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39 results about "Potassium thiosulfate" patented technology
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Potassium thiosulfate, maintains the high potassium content. Within the body of potassium, especially potassium plays a major role in meeting the high requirements needed for the development of the plant during the pre-harvest and harvest fruit.
Light fastness of inkjet images by adding salts into inkjet media
InactiveUS6423375B1Improve light fastnessDuplicating/marking methodsPretreated surfacesSodium thiocyanateSodium iodide
At least one of the following compounds is applied as a re-wet solution to media: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to the re-wet solution can improve light fastness on the order of eight to thirteen times or more on porous glossy media. These additives are particularly effective with water-soluble dyes, including dyes such as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).
Owner:HEWLETT PACKARD DEV CO LP
Method for recycling iron waste for fenton technology and water treating device of method
InactiveCN105174413AIncrease reaction rateRealize resource utilizationWater/sewage treatment by oxidationPotassium borohydrideSulfite salt
The invention discloses a method for recycling iron waste for the fenton technology. The method comprises the following steps that hydrogen peroxide, the iron waste and an activating agent are added to waste water to be treated, stirring is conducted so that the iron waste can be dispersed in a reaction system, a reaction is conducted, and then solid and liquid separation is conducted, wherein the activating agent is any one or a mixture of sodium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, sodium thiosulfate, potassium thiosulfate, calcium thiosulfate, magnesium thiosulfate, sodium borohydride, potassium borohydride, hydroxylamine hydrochloride and ascorbic acid. By means of the method, various kinds of iron waste are recycled, meanwhile, zero iron mud emission is achieved, and thus pollution to the environment is effectively reduced. The invention further provides a water treating device capable of achieving the method. By means of the method and the water treating device, the reaction speed of the iron waste in the fenton system is greatly increased, the effective pH range of the fenton system is expanded, meanwhile zero iron mud emission is achieved, and thus pollution to the environment can be easily reduced.
Owner:HOHAI UNIV
Cyanide-free bright silver plating electroplating solution
The invention relates to a cyanide-free bright silver plating electroplating solution which is characterized by mainly consisting of silver nitrate, potassium thiosulfate, potassium metabisulfite, potassium sulphate, boric acid, sulfuric acid, brightener, deionized water and the like. The cyanide-free bright silver plating electroplating solution does not contain cyanide, the coating is bright in mirror surface, a cyanide silver plating effect can be achieved, and the cyanide-free bright silver plating electroplating solution has the characteristics that the coating has less possibility of discoloring, and the solution is low in brittleness and high in adhesion force.
Owner:ZHANGJIAGANG XIANGXIN ELECTROPLATING MATERIAL
Decolorization of dyed keratin fibers
The invention relates to agents for the reductive decolorization of dyed keratin fibers, in particular human hair, containing in an aqueous cosmetic carrier (a) one or more reduction agents from the group consisting of sodium dithionite, zinc dithionite, potassium dithionite, sodium sulfite, sodium hydrogen sulfite, potassium sulfite, potassium hydrogen sulfite, ammonium sulfite, sodium thiosulfate, potassium thiosulfate, ammonium thiosulfate, hydroxymethanesulfinic acid, aminomethanesulfinic acid, cysteine, thiolactic acid, sulfanylacetic acid (thioglycolic acid), and / or ascorbic acid, and (b) one or more zwitterionic surfactants, each of which has at least one quaternary ammonium group and a grouping of —SO3— as structural units.
Owner:HENKEL KGAA
Light fastness of inkjet images by adding salts into inkjet inks and print media
InactiveUS6432523B1Improve light fastnessLayered productsDuplicating/marking methodsSodium thiocyanateSodium iodide
At least one of the following compounds is included on a surface layer of a print medium and in an inkjet ink formulation to be printed thereon: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to both the print medium and the inkjet ink can improve light fastness on the order of eight to thirteen times or more on porous glossy media. These additives are particularly effective with water-soluble dyes, including such dyes as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).
