106 results about "Solvent composition" patented technology

The invention belongs to the technical field of cellulose dissolution, and particularly relates to a method and a solvent for promoting cellulose dissolution and application of the solvent in preparation of high-strength regenerated cellulose fibers. The invention finds for the first time that when a common solvent system of silicon dioxide and cellulose is subjected to ball-milling mixing, the obtained solvent composition not only improves the solubility of the cellulose, but also can obtain a stable spinning solution after dissolving the cellulose, and improves the strength of the regenerated cellulose fiber prepared from the solvent composition.

The invention belongs to the technical field of batteries, discloses a battery electrolyte solvent capable of adapting to a wide temperature range and preparation of a battery, and provides application of a mixed organic solvent as an energy storage battery electrolyte solvent, the mixed organic solvent is composed of tetrahydrofuran, 1, 3-dioxolame and 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether, and the 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether is composed of tetrahydrofuran, 1, 3-dioxolame and 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether. The volume percent content of the 1, 2, 2-trifluoroethyl ether is 10%-50%. The solvent composition of the energy storage battery electrolyte is improved, 1, 1, 2, 2-tetrafluoroethyl-2, 2, 2-trifluoroethyl ether is introduced into an ether organic solvent (namely tetrahydrofuran and 1, 3-dioxolame) to serve as a diluent, meanwhile, the volume percentage of the diluent is controlled, and the obtained electrolyte solvent formula can adapt to the wide temperature range of the full temperature interval of-130 DEG C to 60 DEG C, so that the energy storage battery electrolyte is suitable for being used as an energy storage battery electrolyte. And the problem of battery failure of the current energy storage battery under the extremely low-temperature and high-temperature conditions can be effectively solved.

Developer compositions are described based on blends of solvents, in which the developers are particularly effective for EUV patterning using organometallic based patterning compositions. Methods for use of these developing compositions are described. The blends of solvents can be selected based on Hansen solubility parameters. Generally, one solvent has low polarity as express by the sum of δP+δH, and a second solvent component of the developer has a higher value of δP+δH. Corresponding solvent compositions are described.

An electrolyte composition includes: a sulfonylimide compound represented by the following general formula (1) as an electrolyte salt; and an amidosulfuric acid component.LiN(X1SO2)(X2SO2)  (1)(where X1 and X2 are identical to or different from each other, and each represent a fluorine atom, an alkyl group with a carbon number of 1 to 6, or a fluoroalkyl group with a carbon number of 1 to 6).

SOLVENT COMPOSITIONS The present invention relates to a solvent composition for solvent-based paints or other coatings characterized in that it comprises a combination of dimethyl glutarate and at least one other compound selected from isobutyl acetate, ethyl lactate, dimethyl 2-methylglutarate, 2-methyltetrahydrofuran, ethyl acetate, cyclopentyl methyl ether, dithoxymethane, dimethyl carbonate, dimethyl succinate, benzyl alcohol, dimethyl adipate, and glyceryl triacetate. Fig. 1

A solvent composition for carbon capture is provided. According to a preferred embodiment, the solvent used for carbon capture comprises at least two of the following: diethylaminoethanol (DEAE), hexa

This invention discloses a method for preparing polyethylene cyclohexanedicarboxylate (PECCHD) from waste PET. Specifically, it relates to a solvent composition for dissolving PET, characterized in that the solvent composition comprises a first solvent and a second solvent; the first solvent is a haloalcohol solvent or a cyclic ether solvent; the second solvent is one or more of a cyclic ether solvent, a chain ether solvent, a nitrile solvent, a ketone solvent, or a haloalkane solvent; the chain ether solvent is a chain ether solvent with 2-4 oxygen atoms; the volume ratio of the first solvent to the second solvent is 1:(1-5); the first solvent and the second solvent are not the same solvent. This method has significant advantages in terms of raw material adaptability, reaction efficiency, and industrialization potential, achieving a highly efficient conversion from low-end waste PET to high-value-added PECHD.

