580 results about "Palygorskite" patented technology

The invention discloses an acid modified palygorskite-polyurethane porous material as well as a preparation method and an application thereof, belonging to the technical field of synthesis of inorganic-organic materials. According to the preparation method of the acid modified palygorskite-polyurethane porous material, palygorskite is modified for preparing acid modified palygorskite, polybasic alcohol, foaming agent, a foaming stabilizer, water and a catalyst are added, mixed and uniformly stirred, then diisocyanate is added for mixing and foaming at a temperature of 50-70 DEG C, and finally the mixture is subjected to aging at the temperature of 90-105 DEG C for 1-2 hours, and after being cooled, the acid modified palygorskite-polyurethane porous material is obtained. Aiming to the characteristics of rich reserves, low cost, non-abrasion property, high chemical stability, large specific surface area and the like of palygorskite, the preparation method of acid modified palygorskite-polyurethane porous material via foaming by one step is provided. Additionally, by the adoption of the prepared acid modified palygorskite-polyurethane porous material in the absorption of cationic dye, the operation is simple, the cost is low, the absorption rate is high, and the use value is higher.

The invention provides a fertilizer synergist, which comprises the following components in parts by weight: 7%-15% of polyaspartic acid, 0.5%-2% of trace element, 30%-40% of bentonite, 10%-20% of sodium humate, 5%-15% of zeolite, 10%-20% of palygorskite, 10%-20% of glauconite, 2%-4% of thiourea and 0.1%-0.5% of nanometer carbon. The invention further provides a preparation method of the fertilizer synergist. The components of the fertilizer synergist are promoted with one another to obtain good combined effect. The fertilizer synergist does not contain any harmful chemical components and produces good effects of improving the soil and increasing the quality and yield of crops.

The invention discloses a production method of a rabbit dung-Chinese herbal medicine organic fertilizer. The production method comprises the following steps: with rabbit dung as a main organic component, fermenting, drying and crushing; then mixing the treated rabbit dung with Chinese herbal medicine extracts, sodium humate, germ bran and palygorskite, pelleting and finally drying. After the rabbit dung-Chinese herbal medicine organic fertilizer disclosed by the invention is applied, the physical and chemical properties of soil can be improved, the nutrient absorption of crops can be promoted, crop plants can thrive, the yield of the crops can be improved, the product quality can be improved, the loss of the fertilizer in the soil can be reduced, the release of the nutrients in the fertilizer can be controlled, the utilization rate of the fertilizer can be improved, the purposes of high yield and high quality can be reached, and the occurrence of diseases and insect pests of the crops can be further reduced.

The invention belongs to the technical field of in-situ repair of heavy metal contaminated soil. Municipal sludge is used for preparing sludge-based charcoal through thermophilic thermolysis. The charcoal can be used as a repairing agent for the heavy metal contaminated soil. The sludge charcoal repairing agent comprises thickened sludge and palygorskite. A final black product namely the sludge-based charcoal is produced through the steps of performing biological and physical anhydration on sludge, then mixing the sludge after the biological and physical anhydration with the palygorskite, performing feeding into an atmosphere furnace, and then performing thermophilic thermolysis. The sludge charcoal is produced from the following components of 5-10% of the palygorskite and the balance of thethickened sludge. According to the sludge charcoal disclosed by the invention, the municipal sludge is subjected to decrement and harmless treatment, so that the municipal sludge can enter cycle of material and energy in natural environment again, and the difficult problem of treating and disposing the sludge is solved. The sludge charcoal is added to the heavy metal contaminated soil, so that heavy metal contaminated substances can be effectively solidified, the purposes of being durable and stable in repairing effect and being free from secondary pollution are realized, and the sludge charcoal is an ideal soil heavy metal contamination repairing agent with low cost.