Owner:HEWLETT PACKARD DEV CO LP
Organic and inorganic compound fertilizer special for promoting growth and improving disease resistance of lotus roots
InactiveCN106588312ADisease controlImprove disease resistanceAlkali orthophosphate fertiliserExcrement fertilisersDiseasePhosphate
The present invention discloses to an organic and inorganic compound fertilizer special for promoting growth and improving disease resistance of lotus roots. The compound fertilizer is prepared from fermented chicken manure, wheat straw, mushroom residue, plant ash, wormcast, urea, ammonium zinc phosphate, ammonium polyphosphate, potassium nitrate, trace elements, compound bacteria, humic acid, chitosan, alginic acid, 3, 4-dimethylpyrazole phosphate, sodium tetraphenylborate, ammonium citrate, potassium thiosulfate, polyaspartic acid, dicyandiamide, sodium nitrophenolate, yttrium nitrate, nanocarbon, rotenone and sucrase. The compound fertilizer is reasonable in formula, balanced in nutrition, capable of promoting the growth of the lotus roots and improving disease resistance of the lotus roots at the same time, and high in fertilizer utilization rate.
Owner:刘永清
A method for preparing waterproof cellophane
The invention relates to the technical field of packaging paper, and particularly relates to a method for preparing waterproof cellophane. Emulsified paraffin and an acrylic acid monomer are subjectedto an emulsification reaction initiated by potassium thiosulfate to obtain modified emulsified liquid paraffin; bagasse is subjected to alkalization and yellowing to obtain cellulose viscose; after the cellulose viscose and the modified emulsified liquid paraffin are mixed and subjected to film drawing, a product is put into a coagulating bath and then taken out; and the product is subjected to water washing, alcohol washing and drying to obtain the waterproof cellophane. An esterification reaction allows distances among wood fibers to be reduced, thus improving waterproofness of the cellophane. The modified emulsified liquid paraffin has large bond energy and is a hydrophobic group, thus facilitating waterproofness improvement. Crosslinking occurs during film drawing because of the existence of acrylic acid so that compactness of the liquid paraffin that is a surface protective film of the viscose is improved and cellulose in the cellophane hardly absorbs water through the compact protective film, and therefore waterproofness of cellulose is improved and the cellophane has a wide application prospect.
Owner:广东冠豪新材料研发有限公司 +1
Di-(2-hydroxyl isopropyl) benzene production method
ActiveCN102911014AReduce consumptionSimple processPreparation by oxygen reductionPublic projectBenzene
The invention relates to a di-(2-hydroxyl isopropyl) benzene production method which mainly solves the problems of long technical process and excessive public project consumption in the prior art. The technical scheme for better solving the problems includes that diisopropylbenzene oxidant solution containing di-(hydrogen peroxide isopropyl) benzene is used as a raw material to obtain the di-(2-hydroxyl isopropyl) benzene by means of reaction of the di-(hydrogen peroxide isopropyl) benzene and reducing agent, wherein the reaction temperature is 40-200 DEG C, the reaction pressure is 0.2-1.0MPa, the reducing agent is selected from at least one of sodium thiosulfate , potassium thiosulfate, potassium sulfide, potassium hydrosulfide, sodium sulfide or sodium hydrosulfide, and the weight ratio of the di-(hydrogen peroxide isopropyl) benzene to the reducing agent is (1-30):(1-20). The di-(2-hydroxyl isopropyl) benzene production method can be used for industrial production of di-(2-hydroxyl isopropyl) benzene.
Owner:CHINA PETROLEUM & CHEM CORP +1
Paddy rice soil heavy metal cadmium sustained-release passivating agent and use method thereof
InactiveCN107629802AImprove passivation effectThe passivation effect is long-lasting and stableOrganic fertilisersSoil-working methodsSodium BentoniteSoil heavy metals
The invention discloses a paddy rice soil heavy metal cadmium sustained-release passivating agent and a use method thereof, and belongs to the field of soil heavy metal pollution control. The paddy rice soil heavy metal cadmium sustained-release passivating agent comprises the following components in parts by mass: 10-15 parts of quick lime, 8-20 parts of an organic fertilizer, 80-125 parts of humic acid, 0.25-0.5 part of potassium thiosulfate, and 40-60 parts of bentonite. The use method comprises the steps: applying calcium oxide and the organic fertilizer to acid contaminated soil, adjusting the pH of the soil to 7.0-8.0, acting for 7-10 days, then adding humic acid, potassium thiosulfate and bentonite to the soil, and acting for 1-2 days, wherein crops can be planted on the obtained soil. The heavy metal cadmium sustained-release passivating agent has high passivation efficiency, has durable and stable sustained-release and passivation effects, and has the function of improving andenhancing soil fertilizer efficiency, and cannot cause secondary pollution; the used materials are low in cost, safe and reliable, and the paddy rice soil heavy metal cadmium sustained-release passivating agent has good social and environmental benefits.
