25 results about "Sodium reduction" patented technology

The invention discloses nano-engineered microalgae for photoimmunotherapy of melanoma and a preparation method of the nano-engineered microalgae. The preparation method comprises the following steps: S1, respectively putting tannic acid, potassium carbonate, sodium citrate and HAuCl4. 3H2O into water to prepare a tannic acid solution with the concentration of 4.3 mg / mL, a potassium carbonate solution with the concentration of 20.7 mg / mL, a sodium citrate reduction solution with the concentration of 0.7 mg / mL and a HAuCl4 solution with the concentration of 10.0 mg / mL; s2, dissolving a tannic acid solution and a potassium carbonate solution in the sodium citrate reduction solution to obtain a mixed solution; s3, the mixed solution is heated under stirring, a HAuCl4 solution is dropwise added, stirring continues, and AuNP is obtained; and S4, mixing the AuNP obtained in the step S3 with the microalgae PCC 7942, standing, incubating, and centrifugally washing, so as to obtain the nano-engineered microalgae PCC-coated AuNP. The functionalized microalgae drug delivery system (PCC-coated AuNP) prepared by the invention has the performance of respectively generating O2 and H2 through photosynthesis and photocatalytic reaction under the irradiation of 635 nm red light.

The present invention discloses a rapid detection method for sodium polydisulfide (PDPS). The method comprises preparing a buffer solution and an Elma color developer; preparing multiple sets of sodium polydisulfide (PDPS) solutions of different concentrations; pretreating the sodium polydisulfide (PDPS) solutions with an excess of a boron hydride compound as a reducing agent to reduce the sodium polydisulfide to a thiol-containing compound; and removing the excess reducing agent. An absorbance test is performed to establish a standard curve for the concentration and absorbance of the brightener, and the concentration of the sodium polydisulfide (PDPS) in the electrolyte to be tested is measured using the established standard curve. The method uses a boron hydride compound as a reducing agent and utilizes ultraviolet-visible spectroscopy to rapidly detect the content of the brightener, sodium polydisulfide (PDPS). The method is convenient and simple to operate, provides highly accurate test data, and is applicable to the detection of electroplating bath additives in various systems.

The application discloses a kind of Tibetan pig low-salt sausage of compound low-sodium salt and preparation method thereof, it is related to low-sodium salt preparation technical field, including the following raw materials: sodium chloride, modified potassium chloride, stabilizer, modified potassium lactate and composite powder.In the application, modified potassium chloride and modified potassium lactate are mutually synergistic and matched, in the production of Tibetan pig low-salt sausage, modified potassium chloride can replace part of sodium salt to supplement saltiness, completely avoid the bitter taste and metallic off-flavor of ordinary potassium salt, ensure that sausage taste is pure and natural, does not cover up the fresh and fragrant of meat itself;Modified potassium lactate can lock the moisture of meat product, improve the compact texture of sausage, avoid dry meat, and also play a role in mild bacteriostatic preservation, but also avoid the moisture of ingredients to be clumpy, convenient production and deployment.Two-way cooperation, perfect support low-salt formula seasoning demand, improve overall edible palatability, optimize sausage texture quality and storage stability, so that low-salt sausage is healthy in sodium reduction, taste and quality are comprehensively improved.

The invention relates to the technical field of chemical gold plating, in particular to environment-friendly chemical nanogold liquid and application thereof. An environment-friendly chemical nanogold solution comprises the following preparation raw materials including, by mass concentration, 1-3 g / L of sodium gold sulfite, 12-20 g / L of a reducing agent, 48-62 g / L of a composite coordination agent, 25-32 g / L of a pH buffering agent, 20-50 mg / L of a stabilizer, 0.10-0.20 mg / L of a crystal nucleus refiner, 4-7 g / L of a corrosion inhibitor and 0.08-0.12 g / L of a water-soluble ruthenium compound, and the reducing agent is composed of sodium hypophosphite and thiosemicarbazone according to the mass ratio of 5: (2-3). Through synergistic innovation of the components, the environmental protection property, the plating speed, the plating layer quality and the process cost are balanced, the industrial pain points that a traditional chemical gold plating system is high in toxicity, the plating layer is easy to strip, welding is poor and the like are solved, and the industrial application value is remarkable.

