134 results about "Zinc" patented technology

The present invention is directed to novel organometallic complexes as catalysts for the reaction of compounds with isocyanate and hydroxyl functional groups to form urethane and/or polyurethane and the process employing such catalysts. More particularly, the present invention is directed to novel complexes of zinc(II) with substituted amidines. These novel catalysts are useful for the production of urethanes and polyurethanes which are important in many industrial applications.

The method for preparing active carbon from bamboo raw material includes the following steps: (1). mao bamboo and waste produced by making bamboo wares are used as raw material, through cutting and screening, and screening bamboo scraps or screening bamboo scraps and making them form; (2). low temp. pyrogenic distillation carbonization of bamboo raw material in carbonization furnace, its pyrogenic distrillation carbonization temp. is 200-600 deg.C; (3). in the presence of micro oxygen placing the carbonized bamboo raw material into activating furnace and making activation by using superheatedsteam at high-temp., activating temp. is 400-850 deg.c; and (4) breaking or water washing activated active carbon, drying, sorting and sieving to obtain the invented product. Before carbonization thebamboo raw material can be soaked in mixed solution formed from zinc chloride and hydrogen peroxide or mixed solution formed from phosphoric acid and hydrogen peroxide. Its product not only possessesthe advantages of all the wooden active carbons, but also its methylthionine chloride decolouring power can be raised by 20%.

The invention discloses a method for preparing a ZnWO4 nanorod photocatalysis material. The method includes preparing a tungstic acid solution A, a zinc chloride solution B and a sodium citrate solution C; dropwise adding the solution A and the solution C into the solution B to form a solution D; regulating potential of hydrogen (pH) of the solution D to 6-8, and uniformly stirring to obtain a solution E; adding the solution E into a microwave hydrothermal reaction kettle, performing a heating reaction, naturally cooling the solution E to the room temperature after the reaction is finished, and taking out the reaction kettle; and opening the reaction kettle, washing a product for 4-6 times by deionized water and absolute ethyl alcohol, and drying to obtain the ZnWO4 nanorod photocatalysis material. According to the method, the microwave hydrothermal method is utilized to rapidly synthesize the ZnWO4 nanorod with the photocatalysis property, the later crystallization heat treatment is not required, the obtained product is high in purity, and the shape is controllable. The ZnWO4 nanorod with the photocatalysis effect can be synthesized in 10 minutes, and the degradation rate of the prepared ZnWO4 nanorod to rhodamine B in 50-60 minutes can reach to 97%-99%.

The invention relates to a technology for extracting zinc, lead and silver step by step by processing zinc-leached residues by a full wet process, and belongs to the technical field of zinc-leached residue recycle. The technology comprises the following steps of: preparing sulfuric acid into an appropriate concentration, and performing two-stage acid leaching in an appropriate liquid-solid ratio and at a high temperature to obtain slurry; filtering and separating the slurry to obtain lead-silver residues and a zinc-containing solution; oxidizing, neutralizing and deironing the zinc-containing solution, and depositing zinc by using sodium sulphide; and eluting the lead-silver residues, blending with caustic lye at an appropriate concentration to obtain slurry at a certain concentration, reacting at a certain temperature and in a certain solid-liquid ratio, and filtering and separating to obtain a filter cake and a filtrate, wherein the filtrate is directly added with sodium sulphide for lead deposition and the filter cake returns to a silver cyaniding leaching process. The technology is short in process, simple in operation, low in cost and mild and loose in reaction conditions; an acid solution and an alkali solution at high concentrations are not required; requirements on equipment are low; the extraction rate of metal is higher than that in the conventional method; no additional waste solid, waste liquid and waste gas are discharged; the recycle of the eluate and the filtrate is realized; and environment pollution is avoided from the source.

The invention relates to composite reinforced multinutrition rice and a process thereof, belonging to the field of grain processing. The invention can be popularized and applied to the nutrition reinforcing process of other grains. In the invention, the composite reinforced multinutrition rice is processed by reinforcing five nutrients of folic acid, sodium ferric ethylene diamine tetraacetic acid, L-lysine hydrochloride, zinc gluconate and calcium lactate in rice by the steps of ultrasonic soaked adsorption, steaming gelatinization and microwave drying. The reinforced rice disclosed by the invention is rich in multiple nutrients and has short production cycle, high processing efficiency and high product quality; and appearance and other items of quality indexes meet the requirement.

