114results about How to "High chemistry" patented technology

The invention discloses a special liquid rooting fertilizer for vegetables as well as a preparation method and an application of the special liquid rooting fertilizer. The rooting fertilizer consists of the following components in parts by mass: 100-150 parts of potassium nitrate, 100-150 parts of urea, 100-150 parts of potassium dihydrogen phosphate, 40-80 parts of fulvic acid, 10-50 parts of molasses, 10-50 parts of calcium ammonium nitrate, 10-50 parts of composite amino acid solution, 5-10 parts of ethylene diamine tetraacetic acid (EDTA) iron, 5-10 parts of ethylene diamine tetraacetic acid (EDTA) zinc, 5-10 parts of boric acid, 5-10 parts of sodium alginate, 5-10 parts of alpha-pimacol and 500-800 parts of water. The rooting fertilizer disclosed by the invention, through mutual matching and combined action of various components and contents, can achieve a remarkable rooting effect, and is simple and convenient to use, and is a product which is remarkable in effect on promoting root development of the transplanted vegetables.

A corrosion-inhibiting composition for application to a metal substrate, such as aluminum or steel, and in connection with a paint, and the synthesis of the composition. The active inhibitor constituent of the composition can be selected from the group consisting of 2,5-dimercapto-1,3,4 thiadiazole (DMTD), 2,4-dimercapto-s-triazolo-[4,3-b]-1,3-4-thiadiazole, trithiocyanuric acid (TMT), and derivatives of DMTD and TMT, including various N— or S— and N, N—, S— and N—,S-substituted derivatives of DMTD, including salts of DMTD of the general formula: M(DMTD)n, where n=1,2 or 3, and M is a metal cation and preferably M=Zn(II), Bi(III), Co(II), Ni(II), Cd(II), Pb(II), Ag(I), Sb(III), Cu(II), Li(I), Ca(II), Sr(II), Mg(II), La(III), Ce(III), Pr(III), Al(III) or Zr(IV). DMTD, TMT, and their derivatives may also be combined with phosphates, molybdates, borates, silicates, tungstates, phosphotungstates, phosphomolybdates, cyanamides, carbonates, SiO2 and mixtures thereof.

A variable capacitor power supply for a high-power, industrial magnetron is powered directly from a conventional, public-service, 4,160 volt and higher power line. The magnetron's output is removably attached to a tractor trailers or train boxcar fabricated as a microwave work chambers. Microwave work chambers are configured to dry waste, burn dried waste, enhance chemical processes, fix free nitrogen, burn waste metal, reclaim component metals from mixed waste metal, and for gasification, pyrolysis, and plasma waste disposal. Alternately, the microwave power supply is removably connected to an underground cave, configured as a microwave oven chamber, to microwave waste therein. The microwave power supply is located in the basement of a high rise building designed to convert the high rise building waste into heat and electricity.

The invention provides a method for preparing a hydroxyapatite / titanium dioxide composite bioactive coating on the surfaces of medical metals such as a titanium alloy, and the like, and belongs to the technical field of the preparation of bioactive coatings on the surface of the titanium alloy. The composite coating is prepared by preparing precursor sols of HA and TiO2 respectively, then mixing the precursor sols of the HA and the TiO2, and performing aging, coating, drying and heat treatment. The coating has high bioactivity, low cost of preparation technology, and high bonding strength with a matrix, is applicable to the preparation of surface coatings of various complicated geometric structures, and can be used for surface modification of surgical implants such as artificial hip joints and dental implants as well as orthopedic instrument products.

Methods, compounds, pharmaceutical compositions and kits are described for treating or preventing amyloid-related disease. Also described are methods, compounds, pharmaceutical compositions and kits for detecting, diagnosing, monitoring and treating or preventing amyloid-related disease.

