171 results about "Terphenyl" patented technology

The invention relates to a crown ether covalent organic framework material as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving a crown ether monomer and an amino monomer in an o-dichlorobenzene solvent, adding a catalyst acetic acid aqueous solution, and uniformly dispersing to form a reaction solution; the method comprises the following steps: freezing a reaction solution through a liquid nitrogen bath, vacuumizing, filling nitrogen, carrying out a heating reaction, and carrying out post-treatment operations such as washing and drying on a reaction product, so as to obtain the crown ether covalent organic framework material BADT-DB18C6-COF. The crown ether covalent organic framework material is formed by condensation of a crown ether aldehyde monomer and an amino monomer, the crown ether monomer is 4, 4 ', 4' ', 4 '''-(6, 7, 9, 10, 17, 18, 20, 21-octahydrodibenzo [B, K] [1, 4, 7, 10, 13, 16] hexaoxacyclo octadecene-2, 3, 13, 14-tetrayl) tetrabenzaldehyde, and the crown ether monomer is 4, 4 ', 4' ', 4'''-(6, 7, 9, 10, 17, 18, 20, 21-octahydrodibenzo [B, K] [1, 4, 7, 10, 13, 16] hexaoxacyclo octadecene-2, 3, 13, 14-tetrayl) tetrabenzaldehyde. The amino monomer is 4 ', 5'-bis (4-aminophenyl)-[1, 1 ': 2', 1 ''-terphenyl]-4, 4''-diamine. The crown ether covalent organic framework material BADT-DB18C6-COF prepared by the invention is mainly used as an adsorbent, is used for adsorbing and recovering uranium, thorium and americium ions from a solution, shows good adsorption capacity on radionuclides U-238, Th-232 and Am-243, and is particularly suitable for the field of spent fuel post-treatment in the nuclear industry.

The invention relates to application of a benzofuran terphenyl compound in medicines, belongs to the field of medicinal chemistry, and particularly relates to a terphenyl compound which comprises a stereoisomer, a geometric isomer, a tautomer, nitrogen oxide, hydrate, solvate, metabolite and ester of the terphenyl compound. The pharmaceutically acceptable salt or the prodrug thereof and the pharmaceutical composition containing the compound are used as medicines, especially used for treating and / or preventing related diseases caused by HIF.

The preparation method comprises the following steps: carrying out acid-catalyzed polymerization on p-terphenyl and a ketone monomer under the action of a first organic solvent and trifluoromethanesulfonic acid, and precipitating, filtering, washing and drying a reaction product to obtain a first polymer; carrying out quaternization reaction on the first polymer and quaternary ammonium salt under the action of a second organic solvent, cooling to room temperature, and adding 1, 6-hexamethylenediamine to obtain a second polymer solution; and coating a substrate with the second polymer solution, and carrying out drying membrane formation, heat treatment and hydroxyl anion exchange to obtain the cross-linked hydroxyl ion exchange membrane. The preparation method disclosed by the invention is simple and suitable for large-scale production, and the prepared anion exchange membrane has high ionic conductivity, excellent dimensional stability and mechanical property and relatively good machinability and application potential, and has a good application prospect in a water electrolysis hydrogen production technology.

The invention discloses a crown ether cation selective separation membrane and a preparation method thereof. The preparation method comprises the following steps: carrying out super acid catalysis on dibenzo-18-crown-6, terphenyl and isatin in dichloromethane to synthesize a precursor; carrying out affinity substitution reaction on the precursor and a flexible side chain with an ion exchange group through a pre-modification method to obtain a functional precursor; dissolving the functionalized precursor in an organic solvent to form a film casting solution, coating on a glass plate, and heating to volatilize the solvent so as to form a film through curing; and taking down the membrane from the glass plate, acidifying in an acidic aqueous solution, washing with deionized water, and extracting with deionized water to obtain the crown ether cation selective separation membrane. The crown ether cation selective separation membrane has the advantages of relatively high mechanical strength, physical and chemical stability and the like. Meanwhile, the crown ether cation selective separation membrane shows performance superior to that of a commercial membrane in the field of monovalent cation separation, and has wide application prospects in the fields of TMAH purification, salt lake lithium extraction, seawater salt extraction and the like.

