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58 results about "Palygorskite" patented technology

Palygorskite or attapulgite is a magnesium aluminium phyllosilicate with formula (Mg,Al)₂Si₄O₁₀(OH)·4(H₂O) that occurs in a type of clay soil common to the Southeastern United States. It is one of the types of fuller's earth. Some smaller deposits of this mineral can be found in Mexico, where its use is tied to the manufacture of Maya blue in pre-Columbian times.

Soil organic modifier for ecological reconstruction of hardened soil and preparation method thereof

The invention discloses a soil organic modifier for ecological reconstruction of hardened soil and a preparation method thereof, the soil organic modifier is composed of a biological dry fermentation fertilizer and earthy palygorskite according to a volume ratio of 10-30: 1, and the water content is 25-40%; the biological dry fermentation fertilizer is prepared from livestock manure and a biomass material through anaerobic fermentation, and the biomass material is obtained by modifying sodium aluminosilicate, biochar and ceramsite through an organic matter-hot dipping method. The soil organic modifier prepared by the invention is used for hardened soil, improves soil pores, increases soil organic matters and nutrients, improves the sustainable reproduction environment of soil organisms, realizes optimization of soil physical and chemical properties, improves crop resistance, increases the yield and quality of crops, and reverses the problems of soil hardening and degradation and the like.
Owner:YANGTZE ECOLOGY & ENVIRONMENT CO LTD

Preparation method of biochar-based composite material adaptive to efficient immobilization of microorganisms

The invention belongs to the technical field of biochar immobilized microorganisms, and particularly relates to a preparation method of a biochar-based composite material for efficient immobilization of adaptive microorganisms. The microbial loading capacity is remarkably improved, the chain structure of the attapulgite layer provides a large number of linear adsorption sites, the porous structure of the biochar forms a three-dimensional adsorption space, and the chain structure and the porous structure of the biochar construct a synergistic adsorption mode; when the ammonium ferric citrate is modified, a decomposition product of the ammonium ferric citrate can form new mesopores / micropores in the carrier to enlarge the specific surface area, and the Fe element can be coordinated with an Si-O bond of the attapulgite and a carbon skeleton of the charcoal, so that pore collapse is inhibited, and the cycle stability is improved. And hydroxyl groups on the surface of the attapulgite and oxygen-containing functional groups of the charcoal cooperate with each other, so that electrostatic attraction and hydrogen bond binding force to the microorganisms are enhanced. The microorganism survival microenvironment is optimized, the composite carrier has the ion exchange capacity of the attapulgite and the water and fertilizer retention characteristic of the biochar, and a stable buffer environment and nutrition reserve can be provided for microorganisms.
Owner:FOSHAN UNIVERSITY

Thickening suspending agent containing modified attapulgite and application thereof

The invention discloses a thickening suspending agent containing modified attapulgite and application of the thickening suspending agent, and belongs to the technical field of thickening suspending agents. After acidification treatment, the content of impurities on the surface of attapulgite is reduced, the surface area and the porous property are increased, the load rate of zero-valent iron can be increased, and the utilization rate of the zero-valent iron is increased. Zero-valent iron is uniformly loaded on tubular pore channels or the surface of attapulgite in the form of nano-particles, so that the surface roughness of the composite powder is increased, stronger steric hindrance can be formed around pesticide particles, and the pesticide particles are prevented from being gathered and enlarged due to collision, so that sedimentation is reduced, and the composite powder has good suspension property and dispersity; the load of zero-valent iron can endow the thickening suspending agent with the heavy metal chelating capability; through two times of intercalation treatment, the modified zero-valent iron composite attapulgite powder can be uniformly loaded between graphene oxide layers, the graphene oxide can assist the dispersion of the attapulgite to avoid agglomeration, and the existence of the graphene oxide can improve the thermal stability of the thickening suspending agent.
Owner:MINGGUANG GUOXING ATTAPULGITE CLAY

Water-soluble salt core for aluminum casting and injection molding preparation process of water-soluble salt core

