185 results about "Octanol" patented technology

The invention belongs to the field of hydrometallurgy, and particularly relates to an extraction organic phase for selectively extracting niobium in a niobium-containing sulfuric acid solution and an extraction method, the extraction organic phase comprises a component a, a component b and a hydrophobic solvent; wherein the component a is a compound with a structure # imgabs0 # as shown in a formula 1; the component b comprises at least one of TBP (tributyl phosphate), MIBK (methyl isobutyl ketone), sec-octanol or isooctanol; r1 is alkyl of C1-C2, and R2 is alkyl of C1-C2; r < 2 > is alkyl of C < 7 > to C < 11 >; a is HCO3 <-> or CO3 < 2->; n is the absolute value of the valence of A. Based on the combination of the component a and the component b, the extraction rate of niobium in the sulfuric acid solution and the extraction separation selectivity of niobium and other elements can be further improved based on the combination and synergy of the components.

The application discloses a preparation method of a catalyst for liquid-phase refining of crude octanol, and the preparation method comprises the following steps: (1) mixing pretreated fly ash and pseudo-boehmite, adding deionized water and nitric acid, stirring until a colloid is formed, drying the colloid, mixing the dried colloid with kaolin, and obtaining a carrier through kneading, extrusion molding, drying and calcination; (2) taking a nickel salt, a manganese salt and a zinc salt as active components, taking a calcium salt as an auxiliary component, dissolving the active components and the auxiliary component in deionized water to obtain a salt solution, adding n-hexane into the salt solution and stirring uniformly to prepare an impregnation solution, immersing the carrier in the impregnation solution, and obtaining the catalyst through washing, drying and calcination. The catalyst prepared by the method is mainly used in a liquid-phase refining reaction process of crude octanol, and has high activity stability and selectivity.

The invention belongs to the technical field of pesticide preparations, and particularly relates to kresoxim-methyl drug-loaded microspheres as well as a preparation method and application thereof. The 9% pyraclostrobin drug-loaded microspheres (Pyr (at) COzein) are prepared by modifying a Zein-pesticide emulsifier 500 # complex with n-caprylic alcohol, and the n-caprylic alcohol has a synergistic effect on pyraclostrobin, so that not only can the defect of a sustained and controlled release preparation in the aspect of fast-acting sterilization be made up, but also the use dosage of pyraclostrobin can be reduced, the risk of pesticide residue can be reduced, and the drug-loaded microspheres have a good application prospect. The ecological safety is improved.

The invention relates to the technical field of fish meat source identification, in particular to a method for identifying different sources of fish meat by combining an electronic tongue with HS-SPME-GC / MS. The method comprises the following steps: obtaining a fish meat sample; performing taste detection on the fish meat sample by adopting an electronic tongue to obtain a taste detection result; after the fish meat sample is extracted, volatile odor substance detection is conducted through chromatography and mass spectrometry, volatile odor substances comprise one or more of dimethyl phthalate, nonanal, n-hexyl alcohol, naphthalene, octanol, 1-octylene-3-alcohol and alpha-platylene, and a volatile odor substance detection result is obtained; and identifying the fish meat source in combination with the taste detection result and the volatile odor substance detection result. According to the method, an electronic tongue technology and a headspace solid phase microextraction-gas chromatography-mass spectrometry technology are combined for use, and the taste and the smell are detected at the same time so as to distinguish fish meat from different sources, so that a more reliable quality evaluation system can be established, accurate traceability and grading are supported, and different user requirements are met.

