71 results about "Solvent vapor" patented technology

The invention provides an impurity deep removal and purification device in ES fiber solvent recovery. Relates to the technical field of electrostatic spinning process and solvent recovery, and comprises a pre-separation module used for removing fiber residues and solid particles larger than 5 microns in solvent-enriched gas; the multi-stage deep condensation module comprises two stages of condensers, and the two stages of condensers condense the solvent steam according to the gradually decreased temperature and intercept micro-droplet impurities; and the composite adsorption module is used for adsorbing residual organic trace impurities and removing water. The impurity deep removal and purification device in ES fiber solvent recovery has the advantages of being low in energy consumption, easy and convenient to maintain, stable in operation and capable of being continuously online for 72 h or above without shutdown, the solvent recovery rate is remarkably increased, the operation cost is reduced, and the potential risk of organic vapor emission to the environment and operation safety is effectively avoided.

The application discloses a solvent separation and recovery process of a vinyl lubricating oil base oil, and comprises the following steps: step S1, obtaining organic solvent vapor and crude oil by removing the reaction liquid from a dissolving unit; step S2, obtaining refined solvent by refining the organic solvent vapor in a solvent rectification unit; step S3, obtaining tail gas condensate and tail gas non-condensable gas by condensing tail gas containing solvent vapor in a tail gas condensation recovery unit; and step S4, passing the tail gas non-condensable gas through a tail gas adsorption unit. The application mainly solves the problems of poor separation effect of reaction products, low product quality and inability to reach an industrial scale in the prior art.

The utility model discloses a kind of pre-vapor degreasing pipeline systems. A kind of pre-vapor degreasing pipeline system, including a working cavity, including vacuum pipeline, first pneumatic valve, drying condenser, second pneumatic valve and vacuum pump group are successively installed on vacuum pipeline from immediately adjacent working cavity side;It further includes the distillation tank for heating to produce solvent vapor, heater is installed at the bottom of distillation tank, distillation tank is docked working cavity by steam delivery pipeline, third pneumatic butterfly valve is installed on steam delivery pipeline;The bottom of working cavity is connected by a recovery pipeline with distillation tank, fourth pneumatic butterfly valve, circulating pump and fifth pneumatic valve are successively installed on recovery pipeline from working cavity to distillation tank.The utility model passes through pre-vapor degreasing pipeline system, high-temperature solvent vapor is sprayed to the surface of workpiece in working cavity, and then improve the cleaning effect to workpiece.The grease on workpiece after high-temperature solvent vapor treatment is stored in distillation tank by recovery pipeline.

A substrate treating apparatus includes a process tank for storing a treatment liquid, a chamber for surrounding the process tank, a solvent vapor nozzle for supplying solvent vapor into the chamber, a cleaning liquid nozzle for supplying a cleaning liquid, and a controller. The controller causes immersion treatment, where a substrate is immersed in the treatment liquid stored in the process tank, to be performed for a preset period of time, and causes dry treatment, where the substrate processed with the treatment liquid and taken out of the process tank is dried with the solvent vapor supplied from the solvent vapor nozzle, to be performed. The controller causes the cleaning liquid nozzle to supply the cleaning liquid into the chamber and causes the process tank to be immersed in the cleaning liquid stored in the chamber, whereby the chamber cleaning treatment, where the chamber including an outer wall of the process tank is cleaned, is performed.

The present application relates to a kind of extraction method and extraction concentration equipment of spearmint flavor, the method uses liquid nitrogen brittle treatment, low-temperature ultrasonic extraction, two-stage ultrafiltration purification, then liquid-liquid extraction by ethyl acetate, the organic phase is concentrated in vacuum;Concentrated solvent vapor generated is introduced into microbubble in separation tank two, and the water phase residual flavor component, concentrated volatile flavor component and ethyl acetate are recovered synchronously.The equipment includes separation tank one, separation tank two, concentration tank and vacuum pump, micro gas plate, temperature control module and the like, and the extraction agent and flavor recovery rate are improved by pressure boosting and low-temperature control.The present application can efficiently recover flavor component, improve the total yield of aroma, reduce solvent loss and flavor loss.

