614 results about "Aromatization" patented technology

The invention relates to a manufacturing method of high-density aviation fuel, in particular to an aviation fuel mixture based on monoterpenoids and a preparation method of the aviation fuel mixture. Comprising monoterpenoids, polyhydric alcohols and a catalyst which serve as raw materials, and the mass ratio of the raw materials to the polyhydric alcohols is 1: 1. The conversion rate is high, the treatment steps are reduced, the thermal stability and combustion gravimetric heat of the product are improved, and the method is suitable for preparing aviation fuel with high density, low viscosity and low-temperature performance; cyclization and hydrogenation are carried out through a one-pot method, a reaction container does not need to be transferred, and the operation is simple; according to the polyol solvent system, cyclization of the monoterpenoids becomes easier due to participation of polyol, and the conversion rate is increased; according to the dual-catalyst system, a combination of an acidic catalyst and a heterogeneous hydrogenation catalyst is used in a reaction container, so that efficient dehydration and hydrogenation reactions are ensured; the aromatic compound content in the fuel can be controlled by adjusting hydrogenation conditions.

A light hydrocarbon aromatization catalyst capable of increasing the yield of light alkane comprises a hydrogen type Silicalite-1 (at) ZSM-5 core-shell molecular sieve, an active metal and / or a binder, the hydrogen type Silicalite-1 (at) ZSM-5 core-shell molecular sieve takes a Silicalite-1 molecular sieve as a core layer and a ZSM-5 molecular sieve as a shell layer, and the particle size of the hydrogen type Silicalite-1 (at) ZSM-5 core-shell molecular sieve is 90-140 nm. The catalyst is applied to light hydrocarbon aromatization reaction, has higher low-carbon alkane yield and lower dry gas yield, and is good in stability, long in one-way reaction period and low in carbon deposit amount.

The invention discloses a method for preparing fuel from waste polyolefin through noble-metal-free low-temperature aromatization, which comprises the following steps: in the atmosphere of synthesis gas, carrying out catalytic cracking on polyolefin serving as a raw material by adopting a binary mixed catalytic system to obtain aromatic hydrocarbon; the binary mixed catalytic system comprises Zr-ZnO and a molecular sieve; the catalytic cracking temperature is less than or equal to 300 DEG C. According to the low-temperature aromatization method disclosed by the invention, methanol is generated in situ through the synthesis gas, and the methanol and olefin generated by polyolefin cracking are subjected to Prins reaction, so that the aromatization reaction can be realized at the pyrolysis temperature far lower than that in the prior art, precious metals are not needed, the additional value and the application range of a plastic recovery product are greatly enhanced, and the method is suitable for industrial production. And the cost of the recovery process is reduced.

The invention discloses a method for preparing aviation kerosene (aromatic hydrocarbon components) from biogas. The method comprises the following steps: separating biogas to obtain methane and carbon dioxide, and then carrying out a two-step chemical reaction process. The method comprises the following steps: firstly, carrying out dehydrogenation aromatization on methane to obtain aromatic hydrocarbon mainly containing benzene and hydrogen, and separating methane for circulating dehydrogenation aromatization reaction; then hydrogen and aromatic hydrocarbon are merged into carbon dioxide, and the polysubstituted aromatic hydrocarbon is obtained by coupling methanol synthesis and alkylation reaction of benzene without external source hydrogen. The method provided by the invention avoids the problem of low selectivity of aviation kerosene fraction hydrocarbons in a route of Fischer-Tropsch synthesis after methane and carbon dioxide are converted into synthesis gas. According to the conversion method for highly coupling the reaction processes, a new route for producing sustainable aviation kerosene from biogas is developed.

