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92 results about "Ammonia ammonium" patented technology

Ammonia, Ammonium. Ammonium (NH 4 +) — or its uncharged form ammonia (NH 3) — is a form of nitrogen which aquatic plants can absorb and incorporate into proteins, amino acids, and other molecules. High concentrations of ammonium can enhance the growth of algae and aquatic plants.

Method for preparing activated zinc oxide by utilizing high-arsenic secondary zinc oxide resource ammonia-ammonium process

The invention relates to a method for preparing activated zinc oxide by utilizing a high-arsenic secondary zinc oxide resource ammonia-ammonium process, which belongs to the field of inorganic chemical industry and secondary resource recovery. The method comprises the following technical processes in sequence as follows: leaching, purifying, ammonia distillation, washing, dry crushing, calcining and the like. According to the method for preparing the activated zinc oxide by utilizing the high-arsenic secondary zinc oxide resource ammonia-ammonium process, by taking high-arsenic-antimony secondary zinc oxide generated in a lead and zinc smelting process as a raw material, selective leaching is performed by adding ammonia water and ammonium bicarbonate; then, two-stage purification and deeppurification are performed by ferrous salt, hydrogen peroxide, sulfide and zinc powder; and the ammonia water is recycled and valued metal waste residues are comprehensively recovered. The method forpreparing the activated zinc oxide by utilizing the high-arsenic secondary zinc oxide resource ammonia-ammonium process has strong adaptability on zinc-contained materials and is capable of treating various complicated zinc-contained resources. The method for preparing the activated zinc oxide by utilizing the high-arsenic secondary zinc oxide resource ammonia-ammonium process has the advantages of short flow, production process closed cycle, convenience in operation, low energy consumption, excellent product quality, high economic benefits, low pollution, high comprehensive recovery capacityand the like, and is suitable for industrial production and popularization.
Owner:CHENZHOU CITY JINGUI SILVER IND CO LTD

Multi-stage absorbing desulfurizing device by adopting ammonia-ammonium sulfate method

ActiveCN105148712AImprove ammonia utilizationImprove oxidation efficiencyCombination devicesCycloneFlue gas
The invention discloses a multi-stage absorbing desulfurizing device by adopting an ammonia-ammonium sulfate method. The absorbing desulfurizing device comprises a flue gas desulfurizing absorption tower, an absorption liquid circulating tank, a thin slurry circulating tank and a wet-type electric dust remover, wherein the flue gas desulfurizing absorption tower comprises a concentrated slurry circulating tank, a concentration pre-absorption section, an absorption section, a thin slurry washing section and a defogging section that are arranged in a vertical manner; the concentration pre-absorption section comprises at least a layer of concentrated slurry spraying layer; the absorption section comprises an absorption liquid cyclone defogging liquid collector and at least a layer of absorption liquid spraying layer; the thin slurry washing section comprises a thin slurry cyclone defogging liquid collector and a thin slurry spraying layer; the defogging section comprises a defogger and a defogger washing spraying layer. According to the multi-stage absorbing desulfurizing device by adopting the ammonia-ammonium sulfate method, provided by the invention, flue gas cooling, multi-stage defogging absorption and multi-section oxidization are completed in the desulfurizing absorption tower, the utilization rate of ammonia is increased by regulating the ammonia adding positions, and the problems that the concentration of slurry in multiple sections is controlled unsatisfactorily, and the content of aerosol in flue gas after desulfurization is too high are solved, wherein the problems are caused due to the fact that although the conventional desulfurizing absorption tower is divided into multiple sections, slurry in the multiple sections are carried with gases heavily.
Owner:SINOPEC NANJING ENG & CONSTR +1

Method for producing high-purity nano-zinc oxide by ammonia method using electrolytic zinc acid-leaching residues

The invention discloses a method for producing high-purity nano-zinc oxide by an ammonia method using electrolytic zinc acid-leaching residues. The method comprises the following steps of: adding slaked lime being 1-5% of the mass of electrolytic zinc acid-leaching residues before a leaching step to perform activation, then leaching with ammonia-ammonium bicarbonate solution, adding 0.3-0.5kg of sodium fluorosilicate to per cubic meter of ammonia-ammonium bicarbonate solution, and refining after performing purification and impurity removal. According to the method for producing high-purity nano-zinc oxide by ammonia method using electrolytic zinc acid-leaching residues, the electrolytic zinc acid-leaching residues can be leached efficiently, the high-purity nano-zinc oxide with the purity up to above 99.7% can be obtained, and the high-purity nano-zinc oxide has high practical value and economic value; all the valuable and harmful heavy metals in the electrolytic zinc acid-leaching residues are leached and utilized, so that the obtained final leaching residues are converted from electrolytic zinc acid-leaching residues as high hazard wastes into ordinary solid wastes, the environment is protected, and the resources are rationally utilized.
Owner:SICHUAN JUHONG TECH

