11766 results about "Sodium bicarbonate" patented technology

A smokeless tobacco product is provided. A water-permeable pouch containing a tobacco formulation and configured for insertion into the mouth of a user of that product is provided. The tobacco formulation includes granular tobacco and a buffer comprised of sodium carbonate and sodium bicarbonate. An outer packaging material enveloping the pouch is provided and is sealed so as to allow a controlled environment to be maintained within.

A medical device (10) includes a structure (12) adapted for introduction into a patient, the structure (12) being formed of a preferably non-porous base material (14) having a roughened or textured surface (16). The structure (12) is conveniently configured as a vascular stent with a base material (14) of stainless steel, nitinol or another suitable material. The medical device (10) also includes a layer (18) of a bioactive material posited directly upon the roughened or textured surface (16) of the base material (14) of the structure (12). The surface (16) of the base material (14) is roughened or textured by etching or by abrasion with sodium bicarbonate or another suitable grit. A preferred roughened or textured surface (16) is thought to have a mean surface roughness of about 10 μin. (about 250 nm) and a surface roughness range between about 1 μin. and about 100 μin. (about 25 nm and about 2.5 μm). The particularly preferred use of sodium bicarbonate as the abrasive to provide roughness or texture to the surface (16) of the base material (14) of the structure (12) is additionally advantageous in the low toxicity of the sodium bicarbonate to production workers, the ease of product and waste cleanup, and the biocompatibility of any residual sodium bicarbonate.

Methods for preparing a biochip are provided herein wherein the biomolecular probe to be used with the biochip is alternatively bound to a hydrogel prepolymer prior to or simultaneously with polymerization of the prepolymer. In particularly preferred embodiments, a polyurethane-based hydrogel prepolymer is derivatized with an organic solvent soluble biomolecule, such as a peptide nucleic acid probe in aprotic, organic solvent. Following derivatization of the prepolymer, an aqueous solution, for example sodium bicarbonate, preferably buffered to a pH of about 7.2 to about 9.5, is added to the derivatized prepolymer solution to initiate polymerization of the hydrogel. Alternatively, a water soluble biomolecule, such as DNA or other oligonucleotide, is prepared in an aqueous solution and added to the polyurethane-based hydrogel prepolymer such that derivatization and polymerization occur, essentially, simultaneously. While the hydrogel is polymerizing, it is microspotted onto a solid substrate, preferably a silanated glass substrate, to which the hydrogel microdroplet becomes covalently bound. Most preferably the hydrogel microdroplets are at least about 30 mum thick, for example about 50 mum to about 100 mum thick. The resulting biochips are particularly useful for gene discovery, gene characterization, functional gene analysis and related studies.

The invention discloses a complex foam extinguishing agent for a coal mine and belongs to the technical field of fire prevention and extinguishing. The extinguishing agent is prepared from the following raw materials: main materials are 40 to 60 percent aqueous solution of ammonium bicarbonate or sodium bicarbonate and concentrated sulfuric acid in a solute mass ratio of 2:1-3:1, and auxiliary materials are a stabilizer and a foamer, wherein the auxiliary materials are 0.1 to 2 percent of the total weight of the main materials. Through a test, the extinguishing agent has the foaming coefficient of 20-200 and the foam stabilizing time of more than or equal to 2.5 hours. According to the foam extinguishing agent, the foam of inert gas carbon dioxide is applied to fire prevention and extinguishing of the coal mine, and the foam is diffused in a fire area and fills a fire space, so that the oxygen concentration in the fire area is rapidly reduced, fire is extinguished due to oxygen deficiency in the fire area, temperature is reduced and a fire extinguishing effect is good. The technology also can be applied to coal bed transformation, CO2 foam is easily absorbed by coal to displace partial methane, the recovery ratio of coal seam gas is improved, and CO2 is acid to reduce the generation of secondary precipitates, so that a gas drainage effect is improved. The complex foam extinguishing agent is simple and feasible, and low in cost.

The invention relates to an anti-emulsification water-soluble metal washing agent. Every 100 parts of the anti-emulsification water-soluble metal washing agent include the following components according to parts by weight: 3-7 non-ionic surfactant, 3-7 bi-ion active agent, 1-5 chelator, 1-5 rust preventive, 5-10 inorganic builder and the balance water, wherein the non-ionic surfactant is any one of fatty amine polyoxypropylene ether, alkylphenol ether and fatty amine polyoxyethylene alkyl ether ammonium sulfate, the bi-ion active agent is any one of alkyl dimethylin acetic acid betaine, lauramidopropyl betaine and cocamidopropyl betaine, the chelator is any one of sodium citrate, ethylenediaminetetraacetic acid tetrasodium salt and nitrilotriacetic acid sodium salt, the rust preventive is any one of sodium borate, sodium nitrite, sodium benzoate and long carbon chain carboxylic acid amine, and the inorganic builder is any one of trisodium phosphate, sodium metasillcate, sodium carbonate, sodium bicarbonate and sodium hydroxide. The anti-emulsification water-soluble metal washing agent has the advantage of higher cleaning capacity and reutilization capacity.

