22 results about "Thionyl" patented technology

The invention discloses preparation equipment and a preparation process for preparing high-purity electronic-grade thionyl fluoride, and the preparation equipment comprises a mixer, the mixer is communicated with a first preheating device, the first preheating device is communicated with a first rectifying tower, the top of the rectifying tower is connected with a condenser, the condenser is communicated with a crude product tank, the crude product tank is communicated with a second preheating device, and the second preheating device is communicated with a second rectifying tower. The second preheating device is communicated with a second rectifying tower, the second rectifying tower is communicated with a third rectifying tower, the third rectifying tower is connected to a storage tank, the storage tank is connected with a vaporization device, the vaporization device is pressurized and then stored in a high-pressure buffer tank, the high-pressure buffer tank is connected with at least three adsorption towers, and the adsorption tower at the rearmost end is connected with a high-pressure product tank. According to the invention, the purity of the finished product is improved, and all raw material components are fully utilized.

The invention relates to the technical field of fine separation in fluorine chemical industry, in particular to a method and a system for purifying thionyl fluoride by combining multi-stage rectification and adsorption. The method comprises the following steps: carrying out heat exchange on raw material gas, feeding the raw material gas into a first-stage rectifying tower, carrying out primary separation, removing low-boiling impurities, feeding the raw material gas into a second-stage rectifying tower, carrying out further purification, condensing the rectified high-purity gas into a liquid crude product, and carrying out deep impurity removal through a mixed adsorbent fixed bed to finally obtain a thionyl fluoride product with the purity higher than 99.999%. The system comprises a raw material gas feeding unit, a two-stage rectifying tower, a condenser, an adsorption device and a product storage tank, modules are sequentially connected, and the system is provided with a temperature and pressure control and anti-corrosion structure and is suitable for industrial purification production of continuous high-purity thionyl fluoride.

The invention discloses a silicon spiro compound as well as a preparation method and application thereof. The silicon spiro compound has the following structural formula, the X group and the Y group are respectively and independently selected from any one of an oxygen atom, a carbonyl group, a sulfinyl group, a sulfuryl group, a substituted or unsubstituted C1-C6 alkylene group, a substituted or unsubstituted C2-C10 alkenyl group, a substituted or unsubstituted C2-C10 alkynyl group, a substituted or unsubstituted C2-C10 cyano group and an aryl group; the silicon spiro compound provided by the invention is suitable for being used as an additive of a lithium ion battery electrolyte, the stability and cycle life of a lithium ion battery can be obviously improved, the reaction condition is mild, and the product purity and yield are high.

The invention discloses a preheating device for preparing electronic-grade thionyl fluoride, comprising: a preheating tank body, a crude gas inlet, a crude gas outlet, a serpentine coil, an inflow pipe, an outflow pipe, and an internal circulation contact type structure, wherein the serpentine coil comprises an upper through-hole connected to the crude gas inlet, the upper through-hole connected to a transverse transmission part, the end of the transverse transmission part is connected to a bending part, the transverse transmission parts and the bending parts are alternately arranged, and the transverse transmission part at the lowest end is connected to a lower through-hole communicated with the crude gas outlet, the internal circulation contact type structure comprises an inner contact piece arranged on the side of the bending part, a hollow piece is arranged on the outer side of the inner contact piece, and an outer contact piece is connected to the side of the inner contact piece close to the transverse transmission part; and a lower isolation structure comprises an inner heat cover arranged at the lower end of the lower through-hole, an outer isolation cover is arranged on the outer side of the inner heat cover, and a circulation rack is arranged on the outer side of the outer isolation cover. The present invention can completely complete preheating in a preheater with a shorter path.

This invention generally relates to the field of therapeutic compounds. More specifically, this invention relates to 2-amino- N -(oxo-aryl-λ) 6 (-Thionyl)acetamide compounds (referred to herein as ANOSA compounds), said compounds In particular Inhibition (e.g., selective inhibition) of bacterial aminoacyl-tRNA synthetases (aaRS) (e.g., bacterial leucyl-tRNA synthetase, LeuRS). The present invention also relates to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions in vitro and in vivo to inhibit (e.g., selectively inhibit) bacterial aminoacyl-tRNA synthetases; to treat conditions improved by inhibition (e.g., selective inhibition) of bacterial aminoacyl-tRNA synthetases; to treat bacterial infections; and so on.

