155 results about "Sodium Phytate" patented technology

The invention provides well killing fluid for preventing carbon dioxide gas channeling and a preparation method and application thereof, and relates to the technical field of oil and gas exploitation. The kill fluid for preventing carbon dioxide gas channeling comprises polyethylene glycol, sodium humate, sodium lignin sulfonate and paraformaldehyde, polyethylene glycol is used as a main raw material, sodium humate, sodium lignin sulfonate and paraformaldehyde are compounded, polyethylene glycol cannot be degraded after encountering carbon dioxide acid gas, and the carbon dioxide gas channeling is prevented. Paraformaldehyde plays a role of a cross-linking agent in a well killing fluid solution, other raw materials are cross-linked together to form gel with a net-shaped body structure, and the viscosity of the well killing fluid is increased to prevent gas channeling. The well killing fluid for preventing carbon dioxide gas channeling is not affected by acid-base gas and not limited by unbalanced formation pressure, and when the well killing fluid encounters carbon dioxide gas, carbon dioxide can be rapidly captured, reacts with other raw materials in the well killing fluid and blocks a gas channeling layer.

The invention relates to a special organic compound fertilizer for alfalfa as well as a preparation method and application thereof, and relates to the technical field of organic fertilizers, the special organic compound fertilizer for alfalfa comprises the following components in parts by weight: 50-60 parts of a basic organic fertilizer, 20-30 parts of a sodium humate-seaweed compound, 15-20 parts of modified phosphorus-potassium ore powder, 0.5-1 part of a phosphate-solubilizing bacterium agent and 0.5-1 part of an alfalfa rhizobium agent. On the basis of the existing basic organic fertilizer, the sodium humate-seaweed compound and the modified phosphorus-potassium ore powder loaded with the appropriate fungicide are mainly added, so that the yield of the alfalfa is remarkably increased, and the special organic compound fertilizer can be used as the special organic compound fertilizer for the alfalfa and is wide in application.

The invention relates to the technical field of soil remediation, in particular to a biochar-humic acid-calcium alginic acid composite saline-alkali soil modifier and a preparation and application method thereof. The modifier adopts a multi-layer structure design: biochar is pre-adsorbed by calcium chloride, compounded with sodium humate, and then crosslinked with sodium alginate to form a gel to form a composite inner core; secondly, sulfobetaine methacrylate and vinyl phosphonic acid are introduced into a sodium alginate molecular chain through graft polymerization, and modified sodium alginate is obtained to serve as an outer layer coating material; and finally, dipping the composite inner core into the outer layer solution, and carrying out graded recalcification by calcium chloride and short-time treatment by sodium sulfate to obtain a final product. Through the synergistic effect of calcium ion slow release of the inner core and zwitterionic characteristics of the outer layer, efficient replacement and long-term stable regulation and control of soil sodium ions are achieved, the pH value, the conductivity and the alkalization degree of soil are remarkably reduced, the water holding capacity is effectively improved, and the soil conditioner is suitable for sustainable improvement of moderate and severe saline-alkali soil.

The invention relates to the technical field of plant extraction, in particular to a preparation method of a plant cell exosome, the plant cell exosome and application of the plant cell exosome. The preparation method comprises the following steps: after the surface of a plant leaf is scratched, inoculating the plant leaf into a first culture medium for induction culture, then transferring the plant leaf into a second culture medium for subculture to obtain a callus, and then adding the callus into a buffer solution for grinding to obtain a filtrate; centrifuging the filtrate again to obtain supernate; and adding an exosome complexing agent into the supernate, incubating overnight, centrifuging, and freeze-drying to obtain the exosome. The first culture medium comprises an MS culture medium and the following components added into the MS culture medium: pullulan, 2, 4-D, agar and NAA; the second culture medium comprises an MS culture medium and the following components added into the MS culture medium: pullulan, 2, 4-D, agar, NAA and sodium phytate. The preparation method can increase the protein content in the exosome.

