159 results about "Nonanoic acid" patented technology

The invention belongs to the field of hydraulic oil, and particularly discloses a flame-retardant hydraulic oil composition and a preparation method thereof. The hydraulic oil composition is prepared from the following components in parts by weight: 67 to 97 parts of main base oil, 5 to 30 parts of auxiliary base oil, 1.2 to 1.5 parts of a lubricating agent, 1.5 to 2.0 parts of an antioxidant, 0.03 to 0.06 part of a corrosion inhibitor, 0.01 to 0.08 part of a demulsifying agent and 0.01 to 0.08 part of a de-foaming agent, the auxiliary base oil is one of trimethylolpropane trinonanoate, trimethylolpropane caprylic capric acid ester and trimethylolpropane caprylic laurate; the components are sequentially mixed to obtain the flame-retardant hydraulic oil. According to the invention, a specific main-auxiliary base oil system is compounded with other additives, so that the final oil product has excellent anti-oxidation characteristic, the use temperature upper limit is improved, the service life of the oil product is further prolonged, and the stability and low-temperature pumping capacity of the oil product in the use process are improved.

The invention firstly provides application of nonanoic acid in artemia culture. In the application, the nonanoic acid takes silicon dioxide or chitosan as a carrier and is directly added into a culture water body. Wherein when the nonanoic acid takes silicon dioxide as a carrier, the use concentration of the nonanoic acid in a water body is 150-300 micrometers; when chitosan is used as a carrier of the nonanoic acid, the use concentration of the nonanoic acid in the water body is 55-90 micrometers. The inventor accidentally finds that after the nonanoic acid is mixed with the silicon dioxide or the chitosan and then added into the culture water body, the sudden drop of the pH value of the water body cannot be caused, so that an acid-base regulator does not need to be added, and the incubation and growth of artemia cannot be influenced; meanwhile, uniform dispersion and local high concentration of the nonanoic acid in the water body are realized by using the carrier, so that the use amount of the acid is reduced, and the antibacterial effect is remarkably improved. The invention further provides an artemia breeding method adopting the nonanoic acid as the antibody replacement product. According to the artemia obtained through the breeding method, the hatching rate and the survival rate of the artemia are remarkably increased, the number of vibrios carried by the artemia is effectively reduced, expression of related genes such as growth and immunity of the artemia is up-regulated, development and growth of the artemia are promoted, ecological safety is improved, and unexpected technical effects are achieved.

The invention discloses a high-reliability long-acting anti-termite cable, and belongs to the technical field of cables, the high-reliability long-acting anti-termite cable sequentially comprises a conductor, an insulating layer, a conductor shielding layer, an aluminum sheath layer and a PE outer sheath from inside to outside, and the PE outer sheath comprises the following components in parts by weight: 100 parts of polyethylene and 20-50 parts of thermoplastic elastomer. The preparation method comprises the following steps: adding the surface-modified silicon dioxide microcapsule into a PE outer sheath material, using silicon dioxide as a capsule wall material of the self-repairing microcapsule, and using a repairing agent and an anti-termite agent as capsule core materials; and the surface of the silicon dioxide is modified with a methoxypolyethylene glycol chain segment with a dispersion effect and a vanillyl nonanoate amide chain segment with an anti-ant effect, so that the high-reliability long-acting anti-ant effect is achieved.

The invention discloses a catalyst and application of the catalyst in preparation of methyl isononanoate through carbonylation esterification of diisobutylene, the catalyst is composed of a palladium compound, one or more phosphorus-containing ligands and an acid assistant, and the application of the catalyst is characterized in that diisobutylene is converted into methyl isononanoate through a carbonylation esterification reaction catalyzed by the catalyst, the method comprises the following steps of: adding a catalyst, diisobutylene and methanol into a stainless steel high-pressure kettle in a homogeneous catalytic reaction system, sealing, filling CO gas, replacing the CO gas for three times, filling the CO gas to 3-6 MPa, stirring, heating, and carrying out timing reaction at a specified reaction temperature (90-150 DEG C) and a constant CO pressure. The catalyst has good activity, selectivity and stability in the reaction of converting diisobutylene into methyl isononanoate through carbonylation esterification, and the method for preparing methyl isononanoate by taking diisobutylene as a raw material through the carbonylation esterification reaction is simple in synthetic route, mild in reaction condition, high in yield of the product methyl isononanoate and suitable for industrial production.

