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39results about How to "Play a role in dissolution" patented technology

Authigenic acid system and its application

The invention relates to an authigenic acid system and its application. The authigenic acid contains ZX-339 and ZX-368 components, the mole ratio of n(ZX-339) to n(ZX-368) is 5:8. Under a reaction temperature of 70DEG C-100DEG C, 19%-21% hydrochloric acid can be produced. The ZX-339 is any one of allyl chloride, benzoyl chloride, and a chlorinated organic ammonium salt. The ZX-368 is any one of polydimethylaminobenzaldehyde and polyhexa aldehyde. A clean acid fracturing fluid system is employed to carry the authigenic acid system to deep stratum. During application, the authigenic acid is compounded from, by weight: 2% of ZX-19, 15-20% of hydrochloric acid, 2% of ZX-09, 1% of ZX-10, (12-18)% of ZX-339, (10-16)% of ZX-368, and the balance water. The corrosion ability of the authigenic acid is equivalent to 70%-74% of that of isoconcentration hydrochloric acid.
Owner:PETROCHINA CO LTD

White tea processing technology

The invention discloses a white tea processing technology. The technology comprises the operations of pickling a raw material, preprocessing, deactivating enzymes, tidying tea strips, spreading, getting moisture, rebaking and the like, wherein the preprocessing operation is carried out through spraying fresh leaves with glucan endonuclease having a mass concentration of 0.3-0.4% and 0.2-0.3% pectase, has a certain effective promotion effect on the subsequent operations, shortens the whole production period by near 30%, improves the production efficiency, and deserves the large scale popularization.
Owner:句容市边城茶场

Cefprozil compound, and dispersible tablets, dry suspension and preparation method thereof

The invention relates to the field of medicine, and in particular relates to a cefprozil compound, and dispersible tablets, a dry suspension and a preparation method thereof. The cefprozil compound is a crystal, and an X-ray powder diffraction diagram obtained by Cu-K alpha ray measurement is shown in figure 1. Through experimental detection, the cefprozil dispersible tablets and the dry suspension have the advantages of superior stability and quite good smell and taste, and are quite suitable for clinical application.
Owner:金鸿药业股份有限公司

Grinding roller shock absorption grinding wheel adjustable in hardness

The invention discloses a grinding roller shock absorption grinding wheel adjustable in hardness. Composition of the grinding roller shock absorption grinding wheel comprises white fused alumina, single-crystal corundum, black silicon carbide, phenolic resin liquid, phenolic powder, epoxy resin, sodium salt, ice crystal powder, and pyrite ore powder. The grinding roller shock absorption grinding wheel utilizes dissolution action of water in cooling liquid on the sodium salt in the composition of the sand wheel, and controls dissolution speed of the sodium salt by controlling cooling liquid flow. The strength of resin binder bonding grinding material is gradually reduced in the process that the sodium salt is gradually dissolved by water. The purpose of reducing the hardness of the sand wheel in a controllable mode can be achieved in the process. The grinding roller shock absorption grinding wheel is adjustable in hardness and strong in universality, greatly reduces the number of grinding roller grinding machines configured by a user, simultaneously greatly reduces labor amount and auxiliary work hours for frequent replacing of grinding wheels, and is favorable to improving production efficiency of grinding and cutting rollers.
Owner:泰州苏蒙砂轮有限公司

Long-acting compound terramycin injection for animals

The invention discloses a long-acting compound terramycin injection for animals. Each 1000 ml of long-acting compound terramycin injection contains 190-250g of occrycetin, 400-450g of alpha-pyrrolidone, 300-350ml of N,N-dimethyl formamide, 35-50g of nicotinamide, 35-50g of sodium salicylate, 100-130g of magnesium chloride, 100-130g of hydroxymethanesulfinic acid sodium hydrosulfite and 4-7g of disodium edetate dehydrate. A pH conditioning agent adjusts the pH value to 8.0-9.0; injecting water is used to perform calibration until the constant volume is 1000 ml; the pH conditioning agent is ethanol amine. According to the long-acting compound terramycin injection for animals, the chelating temperature is low and within 30-60 DEG C, products is high in chelating degree and steady in quality, and can still keep the standard amber within 2-year period of validity; an extended agent is added, so that drug function is good and the acting time is long; the drug function keeps for 72 hours after the drug in a normal dosage is administrated, so that the inconvenience of repeated drug administration is solved, and thus the long-acting function is played.
Owner:CHONGQING ZONGYI PHARMA