The invention discloses application of bacillus albordowii in cultivation for improving the flavor of fragrant rice, and relates to the field of fragrant rice cultivation and planting. According to the application, it is found for the first time that bacillus albordowii has the effect of improving flavor substances of fragrant rice, and when fragrant rice seedlings grow to the three-leaf and one-core stage, the roots of the seedlings are soaked with bacillus albordowii liquid; after the seedlings are transplanted to a field, the bacillus albopastoris bacterial liquid is sprayed to the soil at the roots of the seedlings, 24 main aroma components in the fragrant rice can be increased by 5.56%-12036.00%, the content of 2-ethyl-1-hexanol with rose fragrance is increased by 120 times or above, the content of 2-butyl-1-octanol with flower fragrance is increased by 235.71%, the content of 6, 10-dimethyl-(E)-5, 6-dimethyl-2, 6, 6-tetramethyl-1, 3-pentanedione with fruit fragrance is increased by 235.71%, and the content of 6, 10-dimethyl-(E)-5, 6-tetramethyl-1, 3-pentanedione with fruit fragrance is increased by 235.71%. The content of 2, 9-undecylene-2-ketone is increased by 132.50%, the content of limonene, the content of hexanal, the content of 2-heptanone, the content of 2-tridecanone and the content of 2-pentadecanone are increased by 50% or above, and the content of 2-acetyl-1-pyrroline (2-AP) is increased by 30% or above; the application method is more convenient to operate, and the overall flavor of the rice is improved more remarkably.

The invention discloses a method for separating and extracting rhenium in smelting waste acid, which comprises the following steps: adding hydrogen peroxide into rhenium-containing waste acid for oxidation, adding Na2S for copper precipitation and molybdenum precipitation, acidifying supernate, extracting by adopting an extraction organic phase formed by mixing TOA, sec-octyl alcohol and kerosene, and carrying out chemical reverse extraction on the extraction phase by using ammonia water, and carrying out condensation crystallization and vacuum filtration on the strip liquor to obtain ammonium rhenate solid powder and the like. According to the method, a separation and extraction method of precipitation-extraction-condensation crystallization is adopted, and high-selectivity extraction of the high-valence rhenium compound is carried out through TOA, so that effective extraction of rhenium can be completed only through primary extraction and reverse extraction, the process period of rhenium extraction is effectively shortened, the total yield of rhenium reaches 99% or above, and the method is suitable for industrial production. And the mass fraction of the produced ammonium rhenate product is greater than 99.9%, and the method has the advantages of low process technology cost and easier realization of industrialization.

A tank field waste gas recovery device belongs to the technical field of chemical tail gas treatment. Comprising a butyraldehyde storage tank, a cooler, a packing absorption tower and an RTO waste gas treatment device, a breather valve is arranged at the top of the butyraldehyde storage tank, a heat insulation structure is further arranged on the upper side of the butyraldehyde storage tank, an outlet of the breather valve is communicated with the bottom of the packing absorption tower, and a cold octanol outlet of the cooler is communicated with the upper portion of the packing absorption tower. And a top outlet of the packing absorption tower is communicated with the RTO waste gas treatment device. A heat insulation structure is additionally arranged on the tank top of the butyraldehyde storage tank to reduce the influence of heat radiation, and butyraldehyde volatilization is reduced. Volatilized butyraldehyde enters from the bottom of the packing absorption tower, cooled octanol enters from the top of the packing absorption tower, gas containing butyraldehyde is sprayed, butyraldehyde components in the tank field waste gas are removed, and the waste gas with butyraldehyde removed enters an RTO waste gas treatment device to be treated. Peculiar smell in a tank area is effectively reduced, and the pressure and temperature of the butyraldehyde storage tank are kept stable.

The invention provides a preparation method of a supported catalyst, the supported catalyst and application. The preparation method comprises the following steps: precipitating a noble metal Ru precursor and a non-noble metal (Fe, Mn, Cr, Mo and W) precursor on a carrier by adopting a coprecipitation method, and reducing a non-noble metal oxide from a high-valence part to a low-valence part by controlling the ratio and the reduction temperature of the noble metal Ru and the non-noble metal to form high-valence and low-valence coexisting non-noble metal nanoparticles, and the noble metal Ru is in a monatomic dispersed state. Therefore, the preparation method of the supported catalyst provided by the invention has the advantages of simple steps, low cost and no need of complex operation, and is convenient for realizing industrial production. Tests show that when the supported catalyst is applied to hydrogenation reaction of unsaturated aldehyde ketone, hydrogenation reaction of acid and ester, reductive amination reaction of aldehyde and ketone and reductive amination reaction of octanol and hexanediol, the activity and selectivity can be remarkably improved.

