25 results about "Silicate" patented technology

The invention provides a high strength organic / inorganic nano composite film layer materials and method for preparation, wherein the composition comprises 10-13% of titanate, 7-17% of silicane coupling agent, 0-6% of silicate ester, 40-65% of alcohol solvent and 1-4% of water. The preparation of the composition consists of using inorganic acid as catalyst, co-hydrolyzing titanate, silicate and silane coupling agent in dimethyl carbinol, coating the obtained paint by rotary, dipping or spraying methods onto the surface of the appliances, finally solidifying 1-3 hours at 135- 150 deg. C.

The invention relates to a lithium silicate-coated Ni-Co lithium aluminate positive electrode material and a preparation method thereof. The mass percent of lithium silicate in the material accounts for 1-10wt%, a coating layer with a thickness being 2-20 nanometers is formed from the silicon silicate and is coated on Ni-Co lithium aluminate, and the positive electrode material is a spherical particle with a grain size being 5-15 micrometers. The method comprises the following steps of (1) adding a silicon source into an organic solvent, performing uniform stirring, adding water, adding Co-Alnickel hydroxide, performing heating and stirring reaction, and performing drying to obtain silicon dioxide-coated Co-Al nickel hydroxide precursor powder; and (2) grinding and uniformly mixing the silicon dioxide-coated Co-Al nickel hydroxide precursor powder and a lithium salt, placing the mixture in a tubular furnace, and performing two-segment calcination under an oxidization atmosphere, thereby obtaining the lithium silicate-coated Ni-Co lithium aluminate positive electrode material. The positive electrode has relatively good cycle stability and large-rate discharging performance; and bythe method, the problem of lithium resided on a surface during conventional coating can be effectively reduced, and the method is low in cost and simple in process and is suitable for industrial production.

The invention discloses dry-mixed pre-mixed mortar prepared by alkali activated slag cement, and a preparation method thereof. The dry-mixed pre-mixed mortar includes dry-mixed masonry mortar, dry-mixed plastering mortar and dry-mixed screeding mortar; the dry-mixed pre-mixed mortar is prepared by the following raw materials by weight: 10-30 parts of slag, 0.5-2 parts of excitant, 0-8 parts of mineral admixture, 70-85 parts of aggregate and 0.1-1 part of functional additivs. The preparation method thereof comprises the following steps: step (1) of grinding slag powder until specific surface area is 350-400 m<2>/kg; step (2) of weighing various components by weight in part; step (3) of putting various components weighed in the step (2) into a blender mixer at constant temperature by constant pressure, and mixing for 5-10 min to obtain dry-mixed pre-mixed mortar. The preparation method provided by the invention can prepare dry-mixed pre-mixed mortar by using alkali activated slag cement instead of portland cement so as to save cost, reduce resource consumption and reduce environmental pollution.

An object of the invention is to provide a preparation process of a latent catalyst that can gives a latent catalyst, which can exert an excellent catalytic activity at the time of molding and therefore, can provide a resin composition having good curing property, fluidity and storage stability, in a short time in a high yield without mixing in ionic impurities. The present invention relates to a preparation process of a phosphonium silicate latent catalyst, comprising reacting (A) a proton donor represented by the following formula (1):

[Chemical Formula 1]

HY¹-Z¹-Y²H  (1)

[wherein Y¹ and Y² may be the same or different and each represents a group resulting from a proton donating substituent through release of a proton, Z¹ represents a substituted or unsubstituted organic group which bonds to the proton donating substituents Y¹H and Y²H, and two substituents Y¹ and Y² in the same molecule are capable of bonding to a silicon atom to form a chelate structure], (B) a trialkoxysilane compound and (D) a phosphonium salt compound represented by the following formula (2):

[wherein R¹, R², R³ and R⁴ may be the same or different and each represents an organic group having a substituted or unsubstituted, aromatic or heterocyclic ring or represents a substituted or unsubstituted aliphatic group and X⁻ represents a halide ion, a hydroxide ion or an anion resulting from a proton donating group through release of a proton], wherein the reaction is carried out in the presence of (C) a metal alkoxide compound.

