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257 results about "Potassium bicarbonate" patented technology

This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood.

Water-culture flower nutrient solution concentrated effervescent tablet formula and preparation method thereof

The invention provides a formula for water-culture flower nutrient solution concentrated effervescent tablets and a preparation method thereof. The water-culture flower nutrient solution concentrated effervescent tablets comprise multiple nutrient substances required by plants, one or more insecticidal substances, one or more substances capable of generating gas when being in contact with water, one or more bactericidal substances, one or more trace element chelating agents, one or more plant growth regulators, one or more adhesives and one or more lubricating agents. The water-culture flower nutrient solution concentrated effervescent tablets have the advantages as follows: potassium bicarbonate capable of generating gas is directly used as the nutrient substance required by plants, and the insecticidal substances and plant growth regulators are added. The preparation method for the water-culture flower nutrient solution concentrated effervescent tablets comprises the following steps: drying required materials respectively, grinding dried materials into powder, granulating, drying, adding the adhesives and the lubricating agents, and pressing into fertilizer tablets. The effervescent tablets are specially developed according to small-sized green plants, adopt concentrated tablet design, are accurately and quantitatively compounded, and can be used after being directly put into water or watering cans. The water-culture flower nutrient solution concentrated effervescent tablets are manly used for meeting market demands of household gardening, office greening and indoor green plant culture. The conventional problems of inconvenience in application of large fertilizer and complex preparation are solved.
Owner:NANJING AGRICULTURAL UNIVERSITY

Synthetic method for aliphatic alpha-calcium picrolonate

A synthetic method for aliphatic alpha-calcium picrolonate comprises the following steps: 1. adding carbonyl group reactant in glycolylurea in the presence of catalytic accessory and water and heating, wherein the mol ration of the glycolylurea and the carbonyl group reactant is 1:1.2-1.4; the carbonyl group reactant is aldehyde compound or ketone compound; when aldehyde compound is adopted the catalytic accessory is potassium bicarbonate, and when ketone compound is adopted the catalytic accessory is ethanolamine; 2. cooling to the room temperature, regulating the pH valve to 7 and separating out the intermediate product; 3. filtering and washing the intermediate product; 4. stirring and refluxing the intermediate product and sodium hydroxide solution, wherein the mol ratio of the intermediate product and sodium hydroxide is 1:3-5; 5. regulating the pH value to 4-5, antiregulating the pH value to 7 with the sodium hydroxide solution, and evaporating to remove the moisture; 6. adding absolute methyl alcohol to extract for several times and filtering; 7. distilling to remove the methyl alcohol; and 8. adding de-ionized water and aqueous calcium chloride solution of equivalent amount and separating out alpha-calcium picrolonate. As massive subsidiary products are removed in the method, the calcium content in the prepared product can achieve the standard.
Owner:NANJING CHEM REAGENT

Novel method for comprehensively utilizing potassium feldspar

The invention discloses a novel method for comprehensively utilizing potassium feldspar. According to the method, NaOH-Na2CO3 is used for being mixed with sub-molten salt to decompose the potassium feldspar, and potassium feldspar decomposing mother liquid and kankrinite are obtained; the potassium feldspar decomposing mother liquid is subjected to carbonatation and filtration to obtain filter liquid containing potassium bicarbonate and salic filtering slag; filtering liquid is subjected to evaporation, crystallization and drying, and potassium carbonate can be obtained; meanwhile, the salic filtering slag is subjected to supplementing addition of KOH, Al(OH)3 and H2O for regulating the mixture ratio of the K2O/SiO2, the Al2O3/SiO2 and the H2O/SiO2; at a certain temperature, aging and crystallization are performed for a period of time; W molecular sieves are synthesized. The method has the characteristics that the decomposing temperature is low; the potassium ion dissolving rate is high; the decomposing mother liquid can be easily acidified; the product added value is high; the raw material utilization rate is high; no waste liquid and no waste slag are produced. The method conforms to the green production principle, and has good potential economic benefits.
Owner:FUJIAN NORMAL UNIV +1

