8932 results about "Montmorillonite" patented technology

Oxidative sorbents are provided for adsorbing elemental or oxidized mercury from mercury-containing fluids such as flue gas from a coal-burning power utility or the like at a temperature range of about 50 to 350 ° C. The method of preparing and using the oxidative sorbents is also provided. The oxidative sorbent compositions include one or more silicates capable of cation exchange with a plurality of active metal cations and their counter anions. The silicates may include those selected from clays such as montmorillonite, laumonite, bentonite, Mica, vermiculite and kaolinite, and from silica gels, natural and synthetic molecular sieves, zeolites, and ashes from stoker- and pulverized coal-fired boilers. The one or more oxidative metal halides and/or sulfates may be selected from the group consisting of CuCl, CuBr, CuCl₂, CuBr₂, CuSO₄, FeCl₂, FeCl₃, FeSO₄, Fe₂(SO₄)₃, ZnCl₂, ZnBr₂, NiCl₂, and NiSO₄. The oxidative sorbents may also include activated carbon.

The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate such as a zeolite. The agent removes mercury from process streams. The ion exchange to deposit the polyvalent metal on the substrate is preferably performed at a pH above the pH_ZPC.

The present invention utilizes a combination of a porous carrier and inorganic material is selected from the group consisting of diatomaceous earth, glass powder or fibers, precipitated or fumed silica, kaolin and montmorillonite clays, and Ca exchanged permutites to make a more effective hemostatic device to treat wounds in mammalian animals. These hemostatic devices provide a lower heat rise to the skin as compared to direct application of zeolites to the skin.

The present invention is preparation process of polyamide/nanometer montmorillonite base material. The polyamide/nanometer montmorillonite base material comprising montmorillonite 1-30 wt% and polyamide 70-99 wt% is prepared with deionized water in 9-15 times the weight of montmorillonite as the intercalating agent, and through mixing purified montmorillonite with deionized water to form slurry, adding molten polyamide, blending at 210-300 for 10-60 min, and pelletizing. The polyamide/nanometer montmorillonite base material has simple preparation process, low production cost and high stripping performance.

The invention belongs to the field of adsorbing materials, and relates to an inorganic-inorganic hybrid material, particularly a graphene/clay composite material. The composite material is powdery, is compounded from porous graphene and clay, and has a porous structure; the porous graphene is inserted among clay layers through intercalation reaction; the mass ratio of the porous graphene to the clay is 1:(0.1-10); the specific area of the graphene/clay composite material is 200-250 m<2>/g, and the weight loss within 900 DEG C is 3-6 wt%; and the clay is montmorillonite, vermiculite, illite, kaolin or rectorite. The graphene/clay composite material can be easily dispersed, can be used for comprehensively and efficiently adsorbing heavy metals and organic substances, and has the characteristics of high dispersity and efficient and selective adsorbability for heavy metals and organic substances; the maximum comprehensive removal rate can reach 99%; and thus, the invention has wide prospects in industrialized application.

The invention provides a modified polylactic acid material and a preparation method and application thereof. The modified polylactic acid material comprises the following raw materials in part by weight: 40 to 70 parts of polylactic acid, 10 to 20 parts of thermoplastic polyester elastomer, 10 to 20 parts of plasticizer and 10 to 20 parts of organic or inorganic filler, wherein the thermoplastic polyester elastomer is polyester thermoplastic polyurethane; the plasticizer is one or two of tributyl acetocitrate, epoxidized soybean oil, propylene glycol polyester adipate or dioctyl maleate; and the organic or inorganic filler is one or more of starch, talcum powder, calcium carbonate, mica, montmorillonite, clay or titanium dioxide. The modified polylactic acid material has the advantages of improving the flexibility of a polylactic acid material and reducing the cost of a biodegradable material. A mechanical performance test shows that in the modified polylactic acid material, the tensile strength is 15 to 70 MPa and the fracture tensile rate is 20 to 38 percent.

The invention discloses a full-biodegradable composite as well as a preparation method and application of the full-biodegradable composite. The full-biodegradable composite comprises the following components: 5-40 parts of inorganic filler full-biodegradable masterbatches, 40-80 parts of biodegradable copolyester, 10-40 parts of polylactic acid and 0.1-5 parts of a compatilizer, wherein the inorganic filler full-biodegradable masterbatches comprise the following components: 20-80 parts of the biodegradable copolyester, 20-80 parts of inorganic filler, 0.1-10 parts of a lubricating agent and 0.1-5 parts of the compatilizer; and the inorganic filler is one or a combination of modified kaolin, modified white carbon black and modified montmorillonite. According to the full-biodegradable composite, the modified montmorillonite, the modified kaolin or the modified white carbon black is added as an enhancer, and an epoxy acrylic copolymer is introduced as the compatilizer, so that the compatibility of inorganic filler and matrix resin is enhanced, and the uniform dispersion is achieved; and the masterbatches are added into the matrix resin, so that the problem of relatively low tearing strength of a blend film and a sheet can be effectively improved.

