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47 results about "Cyclohexanediaminetetraacetic acid" patented technology
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Polishing compound for copper wirings and method for polishing surface of semiconductor integrated circuit
InactiveUS20080064211A1Excellently flat surface stateLittle dishing and erosionSemiconductor/solid-state device manufacturingPolishing compositions with abrasivesOXALIC ACID DIHYDRATECopper-wiring
To provide a technique for realizing high-precision surface planarization when copper is used as a wiring metal. A polishing compound is used which comprises water; a peroxide oxidizer; a surface protective agent for copper; at least one first chelating agent selected from the group consisting of tartaric acid, malonic acid, malic acid, citric acid, maleic acid, oxalic acid and fumaric acid; and at least one second chelating agent selected from the group consisting of triethylenetetramine, ethylenediaminediacetic acid, ethylenediaminetetraacetic acid, tetraethylenepentamine, glycol-ether-diaminetetraacetic acid, trans-1,2-cyclohexanediaminetetraacetic acid, o-phenanthroline, and derivatives thereof.
Owner:ASAHI GLASS CO LTD +1
Cyanide-free alkaline copper electroplating composition and preparation method thereof
ActiveCN107604393ANo pollution in the processMeet the requirements of cleaner productionAcetic acidPotassium nitrate
The invention relates to the field of electroplating, in particular to a cyanide-free alkaline copper electroplating composition and a preparation method thereof. According to the cyanide-free alkaline copper electroplating composition, preparation raw materials of 1 L of the cyanide-free alkaline copper electroplating composition comprise 15-17 g of bivalent copper ions, 185-195 g of citric acid,50-60 g of seignette salt, 5-6.5 g of potassium nitrate, 0.5-1 g of 1, 2-cyclohexylenediamine tetraacetic acid, 0.2-0.3 g of a wetting agent, 1.2-1.6 g of a brightener, 0.1-0.15 g of a leveling agentand 1 L of deionized water.
Owner:广州睿邦新材料科技有限公司
Method for removing hexavalent chromium in wastewater by using cyclohexane diamine-tetracetic acid modified magnetic graphene oxide
InactiveCN104724787AMany adsorption sitesLarge adsorption capacityOther chemical processesWater/sewage treatment by sorptionAcetic acidReaction temperature
The invention discloses a method for removing hexavalent chromium in wastewater by using cyclohexane diamine-tetracetic acid modified magnetic graphene oxide. The method comprises the following steps: getting a certain amount of hexavalent chromium wastewater, adjusting the pH value to 1.0-10 (preferably 2.0-6.0), adding a certain amount of cyclohexane diamine-tetracetic acid modified magnetic graphene oxide into the wastewater, wherein the dry weight of the carboxylated magnetic graphene oxide in per liter of the wastewater is 0.02-3g, reacting for 0-48h (preferably 1-24h) in a constant temperature oscillator at the rotating speed of 100-200 rpm, controlling the reaction temperature to 10-50 DEG C (15-45 DEG C), and separating the cyclohexane diamine-tetracetic acid modified magnetic graphene oxide from the solution after finishing reaction to finish the removal of the hexavalent chromium in the wastewater. The method provided by the invention has the advantages of low cost, convenience in operation, high processing efficiency and easiness in separation and recycling.
