wettability of a coal rock surface into hydrophilicity, and when the enhancer is used for deep coal bed gas well cementing preflush fluid, the well cementing quality of a deep coal bed gas horizontal well is improved.

The invention relates to an efficient and long-life inorganic dry powder coating with a self-humidifying function and a preparation method thereof, and belongs to the technical field of inorganic coatings. The inorganic dry powder coating comprises the following components in parts by weight: 30-40% of potassium silicate, 10% of expanded perlite, 10-25% of high-activity sepiolite nanofiber, 10% of calcined shell powder, 18-28% of quartz sand and 2-3% of an auxiliary agent. The preparation method comprises the following steps: firstly, treating a sepiolite raw material by virtue of a synergistic process of ultrasonic beam splitting and citric acid activation, so as to obtain high-activity sepiolite nanofibers which are fully dissociated, have nano hierarchical pore channels and are rich in hydrophilic groups; and compounding the high-activity sepiolite nanofiber with calcined shell powder, expanded perlite, quartz sand and potassium silicate to synergistically construct an inorganic coating system with optimized microstructure and efficient moisture absorption / liberation performance. The coating is simple in preparation process and environment-friendly, has excellent mechanical properties and self-humidity-regulating performance, still keeps an efficient humidity-regulating effect in a long-term service environment, and has outstanding long-acting stability.

The invention relates to a preparation method and application of high-temperature-resistant inorganic modified bentonite. The method comprises the following steps: firstly, treating bentonite and sepiolite composite clay through a microwave-assisted hydrogen peroxide method, and improving the dispersity of minerals by utilizing a large amount of oxygen generated by decomposing hydrogen peroxide in a microwave field; then metal oxide nanoparticles are added into the suspension of the composite clay mineral, and sepiolite and metal oxide are used for synergistically modifying bentonite, so that the high-temperature tolerance of the material at 250 DEG C is improved, and the material can be used as a slurry making agent in water-based drilling fluid. No organic reagent is used, and related products have good thermal stability.

The invention provides an excitation material for a low-concentration high-tail-mud-content all-tailing cementing curing agent and a preparation method of the excitation material, and belongs to the technical field of mining solid waste resource utilization and novel building materials. The excitation material comprises the following components in percentage by weight: 20%-40% of an active silicon-aluminum precursor, 30%-50% of anhydrous gypsum, 10%-20% of quick lime, 5%-15% of modified bentonite, 1%-5% of sepiolite, 5%-10% of heavy calcium carbonate powder and 1%-5% of composite alkali liquor. The excitation material breaks through the solidification bottleneck of the high-mud tailings through double mechanisms of composite excitation and ion slow release, effectively solves the problems of poor cementation solidification effect, difficult construction and the like of low-concentration and high-mud-content full tailings, improves the water stability and sulfate corrosion resistance of a solidified body, and is suitable for being applied to the field of filling of the tailings except for conventional tailing filling application scenes. And the method can be expanded to resource utilization of mud-containing wastes such as river mud and shield muck, and has a wide application prospect.

According to the solid stemming with the high CO adsorption performance and the application of the solid stemming, modified sepiolite is adopted as a core functional component, natural sepiolite is modified through an acidification-hydrothermal-copper loading triple process, the specific surface area, the pore volume and the surface active site density of the solid stemming are remarkably increased, and the CO adsorption performance is improved; the solid stemming is endowed with efficient physical and chemical adsorption capacity on CO molecules. At the moment of blasting, the blasthole plugging material is crushed and dispersed along with high-pressure airflow, and the modified sepiolite micro powder is diffused in the underground space after blasting, so that escaping CO gas can be quickly captured and fixed, the forced ventilation and smoke discharge time is shortened, and the roadway tunneling efficiency is improved. And by controlling the concentration of the saline solution and the ratio of the modified sepiolite to the saline solution, the solid stemming has good plasticity and dispersity, is convenient for underground operation and is not easy to bond, and the construction efficiency is improved.

Disclosed is a moisture regulating ceramic material production method which includes the following process steps: mixing starting powders containing sepiolite and reactive alumina sulfate; grinding the starting powders; obtaining granules by dry granulation using alkaline solution with the starting powders; carrying out a pressing process of the granules; and obtaining the materials.

