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53 results about "Ammonium sulfamate" patented technology
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Ammonium sulfamate (or ammonium sulphamate) is a white crystalline solid, readily soluble in water. It is commonly used as a broad spectrum herbicide, with additional uses as a compost accelerator, flame retardant and in industrial processes.
Long-acting antibacterial amino molding compound
The invention relates to a long-acting antibacterial amino molding compound. A silver nanowire composite antibacterial assistant comprises the following components in parts by weight: 0-50 (excluding 0) parts of silver nanowire, 0-25 (excluding 0) parts of nano zinc compound, 10-100 parts of alcohol compound, 10-100 parts of distilled water and 0.1-5 parts of hexamethylenetetramine. The long-acting antibacterial amino molding compound comprises the following components in parts by weight: 2000-4000 parts of urea, 4000-8000 parts of formaldehyde, 200-400 parts of melamine, 10-150 parts of silver nanowire composite assistant, 50-150 parts of hexamethylenetetramine, 20-50 parts of ammonium sulfamate curing agent, 100-500 parts of filler, 1000-2500 parts of cellulose, 20-100 parts of lubricant and 1-100 parts of dispersing agent. The antimicrobial ratio of the molding product of the long-acting amino molding compound for Escherichia coli, Staphylococcus aureus, Friedlander's bacillus, Salmonella typhimurium and Enterococcus faecalis is greater than 99.9%, the antimicrobial activity value is greater than 4, and the long-acting amino molding compound has the advantages of favorable mechanical properties and favorable moldability.
Owner:CHANGZHOU JOEL PLASTIC
Sulfite detection test paper and preparation method thereof
InactiveCN102213678AEasy to detectEasy to makeMaterial analysis by observing effect on chemical indicatorSulfiteFilter paper
The invention discloses sulfite detection test paper and a preparation method thereof. The sulfite detection test paper comprises a base plate and a color developing paper sheet, wherein the color developing paper sheet is prepared by adopting the steps of: fully dipping filter paper in an isovolumetric mixed solution of a hydrochloric acid triscarbinol solution with concentration of 2-5g / l and an ammonium sulfamate solution with concentration of 10-15g / l, and naturally drying in a shadow place. The color developing paper sheet is fixedly connected with the base plate. The sulfite detection test paper has the characteristics of simplicity in manufacture and operation, convenience for carrying, high testing speed, certain selectivity, accuracy and sensitivity and the like, is vey suitable for rapid detection of a site, and ensures that sulfide is tested simply and conveniently so that laypeople can operate the sulfide detection test paper.
Owner:INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
Broad-spectrum efficient antibacterial amino molding material
The invention relates to a board-spectrum efficient antibacterial amino molding material. An alcohol / zinc / titanium nano-composite antibacterial agent of the board-spectrum efficient antibacterial amino molding material is composed of the following components in parts by weight: 20-30 parts of alcohol compound, 0-25 parts, excluding 0 part, of nano zinc compound, 0-35 parts, excluding 0 part, of nano titanium dioxide, 0.1-5 parts of hexamethylenetetramine and 40-50 parts of water. The antibacterial amino molding material is composed of the following components in parts by weight: 2000-4000 parts of urea, 4000-8000 parts of formaldehyde, 300-400 parts of melamine, 10-150 parts of nano-composite antibacterial agent, 50-150 parts of hexamethylenetetramine, 20-50 parts or 50-100 parts of ammonium sulfamate curing agent, 100-500 parts of filler, 1000-2500 parts of cellulose, 20-40 parts of lubricant and 1-100 parts of dispersant. The antibacterial ratio of a molded product of the amino molding material to escherichia coli, staphylococcus aureus, Klebsiella pneumonia, salmonella typhimurium and enterococcus faecalis is greater than 99.9%, and the value of the antibacterial activity of the molded product is greater than 4, and the molded product of the amino molding material is good in mechanical properties and moldability.