Plastic gel material for preventing spontaneous combustion of coal

The invention provides a plastic gel material for preventing spontaneous combustion of coal. The plastic gel material for preventing spontaneous combustion of coal comprises water, a cross-linking agent, a toughening agent, a coagulant, an aggregate and a water glass, wherein the cross-linking agent (AlCit) is obtained by mixing a polymeric aluminium chloride solution and a citric acid solution ina certain ratio and then neutralizing the sodium hydroxide solution; the coagulant is potassium bicarbonate, sodium hydrogen carbonate, ammonium hydrogen carbonate, and one or more of sodium carbonate and glucono-delta-lactone (GDL); the toughening agent is one or more of pregelatinized starch, sodium alginate, carboxymethyl cellulose, and polyacrylamide; aggregate is fly ash or bentonite. The plastic gel material has better water retention, toughness and resistance properties, so that the problems of easy cracking and pulverization of the traditional inorganic silicon gel solid body after water loss is effectively solved, and the material cost is effectively reduced compared with the traditional gel. The plastic gel material can cover the surface of the burning coal body, significantly reducing the temperature of the fire source, the heat radiation and the amount of CO generated, and the fire extinguishing is stable, the re-ignition phenomenon does not occur. In addition, the plasticgel can adhere to the coal body cracks, achieving a good air leakage effect.
Owner:SHANDONG UNIV OF SCI & TECH

Method for preparing load type activated carbon from furfural residues and application of load type activated carbon

The invention discloses a method for preparing load type activated carbon from furfural residues and application of the load type activated carbon. The furfural residues are used as carbon sources, and pre-carbonization, activation, nanometer metal oxide impregnation and adsorption and recarbonization treatment are carried out on the furfural residues. The method particularly includes steps of S1,carbonizing the furfural residues at the temperatures of 250-300 DEG C in nitrogen atmosphere for 4-6 h; S2, carrying out activation, to be more specific, activating obtained black carbon residue, potassium hydroxide and potassium bicarbonate mixtures at the temperatures of 400-500 DEG C for 1-3 h, carrying out acid pickling on activation products until the PH (potential of hydrogen) of the activation products shows the activation products are neutral and carrying out drying at the temperatures of 60 DEG C; S3, carrying out loading, to be more specific, dispersing composite nanometer metal oxide in microcrystalline cellulose sol to obtain mixed coated sol, adding obtained activated carbon into the mixed coated sol, carrying out pressurization impregnation and adsorption for 1-3 h, carrying out dehydration and then carrying out carbonization again at the temperatures of 150-200 DEG C in nitrogen atmosphere for 1-2 h. The method and the application have the advantages that the nanometermetal oxide can be loaded in activated carbon structures by double means of sol coating and impregnation and adsorption, the method is high in loading and low in energy consumption, the nanometer metal oxide can be completely supported, composite structures can be further reinforced in recarbonization procedures, and the stability can be improved.
Owner:蚌埠越昇科技服务有限公司

Method for preparing 3-rosin amine-2-hydroxypropyl dimethyl benzyl ammonium chloride

A method for preparing 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride is a method for preparing a cationic active agent containing a rosin amine structure, belonging to the aspect of surfactant chemistry in the forest chemical field. At a temperature of between 10 and 150 DEG C, an acid-binding agent compounded by sodium carbonate, potassium carbonate, calcium carbonate, sodium bicarbonate, potassium bicarbonate, potassium hydroxide, sodium hydroxide, triethylamine, tripropyl amine and tributyl amine is loaded on a carrier consisting of aluminum oxide, silica gel and active carbon to form a solid which is used as a catalyst for catalyzing the reaction of rosin amine and quaternizing agent consisting of epoxy propyl dimethyl benzyl ammonium chloride and 3-chlorin-2-hydroxypropyl dimethyl benzyl ammonium chloride for 1 to 50 hours, and then the reactants are subjected to centrifugation or filtration, exsolution and composite solvent recrystallization to form a wet material of the 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride; and the wet material is dried for 1.0 to 48.0 hours at a temperature between 10 and 120 DEG C at a vacuum degree of 0.01 to 0.1MPa to form a product of the 3-rosin amino-2-hydroxypropyl dimethyl benzyl ammonium chloride mass percentage of which is more than 90 percent.
Owner:YANCHENG INST OF TECH

