44 results about "Ester sulfate" patented technology

The invention discloses a synthesis method of mannitol carbonate sulfate, and belongs to the technical field of organic synthesis. The synthesis method provided by the invention comprises the following steps: reacting 1, 3, 4, 6-tetrachloro-2, 5-hexanediol with chlorosulfonic acid in the presence of an acid-binding agent to obtain an intermediate solution as shown in a formula (II); formula (II); and mixing the intermediate solution as shown in the formula (II) with anhydrous carbonate, heating to a first set temperature for reaction, and then heating to a second set temperature for reaction in the presence of a phase transfer catalyst to obtain the mannitol carbonic sulfate. The whole process route is short, the yield is high, and the total yield of two steps reaches 88% or above; meanwhile, few by-products are generated, the purification difficulty is low, the reaction time is short, few hazardous wastes are generated, operation is easy and convenient, and industrial large-scale production is facilitated.

The present invention provides a composition comprising cellulose nanofiber and lignin or a complex thereof for efficiently utilizing lignocellulosic biomass without a residue, and a method for efficiently producing a lignocellulose-derived material from lignocellulosic biomass. The present invention relates to a composition comprising cellulose nanofiber having a sulfate group and a lignin-derived substance, and a method for producing a lignocellulose-derived material.

The invention relates to the technical field of gel preparations, in particular to selenium disulfide gel and a preparation method thereof. The raw materials for forming the selenium disulfide gel are selected from selenium disulfide, a metal ion complexing agent, carbomer, a pH regulator, lauryl sulfate salt and a solvent. The selenium disulfide gel has excellent stability, and particularly, the selenium disulfide gel is not prone to discoloring and layering after being stored at high temperature for a long time.

The present invention relates to a synthesis method for sulfate ester (amine) type linker polymer, which comprises a monomer containing hydroxyl or amino group and sulfuryl fluoride monomer proceeding a polycondensation reaction under a basic condition by one-pot process. As compared to the traditional polyester synthesis method, the present invention is economical; the reaction conditions are mild and easy to control, the reaction process is simple and easy to operate; the post-treatment process is simple with little environmental pollution, which is beneficial to industrial production. In addition, the bisphenol type polysulfate ester compounds synthesized by the present invention have excellent mechanical performances, dielectric performances, tolerance performances, and abrasion resistance performances.

A non-aqueous electrolyte solution for a secondary battery, a secondary battery, and an electrical apparatus are described. The non-aqueous electrolyte solution for a secondary battery of the present application comprises an additive and a non-aqueous solvent, the non-aqueous solvent comprises dimethyl carbonate, and the additive comprises a cyclic sulfate compound as represented by formula (I);

The invention provides a method for treating excessive halogen in an ionic photoacid generator, which comprises the following steps: adding a crude product of the ionic photoacid generator to be treated into a reactor, adding a solvent, stirring, then adding a sulfate reagent, reacting, then adding an anion raw material, continuing reacting, and after the reaction is completed, carrying out post-treatment to obtain the excessive halogen in the ionic photoacid generator. The ionic photoacid generator with qualified halogen content is obtained. The halogen content is less than or equal to 10 ppm. And the sulfate reagent is dimethyl sulfate, diethyl sulfate, dipropyl sulfate or dibutyl sulfate. The method for treating the residual halogen in the ionic photoacid generator is mild in reaction condition, simple in technological process, environment-friendly and high in yield, and can be widely applied to preparation of iodonium salt and sulfonium salt photoacid generators.

The invention discloses a method for preparing levoglucosenone by catalyzing cellulose pyrolysis through a sulfate-based donor. According to the method, cellulose and carrageenan are used as raw materials, a natural sulfate group in the carrageenan is used as a built-in catalytic source, the cellulose and the carrageenan are fully mixed and then placed in an inert atmosphere for co-pyrolysis, volatile components generated by pyrolysis are collected, and the liquid bio-oil rich in levoglucosenone is obtained after cooling. According to the method, an intrinsic functional group (sulfate group) of natural biomass is converted into a catalytic activity source, so that the green idea of catalytic conversion from biomass to biomass is realized, and a new green and sustainable catalysis way is provided; the method is low in production cost, simple in process, convenient to operate and high in yield and selectivity of the levoglucosenone, and has good industrial amplification and large-scale application potential.

The present application relates to the technical field of battery, in particular to a cyclic sulfate composition, and its preparation method and application. The composition comprises a cyclic sulfate compound represented by formula (1), and further comprises a sulfate compound represented by formula (A) and / or a carbonate compound represented by formula (B) in the composition: (1) (A) (B). The present application obtains a composition containing a target product, and the composition contains by-products in addition to the target impurities. Advantageously, the by-products with specific structures serve as lithium ion battery electrolyte additives, and have almost the same improvement ability as the target product for the performance of lithium ion batteries. The method in the present application has simple process and mild conditions, and can greatly reduce the cost required for removing impurities.

