1012 results about "Sodium salt" patented technology

The invention provides a sodium ion battery, an energy storage device and an energy storage system. The sodium ion battery comprises a positive pole piece, a diaphragm, a negative pole piece and an electrolyte, the negative pole piece comprises a carbon material, the specific surface area of the carbon material is x, the carbon material comprises mesopores, the number percentage of the mesopores in the carbon material is y, and the electrolyte comprises an organic solvent, an electrolyte salt, an organic additive and a sodium salt additive, the organic solvent comprises cyclic carbonate and chain carbonate, the mass fraction of the cyclic carbonate in the electrolyte is a, the mass fraction of the chain carbonate in the electrolyte is b, the mass fraction of the organic additive in the electrolyte is c, and the mass fraction of the sodium salt additive in the electrolyte is d; the sodium ion battery meets the relational expression of 0.4 < = a / y < = 0.8; 0.5 < = a / b < = 1.3; 0.4 < = c / x < = 1.2; and 0.1 < = d / c < = 0.5.

The invention discloses an efficient wet desulfurization synergist and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The efficient wet desulphurization synergist comprises the following raw materials in parts by weight: 10-20 parts of sodium formate, 5-10 parts of citric acid, 20-30 parts of binary acid, 5-6 parts of a surfactant, 15-20 parts of magnesium salt, 12-18 parts of sodium salt and 2-5 parts of a pH buffer agent. The preparation method comprises the following steps: reacting cyanuric chloride with lauryl amine to generate a monosubstituted compound; then reacting with L-asparaginic acid to generate a disubstituted compound; reacting with diethylenetriamine to generate a bis-triazine ring compound; and finally, reacting with sodium 2-chloroethanesulfonate to generate the surfactant. The high-efficiency wet desulphurization synergist prepared by the invention has a desulphurization effect.

The invention belongs to the technical field of phosphoric acid purification, and particularly relates to a removing agent and a removing method for heavy metal cadmium in phosphoric acid. The removing agent comprises a solvent, a thiophosphoric acid trapping agent A and a thiophosphoric acid trapping agent B, wherein the thiophosphoric acid trapping agent A and the thiophosphoric acid trapping agent B are dispersed in the solvent; the thiophosphoric acid trapping agent A and the thiophosphoric acid trapping agent B are different types of thiophosphoric acid trapping agents and are respectively and independently selected from one of alkyl dithiophosphoric acid or salts thereof, phenolic dithiophosphoric acid or salts thereof and amino dithiophosphoric acid or salts thereof; and at least one hydrocarbyl dithiophosphoric acid or salt thereof is selected; the salt is sodium salt or ammonium salt; the solvent is water or an alkaline aqueous solution. According to the method, a composition of a dithiophosphoric acid trapping agent is used as a removing agent for cadmium in wet-process phosphoric acid, a precipitate which is insoluble in a strongly acidic water phase is generated after reaction, and phosphoric acid cadmium removal is realized after filtration. Compared with a conventional sulfide precipitation method, the method provided by the invention has the advantages of less cadmium residue in phosphoric acid and less pollution.

The invention belongs to the field of fermentation, and particularly relates to a complex microbial inoculant, original cheese, processed cheese with a blood sugar reducing function and preparation and application of the complex microbial inoculant. Wherein the processed cheese is prepared by the method comprising the following steps: mixing the components including raw cheese, sugarcane juice, corn oil, casein, concentrated milk protein, blueberry powder, mono / diglycerol fatty acid ester, sodium citrate, sodium tripolyphosphate, sodium hexametaphosphate, salt guar gum, potassium sorbate and water, and then emulsifying to obtain the processed cheese, the sugar cane juice, the corn oil, the casein, the concentrated milk protein, the blueberry powder, the mono / diglycerol fatty acid ester, the sodium citrate, the sodium tripolyphosphate, the sodium hexametaphosphate, the salt guar gum, the potassium sorbate and the water, the original cheese is prepared from a complex microbial inoculant, and the complex microbial inoculant comprises lactococcus lactis bacterial powder, lactococcus lactis subsp. Lactis bacterial powder, lactobacillus delbrueckii subsp. Lactis bacterial powder, lactobacillus plantarum bacterial powder and lactobacillus paracasei bacterial powder. The processed cheese provided by the invention has a better function of controlling blood sugar, and meanwhile, the processed cheese is fine and uniform in texture and has good smearing performance.