The invention belongs to the technical field of cosmetics, and discloses micro-emulsion essence water containing ceramide and a preparation method of the micro-emulsion essence water. The micro-emulsion essence containing ceramide is prepared from the following components: an emulsifier, a humectant, polypeptide, small molecular grease and water, the emulsifying agent comprises polyglycerol-10 oleate, the emulsifying agent does not contain a PEG and / or PPG structure, the humectant comprises glycerol and ceramide, and the small molecule grease comprises at least one of tridecane, undecane, isononyl isononanoate, propyl heptyl octoate, coconut oil alcohol-octoate / caprate, dicapryl carbonate and dioctyl ether. The micro-emulsion essence water containing ceramide has excellent stability, low viscosity, refreshing texture which is common to water and fine skin feeling, and also has excellent moisturizing and tightening effects.

The invention relates to liquid foundation and a preparation method thereof, and belongs to the technical field of cosmetics. The liquid foundation is prepared from the following components in parts by weight: 9.85 to 36.7 parts of colorant composition, 12 to 65 parts of skin conditioner, 2 to 20 parts of emollient, 0.5 to 4 parts of emulsifier, 2 to 45 parts of humectant, 0.5 to 2 parts of filler, 0.2 to 1 part of preservative, 0.05 to 0.5 part of aromatic, 0.02 to 8 parts of plant extract and 8 to 34 parts of water, the skin conditioning agent is prepared from isododecane, trimethylsiloxy silicate ester, isononyl isononanoate, polyglycerol-3 ricinoleate and polyglycerol-10 dioleate. The invention further discloses a preparation method of the skin conditioning agent. The liquid foundation disclosed by the invention has the effects of good flowability, moistening, oxidation resistance and long makeup duration.

The invention discloses an elastic powder block type cosmetic product and a preparation method thereof. The elastic powder block cosmetic product comprises a powder component, an oil phase component, a preservative and an antioxidant, the oil phase component comprises an organic silicon elastomer, an ester composition and silicone oil; wherein the organic silicon elastomer is prepared from a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer; the ester composition comprises isononyl isononanoate and diisostearyl malate, and the mass ratio of isononyl isononanoate to diisostearyl malate is (2: 1)-(3: 1); the silicone oil comprises polydimethylsiloxane; the mass ratio of the organic silicon elastomer to the ester composition is (1: 11)-(1: 13.5). The elastic powder block type cosmetic product is moderate in viscosity, light and thin in texture and good in ductility, stability and makeup maintaining performance.

The invention provides a method for regulating and controlling aroma of grape fruits through an exogenous plant growth regulator, which comprises the following steps of: spraying three exogenous plant hormones, namely methyl jasmonate, phenylalanine and strigolactones, on 'Hanxiangmi' grape fruits with strong rose aroma, and analyzing the aroma composition and content of the treated grape fruits. The result shows that the rose fragrance intensity of the'Hanxiangmi 'grapes is enhanced after the jasmonic acid methyl ester treatment; after strigolactones treatment, components such as alpha-terpilenol, beta-ionone, nonanoic acid, geraniol and the like in grape fruits are prominent, so that the treated grapes are converted into mixed fragrance type grapes with flower fragrance, fruit fragrance and grass fragrance, and the fragrance layers are rich; and the treatment effect of phenylalanine is not obvious. The invention provides a reference for the research of strigolactone in fruit quality.

The invention belongs to the technical field of cosmetics, and particularly discloses a freeze-dried powder base solution and a preparation method thereof. The freeze-dried powder base solution comprises a component A and a component B. The component A is prepared from magnesium potassium fluosilicate, a filling agent, lauroyl lysine, titanium dioxide, CI 77492, CI 77491, CI 77499 and the balance water, butanediol, xanthan gum, a thickening agent, trehalose, polysorbate-60, an emulsifying agent a, phenyl polytrimethylsiloxane, isononyl isononanoate and a preservative. The component B is prepared from the following components: the balance of water, butanediol, a preservative, magnesium sulfate, an emollient, disteardimonium hectorite, phenyl polytrimethylsiloxane, isododecane, trimethylsiloxy silicate ester, an emulsifier b and PEG-10 (Polyethylene Glycol) polydimethylsiloxane. Various raw materials are mixed, so that the obtained liquid foundation has relatively good dispersity, has smooth and refreshing skin feeling, and is prevented from being thick, sticky and greasy.