Systems and methods for using a sodium chloride source and a buffer source such as sodium bicarbonate in a controlled compliant flow path to generate from water a physiologically compatible fluid having a suitable level of a sodium ion and/or a buffer for use in hemodialysis, hemodiafiltration and hemofiltration. The system has a conditioning flow path that has at least a salination valve or salination pump, and at least one container has at least one solute in excess of the solubility of that solute. At least one of the solutes is a buffer source or sodium chloride. The conditioning flow path is in fluid communication with a controlled compliant flow path. The conditioning flow path can selectively meter fluid into and out of the controlled compliant flow path.

The invention relates to a process method for recovering ammonium chloride and sodium chloride from waste water containing the ammonium chloride and the sodium chloride, which produces the ammonium chloride and the sodium chloride by using mother solution which is generated in a process for producing sodium bicarbonate by natural bittern double decomposition reaction and contains the ammonium chloride and the sodium chloride as raw materials. The method adopts ammonium still, evaporation, crystallization and separation process to treat, wherein the evaporation adopts multiple-effect, a heat pump and a vacuum evaporation process, and selects a falling film evaporator and a forced circulation type evaporator to perform triple-effect mixed-flow procedure, so that sodium chloride is crystallized and separated in the evaporation; and the ammonium chloride is crystallized and separated by cooling after the evaporation. The method effectively reduces the operation temperature of the equipment, can repeatedly use secondary steam and condensed water, reduces erosion of the ammonium chloride solution to the equipment, saves the energy, reduces the cost, improves the production efficiency, and reduces environmental pollution.

The invention relates to the field of biology, and discloses a serum-free culture medium which essentially comprises an IMDM (Iscove Modified Dulbecco Medium), L-glutamine, sodium bicarbonate, Hepes, recombinant human insulin, recombinant human transferrin, recombinant human albumin, 2-mercaptoethanol, protocatechuic acid, lipid, amino acid, vitamins, trace elements, Pluronic F-68, hydrocortisone, vitamin C, bonding amine or recombinant human fibronectin, progesterone, putrescine, heparin, serotonin, epidermal growth factors (EGFs), b-fibroblast growth factors (FGF), platelet derive growth factor (PDGF)-BB and insulin-like growth factor (IGF)-I. The serum-free culture medium is clear in chemical components, free from animal sources and serum and safe and ideal in cell cultivation and avoids the doped animal components and unstable batches, and the results of the cultured mesenchymal stem cells show that the total cellular score, the cell phenotype and the secretory cell factors are normal, so that the serum-free culture medium has good industrial application prospect.

The invention discloses a clean producing craft of aluminum oxide and white carbon black comprehensively with high-alumina coal ash, which comprises the following steps: making sodium carbonate as raw material; disintegrating high-alumina coal ash under medium-temperature; generating acid dissoluble aluminosilicate materials; using dilute sulphuric acid to acid dip; separating aluminum oxide and silica in the high-alumina coal ash; further treating aluminous liquid part; generating hydrated alumina deposition; finishing gamma-alumina or alpha- alumina product through calcining; washing, purifying, drying; calcining the silica gel part; getting white carbon black, silica aerogel, ultra-fine silica, porous silica and so on inorganic silicide.

The invention discloses a hydroxypolyacrylate emulsion, and a preparation method and an application thereof. The preparation method comprises the following steps: weighing an acrylate monomer and/or a metacrylate monomer, a hydroxyacrylate monomer, an acrylic monomer, an acrylate function monomer and a hydroxy oligomer, uniformly mixing to prepare a monomer mixture, weighing 10-15% of the monomer mixture, and emulsifying by using an emulsifier to prepare a seed pre-emulsion for later use; and adding the emulsifier, sodium bicarbonate and deionized water into a reaction kettle, stirring, rising the temperature of a reaction system, adding an initiator, stabilizing, adding the seed pre-emulsion in a dropwise manner, stabilizing, adding the remaining monomer mixture and the remaining initiator in a dropwise manner, heating, slaking, cooling, neutralizing, carrying out heat insulation, cooling, and discharging to obtain the hydroxypolyacrylate emulsion. A film made by using an aqueous dual-component polyurethane coating prepared from the hydroxypolyacrylate emulsion and an aqueous polyisocyanate curing agent has the advantages of high hardness, high luster and excellent chemical resistance.

Process for producing sodium bicarbonate for purifying flue gases, according to which an aqueous solution containing sodium sulfate is subjected to electrodialysis to produce a sodium hydroxide solution and a sodium bisulfate solution, the sodium hydroxide solution being carbonated in order to obtain sodium bicarbonate.