The application relates to the technical field of photovoltaic cells, in particular to a solvent composition, a perovskite thin film and a preparation method thereof and a solar cell. The solvent composition comprises: a main solvent with a boiling point greater than 150 DEG C, the main solvent being selected from at least one of a perfluoroalkane compound and a perfluoro tertiary amine compound; an extraction solvent with a boiling point greater than 150 DEG C, the extraction solvent being selected from at least one of an aromatic ether compound, a halogenated aromatic hydrocarbon compound and an ester compound; and an adjusting solvent with a polarity between the polarities of the main solvent and the extraction solvent. The solvent composition provided by the application realizes mild and controllable extraction through the synergistic effect of the main solvent, the extraction solvent and the adjusting solvent, improves the crystallization quality of the thin film, the temperature of solvent bath annealing treatment can reach above the conversion temperature of the photoactive phase of the perovskite thin film, the phase transition is sufficient, and the photoelectric performance of the device is improved.

The invention relates to a solvent composition comprising at least one specific cycloalkanone-based solvent as a first solvent and at least one specific amide as a second solvent. The invention also relates to the use of the solvent composition for producing agrochemical formulations and to the agrochemical formulations themselves.

The invention relates to a solvent composition comprising at least one specific levulinic acid ester as a first solvent and at least one specific amide ester as a second solvent. The invention also relates to the use of the solvent composition for producing agrochemical formulations and to the agrochemical formulations themselves.

The present invention relates to a process for treating a polymeric material (PM) comprising a polyamide (PA66) (PA66) based polymer and at least one filler (F1), the process comprising providing a polymeric material (PM) comprising a polyamide (PA66) based polymer and at least one filler (F1) and a solvent composition (SC) comprising at least one solvent (S1) with a Hansen parameter H in the range of from 10 to 25 MPa0.5, preparing a mixture (M-0) from the polymeric material (PM) and the solvent composition (SC); subjecting mixture (M-0) to conditions for dissolving the polyamide (PA66) based polymer (D1) comprising a temperature T(D1) in the range of from 50 to 280°C and a time t(D1) sufficient to at least partially dissolve the polyamide (PA66) based polymer, preferably for a time of at least 5 minutes, in particular in the range of from 15 to 600 minutes, obtaining a mixture (M-1) comprising the solvent composition (SC), dissolved polyamide (PA66) based polymer, filler (F1), and insoluble residues; and separating the filler (F1) and insoluble residues from mixture (M-1) obtaining mixture (M-2) comprising the filler (F1) and insoluble residues, and mixture (M-3) comprising the solvent composition (SC) and dissolved polyamide (PA66) based polymer. The present invention also relates to the filler obtained in the process as well as a polyamide (PA66) based polymer obtained according to said process.

The invention relates to the technical field of photovoltaic cells, in particular to a solvent composition, a perovskite thin film, a preparation method of the perovskite thin film and a solar cell. The solvent composition comprises: a main solvent, the boiling point of which is greater than 150 DEG C, the main solvent being selected from at least one of a perfluoroalkane compound and a perfluorotertiary amine compound; the boiling point of the extracting solvent is higher than 150 DEG C, and the extracting solvent is selected from at least one of aromatic ether compounds, halogenated aromatic compounds and ester compounds; the polarity of the adjusting solvent is between the polarity of the main solvent and the polarity of the extracting solvent. According to the solvent composition provided by the invention, through the synergistic effect of the main body solvent, the extraction solvent and the adjusting solvent, mild and controllable extraction is realized, the crystallization quality of the film is improved, the temperature of the solvent bath annealing treatment can reach the conversion temperature of the photoactive phase of the perovskite film or above, the phase transformation is sufficient, and the photoelectric property of a device is further improved.