Owner:CHANGZHOU JOEL PLASTIC
Binder and process for producing fabrics containing cyclodextrins fixed by said binder
InactiveUS20140178457A1Long resistance to washingSoft reaction conditionOther chemical processesBiochemical fibre treatmentCyclodextrinSulfamic acid
The application concerns a Binder (comprising sulfamic acid, ammonium sulfamate and ammonium sulfate) and process of production of fabrics containing cyclodextrins fixed to the binder. The technology allows fixing a binder to natural, synthetic or artificial fibers, and, by means of a thermal processes, to fix cyclodextrins to the same binder, giving rise to fabrics suitable to incorporate active principles and to release them along with time. Peculiar characteristics of the binder are its abilities to interact with several types of fabric, independently of their composition, and with several types of cyclodextrin. Other peculiarities of embodiments are: the ability to produce functionalized fabrics, adapted to be weighted with desired molecules and release them gradually along time, with a process that does not alter the original characteristics of the fabric; the possibility of repeating several times the weighting of such molecules, so as to be able to define such fabrics as “reloadable” or “rechargeable.”
Owner:GIANIS
Jade vein simulated high-intensity low-shrinkage amino moulding plastic particle material and production method
The invention discloses a jade vein simulated high-intensity low-shrinkage amino moulding plastic particle material and a production method. The high-intensity low-shrinkage amino moulding plastic particle material is characterized by being prepared from formaldehyde water solution, urea, melamine, auxiliary agents, sodium hudroxide, filling materials and the like, wherein the filling materials are mixed bodies of wood powder, inorganic and organic medium short fiber, paper pulp plates, waste paper wood pulp, grain and fruit hulls, bone meal, starch and inorganic oxides; the auxiliary agents are urotropine, oxalic acid, water, ammonium sulfamate, magnesium oxide, zinc oxide, ammonium chloride, ethanol, trolamine, ammonia water, PPG, T-8, sodium-naphthalenesulfonate, glycerin, magnesium carbonate, hydroxyphenol, pigment, zinc stearate and the like. The production method of the jade vein simulated high-intensity low-shrinkage amino moulding plastic particle material comprises the following steps that in a resin synthesis stage, a general alkali-acid-alkali method is selected for synthesizing the resin; in an evaporation polycondensation stage, the resin and the filling materials are input into a vacuum granulation reaction kettle, and the sealed production is completed in one step.
Owner:陈天云
Quick detecting reagent for gonococcus
InactiveCN1782093AAccurate detectionQuick checkMicrobiological testing/measurementP-NitroanilineSodium nitrite
The quick gonococcus detecting reagent consists of separately stored oxidase reaction reagent and proline aminopeptidase reaction reagent. The oxidase reaction reagent is water solution of tetramthyl-p-phenylene diamine of 10 g / l concentration, and the proline aminopeptidase reaction reagent consists of separately stored six kinds of reagents, including reagent A of 2 g / l concentration L-proline-P-nitroaniline aqua, reagent B of 0.01 mol / l PBS, reagent C of 2.5 mol / l hydrochloric acid aqua, reagent D of 11 g / l concentration sodium nitrite aqua, reagent E of 5 g / l ammonium amino sulfonate aqua, and reagent F of 0.55 g / l concentration ethanol solution of N-(1-naphthyl)ethylenediamino dichloride. The present invention is used in detecting gonococcus in urethra excreta according to positive of both gonococcus oxidase test and proline aminopeptidase test.
Owner:广州蓝星生物科技开发有限公司
Method for preparing poly sulfoacid inner salt anticoagulant biomaterial via atom transfer radical polymerization
InactiveCN104368050AGuaranteed mechanical propertiesExcellent anticoagulant propertiesPharmaceutical containersMedical packagingPolymer scienceCuprous chloride
The invention relates to a novel method for preparing a poly sulfoacid inner salt anticoagulant biomaterial. A biomaterial with a good anticoagulation property is obtained by grafting ammonium sulfamate inner salt monomers on the surface of a material via an atom transfer radical polymerization method. The grafting modification method comprises the following steps: firstly, activating the surface of the material by virtue of an isocyanate coupling agent; then reacting hydroxyl radicals in bromhydrin with free isocyanate radicals in the surface of the material and introducing surface initiation radicals required by atom transfer radical polymerization; and finally, initiating a polymerization reaction of the ammonium sulfamate inner salt monomers on the surface of the material under the conditions that cuprous chloride and 2,2'-bipyridyl are taken as a catalyst and a ligand. The kinetics study shows that the surface grafting polymerization is 'active' polymerization and conforms to a 'controllable' characteristic of the atom transfer radical polymerization. The modified material maintains original mechanical properties thereof and is basically not adhered to a blood platelet in blood platelet (PRP) detection for up to 2 hours.