The application discloses infrared-reflecting heat-insulating paint, which is prepared from the following raw materials: component A and a curing agent; the raw materials of component A include 50 parts of film-forming resin, 20-30 parts of fillers, 2-3 parts of a dispersing agent and 20-30 parts of water; wherein the fillers include modified hollow glass microbeads and modified sepiolite. The application further discloses a preparation method of the infrared-reflecting heat-insulating paint, which comprises the following steps: mixing the raw materials of component A, and then mixing the component A with the curing agent to obtain the infrared-reflecting heat-insulating paint. The infrared-reflecting heat-insulating paint has good infrared reflection, heat insulation and stain resistance.

The invention relates to an RDF combustion rod based on municipal solid waste and a preparation method thereof, and the preparation method comprises the following steps: selecting municipal solid waste with a calorific value, and carrying out low-temperature drying-microwave modification pretreatment to obtain pretreated domestic waste; sequentially carrying out primary crushing, sorting, impurity removal and crushing on the pretreated household garbage to obtain a crushed material; performing high-temperature activation on bentonite to obtain high-temperature activated bentonite; soaking sepiolite with a fibrous structure in a hydrochloric acid solution, washing with water until the sepiolite is neutral, and drying to obtain modified sepiolite; and carrying out high-temperature roasting-ultrasonic dispersion treatment on sludge gasification slag to obtain pretreated sludge gasification slag, mixing the pretreated sludge gasification slag with the crushed material, high-temperature activated bentonite and modified sepiolite, and carrying out pressure forming to obtain the RDF combustion rod. Municipal solid waste with a calorific value is pretreated, so that the reaction activity is improved; and the pretreated sludge gasification slag is used as a catalyst, so that the combustion performance of the RDF combustion rod is remarkably improved.

The invention relates to the field of power transmission line galloping prevention, in particular to a damping composite material which is prepared by adopting a double-phase elastomer matrix and compound nano filler system, taking 100 parts of ethylene-propylene-diene rubber as a matrix, and matching 30-50 parts of hydroxyl-terminated polybutadiene, 40-65 parts of silane modified sepiolite, 10-20 parts of hydroxylated graphene, 6-15 parts of di-iso-decylphthalate and the like. Through a synthesis process, the damping composite material is made into the damping element, and the damping element is applied to a damper of the phase-to-phase spacer, so that the problems that damping of a traditional phase-to-phase spacer loses efficacy at low temperature in a cold region, and insulation and damping performance are difficult to consider are solved, and the damping element can still efficiently dissipate galloping energy at extremely low temperature; therefore, the anti-galloping performance and the operation safety of the power transmission line in the cold region are remarkably improved.

The invention discloses a preparation method and application of a calcium-phosphorus-loaded hydrothermal humic carbon-based soda saline-alkali soil slow-release conditioner, and belongs to the technical field of soda saline-alkali soil remediation and fertilizer. The invention aims to solve the problems that a modifier used in an existing soda saline-alkali soil improvement technology is short in validity period and inconvenient to transport and apply, possibly causes secondary environmental risks and cannot synergistically and continuously provide nutrients such as phosphorus for soil. The method comprises the following steps: 1, preparing phosphorus-rich hydrothermal humic carbon; 2, preparing sepiolite modified phosphorus-rich hydrothermal humic carbon; and 3, preparing a cross-linked protective layer. The invention breaks through the limitation of single function of the traditional saline-alkali soil remediation technology, develops the soda saline-alkali soil conditioner which is green, low in cost, easy to apply and high in stability and integrates multiple environment responses of high Na < + >, high pH and phosphorus starvation, and solves the problem of phosphorus starvation of the remediated soil while reducing the harm of soil salinization. And a green and sustainable solution is provided for treatment of soda saline-alkali soil.

The invention relates to the technical field of garden ecological environment restoration, in particular to a garden ecological environment restoration agent and a preparation method and application thereof. The garden ecological restoration agent is prepared from the following components in parts by weight: 30 to 50 parts of modified biochar, 5 to 15 parts of wollastonite, 5 to 15 parts of hydroxyapatite, 10 to 20 parts of sepiolite, 15 to 25 parts of humic acid and 3 to 8 parts of a microbial agent, the garden ecological environment repairing agent provided by the invention has a relatively good repairing effect on the soil environment.

