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75 results about "Phase splitting" patented technology

Method for preparing gold nanoparticles based on two-phase flow microfluidic control

The invention relates to the field of microfluid chemical synthesis, and discloses a method for preparing gold nanoparticles based on two-phase flow microfluid control. The method comprises the following steps: 1) converging a gold precursor water phase, a reducing agent water phase and an organic phase in a micro-fluidic chip at 0-25 DEG C to form water-in-oil liquid drops; (2) conveying the fluid to a mixing area channel of a micro-fluidic chip, and carrying out instantaneous nucleation reaction to form a gold nanoparticle prototype; 3) conveying the fluid into a capillary reactor, and further nucleating, growing and curing the gold nanoparticle prototype; and (4) the fluid is subjected to phase splitting, and a gold nanoparticle solution is obtained. A three-in-one micro-fluidic chip is adopted, process parameters are optimized, and a gold precursor and a reducing agent are wrapped in an organic phase before reaction to form water-in-oil liquid drops, so that on one hand, the situation of adsorption and scaling of the inner wall of a channel can be avoided, and on the other hand, the heat and mass transfer efficiency of a material can be improved through the generated liquid drops; and the uniformity of a reaction nucleation environment is ensured.
Owner:HANGZHOU TINKER BIOTECHNOLOGY CO LTD

Preparation method of composite double-layer microporous membrane

The invention provides a preparation method of a composite double-layer microporous membrane, and belongs to the technical field of separation membrane preparation, different lower-layer and upper-layer membrane casting solutions are prepared respectively, the separation membrane is prepared at one time by adopting a double-scraper casting and coating method, the upper layer is thermally induced phase separation, and the lower layer is thermally induced phase separation or non-solvent induced phase separation; the double-layer liquid membrane is subjected to pre-phase splitting and pore opening in a constant-temperature and constant-humidity environment, and enters a gel bath at a certain temperature after pre-phase splitting, and a microporous membrane with a certain membrane structure is formed under the action of RTIPS and NIPS. According to the invention, a co-coating method is adopted, and VIPS, RTIPS and NIPS are used for adjusting the pore structure of the membrane, so that the microporous membrane meeting different filtering requirements is prepared; the prepared membrane product is high in flux and high in yield; the preparation process is simple and conditions are mild: the microporous membrane prepared by the method is simple in process, mild in conditions and suitable for industrial production; and the membrane structures of the upper and lower membranes can be freely adjusted.
Owner:BEIJING ORIGIN WATER FILM TECH

Centrifugal gravity coupling type liquid-liquid phase splitter

ActiveCN120695495ALiquid separationPhase splittingPhase splitter
The invention relates to a centrifugal gravity coupling type liquid-liquid phase splitter which comprises an upper end socket, a cylinder and a lower end socket which are sequentially and coaxially connected from top to bottom, a heavy-phase weir plate and a light-phase weir plate are arranged in the cylinder, the light-phase weir plate is arranged above the heavy-phase weir plate, the light-phase weir plate is of a structure with a wide upper part and a narrow lower part as a whole, and the heavy-phase weir plate is of a structure with a narrow upper part and a wide lower part as a whole. The lower end of the light-phase weir plate is matched and butted with the upper end of the heavy-phase weir plate, and a communicating hole is formed at the joint; a light-phase separation hole channel is formed in one end part, close to the communicating hole, of the light-phase weir plate; a heavy-phase separation hole channel is formed in one end part, close to the cylinder body, of the heavy-phase weir plate; a feeding pipe is arranged on the side wall of the part, between the light-phase weir plate and the heavy-phase weir plate, of the cylinder body; the axis direction of the feeding pipe is tangent to the circumferential direction of the cylinder body; and guide vanes are arranged on the inner wall of the part, between the light-phase weir plate and the heavy-phase weir plate, of the cylinder body. The phase-splitting device has the beneficial effects of simple and compact structure, high phase-splitting efficiency, high phase-splitting purity and low cost.
Owner:TIANJIN LEKE ENERGY SAVING TECH CO LTD +1

Volume holographic grating raw material system, volume holographic grating and preparation method thereof