The invention belongs to the technical field of coal washing flotation reagents, and discloses a synthesis process of an environment-friendly coal washing flotation reagent foaming agent, and the synthesis process comprises the following steps: composite reaction; water phase fusion; according to the method, biodegradable alcohols such as pentanol and sec-octanol are adopted as main raw materials, and poloxamer and glycerol are matched, so that the problem of toxic residue of a traditional hydrocarbon foaming agent is avoided. In the synthesis process, low-boiling-point impurities are removed through molecular sieve filtration and a rotary evaporator, it is ensured that the purity of the raw materials is larger than or equal to 99.5%, the proportion of the final product deionized water reaches 40-50%, the use amount of an organic solvent is greatly reduced, nanoscale wrapping of alcohol molecules by an emulsifier OP-10 is achieved through a gradient water adding method and an ultrasonic-assisted emulsification technology, and the content of the alcohol molecules is reduced. And a microemulsion structure with high interfacial film strength is formed. After lauryl sodium sulfate is added as an auxiliary emulsifier, the strength of an oil-water interfacial film is improved by 30% or above, and the half-life period of foam is prolonged to 1.8 times of that of a traditional process.

The invention relates to the technical field of non-ferrous metal beneficiation, in particular to a flotation reagent composition for recycling micro-fine particle copper sulfide from copper oxide acid leaching residues and a beneficiation method of the flotation reagent composition. The flotation reagent composition for recovering copper sulfide from copper oxide acid leaching residues is characterized by comprising a collecting agent, a hydrophobic agglomeration agent and a foaming agent, and the collecting agent is ethyl thioacetate; the hydrophobic agglomeration agent is prepared from octadecyl triethoxy silane and kerosene; and the foaming agent is selected from terpilenol, methyl isobutyl carbinol or sec-octanol. The ethyl thioacetate serving as a collecting agent is stable in chemical property in an acid environment, weak in gangue mineral collecting capacity and good in selectivity in the copper sulfide mineral flotation process, and therefore the grade and the recovery rate of obtained copper sulfide concentrate are higher.

The invention discloses an efficient carbon ash dissociation method for stone coal vanadium ore acid leaching vanadium tailings, which comprises the following steps: 1) pulping: mixing the stone coal vanadium ore acid leaching vanadium tailings, an additive and water for pulping to obtain mixed slurry; (2) the mixed slurry is subjected to ore grinding treatment, and ore grinding pulp is obtained; according to the method, the stone coal vanadium ore acid leaching vanadium tailings are subjected to ore grinding under the additive system with the specific combination and proportion, and the dissociation performance of the stone coal vanadium ore acid leaching vanadium tailings is synergistically improved; meanwhile, aiming at the characteristic that the coal surface of the stone coal is partially oxidized, a flotation reagent composed of a traditional collecting agent, composite oleic acid and octanol is adopted, the collecting capacity is effectively improved, the reagent is saved, higher carbon and ash flotation separation selectivity can be obtained, and obtained carbon-rich concentrate can be used as blending combustion coal; the obtained high-ash tailings can be used for preparing Portland cement, baking-free bricks and other building materials after being dehydrated, resource utilization of the stone coal vanadium ore acid leaching vanadium tailings is achieved, and the method has good application and popularization value.

The present invention discloses a PVC / ABS / PC modified material and a preparation method thereof, belonging to the field of polymer material technology. The PVC / ABS / PC modified material comprises the following raw materials in parts by weight: 60-80 parts PVC, 30-40 parts ABS, 10-20 parts modified PC, 5-15 parts plasticizer, 2-5 parts stabilizer, 1-2 parts lubricant, and 1-2 parts antioxidant. The plasticizer is prepared by the following method: S1: bis(2-hydroxyethyl) terephthalate reacts with oleic acid chloride to form a double-chain unsaturated compound; S2: the double-chain unsaturated compound reacts with formic acid and H2O2 to form a diepoxide; S3: the diepoxide reacts with n-octanol to form the plasticizer. The PVC / ABS / PC modified material prepared by the present invention has good tensile properties and impact strength.

