73 results about "Sodium Phytate" patented technology

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 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 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 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 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 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 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 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.

The invention provides a method for promoting aeroponic rooting of pinus khasys, and relates to the technical field of cutting propagation of pinus khasys. The method for aeroponically culturing and rooting the pinus khasys comprises the following steps: soaking scions of the pinus khasys in a citric acid solution in an ice-water bath, disinfecting, treating with a rooting agent, and aeroponically culturing by adopting a nutritional agent added with calcium nitrate, potassium nitrate, magnesium sulfate, copper sulfate, indolebutyric acid, sodium phytate and lauryl alcohol polyether-4. According to the method, the defects in the prior art are overcome, rapid rooting of the pinus kesiya branches is effectively promoted, growth of the root system is guaranteed, a rapid and convenient method is provided for stable seedling raising of the pinus kesiya, and artificial breeding of the pinus kesiya is guaranteed.

The invention relates to the technical field of catalysts, and discloses a catalyst for reducing the sulfur content of petroleum coke and a preparation method thereof.Sodium phytate containing multiple phosphate groups is used for replacing part of sodium phosphate salt, sodium tungstate, ammonium molybdate and lanthanum nitrate are subjected to a reaction, and obtained rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid contains more anions; the rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid and the citric acid quaternary ammonium salt containing a plurality of quaternary ammonium salt cations form stronger electrostatic interaction, and meanwhile, the citric acid quaternary ammonium salt contains a plurality of hydroxyl groups and can form hydrogen-bond interaction with the surface of the rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid, so that the surface modification of the citric acid quaternary ammonium salt on the rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid is effectively realized; after modification, the dispersity of the rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid is improved, agglomeration is reduced, more catalytic active sites are achieved, the contact area between the rare earth lanthanum phosphorus molybdenum tungsten heteropoly acid and petroleum coke is increased, and sulfur-containing compounds such as thiophenic sulfur and the like which are difficult to degrade in the petroleum coke are efficiently oxidized and removed through synergistic oxidation catalysis with hydrogen peroxide.

The utility model discloses the separation equipment device who possesses humic acid potassium and humic acid sodium purification function, relates to chemical separation technical field. The utility model discloses including the outer bucket, be provided with filter equipment and stirring mechanism on the outer bucket, the top of outer bucket is provided with the bucket lid, is provided with the feed pipe in allusion to the upper intercommunication of bucket lid, the bottom intercommunication of outer bucket is provided with the discharge pipe, is provided with electric valve on the discharge pipe, filter equipment includes the connecting block fixed connection in the left side of outer bucket, and the bottom fixed connection of bucket lid has the connecting ring, the bottom fixed connection of connecting ring has the inner bucket. The utility model discloses through setting up filter equipment, has solved the separation equipment device who possesses humic acid potassium and humic acid sodium purification function in the prior art in the use process, is inconvenient to filter the humic acid potassium or humic acid sodium of handled good, is difficult to filter separation among them the precipitate of impurity, thereby reduces the problem of humic acid potassium or humic acid sodium purification efficiency.

The invention discloses a chemical mechanical polishing solution for 316L stainless steel. The chemical mechanical polishing solution comprises an abrasive, an oxidant, a surface modifier, a pH regulator, a stabilizer, a corrosion inhibitor and other solvents, the grinding material adopts 5-25 wt% of Al2O3, the oxidizing agent adopts 3-15 wt% of H2O2 and 0.02-0.2 M of KIO4, the surface modifier adopts 0.5-5 wt% of a silane coupling agent (KH-550) and 0.2-3 wt% of PVA (the molecular weight is 20000), the pH regulator adopts 0.05-0.15 M of aluminum nitrate and 1-3 wt% of citric acid, the stabilizer adopts 0.1-0.5 wt% of urea, the corrosion inhibitor adopts 1-2 wt% of sodium phytate and 1-3 wt% of sodium gluconate, and the other solvents adopt absolute ethyl alcohol and deionized water. Compared with the prior art, the method has the advantages that the sodium phytate, the gluconate and other biodegradable corrosion inhibitors and waste liquid CODlt are adopted; and the strain can be directly subjected to biochemical treatment, and is excellent in environmental protection property.