The invention discloses a mixer for preparing high-purity electronic-grade thionyl fluoride, comprising a mixing tube, an anhydrous hydrogen fluoride feeding end, a thionyl chloride feeding end, and a discharging end, and also comprising: a middle material dividing structure, the mixing tube comprising a front section branch pipe, a rear section segment, and a cross-connecting plate, the middle material dividing structure comprising a first sealing crank sleeve, the lower end of the cross-connecting plate being connected to a second sealing crank sleeve, a driving member being provided on a side of the first sealing crank sleeve away from the cross-connecting plate, a dynamic material dividing member being connected to an output end of the driving member and penetrating the cross-connecting plate and being located in the first sealing crank sleeve and the second sealing crank sleeve; an axial material dividing structure, the front section branch pipe and the rear section segment are both provided with an installation groove on one side close to the cross-connecting plate, a static material dividing member being movably provided in the installation groove, the first sealing crank sleeve and the second sealing crank sleeve being connected to the rear side of the cross-connecting plate and respectively abutting against the two static material dividing members. The invention can facilitate the regeneration of the coating and better facilitate the maintenance and use of the mixer.

The invention discloses a mixer for preparing high-purity electronic grade thionyl fluoride, which comprises a mixing pipe, an anhydrous hydrogen fluoride feed end, a thionyl chloride feed end and a discharge end, and also comprises a middle material distribution structure, the mixing pipe comprises a front branch pipe, a rear branch pipe and a transverse connecting plate, and the middle material distribution structure comprises a first sealing crank sleeve, a second sealing crank sleeve and a third sealing crank sleeve; the lower end of the transverse connecting plate is connected with a second sealing crank sleeve, a driving piece is arranged on the side, away from the transverse connecting plate, of the first sealing crank sleeve, and the output end of the driving piece is connected with a movable material distributing piece which penetrates through the transverse connecting plate and is located in the first sealing crank sleeve and the second sealing crank sleeve; mounting grooves are formed in the sides, close to the transverse connecting plate, of the axial material distribution structure, the front-section branch pipe and the rear-section subsection, a static material distribution piece is movably arranged in each mounting groove, and a first sealing crank sleeve and a second sealing crank sleeve are connected to the two sides of the rear portion of the transverse connecting plate and abut against the two static material distribution pieces correspondingly. And the mixer is better convenient to maintain and use.

The invention discloses a vaporizing device for preparing electronic grade thionyl fluoride, which comprises a vaporizing tank, a thionyl fluoride liquid inlet, a thionyl fluoride gas outlet and a plurality of steam pipes, and also comprises an isolation material distribution structure, the isolation material distribution structure comprises a middle mounting plate, the lower end of the middle mounting plate is connected with a plurality of material distribution pipes, the outer sides of the middle parts of the material distribution pipes are provided with lower material distribution assemblies, and the lower material distribution assemblies are connected with the steam pipes; the bottom of the material distribution pipe is connected to a lower suction pipe; the lower suction pipe extends into the thionyl fluoride liquid at the bottom of the vaporization tank; the segmented vaporization structure comprises a plurality of containing cavities formed in the middle mounting plate, inlet holes in the bottoms of the interiors of the containing cavities are communicated with the material distribution pipes, the steam pipes are inserted into the upper portions of the containing cavities, an inner inclined hole is formed in the middle of each steam pipe, each inner inclined hole inclines outwards to form an outer guide plate, and an inner guide assembly is arranged at the position, corresponding to the corresponding inner inclined hole, of the inner side of each outer guide plate; according to the thionyl fluoride vaporization device, liquid generated during vaporization can be prevented from converging into thionyl fluoride, and the influence on the purity of thionyl fluoride is avoided.

The invention discloses a preparation device for preparing high-purity electronic-grade thionyl fluoride and a preparation process thereof. The device comprises: a mixer, the mixer is communicated with a first preheating device, the first preheating device is communicated with a first distillation tower, the top of the distillation tower is connected with a condenser, the condenser is communicated with a crude product tank, the crude product tank is communicated with a second preheating device, the second preheating device is communicated with a second distillation tower, the second distillation tower is communicated with a third distillation tower, the third distillation tower is connected to a storage tank, the storage tank is connected to a vaporization device, the vaporization device is pressurized and stored in a high-pressure buffer tank, the high-pressure buffer tank is connected to at least three adsorption towers, and the adsorption tower at the rear end is connected to a high-pressure product tank. The invention improves the purity of the finished product while fully utilizing all raw material components.