The invention relates to the technical field of casting, in particular to a water-soluble salt core for aluminum castings and an injection molding preparation process thereof.The water-soluble salt core is composed of a heterogeneous layered composite material system, and the heterogeneous layered composite material system comprises an eutectic mixture formed by superfine monopotassium phosphate and sodium citrate and used as a base material, the nano palygorskite fiber is used as a reinforcing phase; the functional layer formed by the polyvinyl alcohol film is wrapped on the outer layer; and sodium bicarbonate; according to the water-soluble salt core for the aluminum casting and the preparation technology of the water-soluble salt core, through the improved raw material formula and the innovative preparation technology, the defects in the prior art are effectively overcome. In the aspect of a raw material formula, an eutectic mixture formed by superfine monopotassium phosphate and sodium citrate which are mixed in a specific proportion is used as a base material, and the eutectic mixture has good chemical stability and thermal stability and can provide basic strength and forming performance for the water-soluble salt core.
Owner:BINZHOU ZHONGSHUN ENGINE COMPONENTS CO LTD

A silicon calcium potassium magnesium type soil conditioner and a preparation method thereof

The application belongs to the technical field of soil improver, and particularly relates to a silicon-calcium-potassium-magnesium type soil improver and a preparation method thereof. The preparation method comprises the following steps: S1, adding quicklime into a sodium silicate solution to perform a reaction, separating, and drying to obtain calcium silicate with a water content of 0-80%; S2, uniformly mixing the calcium silicate, a magnesium salt / molecular sieve / modified cellulose, and a potassium salt / modified chitosan to obtain a mixture; and S3, spraying an alcohol solution containing alkyl quaternary ammonium salt modified palygorskite on the mixture, stirring, and drying to obtain the silicon-calcium-potassium-magnesium type soil improver. The silicon-calcium-potassium-magnesium type soil improver can meet the index requirements of the national standard GB / T 36207-2018 'Silicon-calcium-potassium-magnesium type fertilizer', and has good slow-release effect, storage stability, can improve the pH of acidic soil, and can increase the organic matter content of soil.
Owner:ORDOS MENGTAI ALUMINUM CO LTD

Ceramic tile adhesive as well as preparation method and application thereof

The invention relates to the technical field of road engineering construction, and particularly discloses a ceramic tile adhesive as well as a preparation method and application thereof. The ceramic tile binder comprises sulphoaluminate cement, gypsum, aggregate, rubber powder, a polymer emulsion, an inorganic additive, a waterproof agent, a water reducing agent, a defoaming agent and an air entraining agent, wherein the inorganic additive comprises palygorskite powder, microcrystalline glass powder, calcium formate and calcium nitrite; the polymer emulsion comprises a water-based acrylate emulsion and an ethylene-vinyl acetate copolymer emulsion. The ceramic tile binder has good water resistance, excellent bonding performance and low temperature resistance, the problems that an existing ceramic tile binder is poor in water resistance, low in bonding strength and poor in low temperature resistance are effectively solved, and a new design thought is provided for design of the ceramic tile binder.
Owner:CHINESE ACAD OF GEOLOGICAL SCI

Preparation method of attapulgite-based magnesium silicate anthraquinone regenerative catalyst, anthraquinone regenerative catalyst and application thereof

The application provides a palygorskite-based magnesium silicate anthraquinone regenerative catalyst and a preparation method thereof, the chemical formula of the anthraquinone regenerative catalyst is Mg4Si6O15(OH)2·6H2O, and the preparation method comprises the following steps: (1) obtaining a palygorskite-based SiO2 precursor through hydrothermal acidification of palygorskite; (2) uniformly mixing the palygorskite-based SiO2 precursor, an ammonium salt, a magnesium salt and ammonia water through ultrasonic mixing; and (3) transferring the mixed solution to a hydrothermal kettle to generate palygorskite-based magnesium silicate through hydrothermal reaction. The application takes palygorskite as a silicon source and a template, has the advantages of wide raw material source, simple preparation process, low production cost, green environmental protection and convenience for industrialized production, etc. The palygorskite-based magnesium silicate prepared by the application can be used as a solid alkali catalyst, and has the advantages of non-toxicity, environmental protection, high catalytic activity, long service life and the like.
Owner:BEIJING UNIV OF CHEM TECH