The invention relates to the technical field of agricultural fertilizers, in particular to an organic-inorganic composite silicon-calcium-magnesium fertilizer and a preparation method and application of the organic-inorganic composite silicon-calcium-magnesium fertilizer. The high-temperature activated silicon-calcium-magnesium mineral powder is composed of calcined wollastonite powder, calcined serpentine powder, dolomite powder and zeolite powder; 2%-5% of an organosilane modifier, wherein the organosilane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane, and the organic silane modifier is composed of gamma-aminopropyl triethoxy silane and gamma-glycidyl ether oxypropyl trimethoxy silane; 18%-35% of a functional organic matter complex, wherein the functional organic matter complex is composed of mineral source sodium humate, bioactive small peptide, sodium alginate and polyglutamic acid; and 3%-8% of auxiliary functional components, so that the solubility and the bioavailability of silicon, calcium and magnesium elements in minerals are remarkably improved.

The invention discloses a combined inhibitor for high-mud-content scheelite flotation and application, belongs to the technical field of scheelite flotation, and aims to solve the technical problems that in the high-mud-content scheelite flotation process, argillaceous particle adsorption agents and gangue inhibition are not thorough, and an existing inhibitor is poor in selectivity, large in dosage and the like. The combined inhibitor comprises tannic acid / sodium humate and metal ions and is matched with the pH regulator to form a flotation reagent system, the collecting agent is prepared by compounding sodium oleate, oxidized paraffin soap and sodium dodecyl benzene sulfonate according to the mass ratio of 3: 1: 1, and the foaming agent is MIBC or terpenic oil. Through the synergistic effect of tannic acid / sodium humate-metal ions, mud dispersion and inhibition of fluorite and calcite can be synchronously achieved, and flotation of scheelite with the high mud content is enhanced; through one-stage roughing, three-stage scavenging and three-stage heating concentration, the grade and the recovery rate of WO in scheelite concentrate are improved, and the method is low in reagent dosage, environmentally friendly and suitable for industrial production.

The invention discloses a rare-earth flame-retardant heat stabilizer for a PVC (polyvinyl chloride) sheet, the PVC sheet and a preparation method of the rare-earth flame-retardant heat stabilizer. The heat stabilizer takes the sodium phytate modified magnesium-aluminum-lanthanum rare earth hydrotalcite as a main component, has the functions of heat stability and flame retardance, and takes industrial inorganic solid wastes such as the fly ash and the rare earth smelting waste residues as inorganic fillers, so that a synergistic effect is formed, and the overall heat stability and flame retardance of a composite system are improved. The prepared rare earth flame-retardant heat stabilizer can be efficiently applied to preparation of PVC sheets, endows the sheets with good heat stability, flame retardance and mechanical properties, and meets the safety and performance requirements in the fields of indoor decoration, building materials, floor covering and the like. And meanwhile, the prepared environment-friendly PVC sheet is beneficial to realizing resource regeneration and comprehensive utilization of industrial solid wastes, and the problems of land occupation, environmental pollution and the like caused by current solid waste hoarding are effectively relieved.

The invention belongs to the technical field of fine chemical engineering, and discloses hydroxypropyl crosslinked starch as well as a preparation method and application thereof. The preparation method of the hydroxypropyl crosslinked starch comprises the following steps: mixing starch and water to prepare starch milk; adding sodium phytate and urea; adding sodium sulfate and sodium hydroxide after cooling; adding epoxypropane for reaction; and adding sodium trimetaphosphate to react to prepare the hydroxypropyl crosslinked starch. The hydroxypropyl crosslinked starch prepared by the preparation method disclosed by the invention has excellent shear resistance, acid resistance and oxidation resistance.

The invention discloses an organic fertilizer suitable for tea yield increase and insect killing and a preparation method thereof, and relates to the technical field of organic fertilizer and microbial fertilizer manufacturing. The organic fertilizer is prepared from straw, chicken manure, radix inulae, clinacanthus nutans, affine cudweed, periploca forrestii schltr, ellagic acid-rice protein zymolyte, sodium laurate modified diatomite, sodium humate, urea, compound microorganism bacteria and water. The compound microorganism bacterium is composed of candida utilis saccharomycetes and neurospora intermedia. The compound microorganism bacteria in the organic fertilizer are beneficial to accelerating fermentation decomposition of the straw, the chicken manure, the sodium humate, the urea and the traditional Chinese medicine plants and promoting macromolecular substances to be converted into micromolecular active ingredients, then ellagic acid-rice protein zymolyte and sodium laurate modified diatomite are supplemented, and the yield of tea tree planting is increased through reasonable proportion of nutritional ingredients.