The invention belongs to the technical field of anion exchange membranes, and discloses a trifluoroacetyl piperazine modified polyaryl piperidine membrane as well as a preparation method and application thereof in a neutral organic flow battery. The preparation method comprises the following steps: preparing a trifluoroacetyl piperazine monomer by adopting an amine ester exchange reaction, carrying out tri-monomer copolymerization on trifluoroacetyl piperazine, N-methyl-4-piperidone and p-terphenyl to obtain a polyaryl piperidine polymer main chain containing a trifluoroacetyl piperazine structure, then carrying out quaternization reaction to obtain a quaternized polymer, casting a membrane, and carrying out freeze drying to obtain the trifluoroacetyl piperazine-containing polyaryl piperidine membrane. The trifluoroacetyl piperazine modified polyaryl piperidine membrane prepared by the method shows very excellent battery performance when being applied to a neutral organic flow battery, the battery performance is greatly improved compared with that of a dimonomer ion exchange membrane without trifluoroacetyl piperazine modification, and the trifluoroacetyl piperazine modified polyaryl piperidine membrane has relatively high capacity retention rate; and the energy efficiency of the membrane is far superior to that of common commercial membranes such as AMVN.

The invention discloses a preparation method of a zwitterionic copolymer ultrafiltration membrane. The preparation method of the zwitterionic copolymer ultrafiltration membrane comprises the following steps: preparing a zwitterionic piperidine monomer; preparing a zwitterionic copolymer; and preparing the zwitterionic ultrafiltration membrane. The zwitterionic copolymer is synthesized by carrying out Friedel-Crafts copolycondensation on terphenyl, a piperidine monomer and a zwitterionic piperidine monomer in a specific proportion. The copolymer has high hydrophilicity and can be directly processed into an ultrafiltration membrane. The ultra-filtration membrane prepared by the preparation method disclosed by the invention is of a compact and interconnected spongy porous structure; the amphoteric ion copolymer membrane prepared by the preparation method can efficiently separate pollutants, shows excellent antifouling performance, can be repeatedly used, solves the problems of poor antifouling capability, low filtering efficiency, short service life and the like of the traditional ultrafiltration membrane, paves a way for directly manufacturing the amphoteric ion copolymer membrane, and provides an effective way for promoting the practical application of the high-performance anti-pollution membrane in a water treatment system.

The invention relates to a preparation method of a solid-phase free radical cross-linking enhanced anion exchange membrane, and belongs to the field of electrolyzed water. The preparation method comprises the following steps: (1) preparing allyl grafted poly-p-terphenyl piperidyl ion exchange resin; and (2) a solid-phase free radical crosslinking method and a preparation method of the enhanced anion exchange membrane. The reinforcing means provided by the invention is efficient and convenient, solves the membrane forming problem caused by poor solubility of the traditional cross-linked resin, and accurately strengthens multiple mechanical properties of the cross-linked anion exchange membrane. The prepared cross-linked anion exchange membrane has good dimensional stability, mechanical tensile property and electrolytic property, and has further industrial application prospects.

This invention in one aspect relates to a method of synthesizing a self-assembled mixed-dimensional heterostructure including 2D metallic borophene and 1D semiconducting armchair-oriented graphene nanoribbons (aGNRs). The method includes depositing boron on a substrate to grow borophene thereon at a substrate temperature in an ultrahigh vacuum (UHV) chamber; sequentially depositing 4,4″-dibromo-p-terphenyl on the borophene grown substrate at room temperature in the UHV chamber to form a composite structure; and controlling multi-step on-surface coupling reactions of the composite structure to self-assemble a borophene / graphene nanoribbon mixed-dimensional heterostructure. The borophene / aGNR lateral heterointerfaces are structurally and electronically abrupt, thus demonstrating atomically well-defined metal-semiconductor heterojunctions.