Method of producing high-purity magnesium hydroxide and magnesium oxide by low-grade magnesite

The invention relates to the field of mineral resource processing technology, in particular to a method of producing high-purity magnesium hydroxide and magnesium oxide by low-grade magnesite. The method comprises the following steps: calcining low-grade magnesite in a calcining furnace at calcining temperature to obtain light-calcining magnesite ore and carbon dioxide, recovering the carbon dioxide, and crushing the calcined light-calcining magnesite ore. By utilizing a method of realizing leaching, purification and separation coupling of the low-grade magnesite and producing high-pruity magnesium hydroxide and magnesium oxide through recycling of ammonia-ammonium slat, the advantages of preparing high-purity products by adopting the traditional bittern-ammonia process can be fully achieved, the method is of green and cycling clean production technique method, no wastes are emitted in the whole process, resources can be comprehensively utilized, the utilization rate of the magnesite resource can be improved, strong acid is not consumed in the technique process, other constitutions are fully utilized, the pollution to the environment can be reduced, and the method provides a new approach for reasonably developing and utilizing the low-grade magnesite resources.
Owner:新疆蓝天镁业股份有限公司

Ammonia-ammonium sulfate method dual circulation three segments desulfurizing tower

InactiveCN101053759AAvoid formingOptimum Oxidation ConcentrationDispersed particle separationEngineeringDual cycle
The invention relates to the field of wet flue gas desulfurization, especially to a flue gas thionizer of ammonia-ammiaonia sulfate method. The thionizer is divided into three segments, wherein the lower segment of the thionizer is a circulation fluid-absorbing tank, the middle segment of the thionizer is a concentration cooling segment, and the upper segment is an absorbing segment. The concentration cooling segment is separated to the absorbing segment and the circulation fluid-absorbing tank by tower-separating plate at the two end planes upper and lower. The dual cycle three-segment thionizer of ammonia-ammiaonia sulfate method of the invention resolves the design disadvantage of general single-tower and multi-tower. The byproduct that is ammiaonia sulfate is concentrated by high-temperature flue gas to reduce the temperature to a temperature propitious to absorb. The dual cycle design of the thionizer makes the cycle absorbing liquid to be not contacted directly with the high-temperature flue gas to control the cycle absorbing liquid at a low concentration, and is beneficial to the desulfurization clear flue gas to avoid the condition forming aerosol and make the solution sent to the oxidation ditch approaching to the optimal oxidation concentration. The composite cost for flue gas desulfurizing can be reduced, using the quantity of heat of the flue gas in the entrance to cycle concentrate the diluted solution of ammonia-ammiaonia.
Owner:CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY

Method for continuous determination of calcium oxide and magnesium oxide content of limestone and dolomite

The invention discloses a method for continuous determination of calcium oxide and magnesium oxide content of limestone and dolomite. The method comprises adding a limestone or dolomite sample into a Teflon plastic beaker, preparing a blank contrast without the limestone or dolomite sample, respectively adding hydrochloric acid and nitric acid-hydrofluoric acid into the beakers to dissolve the sample, adding perchloric acid into the beakers to produce smoke, adding hydrochloric acid into the breakers, carrying out salt heating dissolution, transferring the reagents into a big volumetric flask, carrying out dilution until the liquid level reaches to the scale and metered volume is obtained, dividing each solution in the sample and blank contrast into two parts with the same amount, orderly adding appropriate amounts of triethanolamine, water, hydroxylamine hydrochloride, a potassium hydroxide solution and calcein into one part in the sample and blank contrast, carrying out titration by an EDTA standard solution until the fluorescent green color disappears, recording the volume, calculating calcium oxide content, orderly adding appropriate amounts of triethanolamine, water, hydroxylamine hydrochloride, an ammonia-ammonium chloride buffer solution and an eriochrome black T indicator into the other part in the sample and blank contrast, carrying out titration by an EDTA standard solution until the prunosus color is changed into a blue color, recording the volume and calculating magnesium oxide content.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Continuous determination method for content of calcium oxide and magnesium oxide in blast furnace slag