The invention belongs to the technical field of organic synthesis, and discloses a preparation method of 4-sulfydryl-1-octanol, which comprises the following steps: mixing gamma-octanolactone and concentrated hydrochloric acid, carrying out heating reflux reaction for set time, cooling, and separating out an organic phase; adding thioacetic acid into the organic phase, controlling the temperature at 15-20 DEG C, adding a strong alkali solution into the organic phase, heating to 30-45 DEG C, keeping the temperature for 1-3 hours, and carrying out condensation reaction; after the condensation reaction is finished, adding acid to adjust the pH value to be weak acid, extracting a reaction system, washing and concentrating an organic phase, and redissolving a concentrate by adopting an organic solvent to obtain a mixed solution I; and preparing a lithium aluminum hydride solution, slowly adding the mixed solution I into the lithium aluminum hydride solution under a low-temperature condition, and carrying out a reduction reaction at the temperature lower than 20 DEG C for 1-4 hours after the lithium aluminum hydride solution is completely added. The used raw materials are cheap and easily available, the operation is simple and convenient, and the industrial value is high.

The present application relates to the field of food, disclose a kind of method for removing mushroom smell of edible mushroom, wherein the method comprises: edible mushroom is carried out photocatalytic treatment under ultraviolet light;The mushroom smell is selected from 1-octene-3-alcohol and / or 1-octanol.The photocatalytic treatment of the present application makes the content of vitamin D2 in edible mushroom be improved, while the content of 1-octene-3-alcohol is significantly reduced, compared with the edible mushroom without ultraviolet treatment, the peak volume of 1-octene-3-alcohol can be reduced by 1356 times, effectively removes the mushroom smell of edible mushroom.

The application discloses a 30# hard pitch flue gas low-toxicity risk characteristic fingerprint spectrum evaluation method and application. The application constructs a total ion flow chromatogram characteristic fingerprint spectrum of 30# hard pitch flue gas, the fingerprint spectrum comprises five characteristic peaks of 5-hydroxyvaleraldehyde acetate, alanine, 2,7-dimethyl-1-octanol, acetone and 3-ethyl-2-methylheptane, a to-be-tested pitch flue gas sample is collected, and whether the corresponding chromatographic peaks appear simultaneously is analyzed; if the corresponding chromatographic peaks appear simultaneously and the total peak area is greater than 30%, the pitch flue gas is determined as low risk. The low-toxicity characteristic fingerprint spectrum unique to 30# hard pitch is used as an evaluation benchmark, and scientific basis is provided for identification of low-emission pitch materials and health protection of construction personnel.

This invention belongs to the field of new material preparation and application, specifically relating to a silicon carbide support and its application in hydrogenation catalysts. Using water glass as the silicon source, the pH of the water glass is adjusted to 7.0 with 10% dilute nitric acid. After filtration, washing, and further filtration, a slurry is obtained. Then, methylcellulose is used as the carbon source and mixed with the slurry. After drying, it is calcined at high temperature in a flowing inert atmosphere to form stable carbon-containing silicon carbide powder. Then, methylcellulose is used as a binder for kneading and extrusion molding, followed by high-temperature calcination in air to obtain the desired silicon carbide support. This SiC support has a high specific surface area and, when used in the preparation of hydrogenation catalysts, can effectively reduce the sulfuric acid color of octanol (octenal hydrogenation product) and effectively improve the ultraviolet light transmittance of ethylene glycol (ethylene glycol hydrogenation refining product).

The application discloses an amplification preparation method of dimethylheptyl methylphosphonate, and belongs to the technical field of medical intermediates. The core point of the application is that 2-octanol and phosphorus trichloride are used as raw materials, and tri-2-octyl phosphite is generated in an organic solvent in the presence of a catalyst A, then the tri-2-octyl phosphite is reacted with a methylating agent in the presence of a catalyst B to generate dimethylheptyl methylphosphonate. The method avoids the use of dangerous reagents and expensive reagents, reduces the raw material cost, reduces the generation amount of isomers, improves the reaction yield, greatly reduces the amount of three wastes, and makes the whole preparation process more green and environment-friendly. The process is simple and reliable, easy to industrial production, and provides a new reaction path for the synthesis of dimethylheptyl methylphosphonate.