The invention provides a Pt-Sn bimetallic catalyst and a preparation method and application thereof.The preparation method comprises the steps that 1, a Y molecular sieve is placed in a mixed solution of KOH and methyl alcohol, centrifugation and washing are conducted till the Y molecular sieve is neutral after stirring, drying and roasting are conducted, and a non-acid KY molecular sieve is obtained; the silica-alumina ratio of the Y molecular sieve is 3-100; 2) taking the non-acidic KY molecular sieve as a carrier, and loading Sn by adopting an atomic layer deposition technology to obtain a Sn-modified non-acidic KY molecular sieve; and 3) loading Pt by using the Sn-modified non-acidic KY molecular sieve as a carrier and adopting an atomic layer deposition technology to obtain the Pt-Sn bimetallic catalyst. According to the preparation method provided by the invention, spatial distribution of Pt and Sn is accurately regulated and controlled by combining an atomic layer deposition technology, so that the electronic state of Pt species is adjusted, alkane is promoted to be dehydrogenated into an olefin intermediate, and the aromatization catalytic activity and the aromatic hydrocarbon selectivity of alkane are improved.

The invention provides a preparation method and application of a catalyst for methane normal hexane co-aromatization, a simple in-situ hydrothermal synthesis method is adopted, platinum and nickel are dispersed in a ZSM-5 molecular sieve, and a metal packaging type NiPt-coated ZSM-5 catalyst is synthesized. When the catalyst is applied to methane and normal hexane co-aromatization reaction, the catalyst shows relatively high methane conversion rate and aromatic hydrocarbon selectivity. The molecular sieve packaging mode not only can improve the dispersity of the active component so as to improve the capability of activating methane, but also can improve the high-temperature stability of the active component and prolong the service life of the catalyst, and can effectively solve the problems of high reaction temperature and poor catalyst stability in the existing methane aromatization technology. And the method has a good practical application prospect.

The invention provides a preparation method and application of a novel cross-linked polyarylpyridine anion exchange membrane, and the preparation method comprises the following steps: using one or more aromatic compounds as a polymer monomer main chain, and condensing with 4-acetylpyridine under the catalytic action of superacid to obtain a polymer intermediate; a quaternary ammonium salt alkenyl compound is introduced as a crosslinking agent, and crosslinking is completed by heating in the film forming process. The introduction of the novel cross-linking agent is beneficial to the construction of a two-dimensional membrane structure and can improve the mechanical properties of the anion exchange membrane, the heating cross-linking condition is beneficial to the rapid adjustment of the cross-linking degree of the ion exchange membrane and the reduction of the swelling coefficient of the ion exchange membrane during use, and the quaternary ammonium salt alkenyl compound is beneficial to the construction of an ion exchange channel and the reduction of the membrane resistance. The ion flux is improved; the anion exchange membrane has excellent spatial size stability and membrane framework stability, strong oxidation reduction resistance, strong flexibility, long service life and the like, and can be applied to the fields of flow batteries and the like. # imgabs0 #

The invention relates to the field of polyolefin catalytic aromatization, and discloses a low-temperature polyolefin aromatization method based on a zeolite-encapsulated metal catalyst, which comprises the following steps: heating and melting a zeolite-encapsulated metal catalyst as a lower bed layer and a mixture of polyolefin plastic and a lamellar ZSM-5 molecular sieve as an upper bed layer to carry out aromatization reaction; the zeolite encapsulated metal catalyst comprises a matrix and metal encapsulated in the matrix, and the matrix is an HZSM-5 molecular sieve. By designing a double-bed series catalytic route, polyolefin is firstly converted into low-carbon olefin, and then olefin aromatization reaction is performed, so that the reaction temperature and the content of heavy aromatic hydrocarbon are reduced; according to the catalyst for catalyzing the olefin aromatization reaction in the lower bed layer, the metal nanoparticles are encapsulated in zeolite crystals, the pore channel confinement effect is exerted to avoid generation of a large-size carbon deposition precursor, the diffusion speed of reactants and product molecules is adjusted to inhibit a deep reaction, a stable catalytic system is formed, and the catalytic activity of the catalyst is improved. The aromatic hydrocarbon yield and the service life of the catalyst can be improved.