Owner:HUNAN UNIV
Method for determining content of fluorine in mold flux for continuous casting
InactiveCN108344789APrecise control of pHStrong ability to mask interfering ionsMaterial analysis by electric/magnetic meansElectrode potentialHigh concentration
The objective of the invention is to provide a method for determining the content of fluorine in mold flux for continuous casting by using a fluoride ion selective electrode. The method comprises thefollowing concrete steps: (1) drawing a standard fluorine curve: with cyclohexanediaminetetraacetic acid-dipotassium phosphate-potassium dihydrogen phosphate as a total ion concentration buffer solution (with a pH value of 5.8), separately determining the potential values of the fluorine ion selective electrode in solutions ranked according to a sequence from low concentration to high concentration at a temperature of 30 DEG C with a saturated calomel electrode as a reference electrode, and drawing a figure E(mv)-lg(cF<->) (mg / l) of the potential values and the logarithmic values of fluorinions so as to obtain the fluorine standard curve; (2) in a muffle furnace, subjecting a sample of the mold flux for continuous casting to decomposition in a corundum crucible under the action of a mixedflux of Na2O2 and ZnO; (3) subjecting slag in the crucible to leaching with hot water, filtering and washing, and carrying out fixing to a constant volume; and (4) taking a sample solution, adding thetotal ion concentration buffer solution, carrying out fixing to a constant volume, determining the potential of the electrode in the formed test solution, finding out a corresponding fluorine concentration in the standard curve, and calculating the content of fluorine in the sample of the mold flux for continuous casting.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Cleaning agent for liquid crystal display screen
InactiveCN108559660ALess corrosiveDoes not affect physical propertiesInorganic/elemental detergent compounding agentsOrganic detergent compounding agentsSodium metasilicatePolyvinyl alcohol
The invention discloses a cleaning agent for a liquid crystal display screen, belonging to the technical field of cleaning agents. The cleaning agent comprises the following raw materials by mass: 5-10% of fatty alcohol polyoxyethylene ether, 2-5% of isomeric alcohol polyoxyethylene ether, 0.2-0.5% of a fluorocarbon surfactant, 3-7% of sodium diisooctyl succinate, 2-5% of sodium dodecyl benzene sulfonate, 1-3% of cocamidopropyl betaine, 2-5% of trans-1,2-cyclohexanediaminetetraacetic acid, 1-3%of sodium polyacrylate, 2-4% of sodium metasilicate, 2-5% of hydroxyethylethylenediamine, 1-3% of polyvinyl alcohol, 3-7% of a solubilizer and 0.5-1% of a corrosion inhibitor, with the balance being deionized water. The cleaning agent of the invention has good ability in dissolving of liquid crystalmaterials, oil stains, dust, etc., and liquid crystal materials, oil stains, dust and the like are emulsified and dispersed in the cleaning agent and are thus separated from a to-be-cleaned surface; and the cleaning agent has good cleaning effect, is free of residues on the surface of a liquid crystal cell and low in corrosivity to liquid crystal display screens, and does not affect the physical properties of liquid crystal display screens.
Owner:安徽全兆光学科技有限公司
Preparation method for quick cleaning and plug-removing disincrustant for oil well
InactiveCN110003871AImprove thermal stabilityUse safety and environmental protectionCleaning apparatusDrilling compositionCleansing AgentsScrew pump
The invention discloses a preparation method for a quick cleaning and plug-removing disincrustant for an oil well. The preparation method is characterized by comprising the following steps: (1) preparing an emulsion A by a mixed liquid of water and oleyl alcohol in the presence of a surfactant; preparing a liquid B by the water, water-soluble ammonium polyphosphate, ammonium citrate and 1,2-cyclohexanediaminetetraacetic acid; preparing a liquid C by the water, itaconic acid, ethanediamine, magnesium chloride, butanedial, copper chloride, sucrose fatty acid ester and OP-10. The pH value of thequick cleaning and plug-removing disincrustant prepared by the invention is 6.0 and 7.5; both the cleaning agent and the cleaned waste liquid are neutral; acid mist cannot be generated; a steel equipment structure cannot be corroded, so that corrosion-free safe plug removing and descaling is realized; the plug-removing disincrustant can remove polymeric material scale and asphaltene scale of a rod pumped well and a screw pump well, and can also remove inorganic scale, such as calcium carbonate, magnesium carbonate, calcium sulphate and iron oxide; the plug-removing disincrustant is high in stability, is safe and environment-friendly to use, quick to remove plug, and suitable for popularization.
Owner:UNIV OF JINAN
Reagent composition used for preserving virus sample, and preservation method
PendingCN112626168AAvoid destructionWon't breakMicrobiological testing/measurementSodium acetateBenzoic acid
The invention provides a reagent composition used for preserving the nucleic acid integrity of viruses in body fluid, and application and a method of the reagent composition. The reagent composition comprises urea, lauryl sodium sulfate, trans-1.2-cyclohexanediamine tetraacetic acid, Tris-HCl, propyl p-hydroxybenzoate, diazolidinyl urea, sodium acetate, ethyl alcohol, saccharose, protease K and phenol red. After the above reagent composition and a liquid virus sample are evenly mixed, long-term preservation can be realized under a constant-temperature condition. The reagent composition and the preservation method provided by the invention can damage a virus structure to release the nucleic acid, the reagent composition contains ingredients capable of inhibiting the enzyme activity of the nucleic acid to avoid nucleic acid degradation, meanwhile, a buffering system capable of stably preserving the nucleic acid for a long term is provided, preservation time is long, and an applicable temperature range is wide.