The present application relates to hydrogen fuel cell preparation equipment technical field, specifically relates to a kind of continuous preparation equipment of hydrogen fuel cell gas diffusion layer. Including unwinding roller and winding roller, coating area, drying zone and sintering zone are provided between the unwinding roller and winding roller, the coating area is equipped with coating unit, including coating die and air jet die, the air jet die is located downstream of the coating die along the substrate conveying direction, negative pressure suction groove is arranged between the coating die and the air jet die, the coating die and air jet die are respectively connected with pitch angle adjusting mechanism, the both sides of the coating die and the air jet die are equipped with lateral baffle along substrate width direction.This application constructs efficient and cooperative coating and flattening system by non-contact coating die, reverse flattening air jet die and intermediate negative pressure suction groove, removes excess air flow and solvent vapor in real time, and effectively inhibits slurry and air flow transverse diffusion through lateral baffle on both sides of coating.

The invention discloses paint surface drying equipment, which belongs to the field of paint surface drying equipment and is characterized in that a basic platform is constructed by an equipment bracket and a conveying belt, a drying area is isolated by a sealing cover, and accurate positioning and partitioned heating of a workpiece are realized by a built-in positioning cover structure. The drying spray pipe structure realizes'air supply-air exhaust 'alternate dynamic airflow circulation through a plurality of groups of independent pipelines, and solvent steam and moisture volatilized by a paint film are effectively taken away by combining the two-way airflow switching design of a heat preservation air pipe and a branch pipeline and the airflow guiding design of a horn-shaped air outlet, so that water vapor accumulation is avoided; and the arc dome of the positioning cover is integrated with a temperature-adjustable heating lamp tube, and is matched with a heat preservation layer and an intelligent temperature control system, so that the surface temperature of the paint film is accurately matched and uniformly heated. According to the equipment, the defects of paint film water spots, sagging and surface and interior dryness are thoroughly eliminated through a sectional type dynamic moisture removal and precise temperature control technical system, and the hardness and weather resistance of a paint film are improved.

The application belongs to the technical field of spinning dope production, and discloses a polymerization liquid monomer removal system and a polymerization liquid monomer removal method. The polymerization liquid monomer removal system comprises a monomer removal tower, a reboiler, and a discharge port. The polymerization liquid enters the top of the monomer removal tower. The reboiler is in communication with the lower region of the monomer removal tower and transports solvent vapor into the monomer removal tower. The solvent vapor contacts the polymerization liquid to separate monomers in the polymerization liquid. The bottom of the reboiler has a discharge port. During the monomer removal process, liquid solvent continuously enters the reboiler, and the material at the bottom of the reboiler is continuously discharged through the discharge port. In the application, the material at the bottom of the reboiler is continuously discharged through the discharge port during the monomer removal process, which can timely discharge the precipitated impurities, ensure the purity of the solvent vapor, and further avoid the impurities entering the monomer removal tower with the vapor to affect the quality of the polymerization liquid.

The present invention belongs to the technical field of thin film drying equipment and relates to a thin film drying device, a thin film drying method, and a perovskite solar cell assembly. The thin film drying device includes: a blowing component that provides a first airflow in a first direction toward the liquid film to be dried, the air outlet direction of the blowing component and the plane where the liquid film to be dried are sandwiched to form an acute angle area; and an air supply device that provides solvent vapor; wherein, when the blowing component provides the first airflow in the first direction toward the liquid film to be dried, a drainage area is formed in the acute angle area, and the solvent vapor is covered by the drainage airflow in the drainage area to the surface of the liquid film to be dried. The thin film drying device and thin film drying method of the present invention can significantly accelerate the drying of the liquid film to be dried, and can also improve the crystallization quality during the drying process, taking into account the consistency of the crystal orientation of the film, thereby alleviating interface defects between the film and other materials.

The utility model provides a vacuum drying oven capable of recovering a solvent, which is used for effectively recovering the evaporated solvent in the vacuum drying oven and comprises a vacuum drying oven body, a vacuum box cover, a vacuum box cover and a vacuum box cover, an air inlet and an air outlet of the condenser are formed in the lower end and the upper end respectively, and the air inlet is connected with the extraction opening of the vacuum drying box body; an air inlet of the vacuum pump is connected with an air outlet of the condenser; according to the vacuum drying box, the solvent outlet is formed in the bottom of the vacuum drying box body, so that the situation that solvent steam flows back to the bottom of the box body to be accumulated in the rising process after being evaporated out of materials can be avoided; the solvent evaporated in the vacuum drying box body is effectively recycled, waste of the solvent and corrosion of equipment are avoided, and the production cost is reduced.