Owner:四川长虹格润环保科技股份有限公司
Method for improve lubricating oil lubricity and thermal conductivity by utilizing graphene oxide
InactiveCN106167262AImprove the lubrication effectImprove thermal conductivityAdditivesFiltrationPotassium thiosulfate
The invention relates to a method for improve lubricating oil lubricity and thermal conductivity by utilizing graphene oxide. The method comprises a step 1) of sequentially adding potassium thiosulfate, phosphorus pentoxide and concentrated sulphuric acid into a flask, dissolving the raw material at 80 DEG C, adding graphite powder, and performing stirring at 80 DEG C; after the reaction is over, adding deionized water, finally using the deionized water to perform suction filtration many times, and performing drying at 50 DEG C; a step 2) of adding a pre-oxidized product into concentrated sulphuric acid, slowly adding potassium permanganate under ice-bath, reacting at 35 DEG C, slowly adding deionized water, finally pouring the product into the flask, and then adding deionized water and hydrogen peroxide; a step 3) of performing acid pickling on the product through hydrochloric acid, and using a dialysis bag to perform dialysis in the deionized water; a step 4) of performing mixed reaction of graphene oxide, ethyl alcohol and octadecylamine, using the ethyl alcohol to perform suction filtration and cleaning, and obtaining a final product after drying. According to the method, the lubricating oil lubricity and thermal conductivity are improved, the whole process is simple to operate and safe, and the effect is good.
Owner:SHANGHAI INST OF TECH
Effect improved compound fertilizer
ActiveCN104003809AIncrease profitInhibition of specific enzyme - urease activityFertilizer mixturesPhosphateN fertilizer
The invention discloses effect improved compound fertilizer. The effect improved compound fertilizer comprises, by part, 35-65.2 parts of urea with 46 percent of N, 8-40 parts of monoammonium phosphate with 10 percent of N and 50 percent of P2O5, 6.7-30 parts of potassium chloride with 60 percent of K2O or 8-30 parts of potassium sulphate with 50 percent of K2O, 0-15 parts of ammonium sulfate with 21 percent of N and 0.1-1 part of nitrogen controlled synergist (AHE). According to the AHE, the proportion of sodium tetraphenylborate, copper sulfate, zinc oxide, ammonium citrate and potassium thiosulfate is 3: 2: 2: 1: 2-3. The effect improved compound fertilizer reduces the hydrolysis rate of urea in the fertilizer, restrains the activity of nitrobacteria in soil, the 6-8 millesimal of AHE is added into the effect improved compound fertilizer, the nitrogen use efficiency reaches to 44 percent, the nitrogen use efficiency is improved by 23 percent, the nitrogen loss is reduced by 22.6 percent, and the crop is increased by 8-16 percent. One-time fertilize application is carried out in spring, and labor cost is saved.
Owner:赤峰杰翔复合肥有限公司
Anti-pollution and easily-washable polyamide reverse osmosis composite membrane and preparation method of membrane
The invention discloses an anti-pollution and easily-washable polyamide reverse osmosis composite membrane and a preparation method of the membrane. The method disclosed by the invention comprises the following steps: (1) sequentially washing a polyamide reverse osmosis composite membrane by using isopropanol and de-ionized water; (2) adding the washed polyamide reverse osmosis composite membrane, 4-(2-sulfoethyl)-1-(4-vinyl benzyl)pyridine glycine betaine, potassium thiosulfate, sodium hydrogen sulfite and de-ionized water into a container; introducing nitrogen and discharging oxygen in the container; and (3) sealing the container and carrying out reaction in a water bath. The method is simple and convenient, conditions are moderate and the environment-friendly effect is realized; the prepared anti-pollution and easily-washable polyamide reverse osmosis composite membrane has the strong anti-pollution capability; after being polluted, the surface of the membrane can be physically washed by changing the salt concentration of input water; an organic chemical washing agent is not needed; the durability of the membrane is improved; the cost is reduced and the service life of the membrane is prolonged.