Owner:HANGZHOU KMB BIOTECH
Ceramic cleaning agent and preparation method thereof
InactiveCN103865696AGood decontamination effectNot easily affected by temperatureSurface-active non-soap compounds and soap mixture detergentsActive agentAromatic agent
The invention discloses a ceramic cleaning agent and a preparation method thereof. The ceramic cleaning agent is composed of industrial alcohol, glycol, a cation activator, an amphoteric surfactant, sodium ortho-cyclohexanediaminetetraacetate, citric acid, bromothymol blue, an aromatic and softened deionized water according to a certain weight percentage. The preparation method comprises the following steps of at a normal temperature, adding softened deionized water into a container, then adding industrial alcohol and glycol into the container, carrying out stirring for full mixing, adding other raw materials into the solution, carrying out full stirring until the raw materials are completely dissolved, and putting the solution into a pot, a bottle or a bag. The ceramic cleaning agent has good cleaning effects, can clean old and stubborn stains on the ceramic surface, is not influenced by a temperature easily, has no corrosivity, does not damage surface enamel and ceramic body of ceramic and realizes good ceramic surface brightness after cleaning. Cleaning waste water of the ceramic cleaning agent does not pollute the environment. The ceramic cleaning agent is a novel environmentally-friendly product and has effects of sterilization, disinfection and peculiar smell removal. The preparation method has simple processes and a moderate cost and can be popularized.
Owner:智福春
Efficient dye flocculant as well as preparation method and application thereof
ActiveCN107828064AStructural solutionSolve the defect of poor capture performanceWater contaminantsWater/sewage treatment by flocculation/precipitationSide chainPotassium hydroxide
The invention relates to an efficient dye flocculant as well as a preparation method and an application thereof. The efficient dye flocculant is characterized being prepared from a polymer main chainPHAM (poly(hydroxymethyl acrylamide)), cationic polymeric side chain PDMC-COOH (polymethacryloxyethyltrimethyl ammonium chloride containing carboxyl at the tail end), anionic polymeric side chain precursor PtBMA-COOH (poly(tert-butylmethacrylate) containing carboxyl at the tail end), functional polymeric side chain precursor PNVF-COOH (poly(N-vinylformamide) containing carboxyl at the tail end), DMF (dimethylformamide) solvent, a catalyst, namely, NHS (N-hydroxysuccinimide), EDC.CH3I (1-ethyl-3-(3-dimethylaminopropyl)carbodiimide methiodide), potassium hydroxide and CDTAD (cyclohexanediamine tetraacetic acid dianhydride), and the efficient dye flocculant is used for treating dye wastewater and artistic coating wastewater drained in the dye synthesis or dyeing and finishing process. The efficient dye flocculant has the advantages of being high in trapping capability and settling speed, capable of treating complexing heavy metal ions, trapping dye molecules and complexing heavy metal ions in a few seconds and growing into large settling particles rapidly to achieve the purpose of rapid dye separation, simple to operate, low in treatment cost, high in adaptability and the like.
Owner:山东德静能源科技有限公司
Novel cationic dye flocculant as well as preparation method and application thereof
ActiveCN107698001AStructural solutionSolve the defect of poor capture performanceWater contaminantsWaste water treatment from textile industryIodidePotassium hydroxide
The invention relates to a novel cationic dye flocculant as well as a preparation method and application thereof. The novel cationic dye flocculant is characterized by being prepared from polymer mainchain polyhydroxymethyl acrylamide, anionic polymer side chain precursor polymer terminated carboxyl-containing poly(tert-butyl methacrylate), functional polymer side chain precursor polymer terminated carboxyl-containing poly-N-vinyl amino formamide, dimethyl formamide, a catalyst, i.e., N-hydroxysuccinimide, [3-[(ethylimidocarbonyl)amino]propyl] trimethylammonium iodide, cyclohexanediamine tetraacetic acid dianhydride and potassium hydroxide; the novel cationic dye flocculant is used for treating dye waste water and artistic coating waste water which are discharged in a synthesis process ora dyeing and finishing process of dyes. The novel cationic dye flocculant is high in trapping capability and rapid in settling velocity, is capable of trapping cationic dye molecules and complex heavy metal ions within a few seconds, and can rapidly grow into large sedimentation particles, thus achieving the aim of separating the dyes; effluent is basically colorless; simple and convenient operation, low treatment cost and high adaptability are achieved.
