768 results about "Inorganic Chemical" patented technology

A preparation method of high length-diameter ratio anhydrous calcium sulfate whisker belongs to the technical field of inorganic chemical material preparation. The method takes inorganic calcium saltand inorganic precipitant as raw materials and surfactant as dispersant, and includes the following steps: first preparing superfine calcium sulphate dihydrate precursor with good dispersion at the temperature of 10-90 DEG C; then adding the precursor into water solution containing shape control agent to conduct hydrothermal reaction for 0.5-10h at the temperature of 100-250 DEG C, and obtaining calcium sulfate hemihydrate whisker; mixing the calcium sulfate hemihydrate whisker with inorganic solvent; and roasting the mixture for 0.5-6h at the temperature 200-800 DEG C to obtain anhydrous calcium sulfate whisker with the length of 20-2000mum, the diameter of 0.5-20mum, the length-diameter ratio of 40-1000 and the main content greater than 95wt% after washing and drying. The technology is simple, the cost is low and the added value of the product is high. The prepared calcium sulfate whisker has large length-diameter ratio and regular shape and can be used as reinforcing material to beapplied in industries such as plastics, rubber, ceramics, cement, papermaking and the like.

A method for preparing highly stabilized and dispersible zero valent iron nanoparticles and using the nanoparticles as a remediation technology against inorganic chemical toxins in contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the iron nanoparticles in a liquid carrier, and results in suspensions of iron nanoparticles of desired size and mobility in water, brine, soils or sediments. The stabilizer facilitates controlling the dispersibility of the iron nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the zero valent iron nanoparticles can remediate one or more toxins such as an arsenate, a nitrate, a chromate, or a perchlorate in the contaminated site.

The invention relates to inorganic heat-insulating dry powder mortar, which comprises the following components in percentage by weight: 30 to 95 percent of inorganic gelled material, 5 to 70 percent of lightweight aggregate and 0 to 10 percent of additive, wherein the inorganic gelled material comprises 75 to 90 weight percent of desulfuration gypsum and 10 to 25 weight percent of cement; the lightweight aggregate is hydrophobic expanded perlite or vitrified micro bubbles or a mixture of the hydrophobic expanded perlite and the vitrified micro bubbles; and the additive comprises a composite retarder, a water retention agent, a thickening agent, a cementing compound and a reinforcing agent. The inorganic heat-insulating dry powder mortar can replace cement mortar and mixed mortar, is applied to non-humid wall surfaces such as the inner side of an outer wall, a separating wall, an inner partition wall, a ceiling and the like, has the characteristics of heat preservation, heat insulation, crack resistance, fire prevention, ageing resistance, environmental protection, biological bite corrosion prevention and the like, and can improve the heat-preserving and heat-insulating performanceof wall bodies.

The invention relates to a microwave synthesizing process for nano-size silicate based poromeric material, which consists of dissolving aluminium source into water, charging silicon source while agitating, continuously agitating, carrying out microwave processing directly for 3-180 minutes to the reaction solution, microwave heating 3-30 minutes, crystallizing 1-8 days at 60-100 deg C, centrifugally separating, filtering, scouring, dry scouring to neutral, thus obtaining nano-size molecular sieve with adjustable particle size.

A device is described that can be used to treat acne and certain skin defects quickly, accurately, and economically by the controlled application of NON-radiofrequency electrical energy. This economical hand-held device is to be used by patients alone or with under the consultation of a physician. Spot application of the tip by the patient for only seconds with or without a conductive gel or liquid adjunct allows electrical energy access below the surface of the skin without creating significant epidermal damage. This electron flow through the base of the lesion to be treated unique to this device; in the instant invention, the electron flow is diametric across the tip dimensions between the electroconductive tip elements, but taking the path of least resistance, that being through the depth of the acne lesion to be treated. The invention also pertains to attendant methods for enhancing the energetic effects of the electrical delivery device via concurrent external application of organic and inorganic, chemicals and materials.

A process for preparing the acid modified Ti-contained molecular sieve includes such steps as mixing the uncalcined raw powder of TS-1 molecular sieve with the solution of acidic compound, acid modifying, filtering, washing, drying and calcining. Its advantages are high purity, and high catalytic activity.