A special controlled-release fertilizer for long-acting corn and its preparation method. The fertilizer core accounts for 80-92% of the total weight of the fertilizer, wherein the weight sum of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer calculated by pure nitrogen, phosphorus pentoxide and potassium chloride is the fertilizer 25%-50% of the total weight, the weight ratio is: 2-4:1-2:1-3; the coating coating accounts for 8-20% of the total weight of the fertilizer, including: 69.5-93% sulfur, 530 % polyethylene wax, 0.5-2% leveling agent. Melt sulfur, add montmorillonite and stir evenly, then add leveling agent, stir evenly to form molten sulfur. The molten sulfur and polyethylene wax are simultaneously sprayed on the surface of the fertilizer core to form a slow-release coating layer. The process occupies less land, requires less investment in equipment, and consumes less energy. It has the characteristics that one fertilization can meet the nutrient needs of corn throughout the growth period. The fertilizer effect is long and safe, and fertilization is simple.

The invention provides a pig feed capable of preventing piglets from diarrhea. The pig feed comprises a feed carrier, nano-montmorillonite, acidifier, a probiotic additive, propolis, fish meal, zinc sulfate, chromium nicotinate, methionine, lysine, choline chloride, salt, vitamin A, vitamin E, riboflavin and a traditional Chinese medicine feed additive. The use of the pig feed can decrease diarrhea rate, reduce the occurrence of diseases, promote the fast growth of piglets and increase economic benefits of farmers.

Disclosed is an inorganic medicine, particularly modified montmorillonite, method for preparing the same and use thereof. The said modified montmorillonite means that dioctahedron of natural montmorillonite is not destroyed and basic chemical composition for the same is not changed, and the microstructure stacked from dioctahedron layer is changed to decrease the thickness of stacking layer and to expose and increase the end face charge and the interlayer charge of montmorillonite, thereby resulting in its lower degree of C axis order. The present medical use of montmorillonite is thus significantly strengthened, particularly the reversal treatment effect on chronic atrophic gastritis. Also disclosed are a medicine composition containing modified montmorillonite and the reversal treatment effect of natural montmorillonite on chronic atrophic gastritis.

The present invention relates to a high heat conductivity shaped phase change heat storing material suitable for large scale production, and belongs to the field of phase change material for building. The present invention consists of phase change heat storing material paraffin of phase change temperature 15-70 deg.c in 50-80 wt%; high molecular weight support material polyethylene, polypropylene, SBS and/or SEBS in 10-30 wt%; machining modifier alumina, montmorillonite, diatomite, clay, titania powder, calcium carbonate, bentonite and/or silica in 5-20 wt%; and heat conducting additive metal powder or graphite powder 5-15 wt%. The material may be well produced in large scale, has excellent heat conducting performance and is especially suitable for use in building.

The present invention relates to a biostimulatinq agent comprising natural minerals having ion-exchanges and sorption properties, and also a biologically active vegetable stock, the natural minerals including a clinoptylolite-heulandite zeolite containing not less than 92 wt % of clinoptylolite, and/or montmorillonite clay containing not less than 92 wt % of montmorillonite, and as the biologically active vegetable stock comprises wheat bran, rye bran, oats, Japanese laminaria, madder, birch fungus, and the like.The biostimulating agent of the present invention normalizes the mineral balance of the body, produces higher therapeutical effect, for example, in using it in case of intestinal tract diseases, aterosclerosis, urinary calculosis, produces an immune-modulating and tonic effect.

The present invention provides powder compositions comprising from 20 to 90 phr of one or more than one silicone resin having a glass transition temperature (Tg) of at least 40° C., from 10 to 80 phr of one or more than one resin chosen from glycidyl functional acrylic resin, mixtures of aromatic epoxy resin or novolac resin with carboxyl functional acrylic resin carboxyl functional polyester resin or glycidyl functional acrylic resin, and one or more than one filler, such as wollastonite, barium sulfate, mica, talc, alumina, layered silicates like montmorillonite, and mixtures thereof. The one or more than one silicone resin may or may not be flaked and may or may not contain silanol groups. The compositions of the present invention provide single layer or multilayer powder coatings that are free of voids larger than 30 μm in diameter, and which may meet the UL Class H (180° C.) certification for electrical insulation applications. Further, the compositions may be used to provide powder coatings, films, moldings, electrical potting compounds and electrical encapsulation compounds.