A device for cosmetic treatment of human skin, including: a needle for inserting into the skin; a DC power source electrically connected to the needle for providing negative current to the needle; an anode that is electrically connected to the DC power source to receive positive current, and that is adapted to be placed in contact with the skin of the person into which the needle is inserted to form a closed electrical circuit; at least one RF transmitter coupled to the needle for radiating the area around where the needle is inserted to provide heat while the needle is deployed.

The invention discloses monodisperse superparamagnetic nano crystal colloidal core-shell composite particles, which are monodisperse superparamagnetic nano cluster particles which are gathered by ferroferric oxide nanocrystalline. The surfaces of the particles are coated by polyvinylpyrrolidone. The preparation method of the composite particles comprises the following steps: adding trivalent iron salt to polyol mixture solution of polyvinylpyrrolidone and polyhydroxy compounds; agitating until the trivalent iron salt is completely dissolved; adjusting the pH value to 8.0-10.0, then carrying out enclosed heating to 180-240 DEG C, and carrying out heat preservation for 6-48 hours. The monodisperse superparamagnetic nano crystal colloidal core-shell composite particles disclosed by the invention can be assembled into different colors of photonic crystal in a magnetic control manner; the dependency level of the magnetic photonic crystal on the solvent polarity, the ion strength and the pH value can be reduced.

Methods of separating and purifying products from the catalytic fast pyrolysis of biomass are described. In a preferred method, a portion of the products from a pyrolysis reactor are recovered and purified using a hydrotreating step that reduces the content of sulfur, nitrogen, and oxygen components, and hydrogenates olefins to produce aromatic products that meet commercial quality specifications.

A process is provided for recovering heavy minerals from aqueous oil sand tailings, the oil sand tailings having heavy minerals, other coarse solids such as silica, fines, residual bitumen and water, including desliming the oil sand tailings in a desliming means by removing a portion of free fines and residual bitumen from the oil sand tailings; attritioning the oil sand tailings in an attritioner to remove adhered fines and residual bitumen from the heavy minerals and other coarse solids; and subjecting the deslimed and attritioned tailings to separation in a separation means to separate the heavy minerals from the other coarse solids present in the deslimed and attritioned tailings and produce a concentrated heavy minerals fraction.

The invention discloses a new typed white copolymerization emulsion in the binding technical domain, which comprises the following steps: dispensing raw materials with polyvinyl alcohol, deionized water, sodium bicarbonate, vinyl acetate, butyl acrylate, tertiary carbonate vinyl ester, dispersant, defoamer, ammonium persulphate, plasticizer and pH value adjuster; doing the polymerizing reaction in the glass lining autoclave; putting the polyvinyl alcohol and deionized water in the autoclave; heating to dissolve the materials; cooling to adding the dispersant and defoamer; adding the reacting monomer to polymerize under normal pressure at 72-80 deg. c in the stirring condition; adding fitful quantity of pH adjuster to control the pH value between 6. 0 and 7. 0; adding plasticizer DBP; forming the product with good binding property and transparent organic film, safety and environment protection to save resource.

The invention relates to a method for 3D printing of a catalyst-carrier system with a high specific surface area and high efficiency. By adopting a process that ceramic powder or a precursor is independently grinded and dispersed into a light-cured resin, partial high temperatures and partial denaturation caused by collision in the mixing and ball-milling process are effectively avoided; printer parameters are selectively set for prepared slurry, so that the printing thickness of each layer is moderate, and rapid molding can be facilitated; due to a two-section heat preservation process of a ceramic carrier prefabricated part, cross-linking curing and cracking molding time is ensured, and structure deformation after calcining is avoided. Because of the high stability, a ceramic carrier prepared by using the method is applicable to different synthesis methods for carrying catalysts, working environments of the catalysts are not rigorously required, and new ideas are provided for large-scale industrial application of structure-function integrated catalysts.