The invention relates to an elution phase, an oil gel bead preparation and a preparation method of the oil gel bead preparation, the surface of the oil gel bead preparation does not wrap a wall material, and the oil gel bead preparation is prepared from 50-80 parts by weight of isononyl isononanoate, 10-20 parts by weight of trimethylsiloxyphenyl polydimethylsiloxane, 0-20 parts by weight of stearyl alcohol and / or 0-15 parts by weight of behenyl alcohol, 1-10 parts by weight of dextrin palmitate and 0-10 parts by weight of rosa palmifolia fruit oil according to 100 parts by weight. The obtained oil gel bead preparation is good in forming effect and more uniform in surface and size distribution, so that the oil gel bead preparation is more attractive, the oil gel bead preparation is melted once being smeared, and the phenomenon of mud rubbing is avoided. Besides, the oil gel bead preparation can be used for embedding fat-soluble active matters, the components are simpler, and the particle size of the oil gel bead preparation can be controlled, so that the oil gel bead preparations with different particle sizes can be obtained and can be applied to different types of cosmetics.

The invention relates to the field of cosmetics, and particularly discloses a novel magical color magnetic plane water-gloss cream and a preparation method thereof.The novel magical color magnetic plane water-gloss cream is prepared from, by weight, 20%-60% of hydrogenated polyisobutene, 10%-55% of isononyl isononanoate, 1%-15% of styrene / isoprene copolymer, 0.1%-8% of dextrin palmitate, 0.2%-16% of film-forming agent, 0.01%-0.5% of antioxidant, 0.1%-1% of preservative and 0.01%-10% of magnetic pearling agent. And 0.35-13% of a humectant. A wax-free formula is adopted, a transparent raw material is used as a basis, a magnetic pearling agent with magnetic attraction force is matched, filling can be carried out through a mold with a magnet, magnetic pearling agent particles are induced to be directionally arranged, formed patterns can be not limited according to mold modeling, a common filling machine is adopted as filling equipment, and products with uniform formula, color and pattern lines can be obtained. And the formula paste is transparent and stable, and has good skin feeling and makeup effect.

This invention discloses a method for preparing high-quality bio-based 1,9-nonanediol, comprising the following steps: transesterification, precipitation, fatty acid methyl ester refining, ozone oxidation pyrolysis, solvent recovery, esterification, dimethyl azelaate refining, and hydrogenation to obtain high-quality bio-based 1,9-nonanediol. This invention achieves gradient and full-component utilization of vegetable oil raw materials: the oil-based portion of triglycerides is used to produce high-quality bio-based 1,9-nonanediol, while simultaneously producing byproducts such as methyl palmitate, methyl stearate, propionic acid, hexanoic acid, and nonanoic acid; the glycerol-based portion of triglycerides is used as a byproduct of glycerol production. This invention utilizes esterification to reconstruct the products of ozone oxidation pyrolysis, converting the high-boiling-point monomethyl azelaate into the low-boiling-point dimethyl azelaate, achieving efficient separation from saturated fatty acid methyl esters. The dimethyl azelaate, as a raw material, is then hydrogenated to obtain high-quality nonanediol, significantly reducing production costs.

The invention provides a synthesis method of nonanoic acid-2, 2-dinitropropyl ester, which comprises the following steps: mixing an organic solvent, 2, 2-dinitropropanol, nonanoic acid and a solid acid catalyst, and heating to react; the preparation method of the solid acid catalyst comprises the following steps: mixing and dipping a zirconyl nitrate aqueous solution and microsphere silica gel, separating a solid, carrying out heat treatment on the solid at 80-150 DEG C, soaking the solid subjected to heat treatment in sulfuric acid, and roasting the soaked solid at 400-600 DEG C to obtain the solid acid catalyst. According to the synthesis method of the nonanoic acid-2, 2-dinitropropyl ester, the use of liquid strong acid is avoided, the operation is simple, the corrosion to reaction equipment is reduced, and the solid acid catalyst can be repeatedly utilized.