Fructus phyllanthi fermented wine capable of reducing blood fat and preparation method thereof

The invention relates to a fructus phyllanthi fermented wine capable of reducing blood fat and a preparation method thereof, and belongs to the technical field of food processing. The preparation method comprises the nine steps of juicing, clearing, primary fermentation, secondary fermentation, deacidification treatment, fining, ageing, cold stabilizing treatment and filling. According to the preparation method, a low temperature fermentation technology is adopted, a product obtained through fermentation is richer and more full in flavor, strong in fructus phyllanthi flavor, sweet in aftertaste and continuous in remaining taste, the alcoholic strength is 10-15 degrees, and potassium bicarbonate is used for replacing traditional calcium carbonate or calcium hydroxide in the production, so that the bitter taste is removed; moreover, the problems of precipitation and crystallization are solved, the wine body is clear, and the quality of the wine is improved. The fructus phyllanthi fermented wine obtained through production is obvious in nutrition and health care effects, is rich in an active substance SOD beneficial for the human body, and has the effects of removing free radicals, resisting oxidation and aging, delaying and the like. Moreover, the fructus phyllanthi fermented wine further has obvious effects of reducing blood fat and blood pressure, and is easy for popularization and application.
Owner:云南维多酒业有限公司

A special flame retardant fire extinguishing agent for coal mines

The invention discloses a flame-retarding fire extinguishing agent for coal mines, which is prepared from distilled water, 0.5 to 5 percent of propylene glycol, 67.5 to 76 percent of high-hydroscopicity resin, 5 to 9 percent of potassium ferricyanide, 6 to 11 percent of tripolycyanamide and 8 to 12 percent of potassium bicarbonate, wherein the pH value of the flame-retarding fire extinguishing agent is regulated to 6 to 8.5 by oxalic acid or acetic acid. After vacuum dehydration, the flame-retarding fire extinguishing agent for coal mines, which is in form of water absorbing gel, is obtained.The flame-retarding fire extinguishing agent is used by mixing with water according to a ratio of 1:(1,000-10,000). The gel like product formed by water absorbing gel containing the high-hydroscopicity resin and absorbed water has high water retaining performance under a high-temperature condition and has a very high heat capacity. The flame-retarding fire extinguishing agent can form a stable gel layer on the surface of an object so as to insulate a fire source from the air, prevent fire from spreading and consequently extinguish the fire. Compared with common water, the flame-retarding fireextinguishing agent has a lower flowing rate and a high viscosity; and the flame-retarding fire extinguishing agent not only can reduce the temperature of the surface of coal and but also can permeate into the inside of the coal to cool the coal and to prevent the coal from burning again, so that the fire extinguishing effect is enhanced.
Owner:ZHEJIANG WEILONG POLYMER MATERIAL

Two-step surface conditioning agent used before aluminum anodic oxidation dyeing and preparation and application thereof

The invention discloses a two-step surface conditioning agent used before aluminum anodic oxidation dyeing. The two-step surface conditioning agent comprises an alkaline surface conditioning agent andan acidic surface conditioning agent. The alkaline surface conditioning agent is one of a sodium bicarbonate solution, a potassium bicarbonate solution and an ammonia water solution, and the concentrations of the sodium bicarbonate solution, the potassium bicarbonate solution and the ammonia water solution are 5-50g/l; the acidic surface conditioning agent is prepared from, by mass parts, 20-70 parts of organic acid, 1-10 parts of corrosion inhibitor, 5-20 parts of inorganic salt and the balance deionized water. The acidic surface conditioning agent is diluted into 40-200 ml/l of working solution in use and the pH is adjusted to 1.2-2.5. Two-step surface conditioning can effectively prevent the undesirable phenomena of uneven dyeing, floating, corrosion spots and the like caused by residual acid introduced in the pretreatment and anodic oxidation processes of aluminum and aluminum alloy materials and aluminum-plastic composite materials and die-casting aluminum extruded aluminum composite material; meanwhile, the coloring speed can be increased by cleaning and arranging the oxide film holes so that the use of dyes is reduced or the dyeing time is shortened and the same dyeing effect is achieved.
Owner:HANGZHOU WIN WIN TECH CO LTD