The invention relates to a novel building material, particularly to an inorganic thermal insulating decorative panel and a production process thereof. The inorganic thermal insulating decorative panel and the production process thereof solves the defects that existing foam ceramic panels need to be bonded with microcrystalline composite boards during construction. The inorganic thermal insulating decorative panel is of a double-layer structure which is composed of a foam matrix layer and a decorative layer covering the matrix layer, wherein the foam base layer is a foam ceramic layer, and the decorative layer is a microcrystalline layer of a ceramic layer; the microcrystalline layer is made of microcrystalline materials, and the ceramic layer is made of ceramic materials; the foam matrix layer is composed of, by weight part, 100 parts of ceramic powder, 0.05-5 parts of foaming agent, 0.1-5 parts of foam stabilizer and 0.5-10 parts of sodium phosphate. The inorganic thermal insulating decorative panel is high in strength, fireproof performance and heat and sound insulating effects, low in density and good in comprehensive performance.

The invention relates to the field of aluminum alloy decoration and protection coating for ships, in particular relates to an environmentally-friendly corrosion-contamination resistant chemical conversion agent and application thereof in a chromium-free chemical conversion film, and solves the problems of poor corrosion resistance, high cost, difficulty in large-area construction and the like in the prior art. The chemical conversion agent comprises a component A and a component B. The method for preparing a chemical conversion film comprises the following steps of: forming a first inorganic chemical conversion film layer by the component A and forming an organic contamination resistant closed film by the component B. The component A is a water solution prepared from a main salt, a film-forming accelerator, a buffering agent, a surfactant and the like, and the component B is prepared from silicate, silane, a silica sol, titanate, zirconate, waterborne resins and the like. The chemicalconversion agent does not contain chromium ions and phosphates, and the chromium-free chemical conversion film prepared from the chemical conversion agent has excellent corrosion resistance and contamination resistance, can be used for construction of large-area aluminum alloy sections, and can be used as surface decoration and protection coatings for 5xxx and 6xxx series aluminum alloys.

The invention discloses a preparation method of nano-calcium carbonate SCC-2 special for a silicone sealant, belonging to the technical field of inorganic chemical industry. According to an adopted technical scheme, the method comprises the following steps of: calcining limestone, crushing to obtain CaO; digesting, refining and aging the CaO in a hot state in the ratio of 1:4.8 of CaO to H2O; adding 1 percent of white granulated sugar crystal form control agent for undergoing a carbonation reaction to obtain CaCO3 slurry; performing activation surface treatment; and dehydrating, drying, crushing and degrading to obtain a nano-active CaCO3 product of 60-100 nanometers. The crystal form, size, regularity, oil absorption value and pH value of CaCO3 are controlled, so that 'hard aggregation' among particles is avoided from a surface modification production process, and the product has low oil absorption value and high bulk specific weight and has high dispersity in polymers.

The invention is a ZSM-5 molecular sieve synthesizing method, belonging to inorganic chemical synthesis technical field. And it prepares the ZSM-5 molecular sieve by preparing guiding agent and reacting mixed solution, hydrothermal crystallization, and routine filtering, washing, drying and baking, where the guiding agent uses tetrapropyl ammonium bromide or tetrapropyl ammonium hydroxide as the first organic alkali template and the reacting mixed solution uses annular molecular amine- hexamethylene imine or piperidine or their mixture as the second organic alkali template; and it has advantages of omitting ion exchange procedure, short process, low producing cost, not discharging ammonium- and nitrogen- containing waste water, not polluting environment, etc.

The invention discloses a making method of Ti-MWW molecular sieve in the inorganic chemical synthetic technical domain, which comprises the following steps: introducing surface activator in the crystallizing course of Ti-MWW molecular sieve; making raw powder of Ti-MWW molecular sieve; proceeding acid disposal; sintering; obtaining the product.

The invention discloses a hydrogen-production photocatalyst MoS2 / ZnIn2S4 and a preparation method and application thereof, and belongs to the technical fields of inorganic chemistry and photocatalysis. The photocatalyst is a multiplex photocatalyst of non TiO2 by that a non-precious metal MoS2 serving as a cocatalyst is loaded on ZnIn2S4; and the chemistry formula is MoS2 / ZnIn2S4. The hydrogen-production photocatalyst MoS2 / ZnIn2S4 and the preparation method thereof solve the problem that photocatalystic performance is improved by taking rare and expensive precious metal Pt as the cocatalyst in the prior art; the cheap non-precious metal MoS2 serving as the cocatalyst is loaded on ZnIn2S4 for the first time; the obtained multiplex photocatalyst has a high-efficiency photocatalysis hydrogen production effect; the preparation method is simple, convenient and easy and is beneficial to industrial promotion on a large scale.