Owner:TIANJIN POLYTECHNIC UNIV
Elective etching solution of nickel or nickel alloy, and preparation method and application thereof
The invention discloses elective etching solution of nickel or nickel alloy, and a preparation method and application thereof. The etching solution is prepared from the following ingredients in parts by weight: ferric trichloride, ferric trifluoroacetylacetonate, sulfamic acid, hexanedioic acid, gamma-3-aminopropyltriethoxysilane, potassium thiosulfate, hydrofluoric acid, imidazoline ammonium salt and deionized water. The etching solution provided by the invention has a proper etching speed for the nickel or nickel alloy, hardly corrodes copper, and is high in selectivity. In addition, an etched copper plate has a light surface, is free from sediments, is smooth and is free from lateral erosion.
Owner:江苏和达电子科技有限公司
PCB silver electroplating solution containing compound sulfonate brightening agent
The invention relates to a PCB silver electroplating solution containing a compound sulfonate brightening agent. The PCB silver electroplating solution includes 45 g / L to 55 g / L of silver nitrate, 150g / L-240 g / L of potassium thiosulfate and 55 g / L to 80 g / L of potassium metabisulfite. The compound sulfonate brightening agent is divided into a component A and a component B, wherein the component Ais sodium sulfonate containing benzothiazole end groups, and the component B is sulfonate containing -N-C(=S)-S-groups. By means of the PCB silver electroplating solution containing the compound sulfonate brightening agent, the brightening agent combination with the specific groups is creatively adopted, the surface gloss is obviously improved, and the brightening agent combination is matched with applicability of cyanide-free system silver plating in a circuit board.
Owner:FOSHAN RENCHANG TECH
Oxidation process for producing potassium thiosulfate
ActiveUS9988270B2Prevent and reduce furtherClimate change adaptationThiosulfates/dithionites/polythionitesHigh concentrationPotassium
An efficient process for preparation of potassium thiosulfate (K2S2O3) is described. Potassium hydroxide (KOH) and elemental sulfur (S) are converted to potassium polysulfide, which is subsequently oxidized. The process allows using specifically designed process conditions such as mole ratios of potassium hydroxide to sulfur, and temperature, to obtain an optimized formulation of desired polysulfide, and a specifically designed set of conditions such as temperature, pressure, rate and duration of the oxidant during the oxidation conditions, to obtain a relatively high concentration of soluble potassium thiosulfate product with high purity, with relatively low amounts of byproducts. The manufacturing process can either be a batch process or a continuous process utilizing Continuous Stirred Tank Reactors (CSTR). The CSTR process is dependent on several design parameters, including pressure, and temperature optimization to avoid product instability. The resulting potassium thiosulfate is a beneficial fertilizer with high potassium content as a 50% liquid source of potassium.
Owner:TESSENDERLO KERLEY INC
Antibacterial gel and production technology thereof
InactiveCN111467482AEasy to cleanProcess clarificationPeptide/protein ingredientsAerosol deliveryBiotechnologyThio-
The invention discloses antibacterial gel. The antibacterial gel is prepared from the following components in percentages by weight: 0.8% of carbomer, 0.3% of a turmeric extract, 2% of hydrolyzed collagen, 2% of biosaccharide gum-1, 0.1% of methylparaben, 6% of glycerin, 5% of propylene glycol, 2% of a lactic acid bacteria fermentation product, 0.2% of potassium thiosulfate, 0.5% of a chamomile extract, 0.2% of benzalkonium bromide, 1% of caramel color, 0.001% of keratin, 0.001% of an angelica sinensis extract, 0.001% of a hairyvein agrimony extract, 0.001% of a poria cocos extract, 0.02% of avetiver root oil, 0.001% of a motherwort extract, 0.001% of a fructus cnidii extract, 0.001% of astaxanthin. 0.001% of a sculellaria barbata extract, 0.8% of triethanolamine and 79.072% of water. Theantibacterial gel is suitable for bacteriostasis of female pudendum discomfort, has a good cleaning and nursing effect, is relatively clear in overall process, is suitable for corresponding people toabsorb, has no side effect, has overall beneficial functions in the aspect of effect, and is high in safety.