The invention discloses a solidification and stabilization method for a hazardous waste containing toxic organic compounds, which belongs to the hazardous waste treatment technical field of environment protection. According to a dry weight ratio, 30 to 60 percent of the hazardous waste containing toxic organic compounds, 0.5 to 10 percent of an additive, 30 to 60 percent of inorganic cementing agent and curing agent are added into an agitator and are stirred by adding water, meanwhile, a gas internal circulation device is started, the gas in the agitator is adsorbed and purified by a gas adsorbing and purifying device, and then part of the gas is fed back into the agitator; after being evenly mixed and stirred materials are discharged, solidified and fed into a maintenance house, and the solidification and stabilization of the hazardous waste containing toxic organic compounds is finished. The additive comprises an adsorbent with adsorbing effect and a structural modifier which can improve the structural performance of a product, such as activated carbon, water glass, calcium chloride, etc. The inorganic cementing agent and curing agent refers to hydraulicity cementing material. The solidification rate of the invention can reach more than 90 percent; and gas circulation can reduce polluted gas discharging, thus being capable of effectively reducing the occurrence of secondary pollution.

A gasifier is disclosed combining a fixed bed gasification section where coarse fuel is gasified and an entrained flow gasification section where fine fuel is gasified. The fixed bed section includes upper and lower sections. Coarse fuel is devolatilized in the upper fixed bed section and subjected to elevated temperatures sufficient to crack and destroy tars and oils in the effluent gases. The entrained flow gasification section is disposed in a lower plenum adjacent the lower fixed bed section. A plurality of injection ports are configured to introduce oxygen, steam, or air into different sections of the gasifier to control temperature and operating conditions. Activated carbon may be formed in the upper fixed bed section and in the entrained flow section. The activated carbon may be used as a sorbent to remove pollutants from the effluent gases. The gasifier may be used with various coarse and fine fuel feedstocks.

The invention discloses a making method of non-crystal starch particle without non-organic solvent water phase, which comprises the following steps: dispersing starch in the water or salt solution; allocating even starch emulsion; heating; or adding alkaline to improve pH value; proceeding non-crystal disposal; drying; grinding; sieving; placing obtaining the product with higher chemical and biological reacting activity and better penetrability and manufacturing property.

The invention provides a copper tin alloy-based three-dimensional copper tin compound nanoparticle-microporous copper lithium ion battery cathode and a one-step preparation method. The lithium ion battery cathode is composed of a three-dimensional microporous copper framework with porous walls / pore orientation and copper tin compound nanoparticles. The copper tin compound nanoparticles are Cu6Sn5nanoparticles or mixed particles of Cu6Sn5 nanoparticles and Cu3Sn nanoparticles. The copper tin compound nanoparticles are dispersed and embedded in pore structures of the three-dimensional microporous copper framework with porous walls / pore orientation to form a nanoporous structure so as to finally form a double continuous opened micro-nano graded porous structure. The lithium ion battery cathode provided by the invention can alleviate huge volume change generated in circular lithium embedding and removing processes of the tin cathode material, so that the cyclic performance of the tin cathode is improved.

A real-time, on-line method and analytical system for determining halohydrocarbons in water which operate by (1) extracting on-line samples; (2) purging volatile halohydrocarbons from the water (e.g., with air or nitrogen); (3) carrying the purge gas containing the analytes of interest over a porous surface where the analytes are adsorbed; (4) recovering the analytes from the porous surface with heat (thermal desorption) or solvent (solvent elution) to drive the analytes into an organic chemical mixture; (5) generating an optical change (e.g., color change) in dependence upon a reaction involving the analytes and a pyridine derivative; and (6) measuring optical characteristics associated with the reaction to quantify the volatile halogenated hydrocarbon concentration.

The invention discloses a semiconductor emitting material that is stimulated by near ultraviolet or ultraviolet. The constituents are ZnO: Sx, My and 10-4<=x<=10-2, 0<=y<=0.2. M is selected from Li, Na, K or rare earth of Eu, Tb. When M is Na, it has better emitting effect. The invention also discloses the manufacture method and the performance testing result. The invention has strong absorption near 370-440nm wavelength ultraviolet and blue light zone, and has strong emission between 450-600nm wavelengths. It could be used in LED and LD.

