3288 results about "Citrate sodium" patented technology

The present invention discloses a novel inorganic decoration base material plate and a preparation method thereof. The novel inorganic decoration base material plate is prepared from the following raw materials by weight: 45-50% of magnesium oxide, 15-20% of magnesium sulfate, 1-1.5% of a modifier, 5-10% of a filler, 1-5% of a reinforcing material, and the balance of water. According to the present invention, the magnesium sulfate is used to replace the magnesium chloride as the gelling material, such that the prepared base material plate almost does not contain chlorine ions; the mixture of citric acid, sodium citrate and sucrose is adopted as the modifier so as to adjust the condensation time and significantly increase the water resistance and the dampness resistance of the base material plate; and the prepared base material plate has characteristics of good waterproof performance, no moisture absorption efflorescence, high strength, cracking deformation resistance, good flexibility, good durability, significantly improved fireproof performance, no formaldehyde release during production and use processes, safety and environmental protection, and can be widely used as the base plates of fireproof plates, suspended ceiling plates, decorative plates, partition boards and other plates.

The invention relates to a detergent for daily use, and specifically relates to an environment-friendly type hyperconcentration biological enzyme liquid laundry detergent and a preparation method thereof. The prepared product in the invention is mobile liquid with low viscosity, contains no phosphates, fluorescent brightening agents or alkylphenol polyoxyethylene, and has no pollution to environment. The production process for the product is simple; preparation and mass production of the product are easy; the product can be widely used for washing of various fabrics and clothing and is both applicable to hand wash and machine wash. The environment-friendly type hyperconcentration biological enzyme liquid laundry detergent comprises, by weight, 0.5 to 50 parts of fatty alcohol polyoxyethylene ether sodium sulfate-70, 0.5 to 50 parts of fatty alcohol polyoxyethylene ether-9, 0.5 to 30 parts of sodium alkylbenzene sulfonate-60, 0.2 to 15 parts of triethanolamine, 0.1 to 10 parts of sodium citrate, 0 to 5 parts of citric acid, 0 to 5 parts of aliphatic acid, 0.02 to 8 parts of biological enzyme, 0.1 to 20 parts of an enzyme stabilizer, 0.5 to 30 parts of a solvent, 0 to 15 parts of a hydrotropic agent, 0 to 5 parts of a bactericide, 0.001 to 5 parts of an antiseptic, 0 to 3 parts of essence and 1.0 to 40 parts of softened water.

The invention relates to monocrystalline silicon piece texturizing liquid and a texturizing method thereof. The formula of the texturizing liquid comprises the following components in percentage by mass: 0.1 to 3 percent of sodium hydroxide, 2 to 10 percent of isopropanol, 0.01 to 2 percent of additive and the balance of water, wherein the formula of the additive comprises the following components in percentage by mass: 0.001 to 3 percent of glucose, sodium gluconate or potassium gluconate, 100 to 8,000ppb of polyoxyethylene ether, 0.001 to 2 percent of sodium lactate or sodium citrate, 0.01 to 2 percent of propylene glycol, 0.01 to 6 percent of sodium silicate, 0.001 to 2 percent of sodium carbonate or sodium bicarbonate and the balance of water. The method for texturization comprises the steps of placing a monocrystalline silicon solar battery plate into the texturizing liquid for reaction for 10 to 30 min at the temperature of 70 to 90 DEG C. A pyramid on the monocrystalline silicon piece has a high nucleation density and is thin, small and uniform, the reduction thickness is small, texturization reflectivity is low and the rate of texturizing finished products is high.

The invention discloses a compound corrosion inhibitor of an alkaline electrolyte of an alkaline aluminium battery, an electrolyte and a preparation method thereof. The compound corrosion inhibitor of the alkaline electrolyte of an alkaline aluminium battery is compounded by an inorganic corrosion inhibitor and an organic corrosion inhibitor, wherein the inorganic corrosion inhibitor comprises the following components based on the concentration: 0.015-0.1mol/L sodium stannate, 0.005-0.05mol/L of indium hydroxide, 0.03-0.1mol/L sodium citrate, 0.003-0.05mol/L calcium oxide and 0.02-0.1mol/L zinc oxide; the organic corrosion inhibitor comprises the following components by weight percent: 0.01-0.1wt% of chitosan derivant and 0.05-0.5wt% of organic surface active agent. The compound corrosioninhibitor can effectively prevent an aluminium electrode from corroding in an alkaline solution, and the electrochemistry performance of an aluminium anode is not affected.