The invention discloses a composite biological suspended filler for treating wastewater, and relates to the technical field of wastewater treatment. 15-25 parts of activated carbon powder; 10 to 20 parts of biological ceramsite particles; 3-8 parts of a microbial nutrient; 1-3 parts of a cross-linking agent; according to the invention, fucoidan in the marine organism extract is adopted, and a large amount of hydroxyl groups and sulfate groups contained in molecules of fucoidan can provide abundant nutrient substances for microorganisms, so that a wet microenvironment beneficial to growth is created, and attachment and reproduction of the microorganisms on the surface of the filler are greatly promoted; the biomass of microorganisms is increased, and the adhesion amount and activity of the microorganisms on the filler are remarkably improved through the synergistic effect with the modified polyethylene resin, the activated carbon powder and the biological ceramsite particles, so that the treatment capacity on pollutants in wastewater is improved, and a wastewater treatment system can operate more efficiently.

The invention discloses a star-shaped hyperbranched compatilizer and a preparation method thereof, and a PC / PMMA / SPs alloy material and a preparation method thereof. The preparation method of the star-shaped hyperbranched compatilizer comprises the following steps: preparing alkyl Gu2 by taking an aqueous solution of 1, 7-diaminoheptane and methylisourea hemi-sulfate salt as a main raw material; the preparation method comprises the following steps: mixing an aqueous solution of sodium hexametaphosphate and an aqueous solution of alkyl Gu2, carrying out spontaneous liquid-liquid phase separation under the action of a salt bridge to form a condensation body, concentrating a lower-layer phase to obtain a 3D cross-linked supramolecular polymer network between sodium hexametaphosphate and alkyl Gu2, and carrying out rotary evaporation and drying to obtain a final product, namely the star-shaped hyperbranched compatilizer SPs. The compatilizer SPs disclosed by the invention is applied to a PC / PMMA system alloy, so that the difficulties of phase separation and optical performance of the PC / PMMA system are broken through, the transparency of the alloy material is ensured, and meanwhile, the mechanical property of the alloy material is improved.

The application provides sulfated derivatives of fucosylated chondroitin sulfate oligosaccharides and application thereof, and belongs to the technical field of marine drugs. The structure of the sulfated derivatives of fucosylated chondroitin sulfate oligosaccharides is mainly a disaccharide repeating unit with GlcA and GalNAc connected through a beta-1,3 / beta-1,4 glycosidic bond as a main chain, and a fucose connected to the O-3 position of GlcA as a side chain; sulfation occurs at any 1-3 positions of C4 and / or C6 of the acetylglucosamine in the main chain, and C2,3,4 of the fucose in the side chain. Through in-vivo and in-vitro level verification, the application plays an anti-tumor metastasis role by significantly inhibiting the adhesion of tumors to endothelium, platelets and the like and tumor angiogenesis, so as to use S-dFCS as an active substance, prepare a medicine or a health product with the aid of a pharmaceutically acceptable carrier, and be capable of being used for preventing and treating tumors and diseases related to postoperative metastasis.

The present application discloses an electrolyte solution, a battery and an electrical device. The electrolyte solution includes a first additive, a second additive and a third additive. The first additive includes a sulfate ester compound. The second additive includes:where Z1-Z4 each independently include an oxygen atom or a sulfur atom. The third additive includes at least one of fluorosulfonate, tetrafluoroborate, difluorophosphate, difluoro(oxalato)borate, bis(oxalato)borate and difluorobis(oxalato)phosphate. Based on the total mass of the electrolyte solution, content W1 of the first additive, content W2 of the second additive and content W3 of the third additive satisfy W1:W2:W3=1:(0.1-1.5):(0.02-2.5).