Owner:成都聚源合生物科技有限公司
Magnesium thiosulfate as ozone and chlorine quencher
InactiveUS20060104876A1Avoid undesirable scaling and sulfate depositsOxygen/ozone/oxide/hydroxideUsing liquid separation agentAir filterWastewater
In one aspect, ozone is quenched from a water stream, such as a drinking water or wastewater stream being treated with ozone, by contacting the stream with magnesium thiosulfate. In another aspect, a method of scrubbing ozone from a gaseous stream comprises contacting the gaseous stream with magnesium thiosulfate. In an alternative embodiment, chlorine is quenched from a water stream by contacting the stream with magnesium thiosulfate or potassium thiosulfate. In yet another aspect, a method of scrubbing chlorine from a gaseous stream comprises contacting the stream with magnesium thiosulfate or potassium thiosulfate. In another embodiment, a thiosulfate, such as magnesium thiosulfate, calcium thiosulfate, potassium thiosulfate, or sodium thiosulfate, is provided on an air filter for scrubbing ozone or chlorine from gaseous streams.
Owner:TESSENDERLO KERLEY INC
Special drip irrigation fertilizer for potatoes containing nitrification inhibitor and preparation method thereof
InactiveCN106631634ANo negative effectsGood water solubilityAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersSoil heavy metalsDrip irrigation
The invention discloses a special drip irrigation fertilizer for potatoes containing a nitrification inhibitor. The special drip irrigation fertilizer is prepared from the following raw materials in parts by weight: 43-63 parts of urea, 9-15 parts of ammonium nitrate, 11-17 parts of monopotassium phosphate, 8-18 parts of nitrification inhibitor, 13-19 parts of reaction promoter, 7-13 parts of accessories and 4-8 parts of additive. A preparation method comprises the steps of raw material grinding, raw material mixing and stirring to obtain a finished product. The special drip irrigation fertilizer for potatoes containing a nitrification inhibitor contains multiple nutrients and can meet the need for multiple nutrients of potatoes; and since the raw materials of the drip irrigation fertilizer are added with potassium thiosulfate, plant growth regulator, herbicide and the like, by adopting the drip irrigation fertilizer in the potato cultivation process, the problem of heavy metal pollution of soil can be effectively solved, the planting environment can be improved, and the growth vigor of potatoes is enhanced.
Owner:GUIZHOU UNIV
Sulfur dioxide scrubbing system and process for producing potassium products
ActiveUS20170190575A1Gas treatmentThiosulfates/dithionites/polythionitesPotassium peroxideOxidation state
The invention relates to a process for preparing potassium thiosulfate, potassium sulfite or potassium bisulfite comprising the following steps:Step (1a): providing a potassium hydroxide or potassium carbonate solution for neutralizing acid forming components such as dissolving SO2 or H2S;Step (1b): providing an SO2 contacting solution, containing at least some potassium sulfite or potassium bisulfite or potassium thiosulfate;Step (2): providing SO2 gas;Step (3): reacting these to absorb the SO2 gas and to form an intermediate reaction mixture comprising potassium sulfite, or potassium bisulfite or a mixture thereof, and optionally recovering the potassium sulfite, or potassium bisulfite or a mixture thereof, and / or optionally using steps 4 and 5;Step (4): adding sulfur or sulfide containing compound containing sulfur having the oxidation state of 0, −2 or of between 0 and −2 to the reaction mixture and optionally potassium hydroxide or potassium carbonate, and reacting the mixture under suitable conditions to form potassium thiosulfate; andStep (5): recovering the potassium thiosulfate, and optionally concentrating the potassium thiosulfate.