Owner:东营睿港管道工程有限责任公司
Composition useful in metal sulfide scale removal
ActiveUS20210102300A1Avoid it happening againSafe metal sulfide dissolutionPropanoic acidSulfide compound
The present invention discloses a method and a composition for removing metal sulfide scale present on the surface of a metal, said method comprising:providing a liquid composition comprising:a chelating agent and a counterion component selected from the group consisting of: sodium gluconate; gluconic acid; tetrasodium EDTA; EDTA; propylenediaminetetraacetic acid (PDTA); nitrilotriacetic acid (NTA); N-(2-hydroxyethyl) ethylenediaminetriacetic acid (HEDTA); diethylenetriaminepentaacetic acid (DTPA); hydroxyethyliminodiacetic acid (HEIDA); cyclohexylenediaminetetraacetic acid (CDTA); diphenylaminesulfonic acid (DPAS); ethylenediaminedi(o-hydroxyphenylacetic) acid (EDDHA); glucoheptonic acid; gluconic acid; oxalic acid; malonic acid; succinic acid; glutaric acid; adipic acid; pimelic acid; suberic acid; azelaic acid; sebacic acid; phthalic acid; terephthalic acid; aconitic acid; carballylic acid; trimesic acid; isocitric acid; citric acid; L-glutamic acid-N,N-diacetic acid (GLDA); salts thereof; and mixtures thereof; andan aldehyde; andwaterexposing a surface contaminated with said metal sulfide scale to the liquid composition;allowing sufficient time of exposure to remove said metal sulfide scale from the contaminated surface and sequestration of the sulfur ions from solution.
Owner:DORF KETAL CHEM FZE
Ultrafast settlement type composite heavy metal capturing agent, and production method and application thereof
ActiveCN107935152ASolve the difficult technical problem of sedimentation rate controlSettling fastWater contaminantsWaste water treatment from metallurgical processWastewaterPotassium hydroxide
The invention relates to an ultrafast settlement type composite heavy metal capturing agent, and a production method and an application thereof. The ultrafast settlement type composite heavy metal capturing agent is prepared from water-soluble polymethylolacrylamide-grafted-(sodium polyvinylaminocyclohexanediacetate-random-polyvinylaminodithiocarbamate), sodium di-n-butyldithiocarbamate, water andpotassium hydroxide, and the ultrafast settlement type composite heavy metal capturing agent is used to treat heavy metal wastewater discharged in the processes of electroplating, smelting, mining, mineral separation, chemical engineering and mechanical engineering. The capturing agent has a low cost, each basic unit can provide hexacoordination atoms to carry out strong chelating adsorption, andcommonly act together with the sodium di-n-butyldithiocarbamate to adsorb complexation type heavy metal ions, and can be compounded with heavy metals in an ultrafast manner to generate a large aggregation in seconds to achieve rapid settlement, so the capturing agent is convenient to operated, and is conducive to be promoted.
Owner:东营睿港投资服务有限责任公司
Preparation method of high wall-hanging lubricating oil for flour machine
InactiveCN107937096AImprove wall hanging effectImprove the lubrication effectLubricant compositionMass ratioPolyphosphate
The invention discloses a preparation method of high wall-hanging lubricating oil for a flour machine, wherein the preparation method includes the following operation steps: (1) mixing 1,2-cyclohexanediamine-tetracetic acid, tetrabutylammonium fluoride and isopropoxyboronic acid pinacol ester evenly, heating until tetrabutylammonium fluoride is completely molten, and cooling to room temperature,to prepare an additive A for standby application; (2) mixing a polycaprolactam powder and melamine polyphosphate evenly, and carrying out ball milling treatment for 30-40 min, to prepare an additive B; and (3) mixing the additive A, the additive B and edible oil according to the mass ratio of 3:5:(40-45) evenly, to obtain the high wall-hanging lubricating oil for the flour machine. The invention provides the preparation method of the high wall-hanging lubricating oil for the flour machine; the preparation method is simple in operation and low in cost; the prepared lubricating oil is excellentin lubricating effect and excellent in all-hanging performance, and cannot flow in all directions to pollute raw materials during the use process.