The invention provides a preparation method of cubic ultra-fine calcium carbonate particles. The method comprises the following steps: (1) adding a nucleation promoter to calcium hydroxide suspension liquid, wherein the nucleation promoter is selected from more than one of glucose, sucrose or sodium citrate; (2) carbonizing by introducing carbon dioxide until the pH value is 8-12, adding a crystal modifier and ageing for 0.5-10 hours, wherein the crystal modifier is selected from one of sodium chloride, sodium carbonate, sodium bicarbonate or sodium hydroxide; (3) further introducing carbon dioxide and carbonizing until the pH value is 6.5-7.0; (4) coating by adding a coating agent, filtering and drying to obtain a product, wherein the coating agent is selected from a resin acid, a resin acid alkali metal salt, a fatty acid or a fatty acid alkali metal salt. According to the calcium carbonate particles, the particle sizes are 90-180nm, the calcium carbonate particles are in a cubic shape, and the specific surface area is 10-18m<2>/g. Thus, the cubic ultra-fine calcium carbonate particles can be used as functional fillers in coating, rubber, plastic and sealant industries.

The invention relates to a down jacket cleaning agent which comprises the following components in parts by mass: 1-30 parts of anion surface active agent, 1-15 parts of nonionic surface active agent, 1-10 parts of DP-3000, 0.1-10 parts of tea saponin, 0.1-10 parts of soybean ethyl sulfate morpholine, 0.1-10 parts of ColtideHSi, 0.1-1 part of essence, 0.1-1 part of sodium citrate and 13-97.4 parts of deionized water. The cleaning agent provided by the invention can integrate sterilization, flavor removal and conditioning into a whole and has the advantages of high detergency, high stability, adaptability in cold and hot water and neutrality without damaging hands.

The invention discloses a chemical nickel-plating method for carbon fiber, which is designed for overcoming the disadvantages of high cost, a large number of process steps and poor operability existing in the prior art. In the method, a chemical plating process is adopted; and a pre-treatment is performed on a raw material and chemical plating solution is prepared before the chemical plating. The pre-treatment process comprises the steps of: calcining by using a muffle furnace to remove glue; soaking in solution of absolute ethanol to remove oil; performing surface roughening and activating treatment by using solution of sodium hydroxide and solution of silver ammonia; sensitizing by using a sensitizer, namely stannous chloride; and performing surface reduction by using solution of sodium hypophosphite. The chemical plating solution consists of nickel sulfate hexahydrate, sodium hypophosphite, sodium pyrophosphate and sodium citrate. The chemical nickel-plating on the carbon fiber is finished by placing a pre-treatment product of the chemical plating into the chemical plating solution, and reacting, standing, filtering and drying under a chemical plating condition. The method has the characteristics that: the product has a uniform surface, a compact plating layer and uniform particles.

The invention relates to a blocking remover of a gas well shaft. The blocking remover comprises, by weight, 5-25% of an alcohol ether compound, 0.5-10% of a dispersant, 1-10% of a cleaning agent, and 0.5-5% of chelating agent, with the balance being a nitrogen-containing polar solvent, wherein the nitrogen-containing polar solvent is one selected from N,N dimethyl formamide, N,N dimethyl acetamide, and N-methyl pyrrolidone, the alcohol ether compound is one selected from glycol-ether, glycol-propyl ether, glycol-butyl ether, and diglycol-ether, the disperant whose micelle particle size is from 20nm to 100nm is a middle-phase microemulsion-type dispersant mixed by kerosene, water, a surfactant and a cosurfactant, the cleaning agent is one selected from allene diamine, acetonitrile and pentylamine, and the chelating agent is one selected from sodium citrate and EDTA. The blocking remover has the advantages that corrosivity is weak, that the speed of dissolving blockage is fast, that the product performance is stable in high temperatures, and that the blocking remover can reduce damages caused by water locking and fouling in areas close to gas wells, and can recover the permeability of storing layers.