The preparation method comprises the following steps: by taking cyclic sulfite as a raw material and a hierarchical porous titanium silicalite molecular sieve as a solid catalyst, dropwise adding hydrogen peroxide into a compatible organic solvent system to carry out oxidation reaction, so as to obtain the cyclic sulfate-based electrolyte additive for the lithium ion battery. And carrying out simple post-treatment (catalyst recovery, layered drying and crystallization purification) to obtain a target product. Results show that the method can realize preparation of high-purity (99.5% or above) and high-yield cyclic sulfate, the catalyst and the organic solvent can be directly recycled to reduce the cost, no high-salinity wastewater is discharged in the reaction process, and the method has both economical efficiency and environmental protection property. Besides, the prepared cyclic sulfate shows excellent thermal stability due to the molecular weight advantage, the charge-discharge performance and the cycle adaptability of the lithium ion battery can be effectively improved, and a feasible path is provided for green industrial production and performance upgrading of a lithium battery electrolyte additive.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a sulfate-aluminum composite electrolyte and a preparation method and application thereof. The sulfate-aluminum composite electrolyte comprises an electrolyte solute, a non-aqueous solvent and an electrolyte additive, the electrolyte additive comprises an aluminum alcohol additive and a sulfate additive; according to the invention, aluminum alkoxide and a sulfate compound are introduced into the electrolyte as a bifunctional additive, so that the cycling stability and the capacity retention rate of the lithium secondary battery in a high-temperature environment can be remarkably improved.

This invention relates to a polysulfate based on 4,4'-dihydroxydiphenyl sulfide, its preparation method, and its applications. The polysulfate is prepared using 4,4'-dihydroxydiphenyl sulfide as the core raw material. The preparation method involves dissolving 4,4'-dihydroxydiphenyl sulfide and imidazole in dichloromethane, adding tert-butyldimethylchlorosilane, reacting at room temperature for 24 hours, and then post-processing to obtain monomer 1. Alternatively, 4,4'-dihydroxydiphenyl sulfide and triethylamine are dissolved in dichloromethane, and sulfuryl fluoride gas is introduced, reacting at room temperature for 24 hours, and then post-processing to obtain monomer 2. Monomer 1 and monomer 2 are then subjected to solution polymerization or melt polymerization to obtain the polysulfate. The polysulfate of this invention exhibits high crystallinity and excellent electrical storage performance; the preparation process is simple and easy to control, and the cost is low; when used as an active material, the ITO / polysulfate / Al sandwich structure device exhibits non-volatile WORM-type storage characteristics.

The invention discloses a stain-resistant automobile interior finish paint and a preparation method thereof, and belongs to the technical field of automobile paints. The stain-resistant automotive interior finish paint comprises a component A and a component B, the molar ratio of hydroxyl in the component A to isocyanate in the component B is 1: (1-1.5), and the component A comprises modified hydroxyl acrylic resin, modified nano silicon dioxide, a water-based wetting agent, a water-based dispersing agent, pigment filler, deionized water, a neutralizer and a hydrophobic modifier octafluoropentanol; the component B adopts water dispersible polyisocyanate; wherein the modified hydroxy acrylic resin is obtained by modifying methyl methacrylate, n-butyl acrylate, hydroxypropyl acrylate, 4-chlorobutyl acrylate, methacrylic acid, allyloxy isomeric alcohol ether sulfate ammonia salt and a macrocyclic high steric hindrance functional monomer; the macrocyclic functional monomer with high steric hindrance comprises 4-ethylene-2-hydroxybenzoic acid N-vinyl imidazole; the modified nano silicon dioxide is prepared from ethyl orthosilicate, phenyltrimethoxysilane and trimethylethoxysilane by adopting a Stber method.

The present application relates to a kind of trihydrocarbylsilyl phosphonate ester-based sulfates and preparation process and with the sulfates as additive secondary battery electrolyte, electrolyte includes trihydrocarbylsilyl phosphonate ester-based sulfates, electrolyte salt, non-aqueous organic solvent and other additives.The structural general formula of trihydrocarbylsilyl phosphonate ester-based sulfates is:trihydrocarbylsilyl phosphonate ester-based sulfates as secondary battery electrolyte additive, can reduce the direct current resistance of battery, promote high temperature cycle and high temperature storage performance, inhibit the inflation after high temperature storage of battery.

The application discloses a method for extracting fucoidan, and comprises the following steps: S1, adding brown algae into water for extraction, adding calcium hydroxide into the obtained extract, stirring, and filtering to obtain filtrate a; S2, adding phosphoric acid into the filtrate a to adjust the pH of the filtrate a to 3.0-3.5, then adding chitosan / activated carbon compound, stirring, and filtering to obtain decolorized and refined liquid; S3, adding alkali solution into the decolorized and refined liquid to adjust the pH to 6.0-8.0, standing, and filtering to obtain filtrate b; and S4, performing ultrafiltration on the filtrate b to obtain fucoidan sulfate solution. The method can selectively adsorb pigments, polyphenols and fishy smell precursor substances by adding chitosan / activated carbon compound in the specific acid environment adjusted by phosphoric acid for synergistic decolorization and deodorization, without loss of fucoidan sulfate; the product obtained after ultrafiltration has low conductivity, good stability, and high fucoidan sulfate content and high yield.