The invention relates to the technical field of disinfection and disinfection, in particular to a method for preparing solid hydrogen peroxide particles. The method comprises the following steps: (1) adding sodium alginate and chitosan into deionized water, uniformly stirring, cooling, adding a hydrogen peroxide aqueous solution, sodium pyrophosphate and sodium phytate, and stirring to form a hydrogen peroxide mixed solution; (2) preparing a solid hydrogen peroxide block from the mixed solution by a freeze-drying method; and (3) crushing the solid hydrogen peroxide block in a nitrogen atmosphere, and sieving to obtain solid hydrogen peroxide particles. By means of a gel network structure formed by sodium alginate and chitosan, hydrogen peroxide molecules are effectively wrapped, the thermal stability is improved, decomposition is delayed, and the synergistic effect of sodium pyrophosphate and sodium phytate further optimizes the internal structure of particles and enhances the mechanical strength. The prepared particles show excellent performance in the storage, transportation and use processes, and have wide industrial application prospects.

The invention relates to the technical field of metallurgy, discloses a composite bentonite core material for metallurgical pellets as well as preparation and application of the composite bentonite core material, and aims to solve the technical bottlenecks that the TFe grade is low and the SiO2 content is high due to a large amount of bentonite in existing pellet production, and titanium-containing and high-sulfur fine iron powder pellets are easy to burst and insufficient in strength. The core material is formed by compounding 60% of corn gelatinized starch, 20% of sodium humate, 10% of lignosulfonate and 10% of macromolecular copolymer, and 2%-3% of borax or 2%-3% of polyacrylamide is added for titanium-containing iron fine powder for optimization; 3%-4% of potassium permanganate is added for optimization aiming at the high-sulfur iron fine powder. According to the composite bentonite, the compressive strength of finished product balls can be improved by 20%-30%, the ball cracking rate is reduced by 90% or above, the TFe grade is improved by 0.3%-1.3%, the multiple purposes of reducing the dosage, improving the grade and adapting to special fine powder are creatively achieved, and the composite bentonite has remarkable technical and economic values.

The invention relates to the technical field of microbial fertilizers, in particular to a low-cost compound microbial fertilizer and a preparation method thereof. The low-cost compound microbial fertilizer comprises the following raw materials in parts by mass: 20-40 parts of a fermented organic fertilizer, 10-20 parts of urea, 5-10 parts of ammonium magnesium phosphate, 5-15 parts of a potassium fertilizer, 1-4 parts of sodium humate, 1-4 parts of trehalose, 1-3 parts of gelatin, 0.1-1 part of a stabilizer, 7-19 parts of a mineralized microbial agent load and 1-3 parts of a coating solution, the mineralized microbial inoculum load comprises the following raw materials: 5-15 parts of bamboo charcoal powder, 1-3 parts of a composite microbial inoculum, 1-2 parts of calcium chloride and 1-2 parts of disodium hydrogen phosphate. The fertilizer has the advantages of obviously increasing the fertilizer utilization rate, improving the physical and chemical properties of soil, promoting the formation of granular structures and repairing hardened and ill-conditioned soil, has obvious soil repairing effect and obvious yield increasing, value increasing and quality improving effects, and is suggested to be suitable for large-scale popularization and application when being popularized and applied in production.

The invention discloses a preparation method of water-soluble naphthyl nut arene and construction of a molecular beaker. The method comprises the following steps: reacting 2, 7-dibromonaphthalene (compound 1) with 2, 5-dimethoxyphenylboronic acid to generate a compound 2; demethylating through boron tribromide to obtain a compound 3; then reacting with dihaloalkane to generate a compound 4; then carrying out cyclization with methylal to obtain H1; then reacting with trimethylamine to obtain H2; then, H2 and sodium phytate are used for constructing a molecular beaker system; according to the method, a series of water-soluble naphthyl nut arenes with different alkane chain lengths and different halide ions are prepared, and an efficient molecular beaker system is constructed. The molecular beaker system has the advantages of being simple and convenient to synthesize, low in cost, adjustable in height, capable of effectively improving the binding capacity with specific guest molecules and the like.