The invention discloses a water self-healing microcapsule, an electrical tree damage self-repairing coating and a preparation method thereof, and the preparation method comprises the following steps: mixing lauryl sodium sulfate, sodium hydroxide and deionized water, and stirring in a water bath to obtain a water phase solution; the preparation method comprises the following steps: adding polyisocyanate and octadecanol into ethyl phenylacetate, stirring, then adding isophorone diisocyanate, dropwise adding fluorescent dye, and stirring to obtain an oil phase solution; mixing the water-phase solution and the oil-phase solution, adding n-caprylic alcohol, cooling to room temperature, washing with absolute ethyl alcohol and deionized water respectively, removing residual liquid through low-pressure suction filtration, and drying a solid part to obtain the water self-healing microcapsule. The microcapsule disclosed by the invention is a water self-healing type microcapsule, and the microcapsule can be used for self-repairing electrical tree damage in the coating without a catalyst, and has a good self-repairing effect.

The invention discloses a method for removing the fishy smell of chicken gizzards through multi-bacterium combined fermentation, and belongs to the technical field of poultry byproduct processing. According to the method disclosed by the invention, the chicken gizzards are subjected to fishy smell removal treatment by compounding the saccharomycetes Y4-1 and the bacillus SB. After fishy smell removal treatment, the content of key fishy smell substances including 1-octylene-3-alcohol, octanol, hexanal, nonanal and heptanal is greatly reduced, the total content is reduced from 25.15 mu g / g to 6.02 mu g / g and is reduced by 76.06%, heptanol, geranyl acetone, methyl heptanoate, methyl caprylate, glycerol monooleate, trans-2-decenal, 2-undecenal and other substances are completely removed, and the content of the key fishy smell substances is reduced by 76.06%. Meanwhile, elegant aroma components such as benzaldehyde and phenylacetaldehyde are generated. In conclusion, the saccharomycetes Y4-1 and the bacillus SB are compounded to remove fishy smell, so that the fishy smell substances of the chicken gizzards can be effectively removed, the flavor of the chicken gizzards can be further improved, and the edible value of the chicken gizzards is improved.

The invention discloses a tissue slice in-situ hybridization pretreatment liquid and a use method, the tissue slice in-situ hybridization pretreatment liquid is characterized in that the tissue slice in-situ hybridization pretreatment liquid is composed of a compound component A solution and a surfactant component B solution, the compound component A solution and the surfactant component B solution have a proper octanol / water partition coefficient and can effectively remove endogenous fluorescent substances, and a solvent is a hydrophilic solvent; wherein the component A is one or a combination of more of bis (hexamethylene) triamine, dodecyl pyridine chloride, cyclohexylamine, isophorone diamine, N-benzylamino ethanol, N, N, N, N-tetramethyl-1, 6-hexamethylenediamine and 1, 3-bis (aminomethyl) cyclohexane; and the component B is one or a combination of more of triton X-100, tween-20, lauryl sodium sulfate and sodium dodecyl benzene sulfonate. The method is used when the FFPE slice is subjected to fluorescence in-situ hybridization or immunofluorescence experiments, autofluorescence can be reduced in a rapid removal mode, the pretreatment effect is remarkably improved, and the hybridization efficiency of samples difficult to hybridize is improved.

The invention relates to the technical field of gas leak detection agents, and provides a micron bubble leak detection agent and a preparation method and application thereof. The micron bubble leak detection agent is composed of a component A and a component B, wherein the component A comprises the following components in parts by weight: 40-50 parts of deionized water, 2-4 parts of n-caprylic acid, 1-1.5 parts of a foaming agent, 0.1-0.2 part of a corrosion inhibitor, 0.05-0.08 part of sodium polyacrylate and 0.02-0.04 part of a chelating agent; the component B is prepared from the following components in parts by weight: 40 to 50 parts of deionized water, 0.05 to 0.1 part of sodium carboxymethyl cellulose, 0.05 to 0.1 part of xanthan gum, 0.4 to 0.8 part of polyhydric alcohol, 0.2 to 0.4 part of octanol and 0.3 to 0.5 part of an auxiliary agent; the auxiliary agent comprises anionic polyacrylamide and hydrolyzed polyacrylonitrile sodium salt in a mass ratio of 2: (1-2). According to the technical scheme, the problem of insufficient foam stability of the gas leak detection agent in the prior art is solved.