The invention provides an auxiliary cross-linking type polyarylpyridine anion exchange membrane as well as a preparation method and application thereof, and the preparation method of the auxiliary cross-linking type polyarylpyridine anion exchange membrane comprises the following steps: condensing one or more aromatic compounds and 4-acetylpyridine to obtain a polymer intermediate; a halogenated alkenyl compound is introduced as a cross-linking agent in the quaternization process, and an auxiliary cross-linking agent is additionally added in the film scraping process. The participation of the auxiliary cross-linking agent can make up the defect of low cross-linking degree in the alkenyl free radical reaction process, and is beneficial to the construction of a two-dimensional membrane structure with stable cross-linking degree. The auxiliary crosslinking type polyarylpyridine anion exchange membrane disclosed by the invention has relatively strong mechanical property, excellent membrane framework stability, relatively strong chemical stability, relatively strong swelling resistance and relatively long service life; the auxiliary crosslinking type polyarylpyridine anion exchange membrane disclosed by the invention has good application prospects and large-scale popularization potential in the field of flow batteries.

The invention discloses an n-octane aromatization hierarchical pore structure catalyst and a preparation method and application thereof.According to the preparation method, a hierarchical pore three-dimensional nanosheet ZSM-5 molecular sieve serves as a catalyst carrier, and on the basis, the Zn-modified hierarchical pore three-dimensional nanosheet ZSM-5 molecular sieve catalyst is prepared through an equivalent-volume impregnation method; the prepared n-octane aromatization hierarchical pore structure catalyst not only has the advantages of high yield, short preparation time, simple preparation method and the like, but also has a unique three-dimensional nanosheet shape, a rich mesoporous structure and a relatively large specific surface area. The catalyst is applied to an n-octane aromatization reaction, and has the characteristics of high aromatic hydrocarbon selectivity, long service life, stable catalytic performance, flexible process operation and the like.

The invention provides a method for preparing alkane olefin by catalyzing microalgae pyrolysis through an alkali modified molecular sieve, and belongs to the field of biomass energy utilization. According to the method, the ZSM-5 molecular sieve raw powder is modified by adopting the alkaline solution, so that the pore structure of the ZSM-5 molecular sieve can be improved, the distribution of acidic sites can be optimized, the regulation and control of a microalgae pyrolytic reaction path can be realized under relatively mild conditions, the deoxidation reaction can be promoted, the content of oxygen-containing products can be reduced, and the generation of alkane olefin substances can be promoted; the aromatization reaction strength is reduced, and the selectivity of light hydrocarbons is improved, so that the content of alkanes and olefins in the pyrolysis bio-oil reaches 70% or above, and the quality of the pyrolysis bio-oil is remarkably improved. Results of the embodiment show that the pyrolysis bio-oil provided by the invention is subjected to gas chromatography-mass spectrometry detection, and the alkane-olefin peak area content is greater than 70%.

The invention provides a method for preparing n-propylbenzene by taking n-nonane as a raw material, and relates to the technical field of organic synthesis. The method comprises the following steps: carrying out aromatization reaction on gaseous n-nonane under the action of a catalyst to obtain n-propylbenzene; the catalyst comprises a molecular sieve and metal components loaded in a molecular sieve crystal, the metal components comprise a main metal and an auxiliary metal, the main metal comprises one or more of Pd, Pt and Rh, the auxiliary metal comprises one or more of Ag, Sn, Re and Zn, and the main metal and the auxiliary metal form an alloy sub-nanocluster. According to the method, high-selectivity preparation of the n-propylbenzene is realized by utilizing the low-price n-nonane, so that the low-value n-nonane is converted into the high-value n-propylbenzene in a high-selectivity manner, and a new way is opened up for efficient preparation of the n-propylbenzene. Results of the embodiment show that by adopting the method for preparing the n-propylbenzene, the conversion rate of the n-nonane is more than 80%, and the selectivity of the n-propylbenzene is more than 75%.