The invention relates to the technical field of chemistry and chemical engineering experimental equipment, in particular to a high-speed distillation instrument which comprises a solvent evaporation system, a solvent condensation system and a controller which are associated with one another. The solvent evaporation system comprises a hot bath pool, an evaporation bottle, a two-way glass shaft, a locking mechanism, a driving motor and a steam guide bottle, and is used for evaporation of a volatile solvent and steam guide; the solvent condensing system comprises a bathing pool, a double-arm condenser, a cold liquid pump, an air pump and a collecting bottle and is used for condensing and recycling solvent steam; the controller is used for controlling the running states of the solvent evaporation system and the solvent condensation system, so that the volatile solvent is efficiently distilled and recycled in a closed environment in the high-speed distillation instrument. The high-speed distillation instrument provided by the invention has the beneficial effects that the bumping phenomenon of a rotary evaporator can be completely eradicated, and the high-speed distillation instrument has the advantages of high working efficiency, environment friendliness, high safety and the like.

This invention relates to organic functional thin films, specifically to a method for growing controllable number of layers using solvent vapor-assisted growth. p A method for preparing MSB molecular crystal thin films, and the application of these films in generating superoxide ions under light irradiation for antibacterial protection. This method addresses the limitations of existing solution drop casting epitaxy methods for preparing... p To address the problems of uncontrollable layer number, limited area, and insufficient reactive oxygen generation efficiency in MSB molecular crystal thin films, this invention utilizes toluene vapor atmospheres of varying concentrations to control the solvent evaporation rate, thereby achieving... p The few-layer, large-area, and uniform growth of MSB molecular crystal thin films allows for the regulation of molecular arrangement and electronic structure, promoting electron localization and efficient electron transfer to oxygen molecules under illumination, thus significantly improving the generation efficiency and stability of superoxide ions.

The application discloses a modified two-dimensional metal organic framework nanosheet membrane, a preparation method thereof and gas separation application. The original two-dimensional metal organic framework nanosheet membrane is controllably modified through solvent vapor treatment, the interaction force between adjacent nanosheet layers in the nanosheet membrane is enhanced, and the passage of macromolecular gas along the channel between the nanosheet layers is inhibited, so that the separation selectivity is improved. The preparation and modification method of the original nanosheet membrane comprises the following steps: (1) synthesizing a metal organic framework layered precursor by a solvothermal method; (2) combining a wet ball milling method and an ultrasonic dispersion method to delaminate the metal organic framework layered precursor to obtain two-dimensional metal organic framework nanosheets; (3) assembling the two-dimensional metal organic framework nanosheets into an original two-dimensional layered metal organic framework nanosheet membrane on the surface of a porous carrier; and (4) modifying the nanosheet membrane through solvent vapor treatment. The modified two-dimensional metal organic framework nanosheet membrane prepared by the application has excellent gas separation performance.

The utility model relates to the technical field of semiconductor manufacturing, in particular to a wafer supporting structure for baking. The utility model provides a wafer supporting structure for baking, which can enable the side end supporting assembly and the middle supporting assembly to alternately support the lower surface of a wafer through a mode of arranging the side end supporting assembly, the lifting motor and the middle supporting assembly, thereby reducing the influence on the baking effect of the wafer caused by heat transfer blocking due to local shielding, and improving the baking quality of the wafer. The baking difference of the wafer is reduced; and 2, the side end supporting assembly lifts or sinks one side of the wafer, so that the wafer swings up and down during baking, the surface adhesive film flows and is redistributed through external force, the thickness uniformity of the adhesive film is improved, meanwhile, solvent steam is more easily diffused to the surface from the interior of the adhesive film, and the volatilization efficiency of the solvent steam is improved.