Oxcarbazepine sustained release tablet and preparation method thereof

The invention relates to an oxcarbazepine sustained release tablet and a preparation method thereof. According to the method adopted by the invention, raw materials are specially treated together with an auxiliary material first to prepare oxcarbazepine composition, and the particle size of the oxcarbazepine composition is strictly controlled. KG-802 is added into an extra auxiliary material. According to the oxcarbazepine sustained release tablet prepared with the method provided by the invention, the use of a large amount of a cosolvent namely sodium lauryl sulfate in an original developed preparation is avoided, the toxicity of a preparation finished product to a human body after taking is reduced, and the pollution to the environment in a preparation process is reduced; and compared with a reference product on sale, release curves in release media with different pH values can keep similar, the bioequivalence of an in-vitro test is ensured, and the release curves of the release media with different pH values are more similar to one another in comparison with the preparation on sale. The oxcarbazepine sustained release tablet provided by the invention is prepared by adopting a conventional granulation and tabletting process, the process is simple, and the oxcarbazepine sustained release tablet is suitable for large-scale production.
Owner:浙江四维医药科技有限公司

Liquid fuel additive

The invention belongs to the technical field of fuel additives and particularly relates to a liquid fuel additive. The additive is prepared from, by weight, 10-25 parts of cleaning agent, 5-15 parts of propanediol butyl ether, 3-11 parts of methylsilicone oil, 2-9 parts of n-hexane, 2-8 parts of dioctyl phthalate, 2-7 parts of methyl cyclopentadiene, 1-8 parts of diethylene glycol dinitrate, 1-7 parts of butyl acetate, 1-5 parts of benzyl alcohol and 1-6 parts of dispersion agent. The liquid fuel additive effectively improves the power and the cetane number of fuel, improves diesel storage stability, improves combustion performance and combustion efficiency of fuel, and achieves energy conservation and emission reduction.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Preparation method of colored glass wall brick or glass tile

The invention relates to a preparation method of colored glass wall bricks or glass tiles, comprising the following steps: (1) preparing raw materials, wherein, the raw materials comprise 74-90 wt% of waste glass, 4-6 wt% of flousper powder, 4-15 wt% of feldspar powder, and 2-6 wt% of soda ash; (2) mixing the ingredients in the step (1), then adding a coloring agent in an amount of 0.1-0.4 wt% based on the total weight of the raw materials, and sintering the mixture into a glass liquid at a temperature of 1050-1100 DEG C; (3) putting the glass liquid obtained in the step (2) in a die for pressing into shape; and (4) annealing the pressed product at a temperature of 400-600 DEG C, and cooling. The preparation method has the advantages of simple process, low cost, and low energy consumption, and the prepared product has abundant color and wide application.
Owner:田长生

Automobile fuel additive

InactiveCN106221831ACleaning and removal of carbon depositsPrevent Storage StratificationLiquid carbonaceous fuelsFuel additivesEtherCorrosion
The invention relates to the technical field of fuel additives, in particular to an automobile fuel additive. The automobile fuel additive is made of, by weight, 8-24 parts of pentaerythritol, 5-21 parts of polyether amine, 2-10 parts of methyl benzoate, 1-5 parts of 1-vinyl imidazole, 1-7 parts of isopropyl acetate, 2-10 parts of ethylene glycol monobutyl ether, 1-5 parts of ethylene carbonate, 4-14 parts of 2-ethyl hexyl nitrate and 1-9 parts of isooctane. The automobile fuel additive has the advantages that excellent cleaning, purifying and corrosion preventing effects can be realized by the automobile fuel additive, gasoline can be effectively saved, and exhaust emission can be reduced.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Pretreatment method for freezing and fresh-keeping of meat products

The invention relates to a pretreatment method for freezing and fresh-keeping of meat products. The method comprises the steps of low-voltage electric field treatment, non-freezing liquid dipping and freezing and composite coating agent coating protection treatment. The freezing preservation pretreatment method disclosed by the invention is simple to operate and easy to realize; by using a low-voltage electric field, the meat state can be remarkably improved before coating, and the combination efficiency of the composite coating agent is improved; the anti-freezing agent and the antioxidant are used, so that ice crystal growth can be effectively prevented in the meat freezing storage process, and protein condensation and denaturation are effectively prevented; the coating agent is used for forming a coating on the surface of the meat, so that the meat is effectively prevented from being dried, and the freezing quality of the meat is guaranteed. The meat product treated by the composite meat product coating agent treated by utilizing an oligosaccharide low-temperature protection mechanism and a coating protection effect is not easy to dry and brown in a freezing storage process, and the frozen product is good in quality and good in unfreezing quality.
Owner:ZHEJIANG UNIV OF TECH