Owner:WUHE HUANGHUAI GRAIN & OIL MACHINERY CO LTD
Control method for oxidation prevention of vitamin C tablet
InactiveCN110420189AGood dispersionPrevent oxidationOrganic active ingredientsMetabolism disorderOrganic acidVitamin C
The invention relates to the technical field of vitamin C tablets and particularly provides a control method for oxidation prevention of a vitamin C tablet. A production process of the vitamin C tablet comprises the following steps that S1, vitamin C microcapsules are prepared; S2, 70-85 parts of the vitamin C microcapsules and a certain quantity of auxiliary materials are weighed, and all the rawmaterials are crushed to be sieved by a 60-mesh sieve; S3, all the raw materials are mixed evenly to obtain a mixed material; and S4, the mixed material is subjected to direct pressing forming undera certain tabletting environment. The auxiliary materials include cyclohexanediamine tetraacetic acid, pregelatinized starch, a lactose-starch complex, histidine, lysine and medically acceptable organic acid or inorganic acid. The vitamin C microcapsules are treated and then subjected to direct tabletting treatment, oxidation of a vitamin C in the wet granulation process is avoided, the other auxiliary materials are added to further inhibit oxidation of the vitamin C, and the stability of the vitamin C tablet is improved.
Owner:新乡市常乐制药有限责任公司
Degradable heavy metal capture agent as well as preparation method and application thereof
InactiveCN107837794AEasy to degradeLess prone to secondary pollutionOther chemical processesWater contaminantsSide chainPotassium hydroxide
The invention relates to a degradable heavy metal capture agent as well as a preparation method and application thereof. The degradable heavy metal capture agent is characterized by being prepared from konjac glucomannan, water, an initiator, namely azobis(isobutyramidine) dihydrochloride V-50, N-vinylformamide, cyclohexanediamine tetraacetic dianhydride, potassium hydroxide and carbon disulfide.The degradable heavy metal capture agent can be used for treating heavy metal wastewater discharged during electroplating, smelting, mining, mineral separation, chemical engineering, machinery and thelike. According to the capture agent disclosed by the invention, complexing heavy metal ions can be adsorbed by novel chelating functional groups grafted by a synthetic konjac glucomannan macromolecular framework, each basic unit can provide hexa-coordinate atoms for performing strong chelating adsorption, and large aggregate is further produced in seconds by virtue of a chemical precipitation reaction carried out between dithiocarbamate on a sedimentation-aided side chain grafted by konjac glucomannan and a sedimentation assistant, so as to implement rapid sedimentation.
Owner:SHUNDE POLYTECHNIC
Environmentally-friendly konjac glucomannan-based dye capturing and settling agent, and preparation method and application thereof
ActiveCN107936178ASolve the problem of slow sedimentationSettling fastWater contaminantsWater/sewage treatment by flocculation/precipitationNon toxicityTrapping
The invention relates to an environmentally-friendly konjac glucomannan-based dye capturing and settling agent, and a preparation method and an application thereof. The environmentally-friendly konjacglucomannan-based dye capturing and settling agent is prepared from konjac glucomannan, water, an initiator 2,2'-azobis(2-methylpropionamidine) dihydrochloride V-50, acrylic acid, dimethylaminoethylmethacrylate, N-vinylformamide, 1,2-cyclohexanediaminetetraacetic acid dianhydride, potassium hydroxide and carbon disulfide, and the environmentally-friendly konjac glucomannan-based dye capturing and settling agent is used to treat dye wastewater or art paint wastewater discharged in the dye synthesis process or the dyeing and finishing process. The environmentally-friendly konjac glucomannan-based dye capturing and settling agent has the advantages of strong trapping capability, fast settlement speed, realization of treatment of complexation type heavy metal ions, realization of capturing dye molecules and the complex heavy metal ions in seconds, quickness in growth for becoming large settled particles, achieving of the purpose of rapid separation of dyes and heavy metal ions, non-toxicity, environmental protection, easiness in degradation, no secondary pollution in the use process, easiness in operation, low treatment cost and strong adaptability.