The invention discloses probiotic type premix feed for laying hens, which is prepared from vitamin compound premix feed for the laying hens in laying period, a bacillus and lactobacilli compound preparation, xylan and mannan complex enzyme, phytase, methionine, lycine, choline chloride, common salt, calcium hydrophosphate, stone dust, fish meal, corn gluten meal, sodium bicarbonate, trace element compound premix feed for the laying hens in the laying period, ethoxyquinoline, bentonite, and rice chaff by mixing in proportion. Compared with the common compound feed for the laying hens, the compound feed prepared by the premix feed reduces discharge of harmful substances such as nitrogen and phosphorus in chicken manure by more than 20 percent, reduces the concentration of harmful gases such as ammonia in a hen house by more than 40 percent, improves the feed utilization rate by 5 to 10 percent and the laying rate by 3 to 5 percent, averagely prolongs the laying period by 25 days, and reduces feeding cost by 5 to 8 percent and the death-cull rate of the laying hens.

The present invention includes a process and composition for treating skin disorders. The composition of the present invention comprises 94.0 to 99.2 percent by weight of cation-free water, 0.1 to 1.0 percent by weight of Calcium chloride, 0.0 to 2.0 percent by weight of linear long chain polyphosphate, 0.1 to 1.0 percent by weight of sodium bicarbonate and 0.5 to 3.0 percent by weight of cross-linked polyacrylamide polymer.

An aqueous solution of local anesthetic is instilled into the urinary bladder in sufficient concentration with the addition of an alkalinizing agent such as sodium bicarbonate to elevate the intra-vesical pH to approximately 8.0. The combination is left in situ in the bladder for at least fifteen minutes to allow time for absorption of the base form of the local anesthetic. This method provides safe and effective topical anesthesia to allow pain-free cystoscopic biopsy and cautery of bladder lesions such as bladder cancer, and provides a means to treat inflammatory conditions of the bladder such as chronic interstitial cystitis and acute bacterial cystitis.

The invention relates to an organic silicon pesticide booster with low surface tension, less side effect and high yield. The chemical formula of invention is as following one, wherein, Me=CH3, R1=CH3, R2=H, CH3, C4H9, -O(O)CCH3, x=0-10, y=1-20, a=5-25, b=0-15. And the preparation comprises that putting the hydrogen siloxane and polyalkenylethers into reaction kettle, protected by N2, to increase temperature and be mixed quickly; then adding some platinum-1.3-divinyl tetramethyl disilyloxy-acetylacetone as catalyst, naturally increasing temperature to 110Deg. C, making solution transparent, adding baking soda, compressing and filtering, to obtain needed organic silicon pesticide booster. The invention has wide application in variable pesticides.

The invention discloses a method for preparing an organic fertilizer by fermenting cow dung compost. According to the method, two times of composting fermentation are adopted and a composting promoter is added, so that the fermentation speed and the composting degree can be quickly increased; meanwhile, polyacrylamide, bentonite, cocoanut active charcoal and the like are added to reduce the moisture in cow dung and achieve the effect of deodorizing; sodium bicarbonate and triple superphosphate are added to generate carbon dioxide which can expand the cow dung, so that the permeability is increased; the early-stage fermentation temperature of the cow dung can be increased by the heat released from reaction, so that the activity of natural fermentation bacteria agents in the cow dung is improved; meanwhile, when the heat generated by the cow dung after a period time of composting is overhigh, the polyacrylamide absorbs the moisture in the cow dung to achieve the effect of reducing the temperature and to reduce turning times; after the fermentation is completed, the organic fertilizer prepared by drying and dewatering is high in fertilizer efficiency, durable and efficient, has the effects of retaining water, sterilizing and improving soil, and can promote the rapid growth of crops, thus improving the yield and the quality of the crops.

The present invention relates to high solid content vinyl acetate-ethylene copolymer latex for binder and the synthetic method, including 55 to 75 portion of vinyl acetate, 24 to 45 portion of ethylene, 3 to 5 portion of N-methylol acrylamide, 2 to 4 portion of PVA1788 and PVA0588, 0.4 to 1.0 portion of the compound of nonionic emulsifying agent nonyl phenol polyoxyethylene alkyl ether and anion emulsifying agent alkyl sulphate with 2:1 mixture ratio, 0.2 to 1.0 portion of 35 percents oxydol with 1:1 mixture ratio, 0.05 to 0.4 portion of formol zinc sulphate, 0.1 to 0.5 portion of ferrous sulphate, 0.5 to 1.0 portion of regular dodeca-carbon thiol-alcohol, 0.05 to 0.35 portion of potassium phosphate, 0.1 to 0.5 portion of sodium bicarbonate and 45 to 55 portion of de-ionized water. With the adoption of latex polymerization, low-residual monomer VAE latex with solid content more than 65 percents is synthesized, which is used as binder to be applied in timber processing industry and packaging industry.