The invention discloses a phosphorus-doped chitin-based hard carbon negative electrode material prepared by a pre-sodium modification method and an application of the phosphorus-doped chitin-based hard carbon negative electrode material. Chitin is used as a carbon source, sodium salt is supplemented, then the sodium salt and the carbon source are mixed in a physical ball milling mode, a precursor is obtained, and finally the hard carbon material is obtained after pre-oxidation and carbonization process treatment. The method does not need other additives, and does not need complex chemical reaction, so that the preparation process is simpler, the cost is lower, the preparation is more controllable, the sodium salt and the carbon source are completely mixed and carbonized, and the loss of the sodium salt raw material is less. When the sodium phytate is selected as the sodium salt, the pre-sodium modification is realized, and the phosphorus element is doped by a one-step method, so that the process is simpler, and the cost is lower; and a large number of closed pores can be introduced by utilizing a pre-oxidation process and phytate anion groups, so that storage and diffusion of Na < + > are more facilitated, excessive graphitization of the material is hindered, and performance limitation of the chitin-derived hard carbon material in an application process is solved in a targeted manner.

The utility model discloses a sodium humate purifying device which comprises a hopper, a water inlet and a water outlet, the reaction assembly is assembled at the bottom of the hopper and is used for producing sodium humate; the precipitation assembly is assembled on one side of the reaction assembly and is used for precipitating the reacted solution; the acid water treatment assembly is assembled on one side of the precipitation assembly and is used for absorbing acid liquor; when the sodium humate purifying device is used, firstly, a sodium humate solution subjected to primary treatment is fed into the neutralizing tank through the connecting pipe, at the moment, the pH value of the solution is monitored in real time through the pH value detector, and if the pH value does not meet the requirement, the adding amount of the neutralizing solution in the input pipe is adjusted through the control valve; the sodium humate purifying and drying barrel is used for purifying sodium humate, the solution reaches a proper pH value, then the solution enters the heat preservation barrel through the conveying pipe, the electromagnetic heater is used for heating and drying the solution, the purified sodium humate is dried in the purifying and drying barrel, and finally the product is taken out through the discharging port.

The application provides a method for promoting mist culture rooting of Pinus squamaeformis, and relates to the technical field of Pinus squamaeformis cutting propagation. The method for promoting mist culture rooting of Pinus squamaeformis comprises the following steps: soaking Pinus squamaeformis cuttings in a citric acid solution in an ice water bath, disinfecting the cuttings, and treating the cuttings with a rooting agent; and then performing mist culture on the cuttings by adding a nutrient agent containing calcium nitrate, potassium nitrate, magnesium sulfate, copper sulfate, indole butyric acid, sodium phytate and lauryl alcohol polyether-4. The method overcomes the shortcomings of the prior art, effectively promotes rapid rooting of Pinus squamaeformis branches, guarantees the growth of root systems, provides a fast and convenient method for stable seedling raising of Pinus squamaeformis, and guarantees artificial breeding of Pinus squamaeformis.

The application belongs to the technical field of target material production, and discloses a preparation method of titanium-aluminum target material, which comprises the following steps: first, titanium powder and aluminum powder are weighed according to a mass ratio of 4-5:5-6; then, the titanium powder, the aluminum powder and an antioxidant are put into a mixer to mix and obtain powder I, the antioxidant is at least one selected from stearic acid, sodium phytate and tea polyphenol, and the adding amount of the antioxidant is 0.1-0.5% of the total mass of the titanium powder and the aluminum powder; then, the powder I is ball milled under the atmosphere of nitrogen or argon to obtain powder II, and the ball milling time is 6-12 hours; finally, the powder II is subjected to hot isostatic pressing sintering, and then cooled and discharged from the furnace to obtain the titanium-aluminum target material; through the preparation method, the titanium-aluminum target material with low oxygen content, high density and excellent mechanical properties is obtained; in addition, the application further discloses a titanium-aluminum target material prepared by the preparation method of the titanium-aluminum target material.