The invention relates to the field of fluorine-containing chemical industry, in particular to a method and a system for synthesizing thionyl fluoride by a one-step method based on reactive distillation. The method comprises the following steps: proportioning and mixing raw material gas, adjusting the temperature of the mixed gas, introducing the raw material gas, setting a tower body structure, carrying out a gas-phase synthesis process in a reaction region, carrying out tower top condensation and separation, carrying out buffer collection on a liquid product, treating a byproduct hydrogen chloride gas, and transferring and storing the product. The matching system comprises a raw material treatment unit, a reactive distillation tower body, a product collection module and a byproduct gas treatment device, all the units are clear in structure and stable in connection, and the capacity of synthesizing thionyl fluoride under the continuous operation condition is achieved. The reaction and separation integrated design is adopted, so that the method is suitable for efficient preparation of thionyl fluoride.

The invention discloses a vaporization device for preparing electronic-grade thionyl fluoride, comprising: a vaporization tank, a thionyl fluoride liquid inlet, a thionyl fluoride gas outlet, and a plurality of steam pipes; the device also comprises: an isolation and distribution structure, comprising a middle mounting plate, wherein the lower end of the middle mounting plate is connected to the plurality of distribution pipes, a lower distribution assembly is provided on the outer side of the middle of the distribution pipe, the bottom of the distribution pipe is connected to a lower extraction pipe, and the lower extraction pipe extends into the thionyl fluoride liquid at the bottom of the vaporization tank; a segmented vaporization structure, comprising a plurality of accommodating chambers arranged on the middle mounting plate, an inlet hole at the bottom of the accommodating chamber communicates with the distribution pipe, a steam pipe is plugged above the accommodating chamber, an inner inclined hole is provided in the middle of the steam pipe, the inner inclined hole is inclined outward to have an outer guide plate, an inner guide assembly is provided at a position on the inner side of the outer guide plate corresponding to the inner inclined hole, and an outer guide assembly is provided on the outer side of the outer guide plate. The device can prevent liquid generated during vaporization from flowing into the thionyl fluoride, thereby preventing the purity of the thionyl fluoride from being affected.

This invention relates to the field of vanadium redox flow battery technology, specifically to an electrolyte for vanadium redox flow batteries containing multifunctional organic additives, its preparation, and its application. The electrolyte comprises sulfate ions, hydrogen ions, vanadium ions, and organic additives, wherein the organic additives are compounds containing thionyl halides in their molecular structure. Compounds containing thionyl halides possess strong coordination capabilities and amphiphilic molecular structures, effectively disrupting the strong hydrogen bond network formed between vanadium ions and water molecules, and altering the structure of the first coordination layer of vanadium ions, thereby reducing the internal resistance of the solution, decreasing viscosity, and improving conductivity.

The invention discloses a preheating device for preparing electronic grade thionyl fluoride, which comprises a preheating tank body, a crude gas inlet, a crude gas outlet, a snakelike coil pipe, an inflow pipe and an outflow pipe, and further comprises an internal circulation contact type structure, the snakelike coil pipe comprises an upper communicating part connected with the crude gas inlet, the upper communicating part is connected with a transverse transmission part, the tail end of the transverse transmission part is connected with a bending part, and the bending part is connected with the inner circulation contact type structure; the transverse transmission parts and the bending parts are alternately arranged, the transverse transmission part at the lowest end is connected to a lower through part communicated with the crude gas outlet, the internal circulation contact type structure comprises an internal contact piece arranged in the lateral direction of the bending parts, an empty drum piece is arranged on the outer side of the internal contact piece, and one side, close to the transverse transmission parts, of the internal contact piece is connected with an external contact piece; and the lower isolation structure comprises an inner heat cover arranged at the lower end of the lower through part, an outer isolation cover is arranged on the outer side of the inner heat cover, and a circulation frame is arranged on the outer side of the outer isolation cover.