The invention discloses a continuous determination method for content of calcium oxide and magnesium oxide in blast furnace slag. The continuous determination method comprises the following steps: putting a blast furnace slag test sample into a polyethylene plastic beaker, and taking the other beaker without the test sample as a blank control; then adding hydrochloric acid and nitric acid-hydrofluoric acid respectively to dissolve; adding perchloric acid to form smoke, and adding hydrochloric acid to heat dissolved salts; transferring testing solutions into a high-capacity bottle respectively and diluting to a scale to make the volume constant; taking two parts of the solutions with the same quantity from each solution; sequentially adding triethanolamine, water and hydroxylamine hydrochloride into one part of the test sample and the blank control; adding a potassium hydroxide solution, and adding several drops of magnesium sulfate and a suitable amount of calcein; titrating with an EDTA (Ethylene Diamine Tetraacetic Acid) standard solution until fluorescent green disappears and stopping titrating, and recording the volume to calculate the content of calcium oxide; sequentially adding triethanolamine, the water and hydroxylamine hydrochloride into the other part of the test sample and the blank control; adding an ammonia-ammonium chloride buffering solution, and adding a suitable amount of a chrome black T indication agent; and titrating with an EDTA standard solution until purple red becomes blue and stopping titrating, and recording the volume to calculate the content of magnesium oxide.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Method for preparing dichloroaniline by continuously catalyzing and hydrogenating dichloronitrobenzene

The invention discloses a method for preparing dichloroaniline by continuously catalyzing and hydrogenating dichloronitrobenzene. The method comprises the following steps: I, filling a fixed bed reactor with catalyst, and introducing reduction gas into the fixed bed reactor to reduce the catalyst; II, lowering the temperature of the fixed bed reactor to a reaction temperature, pumping an ammonia-ammonium chloride buffer solution, introducing the molten dichloronitrobenzene, and carrying out the catalytic hydrogenation reaction under the condition of the reaction temperature; and III, separating the material after the catalytic hydrogenation reaction by virtue of an oil-water separator to obtain an organic phase and a water phase, wherein the organic phase is the dichloroaniline. The conversion rate of the raw material dichloronitrobenzene is more than or equal to 99.5 percent, the mass concentration of a dechlorination byproduct is less than 0.2 percent, the mass purity of the dichloroaniline is more than or equal to 99.2 percent, the stability of the catalyst is stable, the catalytic hydrogenation reaction efficiency is high, and the process flow is capable of saving the resource and is environmentally friendly.
Owner:XIAN CATALYST NEW MATERIALS CO LTD

Method for producing high purity nanometer zinc oxide by using steel plant dust

The invention discloses a method for producing high purity nanometer zinc oxide by using steel plant dust. The method for producing high purity nanometer zinc oxide by using steel plant dust comprises the following steps of: carrying out leaching with an ammonia-ammonium carbonate solution as the leaching agent, adding 0.3-0.5kg of sodium fluosilicate into the leaching agent per cubic meter, sequentially carrying out ammonia pre-steaming and purification and impurity removal, and finally carrying out refining treatment after purification and impurity removal. According to the method, the ammonia process is used for treating steel plant dust, the existing ammonia process is adaptively improved so that zinc in the steel plant dust can be fully recovered, and nanometer zinc oxide with the purity of more than 99.7 percent and the grain diameter of 10-60nm can be obtained by using the method; the method has the advantages of low energy consumption and high efficiency, and thoroughly solves the problem of zinc load of steel plant dust as the leaching agent can be recycled, thereby meeting the requirement of purifying the toxic components including zinc and alkali metals and realizing good production circulation as well as recovering valuable iron and carbon resources of steel plants.
Owner:SICHUAN JUHONG TECH

Method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust

The invention discloses a method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust. The method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust comprises the following steps of: carrying out leaching with an ammonia-ammonium carbonate solution as the leaching agent, adding 0.3-0.5kg of sodium fluosilicate into the leaching agent per cubic meter to obtain a leaching solution, then adding 50-60kg white lime into the leaching solution per cubic meter to carry out heating decarburization, and carrying out purification and impurity removal and then refining treatment. According to the method, the ammonia process is used for treating steel plant dust, and the existing ammonia process is adaptively improved, the leaching speed and the leaching rate of zinc in the dust are improved, and zinc oxide with the purity of more than 99.7 percent can be obtained; the method has the advantages of low energy consumption and high efficiency, and thoroughly solves the problem of zinc load of steel plant dust as the leaching agent can be recycled, thereby meeting the requirement of purifying the toxic components including zinc and alkali metals and realizing good production circulation.
Owner:SICHUAN JUHONG TECH