The invention discloses a functional material for removing nitrate nitrogen in water and preparation and application methods thereof. The functional material is obtained by taking sulfur powder and high-activity iron-manganese sulfide powder as main raw materials and taking biomass fibers and a binder as additives, uniformly mixing the raw materials, adding water for molding, and then curing to finish hydration or carbonation. mixing functional material and limestone or dolomite particles and then fillinginto a biological filter, inoculating thiobacillus and culturing until a biological membrane is mature, and treating the wastewater in an upwelling mode according to the hydraulic retention time of 1-5h so that the removal rate of nitrate nitrogen in the wastewater reaches 80% or above.

The invention provides a preparation method of micro-and nanoscale protein crystals capable of stably existing in air. Protein mini-crystals grow through the simple and feasible method, chemical cross-linking is conducted on the mini-crystals through a cross-linking agent, and the protein mini-crystals capable of stably existing in air are obtained. The method is convenient to operate, economical and practical; the prepared protein mini-crystals do not need crystal rings or capillary tubes when used for free electron laser diffraction, and background scattering can be eliminated; when the crystals are used as a catalyst, a sample can not be dissolved and can be repeatedly used.

The invention relates to the field of luminescent materials, and discloses a red light phosphor excited by blue light, which has strong absorption to blue visible light between 430 and 500 nm and has strong emission between 630 and 650 nm. The constituents are expressed by the following general formulas: RMoO4: (Pr, MX)n, 0.005 is less than or equal to n and n is less than or equal to 0.05; wherein, R is an alkaline earth metal selected from calcium, magnesium, strontium or barium, M is a alkali metal selected from lithium, natrium or kalium; Y is a halogen selected from fluorine, chlorine, bromine or iodine. The preparation method is that grind and uniformly mix the precursor containing the alkaline earth metal, the precursor containing molybdenum and the precursor containing praseodymium with the alkali metal-halogen precursor, and then sintering the mixture for 1-5 hours at the temperature of 800-1000 DEG. The method has the advantages of low sintering temperature by adopting a grinding method to be combined with a gas oxidation method, simple production technology which is easy to be operated, and low cost raw materials which are easy to be obtained and applicable to industrial production. Furthermore, the light emitting efficiency of the obtained products is very high with excellent chemical and optical stability.

In a method for enhancing the efficiency of bitumen recovery from oil sands ore, CaO lime (or Ca(OH)2) is mixed into an oil sands ore-water slurry prior to or during the operation of slurry-based bitumen extraction processes. The lime is introduced at dosages effective to reduce the electro-chemical attraction between clay particles and bitumen in the slurry, thereby promoting detachment of clay particles from bitumen droplets in the ore-wafer slurry. This occurs because water-soluble asphaltic acids formed at the bitumen-water interface act as surfactants which reduce or eliminate the activity of Ca2+ and Mg2+ ions binding the clay particles and bitumen together. The detachment of clay particles promotes the attachment of air bubbles to the bitumen droplets, thereby forming a bitumen-rich froth which will float to the surface of the ore-water slurry, thus facilitating bitumen recovery.

The invention discloses a method for preparing high-performance natural rubber through a biological coagulation technology. The method comprises the steps of fresh latex symbiotic microorganism solidification, extruding dehydration, crepe pressing, cleaning, granulation, drying and packaging. According to the fresh latex symbiotic microorganism solidification technology, cultured symbiotic bacteria solidification liquid and fresh latex are mixed and placed into a constant-temperature solidification box for constant-temperature solidification, and steps are executed, and finally the high-performance natural rubber is obtained. Mass industrial production can be achieved, and rapid odorless solidification of latex is achieved; due to rapid biological solidification, little non-rubber matter of natural rubber latex is decomposed, it is ensured that the chemical and physical properties of a solidified white gelatinous lump are quite high, strain induced crystallization can easily occur on the obtained high-performance rubber, and therefore the high-performance rubber has quite high autohension, good green strength and excellent processing performance.