The present invention relates to a synthesis method of Ti-MWW molecular sieve. Said method includes the following steps: uniformly mixing silicon source, titanium source, boron source, template agent, fluorine source and water to obtain colloidal material, them making hydrothermal crystallization so as to obtain Ti-MWW molecular sieve raw material powder, making said raw material powder reacte with acidic solution, roasting so as to obtain the Ti-MWW molecular sieve.

The present invention features that by using industrial acid waste water and inorganic salt in waste liquid as material and through inorganic chemical reaction, laminated dihydroxide (LDH) is synthesized; and through high temperature calcination, the derivative quasi-periclase is produced. The present invention is one new waste water processing technology and new LDH synthesizing technology for processing waste water and preparing LDH simultaneously. The prepared LDH or derivative quasi-periclase may be used as water purifying agent for processing waste water and drinking water. The present invention realizes the comprehensive waste treatment and resource utilization.

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 present invention is inorganic antiseptic of RE activated silver carrying matter and its preparation, and belongs to the field of inorganic antiseptic purifying material technology. The present invention adopts compound phosphate as the porous carrier for inorganic silver antiseptic to carry several kinds of antiseptic ions, such as Ag, Zn and Cu ions simultaneously, and RE element, such as La, Y, etc. with activating characteristic to improve antiseptic performance and color change resistance. The antiseptic has powerful antiseptic performance, good ultraviolet ray radiation resistance, and less color change and blackening. It may be added into various kinds of plastic, paint, building ceramic material to produce antiseptic products for furniture and household decoration.

The invention relates to an inorganic heat-insulating material and a preparation method thereof. The inorganic heat-insulating material is prepared from the following raw materials in parts by weight: 15-37 parts of basic material, 45-70 percent of pigment and filler and 9-26 parts of auxiliary agent, wherein the basic material comprises the following raw materials in parts by weight: 10-20 partsof phosphoric acid, 3-8 parts of aluminium hydroxide, 2-8 parts of aluminum-silver slurry auxiliary agent, 0.5-5 parts of silicate and 1-5 parts of sodium carboxymethyl cellulose; the pigment and filler is one or a combination of potassium titanate whiskers, expanded perlite, ceramic microspheres, nano-silicon dioxide aerogel, heat-insulating powder, carbon fibers, meerschaum, needle-shaped wollastonite powder and magnesium hydrate; and the auxiliary agent is one or a combination of boron nitride, dichromium trioxide, glass powder, boric acid, nano-zirconia, calcium oxide and calcium-based bentonite. The invention inorganic heat-insulating material has strong insulating capability for solid conductive heat at high temperature (150-500 DEG C) and simultaneously also has strong insulating capability for radiation and flow conductive heat.

A method for making ion conducting films includes the use of primary inorganic chemicals, which are preferably water soluble; formulating the solution with appropriate solvent, preferably deionized water; and spray depositing the solid electrolyte matrix on a heated substrate, preferably at 100 to 400° C. using a spray deposition system. In the case of lithium, the deposition step is then followed by lithiation or addition of lithium, then thermal processing, at temperatures preferably ranging between 100 and 500° C., to obtain a high lithium ion conducting inorganic solid state electrolyte. The method may be used for other ionic conductors to make electrolytes for various applications. The electrolyte may be incorporated into a lithium ion battery.

The invention belongs to the technical field of building materials and particularly relates to inorganic heat-preservation sand pulp with desulfurated gypsum as main gelled materials. The inorganic heat-preservation sand pulp is composed of the desulfurated gypsum, slag powder, pulverized fuel ash, Beta-semi-hydrated gypsum, lime, latex powder, vinol fibers, cellulose ether and an air entraining type high-efficiency water reducing agent. The invention not only can solve the high-efficiency recycling problem of the desulfurated gypsum (an industrial solid waste), but also can effectively avoid the problems that the hydration of the desulfurated gypsum is slow and the water resisting property of the traditional gypsum-based inorganic heat-preservation sand pulp is poor. Therefore, the invention is suitable for wall body heat-preservation engineering construction of various buildings and can meet certain requirement for the intensity.