Flue gas desulfurizing device adopting ammonia-ammonium sulfite method

The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a flue gas desulfurizing device adopting an ammonia-ammonium sulfite method for recycling sulfur resources. The flue gas desulfurizing device comprises a desulfurization absorption system, an ammonium sulfite crystallization system, a process water system, an absorbent system and an emergency treatment system of the desulfurizing device, wherein the ammonium sulfite crystallization system, the process water system and the absorbent system are connected with the desulfurization absorption system. The flue gas desulfurizing device is characterized in that the main body of the desulfurization absorption system is an absorption tower having a double-tower structure or a single-tower double-section structure; a spray device is arranged in the tower; a collision type demister and a desulfurization tail gas purifying device are arranged in sequence above the spray device; an absorption liquid storing groove is formed at the bottom of the tower; the upper section of a single tower is connected with a circulating absorption liquid storing groove arranged outside the tower through a pipeline; and the ammonium sulfite crystallization system comprises a crystallizer provided with a jacket of cooling water. Due to the adoption of the flue gas desulfurizing device, the formation of an aerosol can be suppressed effectively, and secondary pollution is prevented; and compared with the conventional evaporative crystallization, the flue gas desulfurizing device has the advantage that a neutralizing condensation and crystallization way is adopted for ammonium sulfite serving as a side product, so that the energy consumption can be lowered.
Owner:陈有根

Method for continuously determining content of calcium oxide and magnesium oxide in bentonite

The invention discloses a method for continuously determining the content of calcium oxide and magnesium oxide in bentonite. According to the method, a bentonite sample is added to a polytetrafluoroethylene plastic beaker, another beaker is not filled with the bentonite sample and serves as a blank control, then hydrochloric acid and nitric acid-hydrofluoric acid are added for dissolution respectively, perchloric acid is added for smoking, then hydrochloric acid is added to heat and dissolve salt, test solutions are transferred to large volumetric flasks respectively and diluted to a constant-volume scale, each solution is split into two parts of solutions with equal quantities; triethanolamine, water and hydroxylamine hydrochloride are added sequentially to one of the sample and the blank control, a potassium hydroxide solution and an appropriate amount of calcein are added, an EDTA (ethylene diamine tetraacetic acid) standard solution is adopted for titration until fluorescent green disappearance, the volume is recorded, and the content of calcium oxide is calculated; triethanolamine, water and hydroxylamine hydrochloride are added sequentially to the other one of the sample and the blank control, an ammonia-ammonium chloride buffer solution and an appropriate amount of eriochrome black T indicator are added, the EDTA standard solution is adopted for titration until purple red turns into blue, the volume is recorded, and the content of magnesium oxide is calculated.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Flue gas desulfurization device based on ammonia-ammonium sulfate method

The invention discloses an flue gas desulfurization device based on an ammonia-ammonium sulfate method. The flue gas desulfurization device comprises a flue gas desulfurization absorption tower and an outer circulation tank, wherein the flue gas desulfurization absorption tower internally comprises an oxidation segment, a pre-absorption segment, an outer circulation absorption segment, a washing segment and a fog removing segment from bottom to top, wherein the oxidation segment is internally provided with an absorption tower kettle guide bucket, the absorption tower kettle guide bucket mainly consists of a lower straight bucket and an upper trumpet-shaped bucket enlarged upwards, and the pre-absorption segment arranged above a flue hole is internally provided with an annular sieve plate with multiple sieve pores; the outer annular wall of the annular sieve plate is tightly connected with the tower wall of the pre-absorption segment, and the inner annular wall of the annular sieve plate is connected with an annular baffle which is arranged in the vertical direction. One absorption tower is used for finishing the processes such as cooling, absorption and oxidation of flue, the problem that the flue gas absorption efficiency is reduced since the flue gas escapes along tower wall in the traditional desulfurization technology is solved, the oxidation segment and the oxidation tank do not need mechanical power, the operation is reliable, and the occupied land and energy consumption of the device are lowered.
Owner:SINOPEC NANJING ENG & CONSTR +1

Method for measuring calcium oxide and magnesium oxide content of tundish covering agent