The application provides a method for synthesizing 2,2'-dithiobisbenzothiazole under negative pressure, wherein the absolute pressure of a reaction system is controlled to be 20-45 kpaA, the reaction temperature in a reaction kettle is kept at 30-60 DEG C under the pressure, 2-mercaptobenzothiazole slurry and an oxidizing agent are reacted, 2,2'-dithiobisbenzothiazole is synthesized by a one-step method, and solvent vapor is returned to a solvent recovery tank after being condensed. The method can control the reaction temperature by controlling the vacuum degree of the reaction system, the reaction kettle body does not need to be provided with heat exchange pipes, the problem of poor heat transfer effect caused by fouling can be effectively avoided, the production can be continuously and stably carried out, the cost of starting and stopping and the safety risk can be effectively reduced, the reaction heat can be effectively utilized to recover the solvent, the energy consumption cost of 200 yuan per ton of product can be directly reduced, the temperature in the reaction system kettle is more uniform, the side reaction is less, the product content is high, and the yield is high.

The present disclosure relates to a method of manufacturing a 3D printed object. The method comprises treating an outer surface of a 3D printed object with a dye condensing solvent vapour on the treated outer surface; and dissolving a portion of the treated outer surface in the condensed solvent to reduce the surface roughness of the 3D printed object.

A method for manufacturing a bulk heterojunction organic photovoltaic cell through a combination of thermal annealing and solvent vapor annealing is described. In an effort to improve the crystalline properties of a photoactive material, a bulk heterojunction film may be prepared by a known method, e.g., spin coating, and then exposed to one or more vaporized solvents and thermally annealed.

This invention relates to a substrate processing apparatus and a substrate processing method. The substrate processing apparatus includes: a processing tank storing a processing liquid; a chamber surrounding the processing tank; a solvent vapor nozzle supplying solvent vapor into the chamber; a cleaning liquid nozzle supplying cleaning liquid into the chamber; and a control unit. The control unit performs an immersion process and a drying process at predetermined intervals. The immersion process involves immersing the substrate in the processing liquid stored in the processing tank, and the drying process uses solvent vapor supplied from the solvent vapor nozzle to dry the substrate, which has been processed in the processing liquid and then removed from the processing tank. The control unit supplies cleaning liquid into the chamber from the cleaning liquid nozzle and immerses the processing tank in the cleaning liquid stored in the chamber, thereby performing a chamber cleaning process to clean the chamber, including the outer wall of the processing tank.

This pattern-forming device comprises: a solvent treatment compartment which has a chamber for accommodating a substrate and a supply port for solvent vapor, and in which a pattern-forming treatment for forming a pattern on the substrate by treating the substrate with the solvent vapor having been supplied into the chamber is performed; a heat treatment compartment which has a chamber for accommodating the substrate having been treated in the solvent treatment compartment and a heater for heating the substrate, and in which, through heating with the heater, a drying treatment is performed to dry the substrate on which the pattern has been formed; a conveyance mechanism which conveys the substrate between the solvent treatment compartment and the heat treatment compartment; and a housing which accommodates the solvent treatment compartment, the heat treatment compartment, and the conveyance mechanism in a shared accommodation space.

The utility model relates to the technical field of solvent recovery, in particular to a totally-enclosed solvent recovery distillation device which comprises a heating tank, a support is fixed at the bottom end of the outer wall of the heating tank, a condenser is arranged on one side of the outer wall of the heating tank, and a cold air conveying component is mounted at the top of the heating tank. One end of the cold air conveying component is communicated with the condenser, a cold water conveying component is arranged at the bottom end of the outer wall of the condenser, and a segmented condensation component is arranged in the condenser. And the right half section can be subjected to heat exchange condensation by cold water, so that the consumption of the cold water is less, the heat conduction performance is high when the cold water is used for condensation, and the condensation effect of the solvent steam is better.

The invention relates to a high-stress-resistance PMMA composite film, a preparation method and a flexible OLED device.The preparation method comprises the steps that polymethyl methacrylate, a solvent and functional nano filler are fully mixed to form a film, the formed film is placed in a closed solvent steam environment to be slowly dried, a steam source is the solvent for dissolving the polymethyl methacrylate, the functional nano filler is taken as a functional nano filler, and the functional nano filler is taken as a functional nano filler to prepare the high-stress-resistance PMMA composite film. And inducing to form a nano wrinkled flow guide structure on the surface of the formed film to obtain the high-stress-resistance PMMA composite film. The composite film has excellent high optical transmittance, bending stress, curling stress and flexibility, and is adaptive to the use requirements of devices such as a polaroid, a packaging film and a light control film in a flexible OLED (Organic Light Emitting Diode).