The present application relates to the technical field of microbial immobilization, and discloses a preparation process of a specific carrier immobilized multifunctional microbial flora composition, comprising: mixing multifunctional microbial flora with an inducer to produce extracellular polymers, to obtain pretreated bacterial solution; adding carboxymethyl deacetyl chitin to the pretreated bacterial solution and adjusting the pH value, to form a primary wrapping suspension; immersing a porous carrier in the primary wrapping suspension, spraying a sodium phytate and calcium lactate composite aqueous solution under a pressure difference environment, and constructing a concentration gradient crosslinking network on the surface and pores of the carrier through ion bridging, wherein the present application utilizes component protonation response mechanism and nonlinear crosslinking distribution to actively open diffusion channels under a specific acid-base environment, reduce metabolic product discharge resistance, and maintain long-term metabolic activity and structural stability of the microbial flora.

This invention discloses a tooth powder with whitening, stain removal, and anti-inflammatory effects, and its preparation method. The tooth powder is a compound of a whitening system, an antibacterial and anti-inflammatory system and a microbiome regulation system, a repair and abrasion system, and a taste-correcting and preservative system. Its core utilizes a specifically formulated biofilm complex enzyme, which can efficiently decompose dental plaque biofilm. Combined with sodium phytate and niacinamide, it achieves gentle whitening and stain removal; with epigallocatechin gallate and baicalin, it achieves targeted antibacterial and anti-inflammatory effects; with probiotic components, it regulates the oral microbiome; and with hydroxyapatite and 45S5 bioactive glass, it repairs tooth enamel. This invention employs customized embedding technology and a graded low-temperature preparation process, significantly improving the storage stability of the active ingredients. The tooth powder of this invention is gentle and non-irritating, does not damage tooth enamel, does not disrupt the oral microecological balance, and has multiple oral care effects with long-lasting and non-rebounding results, making it suitable for large-scale industrial production and long-term use by various population groups.

The application belongs to the technical field of florfenicol medicine preparation, and specifically provides florfenicol nanoemulsion and a preparation method thereof. The florfenicol nanoemulsion is composed of an oil phase, an aqueous phase and a composite emulsification stabilizing solution. The composite emulsification stabilizing solution comprises a non-ionic surfactant, a co-surfactant and a polysaccharide stabilizing solution. The polysaccharide stabilizing solution is obtained after in-situ mineralization of a calcium source to generate amorphous calcium carbonate with a degradation product of kappa-carrageenan and sodium phytate as a synergistic mineralization regulator. The florfenicol nanoemulsion prepared by the application has the advantages of good stability, uniform particle size distribution and high bioavailability.

This invention belongs to the field of cosmetics and discloses a shampoo for cleansing the scalp and hair. It comprises the following components by weight percentage: 0.1-2% compound acid, 0.1-1% compound soft water, 10-30% surfactant, 0.1-5% conditioning agent, 0.1-10% moisturizer, 0.1-2% soothing and oil-controlling active ingredients, 0.5-1% preservative, 0.2-2% fragrance, and the balance being water. The compound acid is composed of gluconolactone, capryloyl glycine, and succinic acid, and the compound soft water is composed of sodium phytate, inositol hexaphosphate, tetrasodium glutamate diacetate, and disodium EDTA. This shampoo, through the selection of compound acids and the combination of compound soft water, along with the soaking application method, achieves a perfect balance between the effectiveness of cleansing the scalp and hair and gentleness, providing a comfortable daily shampooing experience similar to hot spring soft water, and improving the scalp environment to reduce hair loss.

The invention relates to whitening and freckle-removing toothpaste and a preparation method thereof. The whitening and freckle-removing toothpaste comprises tetrasodium pyrophosphate, sodium fluoride, sodium phytate, hydrated silica, synthetic fluorophlogopite and carbomer. The tetrasodium pyrophosphate, the sodium fluoride, the sodium phytate, the hydrated silica, the synthetic fluorophlogopite and the carbomer are combined, so that a synergistic effect is achieved, 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 preparation method comprises the following steps: firstly, adding solvent oil into a reaction kettle, adding humic acid raw powder according to the weight ratio of the solvent oil to the humic acid raw powder, and fully stirring to completely dissolve the humic acid raw powder; adding papermaking waste liquid dry powder into the reaction kettle according to the weight ratio of the humic acid raw powder to the papermaking waste liquid dry powder, then adding sulfur trioxide for sulfonation to generate a sulfonic acid group, then adding liquid caustic soda for neutralization to generate a sodium sulfonate group, testing the pH value, adjusting the pH value to 8-10, then adding industrial borax, heating to recover solvent oil, discharging, drying, crushing and packaging. The water-soluble sodium humate contains more sodium sulfonate groups, so that the water solubility of the sodium humate can be remarkably improved, the water solubility is extremely high, the dispersing and combining capacity is outstanding, the binding force with metal ions can be improved, and the chemical stability is higher. The use effect can be improved, the use range is enlarged, and the method is widely applied to petroleum drilling fluid, crops, aquaculture, feed, medical health care industry and the like.