The invention discloses a method for measuring the calcium oxide and magnesium oxide content of a tundish covering agent. The method has the advantages of being higher in speed, accuracy and efficiency. The method comprises the following steps: dissolving a test sample with hydrochloric acid and hydrofluoric acid, adding nitric acid, adding perchloric acid for smoking, adding hydrochloric acid after cooling, and performing heating to dissolve salts; adjusting the pH value to 7 with ammonia water, heating the test solution till the test solution boils, taking down and slightly cooling the test solution, filtering the test solution in a volumetric flask, washing precipitates for 7 to 8 times with a hot ammonium chloride solution, diluting the solution to a scale for volume fixation after cooling, equally dividing the solution into two parts for putting into two beakers; for one of the two breakers, adding small amounts of triethanolamine, water and hydroxylammonium chloride, adding a potassium hydroxide solution to adjust the pH value to 12, adding a proper amount of calcein, and performing titration with an EDTA standard solution until fluorescence green disappears to obtain the amount of calcium; for the other one of the two breakers, adding small amounts of triethanolamine, water and hydroxylammonium chloride, adding an ammonia-ammonium chloride buffer solution to adjust the pH value to 10, taking eriochrome black T as an indicator, and performing titration with the EDTA standard solution until the solution is pure blue to obtain the total amount of calcium and magnesium.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Measuring method for content of calcium oxide and magnesium oxide in open-hearth furnace slag, converter slag and electric furnace slag

The invention discloses a measuring method for the content of calcium oxide and magnesium oxide in open-hearth furnace slag, converter slag and electric furnace slag. The measuring method has the advantages of being rapider, more accurate and more efficient. A sample is dissolved with hydrochloric acid, nitric acid-hydrofluoric acid, perchloric acid is added for smoking, and after taking down and cooling, hydrochloric acid is added to heat and dissolve salt; the pH value of the test solution is adjusted to be 7 with ammonium hydroxide, the test solution is heated to be boiled, taken down, slightly cooled and filtered in a volumetric flask, sediment is washed 7-8 times with a hot ammonium chloride solution, after being cooled, the solution is diluted to scales for volume setting, two parts of equal solutions are taken respectively and put in two flasks, triethanolamine, water and a small amount of hydroxylamine hydrochloride are added to one part, the pH value is adjusted to be 12 after a potassium hydroxide solution is added, a proper amount of calcein is added, and titration is conducted with an EDTA standard solution till an end point that fluorescent green disappears and the amount of calcium is obtained; triethanolamine, water and a small amount of hydroxylamine hydrochloride are added to the other part, the pH value is adjusted to be 10 after an ammonia-ammonium chloride buffer solution is added, eriochrome black T serves as an indicator, and titration is conducted with the EDTA standard solution till an end point of pure blue and the resultant amount of calcium and magnesium is obtained.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Nanometer powder of titanium oxide coated by zinc oxide and preparation method thereof

The invention discloses a nanometer powder of titanium oxide coated by zinc oxide and a preparation method thereof, belonging to the technical field of the functional material. The nanometer powder contains a zinc oxide coating layer and titanium oxide nanoparticles and also contains a Ti-O-Zn compound phase transition layer, wherein the titanium oxide nanoparticles contain nitrogen with the molar percentage of 0.1-50%; the molar ratio of zinc oxide in the coating layer to titanium oxide in nanoparticles is 0.05-0.3:1. The preparation method comprises the following steps: using tetrabutyl titanate as titanium source and urea as nitrogen source to prepare titanium oxide nanoparticles containing nitrogen through the sol-gel method, then using soluble zinc salt as raw material and ammonia-ammonium mixed solution as precipitating agent to prepare zinc oxide through the co-precipitation method, and coating the titanium oxide nanoparticles containing nitrogen. The nanometer powder of the invention overcomes the defects of common titanium oxide nanometer powder, namely poor photocatalytic capability and heat resistance, and is a kind of compound nanometer powder which has good excellent performance and reasonable cost/performance ratio and is advanced and practical.
Owner:SHIJIAZHUANG TIEDAO UNIV