Owner:NANJING NORMAL UNIVERSITY
Rapid detection agent for determination of water quality aniline concentration
InactiveCN104931436ASimple preparation processEasy to carryMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsIndustrial waste waterWater quality
The invention relates to a preparation and use method of a rapid detection agent for determination of water quality aniline concentration, the a rapid detection agent comprises two kinds of powder, and is prepared by mainly mixing sodium nitrite, N-(1-naphthyl) ethylenediamine hydrochloride, ammonium sulfamate, amino sulfonic acid and the like, the two kinds of powder are successively added into a to-be-tested sample, and a spectrophotometer or a colorimeter is used for direct measurement of a chromophoric solution. The rapid aniline detection agent is easy to store, easy to carry, stable in performance, accurate and reliable in result, and simple in operation, can be used by non-professional personnel, and is suitable for on-site rapid detection of aniline in water surface water, industrial waste water and other water bodies.
Owner:上海绿帝环保科技有限公司
Process for the preparation of dinitramidic acid and salts thereof
Owner:COUNCIL OF SCI & IND RES
Kit for detecting anilines compounds in water body
ActiveCN103983641AEasy to detectQuick checkMaterial analysis by observing effect on chemical indicatorCellulosePositive control
The invention discloses a kit for detecting anilines compounds in a water body. The kit comprises a dropping bottle filled with detection liquid A, a dropping bottle filled with detection liquid B, a dropping bottle filled with detection liquid C, a suction pipe and a detection card, wherein the detection liquid A is a 0.2mol / L dilute sulphuric acid solution, the detection liquid B is a 2.5g / L sodium nitrite solution, the detection liquid C is a 20% ammonium sulfamate solution, the detection card is formed by a shell cover and a shell base through connection, a purple red positive control color lump and a milk white negative control color lump are arranged on the shell cover, a reaction tank and a detection hole are formed in the shell cover, the reaction tank is not communicated with the detection hole, a test strip is arranged on the shell base and comprises a PVC (polyvinyl chloride) rubber slab used as a support structure, absorbent paper is bonded on the PVC rubber slab, a mixed cellulose ester filter membrane layer is arranged on the absorbent paper, and a thin dried color developing agent enveloped layer is arranged on the mixed cellulose ester filter membrane layer. The kit can rapidly detect the anilines compounds with the minimum concentration of 0.5mg / L.
Owner:ZHEJIANG HI TECH ENVIRONMENTAL TECH
Ammonium sulfamate demulsifier, synthesis method thereof and application of ammonium sulfamate in cold rolling of waste emulsion
InactiveCN104447424AThe synthesis method is simpleHigh yieldDewatering/demulsification with chemical meansSulfuric acid esters preparationLiquid productSynthesis methods
The invention discloses an ammonium sulfamate demulsifier, a synthesis method thereof and application of ammonium sulfamate demulsifier in cold rolling of a waste emulsion. The ammonium sulfamate demulsifier is prepared according to the following steps: (1) carrying out etherification reaction, namely adding boron trifluoride etherate into glycerol, dropwise adding propylene oxide slowly to carry out reaction, dropwise adding solution of sodium hydroxide in ethanol, filtering, and carrying out reduced pressure distillation to obtain a viscous transparent liquid product of etherification reaction; (2) carrying out sulfation reaction, namely mixing sulfamic acid and urea uniformly, slowly adding the mixture of sulfamic acid and urea into the product of etherification reaction from the step (1), adding 200ml of water after the sulfation reaction is finished, and neutralizing the mixture with an alkali until the pH value is 7.0-8.5 so as to obtain a crude product; and (3) purifying the crude product to obtain the light-yellow waxy demulsifier. The synthesis method of the ammonium sulfamate demulsifier is simple, less side reaction is generated, and the yield and the demulsification efficiency of the ammonium sulfamate demulsifier are high.