The invention relates to a preparation method of a rice leavening with a scalp care effect and a product and application thereof, the preparation method comprises the following steps: mixing a rice raw material, a plant raw material, water, a magnesium salt, a sodium salt and Tween, sterilizing to obtain a fermentation medium, inoculating a compound microbial agent into the fermentation medium, and fermenting to obtain the rice leavening with the scalp care effect. After the fermentation liquid is finished, sterilizing and filtering to obtain a rice leavening; wherein the compound microbial agent comprises a first microbial strain and a second microbial strain; the strains in the first microbial strain comprise a combination of streptococcus thermophilus, bifidobacterium breve and a plant lactobacillus YK-L002 strain; and the second microbial strain comprises a trichosporon YK-S004 strain. According to the invention, specific strains are subjected to compounding and combined fermentation, and the fermentation product filtrate obtained after fermentation treatment of four bacteria has excellent hair care and nourishing effects, and can effectively condition the scalp micro-ecological environment and nourish the hair quality.

The invention discloses a preparation method of a carbon-coated single-crystal sodium ferric pyrophosphate positive electrode material, which is specifically implemented according to the following steps: step 1, dissolving sodium salt, ferric salt and phosphate in deionized water in proportion, then adding a carbon source into the solution, and uniformly stirring to obtain a mixed solution; step 2, fully drying the mixed solution obtained in the step 1 to obtain precursor powder; and 3, carrying out heat treatment on the precursor powder in a protective atmosphere, and cooling to obtain the carbon-coated single-crystal sodium ferric pyrophosphate positive electrode material. The invention also discloses a coating prepared by the method, a single-crystal structure is combined with uniform carbon coating, grain boundary defects are eliminated, conductivity is improved, high specific capacity and long cycle life are realized, single-crystal growth and carbon layer in-situ coating are synchronously realized by a synthesis process, and structural integrity and efficient conductive network construction can be ensured.

The invention relates to the technical field of quartz sand purification processing, in particular to a purification process for improving the sodium ion removal rate of high-purity quartz sand. The technology aims at solving the technical problems that when soluble sodium salt and lattice embedded state sodium (such as Al < 3 + > charge compensation type) coexist in high-purity quartz sand, removal is not thorough through a traditional technology, and precipitates are likely to be generated. Efficient removal is achieved through a hydrothermal dissolution-acid pickling impurity removal-flotation separation synergistic mechanism. Firstly, soluble sodium salt is dissolved out preferentially under the hydrothermal condition of 65 DEG C, so that it is avoided that in subsequent acid pickling, HF reacts with the sodium salt to generate Na2SiF6 sediment; then, an HF-HCl mixed acid system is adopted to selectively etch lattice channels at 70 DEG C and open a gas-liquid inclusion, so that embedded sodium is promoted to migrate and dissolve out; and finally, separating sodium-containing gangue (such as albite) exposed by pickling through flotation. According to the process, the hydrothermal times (2-3 times) can be dynamically adjusted according to the ore characteristics, stable production of semiconductor-grade quartz sand is achieved with low energy consumption which saves more than 30% of energy compared with a chloridizing roasting process, and the process is suitable for high-valued utilization of domestic vein quartz ore.

The invention discloses a preparation method of salt-resistant sodium carboxymethyl cellulose, and relates to the technical field of petroleum fracturing materials. The preparation method comprises the following steps: reacting stearic acid with ethylenediamine to obtain a monosubstituted intermediate, reacting the monosubstituted intermediate with cocoyl chloride to obtain an intermediate 1, reacting the intermediate 1 with epoxypropane to obtain an intermediate 2, and reacting the intermediate 2 with paratoluensulfonyl chloride to obtain a hydrophobic intermediate; reacting a sodium carboxymethyl cellulose solution with the hydrophobic intermediate to obtain modified sodium carboxymethyl cellulose, and sulfonating the modified sodium carboxymethyl cellulose with sulfamic acid to obtain crude salt-tolerant sodium carboxymethyl cellulose; and reacting the crude product salt-resistant sodium carboxymethyl cellulose with borax to obtain the salt-resistant sodium carboxymethyl cellulose. The salt-resistant sodium carboxymethyl cellulose prepared by adopting a step-by-step synthesis strategy has excellent salt resistance, temperature resistance, shearing resistance and dissolution rate, and is suitable for thickening and sand carrying of high-temperature and high-salt oil and gas field fracturing fluid.