The application discloses a kind of implant piezoelectric nano coating and its preparation method and application.The nano coating is composed of nano-flower-shaped barium titanate and gold nanoparticles loaded on its surface.In this application, gold nanoparticles are deposited on nano-barium titanate at high temperature by using the method of sodium citrate reducing tetrachloroauric acid. The nBTO@Au prepared by this method has obvious osteogenesis and antibacterial properties. The application provides a high reactivity, catalytic and non-invasive immediate treatment mode for peri-implantitis, which has wide application potential in implant post-disinfection, peri-implantitis treatment and improving implant survival rate.

The application provides a method for preparing low-oxygen titanium powder by controllable sodium reduction, which comprises the following steps: filtering and purifying metal sodium through a molten sodium system to obtain purified sodium; placing molten salt containing TiCl2 in a reactor, vacuumizing and heating, then slowly adding the purified sodium to perform sodium reduction, and obtaining a mixture containing titanium powder after the reaction; crushing the mixture containing titanium powder into fine-grained material with a particle size of no more than 10 mm, washing the molten salt in the fine-grained material with deionized water and dilute hydrochloric acid solution, then washing with water until neutral, vacuum drying, and obtaining fine titanium powder; reducing the oxygen of the fine titanium powder in a hydrogen atmosphere by using magnesium and magnesium chloride, washing with dilute hydrochloric acid solution and deionized water, and finally vacuum drying to obtain low-oxygen titanium powder. 50 The particle size of the prepared low-oxygen titanium powder is 10-50 μm, D 50 is 20-30 μm, and the oxygen content is ≤1000 ppm.

The invention belongs to the technical field of food processing, and particularly relates to a low-sodium composite seasoning salt capable of regulating and controlling salty taste perception and a preparation method and application thereof.The preparation method comprises the following steps that sodium chloride and potassium chloride are co-crystallized to obtain a sodium potassium salt matrix, the sodium potassium salt matrix and a sodium alginate solution are subjected to spray crystallization, and hollow microsphere sodium potassium-sodium alginate is prepared; boiling and granulating the hollow microsphere sodium potassium-sodium alginate and the granulating feed liquid to obtain hollow granulated salt; a pH response material and a high-temperature-resistant wall material are used as double-layer wall materials, an acidulant is used as a core material, and the core material is wrapped by the wall material to obtain the microencapsulated acidulant. And adding a functional additive. The low-sodium composite seasoning salt disclosed by the invention is a precise integration of a multi-component functional system; a sodium potassium salt matrix provides a sodium reduction basis; the microencapsulated acidulant realizes dynamic regulation and control of the salty taste; the natural flavor enhancer optimizes flavor balance, realizes accurate control of the salty taste intensity in time, space and scene, and further promotes functional, personalized and sustainable upgrading of the food industry.

A method for preparing tantalum powder by reduction of potassium fluorotantalate with sodium, comprising: using metallic sodium as a reducing agent for reduction. Preferably, the temperature of the metallic sodium is above 180°C, more preferably 200-350°C, still more preferably 200-260°C, and most preferably 210-240°C. The present invention also relates to tantalum powder prepared by the method and a use thereof in a capacitor. By increasing the temperature of liquid metallic sodium, the morphology of tantalum powder is improved, and ultimately the specific capacitance and breakdown voltage of the tantalum powder are improved.

The invention discloses an implant piezoelectric nano coating as well as a preparation method and application thereof. The nanometer coating is composed of nanometer flower-shaped barium titanate and gold nanoparticles loaded on the surface of the nanometer flower-shaped barium titanate. According to the invention, gold nanoparticles are deposited on nano barium titanate at a high temperature by using a method of reducing tetrachloroauric acid by using sodium citrate, and nBTOatAu prepared by using the method has obvious osteogenesis and antibacterial properties. The invention provides a high-reactivity, catalytic and non-invasive immediate treatment mode for the peri-implantitis, and has wide application potential in the aspects of post-implant disinfection, peri-implantitis treatment and implant survival rate improvement.

Disclosed is a combined treatment method for laterite nickel ore hydrometallurgical slag and phosphating slag, the combined treatment method includes uniformly mixing a laterite nickel ore hydrometallurgical slag, a phosphating slag, and a sodium alkaline salt to obtain a mixed material; subjecting the mixed material to sodium reduction roasting to obtain a roasted material; leaching the roasted material with water and filtering to obtain a water leaching solution and a water leaching slag; subjecting the water leaching slag to magnetic separation to obtain an iron concentrate. In the disclosure, by mixing a laterite nickel ore hydrometallurgical slag and a phosphating slag and then performing sodium reduction roasting, the iron exists in the form of Fe3O4 and elements such as manganese and zinc exist in the slag in the form of oxides, and during the roasting process, aluminum oxides react with alkali to be converted into sodium aluminate.

