267 results about "Potassium bicarbonate" patented technology

The invention describes a pharmaceutical composition and method for treating cancer comprised of A) 2,3-dimethoxy-5-methyl-1,4-benzoquinone and / or B) at least one of wild yam root, teasel root, balm of gilead bud, bakuchi seed, dichroa root, kochia seed, kanta kari, bushy knotweed rhizome, arjun, babul chall bark, opopanax and bhumy amalaki; optionally one or more of frankincense, garcinia fruit, vitex, dragons blood, mace, sage and red sandalwood with at least c) one compound capable of maximizing oxidative mitochondrial function preferably riboflavin or vitamin B2 derivatives, FAD, FMN, 5-amino-6-(5′-phosphoribitylamino)uracil, 6,7-Dimethyl-8-(1-D-ribityl)lumazine, ribitol, 5,6-dimethylbenzimidazole, tetrahydrobiopterin, vitamin B1, lipoic acid, biotin, vitamin B6, vitamin B12, folate, niacin, vitamin C and pantothenate and / or d) at least one lactic acid dehydrogenase inhibitor (preferably 2′,3,4′5,7-pentahydroxyflavone) and optionally f) an alkalizing agent (aloe vera, chlorella, wheat grass, sodium or potassium bicarbonate, potassium) g) an antiproliferative herb (speranskia or goldenseal) and h) a pharmaceutically acceptable carrier.

The invention discloses a baicalin metal complex of which the molecular formula is (C21H17O11) xM (H2O) y, wherein M in the formula is Cu (II), x is 1 and y is 2; or M is Fe (III), x is 2 and y is 0; or M is La (III) or Y (III), x is 3 and y is 0. The preparation method comprises the following steps: adding aqueous alkali into baicalin until the baicalin and alkali (sodium bicarbonate, potassium bicarbonate, sodium formate, potassium formate, sodium acetate, potassium acetate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, sodium phosphate or potassium phosphate) are just completely reacted, then adding metal salt (copper salt, ferric salt, lanthanum salt or yttrium salt) for reaction to obtain the baicalin metal complex. The baicalin metal complex has obviously stronger antibacterial and antitumor activities than the baicalin, can be used for preparing antibacterial drugs and antitumor drugs, and has good development and application prospects. In the preparation method, an organic solvent is not used, a strong basic condition is not adopted, and the method is simple and feasible, is green and environment-friendly and has the advantages of low cost, high product purity and high yield.

The invention relates to a cyanide-free gold electroplating solution and an electroplating process using the same. The solution contains 180-200 g / L of a main coordination agent, 5-8 g / L of an auxiliary coordination agent, 20-30 g / L of potassium bicarbonate, 0.5-0.8 g / L of potassium gold chloride and 0.5-5 mL / L of a combined additive. The cyanide-free gold electroplating system solution is good in stability, dispersing capacity and covering capacity and high in current efficiency, a plating layer is flat and compact in crystallization and golden yellow and bright in appearance, the applied current density range is wide, the temperature requirement range is wide, the system can meet the requirement of long-term thick gold electroplating, and problems that the plating layer turns red, floating dust exists and the like are solved with the increase of the thickness of the plating layer during electroplating.

The invention relates to a preparation method of active carbon using tea residue, which comprises the following steps of: drying 1,000g of tea residue and grinding; steeping in 30-50% alkaline solution of which the mass is 3-5 times that of the tea residue for 24-48 hours; heating to a carbonization temperature of 800-1,000 DEG C at a heating rate of 50 DEG C per minute, and preserving heat for 10 minutes; after the carbonization, rinsing with hot water at 80 DEG C; after the rinsing, adjusting the pH value of the material to neutrality; and drying and grinding to obtain active carbon, wherein the alkaline solution is sodium carbonate, sodium bicarbonate, potassium bicarbonate, potassium tartrate and the like. The preparation method provided by the invention has the beneficial effects that active carbon can be prepared conveniently and easily, resource waste is avoided, and environment is protected.

The invention discloses a deodorizing spray and making method, which comprises the following parts: 3-88ppm sodium bicarbonate or potassium bicarbonate and zinc sulfate, 0.36-4ppm plant surface activator, 0.1-3ppm starch derivant, 0.05-1ppm plant incense material and water. The making method comprises the following steps: allocating sodium bicarbonate or potassium bicarbonate and zinc sulfate into condensed amphiprotic material solution; blending plant surface activator, starch derivant and plant incense material through distilled water completely to form viscous organic solution; mixing amphiprotic material solution and organic solution to make spray reserving liquid; diluting through tap water.

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.

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.

A sprayable cookware release composition includes an oil, a propellant, and a cookware release agent having lecithin treated with an alkali and a fatty acid at the same time or treated with a mixture of an alkali and a fatty acid. A variety of alkali and fatty acids can be used to treat the lecithin, including more than one alkali and more than one fatty acid. Suitable alkali for treating the lecithin include sodium and potassium sorbate, sodium and potassium carbonate, sodium and potassium bicarbonate, sodium and potassium acetate, sodium and potassium hydroxide, and mixtures thereof. Suitable fatty acids for treating the lecithin include oleic acid, linoleic acid, palmitic acid, stearic acid, and mixtures thereof. The cookware release agent and oil are mixed, and the mixture is dispensed from the aerosol container by the propellant. Suitable cookware release agents include lecithin and variants thereof, such as oil soluble lecithin, water-dispersible lecithin, hydroxylated lecithin, lyso-phopholipid, or a mixture thereof.