The invention belongs to the technical field of composite materials, and particularly relates to aldehyde aromatic compound crosslinked polyethyleneimine as well as a preparation method and application thereof. Amino groups in polyethyleneimine are combined with different substances, so that the adsorption capacity of the aldehyde aromatic compound crosslinked polyethyleneimine is improved; the polyethyleneimine has high cationic property in water and can neutralize and adsorb anions or chelate noble metal ions, so that the adsorbability of noble metal is improved; amino in a polyethyleneimine structure can be subjected to a cross-linking reaction with an aldehyde aromatic compound, and C = N double bonds are introduced into polyethyleneimine, so that the adsorption performance on noble metal ions is improved. The aldehyde aromatic compound cross-linked polyethyleneimine provided by the invention has a mesoporous structure, gold ions and platinum ions are adsorbed to the surface of a material and the inside of pore channels through various mechanisms such as electrostatic attraction, chelating coordination and oxidation reduction, and the adsorption capacity to metal ions, especially the gold ions and the platinum ions, is improved.

Provided is a method for decomposing polycyclic aromatic hydrocarbons using a complex decomposition bacterial consortium. [Solution] A method for decomposing polycyclic aromatic hydrocarbons using a decomposition bacterial flora complex is disclosed, which includes the following steps: first, decomposition bacterial flora is added to organic-contaminated water and allowed to react for 1 to 48 hours; then, a pre-complex is added and allowed to react continuously until the total time reaches 72 hours, so that the decomposition bacterial flora and the pre-complex form a complex system; this process can avoid the adverse effects of the pre-complex on the decomposition bacterial flora and successfully achieve decomposition; the present invention adds a decomposition bacterial flora and a pre-complex of calcium peroxide and ferrous sulfate heptahydrate as a complex system to polycyclic aromatic hydrocarbon-contaminated water, and can effectively remove polycyclic aromatic hydrocarbons through the decomposition reaction; compared with conventional microbial purification and oxidative purification, this method is efficient, environmentally friendly and has high applicability.

The invention relates to the field of organic chemistry, and particularly discloses a synthetic method of berberine hydrochloride. The synthesis method of berberine hydrochloride comprises the following steps: S1, carrying out reductive amination reaction on bromohomopiperony lamine and o-veratraldehyde to synthesize an intermediate II; s2, carrying out Suzuki coupling reaction on the intermediate II and an organic boron compound under the catalysis of a palladium metal organic matter to synthesize an intermediate III; s3, the intermediate III and organic chloride are subjected to an amino chlorination reaction, and an intermediate IV is synthesized; s4, carrying out intramolecular atom transfer radical addition and intramolecular Friedel-Crafts alkylation cascade reaction on the intermediate IV in a mixed solvent under the catalysis of a copper catalyst to synthesize an intermediate V; and S5, carrying out oxidative aromatization reaction on the intermediate V and iodine under the catalysis of alkali to synthesize berberine hydrochloride. The synthesis process is simpler, reaction conditions are easier to control, the yield is high, and the method is suitable for industrial production.

The invention discloses a high-performance thermosetting resin plugging material, a preparation method and a water-based drilling fluid, and relates to the technical field of oilfield chemistry, and the preparation method of the plugging material comprises the following steps: stirring an aromatic compound containing two double bonds with sodium tungstate, a transfer catalyst and a hydrogen peroxide solution at room temperature for reaction, and purifying to obtain an epoxy compound; the preparation method comprises the following steps: heating an aromatic compound containing an aldehyde group, ammonium formate and a palladium-carbon catalyst with nitrogen to react to obtain an amine compound, transferring the epoxy compound and the amine compound into a size-adjustable mold, carrying out heating curing treatment, carrying out low-temperature ball milling on a crude product to obtain plugging material particles, and preparing the water-based drilling fluid by using the plugging material particles. The specific aromatic rigid framework monomer is selected, and the molar ratio of epoxy to the curing agent is accurately controlled, so that the mechanical strength and thermal stability of the material are remarkably optimized, and the plugging material has a good treatment effect on cracks and pores in complex stratums.