The present invention relates to a potassium fluotantalate powder, a method for reducing same with sodium to produce tantalum powder, a tantalum powder obtained thereby, and the use thereof. The potassium fluotantalate powder is used as a raw material during the process of producing the tantalum powder by reducing potassium fluotantalate with sodium. The potassium fluotantalate powder comprises 5-1000 ppm (preferably 50-800 ppm, more preferably 100-850 ppm, more preferably 100-500 ppm, and more preferably 50-150 ppm and / or 300-500 ppm) of a halide salt of an alkaline earth metal, with the balance being potassium fluotantalate. The halide salt of the alkaline earth metal is selected from a halide salt of magnesium and / or a halide salt of calcium, e.g. magnesium chloride. The present invention also relates to a method for reducing the potassium fluotantalate powder with sodium to produce tantalum powder, the tantalum powder obtained thereby, and the use of the tantalum powder in capacitors.

The invention discloses a method for screening odorant substances with sodium reduction potential in edible mushroom Maillard products. The method comprises the following steps: firstly, preparing a coprinus comatus protein peptide Maillard reaction product; the method comprises the following steps: extracting volatile components of the salty and fragrant flavor compounds, respectively carrying out vacuum concentration, preliminarily establishing the association between the flavor and the basic taste by adopting a GC-MS / O-TA combined technology, and screening the potential salty and fragrant flavor compounds. Carrying out gradient dilution on the concentrated solution to obtain diluents with a series of concentrations, analyzing the odor active compounds in the system by adopting a GC-MS / O technology, and recording dilution factors (FD) of the odor active compounds; selecting potential salty and fragrant compounds, and calculating an odor activity value (OAVs); the key salty and fragrant compounds in the system are determined by integrating the FD and OAVs of the potential salty and fragrant compounds, and the salty increasing action mechanism of the salty and fragrant compounds is verified from the molecular level. The problems that in the prior art, the false positive of a screening result is high, key flavor perception characteristics are difficult to capture, and the analysis process is opaque are solved, and a more reliable salty taste enhancing substance screening strategy with a clear mechanism is provided.

The application discloses a combined treatment method for laterite nickel ore smelting slag and phosphating slag, and belongs to the technical field of hydrometallurgy. The combined treatment method comprises the following steps: uniformly mixing the laterite nickel ore smelting slag, the phosphating slag and a sodium alkaline salt to obtain a mixture; performing sodium reduction roasting on the mixture to obtain a roasted material; performing water leaching on the roasted material to obtain a water leaching solution and a water leaching residue through filtration; and performing magnetic separation on the water leaching residue to obtain an iron concentrate. The laterite nickel ore smelting slag and the phosphating slag are mixed and then subjected to sodium reduction roasting, so that iron exists in the form of Fe3O4, manganese and zinc exist in the form of oxides in the slag, and aluminum oxide is converted into sodium aluminate which is easy to dissolve in water by reacting with the alkali in the roasting process, and then the aluminum in the roasted material can be efficiently separated through subsequent water leaching; meanwhile, the reaction of phosphating zinc and phosphating manganese with the alkali also promotes the transformation of iron oxide from non-magnetic to magnetic, and then the iron can be efficiently recovered through subsequent magnetic separation.

The application provides a low-temperature preservation diluent for sperm of Epinephelus lanceolatus and a use method and application thereof. The diluent is prepared from the following raw materials: glucose, calcium chloride, potassium chloride, sodium chloride, sodium bicarbonate, reduced glutathione, sodium dihydrogen phosphate and fetal bovine serum. The diluent contains the following mass of raw materials per liter: 0.4-0.5 g of glucose, 0.03-0.08 g of calcium chloride, 0.15-0.25 g of potassium chloride, 3-4 g of sodium chloride, 1.5-2.0 g of sodium bicarbonate, 1.5-2.5 g of reduced glutathione, 0.008-0.012 g of sodium dihydrogen phosphate, and 8-12% of the fetal bovine serum in terms of the volume percentage of the diluent. The prepared diluent can better maintain the in-vitro activity of sperm, prolong the sperm preservation time, meet the low-temperature preservation requirements of the sperm of Epinephelus lanceolatus, and especially meet the low-temperature preservation requirements of the sperm of Epinephelus lanceolatus.