This invention relates to the field of electronic materials technology, specifically disclosing a copper-based varistor chip electronic paste and its preparation method. The paste is composed of a specific ratio of sheet-like and nano-copper powder, a glass binder phase, an organic carrier, and functional additives. The preparation method employs a multi-stage vacuum dynamic degassing device. This device gently releases large bubbles through a pretreatment chamber, and utilizes a dynamic stirring mechanism with combined revolution, rotation, and reciprocating motions within the main degassing chamber to achieve strong shearing and agitation of the paste across its entire surface. Combined with ultrasonic cavitation, this deeply breaks down bubbles, thereby efficiently and thoroughly removing them. Simultaneously, the device integrates an online viscosity monitoring and intelligent solvent vapor compensation system, enabling real-time adjustment and stabilization of the paste's rheological properties. This invention effectively solves the problems of incomplete bubble removal and performance fluctuations caused by solvent evaporation, significantly improving the density, uniformity, and production consistency of the paste product.

The invention relates to the technical field of biomimetic materials, polymer composite materials and polymer fibers, and discloses a preparation method of biomimetic assembled high-performance artificial spider silk fibers, which comprises the following steps: preparing primary gel fibers containing rigid network nodes and flexible polymer chains; stretching the primary gel fiber in a closed environment in which the temperature and the solvent vapor pressure are controlled at the same time; according to the environment, solvent molecules preferentially swell the flexible polymer chain, the rigid network nodes are kept stable, and the applied drawing force drives the flexible polymer chain to slide and axially orientate among the rigid network nodes. According to the method, the specific stretching environment is constructed, internal physical conflicts of stretching gain and structural damage are remodeled into a synergistic process, the situation that microdefects are generated at a rigid-flexible interface by stretching force is avoided, and a bionic rigid-flexible composite structure which is difficult to achieve in the prior art and has high integrity is obtained for final fibers.

The utility model provides a connecting device for collecting and recycling organic gas in a coating and drying process, and relates to the technical field of coating and drying. The connecting device for collecting and recycling the organic gas in the coating and drying process comprises a connecting body, and the connecting body is provided with a connecting cavity. According to the connecting device for collecting and recycling the organic gas in the coating and drying process, by arranging the single variable-frequency regulating valve, the exhaust speed and the exhaust amount of the organic gas can be accurately controlled, production and quality stability are ensured, and the situation that the wind direction and the wind speed in a drying box and the stability of the temperature of the drying box are affected due to excessive exhaust of the organic gas is effectively prevented; the surface of the photosensitive liquid which is coated on the surface of the aluminum plate and is not dried generates wind lines and wind patterns, so that a product is scrapped; and the problems that solvent steam cannot be discharged in time, the temperature of the drying oven is increased, 'solvent drops' are formed in the drying oven and drop to the plate surface, waste products are generated, and even explosion danger is generated due to overhigh steam pressure are effectively prevented due to the fact that the discharge speed and discharge amount of organic gas are too small.

The inkjet recording apparatus of the present invention aims to reduce the amount of solvent vapor floating around when the print head is cleaned. Also, it aims to reduce ink contamination around the print head. The inkjet recording apparatus includes a main body section and a print head. The main body section includes an ink container that stores ink and a solvent container that stores solvent. The print head has a nozzle that is connected to the ink container and that discharges ink supplied under pressure, a charging electrode that charges ink particles discharged from the nozzle, a deflection electrode that deflects ink particles charged by the charging electrode, and a gutter that recovers ink. In addition, there is a head mounting unit for cleaning the print head. The head mounting unit is connected to a solvent vapor suction passage for suctioning solvent vapor generated around.

A post-processing device for 3D-printed plastic parts and an installation method thereof are disclosed. The post-processing device includes an equipment housing having a loading chamber formed therein. A reaction chamber configured to accommodate 3D-printed plastic parts is disposed within the loading chamber and is provided with a chamber cover. A retaining assembly is arranged in the loading chamber to secure the reaction chamber. A lower portion of the reaction chamber is fluidly connected to a recovery chamber via a connecting pipe, and the recovery chamber is configured to collect solvent vapor generated in the reaction chamber. A connecting assembly is provided on the recovery chamber, such that when the reaction chamber is secured in the loading chamber by the retaining assembly, the reaction chamber is simultaneously brought into fluid communication with the recovery chamber. The disclosed configuration simplifies installation of the reaction chamber and improves installation efficiency and reliability.