The invention relates to compositions comprising glyceryl nonanoate and a lipase inhibitor and their use.

A highly efficient method for extracting tea saponin from camellia oleifera seed meal is characterized by comprising the following steps: (1) mixing fatty acid A, fatty acid B, sodium hydroxide, and water to prepare an extractant, wherein fatty acid A is at least one of hexanoic acid, heptanoic acid, octanoic acid, or nonanoic acid, and fatty acid B is decanoic acid; (2) mixing the camellia oleifera seed meal with the extractant prepared in step (1) to extract tea saponin; and (3) after the extraction is completed, adding hydrochloric acid, centrifuging and separating the layers, and collecting the extract at the lower layer. The technical solution provided by the present invention has the following advantages: a high tea saponin extraction rate; the extractant does not contain volatile organic solvents and is easily recyclable and environmentally friendly; the extractant has good reusability and low extraction cost.

The invention discloses breeding of a pichia kluyverovii strain with high yield of beta-lyase and application of the pichia kluyverovii strain in beer fermentation, and belongs to the technical field of bioengineering. The pichia kluyveri B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number of the pichia kluyveri B21 is CGMCC (China General Microbiological Culture Collection Center) No.34028. The strain can produce high-yield beta-lyase, and the beta-lyase is catalyzed to produce volatile mercaptan and endows beer with fruity flavor. The contents of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl caprate, phenethyl acetate, linalool and nerol generated by the pichia kluyveri B21 in a hops simulated culture medium are relatively high, and the volatile substances can increase the fruit fragrance and flower fragrance of beer and enrich the flavor of the beer. The pichia kluyveri B21 is expected to be added into production of other food and beverages so as to enrich flavor substance components.

The application discloses a kind of polymer oil displacement agent for carbonate fractured-vug type reservoir and preparation method thereof, step 1, with acetone and ethanol mixed solution as solvent, N, N-dimethylpropylene diamine, diethyl ether and perfluorinated nonanoic acid are added into acetone-ethanol mixed solution, after complete reaction, chloropropene is added, continue to react, after reaction is finished, solvent is removed by evaporation, to obtain fluorocarbon cation hydrophobic monomer CF-1;Step 2, white oil, emulsifier Span80 and Tween80 with mass ratio of 35-45:1-3:1-2 are mixed uniformly to obtain oil phase;AM, sodium p-styrenesulfonate and fluorocarbon cation hydrophobic monomer CF-1 are dissolved in deionized water, sodium bisulfite is added, and stirred uniformly to obtain aqueous solution;The aqueous solution is added to the oil phase to obtain a uniform emulsion, ammonium persulfate is added, and the polymer oil displacement agent is obtained by reaction. It has higher temperature resistance and salt resistance, and greatly reduces the adsorption of carbonate reservoir on the oil displacement agent.

The invention belongs to the technical field of fine chemical engineering, and relates to a method for preparing high-purity n-heptanoic acid and n-nonanoic acid based on temperature control phase transfer catalysis and green oxidation. The method comprises the following steps: adding dehydrated 1-hexene or 1-octene, a PETPP / Rh catalyst, toluene / water and PEG-400, introducing a CO / H2 mixed gas to 4.5-5.0 MPa, carrying out a reaction, carrying out phase splitting, and carrying out molecular distillation on an organic phase to obtain an n-heptanal crude product or an n-nonanal crude product; and carrying out electrolysis in an electrolyte containing MnSO4, AgNO3 and H2SO4, and purifying the reaction solution to obtain n-heptanoic acid or n-nonanoic acid. No heavy metal pollution is generated in the reaction process, the concentration of manganese ions in the wastewater is lower than 0.05 ppm, and the COD value is 30 mg / L or below. The activity of the catalyst is kept above 90% after the catalyst is cyclically used for more than 20 times, the electrolyte can be repeatedly used for more than 50 times, and the recycling rate of the by-product hydrogen exceeds 85%.