The invention relates to a method for enriching low-content rare earth in neodymium-iron-boron waste acid-soluble slag through low-temperature sodium modification reduction, which comprises the following steps: (1) mixing neodymium-iron-boron waste acid-soluble slag, a carbonaceous reducing agent and a sodium carbonate aid, and carrying out low-temperature sodium modification reduction roasting treatment to obtain a reduction product; and (2) the reduction product is sequentially subjected to mechanical crushing treatment and magnetic separation, and iron ore powder and rare earth enriched slag are obtained. By adding the sodium carbonate additive, the melting point of the system is reduced, the reaction process is accelerated, the solubility of a rare earth element enrichment phase is improved, efficient separation and enrichment of rare earth and iron elements are achieved, and subsequent extraction and utilization of rare earth elements are facilitated.

A process to reduce sodium content in a hydrocarbon stream, the process including contacting the hydrocarbon stream and a diluent to form a mixed stream; contacting the mixed stream and a macroporous cation exchange resin to form a processed stream; and collecting the processed stream, wherein the hydrocarbon stream includes a stream from phenol production and a stream from bisphenol-A production, and greater than 450 parts per million by weight of sodium, based on a total weight of the hydrocarbon stream; the diluent includes a C8-14 hydrocarbon and has a specific gravity of 0.8 to 1.0; the macroporous cation exchange resin has an average particle size of less than 1.5 millimeters, and an adsorption exchange capacity of greater than 2 H+ milliequivalents per milliliter; and the processed stream includes less than 50 parts per million by weight of sodium, based on a total weight of the processed stream.

The invention discloses a reducing peptide self-assembled fiber-ferrous nano-composite and a preparation method and application thereof.The method comprises the steps that EV-10 fibers and FeCl3. 6H2O are mixed according to the mass ratio of 1: 1, reaction is conducted for 5-8 hours at the temperature of 60-65 DEG C under the condition that the pH value is 1.5-2.0, and the reducing peptide self-assembled fiber-ferrous nano-composite is prepared; and the amino acid sequence of the EV-10 is EQSLVCQCLV. The reducing peptide self-assembled fiber-ferrous nano-composite disclosed by the invention is high in bioavailability, can resist degradation of gastric juice and is degraded in intestinal tracts, so that absorption of the intestinal tracts is improved; no sodium borohydride reducing agent raw material is contained, so that the safety to cells and tissues is good; the compound is good in stability, and the reducing peptide self-assembled fiber can protect reduced iron and is not easy to oxidize; the iron supplement agent has a good iron supplement effect and can be used as a safe and effective iron supplement agent. The process disclosed by the invention meets the requirements of green foods and has a wide industrial popularization prospect.

The invention relates to a treatment device, system and method for sodium reduction and quality improvement of coal, and the treatment device comprises a gas inlet pipeline which is used for conveying gasification waste gas generated by a coal chemical industry unit; the coal washing unit comprises a coal washing container, a coal supply container and a water storage container, the coal washing container is respectively connected with the gas inlet pipeline, the coal supply container and the water storage container, the coal supply container provides coal, the water storage container provides solvent water, and the coal washing container can receive second-metering gasified waste gas entering from the gas inlet pipeline; and the coal washing container can be used for washing coal by utilizing a mixture of gasified waste gas and water. According to the method, the acid mixture generated by carbon dioxide and water is used for cleaning the coal, the gasified waste gas generated by coal gasification is used as a continuous, sufficient and stable carbon dioxide source, and the coal chemical industry waste gas is used for washing the coal, so that the sodium-reducing and quality-improving effects of the coal can be improved, and the coal utilization is cleaner and more efficient; meanwhile, resource utilization of waste gas in the coal chemical industry is achieved, and multi-aspect environmental protection is achieved.

The invention relates to the technical field of medical preparations for injection and medicine packaging, and discloses sterile water containing sodium chloride and a preparation method thereof.The sterile water is composed of a basic osmotic pressure adjusting system, a buffer anti-oxidation system and a bacteriostatic system, and the sterile water comprises, by volume, 0.85-0.95% of sodium chloride, 0.35-0.95% of sodium chloride, 0.35-0.95% of sodium chloride and the balance water. 0.01%-0.05% of sodium dihydrogen phosphate; 0.02% to 0.1% of disodium hydrogen phosphate; 0.001%-0.01% of reduced glutathione, 0.001%-0.01% of a surfactant; 0.795% to 0.805% of benzyl alcohol; by optimizing the prescription ratio and adopting a specific process for preparation, the obtained sterile water finished product has excellent physical and chemical stability in long-term storage, and also has good antibacterial performance after unsealing, so that the safety and convenience of clinical use are greatly improved; therefore, the problems that traditional sterile water is insufficient in stability, prone to secondary pollution and complex in repeated administration operation are effectively solved.