Owner:武汉钢铁有限公司
Formaldehyde quick detection reagent, preparation method and application thereof
InactiveCN104327042AThe synthetic route is simpleLow costOrganic chemistryFluorescence/phosphorescenceRefluxChemical structure
The invention discloses a formaldehyde quick detection reagent, a preparation method and an application thereof. A chemical name of the formaldehyde quick detection reagent is 2-amino-3-(3-amino-1H-benzo[d]imidazole)-pyridine of which a chemical structure formula is represented as the formula I. The preparation method comprises following steps: (1) carrying out a reaction to a mixture consisting of nicotinamide and ammonium sulfamate in oil bath at 200 DEG C for 6 hours to obtain an intermediate 3; (2) performing temperature-increasing reflux to the intermediate 3 in an acid environment for 4 hours, cooling the intermediate 3 to room temperature and adjusting the pH value to 7-8 to obtain an intermediate 2; and (3) carrying out a reaction to the intermediate 2 with 1,2,4-triaminobenzene to obtain a target product. The reagent prepared according to the method hereinbefore can quite easily detect the concentration of formaldehyde. The formaldehyde quick detection reagent is simple in synthetic route, is low in cost, is convenient to use, is suitable for actual production application, is high in probe responding speed and is high in sensitivity. The reagent can achieve quick detection quantitatively and high-sensitively of the formaldehyde in environment and foods.
Owner:ZHENGZHOU UNIV
Formaldehyde free binding composition, for mineral fibres
The present invention relates in general terms to a formaldehyde-free aqueous binding composition (binder) comprising ammonium sulfamate, and to a fibrous mineral material obtained by polymerization of said composition. Advantageously, the present composition makes it possible to obtain rapid polymerization times during the formation of fibrous mineral material, while nonetheless ensuring the thermal and mechanical stability thereof.
Owner:STM TECH
Acidic degreasing and derusting liquid prepared by utilizing industrial wastewater and preparation method of acidic degreasing and derusting liquid
ActiveCN106400035ATo achieve the purpose of degreasing and derustingLow toxicitySodium acetateThiourea
Owner:WUHAN OXIRAN SPECIALTY CHEM CO
Method for producing ammonium sulfamate by utilization of exhaust gas containing ammonia and carbon dioxide
The invention relates to the field of fine chemical industry, especially to a method for producing ammonium sulfamate by the utilization of exhaust gas containing ammonia and carbon dioxide that is produced during industrial production processes of melamine, sodium cyanate and nitrogenous fertilizer. Water absorbs tail gas containing ammonia and carbon dioxide so as to form an absorption liquid containing NH3-CO2-H2O, and the absorption liquid reacts with sulfamic acid to generate ammonium sulfamate and carbon dioxide. According to the method, by combining ammonia into fine chemicals, ammonium sulfamate with high added value is generated and high-purity carbon dioxide is obtained simultaneously. By the method, environmental pollution can be minimized and harmful gases can be changed into useful things.
Owner:SHENYANG RES INST OF CHEM IND
Improved nitrobacteria Diphenylamine-Griess detection method
InactiveCN102094065AIncrease reaction rateHigh reaction conversion rateMaterial analysis by observing effect on chemical indicatorMicrobiological testing/measurementMicroorganismReaction rate
The invention relates to the fields of environmental chemistry and environmental microbiology, in particular to an improved nitrobacteria Diphenylamine-Griess detection method. The method specifically comprises the following steps of: adding 5 to 8 drops of hydrochloric acid into culture solution in which nitrobacteria are cultured to acidize the culture solution; adding ammonium sulfamate; reacting at the temperature of between 50 and 60 DEG C until a culture medium is colorless and gas escapes from the bottom of the culture solution; when gas escape stops, adding ammonium sulfamate again to convert NO2<-> into N2 and allowing the N2 to escape; and adding 3 to 5 drops of diphenylamine into the culture solution, wherein the culture solution is blue. The NO2<-> can be removed from the culture solution by the method, so that the reaction rate and conversion efficiency of the NO2<-> in the reaction system can be improved greatly.