A sprayable cookware release composition includes an oil, a propellant, and a cookware release agent having lecithin treated with an alkali and a fatty acid at the same time or treated with a mixture of an alkali and a fatty acid. A variety of alkali and fatty acids can be used to treat the lecithin, including more than one alkali and more than one fatty acid. Suitable alkali for treating the lecithin include sodium and potassium sorbate, sodium and potassium carbonate, sodium and potassium bicarbonate, sodium and potassium acetate, sodium and potassium hydroxide, and mixtures thereof. Suitable fatty acids for treating the lecithin include oleic acid, linoleic acid, palmitic acid, stearic acid, and mixtures thereof. The cookware release agent and oil are mixed, and the mixture is dispensed from the aerosol container by the propellant. Suitable cookware release agents include lecithin and variants thereof, such as oil soluble lecithin, water-dispersible lecithin, hydroxylated lecithin, lyso-phopholipid, or a mixture thereof.

The invention relates to a composites foaming agent, which comprises inorganic foaming agent as bicarbonate and molecule screen, while the amount of molecule screen is 0.5-50 deals when the bicarbonate is 100 deals, wherein the bicarbonate can use baking soda, potassium acid carbonate, or ammonium acid carbonate or the mixture of them; and the preparation comprises: selecting the bicarbonate; breaking with machine or airflow; then mixing the inorganic foaming agent with molecule screen in the mixer; the invention has the advantages that: 1, it has better flow property and disperse property; it can effectively increase the foaming time and the contract rate of product; 3, it can foam the macromolecule polymer that sensitive to water; 4, the added macromolecule screen will not affect the property of macromolecule polymer.

The invention discloses a preparation method and application of a nitrogen-doped peel based porous carbon material. According to the method, waste peel is used as biomass raw materials; through an ultrasound method, the waste peel and a nitrogen source are pretreated; at low-temperature, the materials are pre-carbonized into nitrogen-doped peel based carbon; then, potassium bicarbonate is used asan activating agent for activation at high temperature; finally, through treatments of acid washing, water washing, drying and the like, the preparation of a nitrogen-doped peel based porous carbon super capacitor electrode material with high specific surface area, good pore diameter distribution and certain nitrogen content is realized. The prepared super capacitor material has excellent electrochemical performance which is shown in aspects of high specific capacitance, high energy density, good circulation stability and the like. In addition, the method does not relate to the use of strong basic or strong acidic or toxic activating agents; the preparation method is low in cost and achieves the environment-friendly effects.

Formula of the restoring agent includes following materials and mass percent: potassium sulfate 3-9%; sodium sulfate 4-8%; potassium bicarbonate 0.5-2%; potassium carbonate 1-3%; sodium silicate 0.2-0.8%; potassium acid phthalate 0.015-0.06%; aluminum powder 0.005-0.02 etc and deionized water as surplus. Using quite active metallic ions in the restoring agent to replace quite inert lead ions in crystal of lead sulfate, the method ionizes and hydrolyzes lead sulfate to the sulfate ions and lead ions, which take part in normal electrochemical reaction of lead acid battery again. At the same time, matter in the restoring agent together with quite active metallic ions, which accomplishes replacement, forms stable salt so as to reduce self-discharge inside battery caused by harmful metal ions to retain capacity for long time. The invention restores capacity of accumulator effectively, and lightens environmental pollution from old accumulators.

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.

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.

The invention discloses a preparation method of porous tea residue biochar with a high specific surface area, and belongs to the field of resource reutilization of product processing wastes. Potassiumbicarbonate is used as a modifier. The method comprises the steps: washing tea residues with hot water, drying and crushing; secondly, carrying out hydro-thermal treatment on the tea residues; dryinga tea residue hydrothermal carbon solid after hydrothermal treatment; then soaking and uniformly mixing the hydrothermal carbon and potassium bicarbonate; after drying, putting the mixture into a tubular muffle furnace for pyrolysis; and carrying out acid washing, water washing, drying and ball milling on the carbonized product after pyrolysis to obtain the tea residue biochar, wherein the prepared tea residue biochar has a developed pore structure and a large specific surface area, the specific surface area is 1278-1405 m<2> / g, and the pore volume is 0.6734-0.8067 cm<3> / g. The tea residue biochar has a good removal effect on tetracycline in a water body, and the adsorption capacity of the tea residue biochar on tetracycline in the water body can reach 429-478 mg / g.