The present invention provides an acetylated surfactant for reducing the minimum miscibility pressure of CO2 miscible flooding, its preparation method and application, belonging to the technical field of CO2 enhanced oil recovery. The preparation method of the acetylated surfactant of the present invention includes the steps of: under the action of catalyst A, reacting an aqueous solution of gluconic acid and n-octanol to obtain n-octyl gluconate; under the action of catalyst B, reacting n-octyl gluconate and acetic anhydride to obtain an acetylated surfactant for reducing the minimum miscibility pressure of CO2 miscible flooding. The preparation method of the surfactant of the present invention is simple, the raw materials are cheap and widely available, green and low in cost; the obtained surfactant can interact with CO2, has high CO2 affinity, and can effectively reduce the minimum miscibility pressure of CO2 miscible flooding.

Provided is an ink jet ink composition containing a pigment, a resin binder, and an organic solvent. The pigment includes a resin-dispersed pigment dispersed with a crosslinked resin. The resin binder includes a self-emulsifying type resin binder. The organic solvent includes an organic solvent having an octanol-water partition coefficient log Pow value of 0 to 1.

The invention discloses a catalyst for preparing 1-octene or octyl ether through dehydration of 1-octanol, the catalyst is a gradient acid site catalyst, and the total proportion of weak acid sites and medium-strong acid sites of the catalyst is greater than or equal to 70%; the catalyst is composed of a carrier, P2O5 and ZnO, wherein the P2O5 and the ZnO are loaded on the carrier, and the carrier is gamma-Al2O3; according to the mass of the gamma-Al2O3, the loading capacity of the ZnO is 2-5%, and the loading capacity of the P is 0.5-1.0%. Meanwhile, the invention discloses a preparation method and application of the catalyst. The total proportion of the catalyst, the weak acid site and the medium-strong acid site is greater than or equal to 70%, the catalyst is a gradient acid site catalyst, the weak acid site can promote intermolecular dehydration to generate octyl ether, and the medium-strong acid site can promote intramolecular dehydration to generate 1-octene, so that the catalyst realizes dual purposes.

The present invention belongs to the technical field of core coating preparation, and particularly relates to a core coating for aluminum alloy castings and a preparation method thereof. The core coating for aluminum alloy castings consists of the following raw materials: pyrophyllite, fayalite, zircon powder, magnesia, calcium titanate, cryolite, phosphorus pentoxide, sodium pyrophosphate, rectorite, octylphenol polyoxyethylene ether, n-octanol, and water. The core coating for aluminum alloy castings of the present invention uses a mixture of pyrophyllite, fayalite, zircon powder, calcium titanate, magnesia, cryolite, and phosphorus pentoxide as refractory materials, water as a carrier liquid, a mixture of sodium pyrophosphate and rectorite as a suspending agent, and simultaneously adds an n-octanol defoamer and an octylphenol polyoxyethylene ether surfactant. The synergistic effect between the raw materials ensures that the prepared core coating has good resistance to metal liquid erosion, anti-adhesion to sand, and thermal stability during application, thereby enabling the core coating to have excellent stripping strength and refractoriness.

The invention discloses an extraction method of active substances of parnassia palustris and application of the active substances to antitumor drugs, and relates to the technical field of oncotherapy, and the extraction method comprises the following steps: putting dried parnassia palustris into a crushing device for crushing; extracting the crushed parnassia palustris, saturated saline solution and 2-octanol in an empty bottle, adding a magnetic stirrer during extraction, sealing in an SPME operation table, and extracting a 1-tetradecanol extracting solution from the parnassia palustris after extraction; the application has the technical advantages that the active substance 1-tetradecanol is extracted from parnassia palustris, and the 1-tetradecanol reduces the energy supply of tumor cells by inhibiting the energy metabolism pathway of the tumor cells, so that the metabolic state of the tumor cells is changed to a certain extent, and the tumor cells can be effectively inhibited. The method has important significance in understanding the influence mechanism of drugs on the growth and survival of tumor cells; and a crushing structure composed of a cyclone separator and a centrifugal crusher is arranged, so that efficient crushing of parnassia palustris is realized, and stripping of wet air in parnassia palustris particles is realized.