The invention discloses a preparation method for a nanofiber porous membrane for carrying high-activity nanometal particles, which includes the following steps: a nanofiber membrane material with high specific surface area is adopted as a carrier material for carrying nanometal particles to be sequentially immersed in aqueous dopamine hydrochloride solution and aqueous polyethyleneimine solution to undergo modification, metal particles wrapped by sodium citrate stabilizer are then adsorbed, plasma is adopted for treatment, and finally, the nanofiber porous membrane for carrying high-activity nanometal particles is obtained. The advantages of the invention are as follows: the nanofiber porous membrane obtained by the preparation method is a flexible material, and therefore is easy to process; the activity of the porous membrane material is greatly increased; moreover, the morphology and size of nanometa particles can be controlled; the nanofiber porous membrane can carry nanometal particles with different performances; and the nanofiber porous membrane has potential application in fields, such as filtration, catalysis, bacteria resistance and surface-enhanced Raman. The whole process is green and pollution-free, so industrial popularization is easy.

The invention discloses a method for preparing a novel biological microcapsule for a biological fluidized bed. The microcapsule is prepared through treating sodium alginate, powdery active carbon, calcium chloride and chitosan as capsule materials, and a dominant degradation bacterium as a capsule core, preparing calcium alginate gel beads through carrying out ion exchange on sodium alginate and calcium chloride, coating the surface of the gel beads with chitosan, liquefying the gel beads in sodium citrate, and coating the gel beads with sodium alginate. The diameter of the prepared microcapsule is 3.0-4.0mm, the membrane thickness of the prepared microcapsule is 10-20mum, the density of the prepared microcapsule is 1.05-1.08g/mL, and the maximum interception molecular weight of the prepared microcapsule is about PEG 4000, so a micromolecular substance with the relative molecular weight of less than PEG 1500 can freely go through the capsule membrane. Acidic conditions and most divalent cations allow the microcapsule to be stable, and monovalent cations and most anions are bad for the stability of the microcapsule.

The invention discloses a water phase preparation method of a spherical silver nanoparticle with adjustable size, which comprises the following steps of: 10, preparing a silver seed solution : 101, mixing deionized water with a sodium citrate solution, and obtaining a stabilizer solution after stirring; 102, heating the stabilizer solution to the temperature of water bath, adding an AgNO3 solution, and then adding a NaHB4 solution; and 103, utilizing the deionized water to obtain a constant volume after cooling at room temperature, and obtaining the silver seed solution; 20, preparing the spherical silver nanoparticle: 201, adding deionized water to a flask, then adding sodium citrate solution to obtain a reducer solution, and heating the reducer solution to a boiling state; 202, adding the silver seed solution to the reducer solution, and then adding the AgNO3 solution; and 203, cooling at room temperature to obtain the spherical silver nanoparticle. The preparation method can be used for preparing the spherical silver nanoparticle with favorable monodispersity, and the size of the spherical silver nanoparticle can be adjusted.

The invention relates to a compound potassium hydrogen persulfate disinfectant and a manufacturing process thereof. The compound potassium hydrogen persulfate disinfectant comprises the following components in percentage by weight: 60-65% of potassium hydrogen persulfate complex, 0-1.8% of sodium chloride, 2-10% of aminosulfonic acid, 0-2% of sodium dodecyl benzene sulfonate, 0-10% of sodium hexametaphosphate, 0-25% of sodium citrate, 0-25% of sodium tartrate, 0-0.2% of flavoring agent and 0-0.12% of pigment. In the compound potassium hydrogen persulfate disinfectant provided by the invention, the different disinfection requirements of medical, family and livestock and poultry breeding industries are sufficiently considered and the contents of the components in the formula are adjusted according to different users, so that the compound potassium hydrogen persulfate disinfectant can meet the needs of different users; the compound potassium hydrogen persulfate disinfectant has good killing effects on almost all zoonotic bacteria, fungi and viruses, and simultaneously has the characteristics of low toxicity and ultra-low toxicity; and the wide application ranges and good stability and security are perfectly combined.