The invention discloses a mycotoxin detoxification agent for feed and a preparation method and a feed additive thereof, and belongs to the field of feed additives. The mycotoxin detoxification agent can be used for detoxification of feed raw materials and compound feed of mycotoxin polluted corn, grains and the like. The mycotoxin detoxification agent consists of modified montmorillonite, yeast cell wall, chitosan and the like; and the preparation method has simple process. The novel mycotoxin detoxification agent for feed can effectively remove pollution of multiple mycotoxins such as aflatoxin, zearalenone, T2 toxin, vomitoxin and the like in the feed raw materials and the feed of the corn, the grains and the like, and prevent various diseases of livestock and poultry because of eating the mycotoxin polluted feed. The mycotoxin detoxification agent has simple preparation process, stable and controllable quality, convenience in use and low price, meanwhile has the advantages of supplementing nutrients, improving the disease resistance of cultured animal bodies and avoiding adsorbing nutrient elements in the feed, and guarantees the health and safety of the cultured animals.

The invention relates to a preparation method of biological active montmorillonite powder and an application of the biological active montmorillonite powder serving as a feed additive in feed. The preparation method comprises the following steps: adding the montmorillonite powder in a fermentation medium of probiotic so as to carry out fermentation together with the probiotic; and arrying out sedimentation, centrifugation, drying and crushing on fermentation products, thus obtaining the biological active montmorillonite powder containing the probiotic and metabolic product of the probiotic. In the invention, the obtained biological active montmorillonite powder is mixed with a premixed material, a concentrated material, a complete feed or the raw material of the product at 5-50g in each ton of complete feed, after the biological active montmorillonite powder is fed to animals, the growth of the animals can be enhanced, diarrhea can be prevented, especially the growth of weaned pigs isenhanced and the diarrhea of the weaned pigs can be prevented.

The invention discloses a purifying method of pure montmorillonite from natural alta-mud, which is characterized by the following: making the separating and purifying technique of montmorillonite from alpha quartz and square quartz easier; improving the purity of montmorillonite not less than 95%.

The invention discloses a spherical montmorillonite mesoporous composite carrier and a preparation method thereof, a supported benzenesulfonic acid catalyst and a preparation method thereof, an application of the catalyst in an esterification reaction, and a preparation method of ethyl acetate. The spherical montmorillonite mesoporous composite carrier contains montmorillonite and a mesoporous molecular sieve material, average particle size of the spherical montmorillonite mesoporous composite carrier is 30-60 micrometers, the specific surface area is 150-600 square meters/gram, pore volume is 0.5-1.5 milliliters/gram, aperture distribution is trimodal distribution, most probable apertures corresponding to three peaks are 2-4 nanometers, 5-15 nanometers and 10-40 nanometers respectively. The provided supported benzenesulfonic acid catalyst has the advantages of high catalytic activity and repeated usage.

The invention provides a preparation method of an adsorption material with high selectivity on different heavy metal ions. The invention relates to a method of producing a reusable adsorption material with selectivity on such heavy metal ions as copper, chromium, lead, mercury, and the like, wherein inorganic minerals such as montmorillonite and silica are used as modified carriers, and the method comprises the following steps of: 1) pre-treating and thermally activating the carriers; 2) performing surface polymerizing on a template ion carrier; 3) performing crosslinking film covering technology on carrier surface imprinting molecules. The materials can be applied in treatment processes of mixed solutions, production water and wastewater for separating, removing and enriching specific heavy metal ions.

The invention discloses a high-performance nanometer polyurethane microcellular elastomer composite material and a preparation method thereof. Organic montmorillonite is added into polyether glycol I, heated and stirred, thus obtaining stably dispersed colloidal fluid; then polyether glycol II, an alcohols chain-extender, a foaming agent, a foam stabilizer and a catalyst are added, fully and evenly mixed, thus obtaining component A. B component is a performed polymer prepared by the reaction of the polyether glycol I, vulcabond or polyisocyanates at the temperature between 60 and 90 DEG C, with NCO percentage controlled between 17 and 26 percent by weight. The components A and B are mixed at high speed according to the weight mixture ratio that A:B equals to 0.5:1 to 3:1 by using a casting machine and at the temperature of 30-55 DEG C, and injected into a mould for injection moulding, consequently, the high-performance nanometer polyurethane microcellular elastomer composite material is obtained. With low cost, the invention improves a plurality of mechanical properties of a polyether polyurethane microcellular elastomer, such as the tensile strength, modulus and tear strength and the like, and broadens the application field of materials. The composite material can be used as shoe parts, bottom materials, bearing tires or shock absorption buffering materials, and the like. With a bi-component system and a casting moulding technology adopted simultaneously, the invention is simple and can be easily controlled, thus bringing convenience to production promotion.