This invention discloses a low-temperature resistant composite flotation reagent for coal preparation and its preparation method, specifically relating to the field of flotation technology. The reagent is formed by emulsification of a composite collector, a composite frother, and an aqueous phase. The composite collector contains kerosene, n-dodecane, oleic acid, dimer acid, surfactant components, and low-temperature stabilizing components. The composite frother contains terpineol, pine oil, sec-octanol, and sodium α-olefin sulfonate, etc. Through compounding and synergistic effects, high-speed shear emulsification, and high-pressure homogenization, the obtained reagent exhibits good dispersibility and stability at -5 to 15°C, and can improve the flotation efficiency, clean coal yield, and combustible gas recovery rate of fine coal slime and high-ash, difficult-to-separate coal slime without heating the coal slurry.

The invention relates to the technical field of medicines, in particular to an intelligent response type cervical auxiliary fertility gel which comprises the following components in percentage by mass: 0.1-2% of a gel matrix which is selected from one or more of hydroxypropyl methyl cellulose, hydroxyethyl cellulose, sodium alginate and gellan gum; 0.05%-0.5% of a gel adjusting auxiliary agent which is selected from zinc chloride or calcium lactate; the osmotic pressure regulator is selected from one or more of glycerol, glucose, sodium chloride, mannitol, sorbitol, polyethylene glycol and propylene glycol; 0.1%-2% of an acid-base regulator which is selected from one or more of disodium hydrogen phosphate, sodium dihydrogen phosphate, dipotassium phosphate and potassium dihydrogen phosphate; according to the present invention, the toxicity grade of the gel on cervical cells is less than or equal to grade 2 (ISO 10993-5 standard), the cell survival rate is more than or equal to 70%, and the safety is high.

The present application belongs to the field of gasoline additive, and particularly relates to an environment-friendly gasoline antiknock agent and a preparation method thereof. The antiknock agent comprises two newly designed modified compounds: 3,5-di-tert-butyl phenyl carborane carboxylate and 2-(dicyclohexyl phosphino)-1,2-oxaborinin-4-carboxylic acid iso-octyl ester. In the preparation, a cosolvent is first added into a reactor, and then the two modified compounds, polyisobutylene amine, isobutyl acetate and dimethyl malonate are sequentially added under an inert atmosphere. After mixing by continuous stirring, the temperature is raised, an antioxidant is added, and then stirring is continued. Finally, the product is obtained by cooling and filtering. The two modified compounds are prepared by condensation reaction of carborane carboxylic acid and steric phenol, esterification of oxaborinin carboxylic acid and iso-octanol, and then phosphination reaction. The antiknock agent does not contain metal elements, has biodegradable characteristics, can significantly improve the octane number of gasoline and reduce engine deposits and harmful gas emissions, and meets the green environmental protection requirements.

To provide a water-based ink for inkjet printing excellent in substrate adhesion, wet spreadability and printing density of the ink to a low liquid absorbing printing substrate.SOLUTION: A water-based ink for ink-jet printing on a low-liquid absorbing printing substrate, which comprises a pigment, an organic solvent (A), an organic solvent (B) and water, wherein the organic solvent (A) is a glycol ether having an octanol-water partition coefficient logP of at least 0.75, the organic solvent (B) is a glycol ether or alkylene glycol having an octanol-water partition coefficient logP of less than 0.75, and a distance Ra between Hansen solubility parameters (HSP) of the organic solvent (A) and the organic solvent (B) is not more than 5.5, A mass ratio (A) / (B) of the organic solvent (A) to the organic solvent (B) is not less than 0.4 and not more than 2.5.SELECTED DRAWING: None