The invention relates to a light thermal-shield refractory castable comprising the following components in percentage by weight: 40-60% of light aggregate, 10-20% of capacitance mullite, 5-10% of kyanite powder, 5-10% of high-aluminium clinker powder, 3-8% of silica micro powder, 3-8% of alpha-Al2O3 micro powder, 5-10% of high-aluminium cement, 0.5-10% of high-aluminium refractory fibre containing zirconium, 1.5-4% of thermal-shield steel fibre, 0.1-1% of melamine and 0.05-0.1% of organic anti-explosion fibre, wherein the granularity of the capacitance mullite is less than or equal to 1 mm, both the granularity of the silica micro powder and the granularity of the alpha-Al2O3 micro powder are less than or equal to 5 mu m, and the chemical modified light aggregate is obtained by drying after the light aggregate is dipped in inorganic chemical solution or sol. The light thermal-shield refractory castable of the invention can improve the service life of a furnace roller, lowers production consumption cost, reduces non-working hours caused by exchanging rollers and improves production efficiency.

A method for preparing highly stabilized and dispersible zero valent iron nanoparticles and using the nanoparticles as a remediation technology against inorganic chemical toxins in contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the iron nanoparticles in a liquid carrier, and results in suspensions of iron nanoparticles of desired size and mobility in water, brine, soils or sediments. The stabilizer facilitates controlling the dispersibility of the iron nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the zero valent iron nanoparticles can remediate one or more toxins such as an arsenate, a nitrate, a chromate, or a perchlorate in the contaminated site.

The invention discloses a method for synthesizing nanometer ZSM-5 molecular sieve, which belongs to the technical field of inorganic chemosynthesis. The method comprises steps as follows: sodium metaaluminate or aluminium sulphate, silica sol or water glass, sodium hydroxide and isopropylamine are prepared into reaction mixer; the reaction mixer is subjected to hydrothermal crystallization; and the reaction mixer after the hydrothermal crystallization is filtered, washed, dried and baked conventionally to obtain nanometer ZSM-5 molecular sieve. The synthesized ZSM-5 molecular sieve has the advantages of higher specific surface, short production flow and low cost, and the section of the synthesized ZSM-5 molecular sieve crystal grain has an average diameter not larger than 100 nm, thereby facilitating industrialization production and application.

The invention relates to a method for synthesizing a boron-containing molecular sieve, namely a method for synthesizing a B-ZSM-5 molecular sieve, which belongs to the technical field of inorganic chemical synthesis. The method is characterized in that cheap cyclic molecular amine and hexamethylene imine (HMI) or piperidine (PI) or a mixture thereof is taken as an organic alkali template agent, and a directing agent is prepared by the synthesis process of the directing agent; substances such as a silicon source, a boron source, a sodium source and the like are adopted; the mol mixture ratio of SiO2 in the silicon source to the organic alkali template agent to B2O3 in the boron source to Na2O in the sodium source to H2O is equal to 1: (0.5-2): (0.005-0.1): (0-0.15): (10-40), and a mixture solution is prepared; and then a certain amount of the directing agent is added into the solution, and then the boron-containing molecular sieve (B-ZSM-5) is obtained through hydro-thermal crystallization and processes such as filtration, washing, drying, baking and the like.

The invention discloses a modification method of Ti-Si molecular sieve, belonging to the field of inorganic chemical synthesis technique. The method uniformly mixes the Ti-Si molecular sieve and complexing agent compound solution and carries out the modification disposal at the temperature ranging from room temperature to 100 DEG C; subsequently, the modified Ti-Si molecular sieve is obtained by the normal operations of filtration, washing, drying and baking. The obtained modified Ti-Si molecular sieve has higher catalytic oxidation activity.

The present invention is the preparation process of hydrated basic magnesium sulfate whisker in the field of inorganic chemical material preparation. The preparation process of hydrated basic magnesium sulfate whisker with magnesium salt material as side product of salt producing process includes the normal temperature fast mixing to prepare high solubility and high dispersivity nano level magnesium hydroxide precursor; fast hydrothermal reaction of the precursor with water solution of sulfate, magnesium hydroxide as solubilizer and dispersant; and subsequent filtering, washing and drying. The hydrated basic magnesium sulfate whisker is homogeneous in size, regular in appearance and high in dispersivity, has the composition of 5Mg(OH)2.MgSO4.3H2O, average length of 5-50 microns and average diameter of 0.1-2 microns. The product may be used as reinforcer and fire retardant in preparing high strength rubber, plastic, resin, ceramic and other composite material.