The application discloses a preparation method of a microbial water-retaining soil improvement substrate, mainly including five processes of strain expansion, water-retaining material modification, organic substrate pretreatment, compound mixing and curing, and powder drying. A plurality of functional bacteria are screened from natural humus soil and wetland sludge, and mixed into high-concentration mixed bacterial liquid according to a specific proportion; a biological base is compounded with inorganic mineral water-retaining raw materials, and modified through acidification and spray drying to obtain modified water-retaining powder. Meanwhile, a plurality of organic materials are mixed and fermented to prepare an organic nutrient substrate. In the process, the proportion of the strains can be adjusted to adapt to saline-alkali soil improvement, part of the raw materials can be replaced to meet different water-retaining requirements, and sodium humate can be added to improve fertilizer efficiency and activity. The finished product has high viable bacterial content, can significantly improve soil water-holding capacity and reduce bulk density, and has the functions of water retention, fertilizer supply, soil structure improvement and microbial repair.

This invention relates to the technical field of tobacco leaf preservation, and particularly to a tobacco humectant, its preparation method, and its application. The tobacco humectant is formed by a eutectic reaction of a hydrogen bond donor and a hydrogen bond acceptor. The hydrogen bond acceptor includes at least one selected from betaine, urea, diammonium hydrogen phosphate, ammonium chloride, and ammonium acetate. The hydrogen bond donor includes at least one selected from sodium phytate, tartaric acid, itaconic acid, potassium lactate, and D-glucopyranose. This invention, by forming a eutectic solvent system and constructing a stable hydrogen bond network, enables the prepared tobacco humectant to possess excellent dual functions of hygroscopic absorption and water retention. When sprayed onto reconstituted tobacco leaves, it solves the problems of rapid moisture release and easy drying of reconstituted tobacco leaves, significantly improving their water-holding capacity. Simultaneously, through precise selection of hydrogen bond donors and acceptors, it further reduces the impact on the user's smoking experience.

The invention discloses a spherical carbon-based catalyst derived from waste paper pulp and warm paste residues as well as a preparation method and application of the spherical carbon-based catalyst, relates to the field of carbon-based composite materials and organic wastewater treatment, and aims at recycling solid wastes and efficiently treating the organic wastewater. The preparation method comprises the following steps: firstly, crushing and airing waste paper pulp and warm paste residues, adding a chitosan solution together with a nitrogen source, shearing and uniformly mixing at a high speed, and dropwise adding sodium phytate for crosslinking for 6-8 hours to obtain microspheres; and rinsing the microspheres, airing at room temperature for 2-3 hours, freeze-drying, and carbonizing in the presence of reducing gas at 600-800 DEG C, thereby obtaining the product. The catalyst is rich in pore size, stable in structure, easy to separate and non-toxic, is filled into a filter during application, is subjected to circular reaction after an oxidizing agent is added into organic wastewater, has the pollutant degradation rate of 95% or above, and is simple in process and suitable for large-scale production.

The invention belongs to the technical field of daily chemical products, and particularly relates to toothpaste containing a periplaneta americana extract and a preparation method of the toothpaste. The toothpaste is characterized by being prepared from the following raw materials in percentage by weight: 1% of sorbitol, 30% of hydrated silica, 30% of water, 10% of polyethylene glycol-8, 8% of sodium lauryl sulfate, 3% of edible essence (material), 5% of cellulose gum, 5% of xanthan gum, 5% of sodium phytate, 1% of saccharin sodium, 5% of tetrasodium pyrophosphate, 1% of periplaneta americana extract and 1% of sodium benzoate. The periplaneta americana extract, sodium phytate and tetrasodium pyrophosphate have a synergistic effect, dental plaque is inhibited, oral wound healing is accelerated, the stability of the paste is optimized through polyethylene glycol-8 and cellulose gum, and irritation of sodium lauryl sulfate to sensitive oral mucosa is reduced.