Owner:LIAONING BEIFANG ENVIRONMENTAL PROTECTION +1
Method for testing nitroaniline content
InactiveCN101303311AMaterial analysis by observing effect on chemical indicatorColor/spectral properties measurementsEthylenediamineP-Nitroaniline
The invention discloses a paranitroaniline content detection method, having technique content of 1) dissolving an analytically pure contrast of the paranitroaniline detection by methanol under an ultrasonic condition, diluting by a dilute sulfuric acid solution to obtain a concentrated liquid, 2) diluting the concentrated liquid of the contrast as required to prepare a series solution with a determined concentration, charging a sodium nitrite solution, an ammonium sulfamate solution and a 2-hydrochloric acid naphthyl ethylenediamine solution sequentially for a coloring process so as to obtain a work liquid series capable of optical density (OD) measurement, measuring the optical density (OD), 3) processing the concentration and the optical density (OD) of the work liquid series of the contrast to obtain a standard curve and a corresponding regression equation, 4) processing and measuring the sample to be measured by the same method, and calculating the paranitroaniline concentration of weight percentage in the sample by the regression equation.
Owner:ZHEJIANG ESIGMA BIOTECH CO LTD
A method for the separation and preparation of high-energy oxidant ammonium dinitramide
ActiveCN113336241BSolve the complicated purification processSimple methodExplosivesPressure gas generationHigh energyChromatography column
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1
Rapid metal electroacoustic oil-removing rust-removing and descaling detergent
The invention discloses a rapid metal electroacoustic oil-removing rust-removing and descaling detergent which consists of the following components in parts: 10-12 parts of sodium bicarbonate, 8-10 parts of ferric hydroxide, 5-8 parts of copper hydroxide, 4-5 parts of sodium hydroxide, 3-5 parts of sodium carbonate, 4-5 parts of aluminum sulfate, 2-3 parts of aluminum hydroxide, 3-5 parts of magnesium sulfate, 4-5 parts of magnesium carbonate, 5-8 parts of ammonium sulfamate, 2-3 parts of boric acid, 5-6 parts of phosphoric acid, 2-3 parts of methylsulfonic acid, 1-3 parts of alkyl glycoside, 3-4 parts of mannose, 2-3 parts of hexadecyl trimethyl ammonium bromide, 5-6 parts of tetrabutyl ammonium bromide and 20-25 parts of pure water. The rapid metal electroacoustic oil-removing rust-removing and descaling detergent is capable of rapidly removing oil stain, rust, water scale and the like simultaneously, is convenient to use, safe, free of pollution and beneficial for environment protection.
Owner:司徒建辉
Static adsorption-resistant functional fabric
InactiveCN104385743AImprove antistatic performanceFeel goodFibre treatmentSynthetic resin layered productsPolyesterFiber
The invention relates to the field of fabrics and provides a static adsorption-resistant functional fabric with good static resistance, good handle, washing resistance and a low cost. The static adsorption-resistant functional fabric comprises a base cloth, the upper and lower surfaces of the base cloth are provided with simulate wool layers, the base cloth is obtained by blending of 80-90wt% of polyester fibers and 10-20wt% of conductive fibers, the polyester fibers are 85D / 33F polyester low-stretch yarn, the conductive fibers are 22D / 5F conductive yarn, an antistatic finishing agent composition are sprayed on the simulate wool layers on the upper and lower surfaces of the base cloth, and the antistatic finishing agent composition comprises 50-70wt% of dodecyl dimethyl hydroxyethyl quaternary ammonium salt, 10-15wt% of hydroxymethylmelamine resin, 6-12wt% of ammonium sulfamate, 12-15wt% of a detergent-resistant agent and the balance water.