Owner:TESSENDERLO KERLEY INC
A kind of preparation method of waterproof cellophane
The invention relates to the technical field of packaging paper, and particularly relates to a method for preparing waterproof cellophane. Emulsified paraffin and an acrylic acid monomer are subjectedto an emulsification reaction initiated by potassium thiosulfate to obtain modified emulsified liquid paraffin; bagasse is subjected to alkalization and yellowing to obtain cellulose viscose; after the cellulose viscose and the modified emulsified liquid paraffin are mixed and subjected to film drawing, a product is put into a coagulating bath and then taken out; and the product is subjected to water washing, alcohol washing and drying to obtain the waterproof cellophane. An esterification reaction allows distances among wood fibers to be reduced, thus improving waterproofness of the cellophane. The modified emulsified liquid paraffin has large bond energy and is a hydrophobic group, thus facilitating waterproofness improvement. Crosslinking occurs during film drawing because of the existence of acrylic acid so that compactness of the liquid paraffin that is a surface protective film of the viscose is improved and cellulose in the cellophane hardly absorbs water through the compact protective film, and therefore waterproofness of cellulose is improved and the cellophane has a wide application prospect.
Owner:广东冠豪新材料研发有限公司 +1
Oxidation process for producing potassium thiosulfate
ActiveUS20170190576A1Prevent and reduce furtherClimate change adaptationThiosulfates/dithionites/polythionitesHigh concentrationInstability
An efficient process for preparation of potassium thiosulfate (K2S2O3) is described. Potassium hydroxide (KOH) and elemental sulfur (S) are converted to potassium polysulfide, which is subsequently oxidized. The process allows using specifically designed process conditions such as mole ratios of potassium hydroxide to sulfur, and temperature, to obtain an optimized formulation of desired polysulfide, and a specifically designed set of conditions such as temperature, pressure, rate and duration of the oxidant during the oxidation conditions, to obtain a relatively high concentration of soluble potassium thiosulfate product with high purity, with relatively low amounts of byproducts. The manufacturing process can either be a batch process or a continuous process utilizing Continuous Stirred Tank Reactors (CSTR). The CSTR process is dependent on several design parameters, including pressure, and temperature optimization to avoid product instability. The resulting potassium thiosulfate is a beneficial fertilizer with high potassium content as a 50% liquid source of potassium.
Owner:TESSENDERLO KERLEY INC
Sulfur dioxide scrubbing system and process for producing potassium products
ActiveUS10005667B2Gas treatmentThiosulfates/dithionites/polythionitesOxidation statePotassium hydroxide
The invention relates to a process for preparing potassium thiosulfate, potassium sulfite or potassium bisulfite comprising the following steps:Step (1a): providing a potassium hydroxide or potassium carbonate solution for neutralizing acid forming components such as dissolving SO2 or H2S;Step (1b): providing an SO2 contacting solution, containing at least some potassium sulfite or potassium bisulfite or potassium thiosulfate;Step (2): providing SO2 gas;Step (3): reacting these to absorb the SO2 gas and to form an intermediate reaction mixture comprising potassium sulfite, or potassium bisulfite or a mixture thereof, and optionally recovering the potassium sulfite, or potassium bisulfite or a mixture thereof, and / or optionally using steps 4 and 5;Step (4): adding sulfur or sulfide containing compound containing sulfur having the oxidation state of 0, −2 or of between 0 and −2 to the reaction mixture and optionally potassium hydroxide or potassium carbonate, and reacting the mixture under suitable conditions to form potassium thiosulfate; andStep (5): recovering the potassium thiosulfate, and optionally concentrating the potassium thiosulfate.
Owner:TESSENDERLO KERLEY INC
Special drip irrigation fertilizer for hot pepper containing urease inhibitor and preparation method thereof
InactiveCN106631470AGood water solubilityGrow fastAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersGrowth plantHot peppers
The invention discloses a special drip irrigation fertilizer for hot pepper containing a urease inhibitor. The special drip irrigation fertilizer is prepared from the following raw materials in parts by weight: 41-61 parts of urease inhibitor, 7-13 parts of ammonium nitrate, 9-15 parts of monopotassium phosphate, 11-17 parts of reaction promoter, 5-11 parts of accessories and 2-6 parts of additive. A preparation method comprises the steps of raw material grinding, raw material mixing and stirring to obtain a finished product. The special drip irrigation fertilizer for hot pepper containing a urease inhibitor contains multiple nutrients and can meet the need for multiple nutrients of hot pepper; and since the raw materials of the drip irrigation fertilizer are added with potassium thiosulfate, plant growth regulator, herbicide and the like, by adopting the drip irrigation fertilizer in the hot pepper cultivation process, the problem of heavy metal pollution of soil can be effectively solved, the planting environment can be improved, and the growth vigor of hot pepper is enhanced.