The invention discloses concrete with the functions of crack resistance and infiltration resistance. The concrete comprises the following raw materials in part by weight: 70-100 parts of cement, 400-500 parts of macadam, 50-70 parts of river sand, 40-50 parts of fly ash, 30-60 parts of mine residues, 5-20 parts of coal slack, 20-50 parts of basalt fibers, 5-15 parts of polypropylene fibers, 5-20 parts of glass fibers, 6-13 parts of expanded perlite, 20-80 parts of nanometer silicon dioxide, 5-15 parts of nano calcium carbonate, 1-3 parts of sodium dodecyl sulfate, 3-6 parts of zinc stearate, 2-5 parts of zinc borate, 3-7 parts of sodium citrate, 0.5-1.4 parts of acetyl tributyl citrate, 0.7-1.3 parts of diethylenetriamine, 3-10 parts of a water reducing agent, and 80-100 parts of water. The concrete disclosed by the invention has the advantages of good crack resistance, excellent infiltration resistance and good durability.

The invention generally relates to formulations having particles comprising phospholipids, bioactive agent and excipients and the pulmonary delivery thereof. Dry powder inhaled insulin formulations are disclosed. Improved formulations comprising DPPC, insulin and sodium citrate which are useful in the treatment of diabetes are disclosed. Also, the invention relates to a method of for the pulmonary delivery of a bioactive agent comprising administering to the respiratory tract of a patient in need of treatment, or diagnosis an effective amount of particles comprising a bioactive agent or any combination thereof in association, wherein release of the agent from the administered particles occurs in a rapid fashion.

The invention discloses a cell preserving liquid. The cell preserving liquid contains 120-137mM of NaCl, 2.2-2.8mM of KCl, 3-9mM of sodium citrate, 15-20mM of glucose, 0.6-1.2mM of CaCl2, 1.5-3.5%(w/v) of alhumin, 0.3-0.8%(w/v) of amino acids and 0.015-0.035%(w/v) of vitamins. The invention also discloses a preparation method of the cell preserving liquid, and a cell preserving method. The cell preserving liquid is safe, can maintain the motility rate of cells for a long time, has a low cost, and has a good application prospect and a good economic benefit.

The invention relates to a surface-enhanced Raman scattering active substrate and a preparation method thereof. A HAuCl4 solution and a AgNO3 solution are added in a polyvinyl alcohol aqueous solution with a certain mass concentration, then sodium citrate is added to prepare a polyvinyl alcohol/Au-Ag alloy nanoparticle spinning solution after sufficient reaction, and a parallel type electrostatic spinning technology is adopted to obtain the surface-enhanced Raman scattering active substrate with a polyvinyl alcohol/Au-Ag alloy nanoparticle composite nanofiber structure, wherein the content of Au-Ag alloy nanoparticles is 2*10<-4> to 2*10<-2> mol/g, and the molar ratio of Au:Ag is (1:2)-(1:3). As gold-silver alloy nanoparticles can absorb light from blue to green and the plasma resonance wavelength can be controlled and adjusted between silver and gold, the applicable wavelength range of the surface-enhanced Raman scattering active substrate material provided by the invention is wider than that of a gold or silver single-component substrate.

The invention relates to a method for preparing an aerated concrete block, in particular to the method for preparing a 06-grade gypsum based vapor pressure free aerated concrete block, which is characterized in that that the method comprises the following steps: 1) preparing raw materials; 2) selecting the raw materials; 3) preparing composite gelled materials; 4) dissolving retarder sodium citrate in water which accounts for 1/5 to 2/5 of the total amount, stirring the mixture and immediately adding the mixture to the composite gelled material, and stirring the mixture for 2 minutes to obtain liquid slurry; 5) adding a mixture of air-entraining agent aluminum powder and degreaser honeylocust fruit powder to the remaining water to be stirred into a suspension which is then immediately added to the liquid slurry, and stirring the mixture for 3 minutes to obtain mixed slurry; 6) pouring the mixed slurry into a test mold, and performing cutting and demolding after 6 to 8 hours of natural curing to obtain a blank body; and 7) performing damp heat curing on the blank body for 24 hours, and then drying and dehydrating the blank body naturally to obtain the finished product. The method has the advantages of simple process, low cost and high utilization rate of desulfurization construction gypsum; and the finished product has the characteristics of light weight, thermal insulation, sound absorption and insulation, vibration resistance and fire prevention, conditioning treatment, good water resistance, small dry-wet shrinkage, and stable performance.