The invention provides a preparation method and application of an ultrahigh crystalline fluorinated COFs (covalent organic frameworks) material, the ultrahigh crystalline fluorinated COFs material is prepared by reaction of fluorine-containing aldehyde monomer 2 ', 4', 6 '-trifluoro-5'-(4-formyl phenyl)-[1, 1 ': 3', 1 '-terphenyl]-4, 4'-dicarboxaldehyde and amine monomer, and the amine monomer is N1, N1-bis (4-aminophenyl) benzene-1, 4-diamine trihydrochloride or 1, 3, 5-tris (4-aminophenyl) benzene. The fluorinated COFs can efficiently capture Th (IV) ions from an aqueous solution, and the material has the advantages of high crystallinity, large adsorption capacity and excellent recycling performance.

This application relates to a terphenylamine skeleton compound, its preparation method, and its application, belonging to the field of chemical synthesis technology. The preparation method of the terphenylamine skeleton compound of this application includes the following steps: dissolving 2,4,6-triphenylaniline with thiazole-4-carboxaldehyde or thiophene-3-carboxaldehyde in a solvent, conducting a reductive amination reaction under reducing agent conditions, quenching, extraction, washing, concentration to remove solvent, and purification to obtain the terphenylamine skeleton compound. This application provides a simple and mild synthetic method for the natural active products 5'-phenyl-N-(thiazol-4-ylmethyl)-[1,1':3',1''-terphenyl]-2'-amine and 5'-phenyl-N-(thiophene-3-ylmethyl)-[1,1':3',1''-terphenyl]-2'-amine, which can only be extracted from the secondary metabolites of the marine fungus Aspergillus sp. Furthermore, this method utilizes widely available raw materials, which is beneficial for large-scale industrial production of these natural active products.

The invention discloses an ultra-microporous branched polyaryl piperidinyl anion exchange membrane material as well as a preparation method and application thereof, and relates to the field of anion exchange membrane materials for producing hydrogen by electrolyzing water. According to the ultra-microporous branched polyaryl piperidinyl anion exchange membrane material, a four-functionality branching agent with a structure shown in a formula I is introduced into a polymer structural unit of polyterphenyl piperidone, and a polyaryl piperidinyl compound with a four-branch norbornene bis-benzocyclobutane structure is formed. By adopting the technical scheme, the structural rigidity of a polymer skeleton is improved, the formation of a large number of ultra-microporous structures is promoted, the ionic conductivity of the membrane material is effectively improved, and meanwhile, the problem of relatively poor dimensional stability caused by excessive water absorption of the membrane material is solved; the prepared anion exchange membrane has a wide application prospect in the field of hydrogen production by water electrolysis.

The invention relates to a preparation method of a metal halide perovskite-coated three-dimensional cobalt porphyrin-based COFs (Covalent Organic Frameworks) composite material, which comprises the following steps: S1, reacting an aldehyde precursor with an amine precursor in a first organic solvent, and after the reaction is finished, performing post-treatment to obtain a three-dimensional cobalt porphyrin-based COFs material; wherein the aldehyde precursor is 5 ', 5 '', 5'' '', 5'' ''''-(5, 10, 15, 20-tetrayl) tetra (([1, 1': 3 ', 1 ''-terphenyl]-4, 4''-diformyl))-21H, 23H-cobalt porphyrin (II), and the amine precursor is 4, 4'-diamino terphenyl and 2 ', 5'-bis ((methylthio) methyl)-[1, 1 ': 4', 1 ''-biphenyl]-4, 4''-diamine; s2, in a second organic solvent, enabling the three-dimensional cobalt porphyrin-based COFs material to react with lead bromide, and after the reaction is finished, performing post-treatment to obtain a PbBr2 (at) 3D Co-COFs material; and S3, in a third organic solvent, carrying out a reaction on the PbBr2 (at) 3D Co-COFs material and methylamine bromide, and after the reaction is finished, carrying out post-treatment to obtain the metal halide perovskite (at) three-dimensional cobalt porphyrin-based COFs composite material. The preparation method has the advantage that the photocatalytic activity and stability are improved.

