5256 results about "Vermiculite" patented technology

The invention relates to interior wall putty powder with air humidity regulating function, which belongs to the field of building materials. The putty powder is composed of 10 to 50 weight portions of humidity regulating material, 15 to 50 weight portions of inorganic binding material, 15 to 50 weight portions of inorganic filler, and 1 to 5 weight portions of sub divisible rubber powder; the humidity regulating material comprises one type or more than one type of diatomite, sepiolite, attapulgite, vermiculite, zeolite powder, kaolin and bentonite. Because of the environment protection and humidity regulating functions, the multi-pore inorganic mineral material is taken as humidity regulating material and applied in the building interior wall putty powder. With water added in, the putty powder is mixed into lacquer putty and applied on the wall surface, which can effectively regulate the indoor air humidity, so that the indoor air humidity is controlled within the scope which is beneficial to the health of human body; meanwhile, the putty powder has no pollution, no VOC released and can be directly used for decoration.

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 invention discloses a seedling substrate for vegetables, belonging to the technical field of soilless culture. The substrate formula comprises the following components based on volume ratios: 10-40% of fermented vinegar dreg, 5-30% of fermented cassava dreg, 5-30% of plant ash, 5-30% of perlite, 5-30% of vermiculite and 10-25% of turf. The water content of the substrate is not bigger than 50%, and the total porosity of the substrate is 65-95%, and the total nutrient content of the substrate (N+P2O5+K2O) is 3-5%, and the grain diameter of the substrate is 0.1-4.9 mm, and the volume weight of the substrate is 0.2-0.8 g/cm3, and the gas-water ratio of the substrate is 1: 2-4, and the EC (elastic coefficient) value of the substrate is 1-3 and the pH value of the substrate is 5.8-7.5. The seedling substrate for soilless culture for vegetables mainly uses organic wastes as raw materials, and produces seedling substrate by high temperature fermentation treatment, and changes wastes into wealth, and turns harm into good. The invention has a low production cost, a light weight and complete nutrients such that it is suitable for growth and development for vegetable seedlings, and is a good substrate for soilless culture industrialized tray seedling for vegetables.

The invention relates to a medium for culturing fruits and vegetables or cultivating straw, which is characterized in that the medium consists of materials of the following volume proportion: 35-80 percent of straw leavening, 0.2-0.5 percent of chemical fertilizer, and 19.5-64.8 percent of base material, wherein, the base material is one or more of grass carbon, perlite or vermiculite, or either grass carbon or river sand. The invention provides a manufacturing method for the medium culturing fruits and vegetables or cultivating straw, which includes: 1) fermentation of the straw; 2) proportioning of materials. The manufacturing method adds a small amount of excrement of animals and even ferments with organic material-decomposing agent; the decomposed mixture is mixed with the grass carbon and fertilizer (three-element compound fertilizer or carbamide, ordinary superphosphate, diammonium phosphate) according to certain proportion to prepare the seedling culture or cultivation medium; the growth of the fruit and vegetable seedlings are good, the cost is reduced and the dependence on mineral is reduced at the same time.