Automobile fuel additive

The invention discloses an automobile fuel additive, and belongs to the field of automobile fuels. The automobile fuel additive is made from the following materials of: 5-13 parts of tertiary butanol, 8-18 parts of glycerine, 3-10 parts of isobutyl alcohol, 3-9 parts of diethylene glycol aliphatic ester, 1-7 parts of 2,4-di-tert-butylphenol, 2-10 parts of amide, 1-5 parts of 2,6-di-tert-4-methylphenol, 4-10 parts of ferrocene and 1-9 parts of lubricating agent. The automobile fuel additive provided by the invention has the effect on keeping clean, resisting corrosion, removing carbon deposition and assisting dissolution, and is significant in fuel saving effect.
Owner:东奇能源技术有限公司

Method for stripping purple phosphorus nanosheet by laser

The invention discloses a method for stripping purple phosphorus nanosheets by laser, and the method adopts a laser method to strip block purple phosphorus, and can simply, quickly and massively prepare few layers of purple phosphorus. Meanwhile, the surface of the block material is bombarded by high-energy laser, and the stripped few-layer purple phosphorus has more active sites; compared with a traditional mechanical method for stripping the purple phosphorus, the yield of stripping the purple phosphorus through the laser is large, and time and labor are saved. Compared with a liquid phase method for stripping the purple phosphorus, the purple phosphorus stripped by the laser is high in quality and small in size. The method is safe in process and can be completed in a normal-temperature and normal-pressure environment.
Owner:SHAANXI UNIV OF SCI & TECH

Deodorant and preparation method thereof

InactiveCN112138528AEffective decomposition and removalInhibitionDispersed particle separationDeodrantsOrganic acidActive agent
The invention discloses a deodorant and a preparation method thereof. The deodorant is prepared from, by mass, 81.2-93.2% of water, 0.1-10% of organic acid salt of zinc, 1% of plant extract, 5-6% of organic solvent, 0.5-1% of surfactant, 0.1-0.4% of stabilizer and 0.1-0.4% of preservative, wherein the organic acid salt of zinc and the plant extract in the components are used for deodorization, andcan effectively decompose and remove ozone, ammonia, hydrogen sulfide, formaldehyde and other odors, and the plant extract plays a role in inhibiting urease, so that the generation of ammonia is fundamentally inhibited.
Owner:杭州纳源环境科技有限公司

Environment-friendly and energy-saving diesel alcohol-based biofuel additive

The invention relates to an environment-friendly and energy-saving diesel oil alcohol-based biofuel additive. Theenvironment-friendly and energy-saving diesel oil alcohol-based biofuel additive is prepared from raw materials in percentage as follows: 1%-3% of n-butyl alcohol, 2%-4% of n-octyl alcohol, 5%-15% of multi-carbon alcohol, 1%-3% of isopropanol, 2%-4% of tertiary butanol, 15%-25% of fatty acid methyl ester, 4%-6% of a composite cetane number improver, 5%-15% of a composite universal cosolvent and 15%-25% of a composite biological aid. The composite cetane number improver is composed of isoamyl nitrate and isooctyl nitrate in a ratio of 2: 3, the diesel oil alcohol-based biofuel additive can improve the cold start characteristic and acceleration performance of gasoline through mixing of various raw materials, is beneficial to combustion supporting and sufficient combustion of diesel oil, and can reduce the oil consumption of the diesel oil. And the content of harmful substances in exhausted tail gas is reduced, the environment is further protected, and by adding fatty acid methyl ester, a biological hairy spore bacterium active agent and other related biofuels, more energy is saved, and the environment is better protected.
Owner:安徽醇生新能源科技有限公司