The invention relates to the technical field of display, in particular to a volume holographic grating raw material system, a volume holographic grating and a preparation method of the volume holographic grating. The volume holographic grating raw material system comprises a photopolymerizable monomer, a liquid crystal, an organic additive and a photoinitiator, the structural formula of the organic additive is A-B, A is a photopolymerizable monomer affinity group, and B is a liquid crystal affinity group. On the basis of a raw material system composed of a photopolymerizable monomer, liquid crystal and a photoinitiator, a novel organic additive is introduced, and the organic additive is beneficial to good phase separation of a PDLC system and increase of the refractive index difference between a bright area and a dark area, so that the refractive index modulation degree of the volume holographic grating is improved, and the display application in the AR / VR field is met.
Owner:ZHUHAI MOJIE TECH CO LTD

Carbon dioxide absorbent performance evaluation device

ActiveCN223192901UMaterial analysisPhase splittingPhase splitter
The utility model relates to the technical field of carbon capture, in particular to a carbon dioxide absorbent performance evaluation device which comprises an absorption tower, a phase splitter and a falling film evaporation desorption device, the cavity of the absorption tower is filled with a filler layer, and the phase splitter is provided with a gas inlet for introducing a gas source with carbon dioxide into the cavity; a liquid inlet communicated with the cavity is formed in the top of the absorption tower and is used for introducing an absorbent into the cavity, and the carbon dioxide and the absorbent are in full contact in the filler layer, so that the absorbent forms a mixed solution; the phase splitter is provided with an inlet and a rich phase outlet, the inlet is communicated with the cavity, so that the mixed liquid flows into the phase splitter, the phase splitter is used for carrying out phase splitting on the mixed liquid to form an absorbent rich solution, the rich phase outlet of the phase splitter is connected with the falling film evaporation desorption device, and the falling film evaporation desorption device is used for desorbing the absorbent rich solution. The carbon dioxide packed tower fully considers the characteristics of the carbon dioxide packed tower applied in practical engineering, the absorbent fully absorbs carbon dioxide through the absorption tower in a laboratory, and the test accuracy is high.
Owner:BEIJING BUILDING MATERIALS ACADEMY OF SCI RES +1

Signal period determination method and device, equipment, medium and program product

The embodiment of the invention discloses a signal period determination method and device, equipment, a medium and a program product. Comprising the following steps: acquiring a to-be-measured signal, a basic clock signal, a frequency increasing multiple and a split-phase number; performing frequency multiplication and phase splitting processing on the basic clock signal according to the frequency multiplication multiple and the phase splitting number to obtain a plurality of frequency multiplication phase splitting clock signals; sampling the to-be-measured signal for at least two periods through the basic clock signal and each frequency multiplication phase-splitting clock signal, and determining a counting result corresponding to each period; and determining the signal period of the to-be-detected signal according to each counting result. As the sampling times are greatly increased, the precision and accuracy of periodic measurement of the to-be-measured signal are improved, and the shooting stability of an industrial camera triggered according to the to-be-measured signal is further improved.
Owner:SHANGHAI YUWEI SEMICON TECH CO LTD

Nano precipitated phase reinforced refractory high-entropy alloy and preparation method thereof

The invention discloses a nano precipitated phase reinforced refractory high-entropy alloy and a preparation method thereof, and relates to the technical field of preparation of novel metal materials. According to the method, the NbMoTaW refractory high-entropy alloy serves as a base material, the phase separation phenomenon of the base is effectively induced by introducing a high-proportion Zr element into the base, and the formation of a nanoscale precipitated phase which is evenly and dispersively distributed is successfully achieved by combining specific solid solution and aging treatment processes. The refractory high-entropy alloy prepared through the method shows excellent performance characteristics, the basic properties of the material are remarkably improved, more possibilities are provided for application of the refractory high-entropy alloy in an extreme environment, and the refractory high-entropy alloy is expected to be widely applied and developed in the fields of aerospace, nuclear industry and the like.
Owner:GUIZHOU UNIV

Heterogenous accelerators for efficient generative LLM inference using phase splitting

A system and method for splitting a prompt and token generation phase in a generative large language model (LLM) inference onto separate virtual machines (VMs) is provided. Two separate pools of VMs for prompt and token processing are maintained. The VMs in each of the pools are pre-loaded with a model of choice. A scheduler allocates an inference to a prompt VM from a pool of prompt VMs and a token VM from a pool of token VMs. Context generated from layers of the generative LLM during the prompt computation is saved in a key-value (KV) cache that is transferred from the prompt VM to token VM as it is used for all the future token generation iterations.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC

Phase splitting circuit and memory device including same

PendingCN121171285AManipulation where pulse delivered at different timesDigital storagePhase splittingHemt circuits
A memory device includes a phase splitting circuit configured to generate a first clock signal and a second clock signal for use in an input / output circuit. The phase splitting circuit includes: a first delay path configured to output a first delay signal; a second delay path configured to output a second delay signal; a third delay path configured to output a third delay signal; and a fourth delay path configured to output a fourth delayed signal. The phase splitting circuit further includes a first output terminal configured to phase interpolate the first delayed signal and the second delayed signal to output a first clock signal; and a second output terminal configured to combine the third delayed signal and the fourth delayed signal to output a second clock signal complementary to the first clock signal.
Owner:SAMSUNG ELECTRONICS CO LTD

Mitigating dense bubbles and rarified droplets in multiphase fluid flow simulations

Systems and methods for digitally simulating a multiphase fluid flow in a three-dimensional computer-aided design (CAD) model of a simulation space include receiving a digital representation of a simulation space, the digital representation including a three-dimensional CAD model of the simulation space including a mesh represented as a plurality of voxels; and digitally simulating a multiphase fluid flow in the digital representation of the simulation space. While simulating the multiphase fluid flow, one or more voxels in the digital representation with an incorrect phase separation are identified; and a local diffusivity parameter of the identified one or more voxels are altered to correct the incorrect phase separation.
Owner:DASSAULT SYSTEMS AMERICAS CORP

Preparation device

The utility model discloses a preparation device which is characterized in that the output end of a solvent mixing kettle is connected with a solvent dripping kettle, and the output end of the solvent dripping kettle is connected with a preparation tower; a first feeding device is connected above the preparation tower, and the output end of the preparation tower is connected with the addition tower; the addition tower is connected with a second feeding device, and the output end of the addition tower is connected with a continuous phase splitting device; the output end of the continuous phase splitting device is connected with a rectifying tower, the top of the rectifying tower is connected with a first condenser, the output end of the first condenser is connected with a first storage tank, the bottom of the rectifying tower is connected with a second condenser, and the output end of the second condenser is connected with a second storage tank; quantitative continuous adding is achieved in the solvent mixing kettle for adding raw materials, the solvent dropwise adding kettle and the first feeding device, the speed of the reaction process is controlled, cooling control is further conducted through the rectifying tower and the condenser after a cooling layer is designed on the preparation tower and passes through the continuous phase splitting device, safety is higher, and continuous production of the prothioconazole intermediate is achieved.
Owner:SULI (NINGXIA) NEW MATERIAL TECH CO LTD

Power supply circuit and switching tube control circuit thereof

The invention discloses a power supply circuit and a switching tube control circuit thereof. In the circuit, a time delay circuit is connected with a corresponding controlled switching tube; the driving unit is connected with the phase splitting unit and provides an initial pulse width modulation signal for the phase splitting unit; and the phase splitting unit is connected with the delay circuits and is used for respectively providing driving pulse width modulation signals with the phase opposite to or the same as that of the initial pulse width modulation signal for the two delay circuits in the same pair according to the initial pulse width modulation signal. Whenever an initial pulse width modulation signal reaches a trigger edge, the time delay circuit corresponding to the originally switched-on controlled switch tube controls the corresponding controlled switch tube to be switched off immediately and stores energy for the controlled switch tube itself, and the time delay circuit corresponding to the originally switched-off controlled switch tube controls the controlled switch tube to be switched on after the controlled switch tube continues to be switched off for a preset duration by using the electric energy stored last time; alternating conduction control and dead time generation of the paired controlled switch tubes are realized, the circuit structure is simple, software design is not needed, and the development duration and the debugging cost are reduced.
Owner:WUHAN JUNTAO TECHNOLOGY CO LTD

Decoupling type phase segmentation method and system for composite gel system microstructure

The invention belongs to the related technical field of phase segmentation, and discloses a decoupling type phase segmentation method and system for a composite gel system microstructure, and the method comprises the steps: (1) forming a reusable particle database through particle images corresponding to each kind of target gel particles; (2) taking an artificially marked pure cement paste BSE image as a background image, inserting particles in a reusable particle database into a cement matrix area to obtain a stage 1 model training data set, and training a stage 1 universal segmentation model; (3) training the stage 2 particle classification model by adopting particles in the reusable particle database; (4) inputting the BSE image to be subjected to phase splitting into the stage 1 universal segmentation model to obtain a matrix, a pore and a particle mask; and stage 2, the classification model performs joint classification based on the particle masks and all particles in the BSE image to be subjected to phase splitting so as to obtain the specific phase category of each particle. According to the invention, the universality is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Metal type coordination additive material as well as preparation method and application thereof