A closed rotatable extraction system includes at least two tubes where one tube accepts an extractable material, and the system can be evacuated through a valve in the system. At least one conduit comprises at least one flexible hose, bent ridged pipe, t-pipe, curved pipe, or any combination thereof. At least one valve that when open allows evacuation of the system, and optionally for introduction of a solvent for extraction. When the at least one valve is closed a solvent vapor atmosphere is defined as almost exclusively or exclusively the solvent vapor and has a gas pressure that is about the solvents vapor pressure or less in the closed rotatable extraction system. The closed rotatable extraction system or a portion thereof can involve a first rotation orientation for liquid transfer and a second orientation for a vapor transfer.

A method for producing an ethylene-vinyl alcohol copolymer, which comprises: a step (I) wherein an ethylene-vinyl acetate copolymer in a solution of the ethylene-vinyl acetate copolymer is saponified using a base catalyst to obtain a solution of a partially saponified product of the ethylene-vinyl acetate copolymer having a degree of saponification of 10 mol% or more but less than 60 mol%; and a step (II) in which a solution of the partially saponified ethylene-vinyl acetate copolymer is supplied to the tower upper part of the tower reactor (A), solvent vapor is supplied to the tower lower part and discharged from the tower upper part, and the partially saponified ethylene-vinyl acetate copolymer is discharged from the tower lower part. A base catalyst is supplied to the tower reactor (A) at a position lower than the position at which the solution of the partially saponified ethylene-vinyl acetate copolymer is supplied, and the partially saponified ethylene-vinyl acetate copolymer is further saponified. The obtained ethylene-vinyl alcohol copolymer solution having a degree of saponification of 99-100 mol% is taken out from the bottom of the column. According to this production method, the ethylene-vinyl acetate copolymer can be efficiently saponified even when the ethylene-vinyl alcohol copolymer is continuously produced for a long period of time, and thus the ethylene-vinyl alcohol copolymer can be produced with good productivity.

The invention discloses a hydrophobic anti-ultraviolet degradable polymer material with a bionic micro-nano structure and a preparation method of the hydrophobic anti-ultraviolet degradable polymer material with the bionic micro-nano structure, a surface cross-linkable / inner-layer hydrophobic supported double-layer structure is constructed through double-layer co-extrusion, surface layer cross-linking is initiated through heat treatment, non-cross-linked parts on the surface are removed through selective etching of solvent vapor, and the hydrophobic anti-ultraviolet degradable polymer material with the bionic micro-nano structure is obtained. Finally, surface molecular chain micro-regions are rearranged and fixed through ultraviolet radiation, the chemical stability and durability of the structure are improved, a secondary nano-structure of the cross-linked bionic fruit epidermis wax with light stability is constructed on the surface of a degradable polymer, the structure ingeniously utilizes a physical scattering ultraviolet protection mechanism, and the mechanical property of the structure is improved. Meanwhile, the material is endowed with the super-hydrophobic characteristic, a long-acting and stable protective layer is constructed on the surface of the material, the ideal performance of durability in the early stage and rapid degradation in the later stage is achieved, and the material can be used for preparing high-end packaging materials, agricultural mulching films, outdoor protective coatings or photoelectric device protective layers.

Described herein is a cleaning system comprising an enclosure structure defining an enclosure space for receiving an article therewithin, and a solvent vaporizer for introducing solvent vapour into the enclosure space for interacting with the article to remove particles therefrom. The cleaning system further comprises a solvent processor for extracting the solvent vapor and the solvent condensate from the enclosure space. The solvent processor for generating a negative pressure for substantially extracting the solvent vapour away from the enclosure space. The cleaning system further comprises a filtration system for filtering the particles from the extracted solvent vapour and solvent condensate. The solvent vapour is condensed into solvent condensate prior to filtration thereof and at least a portion of the solvent condensate is subsequently re-introducable into the enclosure space as solvent vapour.