To provide a novel process for preparing low molecular weight aromatic compounds such as benzene, toluene, and xylene (BTX) from plastics.SOLUTION: There is provided a thermo-catalytic pyrolysis process for preparing aromatic compounds from a feed stream comprising plastic, including the steps of: a) subjecting a feed stream comprising a plastic to a pyrolysis treatment at a pyrolysis temperature in the range of 600 to 1000°C to produce pyrolysis vapors; b) optionally cooling the pyrolysis vapors to a temperature that is below the pyrolysis temperature; c) contacting the vaporous phase with an aromatization catalyst at an aromatization temperature in the range of 450 to 700°C, which is at least 50°C lower than the pyrolysis temperature, in a catalytic conversion step to yield a conversion product comprising aromatic compounds; and d) optionally recovering the aromatic compounds from the conversion product.SELECTED DRAWING: None

The invention relates to an open-shell aromatized free radical compound as well as a preparation method and application thereof, and belongs to the technical field of organic free radical compounds. The technical problems of multiple synthesis steps, complex process, high difficulty, poor stability, difficulty in regulation and control and the like of the organic free radical compound in the prior art are solved. The chemical structural formula of the open-shell aromatized free radical compound is shown as a formula (I). The open-shell aromatized free radical compound has the potential of preparing a lithium battery positive electrode, an organic electron spinning device and a photothermal conversion material. The invention provides a preparation method of a lithium ion battery pole piece containing the open-shell aromatized free radical material.

An antifungal composition including a first essential oil, and a second essential oil, where the composition is configured to reduce disease onset, pathogen spread, or a combination thereof. Further, an antifungal compound including one or more aroma compounds selected from 4-(4-hydroxyphenyl)-2-butanone, furaneol, ethyl methylphenylglycidate, ethyl hexanoate, ethyl butanoate, beta-ionone, alpha-ionone, (R)-(+)-limonene, (S)-(-)-limonene, cis-3-Hexen-1-ol, nerol, linalool, 2-heptanone, alpha-terpineol, beta-damascenone, β-caryophyllene, ethyl 2-methylbutanoate, β-myrcene, gamma-octalactone, alpha-humulene, nerolidol, (E,E)-2,4-decadienal, (E,E)-α-farnesene, vanillin, phenylethyl acetate, citral, 3-methylbutan-1-ol, or a combination thereof.

The invention discloses a method for catalyzing carbon-hydrogen bond hydroxyl nitration of an aromatic compound by iron, which comprises the following steps: in a solvent, by taking nitrite as a nitro source, hydrogen peroxide as an oxidizing agent, iron as a catalyst and amino acid and derivatives thereof as ligands, catalyzing the aromatic ring of the aromatic compound to carry out carbon-hydrogen bond hydroxyl nitration reaction; the hydroxyl and nitro disubstituted aromatic compound is generated. According to the method, the hydroxyl and nitro disubstituted aromatic compound can be synthesized in one step, and the steps are simple and convenient; the used catalyst and oxidant are wide in source and low in cost; reaction conditions are mild, and selectivity is high; the nitro source is low in toxicity and high in safety; the functional group compatibility of the substrate is good, and the application range of the substrate is wide; the drug molecules and the drug molecule derivatives can be compatible, so that the hydroxyl nitration reaction of the aromatic compound is realized. According to the method disclosed by the invention, under optimized reaction conditions, the yield of the separated target product can reach 84%.

A Silicalite-1 (at) ZSM-5 core-shell molecular sieve takes a Silicalite-1 molecular sieve as a core layer and a ZSM-5 molecular sieve as a shell layer, the particle size is 90-140nm, and a preparation method of the Silicalite-1 (at) ZSM-5 core-shell molecular sieve comprises the following steps: (1) mixing a template agent, a first silicon source and water to obtain a core-layer molecular sieve synthesis system, and performing aging I and crystallization I to obtain an intermediate product; and (2) mixing the intermediate product obtained in the step (1), an aluminum source, a second silicon source, an alkali source, a zwitterion balancing agent and water to obtain a shell molecular sieve synthesis system, carrying out aging II and crystallization II, washing and drying the obtained solid, and roasting to obtain the Sillicalite-1-coated ZSM-5 core-shell molecular sieve. The molecular sieve is high in carbon capacity, simple in preparation method and low in cost, and can be used for a low-carbon alkane catalytic cracking reaction, a heavy aromatic hydrocarbon lightening reaction and a light hydrocarbon aromatization reaction.