The invention relates to a nanometer hierarchical pore MFI molecular sieve one-step synthesis method, belonging to the fields of catalytic chemistry, inorganic chemistry and physical chemistry; wherein, MFI molecular sieve can be Silicalite-1, ZSM-5 or TS-1, the specific surface is 400-1100m<2> / g and the total pore volume is 0.15-0.83 cm<3> / g. The preparation method is characterized in that commercial fluorocarbon / hydrocarbon surfactant is used as template agent of the mesoporous structure and the hierarchical pore MFI molecular sieve can be synthesized through one step reaction on the cooperative action between the commercial fluorocarbon / hydrocarbon surfactant and microporous molecular sieve template. The method is easy, the cost is low and the combination of mesoporous and microporous structures can be realized. The material not only has the characteristics of high activity and high hydrothermal stability of microporous molecular sieve, but also eliminates diffusion control, thus facilitating molecule reaction. The new material has wide application prospect in the fields of petrochemical engineering, chemical preparation, environmental catalysis and the like.

The invention relates to a method for preparing nano zinc oxide and crystal whisker zinc oxide by using industrial zinc sulfate as a raw material, which belongs to the technical field of preparation of inorganic chemical materials. The method uses a simulated industrial zinc sulfate solution containing impurities of manganese and magnesium as the raw material, and comprises the following steps: firstly, removing the manganese by adopting an oxidation method, and separating the magnesium and zinc by adopting a neutral complex magnesium-dissolving and zinc-depositing mode so as to prepare a precursor of a nano zinc salt; and secondly, preparing the crystal whisker zinc oxide with a regular shape by using a hydrothermal orientated growth method, or preparing high-purity nano zinc oxide by using a roasting method. The method well meets the prior zinc wet method metallurgical process, and has the advantages of clean and simple process, good impurity removing effect, high zinc total yield, low cost, excellent product performance, high added value and easy industrial popularization. The nano zinc oxide and the crystal whisker zinc oxide prepared by the method have regular shapes and uniform grain size, and can be used as functional packing materials or reinforcing materials applied to the fields of alloy, resin, rubber, ceramics, plastics, coatings, electronics and the like.

The invention provides a process for preparing phosphate concentrate and by-products calcium carbonate and magnesium oxide from mid and low-grade phosphate rocks, and belongs to the technical field of inorganic chemical industry. The process comprises the following steps: burning mid and low-grade phosphate rocks at 900-1100 DEG C; and then carrying out a series of treatment including digesting, leaching and participating to obtain phosphate concentrate, calcium carbonate and magnesium oxide. By virtue of the process, the phosphorus element is reserved in the prepared phosphate concentrate to the maximal extent; meanwhile, the by-products calcium carbonate and magnesium oxide are generated; calcium elements, magnesium elements and phosphorus elements in the mid and low-grade phosphate rocks are fully utilized; and meanwhile, ammonium nitrate and ammonium sulfate are recycled in the treatment process, so that the target of saving raw materials is reached.

The invention discloses an inorganic mineral filled wood-plastic composite material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 5-50 parts of organic macromolecule resin, 1-100 parts of inorganic mineral material, 2.5-30.0 parts of wood raw material, 0-5 parts of plasticizing agent, 0.25-5.00 parts of coupling agent, 0.05-2.00 parts of foaming agent, 0.01-3.00 parts of foam control agent, 0.05-4.00 parts of impact modifier, 0.05-4.00 parts of lubricating agent, and 0.1-5.0 parts of stabilizing agent. The preparation method comprises the following steps of: crushing and drying all the raw materials, mixing the crushed materials, and extruding the mixture by an extruder to obtain the inorganic mineral filled wood-plastic composite material. According to the composite material, the inorganic mineral material is used as a filling agent, one the one hand, special functional characteristics of the inorganic mineral material are reflected, on the other hand, mechanical property and processability of a material in the original prescription are maintained, investment on the wood material and the other materials with pretty high cost is reduced, and the cost of the wood-plastic composite material is greatly reduced.