Low-cost coal dust suppressant and preparation method thereof

The invention discloses a low-cost coal dust suppressant and a preparation method thereof. The low-cost coal dust suppressant comprises sodium carboxymethyl cellulose, sodium tetraborate, sodium sulfate, a corrosion inhibitor, polyacrylamide, a surfactant and water. The preparation method of the coal dust suppressant comprises the following steps: sequentially adding the sodium carboxymethyl cellulose, the surfactant, the corrosion inhibitor, the polyacrylamide, the sodium sulfate and the sodium tetraborate, and fully conducting stirring for 30 minutes to obtain powder; and adding the powder into water while stirring, and continuously conducting stirring for 20-30 minutes after the powder is completely added. According to the low-cost coal dust suppressant and the preparation method thereof provided by the invention, sodium tetraborate and sodium sulfate are added, so that the use of sodium carboxymethyl cellulose is reduced to a great extent, and the preparation cost of the dust suppressant is reduced.
Owner:宁夏北极星化工有限公司 +1

Automobile fuel combustion enhancing additive

The invention relates to the technical field of fuel additives, in particular to an automobile fuel combustion enhancing additive. The additive is prepared from, by weight, 8-24 parts of 3-hydroxybenzoic acid, 5-21 parts of ethylene carbonate, 2-10 parts of 3-methylphenol, 1-5 parts of alcohol polyoxyethyleneether carboxylate, 1-7 parts of sodium alkyl benzene sulfonate, 2-10 parts of ehtylene glycol monobutyl ether, 1-5 parts of trialkyl phosphate, 4-14 parts of 1,5-binitro pentane and 1-9 parts of triphenylmethane. The additive has a remarkable smoke abatement and discharge function, the emission of harmful substances is reduced, gasoline is saved, and the combustion performance of automobile fuel is effectively improved.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

White tea suitable for drinking of people with dampness-heat constitution and manufacturing method thereof

The invention discloses white tea suitable for drinking of people with dampness-heat constitution. The white tea is prepared from the following raw materials: tea fresh leaves, cucumbers, celeries, semen phaseoli, lotus root slices, radix puerariae, poria cocos, capillary wormwood herbs, Chinese wolfberry fruits, and mulberries. Each manufacturing technology of the white tea is subjected to a reasonable match and a strict control, the manufacturing cycle is greatly shortens, and the working efficiency is improved, so that the prepared white tea is excellent in color, fragrance, taste and shape, high in active ingredient extractum, and suitable for people with dampness-heat to drink.
Owner:ANHUI SHANGHANGSHAN TEA

Diesel oil efficiency-increase and emission-reduction additive

The invention relates to the technical field of fuel additives, and in particular, relates to a diesel oil efficiency-increase and emission-reduction additive prepared from the following raw materials in parts by weight: 8-24 parts of 1-hexyl-3-methylimidazolium bromide, 5-21 parts of dimethylformamide, 2-10 parts of methyl benzoate, 1-5 parts of succimide, 1-7 parts of methyl silicone oil, 2-10 parts of 2-diethylaminopyridine, 1-5 parts of 3-methylphenol, 4-14 parts of methyl nitrate, and 1-9 parts of ethyl nitrate. The diesel oil efficiency-increase and emission-reduction additive has the advantages of good cleaning purification and anti-corrosion effects, effectively saves diesel oil, reduces exhaust gas emission, and significantly reduces emissions of black smoke and particulate matters.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Multifunctional diesel oil

The invention belongs to the technical field of fuels, and particularly relates to multifunctional diesel oil, which is prepared from the following raw materials in parts by weight: 45 to 65 parts of diesel oil, 10 to 20 parts of methyl alcohol, and 0.1 to 0.6 part of diesel oil additive, wherein the diesel oil additive comprises the following raw materials in parts by weight: 8 to 20 parts of nonyl phenol polyoxyethylene ether, 6 to 16 parts of furfural, 5 to 13 parts of isopropanol, 5 to 9 parts of tertiary amyl methyl ether, 1 to 6 parts of stearic acid monoglyceride, 1 to 5 parts of dibutyl phosphite, 1 to 5 parts of 4-methoxy o-phenylenediamine. The multifunctional diesel oil provided by the invention has favorable storage stability, and no sediment for a long time without layering, a cetane number is improved, the burning is sufficient, the tail gas emission is remarkably reduced without black smoke emission, and the cost is reduced.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Automotive fuel with low exhaust emissions

The invention belongs to the technical field of fuel, and particularly relates to an automotive fuel with low exhaust emissions. The automotive fuel with low exhaust emissions comprises the following raw materials: 75-95 parts by weight of gasoline, 15-35 parts by weight of methyl alcohol, 0.01-0.06 part by weight of methyl tertiary-butyl ether, 0.01-0.06 part by weight of N,N-diethyl-1,4-phenylenediamine, 0.01-0.07 part by weight of bisphenol A, 0.02-0.08 part by weight of clearing agent and 0.01-0.05 part by weight of antiknock agent. The automotive fuel with low exhaust emissions has the advantages of burning sufficiently, saving energy and reducing emission, and significantly reducing exhaust emissions.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Method for measuring ICP atomic emission spectroscopy of silver in aluminum alloy