A novel filtration media employing polymeric absorbents comprising a material selected from the group consisting of styrene, pentadiene, cyclopentadiene, butylene, ethylene, isoprene, butadiene, propylene and mixtures thereof; and a filtration enabler intimately mixed with the polymeric absorbent. Preferably, the filtration enabler comprises clay, ground glass, talc, mica, recycled rubber, sand, gravel, vermiculite, recycled plastic chips, an inert, non-absorbent material, or mixtures thereof. Preferably, the polymeric absorbent may be further compounded to incorporate about 10 to 50% recycled or waste plastic scrap, scrap polyolefins, inorganic fillers, or other inexpensive, relatively inert solids. Other compounding materials may include clay, talc, mica, ground glass, silica, and mixtures thereof. Upon contact with a hydrocarbon containing liquid, the liquid partially dissolves the polymeric absorbent forming a partial filtration barrier prior to the filtration media substantially absorbing the hydrocarbons, and allowing hydrocarbon-free liquid to flow through the filtration media. In situations of a leak or spill wherein an excess of hydrocarbons are present, the filtration media forms a plug to seal and prevent further discharge of the hydrocarbons. The filtration media may be placed inside a portable container for insertion into an existing drain such that hydrocarbon containing liquid is filtered through the device allowing hydrocarbon-free liquid to flow from the device. The filtration media has a thickness within the container adapted to substantially filter out hydrocarbons while capable of forming a plug in an excess of hydrocarbons. The filtration media of the present invention may be employed in pits, pipes, and self-contained cartridges of various sizes to remove and contain hydrocarbons from a hydrocarbon containing liquid or a hydrocarbon spill or leak, and that the absorbent will form a plug in an excess of hydrocarbons entering the pit, pipe or cartridge. Also described are methods of filtering and preventing discharge of a hydrocarbon containing liquid.

The present invention relates to dry refractory compositions having excellent thermal insulation values. The dry refractory composition also has excellent resistance to molten metal and slag. The composition comprises a lightweight filler material selected from the group consisting of perlite, vermiculite, expanded shale, expanded fire clay, expanded silica-alumina hollow spheres, vesicular alumina, sintered porous alumina, alumina spinel Stone insulating aggregate, ettringite insulating aggregate, expanded mullite, cordierite and anorthite, and a matrix material selected from the group consisting of calcined alumina, fused alumina, sintered magnesia, fused magnesia, Silicon fume, fused silica, corundum, boron carbide, titanium diboride, zirconium boride, boron nitride, aluminum nitride, silicon nitride, sialonite, titanium dioxide, barium sulfate, zircon, sillimanite Group of minerals, pyrophyllite, fire clay, carbon and calcium fluoride. The composition may also contain dense refractory aggregates selected from the group consisting of calcined clay, calcined clinker, minerals of the sillimanite group, calcined bauxite, pyrophyllite, silica, zircon, baddeleyite, cordierite , corundum, sintered alumina, fused alumina, fused quartz, sintered mullite, fused mullite, fused zirconia, sintered zirconia mullite, fused zirconia mullite, sintered magnesia, Fused magnesia, sintered spinel and fused spinel refractory clinker. The composition also contains a heat activated binder and a dust suppressant.

A plasterboard composition includes from 55 to 92% of hydratable calcium sulphate; from 0.1 to 5% of mineral and/or refractory fibres; from 3 to 25% of a mineral additive; from 1 to 5% of unexpanded vermiculite; and from 3 to 15% of hydrated alumina.

The invention discloses an inorganic heat insulation load-bearing concrete, belonging to the technical field of heat preservation load-bearing concrete. The invention aims at solving the problem of providing a concrete which not only can meet the requirements of stress performance of structural components of buildings, but also has good heat preservation property. The adopted scheme comprises: the concrete comprises the components with mix proportion by weight (kg/m<3>): the ratio among composite lightweight doped-aggregate, cement, sand, carpolite, ceramsite, pulverized fuel ash, water and admixture is (6-225): (200-800): (300-700): (500-1600): (150-650): (10-600): (80-400): (0.1-200); wherein the composite lightweight doped-aggregate is one or mixture of more in vitrified micro-bead, vermiculite, expanded perlite and modified expanded perlite, and has the density of (50-180)kg/m<3>. Therefore, the load-bearing concrete can be widely applied to the field of building technology.