The invention relates to the technical field of cosmetics, and discloses a herbal probiotic composition with whitening and anti-aging effects and a preparation method thereof. The herbal probiotic composition is prepared from alpha-arbutin, licoflavone, bakuchiol, resveratrol, ellagic acid, a metagen complex, skin micro-ecological prebiotics, sodium phytate, ferulic acid, rosemary polyphenol, polycystic liposome and the balance of a carrier suitable for skin. The herbal probiotic composition disclosed by the invention realizes stable co-delivery of hydrophilic and lipophilic activities and effective retention of cuticles under mild pH, synergistically inhibits blackness, resists oxidation and supports microecology, and improves the effective content and batch-to-batch consistency in the shelf life through metal ion accessibility control, so that the whitening and anti-aging effects are improved.

The invention discloses a phytase mutant AppA as well as a coding gene, a preparation method and application thereof. The phytase mutant AppA is obtained by mutating amino acids at the 137th site, the 185th site and the 255th site of wild type phytase AppA from asparagine, aspartic acid and tyrosine into valine, asparagine and aspartic acid respectively; the amino acid sequence and the nucleotide sequence of the gene are SEQ ID NO.1 and SEQ ID NO.2 respectively. The catalytic efficiency of the mutant enzyme AppA provided by the invention on sodium phytate is improved by 2.5 times compared with that of a wild enzyme AppA; under the condition of 70 DEG C, the half-life period of the mutant enzyme AppA is 3.4 times that of the wild enzyme AppA. The mutant enzyme AppA has the characteristic of high enzyme activity under a high-temperature condition, which indicates that the mutant enzyme AppA has an important application prospect in industrial production of a feed in which phytic acid needs to be degraded under the high-temperature condition.

The application relates to the technical field of chemical energy and electric energy conversion, and particularly discloses a zinc-nickel battery electrolyte additive based on dynamic interface modification and a preparation method thereof. The additive is composed of an interface film former composed of sodium phytate and sodium dodecyl sulfonate, a cerium acetylacetone electric field regulator and a double-end amino polyethylene glycol bridging component in a specific mass ratio. Through the multiple synergistic mechanisms of interface film formation, electric field regulation and molecular bridging, the additive can construct an intelligent dynamic interface layer on the surface of a zinc negative electrode, and can synchronously and efficiently inhibit zinc dendrite growth and zinc self-corrosion. The microspherical additive prepared by using a high-speed shearing and spray drying process has good dispersibility and high stability. When the additive is applied to a zinc-nickel battery electrolyte, the cycle life, rate performance and high and low temperature performance of the battery can be remarkably improved, and the additive has important practical value.

The utility model discloses reaction equipment suitable for potassium humate and sodium humate, and relates to the technical field of chemical reaction. The device comprises a bottom plate, a material taking mechanism and a stirring mechanism are arranged on the bottom plate, a hydraulic cylinder is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to an output shaft of the hydraulic cylinder, a stirring barrel is fixedly connected to the top of the bottom plate, and the material taking mechanism comprises a first support rotationally connected to the inner wall of the top plate; a plurality of first grooves are formed in the bottom of the first support, first sliding blocks are slidably connected to the inner walls of the first grooves correspondingly, and charging barrels are arranged in the first sliding blocks correspondingly. According to the reaction equipment disclosed by the utility model, the material taking mechanism is arranged, so that the problems that in the use process of existing reaction equipment suitable for potassium humate and sodium humate, material residues remained after the preparation of the potassium humate and the sodium humate are inconvenient to take out and need to be filtered and separated, so that one more working procedure is generated, and the production cost is increased are solved.

The present invention belongs to the technical field of biomedicine, and particularly relates to an anesthetic preparation containing trimecaine and a preparation method thereof. The anesthetic preparation containing trimecaine comprises the following raw materials in parts by weight: 8-12 parts of trimecaine, 0.5-1 part of lindenenolide, 0.3-0.8 part of sodium phytate, 1-5 parts of schizophyllan oligosaccharide, 3-5 parts of 1,2-propanediol, 2-6 parts of sodium carboxymethylcellulose, 3-8 parts of Tween, and 60-70 parts of physiological saline. The combination of lindenenolide and trimecaine added in the anesthetic preparation of the present invention can improve the anesthetic effect and prolong the anesthetic time. Sodium phytate and schizophyllan oligosaccharide in the anesthetic preparation act synergistically to effectively improve the stability of the anesthetic preparation. Among them, due to the film-forming property of schizophyllan oligosaccharide, it can also improve the anesthetic efficacy of the anesthetic preparation to a certain extent. In addition, the anesthetic prepared by the present invention has no obvious irritation to the skin.