Owner:重庆弘脉天下农业发展有限公司
Method for preparing composite metal surface anti-rusting detergent
Owner:UNIV OF JINAN
Biomass chelation modified heavy metal composite capture agent and its preparation method and application
ActiveCN107936179BNot easy to produce secondary pollutionFix poor capture performanceWater contaminantsWaste water treatment from metallurgical processHexamethylenediamineThio-
The invention relates to a biomass chelate-modified heavy metal composite capturing agent, and a preparation method and an application thereof. The biomass chelate-modified heavy metal composite capturing agent is prepared from konjac glucomannan, water, an initiator 2,2'-azobis[2-methylpropionamidine] dihydrochloride V-50, N-vinylformamide (NVF), 1,2-cyclohexanediaminetetraacetic acid dianhydride, potassium hydroxide, carbon disulfide and sodium di-n-butyldithiocarbamate, and the biomass chelate-modified heavy metal composite capturing agent is used to treat heavy metal wastewater dischargedin the processes of electroplating, smelting, mining, mineral separation, chemical engineering and mechanical engineering. Complexation type heavy metal ions are adsorbed through the common action ofa konjac molecule skeleton-grafted novel chelating function group VACDTANa and the sodium di-n-butyldithiocarbamate, and generate a large aggregation in seconds through the synergistic effects of thekonjac molecule skeleton-grafted sodium dithiocarbamate and sodium di-n-butyldithiocarbamate and a chemical precipitation reaction of a settling aid in order to achieve rapid settlement.
Owner:合肥九州龙腾科技成果转化有限公司
Konjac modified cationic dye flocculant, preparation method and application thereof
InactiveCN107903356ASolve the problem of slow sedimentationSettling fastWater contaminantsWater/sewage treatmentDyeing wastewaterProcessing cost
The invention relates to a konjac modified cationic dye flocculant as well as a preparation method and application thereof, and is characterized in that the konjac modified cationic dye flocculant isprepared by konjac glucomannan, water, an initiator 2,2'-azobis(2-methylpropionamide)dihydrochloride V-50, methacrylic acid, N-vinylformamide, cyclohexanediaminetetraacetic acid dianhydride and sodiumhydroxide, and the konjac modified cationic dye flocculant is used for treating cationic dye wastewater discharged in dye synthesis or dyeing and finishing processes and wastewater discharged in theart coating industry. The flocculant has the advantages of being high in trapping capacity, high in sedimentation speed and capable of treating low-concentration complexing heavy metal ions, so that cationic dye molecules and complex heavy metal ions can be captured within several seconds, and large settling particles can be rapidly grown, so that the purpose of quickly separating cationic dyes and heavy metal ions is achieved, and the flocculant is non-toxic, environment-friendly and easy to degrade, the secondary pollution is not easy to cause in the using process, the operation is simple and convenient, the processing cost is low, the adaptability is high, and the like.
Owner:SHUNDE POLYTECHNIC
Preparation method of neutral cleaning agent for rust removal of metal surfaces
The invention discloses a preparation method of a neutral cleaning agent for rust removal of metal surfaces. The cleaning agent is characterized in that a liquid A is prepared from 52-56% of ethyl alcohol, 42-46% of phosphoric acid and 1-3% of oleic acid-based imidazoline; a liquid B is prepared from 83-87% of water, 1-3.0% of cyclohexanediamine tetraaceticacid, 3-6% of glycine betaine and 8-12% of glucosamine; a liquid C is prepared from 62-66% of water, 24-28% of tri-isopropanolamine and 8-12% of a water-soluble defoaming agent; in a reactor, the liquid A, the liquid B and the liquid C are stirred for 2 hours according to a volume proportion of 1:1:1 at the rotation speed of 200 turns per min, and then the neutral cleaning agent for rust removal of the metal surfaces is obtained. The pHvalue of the cleaning agent is within the range from 6.0 to 7.5; a dust removal agent and a waste liquid generated after cleaning are both neutral, acid mist cannot be generated, iron and steel structures cannot be corroded, and meanwhile, the cleaning agent has corrosion resistance and is capable of preventing secondary corrosion, safe and environmentally friendly during use and suitable for popularization.
Owner:UNIV OF JINAN
Plant mutagenic agent and preparation and use methods thereof
InactiveCN105475127ASave resourcesGrowth impactAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersEthylenediamineIndium
The invention discloses a plant mutagenic agent used for polyploid breeding and culturing of plants. The mutagenic agent is prepared from heavy water, nuclear reactor wastewater, mining wastewater, zirconium-indium sand, ethylmethane sulfonate, colchicine, acenaphthene, fumiron, heteroauxin, naphtho-ethane, ammonium dihydrogen phosphate, diammonium phosphate, monopotassium phosphate, potassium nitrate, ammonium nitrate, ethylenediaminetetraacetic acid, oxalic acid penteticacid, 1,2-cyclohexanediamine tetraacetic acid, 2-hydroxyphenylacetic acid, hydroxyethyl ethylenediamine triacetic acid and tap water. The plant mutagenic agent comprises a solid part and a liquid part; the solid part is used for embedding seeds, and the zirconium-indium sand serves as the solid part; and the liquid part is used for watering seedlings. The solid and liquid cooperating mutagenesis mode is adopted, so that the mutagenic effect is better; the zirconium-indium sand containing rich radioactive substances is adopted as a matrix for culturing seeds, so that the mutagenic efficiency is easily improved.