Owner:QUANZHOU JIANAN WEAVING
Preparation method of acetoacetamide-N-sulfonic acid triethylamine salt
ActiveCN113454056ASimple post-processingGood conditionMolecular sieve catalystsOrganic compound preparationPtru catalystFixed bed
The invention provides a preparation method of acetoacetamide-N-sulfonic acid triethylamine salt, which comprises the following steps: dissolving sulfamic acid in first dichloromethane to prepare a first reaction solution; dissolving triethylamine in second dichloromethane to prepare a second reaction solution, and adding the second reaction solution into the first reaction solution for amination reaction to form an ammonium sulfamate solution; filling a zeolite catalyst into a fixed bed reactor, sequentially introducing the ammonium sulfamate solution and diketene into the fixed bed reactor, and reacting under preset conditions to form the acetoacetamide-N-triethylamine sulfonate solution. On one hand, the post-treatment process of the product is simplified, so that the final product acesulfame is better in appearance, and the use feeling is remarkably improved; on the other hand, large-scale continuous production of the acetoacetamide-N-sulfonic acid triethylamine salt is realized, the reaction time is greatly shortened, the reaction yield is improved, and the production cost of acesulfame potassium is further reduced.
Owner:ANHUI JINGHE IND
Method for quickly detecting volatile N-nitrosamine in cosmetics
The invention relates to a method for quickly detecting volatile N-nitrosamine in cosmetics. The method comprises the following steps: weighing a small amount of cosmetics; adding ammonium sulfamate and acetone, performing ultrasonic dissolution and refrigerated centrifugation, and extracting with a dichloromethane layer; and performing a gas phase chromatography-thermal energy analyzer method on the extract solution to realize quantitative detection of a target compound. According to the invention, the method can effectively detect out volatile N-nitrosamine in water-soluble or fat-soluble cosmetics, has the advantages of simple pretreatment, little time consumption, low cost and high accuracy, is applicable to actual detection of cosmetics, and can provide a technical method support for detection of volatile N-nitrosamine in cosmetics and production quality control.
Owner:ANHUI YIKANGDA PHOTOELECTRIC TECH CO LTD +2
Antistatic finishing agent for fabric finishing
InactiveCN107675487AImprove antistatic performanceNot corrosiveFlame-proof filament manufactureVegetal fibresPentaerythritolMethyl salicylate
The invention relates to the technical field of fabrics, in particular to an antistatic finishing agent for fabric finishing. The antistatic finishing agent for fabric finishing is prepared from, by weight parts, 6 parts of ammonium sulfamate, 2.6 parts of methyl salicylate, 6 parts of sodium benzoate, 4.2 parts of alginic acid, 1.5 parts of pentaerythritol, 4.6 parts of methylcellulose, 2.2 partsof soybean peptide, 6.5 parts of ammonium phosphate, 2.1 parts of sodium dodecyl sulfate, 2.1 parts of dibromoneopentyl glycol, 220 parts of water and 5.6 parts of additives. The antistatic agent cangreatly improve the antistatic performance of a fabric, has no corrosiveness to the fabric and does not hurt human skin.
Owner:安徽东锦高科新材料有限公司
Environmentally-friendly fast-curing long-storage-time amino molded granule and production method thereof
InactiveCN104761868AImprove performanceHandlingpowder-freeOXALIC ACID DIHYDRATEHexamethylenetetramine
The invention discloses an environmentally-friendly fast-curing long-storage-time amino molded granule and a production method thereof. Raw materials for preparing the granule comprise an aqueous solution of formaldehyde, urea, melamine, assistants, caustic soda and a filler. The filler is a pulp board, waste paper wood pulp, wood powder, vegetable fiber or husk, bone meal, starch and inorganic oxide mixture, and the assistants comprise urotropine, oxalic acid, water, ammonium sulfamate, magnesium oxide, zinc oxide, ammonium chloride, ethanol, triethanolamine, ammonia water, PPG, T-8, sodium naphthalene sulfonate, glycerin, magnesium carbonate, resorcinol, a pigment and zinc stearate. The production method of the environmentally-friendly fast-curing long-storage-time amino molded granule comprises the following steps: 1, synthesizing resin through a general alkali-acid-alkali technology, inputting the resin and the filler into a vacuum granulating reaction kettle in an evaporative concentration phase, and completing closed production in a one step manner.