A method for monitoring the solvent composition in a liquid chromatography system, during gradient elution with a mobile phase in a fluid conduit, the mobile phase consisting essentially of a plurality of known solvents, said liquid chromatography system comprising a flow sensor, said method comprising passing the mobile phase by the flow sensor at a known flow rate; obtaining a measurement, via the flow sensor, of a transport property of the mobile phase; and converting the measurement into a solvent composition using a pre-established correlation.

A conductive paste is provided. The conductive paste includes a metal particulate material having a first metal powder having a having a D50 ranging from about 500 nm to about 1,500 nm, a second metal powder having a D50 ranging from about 10 nm to about 100 nm, and a third metal powder having a D50 ranging from about 3,000 nm to about 5,500 nm. The metal paste includes a solvent composition. The weight ratio of the third metal powder to the first metal powder is greater than 1. Electronic articles are also provided.

To provide a method and an apparatus for monitoring a solvent composition together with a mobile phase in a fluid conduit during gradient elution in a liquid chromatography system.SOLUTION: The mobile phase of the liquid chromatography system 6 is composed of a plurality of known solvents, and the liquid chromatography system includes a thermal flow sensor 20. The mobile phase is passed by the thermal flow sensor at a known flow rate, a measurement of a transport property of the mobile phase is obtained via the thermal flow sensor, and the measurement is converted to a solvent composition using a pre-established correlation.SELECTED DRAWING: Figure 1

The present disclosure relates to the technical field of detergents. Provided is a dry cleaning solvent composition. The dry cleaning solvent composition comprises a saturated cyclosiloxane, a polyol, water and an organophosphorus liquid flame retardant. In the present disclosure, by means of the synergetic combination of the saturated cyclosiloxane, the polyol, water and the organophosphorus liquid flame retardant, the obtained dry cleaning solvent composition has a good removal effect on water-soluble stains, oil-soluble stains and pigment stains, and also has good fire resistance and relatively high safety.

The invention discloses a method for preparing poly (cyclohexane dioctyl phthalate) glycol ester from waste PET (polyethylene terephthalate). In particular to a solvent composition for dissolving PET (polyethylene terephthalate), which is characterized by comprising a first solvent and a second solvent, the first solvent is a halogenated alcohol solvent or a cyclic ether solvent; the second solvent is one or more of a cyclic ether solvent, a chain ether solvent, a nitrile solvent, a ketone solvent or a haloalkane solvent; the chain ether solvent is a chain ether solvent with the oxygen atom number of 2 to 4; the volume ratio of the first solvent to the second solvent is 1: (1-5); the first solvent and the second solvent are not the same solvent. The method has remarkable advantages in the aspects of raw material adaptability, reaction efficiency and industrial potential, and efficient conversion from low-end waste PET to high-added-value PECHD is realized.

The invention discloses a platinum-loaded mesoporous carbon catalyst as well as a preparation method and application thereof, and belongs to the technical field of catalysts. According to the preparation method disclosed by the invention, the infiltration angle between the mesoporous carbon and water is adjusted by pre-treating the mesoporous carbon, so that the accurate regulation and control of the proportions of platinum nanoparticles inside and outside the pore channels of the mesoporous carbon carrier are realized by regulating and controlling the solvent composition of the platinum salt solution; and the platinum nanoparticles outside the pore channels can be coated with a complexing agent aqueous solution in a targeted manner, so that a miscellaneous carbon atom layer is formed on the surfaces of the platinum nanoparticles outside the pore channels. The miscellaneous carbon atom layer not only can reduce the activity attenuation of platinum nanoparticles outside the pore channels caused by sulfonate radical poisoning, but also can effectively inhibit the dissolution of the platinum nanoparticles in the oxygen reduction process, and finally, the stability of the catalyst is far superior to that of a commercial platinum-carbon catalyst.