The invention relates to an electrolyte used for magnesium alloy anode oxidation treatment and a treatment method. The electrolyte comprises the following components of 20-60ml/L of polyaspartic acid salt, 40-100g/L of alkali metal silicate, 10-40g/L of boric acid or sodium tetraborate, 150-300ml/L of ammonia water or 50-200ml/L of organic amine and 20-60mg/L of sodium gluconate serving as additive, wherein the pH (potential of hydrogen) value of the electrolyte is 11-13. When the electrolyte disclosed by the invention is adopted for anode oxidation surface treatment on the magnesium alloy, one layer of smooth, even and compact ceramic layer with good corrosion resistance is formed on the surface of the magnesium alloy, the electrolyte can not pollute the environment and has a good favorable application prospect.

Methods of enhancing the segregation roast through the use of microwave radiation and chloride ions are disclosed. The processes provide means of recovering metals trapped in ores and slags by reaction of these materials with carbon, chloride and water using microwave radiation as the primary energy source. The metals may be present in starting materials such as metallic sulfides, slags, metallic oxides such as laterites, magnetites, iron oxides, silicates and carbonates. The metals are reduced and can be recovered by separation from the gangue. Water, carbon and chloride can be recycled to the reaction to reduce costs.

The invention relates to the field of sound absorbing materials used for buildings, and particularly relates to sound absorbing mortar and a sound absorbing material. The sound absorbing mortar mainly comprises, by weight, 70-80 parts of sand grains, 6-12 parts of silicate and 12-20 parts of water. The sound absorbing material is prepared from the sound absorbing mortar, can achieve large-area seamless decoration and has a good environment protection property. Through a manufacturing process, the particle size and a shaping manner of the sand grains can be accurately controlled, thus determining the size and the arrangement manner of inner pores. Silica sand plasterer slurry having various flow resistance and sound absorbing characteristics can be produced, has good absorbing effects on low-frequency and high-frequency noises, and can greatly decrease sound wave reflection. In addition, the sound absorbing material is high in strength and flame-retardant.

The invention discloses a comprehensive utilization treating method for aeroconcrete waste materials. Firstly, drying the aeroconcrete waste materials, then mixing the aeroconcrete waste material with anhydrite or dihydrate gypsum according to a certain mass percentage ratio after calcining, grinding the mixture in a ball mill to prepare an expansive agent, evenly mixing the expansive agent with silicate cement to prepare expansive cement, calcining the aeroconcrete waste materials in high temperature, grinding the waste materials in the ball mill into a powder lot with specific surface area of 300-400g/cm2, thereby obtaining gelled materials, using the powderlot quantity of 50-150kg per cubic meter as fillers to replace lime or dense concrete filled with lime. The treating method of the invention has the advantages of simple technology, no secondary pollution, being applicable for commercial process, making more full use of aeroconcrete waste materials, and changing waste into valuable.

The invention discloses a method for preparing three-dimensional porous bioactive glass. The method comprises the following steps: preparing a three-dimensional porous silicate nanosheet array to serve as a main support material of the bioactive glass through a hydrothermal method; regulating the concentration and reaction time to regulate the particle size of macroporous silicate nanosheets and the size of the nanosheets; and supporting a microporous molecular sieve onto the silicate nanosheets through the hydrothermal method, thereby obtaining the three-dimensional porous bioactive glass of a hierarchical structure. The bioactive glass prepared by the method has a similar structure to that of a natural bone material. The microporous molecular sieve has a drug sustained release function, a composite structure and a functional bionics principle. Meanwhile, the bioactive glass has excellent biocompatibility, biological activity and drug sustained release function and can promote adhesion, proliferation and differentiation of cells on the surface of the bioactive glass. The three-dimensional porous ordered bioactive glass can serve as a new-generation bone substitution material and a biological scaffold material for bone repair.

The invention discloses an environment-friendly ceramic coating material for a water faucet. The environment-friendly ceramic coating material for the water faucet is prepared according to a formula comprising the following raw material components in percentage by mass: 80-100 parts of fluorocarbon resin, 8-10 parts of organosilicone oil, 3-5 parts of naphtha, 6-8 parts of polydimethylsiloxane, 10-12 parts of absolute ethyl alcohol, 5-8 parts of alkylphenol polyoxyethylene, 6-8 parts of castor oil polyethenoxy ether, 30-35 parts of an acrylic resin emulsion, 6-8 parts of a nano graphene oxide solution, 10-12 parts of perfluoropolyether, 5-6 parts of sodium chloride, 6-8 parts of disodium hydrogen phosphate, 5-6 parts of aluminum oxide, 6-10 parts of glass fiber powder, 5-8 parts of zinc powder, 6-8 parts of copper powder, 8-10 parts of carbon fiber powder, 8-10 parts of polybutylene terephthalate, 6-8 parts of calcium stearate, 5-8 parts of zinc stearate, 7-9 parts of sodium methyl silicate, 3-5 parts of isobutyl isobutyrate, 6-8 parts of ethlene bisstearamide and 8-10 parts of diethylene glycol monobutyl ether. The environment-friendly ceramic coating material for the water faucet has the advantages of corrosion resistance, wear resistance, high adhesive force, bright and clean appearance and compact coating structure.