Owner:陈天云
Nutrient formula for soilless culture of orchids and application of nutrient formula
InactiveCN104961588AIncrease resistanceStrong resistanceFertilizer mixturesIron sulfateNutrient solution
The invention discloses a nutrient formula for the soilless culture of orchids. The nutrient formula comprises the following components in parts by weight: 13 to 20 parts of ammonium sulfamate, 11 to 13 parts of ammonium iron sulfate, 2 to 20 parts of polyamine, 4 to 5 parts of leucine, 4 to 5 parts of proline, 0.4 to 0.6 part of palladium nitrate, 0.1 to 0.3 part of barium molybdate, 0.1 to 0.3 part of iodine bromide, 0.06 to 0.2 part of calcium hypochlorite and the balance of water. A nutrient solution is obtained by weighing the components according to the proportion and uniformly mixing the components. The seepage force and the diffusivity of the nutrient solution are greatly enhanced when seedlings are cultured, so that the period of emergence is greatly shortened, the rate of emergence is increased, the emergence quality is improved, and in addition, the cost is reduced; moreover, the nutrient solution is more applicable to high-altitude low-temperature seedling culture.
Owner:汤在英
Natural scale remover for PS plate/CTP plate rinsing machine and preparation method of natural scale remover
InactiveCN104232355AExtended storage timeGood descaling and cleaning abilityInorganic/elemental detergent compounding agentsAmpholytes/electroneutral surface-active compoundsPolyaspartic acidGranularity
The invention relates to the field of PS / CTP printing and in particular relates to a natural scale remover for a PS plate / CTP plate rinsing machine and a preparation method of the natural scale remover. The scale remover is prepared from the following raw materials in parts by weight: 3-5 parts of citric acid, 4-8 parts of boric acid, 10-14 parts of white vinegar, 1-3 parts of green tea seed meal with the granularity of 400-600 meshes, 2-3 parts of lauryl sodium sulfate, 0.1-0.2 part of ammonium sulfamate, 1-3 parts of sodium of polyaspartic acid, 50-60 parts of ionized water and 2-4 parts of aids. According to the scale remover disclosed by the invention, the traditional diluted hydrochloric acid solution is replaced by a mixed solution of the citric acid, boric acid and white vinegar, good scale removing capacity is remained, and the scale remover is environment-friendly and safe and has less possibility of corroding equipment. The green tea seed meal contains natural decontaminating components, has antibacterial and preservative effects and is combined with the aids and other components, so that the scale remover disclosed by the invention has high scale removing and cleaning capacities, can be used for effectively preventing the plate rinsing machine from scaling again, does not cause harm to the plate machine, does not influence the printing effect, is difficult to rot and deteriorate and is storage-resistant.
Owner:HEFEI ALL ROUND POLYMER MATERIAL FACTORY
Preparation method of acesulfame potassium
ActiveCN113454074AReduce manufacturing costEasy to usePhysical/chemical process catalystsOrganic chemistryPtru catalystHydrolysate
The invention discloses a preparation method of acesulfame potassium, which comprises the following steps: adding triethylamine into a sulfamic acid solution, and carrying out amination reaction to generate an ammonium sulfamic acid salt solution; adding diketene into the obtained ammonium sulfamate solution, and carrying out acylation reaction under the action of a solid superacid catalyst to obtain an intermediate solution; dissolving sulfur trioxide in a solvent to form a cyclizing agent solution; adding a cyclizing agent solution into the intermediate solution, and carrying out sulfonation cyclization reaction to obtain a cyclization product solution; adding a hydrolytic agent into the cyclization product solution, and carrying out hydrolysis reaction to obtain a hydrolysate solution; and adding a potassium hydroxide solution into the organic phase of the hydrolysate solution to obtain acesulfame potassium. According to the method, the content of impurities in the acesulfame potassium can be reduced, so that the acesulfame potassium is better in condition, the conversion rate of the raw materials is increased, the yield of a cyclization product is increased to a great extent, further, the yield of the final product acesulfame potassium is increased, and the production cost of the acesulfame potassium is reduced.