The invention relates to the technical field of polymer compositions, and particularly discloses a degradable bio-based food packaging material and a preparation method thereof.The degradable bio-based food packaging material is prepared from polylactic acid, ITA esterified bacterial cellulose, CSL-ITA esterified bacterial cellulose, polycaprolactone glycol, acetyl tributyl citrate, a photoinitiator and tocopherol; the preparation method comprises the following steps: esterifying bacterial cellulose hydrogel with itaconic anhydride, grafting with sodium copper chlorophyllin, dehydrating with gradient ethanol, and drying with supercritical CO2 to obtain modified powder; according to the preparation method, the interfacial compatibility of the bacterial cellulose and the polylactic acid is enhanced through ITA esterification, the illumination antibacterial function is given by utilizing CSL grafting, the polycaprolactone glycol and the acetyl tributyl citrate are synergistically used for toughening and improving the brittleness, the photoinitiator is added, the photoinitiator is added for mixing, and ultraviolet crosslinking curing is performed after film forming. The tocopherol protects the stability of the antibacterial structure of the CSL, the water resistance is improved through photo-crosslinking, and the material is degradable and meets the food packaging requirement.

The invention provides a hierarchical porous silicon material and a preparation method thereof, and belongs to the technical field of comprehensive utilization of fly ash. The preparation method of the hierarchical porous silicon material provided by the invention comprises the following steps: mixing fly ash and an activating agent, and calcining to obtain activated fly ash; the activating agent comprises at least one of sodium salt and potassium salt; and mixing the activated fly ash with hydrochloric acid, and carrying out acid etching to obtain the hierarchical porous silicon material. According to the invention, at least one of sodium salt and potassium salt is adopted to activate the fly ash, and at least one of Na < + > and K < + > in the activation process can promote the conversion of mullite in the fly ash to different mineral phase aluminosilicate, so that a nepheline structure of Na and / or K is formed; and then hydrochloric acid is adopted for acid etching, and the alumina component can be selectively etched, so that the hierarchical pore channel is constructed, the process is simplified, and template-free preparation of the hierarchical pore silicon material is realized.

The invention provides a low-temperature sodium ion electrolyte and a preparation method and application thereof, the low-temperature sodium ion electrolyte comprises a sodium salt, an organic solvent and an additive, the additive is triisopropyl silyl trifluoromethanesulfonate, and the sodium salt is sodium trifluoromethanesulfonate. Triisopropyl silyl trifluoromethanesulfonate molecules are used as an electrolyte additive for the low-temperature sodium ion electrolyte, so that further decomposition of sodium salt in the electrolyte can be effectively promoted, stable SEI containing more sodium fluoride is formed to promote mass transfer of sodium ions at low temperature, and finally, a sodium ion battery can effectively circulate at low temperature.

The invention belongs to the technical field of health-care food, and particularly relates to a composition and oral drops with the effects of dispelling the effects of alcohol, protecting the liver and relieving hangover as well as a preparation method and application of the composition and the oral drops. The invention provides a composition taking silybin eutectic crystal, curcumin eutectic crystal, ampelopsis grossedentata extract, pyrroloquinoline quinone disodium salt, reduced glutathione, alpha-ketoglutaric acid, vitamin, hericium erinaceus extract, frankincense extract, licorice extract and the like as main active ingredients, and the composition is subjected to scientific formula screening and functional verification, and has the advantages that the composition has the obvious curative effect, and the curative effect is obvious; the traditional Chinese medicine composition can effectively improve the metabolism of ethanol, protect liver and gastric mucosa, and is helpful for relieving hangover-related symptoms such as fatigue, thirst, sleepiness, headache, dry mouth, stomachache, nausea, hypomnesis, inattention and the like.