The invention discloses an environment-friendly efficient filter filtering paper. The environment-friendly efficient filter filtering paper is prepared by the following raw materials in part by weight: 40-50 parts of softwood pulp, 30-40 parts of waste paper pulp, 20-30 parts of high-silica glass fiber, 2-5 parts of modified vermiculite, 1-3 parts of zeolite molecular sieve, 2-4 parts of nanometer calcium, 1-2 parts of modified pulverized fuel ash, 2-3 parts of water-solubility organic silicon resin emulsion, 1-2 parts of water-solubility polytetrafluoroethylene emulsion, 0.5-0.8 parts of ammonium polyphosphate, 3-4 parts of glycerol triacetate, 0.5-1 parts of diethanolamide, 0.5-1 parts of silane coupling agent KH560, 0.4-0.8 parts of sodium dodecyl sulfate, 0.5-1 parts of antioxidant DSTP, and 4-6 parts of polyethylenimine. The filtering paper prepared by the method provided by the invention has the advantages of being good in water permeability, large in filtering area, small in maximum diameter of hole, high in filtering precision, strong in bursting strength, high-temperature-resistant, good in water resistance and the like, can achieve the filtering efficiency by 99.98%, has stable performance index at atmospheric and high-temperature working conditions, as well as better temperature resistance and filtering effects.

The invention discloses a novel organic substrate and a preparation method thereof. The method comprises the following steps: using feces of beasts and birds as earthworm food; providing environment suitable for earthworms to grow; sieving the feces generated through being processed by the earthworms into earthworm feces with the grain diameter between 4 and 6 mm; and matching and adding pelhamite, perlite and trace elements for being uniformly mixed to prepare the novel organic substrate, wherein the grain diameter of the pelhamite and the perlite is between 3 and 5 mm. The novel organic substrate comprises the following ingredients in percentage by weight: 58 to 71 percent of earthworm feces, 25 to 35 percent of pelhamite, 3.5 to 6.5 percent of perlite and 0.05 to 0.5 percent of trace elements. The invention has the advantages of simple preparation method, rich resources and low price of adopted materials, changes waste materials into useful materials, reduces the environment pollution, and has sufficient nutrition and stable performance. When being used for flower culture, the invention improves the quality of the flower pit tray seedling culture, and reduces the seedling culture steps such as fertilizing and the like.

The invention belongs to the technical field of agriculture and discloses a watermelon seedling culturing substrate, which comprises the following components: earthworm cast, vermiculite, pearlstone and paclobutrazol, wherein the volume ratio of the earthworm cast to the vermiculite to the pearlstone is (2-3):0.6:0.4; and the dosage of the paclobutrazol is between 10 g/m<3> and 20 g/m<3>. When the substrate is used for culturing watermelon own-rooted seedlings, a nutrient solution does not need to be replenished, the seedlings are in order and strong without growing excessively, and the root systems are developed. After the substrate is planted into soil along with the seedlings, beneficial microorganisms in the substrate can quickly form a dominant microflora around the rooting zone of a crop, so that nutrition elements in the soil can be activated, and the utilization ratio of a fertilizer is increased; the application amount of an inorganic fertilizer can be reduced by 20-30 percent; soil-borne diseases can be resisted effectively, the incidence rate of field blight is low, and the control effect is between 86.74 percent and 89.4 percent, is higher than the control effect of an efficient bactericide for an own-rooted seedling growing from the ordinary substrate, and is basically close to the control effect of a grafted seedling; and the soluble sugar content of watermelon and the yield are increased.

The invention discloses a method for producing an organic fertilizer by utilizing poultry and livestock excrement. The organic fertilizer is prepared from the following raw materials in parts by weight: 200-250 parts of dried poultry and livestock excrement, 1-2 parts of EM (effective microorganism) inoculant, 250-350 parts of straw, 50-60 parts of expanded perlite, 50-60 parts of expanded vermiculite, 35-45 parts of diatomaceous earth, 50-65 parts of bentonite, 10-15 parts of borax, 15-25 parts of magnesium sulfate, 10-13 parts of zinc sulfate, 9-15 parts of copper sulfate, 35-50 parts of gypsum, 15-20 parts of sodium humate, 60-80 parts of monopotassium phosphate, 100-150 parts of beer waste residue, and 10-13 parts of soil conditioner. According to the method, a jade component is contained in the soil conditioner, and contains massive trace elements beneficial to human bodies; the fertilizer contains an adsorption component which can effectively adsorb and immobilize toxic heavy metal elements in the soil, so that the heavy metal elements can be prevented from being absorbed by crops. The method is simple, and is low in production cost; the fertilizer does not contain harmful bacteria, and is rich in beneficial biological bacteria.