Glaze for preventing deformation of ceramic tiles and anti-deformation ceramic tile

ActiveCN117865485BImprove flexural strengthHigh degree of sinteringCarbon nanotubesCeramic materials productionPyrophylliteGlaze
This invention belongs to the field of building materials technology. Specifically, it discloses a glaze for preventing ceramic tile deformation and an anti-deformation ceramic tile, comprising the following raw materials in parts by weight: 15-30 parts spodumene, 15-30 parts calcite, 12-20 parts bauxite, 8-15 parts pyrophyllite, 6-12 parts modified magnesium borate whiskers, 5-9 parts wet-process mica powder, 3-6 parts palygorskite, 1-2.5 parts calcium borate, 1-2 parts tricalcium silicate, and 0.2-0.7 parts ammonium fluoride. The system of this invention uses spodumene, calcite, bauxite, and pyrophyllite as the matrix minerals, effectively lowering the sintering temperature and providing basic strength to the system. At a lower firing temperature, a high degree of sintering of the glaze layer can be ensured, preventing sintering failure of other materials. By adding modified magnesium borate whiskers and wet-process mica powder, the flexural strength is effectively improved.
Owner:GUANGDONG OVERLAND CERAMICS CO LTD

Efficient activation device and method for palygorskite

PendingCN121571248AGrain treatmentsDrive wheelEccentric annulus
The invention discloses an efficient activation device and method for palygorskite, and belongs to the technical field of palygorskite activation. The device comprises a rack, an outer barrel is fixedly mounted on the rack, an inner barrel is arranged in the outer barrel, and a driving frame is rotationally mounted on the rack; the driving frame comprises two driving wheels located on the left side and the right side of the outer barrel respectively, one end of the rubber sleeve is connected with one end of the inner barrel, and the other end of the rubber sleeve is connected to an opening of the driving wheel. The eccentric ring is arranged on the driving wheel in a sliding manner; a partition assembly is arranged in the inner barrel in a sliding mode and divides an inner cavity of the inner barrel into a coarse grinding cavity on the left side and a fine grinding cavity on the right side. The efficient activation device and method for the palygorskite have the beneficial effects that through the arrangement of the driving frame and the inner barrel, raw materials not only roll in the inner barrel, but also move left and right along the inner barrel, so that the materials and grinding balls can move more sufficiently, and the problem that the materials or the grinding balls are concentrated is effectively avoided.
Owner:ZHANGYE SENXUXIN MATERIALS CO LTD

Attapulgite-based mineralized water agent

The application is a divisional application of 2022109403727. The application discloses a palygorskite-based mineralized water agent, which has a core-shell structure, and the content of the core is 75-90 wt%, wherein the core is a particle composed of the following components: palygorskite, lithia tourmaline, medical stone, serpentine, wood fish stone, hexacyclic stone and montmorillonite; the shell is composed of the following components: hydroxyapatite, tyrosine and methionine. Compared with the prior art, the mineralized water agent can not only increase beneficial substances such as strontium, selenium, zinc and lithium in drinking water, but also reduce fluorine, iron and manganese.
Owner:NORTHWEST NORMAL UNIVERSITY +1

Mining and metallurgy solid waste-based shrinkage-compensating freeze-thaw-resistant concrete and preparation method thereof