The invention discloses a method for preparing functional wallpaper by using iron-magnesium tourmaline and palygorskite. The method comprises the steps: mixing and stirring uniformly 15-20% of a polyacrylate coating agent, 1-2% of a polyacrylic acid thickener, 5-20% of an iron-magnesium tourmaline powder, 5-20% of the palygorskite, 10-20% of a calcium carbonate powder and 30-40% of water according to the mass percentage, and thus obtaining a coating paint; coating a polyester fiber base fabric with the coating paint, then printing and baking, and thus obtaining the functional wallpaper. The prepared wallpaper can release negative ions, and has the functions of purifying air and adjusting the indoor air humidity.

The invention relates to a polyaniline/attapulgite nanometer composite material and a preparation method thereof. The dimension of attapulgite powder body is between 40 nm to 400 nm, and the weight percentage thereof is 5-30 percent. The steps of the preparation method are that: the attapulgite powder body with above 85 percent of purity is firstly added with anionic surfactant and water and then quickly and well stirred to form suspension with 5-20 percent of concentration; the suspension is added with aniline salt that is acidified by protonicacid; the weight proportion of the aniline salt added and the attapulgite powder body is 20:1-4:1, and the concentration of the protonicacid is 0.5-2.5 mol/L; the suspension with aniline salt is mixed for 30 min-3 h, then added with oxidized initiator with the amount equal to 0.05-1 percent of the added aniline salt then stirred quickly to in-situ polymerize for 2-10 hours under the temperature of 5-20 DEG C, finally, kept after reaction and filtrated, washed with water for 2-4 times and vacuum dried, thus obtaining deep green power.

The invention discloses a honeycombed catalyst for low-temperature synergic denitrification, dioxin removal and mercury removal and a preparation method thereof. The honeycombed catalyst employs metatitanic acid and sulfated palygorskite as carriers, copper oxides, manganese oxides and vanadium oxides as active ingredients and rare-earth metal oxides as active aids. The honeycombed catalyst hereincan provide synergic denitrification, dioxin removal and mercury removal at the low temperature of 80-300 DEG C; under the action of the honeycombed catalyst, NOx and dioxin are selectively catalytically reduced into N2, HCl, CO2 and CO; the produced HCl is suitable for serving as a mercury removal aid; elemental mercury, CO, hydrocarbons and alkenes are thoroughly oxidized into mercury oxide andCO2; the honeycombed catalyst has denitrification rate of 95% and above and dioxin removal rate and mercury removal rate of 90% and above.

The invention discloses nickel-based catalyst taking a palygorskite as the carrier and a preparation method thereof, according to the weight percentage, the content of nickel oxide is 1 to 4 percent, ferric oxide is 5 to 20 percent, and potassium oxide is 1 to 10 percent. The nickel and the iron are supported onto the surface of the palygorskite in a way of coprecipitate adsorbing, and the catalyst is filtered, shaped, dried and calcined to obtain the finished catalyst. Under the operation condition of atmospheric pressure and 480 to 650 DEG C reaction temperature, in a fixed bed reactor, the gas production and the lytic rate of the pyrolytic tar are greatly improved, compared with the catalyst used for converting the commercial light oil vapour for hydrogen production, the prepared catalyst has the advantages of low cost, good low-temperature activity, easiness of restoration and strong anti-carbon deposition capability. The invention can be widely suitable for the hydrogen production from steam reforming of various types of paraffin in the chemical field and the chemical industry field.

Foamed polymeric compositions containing clay nucleating agents are described. The clays are preferably sepioiite, palygorskite/attapulgite, or combinations thereof. Also described are processes for forming the foamed compositions. The resulting products find particular application as insulation and packaging materials.