The invention belongs to the technical field of organic solar cells, and particularly discloses a metal type coordination additive material and a preparation method and application thereof. The coordination additive material takes Y6 as a starting material, and is obtained through a reduction reaction, a 1, 10-phenanthroline-5, 6-diketone ring closing reaction and a 4, 4, 4-trifluoro-1-(thiophene-2-yl) butane-1, 3-diketone coordination reaction. When the additive material is added into the active layer, JSC and FF can be enhanced. According to the preparation method, a good phase separation morphology and a high-purity structural domain are promoted to be formed, construction of a high-quality interpenetrating network is facilitated, more efficient and more balanced carrier transport is realized, dissociation of excitons is effectively promoted, and charge recombination is inhibited. Meanwhile, the electron transport performance is enhanced, and the non-radiation voltage loss is reduced. The synthesis process provided by the invention is simple and easy to purify, and has a good practical application prospect.
Owner:JIANGHAN UNIVERSITY

Voltage drop detection device, system, chip and method

The embodiment of the invention discloses a voltage drop detection device, system, chip and method, relates to the technical field of integrated circuits, can effectively improve the accuracy of power supply voltage drop detection, and facilitates the improvement of system performance. The voltage drop detection device is powered by a target power supply, and the voltage drop detection device comprises: a phase splitting module configured to perform delay adjustment on an input source clock signal to obtain a plurality of phase splitting clock signals, the plurality of phase splitting clock signals having the same frequency and different phases; the first input end of the detection module is connected with a reference clock signal, the second input end of the detection module is connected with the split-phase module, and the detection module is configured to detect the change of the output voltage of the target power supply by performing phase comparison on the reference clock signal and each split-phase clock signal in the plurality of split-phase clock signals; wherein the reference clock signal is selected from a plurality of alternative clock signals. The invention is suitable for voltage drop detection.
Owner:HYGON INFORMATION TECH CO LTD

Targeted CSDE1 phase separation compound and application thereof in virus resistance

The invention belongs to the technical field of medicines, and particularly relates to a compound for targeted CSDE1 phase separation and application of the compound in virus resistance. According to the invention, it is found for the first time that the compound 5350-0763 is directly combined with the CSDE1 protein to inhibit the interaction between the compound 5350-0763 and RNA, so that the formation of a CSDE1-RNA aggregate is destroyed. By destroying CSDE1 agglomerates and releasing isolated immune stimulation RNA, RIG-I and other sensors can effectively recognize, so that virus immune escape is relieved, and host innate immune response is restarted. Meanwhile, co-phase separation of CSDE1 and SARS-CoV-2 nucleocapsid protein can be destroyed, and the immune antagonism ability of the virus is weakened. According to the invention, a new medicinal application is developed for the compound 5350-0763, and an experimental foundation is laid and a new view is provided for developing efficient and specific anti-RNA virus medicines, so that the compound 5350-0763 has important clinical significance and social benefits.
Owner:SHANDONG UNIV

Buffer layer structure, mHEMT device and mHBT device

The invention discloses a buffer layer structure. The buffer layer structure comprises a gallium arsenide substrate; the InAlAs buffer memory layer and the InAlP or InGaP buffer memory layer are sequentially stacked on the gallium arsenide substrate; in the manufacturing process, the In component is increased from 0% to a first preset content, so that the lattice parameter of the InAlAs cache layer is gradually increased from the lattice parameter of gallium arsenide to a preset lattice parameter; the lattice parameter of the InAlP or InGaP cache layer is gradually increased to the lattice parameter of indium phosphide from the preset lattice parameter by increasing the In component from the second preset content to 100% in the manufacturing process; wherein the InAlAs buffer layer does not have phase separation when the In component of the InAlAs buffer layer is the first predetermined content, and the InAlP or InGaP buffer layer does not have phase separation when the In component of the InAlP or InGaP buffer layer is the second predetermined content.
Owner:SUZHOU JINGGE SEMICON CO LTD

Power-free automatic phase-splitting device and carbon dioxide trapping system with power-free automatic phase-splitting device