To provide a compound useful as a material for an organic device such as an organic electroluminescent element.SOLUTION: Polycyclic aromatic compounds having a structure consisting of one or two or more structural unit (s) represented by the formula (1); (Ra1 to Ra3, Rb1 to Rb4, Rc1 to Rc4 are independently H or substituents; provided that at least one of Rc1 to Rc4 is a group represented by the formula (1-1); Y1 is B; and are independently> N-RNX; RNX is substituted / unsubstituted aryl; at least one of the aryl ring and the heteroaryl ring in the above structure may be fused with at least one cycloalkane, and H in the above structure may be replaced by D. X1 X2. ) SELECTED DRAWING: None

The invention discloses a method for improving the flavor of mulberry wine by screening aroma-producing yeast from mulberries. The method relates to the technical field of microorganisms and solves the problem that the existing mulberry wine preparation process cannot fully reflect the nutritional value and unique flavor of mulberries. Low-temperature treatment is used to increase the relative abundance of target bacterial genera in a sample, and a sample with a high relative abundance of desired bacterial species and a low fungal count is selected. Then, a specific screening method is adopted to separate and molecularly identify the aroma-producing yeast. Yeast with good tolerance and the ability to produce a strong aroma is selected from the sample through tolerance experiments and electronic nose analysis, and the yeast is compounded into a starter. The alcohol content of the obtained mulberry wine is increased by more than 2.2% vol to 13.5% vol, the total ester is increased by 25%, and the relative content of aromatic compounds such as aldehydes and ketones is increased. The aroma-producing yeast species are obtained through directional separation, which can avoid blindness, improve screening efficiency, and enhance the flavor of the fruit wine.

The invention discloses non-activation low-cost high-magnification asphalt-based porous carbon and a preparation method and application thereof.The preparation method comprises the steps that tar with high aromatic hydrocarbon content is subjected to a cross-linking oxidation reaction in an oxygen-containing atmosphere, and oxygen modified asphalt rich in hydroxyl and carboxyl polar functional groups is obtained; the preparation method comprises the following steps: jointly mixing oxygen modified asphalt, a soft template dispersant and a water-organic mixed solvent, and realizing uniform dispersion of the mixture in a mixed phase by utilizing the interaction of a polar functional group on the surface of the oxygen modified asphalt and the soft template dispersant; through a synergistic self-assembly reaction under a hydrothermal condition, core-shell structure micelles are formed by utilizing polarity gradient guidance of a mixed solvent, and precise regulation and control of the pore diameter are realized; after the reaction, carrying out solid-liquid separation, washing and drying to obtain a porous carbon precursor with a mesoporous framework; and performing low-temperature carbonization treatment on the porous carbon precursor in a protective atmosphere, and promoting low-temperature aromatization of asphalt molecules by using hydroxyl radicals introduced in a hydrothermal process to form the asphalt-based porous carbon with a pi-enriched conjugated structure.

The invention is directed to a process for the preparation of an aromatic acid or a phenolic compound, said process comprising reacting a dienophile and a furanic compound comprising an acetal moiety in a Diels-Alders reaction to obtain an aromatic compound comprising said acetal moiety, followed by hydrolysis and oxidation of said acetal moiety into a hydroxide or carboxylate moiety to form the aromatic acid or phenolic compound, wherein said dienophile is selected from the group consisting of alkylenes, acetylenes, acrylates, maleates, fumarates, maleimides, propiolates, acetylene dicarboxylates, and benzynes and wherein said acetal moiety is bound directly to the 2-position of the furanic compound.