The invention discloses a colon-targeted pharmaceutical composition as well as a preparation method and application thereof, and belongs to the technical field of pharmaceutical preparations. The invention aims to solve the technical problems that the existing 5-aminosalicylic acid preparation is low in targeted delivery efficiency and lacks a synergistic interaction mechanism. According to the pharmaceutical composition, 5-aminosalicylic acid is used as a treatment component, and pH response type composite hydrogel constructed by sodium humate and sodium alginate is used as a carrier. The core characteristic of the pH-responsive controlled-release hydrogel is that sodium humate is a functional carrier component for forming a hydrogel network and realizing pH-responsive controlled release, and meanwhile, sodium humate is also used as an active component and has a synergistic interaction effect with 5-aminosalicylic acid. By means of the intelligent carrier, release of the medicine in the stomach is effectively inhibited, effective enrichment and continuous medicine release at the colon part are achieved, the local medicine concentration is remarkably improved, and an efficient and safe new strategy is provided for treatment of ulcerative colitis.

The invention relates to whitening toothpaste capable of reducing pigment adhesion as well as a preparation method and application of the whitening toothpaste. The whitening toothpaste comprises hydrated silica, a PVM / MA copolymer, sodium phytate, tetrasodium pyrophosphate, hydroxyapatite and polyethylene glycol. The hydrated silica, the PVM / MA copolymer, the sodium phytate, the tetrasodium pyrophosphate, the hydroxyapatite and the polyethylene glycol have a synergistic effect, the effects of whitening, removing stains and removing exogenous stains can be achieved, and the tooth whitening degree is improved from the inside and the outside.

The present invention provides a preparation method for a nano-drug composite dynamic cross-linked hydrogel with curcumin / nitric oxide / photothermal synergistic antibacterial effect. The present invention uses copper salt to chelate curcumin to form first nanoparticles, and then uses polydopamine to coat the first nanoparticles to form nano-drug P Cur Sodium nitroprusside and sodium phytate were used as raw materials and nano-coprecipitation method was used to prepare second nanoparticles; polydopamine was then used to coat the second nanoparticles to prepare a core-shell structure nano drug P NO ; The nano drug P cur and P NO The nanocomposite hydrogel is mixed evenly with carboxymethyl chitosan and oxidized hyaluronic acid to form a nanocomposite dynamically cross-linked hydrogel. In addition to its significant antibacterial properties, the nanocomposite hydrogel of the present invention also has significant advantages such as high antibacterial efficacy, good biosafety, convenient preparation, and low cost. The present invention also combines drug, photothermal, and gas therapy in a single device, facilitating synergistic and precise bacterial elimination.

The application belongs to the technical field of food packaging film preparation, and provides a polysaccharide-based food antibacterial fresh-keeping packaging film with pH and enzyme dual response performance and a preparation method thereof, which comprises the following steps: soaking pre-cooled bacterial cellulose in a CaCl2 solution and a mineralizing solution containing sodium phytate and Na2HPO4 in sequence, oscillating mineralization, mechanically crushing the product after freeze-drying to obtain mineralized bacterial cellulose particles; covalently coupling papain and phytic acid PA to obtain an enzyme-PA conjugate; swelling beta-glucan in hot water, adding an enzyme-PA conjugate and a CAR ethanol mixture, adding 0.5M ZnCl2 dropwise after homogenization to obtain a response layer liquid; adding glycerol and mineralized bacterial cellulose particles to a chitosan acetic acid solution, homogenizing to obtain a film-forming liquid; taking the film-forming liquid to form a film by a flow casting method, pre-drying, spraying the response layer liquid, and finally drying to obtain the fresh-keeping film. The fresh-keeping film realizes physical barrier, pH and enzyme responsive release, and prolongs the shelf life of fresh meat.