The invention relates to compositions comprising glycerol and glyceryl esters of nonanoic acid, their preparation and use.

The invention relates to a method for preparing an electrical equipment insulating liquid from waste edible oil methyl ester with an improved pour ignition point characteristic, and belongs to the technical field of insulating liquids. Distilling the waste edible oil methyl ester to obtain distilled waste edible oil methyl ester; the method comprises the following steps: adding a molecular sieve, immobilized lipase IM-100, neopentyl glycol, distilled waste edible oil methyl ester and methyl nonanoate into a reaction vessel, reacting for 72-96 hours under the conditions that the temperature is 40-50 DEG C and the stirring rotating speed is 120-130 rpm, and separating out the molecular sieve and the immobilized lipase IM-100 to obtain waste edible oil-nonanoate neopentyl glycol diester; and carrying out adsorption, vacuum drying and filter membrane filtration on the obtained waste edible oil-nonanoic acid-based neopentyl glycol diester to generate the waste edible oil-nonanoic acid-based neopentyl glycol diester insulating liquid. The obtained waste edible oil-nonanoic acid neopentyl glycol diester insulating liquid has an excellent low-temperature flow characteristic, and the ignition point also reaches the fireproof safety standard of K-grade insulating oil, so that the risk of accidents of power equipment such as a transformer and the like under severe environment conditions is reduced to a great extent; the vacancy of the insulating liquid in high-safety application places such as offshore wind power and the like is supplemented, and more choices are provided for the application of the insulating liquid.

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

The invention provides a method for preparing acid through aldehyde oxidation by using a CoMoOx-APO-34 catalyst. The method comprises the following steps: mixing a phosphorus source, an aluminum source, a cobalt source, a molybdenum source and a first solution to obtain a Co-Mo-P-Al precursor; mixing the Co-Mo-P-Al precursor, a structure-directing agent, a seed crystal and a second solution, and obtaining a CoMoOx-APO-34 molecular sieve; the method comprises the following steps: mixing a CoMoOx-APO-34 molecular sieve with a target solution, carrying out selective oxidation, and carrying out filtration treatment after selective oxidation to obtain a target product. The method can efficiently catalyze synthesis of isononanoic acid, inhibit Bayer-Villeger side reaction, promote catalytic conversion of peroxide, reduce the concentration of peroxide to 0.1% or less, and improve the yield of isononanoic acid. Meanwhile, the conversion rate of isononanoic aldehyde and the selectivity of isononanoic acid are effectively improved.

The invention discloses a method for directionally preparing high-purity azelaic acid from oleic acid based on a micro-channel reactor, which comprises the following steps: mixing oleic acid and hydrogen peroxide dissolved with a catalyst, and feeding the mixture into the micro-channel reactor for oxidative cracking reaction to obtain oxidation liquid mainly containing the azelaic acid and the oleic acid; standing and layering the oxidation liquid to obtain a water phase A and an oil phase A; hot water is introduced into the oil phase A containing the nonanoic acid and the azelaic acid for extraction and liquid separation, and a water phase B and an oil phase B are obtained; fractionating the oil phase B to obtain high-purity nonanoic acid; cooling and crystallizing the water phase B to obtain a crude azelaic acid product, and melting and evaporating the crude product to remove moisture to obtain high-purity azelaic acid. Based on the microchannel reactor, hydrogen peroxide is used as an oxidizing agent, oleic acid double bonds can be directionally oxidized through a catalyst system, oleic acid is directly oxidized and cracked into nonanoic acid and azelaic acid in a short time, the reaction efficiency can be greatly improved, the reaction time can be shortened, and the use of a solvent and a phase transfer catalyst is avoided; the method has the advantages of high selectivity, high safety and remarkable environmental protection.

The invention discloses a method for synthesizing dihydrocapsaicin, and the method comprises the following steps: synthesizing a first intermediate 1-isobutylcyclohexene, a second intermediate 8-methyl-6-oxonanoic acid, a third intermediate 8-methylnonanoic acid and a target product dihydrocapsaicin. The method uses cyclohexanone, isobutylmagnesium bromide and vanillin ammonium hydrochloride as raw materials, and obtains the product dihydrocapsaicin by stepwise reaction. Each reaction step adopts a conventional chemical reaction, and the reaction conditions are mild. The feasibility of the synthesis process is high, the safety and environmental protection are strong, and the product has a high yield and good purity, and is suitable for industrial production.