The invention discloses mining and metallurgy solid waste-based shrinkage-compensating freeze-thaw-resistant concrete and a preparation method thereof, and belongs to the technical field of building materials. The freeze-thaw resistant concrete is prepared from the following components in parts by weight: 300 to 400 parts of cement, 150 to 200 parts of mineral admixture, 10 to 20 parts of expanding agent, 10 to 15 parts of granular foam stabilizer, 600 to 700 parts of fine aggregate, 1000 to 1300 parts of coarse aggregate and 4.5 to 12 parts of air-entraining type water reducing agent, the granular foam stabilizer is prepared from nano SiO2, palygorskite whiskers and cellulose ether. The concrete disclosed by the invention has better mechanical property and freezing resistance while ensuring good volume stability, meets the durability requirement on the concrete in the salt freezing environment in the northeast region, and can be used in long-life projects in the service environment.
Owner:SHENYANG JIANZHU UNIVERSITY

Production method and equipment for preparing unfired ceramsite by using attapulgite

According to the production method and equipment for manufacturing the unfired ceramsite by utilizing the attapulgite, the cement provides basic strength support, the acidified attapulgite clay interacts with the cement and other materials, the internal structural stability of the ceramsite is enhanced, meanwhile, the overall strength of the ceramsite is further improved by adding the reinforcing agent, and the ceramsite has the advantages that the strength of the ceramsite is improved, and the service life of the ceramsite is prolonged. The requirements on the material strength in the fields of sewage treatment, constructed wetlands and the like can be met; the used disc granulator adopts a double-disc structure of an inner disc and an outer disc, the inner disc is used for granulation, the outer disc is used for shape adjustment, and the inner disc and the outer disc act together, so that the final ceramsite is very round in shape, the quality of finished products is greatly improved, continuous and uninterrupted granulation operation can be performed due to the stacked design of the inner disc and the outer disc, and the working efficiency is very high.
Owner:甘肃森续环境科技有限公司

Catalyst for preparing cyclohexanone by dehydrogenation of cyclohexanol and its preparation method

The application belongs to the technical field of catalysts, and particularly relates to a cyclohexanol dehydrogenation cyclohexanone catalyst and a preparation method thereof. The application first uses hydrochloric acid to perform acid modification treatment on a palygorskite, then performs a hydrothermal synthesis reaction with copper chloride to obtain a palygorskite carrier material containing copper oxide quantum dots, and then performs liquid phase co-precipitation treatment on the carrier material to obtain a three-dimensional layered double hydroxide, so as to obtain the cyclohexanol dehydrogenation cyclohexanone catalyst, which not only improves the specific surface area of the catalyst, but also obtains a good cyclohexanol conversion rate and cyclohexanone selectivity.
Owner:HUNAN DONGWEI CHEM NEW MATERIAL CO LTD

Saline-alkali soil conditioner and preparation method thereof

The invention provides a saline-alkali soil conditioner and a preparation method thereof. The preparation method comprises the following steps: S1, preparing polystyrene microspheres coated with polyethyleneimine; s2, preparing attapulgite of which the surface is grafted with TEMPO oxidized cellulose, and then carbonizing the attapulgite to obtain a carbon-coated attapulgite composite material; s3, preparing composite aerogel; s4, bacillus pasteurii and azotobacter chroococcum are loaded on the composite aerogel, and the saline-alkali soil conditioner is obtained. The double strains are loaded on the composite aerogel, controlled release and slow release of the strains are achieved, in addition, the two microbial agents serve as dominant flora, breeding of harmful pathogens in soil can be inhibited, soil micro-ecological balance can be adjusted, and a healthy rhizosphere environment is created for follow-up crop planting.
Owner:TARIM UNIV

Thermoplastic resin composite material and preparation method thereof

PendingCN121471621AThermoplasticPolymer science
The invention relates to a thermoplastic resin composite material and a preparation method thereof.The thermoplastic resin composite material is prepared through the following steps that copper oxychloride, sodium hydroxide, absolute ethyl alcohol and deionized water are added into a reaction vessel for a reaction, a solution A is obtained, filtered, washed and dried, mesoporous copper oxide is obtained, palygorskite is placed in a crucible to be ground into powder, the powder is sieved through a 500-mesh sieve, and the mesoporous copper oxide is obtained; adding tartaric acid, salicylaldehyde, mesoporous copper oxide, the palygorskite powder, absolute ethyl alcohol and deionized water into a reaction vessel for reaction to obtain a solution B, filtering, washing and drying to obtain a functional filler; the thermoplastic resin, the functional filler and the antioxidant are mixed and stirred uniformly to obtain a mixture, and the mixture is extruded and granulated from an extruder to obtain the composite material. The thermoplastic resin composite material has good antibacterial performance and VOC performance.
Owner:NINGBO HUATENG SHOUYAN NEW MATERIAL CO LTD