A process comprises continuously adding a first stream and a second stream to a sulfonation vessel, wherein the first stream comprises aminoethanol sulfate ester (AES) and the second stream comprises an aqueous solution of sodium sulfite (Na2SO3). The process comprises continuously mixing the AES and the aqueous solution of Na2SO3 in the sulfonation vessel, thus producing a mixture. The process comprises continuously subjecting the mixture to heat in the presence of an inert gas, thus converting the AES to the taurine via sulfonation. In an aspect, the AES has a residence time of no more than four hours in the sulfonation vessel. In an aspect the heating step is conducted at a temperature of at least 115° C. and a pressure of at least 200 psi.

This application provides an electrolyte for supercapacitors and a method for preparing the same. The electrolyte comprises a mixture of an electrolyte functional additive, an organic solvent, and a lithium salt. The general structural formula of the electrolyte functional additive is as follows: ; wherein R1 is independently selected from any one of hydrogen, substituted or unsubstituted alkoxy groups, and sulfate groups; R2 is independently selected from any one of hydrogen and sulfate groups; and R3 is independently selected from any one of hydrogen, aldehyde, cyano, and substituted sulfonyl groups. This additive, through the synergistic effect of multiple functional groups within the molecule, can simultaneously form a stable protective layer at the positive and negative electrode interfaces, effectively inhibiting electrolyte decomposition and transition metal dissolution, and improving interfacial ionic conductivity and mechanical strength. Simultaneously, its specific structure can capture harmful substances in the electrolyte, regulate the lithium-ion solvation structure, significantly improve the high-temperature storage stability, rate performance, and high and low temperature discharge retention rate of supercapacitors, and simultaneously optimize energy density, cycle life, and safety.

The embodiment of the invention provides an electrolyte for a supercapacitor and a preparation method thereof, the electrolyte comprises an electrolyte functional additive and a mixture of an organic solvent and a lithium salt, and the structural general formula of the electrolyte functional additive is shown in the specification, wherein R1 is independently selected from any one of hydrogen, a substituted or unsubstituted alkoxy group and a sulfate group; r2 is independently selected from any one of hydrogen and a sulfate group; and R3 is independently selected from any one of hydrogen, an aldehyde group, a cyano group and a substituted sulfonyl group. The additive can simultaneously form a stable protection layer on a positive and negative electrode interface through the synergistic effect of intramolecular polyfunctional groups, electrolyte decomposition and transition metal dissolution are effectively inhibited, and the ionic conductivity and mechanical strength of the interface are improved. Meanwhile, the specific structure can capture harmful substances in the electrolyte, adjust the solvation structure of lithium ions, remarkably improve the high-temperature storage stability, the rate capability and the high-low temperature discharge retention rate of the supercapacitor, and synchronously optimize the energy density, the cycle life and the safety.

This application provides a secondary battery cell, a secondary battery, and an electrical device. The secondary battery cell includes an electrolyte, which includes additives, including sulfated ester compounds. The mass fraction w1 of the sulfated ester compounds in the electrolyte, based on the total mass of the electrolyte, satisfies: 0.01% ≤ w1 ≤ 5%. The positive electrode includes a positive current collector and a positive electrode film layer disposed on at least one surface of the positive current collector. The coating weight w2 of one side of the positive electrode film layer satisfies: 77.9 g / m³. 2 ≤w2≤159.6g / m 2 This secondary battery cell possesses excellent power performance and high-temperature storage performance.

The present invention provides a method for sterilizing bacteria present in a biofilm, and a liquid composition used therein, which exhibits excellent bactericidal properties even in the coexistence of biofilm and organic matter contamination. [Solution] A method for sterilizing bacteria present in a biofilm, comprising bringing a liquid composition containing the following components (a) and (b), and water, into contact with the biofilm in the presence of organic matter contaminants. (a) Components: Quaternary ammonium salt having two long-chain alkyl groups with 8 carbon atoms, represented by general formula (a1). (b) Components: Compounds having an aliphatic hydrocarbon group with 8 to 18 carbon atoms, and a group selected from a sulfate ester group, a sulfonic acid group, and salts thereof.