The invention discloses a preparation method and application of a nonanoic acid microcapsule suspending agent, and relates to the technical field of herbicides. The nonanoic acid microcapsule suspending agent consists of nonanoic acid, white carbon black, an emulsifying agent, a dispersing agent, a thickening agent, an anti-freezing agent, a preservative, a de-foaming agent and de-ionized water. Wherein the nonanoic acid is adsorbed in pores in the white carbon black, and the emulsifier and the dispersing agent are coated on the surface of the white carbon black, so that the coating rate and the stability are relatively high. The formula parameters of the nonanoic acid microcapsule suspending agent comprise 10-30% of nonanoic acid, 4-15% of white carbon black, 1-5% of an emulsifier, 2-4% of a dispersing agent, 0.1-1% of a thickening agent, 3-4% of an anti-freezing agent, 0.1-0.3% of a preservative, 0.1-0.2% of a defoaming agent and the balance of deionized water. The prepared nonanoic acid microcapsule suspending agent is good in application in weed control, stable in component, environment-friendly and safe.

A solid cosmetic comprising (a) diphenylsiloxyphenyl trimethicone, (b) hydrogenated polyisobutene dissolved in the component (a), (c) at least one selected from the group consisting of isotridecyl isononanoate, isononyl isononanoate, triisooctanoin, ethylhexyl palmitate, caprylic / capric triglyceride, neopentyl glycol dicaprate, diisostearyl malate, mineral oil, polyglyceryl polyisostearate and sorbitan sesquiisostearate, and (d) wax, and having excellent glossiness, adhesion, feeling during use and storage stability.

Detergent compositions can include a surfactant; cloudiness causing perfume ingredient; and octanoic acid, nonanoic acid, decanoic acid, or a combination thereof. Also included are methods of solubilizing cloudiness causing perfume ingredients.

The application discloses a high-yield beta-lyase Pichia kluyveri strain breeding and application in beer fermentation, belonging to the field of bioengineering technology. Pichia kluyveri The Pichia kluyveri (Pichia kluyveri) B21 is preserved in the China General Microbiological Culture Collection Center, and the preservation number is CGMCC No. 34028. The strain can produce high-yield beta-lyase, the enzyme catalyzes the production of volatile mercaptans, and can impart beer fruity aroma. The Pichia kluyveri B21 produces high content of ethyl acetate, isoamyl acetate, isobutyl acetate, ethyl nonanoate, ethyl decanoate, phenethyl acetate, linalool and nerol in hop simulation culture medium, and these volatile substances can increase beer fruity aroma, floral aroma and rich beer flavor. The Pichia kluyveri B21 is expected to be added to the production of other food and beverage to enrich flavor substance components.

The invention discloses a compound essential oil for relieving primary dysmenorrhea and a preparation method thereof. The compound essential oil for relieving primary dysmenorrhea includes limonene, gingerol, α-terpinene acetate, β-sesquiphellandrene, eucalyptol, p-cymene, β-phellandrene, γ-terpinene, α-pinene, β-bisabolene, α-curcumene, trans-caryophyllene, camphene, β-pinene, myrcene, linalool, cis-11-eicosenoic acid, 3-thujacene, α-farnesene, sabinene, 3-carene, nonanoic acid, α-copaene, β-elemene. The present invention has a significant effect of relieving primary dysmenorrhea, and has good safety. In addition, essential oil preparations are easier to penetrate into the skin than cream preparations, and are more likely to activate cells after being absorbed by the skin.

This invention provides a palladium extractant and its preparation method. The extractant is prepared from the following raw materials in weight percentages: diisoamyl sulfide: 20-50%, isooctanol: 5-15%, and methyl nonanoate: 50-70%. This palladium extractant has a large capacity, low toxicity, high extraction efficiency, virtually no flocculent formation during back-extraction, stable performance, and long lifespan. The palladium extractant can achieve an extraction efficiency of 99.98%, and the back-extraction rate can reach over 98%.