Preparation method of acid-ultrasonic synergistic activated attapulgite and application of acid-ultrasonic synergistic activated attapulgite in dye wastewater treatment

PendingCN122032484AOther chemical processesWater contaminantsActivated attapulgitePalygorskite
The invention relates to the technical field of attapulgite, and provides a preparation method of acid-ultrasonic synergistically activated attapulgite and application of the acid-ultrasonic synergistically activated attapulgite in dye wastewater treatment, the preparation method of the acid-ultrasonic synergistically activated attapulgite comprises the following steps: S1, pretreatment: purifying attapulgite less than or equal to 2mm, and drying at 105 DEG C after purification; s2, a sulfuric acid solution with the concentration of 1-2 mol / L is prepared and mixed according to the solid-to-liquid ratio of 1: 8-1: 10, and ultrasonic treatment is carried out for 120-160 min under the conditions of 40-60 kHz and 120-150 W / L at the temperature of 40-60 DEG C; s3, filtering and washing until the pH value is 3-5; and S4, drying at 110 DEG C, and calcining at 200-400 DEG C for 1-2 hours.
Owner:INNER MONGOLIA SAIDE TECHNOLOGY CO LTD

Lightweight autoclaved aerated concrete block

The invention discloses a lightweight autoclaved aerated concrete block, and relates to the technical field of concrete blocks, the lightweight autoclaved aerated concrete block comprises the following raw materials: cement, lime, a base material, modified palygorskite, calcium sulfate dihydrate, aluminum powder paste, a foam stabilizer and deionized water; the modified palygorskite is added, and a fibrous structure of the modified palygorskite can form a network skeleton in slurry, fill internal pores and block capillary channels, so that the overall structural compactness and the surface strength of the building block are improved, and the drying shrinkage rate and the water absorption rate can be reduced; by adding the foam stabilizer, sodium alkyl benzene sulfonate in the foam stabilizer can reduce the surface tension of the slurry and promote the generation of a large amount of bubbles; the nano silicon dioxide can form a rigid supporting framework in a bubble liquid film, so that bubbles are prevented from being combined or broken; the polyvinyl alcohol forms an elastic protective film on the surface of the bubble, so that the service life of the foam is prolonged, the closed porosity of the building block is greatly improved, the lightweight characteristic of the building block is guaranteed, the drying shrinkage rate is reduced due to the pore uniformity, and the impermeability and the overall strength are improved.
Owner:YANAN WANSHENG NEW BUILDING MATERIALS CO LTD

Attapulgite / calcium silicate composite material and application thereof in acidic soil remediation

The application discloses a palygorskite / calcium silicate composite material. The palygorskite / calcium silicate composite material is composed of calcium silicate and modified palygorskite, wherein the modified palygorskite is palygorskite modified by succinic acid and catechin, and the modified palygorskite is loaded on the surface of the calcium silicate. Compared with the prior art, the application combines the modified palygorskite and the calcium silicate to form a synergistic effect, so that the acid soil can be repaired efficiently, economically and sustainably.
Owner:NORTHWEST NORMAL UNIVERSITY +2