The invention relates to a honeycomb denitration catalyst with water resistance and a preparation method therefor and belongs to the flue gas denitration field. The catalyst employs titanium dioxide as a carrier and employs vanadium pentoxide as an active component, auxiliary agents of tungsten trioxide, an organic binding agent and a forming auxiliary agent are added, extrusion molding is carried out, and surface treatment is carried out by utilization of a waterproof agent. The catalyst is simple in preparation steps, the conversion rate of the active component vanadium pentoxide is high, the mechanical strength is high, and the service life is long. Solids are dispersed uniformly through the ball milling technology, the micropore structure of the catalyst is changed, and the bonding force of the waterproof agent sodium methyl silicate and the catalyst is raised. When the catalyst operates in flue gas with a low temperature (260-300 DEG C) and a high water content (the water content is more than 10%), the denitration efficiency still can reach more than 95%, the environment application range of the catalyst is widened, and the service life is 3.5-4.5 years.

The invention relates to the field of building materials, in particular to an ultra-fine fly ash light self-insulation wall plate and a manufacturing method thereof. Fly ash is processed by a specialgrinder into ultra-fine fly ash with the specific surface area of 700m<2>/kg, fly ash crude residues discarded after air separation of a power plant replace building sand, 5-10 parts of silicate cement, HT-type special enhancers for the fly ash and water are mixed to form slurry, two fly ash cement foamed light insulation plates are embedded into the middle of a mould, alkali resistant glass fibergrid cloth is laid on the upper portion and the lower portion of the mould, 0.5-1.0 centimeter thick mixed slurry is uniformly poured on the periphery of the mould, tamped and leveled, the two fly ash cement foamed light insulation plates are firmly wrapped in the middle and demoulded after standing for 2-4 hours, and natural curing is performed for 7-10 days. The ultra-fine fly ash light self-insulation wall plate is light in weight, low in production cost, high in fly ash rate reaching 90% or more and applicable to internal, external and roof walls of buildings.

Ultrawhite stoneware is disclosed. The ultrawhite stoneware comprises, by weight, 25% of aedelforsite, 10% of potassium sand, 15% of aluminous soil, 5% of kaolin, 21% of potash feldspar, 21% of albite and 3% of talcum. The production process of the stoneware includes steps of: 1) ball milling, 2) performing spray granulation, 3) feeding into a powder storage bin, 4) performing compression moulding, 5) sintering and 6) examining. Beneficial effects of the ultrawhite stoneware and the production process are that: the whiteness of the product is higher than 53 degrees, and the product is free of chemical raw materials harmful to human health such as zirconium silicate so that the product is free of a problem of radioactivity exceeding the standards. The formula structure of the product is formed by low-temperature quick sintering, thus largely saving energy consumption.

A method for concentrating platinum and palladium from platinum-palladium flotation concentrates is composed of the following steps of adding sulfur of which the mass accounts for 0.2%-10% of the platinum-palladium flotation concentrates according to the mass ratio (1:3-9) of the platinum-palladium flotation concentrate to sulfuric acid solutions with the concentration of 150-250 g/L; leaching for1-5h under the oxygen partial pressure of 0.5-1.0 MPa, at the leaching temperature of 120-160 DEG C, pH of less than 0.5, and the stirring speed of 400-600 r/min; after leaching, maintaining the original stirring speed, cooling to 108-114 DEG C at the rate of 0.2-0.5 DEG C/min, and holding for 1-3h; continuously cooling to room temperature at the rate of 0.4-1.0 DEG C/min and the stirring speed of 150-300 r/min; and filtering to obtain leachate and leaching residues, and screening the leaching residues with a 100-mesh screen to obtain platinum-palladium concentrates and tailings. The method is simple in operation, and the purposes of concentrating precious metal including platinum and palladium as well as three-phase separation of base metal including copper, nickel, zinc, iron and silicate tailings are achieved synchronously; and the content and enrichment ratio of the precious metal in the platinum-palladium concentrates are high, and the subsequent separation cost is reduced obviously.