The present application relates to fluorinated fine separation technical field, specifically to a kind of multistage rectification and adsorption combined purification of thionyl fluoride method and system.The method includes: by raw gas heat exchange into first rectification column and is preliminarily separated, after eliminating low-boiling impurities, it is sent into second rectification column and is further purified, after rectification, high-purity gas is converted into liquid crude product by condensation, then it is carried out by mixed adsorbent fixed bed and is deeply removed impurity, and finally the purity of thionyl fluoride product is higher than 99.999%.The system includes raw gas feeding unit, two-stage rectification column, condenser, adsorption device and product tank, module is sequentially connected and has temperature and pressure control and anticorrosion structure, suitable for continuous high-purity thionyl fluoride industrialized purification production.

The invention belongs to a tail gas resource utilization technology, and particularly provides a method and a system for producing hydrochloric acid from thionyl fluoride synthesis tail gas. The method comprises the following steps: S1, tail gas extraction: extracting tail gas generated in a thionyl fluoride synthesis reaction process, wherein the tail gas contains hydrogen chloride, hydrogen fluoride, unreacted chlorinated raw materials and intermediate byproducts; s2, condensation treatment: negative pressure is controlled, the tail gas is guided into a condensation unit for cooling, and the cooling temperature is controlled within the range of 0-10 DEG C for removing high-boiling-point impurities; s3, rectification separation: introducing the condensed tail gas into a rectification tower, and separating hydrogen fluoride gas from hydrogen chloride gas; and S4, waste gas absorption and hydrogen fluoride reutilization: introducing the hydrogen chloride gas into an absorption tower, fully absorbing hydrogen chloride in the tail gas to generate hydrochloric acid, and returning the separated hydrogen fluoride to a thionyl fluoride synthesis section for reutilization.

The invention discloses a high-purity electronic-grade thionyl fluoride purification system, comprising: a rectification, a condenser, a reboiler, an air inlet end, and also comprising: a filler mounting structure, wherein a top tray is provided on the inner side of a rectification tower, the filler mounting structure comprises a middle fitting locked on the top tray, a plurality of circular mounting cylinders are sleeved on the middle fitting, fillers are provided on the inner sides of the circular mounting cylinders, a recessed area is provided on the inner sides of the circular mounting cylinders, the recessed area and the inner wall of the rectification tower form a closed space, a clamping piece is provided on the inner side of the recessed area, and the clamping piece abuts against the inner wall of the rectification tower; a pressurized closed structure comprises an outward expansion rod movably mounted on the inner wall of the middle fitting, an outward push piece is movably provided on the inner side of the clamping piece, the outward push piece is movably matched with the middle fitting piece, and a sealing piece is connected to the upper end of the clamping piece. The invention enables thionyl fluoride to stably reach the effect of electronic-grade thionyl fluoride after purification.

The invention discloses a high-purity electronic grade thionyl fluoride purification system which comprises a rectifying tower, a condenser, a reboiler and a gas inlet end and further comprises a filler mounting structure, a top tray is arranged on the inner side of the rectifying tower, the filler mounting structure comprises a middle matching part locked on the top tray, the middle matching part is sleeved with a plurality of circular mounting cylinders, and the circular mounting cylinders are arranged on the top tray. A filler is arranged on the inner side of the circular mounting cylinder, a concave area is formed in the inner side of the circular mounting cylinder, a closed space is formed by the concave area and the inner wall of the rectifying tower, and a clamping piece is arranged on the inner side of the concave area and abuts against the inner wall of the rectifying tower; the pressurizing sealing structure comprises an external expansion rod movably installed on the inner wall of the middle matching piece, an external pushing piece is movably arranged on the inner side of the clamping piece and movably matched with the middle matching piece, and the upper end of the clamping piece is connected with a sealing piece. According to the electronic grade thionyl fluoride purifying device, the effect of electronic grade thionyl fluoride can be stably achieved after thionyl fluoride is purified.

The invention belongs to a tail gas resource utilization technology, and particularly provides a method and a system for comprehensively reutilizing thionyl fluoride synthesis waste gas. The method comprises the following steps: S1, tail gas extraction: extracting tail gas generated in a thionyl fluoride synthesis reaction process, wherein the tail gas contains hydrogen chloride, hydrogen fluoride, unreacted chlorinated raw materials and intermediate byproducts; s2, condensation treatment: negative pressure is controlled, the tail gas is guided into a condensation unit for cooling, and the cooling temperature is controlled within the range of 0-10 DEG C for removing high-boiling-point impurities; s3, waste gas absorption: introducing the condensed tail gas into an absorption tower, and fully absorbing hydrogen chloride and hydrogen fluoride in the tail gas to form mixed acid; s4, chemical precipitation: adding lime milk into the mixed acid to convert hydrogen fluoride into insoluble calcium fluoride precipitate, converting hydrogen chloride into calcium chloride, and then filtering to obtain a calcium fluoride filter cake and a calcium chloride solution; s5, concentrating and crystallizing: concentrating and crystallizing the calcium chloride solution to obtain calcium chloride crystals.