Attapulgite adsorbent material, preparation method and application thereof

The application discloses a palygorskite adsorption material and a preparation method and application thereof, and belongs to the technical field of heavy metal contaminated wastewater treatment. The palygorskite adsorption material is obtained by crushing and ball milling of palygorskite raw ore. The method improves the physicochemical properties of the palygorskite by controlling the ball milling conditions, so that the adsorption capacity of the palygorskite for heavy metal ions is improved. The removal rates of the obtained palygorskite adsorption material for Pd 2+ and Cd 2+ in an aqueous solution are nearly 6 times and 4.5 times higher than those of the palygorskite raw ore respectively.
Owner:CENT SOUTH UNIV

Film containing modified graphene and preparation method thereof

The invention relates to a film containing modified graphene and a preparation method thereof, and belongs to the technical field of polymer composites.The preparation method comprises the steps that composite graphene powder, azobenzene compounds containing silane and silane containing double bonds are subjected to reaction grafting; the modified graphene and low-density polyethylene particles are subjected to melt blending and film casting to obtain a film containing the modified graphene, so that an azobenzene compound containing silica is uniformly dispersed in the film, and azobenzene molecules can be converted into bent cis-isomers under ultraviolet irradiation; isomerization can lead to reduction of the molecular level arrangement sequence of azobenzene and change of intermolecular spacing, so that the thin film is bent towards light, and under the irradiation of visible light, azobenzene is isomerized from cis to trans, and the thin film material is recovered to the original shape; a one-dimensional rod-like structure of the attapulgite and a two-dimensional lamellar structure of the graphene oxide form a rod-sheet synergistic enhancement structure, so that agglomeration is prevented, and the dispersity of the graphene oxide in a film matrix is improved.
Owner:TAIXING ZHIFU DISPLAY TECH CO LTD

Attapulgite-chitosan oligosaccharide composite carrier and preparation method thereof

The invention belongs to the field of inorganic-organic composite carrier materials, and provides an attapulgite-chitosan oligosaccharide composite carrier and a preparation method thereof. According to the invention, gamma-glycidyl ether oxypropyl trimethoxy silane is subjected to hydrolytic polycondensation to form a silane coupling layer on the surface of attapulgite, and chitosan oligosaccharide is covalently grafted through an epoxy group ring-opening reaction to construct a design of a double-layer covalent connection shell layer; according to the preparation method, accurate regulation and control of the shell thickness of 2-30nm under the condition that the mass ratio of chitosan oligosaccharide is 0.05-0.40 are realized, the particle size D50 is controllable in a range of 0.20-2.00 m, the apparent viscosity of 20wt% slurry is 50-500mPa. S, the PDI of powder after spray drying is reduced to 0.05-0.35, the water content is controlled to be 0-8wt%, and the particle size D50 is controllable in a range of 0.20-2.00 m. The coupling contradiction that an existing attapulgite carrier is difficult to consider high-proportion stable introduction of chitosan oligosaccharide, low-viscosity spray processing, particle size PDI degradation, moisture absorption and caking and the like is solved, and the attapulgite carrier has wide application value in the fields of pesticides, food additives, bioactive substance controlled-release carriers and the like.
Owner:JIANGSU SINITIC BIOLOGICAL TECH CO LTD

Attapulgite-bentonite vertical antifouling barrier as well as preparation method and application thereof

PendingCN120965259ASoil sciencePalygorskite
The invention belongs to the technical field of civil and environmental engineering, and discloses an attapulgite-bentonite vertical antifouling barrier as well as a preparation method and application thereof. The high-strength concrete comprises concave expansion composite soil slurry and ardealite-cement-soil slurry in a mass ratio of 1: 1, the concave and expanded composite soil slurry comprises attapulgite, bentonite and a solution, wherein the mass ratio of the attapulgite to the bentonite is 1: 1. The vertical antifouling barrier disclosed by the invention has the characteristics of high salt stability, low permeability, high-strength synergy, high pollutant adsorption capacity, excellent ecological adaptability and high field adaptability.
Owner:JIANGSU UNIV

Formula and preparation method of building block capable of circularly adsorbing nitrogen and phosphorus