The invention belongs to the technical field of food processing, and particularly relates to strong-flavor rapeseed oil and a preparation method thereof. The preparation method comprises the following steps: (1) taking rapeseeds, removing impurities, and soaking the rapeseeds in an aqueous solution of sodium phytate for a period of time; (2) drying the rapeseeds soaked in the step (1), frying the rapeseeds, squeezing, and filtering to obtain crude oil; and (3) adding montmorillonite into the crude oil obtained in the step (2), stirring for a period of time at room temperature, adding tamarind polysaccharide, stirring for a period of time at room temperature, and filtering to obtain the rapeseed oil. The strong-flavor rapeseed oil obtained by the preparation method can improve the content of pyrazines, aldehydes and furans in the strong-flavor rapeseed oil, improves the flavor of the rapeseed oil, improves the quality of the rapeseed oil, and has a wide market prospect.

The present invention discloses a preparation method of a graphite-based electrode for electrolytic hydrogen production, which relates to the technical field of electrolytic hydrogen production. In the present invention, sodium phytate is used as a phosphorus source, β-dimethylsulfoniopropionate is used as a sulfur source, and silk fibroin is used as a carbon source and a nitrogen source. Due to the good biocompatibility of the three, phosphorus, sulfur, and nitrogen are uniformly dispersed in the matrix. At the same time, by adding a transition metal salt, the carbon atoms are induced to be arranged directionally, promoting the graphitization of the silk fibroin matrix. Moreover, the transition metal can act as a catalyst to increase the active sites of the matrix. Then, through microwave plasma treatment, the microwave sensitivity of the polar groups of silk fibroin is utilized, and under the protection of an inert gas, the hydrogen production efficiency of the graphite-based electrode is improved. Through annealing treatment, the crystallinity and stability of graphene are enhanced. Finally, tourmaline is loaded to cooperate with the graphene and transition metal in the matrix to enhance the hydrogen production effect of the electrode.

The invention discloses a synthetic method of lactobionic acid. The synthetic method comprises the following steps: S1, adding tetrabutylammonium bromide and TEMPO / NaBr / NaClO into a lactose aqueous solution with the mass fraction of 10-15%, and carrying out catalytic oxidation to obtain lactobionic acid; s2, adding sodium phytate; s3, cooling the filtrate obtained in S2, dropwise adding oxalic acid until the pH value of the system is 2.0-2.5, standing for layering, washing a lower heavy phase containing TEMPOH + Cl <-> precipitate with pure water, and combining the filtrate; s4, passing through an activated carbon column, and collecting a decoloring solution; s5, concentrating and cooling the decoloring solution, injecting liquid CO2, and maintaining the pressure; then, acetone is added in a gradient mode for three times, and alpha-lactobionic acid crystals are obtained; according to the method, tetrabutylammonium bromide is used for transferring a hydrophobic main catalyst TEMPO < + > from an organic phase to a water phase through an ion pair exchange mechanism, so that the oxidation reaction of C6-site hydroxyl of lactose is accelerated, and the reaction efficiency is improved while the consumption of NaBr is reduced.

The invention discloses an electroplating disqualified cadmium layer stripping solution, a preparation method and a use method, and the electroplating disqualified cadmium layer stripping solution comprises 6-8 parts of sodium phytate, 1-3 parts of sodium nitrilotriacetate, 2-4 parts of borate, 5-10 parts of sodium bromate, 1-2 parts of sodium alkyl naphthalene sulfonate, 1-2 parts of glucoside, 5-8 parts of sodium nitrate, 3-5 parts of ammonia water, 2-4 parts of triol ethylamine, 4-6 parts of 1-hydroxyethylidene-1, 1-diphosphonic acid and 8-12 parts of ammonium persulfate. The total amount of the purified water is 100 parts, and the total amount of the purified water is 100 parts. The pH value of the deplating agent solution is alkaline, the problem of hydrogen evolution of a hydrogen sensitive material is solved, the risk of hydrogen embrittlement is avoided, and hydrogen removal is not needed after steel and iron materials are deplated; cadmium ion heavy metal pollution and sewage treatment difficulty exist, the stripped cadmium ions automatically generate precipitates, recycling is facilitated, and the sewage treatment difficulty is reduced; the metal deplating liquid is convenient to use and simple to operate, only unqualified products need to be put into the deplating liquid in a room-temperature environment, after a certain time, after a plating layer is completely removed, the unqualified products are washed with water, and a metal base material is not damaged.