The invention discloses a continuous preparation method of sodium tanshinone IIA sulfonate based on a single-tube thin-layer liquid membrane reactor. Comprising the following steps: (1) dissolving tanshinone IIA in an organic solvent as a feed liquid; (2) reacting gas-phase sulfur dioxide with air, and cooling to obtain sulfur trioxide mixed gas; (3) enabling the feed liquid and sulfur trioxide mixed gas to enter a single-tube thin-layer liquid membrane reactor in a parallel flow or reverse flow manner, and carrying out continuous sulfonation reaction to obtain reaction liquid; and (4) adding a sodium salt aqueous solution into the reaction solution to carry out salt forming reaction, centrifuging, drying and purifying to obtain the tanshinone IIA sodium sulfonate. According to the invention, a novel method is adopted to carry out sulfonation reaction on tanshinone IIA, and sulfur trioxide is basically completely consumed after the reaction is finished, so that the generation of waste acid is greatly reduced, and the method has important significance on environmental protection and cost reduction. The green, safe, efficient and continuous preparation of the high-purity tanshinone IIA sodium sulfonate is realized.

The invention discloses an electrolyte and a sodium ion battery containing the electrolyte. The electrolyte comprises a sodium salt, an organic solvent and an additive, the organic solvent is an ether solvent; the additive is selected from non-sodium metal salts; the non-sodium metal salt is selected from at least one of a first additive, a second additive or a third additive; wherein the first additive is lithium metal salt; the second additive is magnesium metal salt; the third additive is aluminum metal salt. According to the electrolyte, the electrochemical window of the electrolyte can be improved, and the low-temperature capacity retention ratio and the cycle performance of the electrolyte can be improved.

The invention discloses a method for preparing a NaFeO2 material and leaching copper, zinc and molybdenum from copper slag, and relates to the technical field of metallurgical solid waste resource utilization. The method comprises the following steps: grinding the copper slag, mixing the ground copper slag with a sodium salt, roasting the mixture in a muffle furnace at a proper temperature, and finally carrying out ultrasonic washing and filtering on the roasted product to obtain filter residues and filtrate; and drying filter residues to obtain a high-purity NaFeO2 material, and recovering valuable metals such as copper, zinc and molybdenum from filtrate. In the washing process, valuable metal elements copper, zinc and molybdenum in the copper slag are efficiently leached into the solution, the leaching rate reaches 96% or above, and synchronous recovery of the valuable elements is achieved; according to the method, the industrial waste residue copper slag is successfully converted into the NaFeO2 product with the high additional value, meanwhile, valuable metal is efficiently extracted, the method has the advantages of being simple in process, low in cost, high in recycling degree and environmentally friendly, a new way is opened up for high-value utilization of the copper slag, and the method has good industrial application prospects.

The invention provides a composition for delaying senescence by activating telomerase activity. The composition is prepared from the following raw materials in parts by weight: 12.5 parts of wheat germ concentrated powder, 0.25 to 5 parts of ergothioneine, 0.25 to 5 parts of pyrroloquinoline quinone disodium salt and 0.25 to 5 parts of alpha-ketoglutaric acid. The invention further provides a preparation method and application of the composition for delaying senescence by activating telomerase activity. Through the synergistic effect of the ergothioneine and the pyrroloquinoline quinone disodium salt, the telomerase activity can be activated, the telomerase expression can be improved, the telomere length can be maintained, and the effect of delaying senescence can be achieved, so that the functional metabolism of a human body can be promoted, and the health state of the body can be improved; through the synergistic effect of the wheat germ concentrated powder and alpha-ketoglutaric acid, cell aging can be delayed; through the multi-target synergistic effect of'telomerase activation + mitochondrial repair + autophagy enhancement ', the anti-aging effect is delayed, the metabolic capability is high, the anti-aging effect is good, and safety and high efficiency are achieved; belongs to the technical field of food and health care product processing.