The invention relates to a formula and a preparation method of a building block capable of circularly adsorbing nitrogen and phosphorus, and belongs to the technical field of environmental functional materials. The building block is prepared from the following raw materials in percentage by weight: 70-80% of dolomite attapulgite, 10-25% of sawdust, 3-5% of powdery magnesium calcium carbonate, 3-5% of powdery magnesium chloride hexahydrate, 1-2% of rhenium heptoxide, 1-2% of titanium dioxide and 2-5% of a polyimide adhesive, and is soaked in a sufficient 0.05 mg / mL magnesium oxide standard solution; the preparation method comprises the following steps: mixing raw materials, dipping in a magnesium oxide solution, drying, mixing with other raw materials, carrying out plastic forming, and pyrolyzing at 700 DEG C for 20-30 minutes under the protection of nitrogen. The building block has a porous structure, is large in specific surface area and rich in surface functional groups, can efficiently adsorb ions such as NH4 < + >, NO3 <-> and PO4 < 3-> in urban non-point source polluted water, can be analyzed and released under the action of plant root exudates, provides nutrients for plants, realizes cyclic utilization of nitrogen and phosphorus resources, can be used for scenes such as urban green belts and river channel protection slopes, and has a wide application prospect. The runoff pollution is effectively reduced.
Owner:YATE LANDSCAPE ENG GRP CO LTD

Attapulgite organic modified polyferric flocculant, preparation method and application thereof

ActiveCN118373504BPalygorskiteIron chloride
The application discloses a palygorskite organic modified polyferric flocculant, a preparation method and application thereof, and the preparation method of the flocculant comprises the following steps: activating palygorskite with hydrochloric acid, modifying the palygorskite with a silane coupling agent, copolymerizing the modified palygorskite with ferric chloride and sodium hydroxide alkalization, and obtaining the palygorskite organic modified polyferric flocculant through standing, curing and calcining of the product. The flocculant has the advantages of low cost, simple synthesis method, mild reaction condition, good treatment effect, effective reduction of the dosing amount, improved water treatment capacity, excellent removal rates of COD and heavy metal antimony of printing and dyeing wastewater. After the printing and dyeing wastewater is treated by the flocculant, the optimal removal rate of COD reaches 73.2%, and the total antimony removal rate reaches 98.53%.
Owner:ZHEJIANG UNIV OF TECH

Low-silicon low-iron high-purity alumina ceramic ball and preparation method thereof

The invention discloses a low-silicon low-iron high-purity alumina ceramic ball and a preparation method thereof, and belongs to the technical field of special ceramic materials. The ceramic ball is prepared by carrying out ball milling, oil ammonia column forming, drying and segmented roasting on aluminum hydroxide slurry prepared by hydrolyzing high-purity aluminum isopropoxide, palygorskite powder, a sintering aid, a dispersing agent, a binder and a pore-forming agent in a specific proportion, and the aluminum hydroxide slurry, the palygorskite powder, the sintering aid, the dispersing agent, the binder and the pore-forming agent are subjected to ball milling, oil ammonia column forming, drying and segmented roasting. Compared with the prior art, the preparation method effectively solves the problem that high porosity, high strength and high-temperature stability are difficult to consider in the traditional method, improves the porosity of the obtained alumina ceramic ball, reduces the reheating linear change rate, has excellent mechanical strength, chemical inertness and thermal shock resistance, and is suitable for industrial production. The catalyst is especially suitable for catalyst support and tower packing in a severe environment.
Owner:DOHNTEC CERAMICS LTD

Composite photocatalytic material, preparation method and application thereof

The present application relates to the technical field of photocatalytic treatment of antibiotics in wastewater, and particularly relates to a composite photocatalytic material, a preparation method and application thereof. Melamine, palygorskite and water are mixed to obtain a mixed solution; the mixed solution is mixed with melamine foam, and after the melamine foam absorbs the mixed solution, drying is performed to obtain a precursor; the precursor is calcined to obtain the composite photocatalytic material. The composite photocatalytic material prepared by the present application can effectively improve the performance of the material in adsorbing antibiotics in water, enhance the photocatalytic degradation activity, and is easy to recycle, thus having a broad development prospect.
Owner:YANCHENG INST OF TECH