The present invention discloses an extraction process for producing heavy aromatic derivatives, which relates to the field of petroleum processing. Specifically, in the present invention, the aromatic hydrocarbon mixed oil is separated through processes such as extraction cutting and separation to prepare heavy aromatic derivatives; the present invention uses a double solvent to selectively dissolve aromatic hydrocarbons and non-aromatic hydrocarbons; in the extraction auxiliary solvent prepared by the present invention, the compatibility between terphenyl and aromatic hydrocarbons is improved, and the extraction effect is better; rare earth complexes contribute to the separation of aromatic hydrocarbons and other organic compounds, thereby improving the extraction effect of aromatic hydrocarbons; morpholine improves its extraction effect by forming an ion pair with aromatic hydrocarbons; it can also form a complex with organic lanthanum to enhance its extraction performance; the extraction auxiliary solvent prepared by the present invention breaks through the limitations of the liquid-phase solvents used in conventional extraction, has good stability and is easy to regenerate, and can conveniently achieve the rapid separation of polycyclic aromatic hydrocarbons; the extraction process for heavy aromatic derivatives of the present invention has the advantages of low extraction temperature and small solvent ratio.

The present application relates to the field of basic organic chemistry synthesis, and particularly to a high-yield preparation method of o-terphenyl based on hydrogen participation; comprising the steps of preparing a catalyst mixed solution, preparing a reaction mixed solution, filling micro-pressure hydrogen, heating and hydrogenation coupling reaction, rough extraction through reduced pressure distillation, and recrystallization and drying; a pre-assembly reaction precursor is formed by a bidentate phosphine bidentate phosphine ligand and a supported palladium catalyst, and a coupling reaction occurs with diphenyl under the cooperation of micro-pressure hydrogen and an acidic cocatalyst; the present application does not need to use traditional halogenated aromatic hydrocarbons and organic metal reagents, solves the problems of isomer mixing and difficult separation and halogen residue affecting the performance of downstream optoelectronic materials, realizes the preparation of o-terphenyl, and simplifies the separation and purification process.

This invention discloses a colorless polyimide film with high fluorine content, high heat resistance, and low expansion, as well as its preparation method and applications. Specifically, a series of high-fluorine terphenyl dianhydride (structure I) and high-fluorine terphenyl diamine (structure II) are copolymerized (or homopolymerized), cast, and heat-treated to prepare CPI optical film materials with excellent properties. This type of CPI film exhibits excellent optical transparency, high glass transition temperature, high thermal decomposition temperature, low coefficient of thermal expansion, high mechanical properties, and low dielectric loss, making it highly suitable for applications in flexible displays, wearable devices, flexible batteries, and 5G high-frequency communications.

To provide a novel organic compound.SOLUTION: An organic compound herein is a triarylamine derivative, wherein one aryl group in the organic compound is an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.SELECTED DRAWING: None

The invention discloses a photochromic high-molecular compound as well as a preparation method and application thereof, and belongs to the technical field of photochromic high-molecular materials. The structural formula of the photochromic high-molecular compound is # imgabs0 #, n is equal to 2-7, x is equal to 60-90, and y is equal to 100-x. The preparation method comprises the following steps: (1) reacting N-methyl-4-piperidone, 2, 2, 2-trifluoroacetophenone and terphenyl to obtain a compound 1; (2) reacting 1-pyrene methanol with CH2Br (CH2) nBr to obtain a compound 2; and (3) reacting the compound 1 with the compound 2 to obtain the photochromic high-molecular compound. The photochromic film material obtained by applying the photochromic polymer compound to the photochromic film material is suitable for high-precision light scribbling and can show excellent adhesive force with glass, and the technical problems that a traditional light scribbling material is low in precision and insufficient in compatibility with a base material are solved.