The invention provides a reactive automatic phase splitting device and a carbon dioxide capture system with the same, and relates to the technical field of carbon dioxide capture. The wattless automatic phase-splitting device comprises a phase-splitting tank body and a phase-splitting component. A liquid inlet, a lean-phase liquid outlet and a rich-phase liquid outlet are formed in the split-phase tank body, and a lean-phase liquid outlet pipe and a connecting hose are arranged in the split-phase tank body. The density of the lean-phase liquid outlet pipe is the same as that of lean-phase liquid, and the density of the connecting hose is the same as that of rich-phase liquid. The split-phase part comprises a baffle located in the split-phase tank body, a plurality of holes are evenly formed in the baffle, and the baffle is connected with the inner wall of the split-phase tank body in an up-down sliding mode; the density of the baffle is between the lean phase and the rich phase. The wattless automatic phase splitting device can automatically adapt to the height change of a poor-rich phase interface, does not need external power input, is suitable for various solvent systems, and improves the overall energy efficiency and economical efficiency of a carbon capture system.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Phase separation transport channel molecule spinning electronic device and preparation method thereof

PendingCN121941185AMolecular semiconductorMetal electrodes
The invention relates to the technical field of semiconductors, and provides a phase separation transport channel molecular spinning electronic device and a preparation method thereof. The phase separation transport channel molecule spinning electronic device comprises a substrate, a ferromagnetic metal electrode I, an interface layer, a phase separation molecule semiconductor intermediate transport layer and a ferromagnetic metal electrode II which are arranged in sequence, the phase separation molecular semiconductor intermediate transport layer has a phase separation structure formed by a fullerene derivative and polymer mixed system. According to the phase separation transport channel molecular spin electronic device and the preparation method thereof provided by the invention, the molecular semiconductor intermediate transport layer is prepared into a space-limited phase separation structure through the phase separation structure formed by the fullerene derivative and polymer mixed system, so that the room-temperature spin transport efficiency can be greatly improved; and the air environment stability and the working stability are excellent.
Owner:THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA

Light and force dual-mode dynamic fluorescent thin film material based on spiropyrane, metal organic framework and polydimethylsiloxane as well as preparation method and application of light and force dual-mode dynamic fluorescent thin film material

The invention discloses a light-force dual-mode dynamic fluorescent thin film material based on spiropyrane, a metal organic framework and polydimethylsiloxane as well as a preparation method and application of the light-force dual-mode dynamic fluorescent thin film material, and belongs to the technical field of dynamic luminescent materials. According to the invention, a double-bond-containing metal organic framework material and diolefin spiropyrane are introduced and are then copolymerized with a vinyl-terminated polydimethylsiloxane matrix, so that all substances are connected through covalent bonds, the uniformity and stability of the thin film material are improved, the problems of phase splitting and leakage existing in conventional physical loading are solved, and the performance of the thin film material is improved. And meanwhile, the film material is endowed with excellent light and force dual-mode dynamic luminescence performance. The film is prepared by a copolymerization method, so that the prepared film is more uniform and more excellent in light stability, and the preparation method is simple and is easier to apply to practice.
Owner:ZHEJIANG SCI-TECH UNIV

Visual experiment device and method for researching two-phase separation performance of T-shaped joint

The invention provides a T-shaped section two-phase separation performance research visualization experiment device and experiment method, and relates to the technical field of two-phase flow flow characteristic research. The problems that in the prior art, the pressure drop and phase separation characteristics of the T-shaped joint under different liquid phase and gas phase flows are difficult to measure, and the two-phase separation flow behavior at the T-shaped joint and the flow change during transition flow pattern are difficult to display are solved. The device comprises a two-phase separation experiment section, a gas phase supply section and a liquid phase circulation section, wherein the two-phase separation experiment section is respectively connected with the gas phase supply section and the liquid phase circulation section; the two-phase separation experiment section comprises a first vertical pipe, a transverse pipe, a second vertical pipe, a first gas flow meter, a differential pressure transmitter and a camera, the first vertical pipe, the transverse pipe and the second vertical pipe are integrally H-shaped and are all made of transparent materials, a first T-shaped section is formed in the connecting area of the transverse pipe and the first vertical pipe, and a lens of the camera faces the first T-shaped section. The device is mainly used for the visualization experiment of the two-phase separation performance research of the T-shaped section.
Owner:HARBIN ENG UNIV