The invention discloses a process for recovering valuable metal from residues containing zinc, comprising the following steps of: adding the residues containing the zinc to a melting furnace; spraying a gas containing oxygen and coal dust into a hearth of the melting furnace from the top and the side part of the melting furnace; discharging molten slag inside the melting furnace into a fuming furnace; spraying the gas containing the oxygen and the coal dust into the molten slag inside the fuming furnace; introducing the gas containing the oxygen above the molten slag inside the fuming furnace; collecting the dust of fumes inside the melting furnace and the fuming furnace; and discharging waste slag inside the fuming furnace. The process recovering the valuable metal from the residues containing the zinc has continuous operation, a large treatment quantity of the residues and high recovery rate of the valuable metal.

The present invention relates to a nutritional composition, in particular directed to toddlers and/or a weaning child, said nutritional composition comprising a protein source, a source of available carbohydrates, a lipid source, at least one probiotic microorganism, and prebiotics, wherein said lipid source comprises DHA (docosahexaenoic acid). The nutritional composition improves cognitive performance, in particular learning and memory of the child. Preferably, the composition comprises iron, zinc, vitamin D and/or sialic acid. Preferably, the composition comprises a source of phospholipids rich in DHA.

The invention belongs to the field of luminescent materials, and discloses a preparation method for a gallium-doped zinc oxide transparent conducting film. The method comprises the following steps of: preparing a Ga2O3:ZnO ceramic target; performing vacuum treatment on a cavity of coating equipment; and adjusting parameters of a magneto-controlled sputter coating process, and coating a film. According to the prepared gallium-doped zinc oxide transparent conducting film, the used target is a single-Ga-component target, and the film with different Ga contents can be prepared by adjusting the parameters of the magneto-controlled sputter coating process; and the resistivity of the gallium-doped zinc oxide transparent conducting film is reduced and then increased along with the increasing of the Ga content; and when the Ga content is 4.6 weight percent, the lowest resistivity is 6.6*10<-4> Omega cm, and the average visible light transmissivity is more than 85 percent.

The invention discloses an acidic electroplating zinc-nickel alloy electrolyte, a preparation method and an electroplating method thereof; the electrolyte comprises a basic electrolyte and additives; the basic electrolyte is a weakly acidic solution which comprises zinc ions with mass concentration of 27-38g/L, nickel ions with mass centralization of 23-31g/L, chloride ions with mass concentration of 150-220g/L and boric acid with mass concentration of 25-35g/L at Ph value of 4.8-5.4 and at temperature of 28-35 DEG C; and the additives comprise a brightening agent of 1-12 ml/L, a walk agent of 3-30 ml/L and a disodium ethylenediamine tetraacetate complexant of 10-50 ml/L. The acidic electroplating zinc-nickel alloy electrolyte is rational in proportion and proper in matching; the galvanizing efficient is improved by 30-40% compared with the traditional acidic galvanizing; the corrosion resistance of a zinc-nickel coating can be improved remarkably and the service life of the coating is prolonged; the coating is high in hardness, corrosion resistance, abrasive resistance, pyro-oxidation resistance, compactness and comprehensive performance; the electrolyte does not need to the post-treatment technique, so that the adopted electroplating method is saved in cost, efficient and rapid, convenient in operation and far superior to the traditional alkaline zinc-nickel electroplating.

The invention relates to a zinc-aluminum coating enhanced with particles in micro-nano sizes, and belongs to the field of surface protection of magnetic materials. The coating is used for being coated on the surface of a neodymium-iron-boron permanent magnet and the zinc-aluminum coating mixed with the micro-nano particles, and the micro-nano particles are one or more kinds of titanium dioxide, silicon oxide, aluminum oxide, aluminum and cerium oxide in the micro-nano sizes. The technical scheme of the zinc-aluminum coating lies in that the micro-nano particles are mixed into the zinc-aluminum coating, so that the zinc-aluminum coating concurrently has an own anti-corrosion property of the coating and an incidental high-temperature oxidation resistant property, an incidental shock resistant property and incidental high tenacity of the micro-nano particles, and a mechanical property and a scratch resistant property of the surface coating of the anti-corrosion neodymium-iron-boron permanent magnet are greatly improved. The invention further relates to a production method of the zinc-aluminum coating enhanced with the particles in the micro-nano sizes, and the production method comprises the following steps: processing matrixes, preparing a coating solution, coating the matrixes and drying the coating solution.

The invention belongs to the chemical technical filed, relating to production formula of an anti-aging rubber belt, which is composed of neoprene adhesive, natural adhesive, sulfur, vulcanizing agent DTDM, zinc oxide, antioxidant 4010Na, antioxidant ODA, stearic acid, paraffin, high wear-resistance carbon black, accelerator DM, accelerator Na-22 and engine oil. The preparation method is that the materials are face smelted in a face smelting machine. Then certain weight of the face smelted rubber compound is put into a vulcanizer to be vulcanized. The product is obtained after the vulcanization. The product has the advantages of low cost, anti-aging, long service life and no blooming on the surface.