The invention provides a fresh and cool enzymolysis grain beverage and a preparation method thereof, relating to a non-alcoholic beverage. The invention aims to provide a fresh and cool enzymolysis grain beverage which retains original nutrition and functional components of grains and is fine, fresh and cool in taste, stable in product composition and low in viscosity, and a preparation method thereof. The beverage is prepared from the following raw materials: 8-12% of grains, 0.01-0.2% of sodium citrate, 0.01-0.4% of emulsifier, 0.05-0.5% of stabilizer, 1.0-2.3% of processing auxiliary agent and the balance of water. The preparation method comprises the steps of: pre-cooking or baking the grains, carrying out colloid milling and homogenizing, adding the processing auxiliary agent, carrying out enzymolysis, then inactivating the enzyme, separating, and filtering to obtain coarse fiber and a material liquid C; adding the material liquid C, sodium citrate, emulsifier and stabilizer to hot water, diluting to certain volume with blending water to obtain a blended liquid, cooling, then conveying to an ultrahigh-temperature instantaneous sterilizing system, preheating, degassing, homogenizing, and then carrying out ultrahigh-temperature instantaneous sterilizing; and filling the blended liquid after ultrahigh-temperature instantaneous sterilizing, and then packaging.

The invention relates to a beverage having multiple health-care functions. The beverage having multiple health-care functions is characterized in that lotus, lotus leaf, haw, reed rhizome, gynostemma pentaphylla, chrysanthemum, licorice, ginkgo leaf, malt, cassia seed, coix seed, wolfberry, fleece-flower root, honeysuckle flower, root of kudzu vine, mint, Chinese yam, common curculigo rhizome and drinking water are utilized as raw materials; white sugar, honey, lemon essence, sodium citrate, mint essence, sodium cyclamate, caramel and jujube juice are utilized as seasonings; the raw materials are subjected to water boiling extraction by a conventional traditional Chinese medicine boiling extraction method; the extract is concentrated, is added with the seasonings and is stirred; and the mixture is added with drinking water to form the beverage having multiple health-care functions. The beverage having multiple health-care functions is a high-grade nutriment having a scientific and reasonable formula, functions of promoting blood circulation and removing blood stasis, clearing and activating channels and collaterals, consolidating basis and recovering promordial qi and relieving uncomfortable symptoms, no toxic and side effects, a good taste, no any bitterness taste, and effects of sunstroke prevention, temperature reduction and diuresis.

The invention discloses a composite porous activated carbon flue gas adsorbent which is characterized by comprising the following raw materials in parts by weight: 98-105 parts of shell activated carbon, 36-40 parts of diatomite, 2-3 parts of sodium metasilicate, 2-3 parts of rosin, 2-3 parts of VAE emulsion, 2-3 parts of polyvinyl alcohol, 1-2 parts of sodium alcohol ether sulphate, 1-2 parts of sodium citrate, 1-2 parts of gypsum residue, 2.5-3.5 parts of pulverized fuel ash, 4-5 parts of edible corn starch, 2-3 parts of lanthanum nitrate, 9-12 parts of glass fiber powder, 4-6 parts of adsorption aids and a proper amount of water. The composite porous activated carbon flue gas adsorbent disclosed by the invention is reasonable in formula, viscous matters such as polyvinyl alcohol and edible corn starch are added, the toughness and strength of the activated carbon are improved, and the service life is prolonged; and due to the addition of the adsorption aids, the adsorbent has special porosity, the contact time between gas and the adsorbent is prolonged, and the effects of inhibiting bacteria and purifying the air are achieved. Therefore, the adsorption efficiency is high, the production process is simple, and the adsorbent is suitable for industrial dry desulfurization, automobile exhaust desulfurization and daily air purification.