Owner:ANHUI JINGHE IND
Jewelry white surface treatment plating solution, preparation method and electroplating method thereof
The invention discloses a jewelry white surface treatment plating solution, a preparation method and an electroplating method thereof. The preparation method comprises the steps that about 90 g of ammonium sulfamate and about 20 g of nickel aminosulfonate are weighed and poured into a 1 L beaker; 700 ml of water is added for dilution and dissolution; a stirrer is added, the beaker is added into a thermal-collection type constant temperature heating magnetic stirrer for performing heating and stirring for 40 min; the mixture is taken out, and then dinitroso-diamine palladium is added, wherein the content is palladium is about 6 g; water is added to reach about 950 ml and the mixture is added into the thermal-collection type constant temperature heating magnetic stirrer for performing heating and stirring for 15 min; the beaker is taken out, a solution is filtered, the filtered solution is subjected to testing of PH value through PH paper of the specification of 6-9, if the PH value is 8-9, the plating solution is obtained; if the PH value is not 8-9, a dropper is used for taking ammonium hydroxide, a half amount of the ammonium hydroxide in the dropper is added, a glass rod is used for performing stirring for 203 min, then, the PH value is tested, and the steps are repeatedly executed till the PH value is 8-9; finally, pure water is added to supplement the solution to reach 1 L so that the plating solution can be formed.
Owner:江捷新 +1
Chromium-free passivator for copper part
InactiveCN104894551AImprove protectionAvoid pollutionMetallic material coating processesChromium freePhosphate
Disclosed is chromium-free passivator for a copper part. In terms of a raw material formula, the chromium-free passivator for the copper part comprises, by mass, 50-80 parts of acetic acid, 30-50 parts of oxalic acid, 5-10 parts of sodium citrate, 3-5 parts of ammonium dihydrogen phosphate, 5-8 parts of disodium hydrogen phosphate, 4-6 parts of dicalcium phosphate, 3-5 parts of sodium carboxymethyl starch, 5-10 parts of poly-aspartic acid, 6-10 parts of 1-hydroxyethylene-1,1-diphosphonic acid, 5-10 parts of diethylenetriamine penta methylene phosphonic acid, 5-10 parts of methyl methacrylate, 3-5 parts of ammonium sulfamate, 8-10 parts of tert-butyl hydroperoxide and 150-200 parts of purified water. The chromium-free passivator for the copper part enables the copper part to keep good corrosion resistance, can facilitate environmental protection and simplification of the operating technology, improves the production efficiency, and avoids the phenomena that due to the fact that a large amount of poisonous acid mist or chromic acid is generated when workpieces are processed through acid pickling, operators are harmed, and the environment is polluted.
Owner:张慧玲
Potassium permanganate consumption standard sample for plastic products for food contact and preparation method
InactiveCN108613858AImprove uniformityImprove stabilityPreparing sample for investigationMaterial analysis by optical meansFiberFood contact
The invention discloses a potassium permanganate consumption standard sample for plastic products for food contact and a preparation method. The potassium permanganate consumption standard sample is prepared from raw materials including amino molding plastic, alpha wood pulp fiber, calcium carbonate, barium sulfate, titanium dioxide, ammonium sulfamate as a curing agent, polyethylene wax as a flowing agent, zinc stearate as a lubricant and sodium dodecyl sulfate as a surfactant by mixed ball milling, compression molding, compression printing curing and finishing molding in sequence. The preparation method is simple in process, and the prepared potassium permanganate consumption standard sample has good uniformity and stability; constant-value laboratory data is equal in accuracy, and the constant-value data is normally distributed; the blank of the current plastic potassium permanganate consumption standard sample for food contact is filled in, and the standard sample can be used for inspection of entry-exit inspection laboratories, commercial inspection laboratories, quality and technical supervision laboratories and self-inspection and self-control of production enterprises and meets requirements of quality monitoring in the actual testing process.
Owner:王豪
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