The invention discloses a combined self-control membrane bioreactor and a method for treating low-temperature low-turbidity high-chroma high-ammonia nitrogen source water using the same, relates to a water treatment reactor and a feed water treatment method, and aims at solving the problem that the existing low-temperature low-turbidity high-chroma high-ammonia nitrogen water treatment methods are high in cost and low in treatment capability. The combined self-control membrane bioreactor consists of a water inlet system, a membrane bioreactor water treatment system, a water outlet system, a backwashing system, a sludge discharge system and a chemical dosing device. The method comprises the steps of: I, firstly starting the combined self-control membrane bioreactor; and II, carrying out full-automatic operation. The combined self-control membrane bioreactor has the following advantages that I, the full-automatic operation is realized, the treatment cost is reduced and the treatment capability is improved; and II, the traditional powdered activated carbon is replaced by modified palygorskite which is low in cost and environment-friendly, so that the soluble organic matters can be effectively removed and the membrane pollution can be effectively slowed down. The combined self-control membrane bioreactor is mainly used for treating low-temperature low-turbidity high-chroma high-ammonia nitrogen source water.

A mineral-type nutritive demildew agent for decreasing the content of mycotoxin in food or feed contains one or more of the mixture of Na-based bentone, Ca-based bentone and NaCa-based bentone, palygorskite, sepiolite and hydrated sodium calcium aluminosilicate.

The present invention discloses carbonyl nickel powder and carbonyl iron powder on palygorskite carrier. Palygorskite with intragranular tunnel pores can adsorb great amount of small molecular weight gas, such as H2, CO, CO2 and CH4, and is favorable to the synergistic effect of carbonyl nickel powder and carbonyl iron powder and can raise the catalytic efficiency. In addition, palygorskite is one kind of alkali mineral and can inhibit carbon accumulation during use to prolong the service life of the catalyst. The preparation process is one chemical evaporation and deposition process, and Ni(CO)4 or Fe(CO)5 vapor and palygorskite powder preheated to 180-300 deg.c are made to react inside a pyrolysis oven, so that the vapor is decomposed into fine Ni or Fe particles distributed homogeneously on the surface of palygorskite. The catalyst has high catalytic activity and long service life, and is used in petroleum hydrocracking and other hydrogenation reaction.

The present invention discloses one kind of zeolite molecular sieve and its preparation process with palygorskite as material. The zeolite molecular sieve is prepared through reacting palygorskite and alkali solution in 5-20 times, and the subsequent washing and drying. The prepared zeolite molecular sieve has type controlled through altering the ratio between palygorskite and alkali solution. The process of preparing zeolite molecular sieve with palygorskite as material is simple.

The invention provides preparation of a palygorskite clay/plant stalk composite adsorbent, and belongs to the technical field of the composite material. The preparation of the palygorskite clay/plant stalk composite adsorbent provided by the invention adopts raw palygorskite ores and plant stalks as raw materials. The palygorskite clay/plant stalk composite adsorbent is prepared by carrying out hydrothermal reaction on the raw palygorskite ores and the plant stalks. The collaborative adsorption capacity of the raw palygorskite clay and plant stalk is completely utilized to greatly enhance theadsorption capacity and the adsorption speed of the adsorbent, and the cost is reduced. Though the tests, the composite adsorbent prepared by the preparation method provided by the invention has favorable purifying capacity (82%-99%) to the printing and dyeing wastewater and favorable efficiency (purification is accomplished within 0.1-2 hours), thereby being a relatively ideal sewage treating agent.

The invention discloses a nanometer silver wire conductive silver paste. According to the nanometer silver wire conductive silver paste, nanometer silver wires are used for replacing silver powder on the basis of conventional conductive silver paste. The nanometer silver wire conductive silver paste comprises 28 wt%-32 wt% of conductive silver wires, 25 wt%-40 wt% of resin, 20 wt%-30 wt% of organic solvents, 1 wt%-10 wt% of glass powder and 1 wt%-10 wt% of additives. The small quantity of the nanometer silver wires replace 65 wt% to 75 wt% of silver powder in the conventional conductive silver paste, cost is reduced, and the nanometer silver wires can form a good conductive network so that resistance can be reduced and the electrical conductivity can be improved. Besides, because metal silver content is reduced, the cohesiveness of the prepared conductive silver paste is improved to a certain extent. The combined additives of 20 wt% of carbon nanotubes, 20 wt% of carbon fibers, 20 wt% of nanometer palygorskite, 10 wt% of polyether diol and 30 wt% of tetraethyl titanate are added in, and therefore the conductivity of the conductive silver paste is optimized better while the processability of the conductive silver paste is guaranteed.