The invention relates to the technical field of battery sodium supplementation agents, in particular to a sodium supplementation agent with a core-shell structure, a preparation method and a positive pole piece. The preparation method comprises the following steps: providing a core material containing sodium salt; a first coating process: providing a first coating material containing organic fluorine, mixing the core material containing the sodium salt with the first coating material, and performing first sintering to obtain a primary coating coated with a first coating layer; and a second coating process: providing a second coating material containing a carbon source, mixing the second coating material with the primary coating, and carrying out second sintering to obtain the sodium supplement which is coated with a first coating layer and a second coating layer and has the core-shell structure. The invention provides the sodium supplementing agent with the core-shell structure, the preparation method and the positive pole piece, so that the problem of poor sodium supplementing performance of the sodium supplementing agent in the related technology is solved.

The invention relates to a liquid detergent composition comprising a first surfactant selected from fatty alcohol ether sulfates, a second surfactant selected from betaines, optionally at least one solvent selected from ethanol, propanol, isopropanol, ethylene glycol, butyl glycol, propylene glycol, polypropylene glycol, alcoholamine, monoethanolamine, glycerol and mixtures thereof, wherein the salt concentration in the composition is about 0.2 to about 10 wt.-% and wherein the salt is selected from the group consisting of sodium salts such as sodium chloride, sodium sulfate, sodium formate, sodium acetate or sodium propionate, potassium salts such as potassium chloride, potassium sulfate, potassium formate, potassium acetate or potassium propionate, magnesium salts such as magnesium chloride, magnesium sulfate, magnesium formate, magnesium acetate or magnesium propionate, and calcium salts such as calcium chloride, calcium sulfate, calcium formate, calcium acetate or calcium propionate, and mixtures thereof, and wherein the composition is a concentrate that can be diluted with water while maintaining or increasing the viscosity.The present invention further relates to the use of such a cleaning composition for cleaning hard surfaces, in particular dishes, and to a process for preparing a cleaning composition, the process comprising diluting the concentrated liquid cleaning composition with water.

The invention provides a doped ferric sodium pyrophosphate material as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, blending ferrite, phosphate, strong acid and an antioxidant to form a solution A; s2, adding doped metal salt, sodium salt and a chelating agent into the solution A to form a solution B; s3, co-dropwise adding the solution B and the coprecipitation solution into grinding equipment, and maintaining the pH value to be 4.5-5.5 in the grinding process; s4, mixing and stirring the reaction product and water to form a suspension, and freeze-drying to obtain a precursor material; and S5, mixing the precursor material with a carbon source, and performing high-temperature heat treatment to obtain the doped ferric sodium pyrophosphate material. The material has excellent electrochemical performance, high compaction density and regular product morphology.

The invention discloses a soil turning device applied to saline-alkali soil facility soil improvement, and relates to the technical field of soil turning devices, the soil turning device comprises a soil turning assembly and a soil turning frame, a soil pressing part is fixed on the surface of the soil turning frame, and an active driving part is fixed at the bottom of the soil turning frame. Through collaborative design of the soil turning assembly and the spraying assembly, the obvious defects that single improvement liquid is limited and pressed soil is not matched with the soil state are effectively overcome, dynamic adjustment of the spraying angle and flow is achieved, the improvement requirements of different saline-alkali soil types such as a sodium salt type and a soda type can be precisely met, and the application range is wide. Meanwhile, through the functions of multi-chamber independent storage and on-demand proportioning, the use limitation of a single improvement liquid is broken through, the utilization efficiency of the improvement liquid and the soil improvement uniformity are improved, and invalid energy consumption increased due to mismatching of the soil pressing effect is avoided; and a key technical support is provided for long-term and precise upgrading of saline-alkali soil facility soil improvement.

The invention belongs to the technical field of tertiary oil recovery, and particularly relates to a temperature-resistant and salt-resistant thickened oil viscosity-reducing oil-displacing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: adding nonyl phenol, DMF (Dimethyl Formamide) and epoxy halopropane into a reactor, stirring and dissolving, carrying out a heat preservation reaction, and carrying out reduced pressure distillation to obtain a viscous solid; adding isopropanol into the viscous solid for dissolving, adding 8-aminonaphthalene-1, 3, 6-trisulfonic acid disodium salt, heating and refluxing for reaction, and performing reduced pressure distillation to obtain a viscous solid; and adding distilled water, heating for dissolving, filtering, adjusting the pH value, separating out solid, standing, separating out supernate, centrifuging the lower-layer solid, concentrating, and drying to obtain the product, namely the viscosity-reducing oil-displacing agent for the thickened oil. The viscosity-reducing oil-displacing agent for the heavy oil has the characteristics of low surface and interface tension, low critical micelle concentration and good viscosity-reducing effect.