Achieving the selective and reversible adsorption of CO2 from humid, low partial pressures streams such as the flue gas resulting from the combustion of natural gas in combined cycle power plants ( 4% CO2) is challenging due to the need for high thermal, oxidative, and hydrolytic stability as well as moderate regeneration conditions to reduce the energy of adsorption / desorption cycling. Appending cyclic primary, secondary diamines, exemplified by 2-(aminomethyl)piperidine (2-ampd), to the metal-organic frameworks Mg2(dobpdc) (dobpdc4- = 4,4-dioxidobiphenyl-3,3-dicarboxylate), Mg2(dotpdc) (dotpdc4- = 4,4"-dioxido-[1,1':4',1"-terphenyl]-3,3"dicarboxylate) or Mg2(pc-dobpdc) (pc-dobpdc4-- = dioxidobiphenyl-4,4'-dicarboxylate) produces adsorbents of the classes EMM-44, EMM-45, and EMM-46, respectively, that display step-shaped adsorption of CO2 at the partial pressures required for 90% capture from natural gas flue gas at temperatures up to or exceeding 60 °C. Using a cyclic diamine in place of a diamine functionalized with bulky alkyl groups enables fast adsorption / desorption kinetics with sharp CO2 adsorption and desorption steps.

The invention relates to a preparation method of a high-performance imidazolyl polyionic liquid membrane, and belongs to the technical field of ionic membranes. The method comprises the following steps: by taking N-methyl pyrrolidone as a solvent, reacting 2-phenylbenzimidazole or 2, 4, 5-triphenylimidazole with 4, 4-difluorodiphenyl sulfone, 1, 4-dibromobenzene, 4, 4-dibromodiphenyl or 4, 4-dibromodiphenyl terphenyl in a hydrothermal reaction kettle, washing and drying to obtain a product I; under the catalysis of super organic acid, reacting the product I with biphenyl or p-terphenyl and N-methyl-4-piperidone, washing and drying; adding methyl iodide in an alkaline environment for reaction, and washing and drying to obtain polyion liquid; and dissolving in dimethyl sulfoxide, coating on a glass plate, and drying to prepare the film. The polyionic liquid membrane prepared by the method has more ionic sites, and the ionic conductivity is remarkably improved. Tests show that the stability of the membrane is almost unchanged after 1500 hours under the conditions of 80 DEG C and 1M KOH, the wet mechanical property reaches 60 MPa or above, and the membrane has high chemical and mechanical stability and wide application prospects.

The application belongs to the field of optical films, and particularly relates to a pyridine-containing terphenyl diamine, a colorless and transparent polyimide and a preparation method and application thereof. The structural formula of the pyridine-containing terphenyl diamine is shown as formula (1). The application adjusts the substituents on the diamine monomer and changes the methyl of the nitrogen atom para-position on the pyridine, designs six different pyridine-containing terphenyl diamines introduced into the polyimide, adjusts the charge transfer effect, intermolecular distance and folding degree of the molecular chain of the polyimide, and obtains the colorless and transparent polyimide film with heat resistance, good optical performance and tensile strength. The application has potential application value in the field of flexible devices.

The application relates to a ligand-regulated CuCe-MOF catalyst and a preparation method and application thereof in an electrocatalytic CO2 methane production reaction, and the preparation method comprises the following steps: mixing a Ce solution, an organic ligand solution and a structure directing agent to obtain a mixed solution; the organic ligand is terephthalic acid, 1,4-naphthalene dicarboxylic acid, diphenyl dicarboxylic acid or triphenyl dicarboxylic acid; the mixed solution is centrifuged and dried to obtain a cerium-based metal organic framework powder; the cerium-based metal organic framework powder is dispersed in a third solvent, ultrasonated, and soluble Cu salt is added, and after stirring, the third solvent is volatilized by heating to obtain the CuCe-MOF catalyst. The CuCe-MOF is prepared by using the organic ligand with a single benzene ring, a double benzene ring and a triple benzene ring, the dual synergistic optimization of ligand electronic effect and protonation efficiency is realized, the methane selectivity is greatly improved in the CO2 electro-reduction, and a brand-new synergistic regulation strategy is provided for the structural design and performance optimization of a CO2 RR electro-catalyst.