The invention discloses a soil improving agent for ecological restoration of high-and-cold arid desertification soil. The soil improving agent is prepared from the following raw materials: in parts byweight, 50-100 parts of a microbial inoculant, 500-2000 parts of biological humic acid fertilizer, 20-100 parts of inorganic fertilizer, 50-150 parts of a water-retaining agent, 10-100 parts of palygorskite, 100-300 parts of bentonite and 10-20 parts of polyaspartic acid. The invention also discloses an ecological restoration method for high-and-cold arid desertification soil, and the method comprises the steps: applying the soil improving agent as base fertilizer to the soil at an applied amount of 100-200 kg of the soil improving agent to soil per mu, then performing rotary tillage and mixing, pouring water, and performing balance for 1-2 weeks so as to construct a plant community. The soil improving agent has the advantages that soil desertification can be managed effectively, the soilstructure and environment in high-and-cold arid zones can be improved, the plant growth in the zones can be promoted, the economic benefit can be increased, and the desertification control can be promoted.

The invention discloses a heat-resistant flexible transparent conductive film and a preparation method of the film. According to the film, the surface of PET is coated with coating, and then the film is prepared after being dried . According to the formula of the coating, the coating is composed of nanometer silver wires, oleoresin, additive powder, flatting agents and a proper quantity of organic solvents. The nanometer silver wires excellent in electrical conductivity and mixed additives composed of carbon fibers, nanometer limestone powder, nanometer palygorskite powder, nanometer aluminum oxide powder and propyl gallate are adopted for improving the electrical conductivity and the heat resistance of the film. The heat-resistant flexible transparent conductive film is low in cost and raw materials are easy to obtain.

The present invention relates to an applicable load-type catalyst for purifying air at room temperature using copper, manganese and cerium as active ingredients and nano-palygorskite or nano-sepiolite powder as carriers, wherein contents of the copper, manganese and cerium account for 15%-40% of the total mass with a molar ratio of 1: 1: 1-1: 2: 4; and preparation technology includes a ultrasonic dispersion step for 1 hour, a stirring step at 30-50 DEG C for 2-4 hours, drying and activating steps at 110-120 DEG C for 5-10 hours, a calcination step in a muffle furnace at 500-800 DEG C for 3-6 hours, and a grinding step until a fineness is equal to or less than 20 microns. The applicable load-type catalyst is super strong in adsorption capacity, can continuously and effectively remove benzene, toluene and xylene (BTX), formaldehyde, CO, NO, SO2 and other harmful gases in the air, is high in processing efficiency, low in cost and wide in economic applicability, does not produce secondary pollution, and is suitable for the removal of pollutants at home, offices, hotels, conference rooms, furniture shopping malls, building material markets and other space.

The invention provides a nano-palygorskite reinforced flame retarding epoxy resin composite material which disperses the nano-palygorskite into epoxy resin matrix by means of ultrasonic dispersion by mass ratio between 1:100 and 8:100 after surface treatment is carried out to the nano-palygorskite, then mix the obtained palygorskite epoxy resin mixture with a reactive-type flame retardant by the mass ratio between 100:5 and 100:30, and casting and curing are carried out. A plurality of P-N bond intermediates formed in the reactive-type flame retardant of the invention are phosphorylating agents better than routine phosphorus compounds, and water vapor generated from nano-palygorskite acting as a synergistic flame retardant during burning is in great favor for a phosphorous flame retardant, and the reinforcement of appropriate amount of nano-palygorskite compensates for the reduction of the mechanical property of the epoxy resin caused by adding the flame retardant to some extent, serving double effect of flame retardation and reinforcement, thus, the flame retarding epoxy resin composite material of the invention has the advantages of high oxygen index, good smoke suppression effect and excellent physical and mechanical properties.