The invention relates to a novel environment-friendly heat insulating coating and a preparation method thereof. The novel environment-friendly heat insulating coating comprises the following components in percentage by weight: 10 to 50 percent of film forming matter, 1 to 3 percent of expanded vermiculite, 5 to 25 percent of meerschaum, 1 to 20 percent of hollow microspheres, 0.5 to 5 percent of wetting agent, 0.5 to 5 percent of dispersing agent, 0.5 to 5 percent of defoaming agent, 0.5 to 5 percent of silane coupling agent, 1 to 10 percent of auxiliary agents, and 10 to 50 percent of solvent. The preparation method comprises the following steps of: grinding, vacuum filtrating, drying, grinding, screening and drying the expanded vermiculite, and then evenly mixing the dried expanded vermiculite with the dried meerschaum and the hollow microspheres to form a component A; mixing the film forming matter, the solvent, the wetting agent, the dispersing agent, the defoaming agent, the silane coupling agent and other auxiliary agents to obtain a component B; and evenly mixing the components A and B, and defoaming the mixture to obtain the heat insulating coating of the invention. The prepared insulating coating is coated on the surface of a working surface, is cured at the normal temperature and completely dried to achieve the effects of heat preservation and heat insulation.

The invention discloses a preparation method of preparing a solanaceous vegetable seedling medium by taking vegetable waste compost as a fertilizer source. According to the preparation method, vegetable waste is taken as a main raw material, crop straws and livestock manure are taken as auxiliary materials, a vegetable waste compost fertilizer is prepared by virtue of forced ventilation static composting and aerobic high temperature biological fermentation, the vegetable waste compost fertilizer, turf, vermiculite and perlite are adequately mixed in a certain volume ratio, a functional microbial agent is added into each mass of mixture, and the solanaceous vegetable seedling medium is prepared; the solanaceous vegetable seedling medium is good in permeability, water retention and fertilizer retention and balanced and reasonable in nutrient supply, the balance requirements of solanaceous vegetable crops to nutrient elements in seedling and growing stages can be met without adding any inorganic chemical fertilizer, and the survival rate and stress resistance of seedlings can be obviously increased; the harmless and resourceful treatment of vegetable waste are achieved, and the huge wasting of vegetable waste and environmental pollution are avoided; the preparation method has wide application value.

The invention discloses a light ecological concrete brick and a preparation method thereof. The light ecological concrete brick is formed by that cement, gravel, pearlite or expanded vermiculite, saw dust (or straw dust, paper scrap and the like), mixed microorganism and water are mixed at certain ratio, are shaped by a mould and are naturally hardened, wherein the mixed microorganism comprises six floras, i.e. bacillus, nitrobacteria, photosynthetic bacteria, saccharomycete, lactic acid bacteria and actinomycete. The light ecological concrete brick of the invention has favourable and long-lasting water purification function because of containing multiple microorganisms and can suspend and even float on the water because of containing light and porous pearlite or expanded vermiculite components with strong adsorption force, which is more favourable for the apposition growth of the microorganism and enlarges contact area with water. The invention can be widely applied on purifying various kinds of water, such as rivers, lakes, ditch water, swimming pools, aquariums and the like.

A highly fire resistant construction board is produced by embedding a sheet of expanded metal net in a building board made from a water settable inorganic binder. In a preferred embodiment, the wallboard is made from a combination of gypsum, cement, and a particulate mineral filler such as perlite or vermiculite, and contains an embedded layer of expanded metal net made from a magnesium alloy.