Owner:HUIAN KELIAN AGRI TECH CO LTD
Preparation method of water-resisting antibacterial plastic master batch
The invention discloses a preparation method of water-resisting antibacterial plastic master batch. The preparation method comprises the following steps: (1) adding 1,2-cyclohexanediamine into water,slowly adding sulfuric acid until no white precipitates are generated, filtering, cleaning the filter residues, drying to obtain 1,2-CDTA; (2) adding 1,2-CDTA, isopropoxyboronic acid pinacol ester, sebacic acid disodium salt, stearyl monoglyceridyl citrate and nano ITO into a high-speed mixer, uniformly mixing to obtain a water-resisting antibacterial agent; and (3) uniformly mixing the water-resisting antibacterial agent and polyethylene resin according to a ratio of 1: (4 to 6), adding the mixture into a double-screw extruder, extruding, granulating to obtain functional master batch. The water-resisting antibacterial plastic batch prepared by the method provided by the invention is excellent in various mechanical performance, excellent in aging resistance, good in water immersion resistance, and still excellent in antibacterial performance after being immersed in water for a long time.
Owner:含山县胜发塑料制品有限公司
Stainless steel ball valve surface abrasion resisting and corrosion resisting high-phosphorus plating solution and abrasion resisting and corrosion resisting preparing method
PendingCN111575686AImprove corrosion resistanceImprove wear resistanceLiquid/solution decomposition chemical coatingNickel saltBall bearing
The invention discloses a stainless steel ball valve surface abrasion resisting and corrosion resisting plating solution. The pH of the plating solution is 4. Soluble nickel salt is NiSO4.7H2O and contains 10 g / L of nano SiO2 with the size being about 60 nm. According to the plating solution, CDTA(1,2-cyclohexanediamine quadrol) and lactic acid serve as complexing agents, Ce2(SO4)3.8 H2O serves astabilizer, and accordingly the problem about stability and the problem about spontaneous decomposition of an existing Ni-P plating solution are solved. In addition, nano SiO2 enters a plating layer,the particle hardness of nano SiO2 particles is high, the ball bearing effect can be formed on the friction surface, sliding friction is changed into rolling friction, good lubricating performance isshown, and accordingly abrasion resistance of the plating layer is better improved. Based on the above plating solution, the invention further provides a stainless steel ball valve surface abrasion resisting and corrosion resisting composite plating layer preparing method, and the abrasion resisting and corrosion resisting performance of the stainless steel ball valve surface can be effectively improved.
Owner:青田永拓金属表面技术处理有限公司
Water-soluble ternary polymer molecular brush anionic dye capture settling agent, and preparation method and application thereof
ActiveCN107879450AStructural solutionImprove electrostatic adsorption capacityWater contaminantsWaste water treatment from textile industrySide chainPotassium hydroxide
The invention relates to a water-soluble ternary polymer molecular brush anionic dye capture settling agent, and a preparation method and application thereof. The water-soluble ternary polymer molecular brush anionic dye capture settling agent is characterized by being prepared by a polymer main-chain poly(hydroxyethyl acrylamide), a cationic high-molecular side-chain poly(methacrylatoethyl trimethyl ammonium chloride) containing carboxyl groups at tail ends, a functional high-molecular side-chain precursor polymer poly(N-vinylformamide) containing carboxyl groups at tail ends, water, a catalyst which is N-hydroxysuccinimide, a 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide iodomethane salt, potassium hydroxide, 1,2-cyclohexane diamine tetraacetic acid dianhydride and carbon disulfide, andthe water-soluble ternary polymer molecular brush anionic dye capture settling agent is used for treating dye wastewater or artistic coating wastewater discharged during dye synthesis or dyeing and finishing processes. The capture settling agent provided by the invention has the advantages that the capturing capacity is good, the sedimentation speed is high, complex heavy metal ions can be treated, anionic dye and complexing heavy metal ions can be captured within a plurality of seconds, large aggregate precipitates can be rapidly grown within 10 seconds, and therefore rapid dye separation can be realized.