Owner:GUIZHOU UNIV
Ecological remediation method for soil contaminated by multiple sorts of heavy metal and application thereof
InactiveCN107497847AReduce and eliminate solubilityReduce and eliminate biological activityContaminated soil reclamationSolubilitySoil heavy metals
The invention discloses an ecological remediation method for soil contaminated by multiple sorts of heavy metal and an application thereof, and belongs to the field of environmental protection. The method is implemented through the following steps that according to the mass percentage, 0.1%-3% of sulfur powder, 0.1% of potassium sulfite, 0.1%-5% of potassium thiosulfate, 2%-30% of straw, 1%-30% of calcium polysulfides and the like are added into the soil contaminated by the multiple sorts of the heavy metal at the same time; the pH is adjusted to be 5-7, the soil water content is kept to reach 60%-100%, and the soil is evenly stirred thoroughly; the periphery of the soil is covered with a plastic film to be sealed, or the soil is contained in a ceramic or plastic container to be covered; and overturning and stirring are conducted once about every week; and after stirring lasts for 3-5 times, the multiple sorts of the heavy metal like Pb, Cd, Cr, Cu, Ni, Mn, Hg, Ag, Fe and Zn in the contaminated soil can be mostly solidified and deposited (the solidification rate reaches 99% or above). Therefore, leaching of the heavy metal is reduced, the biological activity and solubility of the heavy metal are also reduced, heavy metal pollution of the soil is eliminated, and the environment can be protected.
Owner:吴洪生
Soil-hardening-preventing special drip fertilizer for eggplants and preparation method of soil-hardening-preventing special drip fertilizer
InactiveCN106631466ANo negative effectsFixedMagnesium fertilisersAlkali orthophosphate fertiliserPhosphateSoil heavy metals
The invention discloses a soil-hardening-preventing special drip fertilizer for eggplants. The drip fertilizer is prepared from the following raw materials in parts by weight: 45-65 parts of urea, 11-17 parts of ammonium nitrate, 13-19 parts of potassium dihydrogen phosphate, 10-20 parts of sulfate, 15-21 parts of a reactive assistant, 9-15 parts of an auxiliary material and 6-10 parts of an additive; the preparation method comprises the following steps: crushing the raw materials, mixing the raw materials, stirring, and preparing a finished product. The soil-hardening-preventing special drip fertilizer for the eggplants contains a variety of nutrients, and thus can meet needs of the eggplants on the variety of nutrients; meanwhile, the potassium thiosulfate, a plant growth regulator, a weedicide and the like are added into the raw materials of the drip fertilizer, so that when the drip fertilizer is used in the eggplant cultivating process, the drip fertilizer can not only solve the problem of heavy metal pollution to soil effectively, but also achieve the advantages of improving the planting environment and improving the growth vigor of the eggplants.
Owner:GUIZHOU UNIV
Carrot special drip irrigation fertilizer rich in nitrogen, phosphorus and potassium, and preparation method thereof
InactiveCN106748173ANo negative effectsGood water solubilityMagnesium fertilisersAlkali orthophosphate fertiliserAdditive ingredientDrip irrigation
The invention discloses a carrot special drip irrigation fertilizer rich in nitrogen, phosphorus and potassium. The carrot special drip irrigation fertilizer is prepared from the following raw materials in parts by weight: 44-64 parts of urea, 10-16 parts of ammonium nitrate, 12-18 parts of monopotassium phosphate, 9-19 parts of sulfate, 14-20 parts of reaction auxiliaries, 8-14 parts of auxiliary materials, and 5-9 parts of additives. The preparation method comprises the following steps: crushing raw materials, mixing the raw materials, and stirring the mixture to obtain a finished product. The carrot special drip irrigation fertilizer rich in nitrogen, phosphorus and potassium contains multiple nutritional ingredients and is capable of meeting the demands of carrots to multiple nutrients. Since potassium thiosulfate, plant growth regulators, herbicides and other raw materials are added in the raw materials of the drip irrigation fertilizer, the drip irrigation fertilizer not only can effectively solve the heavy metal pollution problem of the soil in the cultivation process of the carrots, but also can achieve the advantages of improving the planting environment and improving the growth vigor of the carrots.