The invention belongs to the technical field of catalysts, and specifically relates to preparation of a nano palladium based catalyst, and an application of the catalyst in a hydrogen storage circulation system taking formate as the basis. In the catalytic system, nitrogen modified mesoporous carbon is taken as the carrier, and nano level precious metal palladium is taken as the active component and has a mass percentage of 5%. The catalyst can effectively decompose a potassium formate solution to generate hydrogen in the absence of additives and is capable of catalyzing the hydrogenation of potassium bicarbonate, the stability is good, and the catalyst can also be applied to a hydrogen storage circulation system on the basis of formate.

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.

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.

The present invention relates to systems and methods for cleaning materials, such as flooring and upholstery. In some cases, the systems and methods use an electrolytic cell to electrolyze a solution comprising sodium carbonate, sodium bicarbonate, sodium acetate, sodium percarbonate, potassium carbonate, potassium bicarbonate, and / or any other suitable chemical to generate electrolyzed alkaline water and / or electrolyzed oxidizing water. In some cases, the cell comprises a recirculation loop that recirculates anolyte through an anode compartment of the cell. In some cases, the cell further comprises a senor and a processor, where the processor is configured to automatically change an operation of the cell, based on a reading from the sensor. In some cases, a fluid flows past a magnet before entering the cell. In some additional cases, fluid from the cell is conditioned by being split into multiple conduits that run in proximity to each other. Additional implementations are described.

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.

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.

The present invention relates to systems and methods for cleaning materials, such as flooring and upholstery. In some cases, the systems and methods use an electrolytic cell to electrolyze a solution comprising sodium carbonate, sodium bicarbonate, sodium acetate, sodium percarbonate, potassium carbonate, potassium bicarbonate, and / or any other suitable chemical to generate electrolyzed alkaline water and / or electrolyzed oxidizing water. In some cases, the cell comprises a recirculation loop that recirculates anolyte through an anode compartment of the cell. In some cases, the cell further comprises a sensor and a processor, where the processor is configured to automatically change an operation of the cell, based on a reading from the sensor. In some cases, a fluid flows past a magnet before entering the cell. In some additional cases, fluid from the cell is conditioned by being split into multiple conduits that run in proximity to each other. Additional implementations are described.

The invention relates to the technical field of potassium dihydrogen phosphate preparation, and especially relates to a method for preparing potassium dihydrogen phosphate from wet phosphoric acid. The method is characterized in that a two-step reaction of wet phosphoric acid is carried out to prepare potassium dihydrogen phosphate, and the method comprises the following steps: reacting wet phosphoric acid with ammonia water, adjusting the pH value of the above obtained slurry to 3.0-7.0 to remove Fe, Al and other cations and F, Si and other anion impurities from the wet phosphoric acid in order to purify wet phosphoric acid, reacting the purified ammonium dihydrogen phosphate slip with potassium hydroxide or potash or potassium bicarbonate, and carrying out evaporation crystallization under a vacuum degree of 0-0.01MPa at a temperature of 85-95DEG C to prepare high-quality potassium dihydrogen phosphate with the purity of 98.3-98.8%.

A polishing composition contains colloidal silica, potassium hydroxide, potassium bicarbonate, and water. The content of colloidal silica in the polishing composition is 2 % by mass or more. The average particle size of secondary particles of colloidal silica included in the polishing composition is preferably 60 nm or less. The polishing composition is suitable for use in polishing a semiconductor substrate.

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.

The invention relates to a feed additive for slowly decreasing adverse effect on pork quality caused by transportation and slaughtering stress; the feed additive comprises magnesium aspartate, magnesium sulfate, calcium chloride, calcium propionate, organic selenium, vitamin E, glucose, sodium bicarbonate and potassium bicarbonate. The feed additive adopts a nutrition method to slowly decrease the pork quality caused by transportation and slaughtering stress, the main nutrition addition ingredients choose essential nutrition ingredients which can effectively regulate a pig organism oxidation and antioxidant balance system, a neuroendocrine system, a glycometabolism system and an acid base balance system, the stress can be slowly decreased effectively, the incidence rate of low-quality pork is reduced, and the pork quality is improved. By adding the feed additive at different weight phases of growing-finishing pigs, the incidence rate of low-quality pork is obviously lower than that of a group which is not added with the feed additive, and the pork quality is obviously higher than that of the group which is not added with the feed additive, thereby greatly improving the economic benefit of raising farms and packinghouses.

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.

The invention provides an esomeprazole pharmaceutical composition with stronger acid resistance and a preparation thereof. The esomeprazole pharmaceutical composition comprises esomeprazole, one or more antacids and common pharmaceutical adjuvants, wherein the esomeprazole comprises esomeprazole salt, particularly esomeprazole magnesium salt and esomeprazole lithium salt; and the antacids comprise sodium bicarbonate, sodium carbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, aluminum carbonate, magnesium carbonate, magnesium hydroxide, magnesium oxide, aluminium hydroxide, magnesium aluminum carbonate and the like. The preparation of the esomeprazole pharmaceutical composition is prepared by adding the antacids via interior addition and exterior addition; and in an optimized preparation method, the weight ratio of the antacids in the interior addition and the exterior addition is 2: 3, so that the antacids play double efficacies, the dosage of acid neutralization agent is reduced and the acid resisting effect is better.

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.

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.