The invention provides a method for measuring ICP atomic emission spectroscopy of silver in an aluminum alloy. The method comprises the following steps of A) dissolving the aluminum alloy with nitric acid, adding a copper solution to help solubilization, and obtaining a sample, wherein the dissolution temperature is 100-120 DEG C, and the mass ratio of the copper ion in the copper solution to the aluminum alloy is 1:(20-30); and B) measuring the sample by using an ICP atomic emission spectrometer. The aluminum alloy sample is dissolved with the nitric acid, and moreover, the copper ion is added to help solubilization, and the copper ion and the aluminum ion form a primary element effect, so that dissolving the aluminum alloy with the nitric acid is promoted, and the effect of helping solubilization is exerted. Besides, dissolving at the specific temperature also plays a role in helping solubilization. No hydrochloric acid needs to be added, no silver chloride precipitate is produced, and dissolving the precipitate with a large quantity of ammonia chloride is not needed either, so that the problem of shutdown of an instrument caused by excessive salts is not caused, the copper ion does not interfere with the measurement either, and the result is stable and reliable.
Owner:SOUTHWEST ALUMINUM GRP

A kind of automobile fuel additive

The invention discloses an automobile fuel additive, and belongs to the field of automobile fuels. The automobile fuel additive is made from the following materials of: 5-13 parts of tertiary butanol, 8-18 parts of glycerine, 3-10 parts of isobutyl alcohol, 3-9 parts of diethylene glycol aliphatic ester, 1-7 parts of 2,4-di-tert-butylphenol, 2-10 parts of amide, 1-5 parts of 2,6-di-tert-4-methylphenol, 4-10 parts of ferrocene and 1-9 parts of lubricating agent. The automobile fuel additive provided by the invention has the effect on keeping clean, resisting corrosion, removing carbon deposition and assisting dissolution, and is significant in fuel saving effect.
Owner:东奇能源技术有限公司

Preparation method of long-acting veterinary compound oxytetracycline injection

The invention discloses a preparation method of a long-acting veterinary compound oxytetracycline injection. The preparation method comprises the following steps: 1) taking a proper amount of water for injection, adding magnesium chloride and eisodium edentate (EDTA-2Na), stirring for dissolving, adding nicotinamide and sodium salicylate, and stirring for standby use, namely obtaining a liquid 1; 2) taking a proper amount of water for injection, and dissolving sodium formaldehyde sulfoxylate for use, namely obtaining a liquid 2; 3) adding a small amount of alpha-pyrrolidone and N,N-dimethyl formamide into the liquid 1 obtained in the step 1, stirring, slowing adding a small amount of oxytetracycline hydrochloride, and stirring for dissolving; 4) adding the liquid 2 obtained in the step 2 into liquid obtained in the step 3, and uniformly stirring; 5) regulating a pH value by using a pH regulator; 6) fixing the volume, filtering in a sterile environment, and filling and sealing. The long-acting veterinary compound oxytetracycline injection is stable in quality, good in medicinal effect and long in acting time.
Owner:CHONGQING ZONGYI PHARMA

White tea processing technology

The invention discloses a white tea processing technology. The technology comprises the operations of pickling a raw material, preprocessing, deactivating enzymes, tidying tea strips, spreading, getting moisture, rebaking and the like, wherein the preprocessing operation is carried out through spraying fresh leaves with glucan endonuclease having a mass concentration of 0.3-0.4% and 0.2-0.3% pectase, has a certain effective promotion effect on the subsequent operations, shortens the whole production period by near 30%, improves the production efficiency, and deserves the large scale popularization.
Owner:句容市边城茶场

An energy-saving fuel oil additive

The invention belongs to the technical field of fuel oil additives, and particularly relates to an energy-saving fuel oil additive. The additive is prepared from, by weight, 10-25 parts of a cleanup agent, 5-15 parts of 2-hexanol, 3-11 parts of di-n-butyl phosphite, 2-9 parts of mono-alkyl ester of fatty acids, 2-8 parts of dicapryl phthalate, 2-7 parts of 3-hydroxy benzoic acid, 1-8 parts of hydroxypropyl methyl cellulose, 1-7 parts of tritolyl phosphate, 1-5 parts of methyl tert-butyl ether and 1-6 parts of 2,4-dimethylphenol. The additive allows fuel oil to be fully combusted, increases the combustion efficiency, saves the fuel oil, reduces the cost, reduces emission and protects the environment.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