A fire protection coating and a fire barrier coated article are provided that comprise an inorganic binder and at least one inorganic filler, wherein the inorganic binder is selected from potassium silicate, sodium silicate, or a combination thereof, and wherein the at least one inorganic filler is selected from kaolin clay, talc, mica, mullite, phlogopite, muscovite montmorillonite, smectite, bentonite, illite, chlorite, sepiolite, attapulgite, halloysite, vermiculite, laponite, rectorite, perlite, and combinations thereof. The fire barrier article comprises flame resistant substrate layer having a first major surface and a second major surface, and a fire protection coating disposed on the first major surface of the flame resistant substrate layer.

The invention discloses a preparation process of a slow-release underground water organic pollution degradation purifying agent, which comprises the following steps: (1) adding sepiolite powder, cobalt salt and iron salt into water, uniformly mixing, adjusting to be alkaline, separating out solids, washing, drying, and calcining to obtain active catalytic powder; and (2) uniformly mixing activated carbon with the persulfate saturated solution, freeze-drying, and grinding to obtain the modified activated carbon powder. Granulating the modified activated carbon powder, and drying to obtain core particles; and (3) uniformly mixing the styrene-butadiene-styrene block copolymer emulsion with the active catalytic powder to obtain a slow-release film solution, coating the surface of the core particle with the slow-release film solution, and drying to obtain the degradation purifying agent. According to the present invention, the sulfate and the catalyst can be completely contacted, the problems of rapid consumption and low utilization rate of the persulfate can be effectively alleviated, the degradation effect on the organic pollutants is improved, and the good purification effect can be maintained for a long time.

The invention relates to a high-strength water-absorbing breathing brick and a preparation process thereof, the high-strength water-absorbing breathing brick is composed of a first base material and a second base material according to a weight part ratio of (50-70): (30-50), and the first base material comprises the following raw materials: potassium-sodium feldspar, wollastonite and magnesia soil; the second base material comprises the following raw materials: quartz sand, pyrophyllite, siliceous shale, diatomite and sepiolite fibers, by limiting the raw material composition of the water-absorbing breathing brick, the pyrophyllite, the siliceous shale and the sepiolite fibers are introduced to be matched with other raw materials, so that a uniformly-distributed porous structure is formed in the fired water-absorbing breathing brick, the porosity in the brick body is improved, and the water-absorbing breathing brick has a good water-absorbing breathing effect. Therefore, the water absorption rate and the water permeability of the brick body are improved, and the use requirements of outdoor bricks are met.

The invention discloses multi-scene self-adaptive gradient composite drilling fluid slurry and a preparation method of the multi-scene self-adaptive gradient composite drilling fluid slurry. The multi-scene self-adaptive gradient composite drilling fluid slurry is prepared from 20%-30% of modified sepiolite, 12%-25% of sodium red clay, 8%-15% of a nanofiller-red clay compound, 4%-8% of a pH response type filtrate reducer, 3%-6% of an environment-friendly lubricant, 0.5%-2% of a bio-based antibacterial agent and the balance of deionized water. The modified sepiolite is modified by grafting acrylic acid with a silane coupling agent; the nano filler-red clay compound is a compound formed by loading nano calcium carbonate on the surface of red clay; the pH response type filtrate reducer is a compound of polyaspartic acid and chitosan quaternary ammonium salt, or a compound of polyepoxysuccinic acid and chitosan quaternary ammonium salt; the environment-friendly lubricant is a modified vegetable oil microemulsion; the density of the multi-scene self-adaptive gradient composite drilling fluid slurry is 1.3-1.7 g / cm < 3 >. The invention solves the problem that the existing drilling fluid is insufficient in salt resistance and environmental protection property.

A product for adsorbing a heavy metal that includes arsenic and / or selenium. The product may comprise clay that has been surface functionalized with a surface treating agent. The surface treating agent may include (a) one or more arsenic affinity functional groups, and / or (b) one or more selenium affinity functional groups. The weight percentage of components of the product may include: 70-99 wt. % clay and 1-30 wt. % surface treating agent. 60-95% of the product is in the form of granules sized to pass through a 10 mesh sieve and to be retained on a 60 mesh sieve, or sized in the range of less than 2000 microns to 250 microns. The clay includes attapulgite and / or sepiolite. Also disclosed is a method of producing the product and a method of adsorbing the heavy metal in a liquid using the product.