Method for desulfurizing and recovering NOx with alkali liquor

The invention relates to a method for recovering NOx through desulfurization and denitrification, belongs to the field of processing of tail gas of a boiler, and particularly provides a method for absorbing SO2 and NOx in flue gas in an absorption tower through an alkaline absorbent, and analyzing and recovering NOx; SO2 is reacted to prepare sulfite or further prepare sulphate, so that the purpose of desulfurization is realized. The alkaline absorbent comprises sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate and compounding components thereof. The method disclosed by the invention has the benefits that (1) one device is used for dust removal, desulfurization and denitrification simultaneously, is small in occupied area, low in investment and low in operating cost; (2) the problem of recovering and utilizing NOx is solved, and the denitrification process is changed into a process for producing products with a high additional value, such as nitric acid; (3) a wet method is used for desulphurization and denitrification, the method has wide adaptability and is especially suitable for dust removal, desulfurization and denitrification of flue gas in a large number of small and medium boilers in China; (4) the main recovery product of sulfur is the sulfite, so that a space is provided for further utilization of by-products.
Owner:淮南市明月环保科技有限责任公司

Preparation method of all-pH fuel cell cathodic oxygen reduction electrocatalyst

The invention discloses a method for preparing a metal-free nitrogen-doped porous carbon material from waste biomass and an all-pH fuel cell cathodic oxygen reduction electrocatalyst. The method comprises taking agricultural fruit and vegetable waste such as papaya peel as the raw materials, potassium bicarbonate as the activator and melamine as the nitrogen source to perform nitrogen doping at arelatively low temperature of 300 DEG C and then carbon material activation at 900 DEG C, and then increasing the degree of graphitization; before second carbonization is implemented, performing grinding to improve the reaction activity and the nitrogen doping effectiveness; performing acid pickling and drying to obtain the metal-free nitrogen-doped porous carbon material. The metal-free nitrogen-doped porous carbon material can be applied as the all-pH fuel cell cathodic oxygen reduction electrocatalyst. The preparation method converts the low-cost agriculture fruit and vegetable waste into the high-value energy material. The metal-free nitrogen-doped porous carbon material is comparable in electrocatalytic performance with oxygen reduction Pt/C catalysts and high in resistance to methylalcohol and cycling stability and has a great potential application prospect in all-pH fuel cell cathodic oxygen reduction electrocatalysis.
Owner:CHINA UNIV OF MINING & TECH

Regulator for promoting growth of fruit tree flowers and preparation method of regulator

InactiveCN105254420ASignificant effect of promoting flower productionDwarfing effect is obviousFertilising methodsFertilizer mixturesShootGrowth promoting
The invention relates to a regulator for promoting growth of fruit tree flowers and a preparation method of the regulator, belongs to the technical field of fruit tree cultivation and aims to solve the problems of low yield of orchards in season and vigorously growing saplings, hormone residues on fruits and the like. The regulator for promoting the growth of the fruit tree flowers comprises components in parts by weight as follows: 1.2-1.8 parts of choline chloride, 0.6-0.9 parts of sodium bisulfite, 0.6-0.9 parts of potassium bicarbonate, 3.9-5.5 parts of paclobutrazol, 0.8-1.3 parts of uniconazole, 0.2-0.4 parts of 6-benzyladenine, 13.8-16.8 parts of monopotassium phosphate, 11.3-13.8 parts of zinc sulfate, 15.9-19.4 parts of boric acid, 2.4-3.7 parts of ammonium molybdate and 0.6-0.8 parts of a wetting dispersant. A preparation process of the regulator for promoting the growth of the fruit tree flowers is simple, low in cost and convenient to use, the regulator has remarkable shoot controlling, flower growth promoting and yield increasing effects, the hormone residues on the fruits are reduced effectively, the regulator has better social and economic benefits and has wide application prospect in open-ground cultivation, facility cultivation and potting cultivation of various fruit trees.
Owner:CHONGQING ACAD OF AGRI SCI
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