Method for testing constant cadmium and zinc in cadmium zinc telluride crystal

ActiveCN104914093ASolve the problem that titration cannot be carried outSuppress interferenceMaterial analysis by observing effect on chemical indicatorTe elementCadmium Cation
The invention provides a method for testing constant cadmium and zinc in cadmium zinc telluride crystal. The method provided by the invention comprises the following steps: taking a solution obtained by dissolving a proper amount of a sample solution of the cadmium zinc telluride crystal to be tested or a proper amount of a solid sample of the cadmium zinc telluride crystal to be tested, adjusting pH value of the solution to neutral by adding ammoniacal liquor (1+1) to and adjusting pH value of the solution to 10 by adding a proper amount of an ammonia-ammonium chloride buffer solution and remaining stable; adding a proper amount of a surfactant into the solution, adding a proper amount of an eriochrome black T indicator, and carrying out complexometric titration by the use of a complexing agent EDTA to turn the solution from purple to pure blue so as to obtain total amount nCd+Zn of cadmium and zinc, wherein molar concentration of the complexing agent EDTA is C1 and the use amount is V1; adding a proper amount of DDTC sodium salt to fully dissolve, selectively precipitate cadmium by DDTC sodium salt and releasing the same amount of EDTA, carrying out titration on EDTA by the use of a magnesium nitrate solution until the solution turns light red so as to obtain cadmium with the amount of nCd and mass of mCd, wherein molar concentration of the magnesium nitrate solution is C2 and use amount is V2; and obtaining zinc with amount of nZn and mass of mZn according to a difference method.
Owner:清远先导材料有限公司

Method for continuous determination of content of Ca, Mg and Ba in Si-Ca-Ba-Mg alloy

The invention discloses a method for continuous determination of the content of Ca, Mg and Ba in Si-Ca-Ba-Mg alloy. The method includes the steps that a Si-Ca-Ba-Mg alloy sample is added into one beaker, no sample is added in the other breaker which serves as blank control, nitric acid-hydrofluoric acid mixed solutions are added respectively for dissolving the sample, and sulfuric acid is added till smoking happens; afterwards, hydrochloric acid is added for dissolving slats, water and hydroxylamine hydrochloride are added and heated to be boiled till the solutions are changed to be colorless from being yellow, the solutions are filtered into a large volumetric flask, sediments are washed by dilute sulphuric acid and water, and the sediments together with filter paper are placed into a porcelain crucible; ashing, firing and weighing are carried out, and accordingly the content of the Ba is obtained; two groups of quantitative solutions are selected to be put in beakers from the constant volume solution and the blank solution, one group is sequentially added with triethanolamine, water, hydroxylamine hydrochloride and a potassium hydroxide solution, several drips of magnesium sulfate are added, a proper quantity of calcein indicator is added, and EDTA is used for titration till fluorescent green disappears, and accordingly the content of the Ca is obtained; the other group is sequentially added with triethanolamine, water, hydroxylamine hydrochloride and an ammonia-ammonium chloride buffered solution, an eriochrome black T indicator is added, EDTA is used for titration till fuchsia is turned into blue, and accordingly the content of the Mg is obtained.
Owner:INNER MONGOLIA BAOTOU STEEL UNION

Electroplating method for assembling nano-micrometre array material in metal aluminium stencil

The invention relates to an electroplating method for nano-micro array materials assembled in a metallic aluminum template, which is characterized in that: the metallic aluminum template is impregnated into an electroplate liquid, and plating is implemented under certain conditions. Before plating, the metallic aluminum template is not needed to be coated with a layer of conductive metallic film by utilization of the sputtering or evaporation method. During the plating process, the metallic aluminum template is taken as a cathode, and a metal plate to be plated, graphite carbon or metallic platinum is taken as an anode; the pH value of the electroplate liquid is between 4.0 and 12.0; the metallic ion sources can be nickel salt, cupric salt, zinc salt, noble metals and so on; the macromolecular monomers can be aniline, pyrrole, trimethyl thiophene and so on; the pH regulator can use a hydrochloric acid, a sulfuric acid, sodium hydroxide, potassium hydroxide, ammonia and so on; the pH buffer can use systems such as a boric acid, acetic acid-sodium acetate, potassium hydrogen phosphate-potassium dihydrogen phosphate, ammonia-ammonium salt and so on; the plating temperature is a room temperature of 60 DEG C below zero; and the current density is between 10.0 and 2,000.0 amperes per square meter. After plating is over, the metallic aluminum template is washed by water to remove the residual electroplate liquid on the surface, and then 4.0 to 15.0 percent NaOH solution is used for dissolving the metallic aluminum template; metals or high polymer films obtained are washed by water to remove residual lye on the surface; and then the tubular or cylindrical small-size array materials with different slenderness ratios and different tube wall thicknesses can be obtained after drying. By adoption of the electroplating method to prepare the metallic nano-micro array materials, the technique is simple and the cost is low.
Owner:SICHUAN UNIV
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