Methods are used to develop and evaluate new materials and deposition processes for use as TCO materials in HJCS solar cells. The TCO layers allow improved control over the uniformity of the TCO conductivity and interface properties, and reduce the sensitivity to the texture of the wafer. In Some embodiments, the TCO materials include indium, zinc, tin, and aluminum.

The invention relates to a double-component epoxy zinc-enriched primer and the making method thereof, used in anticorrosive engineering of steel constructions, such as pipelines, shop equipment, ships, bridges and storage tanks, comprising: adding mixed solvent of dimethylbenzene and normal butanol in epoxy resin, then adding in surface active modified polyurethane, gamma-glycidol trimethoxy silane, silicon oil and zinc powder, and mixing uniformly, grinding and then adding in polyurethane wax and blending uniformly into solution A; composing solution B by polyurethane and dimethylbenzene; and it is mixed of solutions A and B as used, where the content of zinc powder in the coating is above 80%, and it has excellent anticorrosive performance, convenient to construct.

The invention discloses inorganic water-based metallic paint and a preparation method thereof. The paint is prepared from raw materials in percentage by weight as follows: deionized water, an anti-freezing agent (ethylene glycol), a film-forming aid (dodecanol carbonate), a bactericide (Rohm and Haas LXE), an organic silicon defoaming agent (Rohm and Haas 505), a leveling agent (Rohm and Haas RM2020), nano titanium dioxide or nano zinc dioxide, sericite powder, nano calcium carbonate powder, potassium trimethylsilanolate, silica sol NM-1020, fumed silica, pearl powder, an emulsion and an associative alkali swelling thickener. The inorganic water-based metallic paint is uniform to spray during construction, the pearl powder is arranged orderly, the color is uniform, the luster of the pearl powder is completely restored, the surface is fine and smooth, and the hand feeling is fine and smooth.

The invention provides soil ecological system restoring organic fertilizer which is high in content of nutrients available for crops and reasonable in nutrition collocation, is thoroughly decomposed, has a small number of foreign microbes and is high in organic matter content. The soil ecological system restoring organic fertilizer comprises organic raw materials, microbial agents and NPK, wherein the organic raw materials comprise cake fertilizer, green manure, plant protein and biochemical humic acid; the microbial agents comprise nine microbial bacteria such as nitrogen-fixing bacteria, phosphorus-solubilizing bacteria, potassium-releasing bacteria, actinomycetes, saccharomycetes, lactic acid bacteria, photosynthetic bacteria, paenibacillus polymyxa and bacillus subtilis; the NPK accounts for 5-25% of the total fertilizer; the NPK comprises ammonium sulfate, ammonium chloride, ammonium nitrate phosphate, ammonium phosphate, potassium sulfate, potassium chloride, potassium nitrate, magnesium sulfate, zinc sulfate and borax; the organic raw materials are taken as the balance of the fertilizer.

The invention provides a multifunctional organic/inorganic compound fertilizer and a preparation method thereof. The compound fertilizer is composed of the following raw materials by weight percent: 25-30% of urea, 5-10% of monoammonium phosphate, 10-18% of potassium sulphate, 27-32% of humic acid, 1.5-3% of zinc sulfate, 0.1-0.3% of microorganism bacterial liquid, 12-20% of diatomite and 1.9-2.7% of sophorolipid, wherein humic acid is obtained from decomposed coal through activation treatment. During preparation, urea, monoammonium phosphate, potassium sulphate, humic acid, zinc sulfate, microorganism bacterial liquid, diatomite and sophorolipid are added to a mixing crusher for crushing, so that a powdery mixture is obtained; the powdery mixture is added to a drum coating-pelleting-drying-cooling integrated machine to be pelleted, dried and cooled so that a granular mixture is obtained; the microorganism bacterial liquid and the diatomite are mixed and then sprayed to the mixture so that a crude product of the multifunctional organic/inorganic compound fertilizer is obtained; and finally, the crude product is added to a vibrating sieve for screening and then the obtained oversize is the multifunctional organic/inorganic compound fertilizer.

The present invention provides semiconductor nanoparticles which emit light at room temperature and include a sulfide or oxide containing zinc, a Group 11 element in the periodic table, and a Group 13 element in the periodic table as a main component or a sulfide or oxide containing a Group 11 element in the periodic table and a Group 13 element in the periodic table as a main component. For example, the semiconductor nanoparticles are represented by Zn_(1-2x)In_xAg_xS (O<x≦0.5).