The invention discloses a biscuit with fruit and vegetable taste, comprising the following raw materials by weight in parts: 5-50 parts of fruit and vegetable vinasse or fruit and vegetable vinegar residue, 10-75 parts of shortening or salad oil, 0.4-4 parts of sodium bicarbonate, 5-250 parts of at least one of wheat powder or millet powder or grain powder. The invention adopts the fruit and vegetable vinasse or the fruit and vegetable vinegar residue, the wheat powder or the millet powder or the grain powder and the plant oil to produce fruit and vegetable slag (vinasse) biscuit or fruit and vegetable slag (vinasse) grain biscuit by preparing materials, modulating, forming, baking, cooling and packaging, so the biscuit not only has rich dietary fibre and rich nutrition.

The invention relates to a coarse grain biscuit and a preparation method thereof. The formula of the coarse grain biscuit comprises 15 to 18 percent of coarse grain special flour, 30 to 38 percent of gluten flour, 8 to 15 percent of edible vegetable oil, 12 to 20 percent of white granulated sugar, 2 to 3 percent of dried whole milk, 0.2 to 0.25 percent of sodium bicarbonate, 0.2 to 0.35 percent of ammonium bicarbonate, 0.1 to 0.25 percent of edible salt, 0.1 to 0.25 percent of coarse grain essence, 2 to 3.5 percent of egg and the balance being water. The preparation method comprises the following steps that: needed raw materials are taken and mixed in advance by means of dry powder; a mixed liquid is prepared and then is added in the premixed dry powder so as to be mixed; water is added in the mixture so as to knead the mixture into a dough; the dough is kneaded, fermented and pressed into a dough which is fed into an oven to be roasted; and the roasted dough is coated with palm oil after and is packaged after airing. The coarse grain biscuit adopts coarse grain special flour made of coarse grain of natural corns, beans and tubers, and has easily controlled mixture ratio of raw materials, low cost and stable quality; moreover, the coarse grain biscuit is suitable for large-scale production, and has a nice chewy texture and the efficacies of heal care and weight reducing.

The invention discloses a comprehensive utilization method for rice hull combustion emissions and waste residue, in particular a method for preparing superfine silicon dioxide and active carbon with high specific surface area by using the emissions and waste residue generated by the pyrolysis and combustion of the rice hull, which comprises the following steps: the main raw material sodium carbonate (or potassium carbonate) is heated and hydrolyzed to be sodium bicarbonate (or potassium bicarbonate), OH<-> is released, the silicon dioxide in the rice hull ashes is dissolved, the sodium bicarbonate (or the potassium bicarbonate) is reduced to sodium carbonate (or potassium carbonate) after temperature reduction, and then the silicon dioxide precipitate is separated out. The method has the advantages that the silicon dioxide which only plays the role of catalyst in the process can be used circularly without consumption, the cost is reduced; the purified combusted tail gas can be used for preparing a precipitator of the silicon dioxide, thus avoiding the pollution brought by acid neutralization and precipitation in the traditional technology, reducing the cost, making full use of carbon dioxide and reducing green house gas emission; and the activating agent for preparing the active carbon can be recovered, which can be returned to the hydrolyzation process to be reused after adjusting the concentration of the sodium carbonate (or the potassium carbonate), thus reducing the cost.

The invention relates to a gel plugging agent for deep profile control of a higher temperature oil reservoir, and a preparation method of the gel plugging agent. The gel plugging agent comprises 0.3-0.8 percent of nonionic polyacrylamide, 0.6-1.3 percent of a cross-linking agent A, 0.45-1.44 percent of a cross-linking agent B, 0.02-0.04 percent of a temperature stabilizer and 0.01-0.08 percent of a pH value regulator, wherein the cross-linking agent A is methenamine; the cross-ling agent B is hydroquinone or resorcinol; the temperature stabilizer is sodium thiosulfate, sodium bisulfite or sodium sulfite; and the pH regulator is sodium hydroxide, potassium hydroxide, sodium carbonate or sodium bicarbonate. The gel plugging agent disclosed by the invention has strong temperature resisting performance and can be used for the profile control operation of the high temperature oil reservoir with 100-160DEG C; the gel plugging agent has the characteristics of high strength after being gelatinized, stronger plugging capability for the stratum and favorable thermal stability; and in addition, after the gel plugging agent is stood at the temperature of 130 DEG C for 90 days, the strength change is little and gel breaking and hydration are avoided.

Chewing gum formulations including sodium bicabornate and encapsulated aspartame are disclosed. Methods of manufacturing chewing gum are also disclosed.