The present application relates to the technical field of porphyrin-based covalent organic framework material preparation, in particular to a mild preparation method of acetaldehyde-based porphyrin covalent organic framework and application thereof, which comprises the following steps: step one: dispersing ligand 2', 5'-bis((ethyl sulfide) methyl)-[1,1':4',1''-triphenyl]-4,4''-diamine in acetonitrile solution to obtain solution A, and dissolving acetaldehyde-based porphyrin in dichloromethane to obtain solution B; step two: mixing solution A and solution B; step three: adding ferric chloride and acetic acid as catalysts to react under mild conditions to obtain acetaldehyde-based porphyrin covalent organic framework material, which has excellent gaseous iodine adsorption performance. The synthesis method provided by the present application has mild conditions, simplifies the high-temperature time-consuming shortcomings of traditional porphyrin-based covalent organic framework material synthesis, and realizes the synthesis of special ligand covalent organic framework.

The invention provides a rare earth metal-organic framework material as well as a preparation method and application thereof, and relates to the technical field of fluorescence detection, the general formula of the material is {[Ln4 (THBA) 2 (H2O) 5]. 4H2O} n, Ln is Eu < 3 + > or Tb < 3 + > ions; tHBA is a deprotonated [1, 1 ', 4', 1 ''-terphenyl]-2 ', 3, 3', 5, 5 ', 5''-hexacarboxylic acid ligand; the material belongs to a triclinic system, the space group is P1, the material has a three-dimensional porous frame structure, and each Ln < 3 + > ion is in an eight-coordinate configuration; n > = 1, and n is an integer. The material not only shows high-sensitivity, high-selectivity and quick-response detectability to the harmful substance malachite green, but also successfully realizes conversion from a powder material to a portable device, and has wide application prospects in the fields of environmental monitoring, food safety, information encryption and the like.

The application discloses a kind of high-performance pure organic magnetic composite material and preparation method thereof, the composite material is poly (3-hexyl thiophene) as electron donor, using fullerene as electron acceptor, synthesis poly (3-hexyl thiophene) / fullerene composite charge transfer object.Then after 4" -n-pentyl-4-cyanotriphenyl subsequent doping, poly (3-hexyl thiophene) / fullerene / 4" -n-pentyl-4-cyanotriphenyl composite material.The method and material used in the application enhance the degree of charge transfer between pure organic composite material and solid state structure order, so that composite material obtains high room temperature ferromagnetism and Curie temperature, overcome the shortcoming that organic magnetic material is unstable in performance in air, low Curie temperature.Through poly (3-hexyl thiophene), fullerene and 4" -n-pentyl-4-cyanotriphenyl three composite, provide a kind of simple operation, solid state structure packing order, good stability high magnetic pure organic component composite material preparation new method.

The invention relates to a nitrogen-rich acylhydrazone covalent organic framework material as well as a preparation method and application thereof, 5 '-(4-(hydrazinocarbonyl)-3-methoxyphenyl)-3, 3'-dimethoxy-[1, 1 ': 3', 1 '-terphenyl]-4, 4'-dicarboxylic acid dihydrazide, 1, 3, 5-tri (2-formyl pyridine-5-yl) benzene and 4, 4 ', 4' '-(1, 3, 5-triazine-2, 4, 6-triyl) tribenzaldehyde are used as construction units, and the nitrogen-rich acylhydrazone covalent organic framework material is prepared by a one-step method. The compound is synthesized by Schiff base reaction. The nitrogen-rich acylhydrazone covalent organic framework material disclosed by the invention has good chemical stability and can be used as a carrier to load palladium nanoparticles through metal coordination to obtain a composite material, and the composite material shows excellent catalytic activity and substrate universality in catalysis of Heck reaction; the method has potential application value in the fields of biological medicine, green chemistry and the like.