The present invention relates to the field of thin film technology, and discloses an antibacterial bio-based composite thin film and a preparation method thereof. The present invention uses formaldehyde, 3-aminopropyltriethoxysilane, and p-hydroxyphenylacetic acid as raw materials, and through the Mannich reaction, intermediate 1 is obtained. Intermediate 1 is subjected to an acyl chlorination reaction with thionyl dichloride to obtain intermediate 2, which is then subjected to dehydration condensation with nano-titanium dioxide to obtain intermediate 3. Under the action of pyridine, intermediate 3 and tea polyphenols are subjected to an esterification reaction to obtain nano-titanium dioxide modified tea polyphenols. Finally, polylactic acid and nano-titanium dioxide modified tea polyphenols are stirred and dispersed, and cast and scraped to obtain an antibacterial bio-based composite thin film. The composite thin film prepared by the present invention has good antibacterial properties, mechanical properties, and the characteristics of being green and environmentally friendly.

The invention belongs to the technical field of chemical engineering, and particularly relates to a method and a system for continuously preparing and filling electronic-grade thionyl fluoride. The method comprises the steps of raw material mixing and preheating, reaction synthesis and crude product separation, light component removal treatment, rectification and purification, vaporization and pressurization, impurity adsorption, metering and filling and the like. Impurities such as hydrogen chloride, hydrogen fluoride and the like are removed in a mode of combining reactive distillation, two-stage distillation separation and three-stage adsorption, and finally high-purity thionyl fluoride gas is obtained and automatically filled into a steel cylinder. The system comprises a mixer, a preheater, a reaction tower, a condenser, a rectifying tower, a vaporizer, an adsorption tower, a filling device and other modules, realizes full-flow continuous operation from raw materials to products, and is suitable for high-purity preparation requirements of the electronic gas industry.

This invention relates to the field of organic electroluminescence technology, specifically to a phosphine-containing TADF compound, its preparation method, and its applications. The general formula of the phosphine-containing TADF compound is: [Formula omitted for brevity]. Ar is any one of phenyl, deuterated phenyl, biphenyl, partially deuterated biphenyl, terphenyl, partially deuterated terphenyl, naphthyl, 9-phenylanthrayl, pyrene, phenanthryl, thionyl, benzanthracene, dibenzofuranyl, dibenzothiophene, 9,9-dimethylfluorenyl, 9,9-diphenylfluorenyl, 9-phenyldibenzocarbazoyl, and partially deuterated 9-phenyldibenzocarbazoyl. The phosphine-containing TADF compound exhibits high molecular rigidity, a high glass transition temperature, and good thermal stability. Furthermore, this type of compound has high fluorescence quantum efficiency, significantly improving the luminous efficiency of devices. Organic electroluminescent elements using the compound of this invention as the main luminescent material possess higher luminous efficiency and a longer lifespan.

The invention provides a modified molecular sieve for efficient adsorption of electronic grade thionyl fluoride, an adsorption system and application. The efficient adsorption system for the electronic-grade thionyl fluoride comprises adsorption towers which are arranged in series, wherein the upper layer in each adsorption tower is filled with silica gel, the middle layer in each adsorption tower is filled with a mixture of a modified molecular sieve / silica gel, the lower layer in each adsorption tower is filled with a modified molecular sieve, and the modified molecular sieve is formed by passivating silicon hydroxyl on the surface of the molecular sieve at a high temperature in an NF3 atmosphere so as to reduce irreversible adsorption loss of SOF2. According to the modified molecular sieve for high-efficiency adsorption of electronic grade thionyl fluoride, the adsorption system and the application, NF3 atmosphere and part of silicon hydroxyl (Si-OH) on the surface of the molecular sieve are subjected to passivation reaction at high temperature to form (Si-O-F), so that active sites on the surface are reduced, irreversible adsorption loss of the silicon hydroxyl and SOF2 is prevented, and the adsorption efficiency of the electronic grade thionyl fluoride is improved. And further, the yield of SOF2 can be increased by 3-5%.