This application relates to a battery and an electrical device. The battery includes a positive electrode, a negative electrode, a separator, and an electrolyte; the positive electrode active material layer includes aluminum; the separator includes an oxide solid electrolyte coating; the electrolyte includes a solvent, an additive, and a lithium salt; the solvent includes a first solvent and a second solvent; the additive includes a first additive and a second additive; the first solvent includes propylene carbonate and / or ethylene carbonate, and the second solvent includes ethyl 2,2-difluoroacetate and / or trifluoroethyl methyl carbonate; the first additive includes mannitol sulfate, and the second additive includes ethylene sulfate; 0.08≤(A+C+D)×10000 / X≤0.77; 0.05≤(C+D)×100 / (B+W)≤2.77; 3.23≤(C+H) / B≤63.97. The solution provided in this application results in a battery exhibiting excellent thermal shock safety and high and low temperature cycling performance.

This invention relates to the field of adhesive technology, specifically to a styrene-butadiene latex composite adhesive and its preparation process. The preparation process includes the following steps: preparing a styrene-butadiene latex emulsion; preparing a sulfonated phenolic resin; preparing a sulfonated resin / styrene-butadiene latex emulsion; preparing a polyaniline-copper complex; and preparing the styrene-butadiene latex composite adhesive. This invention uses a sulfur trioxide-pyridine complex to sulfonate the phenolic resin, forming sulfonic acid groups. These sulfonic acid groups can form hydrogen bonds or ionic bonds with substrates such as metals, concrete, and fibers, significantly improving adhesion. Furthermore, the sulfur trioxide-pyridine complex can also form sulfate ester bonds and phenolic hydroxyl bonds during the sulfonation of the phenolic resin. After the sulfonated resin is added to the styrene-butadiene latex, it can improve the adhesive strength of the styrene-butadiene latex. This higher adhesive strength, when added to asphalt, provides better ductility and aging resistance, extending the service life of the asphalt.

The invention provides a corrosion inhibition fluidity control agent as well as a preparation method and application thereof. The general molecular formula of the corrosion inhibition fluidity control agent is shown in the specification, wherein R'is selected from one of alkyl or substituted alkyl with the carbon atom number of C4-C36; r1, R2, R3, R4, R5 and R6 are respectively and independently selected from at least one of H, C1-C5 alkyl carboxylate or substituted alkyl carboxylate, C1-C5 alkyl sulfonate or substituted alkyl sulfonate, C1-C5 alkyl phosphate or substituted alkyl phosphate or C1-C5 alkyl sulfate or substituted alkyl sulfate, and are not H at the same time; m1, m2, m3, m4, m5, m6, n1, n2, n3, n4, n5 and n6 are independently selected from any numerical values of 0-30, and the value of m1 + m2 + m3 + m4 + m5 + m6 and the value of n1 + n2 + n3 + n4 + n5 + n6 are not zero at the same time. The corrosion inhibition fluidity control agent provided by the invention has good gas fluidity controllability and corrosion inhibition in high-temperature and high-salinity oil reservoir gas drive.

The synthesis device comprises a reaction kettle, an external circulation device and a micropacked bed reactor, a stirrer and an ejector are arranged in the reaction kettle, the external circulation device comprises a circulation pump and a circulation tank, the inlet end of the circulation pump is communicated with the lower end of the reaction kettle, and the outlet end of the circulation tank is communicated with the lower end of the micropacked bed reactor. The outlet end of the circulating pump is communicated with the lower end part of the circulating tank, the upper end part of the circulating tank is communicated with the ejector, and the micro-packed bed reactor comprises a reaction pipeline fixedly communicated with the lower end part of the reaction kettle and a glass spring filler filled in the reaction pipeline. According to the synthesis device, the stirrer in the reaction kettle is matched with the external circulation device and is combined with the micro-packed bed reactor to further enhance the two-phase mixing effect, so that residual materials are fully reacted, the reaction efficiency, the product yield and the purity are remarkably improved, the subsequent product purification pressure is greatly relieved, and the production cost is reduced. The method has a great cost advantage for large-scale industrial production.

An electrolyte additive and the use thereof. The electrolyte additive comprises an imidazole sulfonate compound, pentaerythritol bicyclic sulfate and 1,6-diisocyanatohexane.

The invention relates to a process for preparing organyloxy-silyl-terminated polymers (A). The invention is characterized in that in a first step at least one hydroxyl-functional organic compound is reacted with at least one isocyanate-functional compound and also optionally with an organyloxy-containing silane in the presence of at least one metal-containing catalyst (B). In a second step the resulting reaction mixture is mixed with a chelating agent (C) selected from (C1) crown ethers, (C2) heterocycle-containing compounds whose heteroatom in the ring moiety has a free electron pair and which contain at least one further heteroatom with a free electron pair, and (C3) compounds containing at least two groups per molecule selected from the group consisting of carboxyl, carboxylate, sulfate, sulfonate, phosphate, phosphonate, cyanide and cyanate. The invention also relates to polymer compositions containing metal chelate complexes and their use.