The invention relates to a preparation method for polydopamine-coated polyethyleneimine-stablized gold-nanometer-star photothermal treatment agent. The preparation method comprises the following steps: preparing a gold seed solution from chloroauric acid and sodium citrate; activating mercaptoacetic acid with EDC, then adding an aqueous PEI solution and carrying out a reaction, dialysis, cooling and drying so as to obtain PEI-SH; adding dopamine hydrochloride into a Tris buffer so as to obtain dopamine Tris buffer; adding the gold seed solution into a chloroauric acid solution, adding a AgNO3 solution and an ascorbic acid solution under stirring, adding PEI-SH after stirring reaction and carrying out a reaction so as to obtain AuNSs-PEI; and adding AuNSs-PEI into the dopamine Tris buffer and carrying out stirring and centrifugation so as to obtain the photothermal treatment agent. The preparation method has the advantages of simplicity, mild reaction conditions, easy operation and industrialization prospects; and the prepared star-like nanometer agent has application potential in the fields of CT imaging diagnosis and photothermal treatment of cancers.

The invention discloses a synthetic method for nitrogen-doped porous carbon N-C, and an application of the nitrogen-doped porous carbon in a positive electrode of a microbial fuel cell. The synthetic method comprises the following steps of taking melamine as a nitrogen source, and taking sodium citrate as a carbon source, mixing and grinding the melamine and the sodium citrate based on a certain proportion; and calcining the mixture in inert gas Ar at a temperature of 800 DEG C for 5h to successfully prepare the nitrogen-doped porous carbon N-C which is used as the microbial positive electrode material. The synthetic method and the application have the advantages as follows: on one hand, when the nitrogen-doped porous carbon N-C is used as the positive electrode of the microbial fuel cell, the attachment of electrogenesis microbes in the positive electrode can be facilitated; and on the other hand, the positive electrode activation overpotential is lowered, so that the electrogenesis power density of the microbial fuel cell is remarkably improved.

The invention provides a sulfur/nitrogen double-doped carbon quantum dot with high fluorescence quantum yield and a preparation method and ion detection application of the sulfur/nitrogen double-doped carbon quantum dot. The carbon source of the carbon quantum dot is provided from sodium citrate, and the sulfur source and the nitrogen source of the carbon quantum dot are both provided from sulfamide. The reparation method comprises the following steps: dissolving the raw materials in a hydrothermal reaction kettle for reaction, after the synthesized product is naturally cooled, separating so as to obtain a solution, and drying the solution, thereby obtaining the sulfur/nitrogen double-doped carbon quantum dot with high fluorescence quantum yield. By adopting the method, only one step of reaction is needed, a small amount of middle products and byproducts can be generated, a very small amount of raw materials is needed, the reaction speed is fast, and the method is both economic and environment-friendly. In addition, the sulfur/nitrogen double-doped carbon quantum dot has the characteristics of high fluorescence quantum yield, can be successfully applied to detection on Hg<2+>, and has wide application prospect in biological detection, sewage treatment and the like.

The invention discloses a method for manufacturing a graphene/gold surface-enhanced Raman spectrum substrate and relates to a method for manufacturing a surface-enhanced Raman spectrum substrate. The problems that gold nanoparticles of the conventional precious metal surface-enhanced Raman spectrum substrate are not fully utilized and precious metal substrates are insufficient are solved. The method comprises the following steps of: 1, preparing a graphene oxide aqueous solution; 2, preparing a hydrogen tetrachloroaurate hydrate aqueous solution, a sodium citrate aqueous solution and a silver nitrate solution; 3, preparing a graphene/gold composite material; 4, preparing a graphene/gold composite material suspension; and 5, erecting the treated substrate in the graphene/gold composite material suspension, and obtaining the graphene/gold surface-enhanced Raman spectrum substrate after the reaction is finished. According to the graphene/gold surface-enhanced Raman spectrum substrate, the repeated utilization of gold nanoparticles is improved, so that the cost is reduced, and the substrate has high enhancement of the surface Raman spectrum; and moreover, the method is applied to the field of chemical industry.