The present invention relates to a rubber composition, and discloses a high-damping rubber composition and a preparation method therefor. A high-damping rubber composition comprises the following components: 100 parts by mass of diene rubber, 2-10 parts by mass of stearic acid, 2-40 parts by mass of an antioxidant, 2-20 parts by mass of zinc oxide, 2-10 parts by mass of phenolic resin, 100-140 parts by mass of a reinforcing agent and 2-5 parts by mass of a sulfurizing agent. Under the joint action of the antioxidant and the phenolic resin or the like, the composite material obtained by the diene rubber in the present invention has a good vibration reduction damping performance, while the mechanical performance, the storage modulus and the loss modulus are improved. A dynamic mechanical performance curve of the composite material moves to a direction of high temperature, and the rubber composition has a relatively wide effective damping temperature range.

The invention discloses a preparation method of a MnZn (Manganese-Zinc) soft magnetic ferrite material containing modified nanoscale titanium dioxide. The preparation method comprises the following steps of: preparing main materials, preparing auxiliary materials, pre-burning, mixing and secondarily ball-milling the main materials and the auxiliary materials, shaping and sintering to obtain a MnZn soft magnetic ferrite magnetic core of modified nanoscale titanium dioxide. Through the addition of the modified nanoscale titanium dioxide, the MnZn soft magnetic ferrite material can play a bridge combination role among different raw materials; the used raw materials have the advantages of better distribution, high density, high grain boundary resistivity, low porosity and great and even grains; the prescription of the raw materials is reasonably improved, so that the magnetic core has higher magnetic conductivity after firing; and the indexes such as power loss, frequency feature, curie temperature, saturation flux density and the like are greatly improved.

The invention relates to the use of sintered article of Sn-Mg-Al ternary hydrotalcite in adsorbing hexavalent chromium in water, the article is obtained through sintering hydrotalcite 3-8 hours at 400-550 deg C and can realize high adsorbent capacity for hexavalent chromium.

The invention relates to a transmission of a manipulator for dredging slag from liquid zinc of a zinc pot, which comprises a saddle seat, a slag push plate, a slag shovel hopper, a saddle seat driver, a material hopper balancing pole device, a crank connecting rod and a crank connecting rod transmission mechanism. The crank connecting rod is connected with the slag shoveling hopper. The transmission is characterized in that the saddle seat driver is a rodless cylinder, a slag push plate connecting rod is connected with the rodless cylinder of the saddle seat, the crank connecting rod transmission mechanism is a cylinder type crank connecting rod transmission mechanism, and the material hopper balancing pole device is a double-rod type material hopper balancing pole device. The transmission has the advantages that power is reasonably distributed, various stresses are scientifically balanced, accordingly, the opening and closing slag dredging area of the manipulator for dredging slag is increased, a slag dredging range is expanded, the manipulator is opened and closed for slag dredging, collecting and discharging continuously, smoothly, stably and quickly, power transmission for operation in dangerous areas can be realized, and the manipulator has popularization and application values.

The invention discloses a Cu-Ni-Sn alloy belt foil for 5G communication and a preparation method thereof. The Cu-Ni-Sn alloy belt foil is prepared from the following raw material components in percentage by weight: 8.5-9.5% of nickel, 5.5-6.5% of tin, 0.2-0.5% of manganese, 0.1-0.3% of zinc, and the balance copper and impurities. The preparation method comprises the following steps: melting weighed copper and nickel, covering with wood charcoal, sequentially adding manganese, tin and zinc, stirring and dissolving after heating up to a temperature of 1300-1330 DEG C, slagging-off, covering withwood charcoal, standing and converting, slagging-off, and covering with wood charcoal; performing pull-casting, homogenizing annealing treatment, face-milling, cold-rolling cogging, intermediate solid-solution treatment, intermediate rolling, intermediate solid-solution treatment and finished product rolling by adopting a reverse pushing-pulling and stopping blank pulling way, and obtaining foilwith a thickness being 0.04-0.1mm. Elasticity, wear resistance and corrosion resistance of a Cu-Ni-Sn copper alloy in the prior art are kept, and meanwhile, the Cu-Ni-Sn alloy belt has good forming property, relatively high conductivity and excellent shielding performance, can realize industrial production of the Cu-Ni-Sn alloy belt foil for 5G communication, replaces import, fills up the domesticblank to promote copper processing industry development needs of the current stage.