The invention provides an extraction solvent composition for simultaneously extracting fat-soluble vitamins and water-soluble vitamins and application of the extraction solvent composition, and belongs to the technical field of vitamin extraction and detection. The extraction solvent composition comprises an acid and a polar aprotic solvent; the acid comprises medium-strong acid or strong acid. The extraction solvent composition comprises the acid and the polar aprotic solvent, so that the extraction solvent composition can extract fat-soluble vitamins and water-soluble vitamins at the same time, the pretreatment process of extraction and detection of vitamins in compound / composite vitamin products is simplified, the time is saved, the method is simple, and the efficiency is high.

The invention discloses a lithium battery fast charging electrolyte, which comprises an organic solvent, a lithium salt and an additive according to a mass ratio of (65-85): (10-25): (3-15), the organic solvent is composed of carboxylic ester, cyclic carbonate and chain carbonate in a mass ratio of (20-40): (10-20): (40-60); the lithium salt is a compound of lithium hexafluorophosphate (LiPF6) and lithium bis (oxalate) borate (LiBOB) in a mass ratio of (5-8): (1-3); the additive is one or two of 1, 3-propanedithiol, 2, 3-butanedithiol and 1, 4-butanedithiol, the addition amount of the additive is 0.5%-3% of the total mass of the electrolyte, and the thiol compound can capture high-temperature free radicals and inhibit solvent decomposition. According to the invention, the solvent composition of the fast-charging electrolyte is mainly protected, and the fast-charging and fast-discharging performance and the high-temperature stability are synergistically improved through the specific ratio of the lithium salt compound (LiPF6 and LiBOB) and the additive combination (thiol compounds and fluoro carboxylic ester derivatives) and all the components.

Provided is a solvent composition for an electrode-forming paste, the solvent composition having excellent crack resistance during manufacture of an electrode and being capable of reducing the solvent residue in the electrode.　The solvent composition for an electrode-forming paste comprises a solvent (A) having a boiling point of 180°C to 240°C, and has a Hansen solubility parameter hydrogen bond term δH of 4-11 (J / cm3) 0.5. The solvent (A) preferably has a solubility in water of 5 g / 100 g or more. The solvent (A) preferably comprises an ether skeleton and / or an ester skeleton.

This disclosure describes a mixer 50 for a liquid chromatography system. The mixer includes a flow distributor 52, a mixing disk 54, and a flow collector 56. The mixer includes an inlet face, an outlet face, and a plurality of channels, each channel having an inlet end at the inlet face and an outlet end at the outlet face. The channels have anisotropic flow direction between the inlet and outlet faces. The component solvent flow received at the flow distributor 52 is distributed on the inlet face of the mixing disk 54, and the flow collector 56 collects the distributed solvent composition flow after passing through the mixing disk 54. The mixing disk 54 can include a dispersive medium having a random porous structure. The residence time distribution of the mixer can depend on the structure of the channels between the inlet and outlet faces of the mixing disk.

The invention discloses a preparation method of an ITO transparent conductive film, and belongs to the technical field of ITO film preparation. The preparation method comprises the following steps: mixing ITO nano powder, an organic solvent and a dispersing agent, and performing ball-milling dispersion to obtain ITO slurry; 2) casting the ITO slurry onto a substrate to form an ITO wet film; carrying out gradient drying on the ITO wet film to obtain a precursor film; and carrying out first-stage annealing on the precursor thin film in a nitrogen atmosphere, and then carrying out second-stage annealing in an oxygen-containing atmosphere, so as to obtain the ITO transparent conductive thin film after annealing. According to the method, the ITO slurry solvent composition is optimized, and the dispersing agent and the ball-milling dispersing process are combined, so that agglomeration of ITO nano particles is effectively restrained, and preparation of the low-surface-roughness ITO thin film is achieved.

Cleaning solvent blends comprising an HCFO such as l-chloro-2,3,3,- trifluoropropene; trans-dichloroethylene; and a high boiling HEE such as HFE-7300; have utility as a non-flammable, low-global warming potential, azeotrope-like cleaning solvent compositions. Additional solvent ingredients may include surfactants and co-solvents. A method for cleaning articles of soiling substances comprises contacting the articles with the solvent composition by any suitable means such as a spray delivered by a propellant gas, or by contact with liquid and / or vapor solvent compositions, as in a conventional vapor degreaser apparatus, and removing the composition from the articles.