The invention belongs to the technical field of grouting materials, and particularly relates to a quick-setting early-strength self-stress functional grouting material and an expansibility testing method. The existing cement-based anchoring agent or mine filling body top-contacting agent and fractured rock mass grouting reinforcing agent have the phenomena of poor coupling effect, volume shrinkage and the like. The grouting material is composed of a component A and a component B, the component A mainly comprises sulphoaluminate cement, a water reducing agent, a retarder, a sodium salt accelerator and fibers, and the component B mainly comprises anhydrite, quicklime, a water reducing agent, an early strength agent, aluminum powder, a retarder and fibers. When in use, the mass ratio of the main components of the component A to the component B is (0.85-1.15): 1, and the water-cement ratio is (0.6-1.2): 1. When the water cement ratio is low (0.6-0.8: 1), the material can be used as an anchoring agent of an anchor rod; when the water-cement ratio is high (0.8-1.2): 1, the grouting agent can be used as a mine filling body top-contacting agent and a fractured rock mass grouting reinforcing agent; the invention further provides a simple testing method for the volume expansion rate and the expansion stress. And the method has obvious engineering application value.

The application discloses a meat protein emulsion with low-sodium and low-oil phase characteristics for 3D printing and a preparation method and application thereof. The application utilizes anionic polysaccharide xanthan gum and L-arginine to synergistically stabilize the low-sodium and low-oil phase meat protein emulsion, and improves the 3D printing performance thereof. The xanthan gum and L-arginine enhance the stability and rheological properties of the emulsion by inducing the unfolding of meat protein structure and reducing the oil-water interfacial tension. The xanthan gum can also prevent the aggregation of droplets by constructing a weak gel network in the water phase and providing negative charges. Therefore, the meat protein emulsion stabilized by the synergistic action of the xanthan gum and L-arginine overcomes the problems of poor emulsion stability and inability to print caused by partial replacement of sodium salt and low oil phase, and endows the meat protein emulsion with good viscoelasticity, thixotropic recovery performance and self-supporting property, thereby realizing high-fidelity printing. The application recommends the dual use of the xanthan gum and L-arginine, which can not only reduce the intake of sodium and oil to ensure health, but also help produce high-quality or personalized muscle protein food.

The invention relates to the technical field of electroplating, in particular to a nickel stripping agent, a preparation method of the nickel stripping agent and a nickel plating layer stripping method. The nickel stripping agent comprises the following raw materials: an oxidizing agent, a complexing agent, a dissolution promoter, a surfactant and a corrosion inhibitor, wherein the mass ratio of the oxidizing agent to the complexing agent to the dissolution promoter to the surfactant to the corrosion inhibitor is (4-15): (3-25): (1-11): (0.01-1): (0.01-5); wherein the oxidizing agent is nitrobenzoic acid; the complexing agent is one or more of 2-amino-2-methyl-1-propyl alcohol, acetylacetone, nitrilotriacetic acid, nitrilotriacetic acid sodium salt, acrylate, sodium gluconate and ethylenediamine hydrochloride; the dissolution promoter is an alcohol ether solvent. According to the nickel stripping agent, the oxidizing agent with relatively low toxicity and a non-toxic or low-toxicity non-volatile complexing system are adopted, nickel can be completely removed, a base material cannot be eroded, and the threat to the health of operators can be remarkably reduced.