System and method for capturing CO2 based on phase change solvent

The invention provides a system and a method for capturing CO2 based on a phase change solvent, and relates to the technical field of CO2 capturing, utilization and storage. The system for capturing CO2 based on the phase change solvent comprises a flue gas dedusting and cooling device, a supergravity absorption machine, a phase splitting tank, a static mixer, a barren liquor cooler, a barren and rich liquor heat exchanger, a supergravity desorption machine, a CO2 cooler and a CO2 liquid separation tank. The advantages of the phase change solvent and the supergravity technology are combined, CO2 is efficiently recycled, meanwhile, the number of times of recycling of the phase change absorbent is increased, the solvent regeneration and circulation capacity is high, meanwhile, the energy consumption of the flue gas CO2 capturing system is greatly reduced, and the system further has the advantages of being small in size of main equipment, small in occupied area, light in weight, easy to install and the like.
Owner:CHINA NAT OFFSHORE OIL CORP +3

System and apparatus for phase separation

A system or apparatus comprising a chamber for separating solids, liquids, and / or gases in a slurry mixture. Once separated, the individual components are directed separately for storage, use or disposal. The system described herein is compact and can be transported on a single trailer. It also has minimal components making it easy for assembly and storage when not in use. This system can be used for any industrial application that requires phase separation.
Owner:COWBOY OILFIELD LOGISTICS LLC +2

Phase change absorbent for CO2 capture and preparation method and application thereof

The invention discloses a phase change absorbent for CO2 capture and a preparation method and application thereof, and belongs to the technical field of carbon dioxide capture and separation technologies, the phase change absorbent comprises 3-diethylaminopropylamine, TMPDA, isooctanol and water. The phase change absorbent provided by the invention has high absorption performance, small rich phase volume and high oxidative degradation resistance. The defect that a traditional MEA solution is prone to oxidative degradation is overcome, the problem that an existing phase change absorbent is not prone to phase splitting and high in rich phase volume is solved, and industrial popularization is facilitated.
Owner:NORTH CHINA ELECTRIC POWER UNIV +1

Phase-split glass and method for producing same

Provided is a phase-split glass having a three-dimensional shape and excellent appearance after post-processing. The phase-split glass has a first surface and a second surface provided facing each other, wherein at least one among the first surface and the second surface has a curved surface part, and the average aspect ratio of phase-split particles is 0.600 or more in each of five regions set at equal intervals along the plate thickness direction in a plate-thickness-direction cross section. Here, the aspect ratio is a ratio of the minor axis to the major axis of the phase-split particles.
Owner:AGC INC

Phase separation system

There is provided a phase separation system (1) for separating a first phase and a second phase. The phase separation system comprises an inlet (10), a chamber (20), a first conduit (30), a conical portion (40) and a second conduit (50). The inlet (10) is configured to receive a fluid mixture (103) comprising the first phase and the second phase. The first phase is a gas (101), and the second phase is a liquid (102). The chamber (20) comprises a top portion (21), a bottom portion (22) and a curved surface (23) extending between the top portion (21) and the bottom portion (22). The chamber (20) is configured for ingress of the mixture from the inlet (10). The inlet (10) is tangential to the curved surface (23). The first conduit (30) is at the top portion (21) and is configured for egress of the first phase from the chamber (20). The conical portion (40) is connected to the bottom portion (22) and is configured for egress of the second phase from the chamber (20). The second conduit (50) extends from the conical portion (40). The second conduit (50) comprises a bent section (52) and an inclined section. The inclined section extends from the bent section (52) to a peak point (70). An angle between a longitudinal axis (60) of the chamber (20) and the inclined section is less than 90º. The longitudinal axis (60) extends between the top portion (21) and the bottom portion (22).
Owner:RONNACH TECHNOLOGIES SL

Method for purifying (meth) acrylate

The invention relates to the field of separation, and discloses a refining method of (methyl) acrylate. The method comprises the steps that a (methyl) acrylate sample and an extraction agent are mixed, extraction and phase splitting are carried out, a light phase and a heavy phase containing phenolic compounds are obtained, and the extraction agent contains at least one of C1-C12 monohydric alcohols; or the extracting agent is at least one of polyhydric alcohols with the melting point being less than 40 DEG C. The method is high in extraction efficiency, phenolic compounds in (methyl) acrylate can be better removed, and emission of three wastes can be greatly reduced.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1