Binder, application and method for producing large-size super-high-porosity dense alumina honeycomb ceramics

The present application relates to the technical field of honeycomb ceramics, in particular to a bonding material, application and preparation method of large-specification super-high-pore-density dense alumina honeycomb ceramics. The composition of the bonding material comprises low-melting-point glass powder, spherical alumina powder, inorganic gel, palygorskite powder, silica sol and water. The bonding material can realize low-temperature sintering, significantly reduce energy consumption and avoid the unit block cracking problem of super-high-pore-density dense alumina honeycomb ceramics caused by secondary high-temperature sintering; and make the bonding material have an ultra-long shelf life without using organic suspending agents; the method can realize the preparation of super-large-specification products, sinter a plurality of unit blocks at one time, and significantly reduce production cost.
Owner:SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH +2

Modified palygorskite, method for preparing same, composition for asphalt waterproof coating, asphalt waterproof coating, method for preparing same, and application thereof

The application relates to the technical field of building waterproofing, and discloses modified attapulgite, a preparation method of the modified attapulgite, a composition for asphalt waterproof coating, asphalt waterproof coating, a preparation method of the asphalt waterproof coating and application. The preparation method of the modified attapulgite comprises the following steps: mixing and treating a dispersion medium in which a modifier is dispersed and attapulgite at 90-110 DEG C to obtain the modified attapulgite; the modifier is selected from cerium stearate and / or lanthanum stearate; and the mass ratio of the attapulgite to the modifier is 1:0.03-0.2. The asphalt waterproof coating provided by the application can form a three-dimensional network structure through 'interface vulcanization', and can endow the product with higher shearing resistance and bonding strength, and can effectively resist the overall slippage of the waterproof layer.
Owner:DEZHOU KESHUN BUILDING MATERIALS CO LTD

Silicon-based adsorbents and their application in the treatment of food waste incineration exhaust gas

To provide a silicon-based adsorbent capable of effectively adsorbing dioxins in exhaust gas from incinerating food waste, a method for producing the same, and applications thereof. [Solution] A silicon-based adsorbent and its application in the treatment of exhaust gas from food waste incineration is disclosed. The silicon-based adsorbent has a polymer-modified composite clay base with humic acid supported on the surface, the composite clay being a combination of palygorskite, chlorite, and illite. The silicon-based adsorbent of the present invention has excellent adsorption performance for dioxins and can maintain good mechanical properties even in alkaline and neutral environments, effectively solving the problem that humic acid is highly soluble in neutral and alkaline environments, expanding the application range of the adsorbent, and effectively improving the adsorption rate for dioxins.
Owner:GUANGZHOU XINCAI TECHNOLOGY CO LTD

Palygorskite purification device

The invention relates to the technical field of palygorskite preparation, and discloses a palygorskite purification device which comprises a main shell, a centrifugal tank is arranged in the main shell, the top of the main shell is fixedly connected with an upper shell, the bottom of the centrifugal tank communicates with a discharging pipe, the bottom end of the discharging pipe penetrates through and extends to the outside of the main shell, and the upper shell is fixedly connected with the lower shell. And a movable pipeline is rotationally connected to the interior of the centrifugal tank. According to the palygorskite purifying device, the stirring and mixing function and the high-speed centrifugation function are integrated, and seamless switching of two working modes is achieved through the ingenious driving switching assembly. The tedious step of transferring materials among different devices in a traditional process is avoided, the production period is remarkably shortened, and the overall operation efficiency is improved. By adopting the nested design of the movable pipeline and the centrifugal tank, combining with the support of the annular sliding rail and the limiting ring and the limiting of the connecting seat, the dynamic balance and stability of the equipment under high-speed operation are ensured, the vibration is small, the noise is low, and the service life is long.
Owner:JIANGSU HUIXIN ATTACHED CLAY CO LTD