The battery includes a positive electrode current collector, a positive electrode, an electrolyte comprising a solvent, the solvent comprising at least one of a fluorinated organosilicon and lithium metal, and a metal current collector comprising lithium plated thereon, and a layer coated on the lithium-plated metal current collector, the layer comprising at least nitrogen and fluorine.

A battery includes a positive current collector; a positive electrode; an electrolyte; wherein the electrolyte comprises a solvent, wherein the solvent comprises at least one of fluorinated organosilicon and lithium metal; and a metal current collector, wherein the metal current collector comprises a lithium plated on the metal current collector, wherein a layer is coated over a lithium plated metal current collector, wherein the layer comprises at least nitrogen and fluorine.

A nonflammable solvent composition comprises, based on the total weight of trans-1,2-dichloroethylene, (E)-1-chloro-2,3,3-trifluoroprop-1-ene, and (Z)-1-chloro-2,3,3-trifluoroprop-1-ene: about 80 wt. % to about 99.99 wt. % of trans-1,2-dichloroethylene; and about 0.01 wt. % to about 20 wt. % of at least one of (E)-1-chloro-2,3,3-trifluoroprop-1-ene or (Z)-1-chloro-2,3,3-trifluoroprop-1-ene; wherein the nonflammable solvent composition has no fire point over a temperature range of 10° C. to the boiling point of the solvent composition, measured according to any one or more of ASTM D92-18, ASTM D1310-14, or ASTM D56-22. Methods for preparing a nonflammable solvent composition from trans-1,2-dichloroethylene and for increasing the fire point of trans-1,2-dichloroethylene comprises mixing the trans-1,2-dichloroethylene with about 0.01 wt. % to about 20 wt. % of at least one of (E)-1-chloro-2,3,3-trifluoroprop-1-ene or (Z)-1-chloro-2,3,3-trifluoroprop-1-ene to form a nonflammable solvent composition having no fire point over a temperature range of 10° C. to the boiling point of the solvent composition.

This invention discloses an aluminum-containing heavy water-based electrolyte, its preparation method, and its applications. The electrolyte comprises a solvent and a solute. The solvent includes heavy water, a deuterated solvent, and a low-barrier hydrogen bond reconstructing agent. The solute comprises a main aluminum salt and an auxiliary monovalent metal salt. This electrolyte can construct low-barrier hydrogen bonds in solution by controlling the solvent composition, significantly reducing the activity of water in the solution, improving the electrochemical stability of the solution, and suppressing side reactions. Simultaneously, it improves the electrochemical reaction behavior of aluminum in the solution and at the electrolyte / electrode interface, which is beneficial for improving the electrochemical deposition efficiency of aluminum in aqueous solution.

Thermal treatment of purified 2,5-furandicarboxylic acid (FDCA) for producing a carboxylic acid composition, the process comprising the steps of providing or producing a thermal treatment composition comprising a purified carboxylic acid composition and a water containing treatment solvent composition; subjecting the thermal treatment composition to an elevated temperature, wherein the FDCA is partially dissolved, and cooling the treated composition and separating at least a portion of the FDCA from the treated composition to obtain a carboxylic acid composition.

The application discloses an electrolyte for a secondary lithium battery, which comprises a first solvent, a second solvent, a first lithium salt and optionally a second lithium salt. By selecting specific electrolyte solute and solvent composition, the application can improve the interaction between the electrolyte and the lithium metal negative electrode, reduce the formation of lithium dendrites and the electrochemical reaction inside the battery, improve the ion conduction performance of the battery, improve the cycle life of the battery, and is beneficial to the commercialization of the lithium metal solid-state battery.