An object of one embodiment of the present invention is to provide a novel organic compound. The organic compound is a triarylamine derivative. The triarylamine derivative has an aryl group including a skeleton in which a naphthyl group is bonded to a naphthylene group. The other two aryl groups are each independently a phenyl group, a biphenyl group, or a terphenyl group. These groups may each have a substituent. As the substituent, an alkyl group having 1 to 6 carbon atoms or a cycloalkyl group having 3 to 6 carbon atoms can be selected.

The invention discloses a covalent organic framework material for purifying aluminum ions in a propiophenone production process and a preparation method of the covalent organic framework material, the two-dimensional covalent organic framework material with carboxyl is prepared from 2, 4, 6-trihydroxybenzene-1, 3, 5-tricarboxaldehyde (THBT) and 4, 4, 6-trihydroxybenzene-1, 3, 5-tricarboxaldehyde (THBT), and the two-dimensional covalent organic framework material with carboxyl is a covalent organic framework material with carboxyl. A two-dimensional covalent organic framework with a terphenyl and hydroxyl structure is formed by condensation of a 4, 4 '-diamino-[1, 1': 4 ', 1'-triphenyl]-2 ', 5'-diol (DMTPD) building unit, and then the two-dimensional covalent organic framework is modified by ethylene diamine tetraacetic acid dianhydride (EDTAD) to obtain the high-molecular polymer. The covalent organic framework material is high in crystallinity, rich in carboxyl, capable of being combined with aluminum ions in the propiophenone synthesis process, beneficial to adsorption separation of the aluminum ions and good in application prospect in the field of adsorption separation.

Cosmetic preparation containing a) 4-dicyanomethylene-2,6-dimethyl-1,4-dihydropyridine-N-(ethyloxysulfate ester salt), b) 2,4,6-Tris-(biphenyl)-1,3,5-triazine.

The invention discloses a hydrophilic heteroporous covalent organic framework, a preparation method thereof and application of the hydrophilic heteroporous covalent organic framework in photocatalytic degradation of organic pollutants, the hydrophilic heteroporous covalent organic framework is prepared from 4 ', 5'-bis (4-formylphenyl)-3 ', 6'-dimethoxy-[1, 1 ': 2', 1 ''-terphenyl]-4, 4 ''-dicarboxaldehyde and 4, 4 '-(benzo [c] [1, 2, 5] thiadiazole-4, 4' '-dicarboxaldehyde, and the hydrophilic heteroporous covalent organic framework is prepared through a hydrothermal method. 2, 7-diyl) diphenylamine is used as a raw material and is subjected to a condensation reaction. The hydrophilic heteroporous covalent organic framework has the advantages of high catalytic activity, stable physical and chemical properties, good mass transfer effect, multiple active sites and the like, can be widely applied to photocatalytic degradation of organic pollutants in a water body as a novel photocatalyst with excellent performance, can realize efficient removal of the organic pollutants in the water body, and has wide application prospects. The application value is high, the application prospect is good, and the method has important significance on effective treatment of organic pollutant wastewater.

The invention discloses a method and a system for preparing hydrogenated terphenyl. The method comprises the following steps: (1) carrying out hydroalkylation reaction on reaction benzene and hydrogen; (2) the hydroalkylation product and the raw material benzene are subjected to normal pressure rectification together, a light component material flow, a benzene-containing material flow and a heavy component material flow are obtained, and the benzene-containing material flow partially or completely enters the step (1) to serve as the reaction benzene; (3) carrying out reduced pressure rectification on the heavy component material flow to obtain a material flow containing cyclohexylbenzene and hydrogenated terphenyl; and (4) mixing the cyclohexylbenzene-containing material flow with diisopropylbenzene, carrying out a transalkylation reaction to obtain a transalkylation product, and recycling the transalkylation product back to the normal-pressure rectification in the step (2). According to the method, hydroalkylation and transalkylation reaction are combined, and normal-pressure rectification and reduced-pressure rectification are combined, so that hydrogenated terphenyl is obtained; wherein a composite mode of the atmospheric tower and the vacuum tower greatly reduces the operation difficulty of the device and improves the separation efficiency.