The invention provides a chemical production safety operation lecturing or competition system, which comprises a scene simulation device, a control subsystem, an accident phenomenon simulation subsystem, and a scoring subsystem; the scene simulation device has a simulation structure of a true production device and runs after filling simulation fillers; the accident phenomenon simulation subsystem is arranged on the scene simulation device according to the accident occurring position of the true production device, and the control subsystem is connected with the accident phenomenon simulation subsystem so as to carry out accident simulation control and action information detection; the scoring subsystem is connected with the control subsystem, and used for determining the scoring results according to the action information obtained by the control subsystem. The chemical production safety operation lecturing or competition system simulates the common dangerous product accidents in modern chemical industry. According to the accidents, the accident phenomena can be simulated, the chemical and environment-friendly consciousness of an operator on dangerous products can be enhanced in the accident treatment process, and the social problem of deficient practical operating capability in colleges and universities can be made up. The chemical production safety operation lecturing or competition system provides important practice link for colleges and universities, vocational colleges and pre-job training.

The invention provides high-hardness thermosetting self-repairing polyurethane and a preparation method thereof. According to the technical scheme, isocyanate-terminated polyurethane containing 2-hydroxyethyl disulfide as a functional group, and polyvinyl alcohol grafted polycaprolactone are cross-linked and cured to synthesize thermosetting self-repairing polyurethane with high self-repairing efficiency, high hardness and transparency. Self-repairing of the material is achieved on the basis of disulfide bond exchange reaction, polyvinyl alcohol grafted polycaprolactone is taken as a cross-linking agent to provide a cross-linking network, and the obtained material has excellent mechanical properties, high Young modulus, good transparency, high self-repairing efficiency, shape memory, reprocessing and other properties. Besides, the invention also discloses a synthesis method of the polyvinyl alcohol grafted polycaprolactone, the polyvinyl alcohol grafted polycaprolactone prepared by themethod has a plurality of hydroxyl sites, the hydrogen bond interaction among molecular chains is increased, and higher chemical and physical crosslinking degree is achieved.

A concrete terrace protective material includes, by weight, 150-280 parts of an organic modified silicate, 80-160 parts of an alkali metal silicate, 0.1-50 parts of a catalyst, 1-30 parts of a chelating agent, 5-50 parts of a pH conditioning agent and 500-1200 parts of water. The organic modified silicate is prepared, through a sol-gel method, from an organic silane containing hydroxy and / or carboxyl, and tetra(C1-C4 alkyl) orthosilicate in a composite manner. The material can improve surface strength, hardness and wear resistance of concrete; meanwhile, the material can effectively enable a surface of the concrete to be compact and can inhibit intrusion of water, oil and other corrosive substances, thereby obtaining a dust-free and compact integral body. The material can fundamentally alleviate or prevent corrosion of concrete, improve usage performance of the concrete and prolong service life of the concrete.

The invention provides environment-friendly latex paint taking ceramic polishing waste residues as regenerated filling and a preparation method thereof and relates to the technical field of environment protection. The environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filling is prepared from the following raw materials in percentage by weight: 10 percent to 50 percent of the ceramic polishing waste residues, 10 percent to 50 percent of emulsion, 0 to 28 percent of pigment and filling, 1 percent to 21.5 percent of an additive and the balance of water. According to the latex paint provided by the invention, resources are saved, the cost is reduced and the latex paint is safe and environmentally friendly; the latex paint has relatively good chemical and mechanical performance including acid and alkali resistance, scrubbing resistance, wear resistance and the like; the environment-friendly latex paint has a wide application range and a better application prospect. The preparation method of the environment-friendly latex paint taking the ceramic polishing waste residues as the regenerated filling comprises the following steps: after sandingand pulping the ceramic polishing waste residues, the pigment and filling, the additive and the water, adding the emulsion and blending. The method has the advantages of simple preparation technology,strong controllability and low preparation cost is suitable for large-scale production.