Disclosed is a combined treatment method for laterite nickel ore hydrometallurgical slag and phosphating slag, the combined treatment method includes uniformly mixing a laterite nickel ore hydrometallurgical slag, a phosphating slag, and a sodium alkaline salt to obtain a mixed material; subjecting the mixed material to sodium reduction roasting to obtain a roasted material; leaching the roasted material with water and filtering to obtain a water leaching solution and a water leaching slag; subjecting the water leaching slag to magnetic separation to obtain an iron concentrate. In the disclosure, by mixing a laterite nickel ore hydrometallurgical slag and a phosphating slag and then performing sodium reduction roasting, the iron exists in the form of Fe3O4 and elements such as manganese and zinc exist in the slag in the form of oxides, and during the roasting process, aluminum oxides react with alkali to be converted into sodium aluminate.

The invention discloses a method for increasing saltiness by regulating myofibril-carrageenan protein gel through potassium ions and application, and relates to the technical field of food science and meat product processing, the method is realized by adding mixed salt of KCl and NaCl and kappa-carrageenan into pork, the mass percentage content of KCl in the mixed salt is 15-30%, the mass percentage content of NaCl is 70-85%, the mass percentage content of kappa-carrageenan in the kappa-carrageenan in the mixed salt is 10-30%, and the mass percentage content of kappa-carrageenan in the mixed salt is 10-30%. The addition amount of the kappa-carrageenan is 0.5-1% of the mass of the pork. The method is used for improving sodium ion dynamic release and salty taste perception of pork in the oral cavity processing process. The release behavior of sodium ions in the binary gel under the substitution condition of 20% KCl is mainly diffusion control, so that the salty taste perception in the chewing process is enhanced while the sodium reduction is realized; sensory evaluation results show that high scores are obtained in the aspects of texture, taste, overall preference and the like, the texture and salty taste perception of the pork product are effectively considered on the premise of ensuring salt reduction, and a new technical path is provided for formula optimization of the salt-reduced meat product.

The invention discloses a preparation method of low-sodium emulsified minced pork based on pH shift modified defatted peanut powder, which comprises the following steps: modifying the defatted peanut powder, adjusting the pH value back to 7 to obtain a modified defatted peanut powder dispersion liquid, dissolving sodium chloride, D-sodium erythorbate and sodium nitrite in the modified defatted peanut powder dispersion liquid, uniformly stirring, adding the modified defatted peanut powder dispersion liquid, and uniformly stirring to obtain the low-sodium emulsified minced pork based on pH shift modified defatted peanut powder. Uniformly stirring and cooling to obtain a mixed solution; putting the crushed tenderloin, the crushed pig backfat and the mixed solution into a chopper mixer for chopping to obtain minced pork; removing bubbles and then heating; and cooling to obtain the low-sodium emulsified minced pork. The use amount of sodium chloride in the minced pork processing process is reduced through the degreased peanut powder which is used as an ingredient in the preparation process of the minced pork by pH shift treatment, and the quality of the minced pork is reduced without reducing the sodium without reducing the emulsion. The pH migration treatment is relatively simple, complex equipment and high cost are not needed, the method has the advantage of cost effectiveness, and the cost can be reduced while the product quality is ensured.

This invention relates to a method for producing tantalum powder by sodium reduction of potassium fluorotantalate, and the tantalum powder obtained therefrom. The method for preparing tantalum powder by sodium reduction of potassium fluorotantalate is characterized by using preheated metallic sodium as a reducing agent. Preferably, the temperature of the metallic sodium exceeds 180°C, more preferably 200-350°C, even more preferably 200-260°C, even more preferably 160-190°C and / or 210-240°C. This invention also relates to the tantalum powder thus produced and its use in capacitors.

The invention relates to a method for producing tantalum powder by reducing potassium fluotantalate with sodium and the prepared tantalum powder. The method for preparing the tantalum powder through sodium reduction of the potassium fluotantalate is characterized in that preheated metal sodium is used as a reducing agent for reduction, and preferably, the temperature of the metal sodium exceeds 180 DEG C, more preferably 200-350 DEG C, more preferably 200-260 DEG C, more preferably 160-190 DEG C and / or 210-240 DEG C. The invention also relates to the tantalum powder thus produced and to the use thereof in capacitors.