505 results about "Attapulgus clay" patented technology

A feedstream to a hydrocracking unit is treated to remove or reduce the content of polynuclear aromatics and nitrogen-containing compounds by contacting the feedstream with an adsorbent compound selected from attapulgus clay, alumina, silica gel and activated carbon in a fixed bed or slurry column and separating the treated feedstream that is lower in the undesired compounds from the adsorbent material. The adsorbent can be mixed with a solvent for the undesired compounds and stripped for re-use.

A composite adsorbent of attapulgus clay-aluminum hydroxide/iron nano-scale and a preparation method and application thereof are provided. The composite adsorbent is characterized in that prepared by loading aluminum hydroxide or mixture of hydroxides of aluminum and iron on the surface of attapulgus mineral, the aluminum hydroxide or the mixture of hydroxides of aluminum and iron has a content of 5-50wt% in the adsorbent; and the content of aluminum hydroxide in the mixture is not lower than that of iron hydroxide. The composite adsorbent has high adsorption capacity to P, As and F in water, and can be used for deep dephosphorization treatment of waste water from domestic sewage treatment plants, dephosphorization of eutrophic water bodies and treatment of high-As or high-F ground water.

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 relates to a purification technical method for attapulgite clay. The purification technical method comprises the following steps of: putting an active agent serving as a dispersion agent between the crystal faces of the attapulgite clay, so that the bonding force between crystal layers is weakened, and crystal stacked layers are released; applying proper mechanical action to fully separate attapulgite clay from impurities such as sand, and achieving a preliminary purification effect; then separating impurities such as dolomite and quartz in attapulgite clay powder by taking inorganic salt as a purification agent through adsorption and electrochemical action; and complexing inorganic salt and multivalent ions such as ferrum, copper, calcium and magnesium to form a stable water-soluble complex, wherein under the complexing action, color change caused by metal is prevented, and the purpose of improving the color of the attapulgite clay powder is fulfilled; and therefore, the attapulgite clay with the purity of over 99.5 percent is obtained.

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 present invention discloses a compound of paligorskite health-care sand for carrier pigeon. Its composition includes the following ingredients: (by weight portion) 18-22 portions of paligorskite, 34-37 portions of river sand, 12-13 portions of oyster shell powder, 9-11 portions of bone powder, 4-6 portions of edible salt, 10-11 portions of Chinese medicinal materials, 2-3 portions of trace element, 2-3 portions of amino acid and 2-3 portions of vitamin. Said invention also provides its production method.

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 provides a drying agent for removing humidity and odor, which comprises the components by weight percent: 40-75% of ultrahigh molecular weight polyethylene, 20-55% of water absorbent and 5-40% of activated carbon, wherein the molecular weight of the ultrahigh molecular weight polyethylene is 2.5-4 million; and the water absorbent is one or compound of more in water absorption mineral substance, attapulgite clay, active carbon, anhydrous calcium chloride and activated aluminium oxide. The drying agent not only has the performance of removing humidity and odor with high efficiency, but also can be combined with other different functional agents, thus having the effects of absorbing acidic gas and alkaline gas or antibiosis, and the like.

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 discloses an efficient organic fertilizer and a preparation method thereof. The efficient organic fertilizer is prepared from the raw materials in parts by weight: 14-27 parts of pig manure, 13-18 parts of pond sludge, 14-17 parts of corn stalk, 2-8 parts of attapulgus clay powder, 3-12 parts of humic acid, 3-9 parts of oil shale, 3-9 parts of rock phosphate dust, 0.3-0.9 parts of sophora flavescens and 0.7-1.3 parts of bio-fungus. With the adoption of the efficient organic fertilizer, the crop pest incidence can be effectively lowered, and the contents of organic matters, nitrogen, phosphorus, potassium and various trace elements are increased; due to durable and strong fertilizer efficiency, the soil structure can be effectively improved, the crop yield can be increased, and the increase in yield can reach above 15 percent; the preparation method of the efficient organic fertilizer is simple, and the technical process is easily controlled.