Owner:合肥九州龙腾科技成果转化有限公司
Cationic dye flocculant and its application
ActiveCN107698001BStructural solutionEfficient captureWater contaminantsWaste water treatment from textile industryMeth-Ptru catalyst
Owner:东营睿港管道工程有限责任公司
Ultrafast sedimentation type molecular brush structure heavy metal scavenger and its preparation method and application
ActiveCN107890856BEfficient captureSettling fastOther chemical processesWaste water treatment from metallurgical processScavengerSide chain
The invention relates to an ultra-fast sedimentation type molecular brush structure heavy metal scavenger and a preparation method and application thereof. The ultra-fast sedimentation type molecularbrush structure heavy metal scavenger is characterized by being prepared from poly hydroxyethyl acrylamide as a polymer main chain, poly N-vinylformamide as a functional polymer side chain precursor polymer with a terminal end containing a carboxyl group, water, N-hydroxysuccinimide as a catalyst, 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide iodomethane salt, potassium hydroxide, 1,2-cyclohexanediaminetetraacetic dianhydride and carbon disulfide, and can be used to treat wastewater produced by electroplating, smelting, mining, beneficiation, chemical, mechanical and other industries. A new chelating functional group can adsorb complexing heavy metal ions. Each basic unit can provide a hexacoordinate atom for strong chelation and adsorption, by chemical precipitation reaction of sodium dithiocarbamate of a sedimentation aid side chain and a sedimentation aid agent, large aggregates can be formed in a few seconds, rapid settling can be achieved, and the ultra-fast sedimentation type molecular brush structure heavy metal scavenger has efficient trapping and settling properties.
Owner:邯郸冠鑫科技有限公司
Preparation method of antibacterial coating for glasal in clean area
InactiveCN107699084AHigh sterilization rateStrong adhesionAntifouling/underwater paintsPaints with biocidesCalcium biphosphateEmulsion
A method for preparing an antibacterial coating for a cable board in a clean area, comprising the following steps: (1) adding a silver-loaded calcium phosphate antibacterial agent to a modified solution, heating the modified solution to 65-70°C, and then heat preservation treatment After 60‑70min, cool to room temperature, obtain a precipitate after centrifugation, and dry the precipitate to obtain a modified silver-loaded calcium phosphate antibacterial agent; (2) water-based hydroxyacrylic acid emulsion, modified silver-loaded calcium phosphate antibacterial agent, 1 , After 2-cyclohexanediaminetetraacetic acid, tetrapolyethylene glycol monooctyl ether, dicyandiamide, and polycaprolactam powder are mixed evenly, an antibacterial coating for a clean area cardboard is prepared. The preparation method of the antibacterial coating for the cable board in the clean area provided by the present invention is simple in operation and low in cost. The prepared antibacterial coating has a high bactericidal rate, and has excellent adhesion on the surface of the cable board, and is not easy to fall off. Phenomenon.
Owner:ANHUI WEIYE PURIFICATION EQUIP CO LTD
Konjac modified dye flocculant, and preparation method and application of flocculant
InactiveCN107879455ASolve the problem of slow sedimentationSettling fastWater contaminantsWater/sewage treatment by flocculation/precipitationPotassium hydroxideDyeing wastewater
The invention relates to a konjac modified dye flocculant, and a preparation method and application of the flocculant. The konjac modified dye flocculant is characterized by being prepared from konjacglucomannan, water, an initiator 2,2'-azobis(2-methylpropionamide)dihydrochloride V-50, acrylic acid, dimethylaminoethyl methacrylate, N-vinylformamide, cyclohexane diamine tetraacetic acid dianhydride and potassium hydroxide, and the konjac modified dye flocculant is used for treating dye wastewater or artistic coating wastewater discharged during dye synthesis or dyeing and finishing processes.The konjac modified dye flocculant has the advantages that the capturing capacity is strong, the sedimentation speed is fast, complex heavy metal ions can be treated, dye molecules can be captured within a plurality of seconds, large sedimented particles can be grown rapidly, so that the purpose of rapid dye separation can be realized, the flocculant is nontoxic, environmentally friendly and easyto degrade, secondary pollution is not easily caused in a using process, the operation is simple and convenient, the processing cost is low, the adaptability is high, and the like.
Owner:SHUNDE POLYTECHNIC
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