This application proposes methods for synthesizing aromatic compounds using ionizing radiation based on N₂O, and methods for synthesizing aromatic compounds using industrial waste gas. The method includes: placing benzene and a combined gas containing N₂O in a sealed container, and adjusting the volume of the combined gas to bring the benzene in the sealed container to its saturated vapor pressure; irradiating the sealed container with radiation to cause the benzene to react and yield the aromatic compounds, wherein the radiation includes X-rays, gamma rays, or electron beams, the energy range of which is 0.0110 MeV, and the absorbed dose rate is 0.1 Gy / min to 1000 kGy / min. This method can synthesize aromatic compounds such as phenol in one step using ionizing radiation based on N₂O without the use of a catalyst, achieving precise and high-value utilization of N₂O.

The application provides a preparation method of high-stability nanoscale ZSM-5 catalyst and application thereof, and comprises the following steps: (1) preparing full-silicon molecular sieve silicalite-1 by a pre-crystallization method with a template agent, a silicon source and water as raw materials; (2) adopting a seed method, taking the full-silicon molecular sieve silicalite-1 as seed crystals, mixing the seed crystals with reaction raw materials including a template agent, a silicon source, an aluminum source and water, and then treating again by a pre-crystallization method, and then preparing ZSM-5 catalyst by crystallization, ammonia exchange and metal loading in sequence. The preparation method obtains high-stability light alkane aromatization ZSM-5 catalyst with secondary small particles of about 50 nm stacked together. The catalyst can maintain activity for a long time in the process of propane anaerobic aromatization reaction, has low surface carbon, high aromatic hydrocarbon selectivity and high propane conversion rate; and the synthesis method reduces the use of template agents, is green and environment-friendly, and has good application prospect in the field of propane aromatization catalyst preparation.

Described herein are compositions comprising a lanthanide (III) modified fatty acid and methods of treating cancer with the composition. In particular, the application includes a lanthanide (III) modified fatty acid is a 9-R′, 10-R″ tri octadecanoate compound. This lanthanide (III) modified fatty acid can be combined with additional therapeutic agents, such as chemotherapeutic agents, radiopharmaceuticals, hormone therapies, CDK inhibitors, epigenetic modulators, selective estrogen receptor modulators, selective estrogen receptor degraders, aromatase inhibitors, phosphatidyl inositol-3-posphate kinase inhibitors, ATP-adenosine axis-targeting agents, signal transduction inhibitors, RAS signaling inhibitors, PI3K inhibitors, arginase inhibitors, HIF inhibitors, AXL inhibitors, PAK4 inhibitors, immunotherapeutic agents, immune checkpoint inhibitors, and agonists of stimulatory or co-stimulatory immune checkpoints.

The invention discloses a low-carbon hydrocarbon / alcohol aromatization Zn / ZSM-5 catalyst as well as a preparation method and application thereof, and belongs to the technical field of aromatization catalysts. By adjusting the pH value of the zinc solution used in the preparation process of the Zn / ZSM-5 catalyst, the distribution and existence form of Zn species on the HZSM-5 molecular sieve can be effectively regulated and controlled, so that the dehydrogenation capability and aromatization selectivity of the Zn / ZSM-5 catalyst are remarkably improved. Meanwhile, by optimizing the existence state of the Zn species, the loss of the Zn species under the high-temperature reaction condition can be effectively reduced, and the service life of the catalyst is remarkably prolonged. In addition, the preparation method provided by the invention is simple in process, convenient to operate and suitable for large-scale industrial production, and has a wide application prospect.

This invention discloses a yam oxylipoic acid compound with aromatase inhibitory activity, its application, and analytical identification methods, belonging to the field of medicinal chemistry. The yam oxylipoic acid compound is (Z)-9-ethoxy-6,10-dihydroxyoctadec-7-enoic acid, a novel compound. This compound can significantly inhibit aromatase activity and possesses the ability to inhibit excessive estrogen production, thus showing promising application prospects and value in diseases related to estrogen imbalance regulation.