The invention relates to a stainless steel water meter shell which is cast by using a lost foam process. The fireproof paint of the lost foam comprises 15 parts of zirconite powder, 15 parts of ferrochromium powder, 12 parts of pyrophillite powder, 10 parts of bauxite, 5 parts of magnesium powder, 5 parts of limestone powder, 4 parts of brown emery powder, 1 part of white emery powder, 2.5 parts of lithium-base bentonite, 2 parts of carboxymethyl cellulose, 1 part of palygorskite, 2 parts of sodium silicate, 2 parts of aluminum sulfate, 1.5 parts of VAE (Vinyl Acetateethylene Emulsion), 0.6 part of n-butyl alcohol, 0.2 part of n-caprylic alcohol and 25 parts of water; an energy converter intubation tube with internal and external threads is arranged inside an inclined tube of the water meter shell; and after being inserted, an energy converter is not directly contacted with a water fluid, so that the service life of the energy converter is prolonged and the stainless steel water meter shell has a wide application prospect.

The invention provides a water-resistant polyvinyl alcohol (PVA)-based composite film and a preparation method thereof. The water-resistant polyvinyl alcohol-based composite film is a (PVA)-based blended composite film prepared by taking PVA as a substrate and taking carboxymethylcellulose sodium (CMC), paligorskite (PGS) clay and plant straw (ST) as fillers with a tape casting method. As proved by an experiment, the PVA-based composite film has excellent mechanical properties (tensile strength can be up to 10.22-15.87 MPa, and elongation at break is 189.09-436.60 percent) and excellent waterresistance (the water absorbing capacity is less than or equal to 10.5 percent, and moisture permeability is less than or equal to 0.59 g.mm/m<2>.h.KPa), and the application prospect of the PVA-basedcomposite film is expanded; the PGS clay and a large amount of rural waste plant straw are taken as fillers, so that the cost of the PVA-based composite film is reduced greatly; and the PVA-based composite film is prepared with the tape casting method, so that a process is simple, operation is convenient, cost is low, and industrialization is convenient.

The invention provides a preparation method for a foaming type nutrient composite water-retaining agent and belongs to the field of composite materials. Plant ash, acrylamide and palygorskite clay rude ore are adopted as raw materials, potassium persulfate is adopted as an initiating agent, N,N'-methylene-bisacrylamide and the like are adopted as cross-linking agents, ammonium bicarbonate is adopted as a foaming agent, the copolymerization of an aqueous solution is initiated through a free radical to obtain the composite water-retaining agent which has the effects of high water absorption velocity, large water absorption capacity, long water retaining time, good salinity tolerance and high gel strength. Through the addition of the natural fertilizer plant ash, the water-retaining agent isendowed with the advantage of being rich in nutrient elements, thereby being more suitable for the fields of crop planting and desertification environment remediation. The palygorskite clay rude ore is adopted as the main raw material, the addition of inorganic substances is high, so as to greatly reduce the cost of the water-retaining agent; besides, the preparation technology of the composite water-retaining agent is simple, the operation is convenient, and industrialization is facilitated.

The invention provides a multifunctional palygorskite base adsorbing material, which takes palygorskite clay as a carrier, a compound of cane sugar, beta-cyclodextrin and chitosan as a carbon source, and ammonium ferrous sulfate hexahydrate as a catalyst, and is prepared by a direct roasting method. Proven by experiments, the composite material has the efficacy of efficiently removing organic matters, heavy metal ions, colors and odors. Thus, the composite material has great application potential in the aspects of treating wastewater, such as toxic organic matters, heavy metal ions, dyes and the like.

The present invention provides one kind of composite fireproof polypropylene material and the composite fireproof polypropylene material is prepared with composite attapulgite clay fire retardant and polypropylene, and through mixing at 80-300 deg.c. The attapulgite clay with microporous structure makes the composite fireproof polypropylene material possess the functions of high efficiency, low cost, low toxicity, less smoke, no environmental pollution, high heat stability, excellent machining performance, etc.