Owner:GUIZHOU UNIV
A kind of selective etching liquid of nickel or nickel alloy and its preparation method and application
The invention discloses elective etching solution of nickel or nickel alloy, and a preparation method and application thereof. The etching solution is prepared from the following ingredients in parts by weight: ferric trichloride, ferric trifluoroacetylacetonate, sulfamic acid, hexanedioic acid, gamma-3-aminopropyltriethoxysilane, potassium thiosulfate, hydrofluoric acid, imidazoline ammonium salt and deionized water. The etching solution provided by the invention has a proper etching speed for the nickel or nickel alloy, hardly corrodes copper, and is high in selectivity. In addition, an etched copper plate has a light surface, is free from sediments, is smooth and is free from lateral erosion.
Owner:江苏和达电子科技有限公司
Polyester potassium thiosulfate enzyme active fertilizer produced by utilizing organic wastes
InactiveCN110903139AImprove filtration efficiencyReduce pollutionProductsBio-organic fraction processingPolyesterNicotiana tabacum
The invention discloses a polyester potassium thiosulfate enzyme active fertilizer produced by utilizing organic wastes. The formula comprises mixed animal manure, tobacco residues, mixed animal oil,straw, bagasse, a mildewed feed and a composite strain, wherein the composite strain is formed by compounding streptomyces brown thermophilus, Thermoactinomyces vulgaris, sporeless bacterium, bacillusand mould according to the ratio of (1-2): (1-2): (1-2): (1-2): (1-2): (1-2); wherein the mixed animal manure is composed of horse manure, chicken manure, pig manure, sheep manure and cow manure according to a composition ratio of 3-5: 3-5: 1-2: 3-5: 1-2: 3-4; the invention discloses the polyester potassium thiosulfate enzyme active fertilizer produced by utilizing the organic wastes. According to the method, various animal manure is mixed, the tobacco residues, mixed animal oil, straw, bagasse and mildewed feed are added, organic waste rich in stock is greatly utilized, pollution during traditional treatment is reduced, meanwhile, mixed strains are high in fermentation efficiency, the cost is reduced, the fermentation period is short, the fertilizer is rich in various elements, and the fertilizer efficiency is improved.
Owner:肖守成 +1
Detection method of lead ion
ActiveCN102368053BQuick checkEasy to operateMaterial analysis by observing effect on chemical indicatorPreparing sample for investigationColor changesPotassium thiosulfate
The invention relates to a detection method of a lead ion. The method is characterized by comprising the steps of: adding a chloroauric acid water solution into deionized water, adding a cationic surfactant water solution under magnetic stirring, then slowly adding a newly prepared reductant water solution dropwisely, conducting magnetic stirring for 30min under room temperature, thus obtaining a surfactant modified Au nanoparticle detection liquid; taking two parts of the detection liquid in an equivalent amount; adding two parts of a thiosulfate water solution of an equivalent volume into the two detection liquids respectively, and shaking them uniformly so as to obtain a first mixed solution and a second mixed solution; adding ultrapure water and a solution to be detected in an equivalent volume into the first mixed solution and the second mixed solution respectively, mixing them well so as to form a third mixed solution and a fourth mixed solution; comparing the color change of the third mixed solution and the fourth mixed solution so as to determine whether existing a lead ion in the detected solution. The thiosulfate can be sodium hyposulfite or potassium thiosulfate. The method provided in the invention has the advantages of simple, convenient and rapid operation, low detection cost, small sampling amount and wide application scope.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
A kind of anti-pollution and easy-to-clean polyamide reverse osmosis composite membrane and preparation method thereof
Owner:TIANJIN POLYTECHNIC UNIV
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