A textile intelligent production separation device based on the Internet of Things

The invention discloses an intelligent textile production separation device based on the Internet of Things, which includes a base and a textile production separation control system. Two groups of left panels are fixed on the left side of the base, and two groups of In the middle side board, two groups of right side boards are fixed on the right side of the base, the middle bearings of the two groups of left boards are connected with a rotating drum, and the two groups of left boards and the two groups of middle side boards are fixed There are crossbeams, two sets of pressure rollers are connected between the two sets of crossbeams, the middle of the two sets of middle side plates is fixedly connected with a fixed plate, the left side of the fixed plate is fixed with a cutting knife, and the left side of the fixed plate is fixed. The bearings on both sides are connected with a pivot shaft, and the upper and lower rolling rollers are respectively connected to the bearings between the two sets of right side plates, and one side of the upper and lower rolling rollers is fixedly connected with a motor. In the present invention, It has the characteristics of dissolving cloth with high adhesion to achieve the effect of easy separation and improving separation efficiency.
Owner:江苏国沃纺织品有限公司

Fuel with reduced particulate matter emission

The invention belongs to the technical field of fuel, and particularly relates to fuel with reduced particulate matter emission. The fuel is made of, by weight, 45-65 parts of diesel, 10-20 parts of methanol and 0.1-0.6 part of diesel additives. The diesel additives comprise, by weight, 8-20 parts of tricresyl phosphate, 6-16 parts of ethylene carbonate, 5-13 parts of polyisobutylene succinimide, 5-9 parts of triethylene tetramine, 1-6 parts of alkylphenol ethoxylates, 1-5 parts of cyclohexylamine and 1-5 parts of 2-2-ethylhexyl phosphonic acid mono-2-ethylhexyl acrylate. The fuel with the reduced particulate matter emission has the advantages that the fuel can be sufficiently combusted and is high in combustion efficiency, the particulate matter emission can be obviously reduced, harmful gas emission also can be obviously reduced, accordingly, energy can be saved, and environments can be protected.
Owner:GUANGXI DONGQI ENERGY TECH CO LTD

Method for recovering heavy metal from copper-containing sludge

The invention provides a method for recovering heavy metal from copper-containing sludge. The method comprises the following steps that rhizobium japonicum, pseudomonas onions and lactobacillus are mixed to prepare mixed bacterial powder, the copper-containing sludge is inoculated with the mixed bacterial powder, fermentation is conducted, and a fermentation product is obtained; and then a first part of concentrated hydrochloric acid, a phosphoric acid aqueous solution and a second part of concentrated hydrochloric acid are sequentially added into the fermentation product, stirring is conducted, a reaction is carried out, centrifuging is conducted, and then a supernatant and sediment I are obtained; the supernatant is replaced with excessive iron wires to obtain sediment II; and the sediment I is dissolved with concentrated hydrochloric acid for a reaction to obtain sediment III, and the sediment II and the sediment III are combined to obtain sponge copper. Heavy metal, especially copper, in the copper-containing sludge is recovered, and efficient resource utilization of the copper-containing sludge is achieved.
Owner:长沙如洋环保科技有限公司

Electrochemical polishing solution suitable for 3D printing of titanium alloy

The invention discloses an electrochemical polishing solution suitable for 3D printing of titanium alloy, and belongs to the polishing technology. The electrolyte is formed by mixing potassium chloride, perchloric acid, citric acid, ethylene glycol, deionized water and an additive, and comprises the following components of, 40%-120 g / L of sodium chloride, 1%-10% of perchloric acid, 25-80 g / L of citric acid, 25%-40% of ethylene glycol, 2-10 g of an additive and the balance deionized water. The electrochemical polishing solution is mild in formula component, environmentally friendly, economical,simple, stable in performance, capable of being recycled under the condition that mother liquor is supplemented, high in cost performance, small in harm to the human body, environmentally friendly, low in corrosion to workpiece equipment, free of extreme temperature or voltage and current and the like and suitable for industrial production.
Owner:BEIJING UNIV OF TECH
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