A method and equipment for recycling alumina red mud. First, the alumina red mud is added to a mixed acid of hydrochloric acid and sulfuric acid for reaction to dissolve metals such as iron, aluminum, calcium, sodium, and a small amount of zinc, copper, magnesium, etc., and the solid silicon dioxide is left to be separated as building materials or glass raw materials; after the solution is collected, ammonium bicarbonate is added to obtain aluminum, calcium, and some metal precipitates and separated. Iron and sodium remain in the solution and continue to react with sodium hydroxide to obtain iron hydroxide precipitate and separate out sodium salts. After evaporation of the concentrated solution, iron oxide is obtained as a raw material for steel production; the aluminum, calcium, and other metal precipitates are added to sulfuric acid with a concentration of 90-98% for reaction. After all are dissolved, the solution is subjected to membrane separation and then carbonates are added to obtain calcium carbonate precipitate as a raw material for cement production; after evaporation of the concentrated solution, high-purity alumina is obtained and sent to an aluminum processing plant to produce pure aluminum or aluminum alloy products; the separated sodium salt solution is evaporated to be used as industrial and agricultural salt; the acid mist and harmful gases in the reactor process are treated by an absorption tower and then discharged. The present invention can make full use of the iron oxide, alumina, and effective components of alumina red mud, solves the problem of environmental pollution caused by the large amount of piled-up alumina red mud at present, has a low cost, and is suitable for the current alumina production plants.

The invention relates to a compound NMNH calcium salt, in particular to an amorphous form of a reduced β-nicotinamide mononucleotide calcium salt, a preparation method therefor, a use thereof as a pharmaceutical ingredient, a health care product ingredient and a cosmetic ingredient or as a food additive, and a formulation containing the salt, belonging to the field of medicines, health care products, cosmetics and food additives. Specifically, described in the invention is a NMNH calcium salt amorphous compound. The compound shows long-term continuous stability, and compared with NMNH disodium salt, has significantly superior oxidation resistance and stability, and anti-hygroscopic properties, and is more beneficial to long-term 10 storage, promotion and market application. The NMNH calcium salt amorphous compound is simple in preparation process, easy to control and suitable for large-scale production.

The present disclosure relates to the technical field of batteries. Disclosed are an electrolytic solution, a sodium-ion battery and an electric device. The electrolytic solution comprises a sodium salt, an organic solvent and a first additive. The first additive is a compound represented by formula (I), wherein R1, R2 and R3 are each independently selected from fluorine-containing substituents.

The invention relates to the technical field of cleaning agents, and particularly discloses a composite cleaning agent as well as a preparation method and application thereof. The composite cleaning agent comprises the following raw material components in percentage by mass: 5%-10% of inorganic particles, 5%-15% of a surfactant, 15%-30% of a cleaning aid and the balance of water, wherein the surface active agent is prepared from rhamnolipid, fatty acid methyl ester ethoxylate, cocamidopropyl betaine and sophorolipid; the inorganic particles comprise soluble sodium salt and nano silicon dioxide; the cleaning auxiliary agent comprises a geranium extracting solution, a herba portulacae extracting solution, lauric acid and glycerol. The composite cleaning agent is simple in raw material components, simple and convenient in preparation method, low in cost and free of secondary pollution to the environment. The composite cleaning agent effectively solves the problems that an existing train cleaning agent is poor in cleaning effect, complex in manufacturing process and unfriendly to the environment.

The invention discloses a spherical Prussian blue material as well as a preparation method and application thereof. The preparation method comprises the following steps: enabling a mixed reaction system containing soluble transition metal hexacyanoid salt, soluble transition metal salt, a complexing agent, soluble sodium salt, a surfactant and a carbon sphere precursor to react, and then selectively performing or not performing aging treatment to prepare the spherical Prussian blue material. According to the preparation method provided by the invention, the spherical Prussian blue material is obtained by regulating and controlling the reaction raw materials and the reaction steps, so that the rate capability and the cycle stability of the Prussian blue material are improved, and the problem that the compaction density and the compaction density are reduced due to the fact that the rate capability of a Prussian blue cube is improved due to carbon coating is solved.

An electrolyte, a sodium secondary battery and an electric device. The electrolyte comprises a first sodium salt and a first solvent, wherein the first sodium salt comprises sodium trifluoromethanesulfonate, and the first solvent has a structure as shown in formula I, with the mass ratio of the first sodium salt to the first solvent being 0.01-0.4. The electrolyte has a good low-temperature ionic conductivity, which is beneficial for improving the low-temperature cycling performance and low-temperature coulombic efficiency of the battery.