The invention discloses a sewage treatment agent. The sewage treatment agent comprises the following components: 10-20 parts of magnetic iron powder, 32-48 parts of polyferric chloride, 10-15 parts ofpolyacrylamide, 18-30 parts of poly aluminum ferric silicate, 24-48 parts of zinc sulfate, 25-40 parts of bentonite and 10-20 parts of activated carbon. The sewage treatment agent provided by the invention can realize sewage treatment by flocculation, magnetization adsorption and physical adsorption, and has a good treatment effect; the magnetic iron powder can effectively attract charged microparticles in the sewage treatment agent and make the charged microparticles agglomerated, the polyacrylamide and the poly aluminum ferric silicate are also used, so that the sewage treatment agent can achieve the purpose of rapid sedimentation, and improve the treatment efficiency; and at the same time, the sewage treatment agent can remove composite pollutants such as organic matter and heavy metals commonly found in water sources, reduce a color and turbidity of water, and further improve the treatment effect.

The invention discloses plastering adhesive cement for an external wall surface. The plastering adhesive cement contains the following components in parts by mass: 16-20 parts of dispersed latex powder, 200-240 parts of ordinary Portland cement, 40-50 parts of coal ash hollow microspheres, 4-6 parts of glass fibers, 15-30 parts of thermal insulation powder, 20-35 parts of fireproof powder, 40-80 parts of hard calcium carbonate, 10-20 parts of metal powder and 150-200 parts of water. By adding the coal ash hollow microspheres and the thermal insulation powder, the strength of the plastering adhesive cement is similar to plastering adhesive cement added with net cement and is even higher than the adhesive cement produced by virtue of the net cement, so that the use amount of the cement is saved, the processing cost is lowered, meanwhile, the compressive strength and the bonding strength can be effectively improved, and the plastering adhesive cement has high anti-cracking strength and flame retardance, strong fire retardancy and wide application range.

The present invention provides a kind of composite immobilized enzyme material for repairing polluted water source and its preparation process. The composite immobilized enzyme material is prepared with inorganic carrier 60-70 wt%, fly ash 8-20 wt%, enzyme preparation 3-15 wt%, calcium oxide expander 0.5-0.7 wt%, Portland cement 8-20 wt%, and additive 0.5-2 wt%, and through weighing material, crushing, mixing, stilling to nitrify, pressing to form and drying. The present invention has simple production process, low cost and high water treating effect, and the composite immobilized enzyme material may be used in treating sewage and waste water widely.

The invention discloses a beryllium silicate glass. The beryllium silicate glass comprises, by mass, 42-49% of SiO2, 15-20% of BeO, 11-14% of Na2O, 5-10% of Al2O3, 3-6.5% of oxide of at least one transition element, 3-6.5% of at least one rare earth element oxide, 3-6.5% of UO2, and 5-8% of HfO2. The glass has an extremely high stability, an extremely good mechanical strength and an extremely high chemical corrosion resistance to radiation, and can well seal, preserve and isolate a waste liquid under a reduced size condition.

The invention discloses a waterproof material for polystyrene boards and gypsum boards of building walls. The waterproof material is prepared from the following raw materials in parts by weight: 8-10parts of cement clinker, 6-10 parts of quick lime, 10-15 parts of a polyethylene emulsion, 15-20 parts of a paraffin emulsion, 4-8 parts of glass fibers, 3-6 parts of borax, 3-6 parts of sodium alginate, 3-5 parts of a grinding aid, 3-4 parts of sodium methyl silicate, 2-6 parts of hydroxyethyl cellulose, 2-4 parts of sodium tripolyphosphate, 2-4 parts of triethanolamine, 2-3 parts of aluminum potassium sulfate, 2-3 parts of dodecyl ethyoxyl sulphobetaine, 1-3 parts of polyacrylamide, 1-2 parts of calcium lignosulphonate and 50-80 parts of water. During construction, only 1mm of the material needs to be smeared on a polystyrene board wall body and a gypsum board wall body, after air drying, the surface layer of the wall surface is cleaned and polished to be flat, construction is convenient, time and labor are saved, the polystyrene board wall body and the gypsum board wall body treated through the material can completely eradicate the phenomena of alkali efflorescence, falling, moisture regain, mildewing and hollowing of the wall bodies, the service life of the polystyrene board and the gypsum board of the building wall body is greatly prolonged, and the cost is low.