46results about "Chemical liquid solidification" patented technology

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastic via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

[Problem] A handling device for an easily polymerizable substance, capable of inhibiting polymer generation in ancillary equipment is provided. [Solution] A handling device 10 for an easily polymerizable substance includes: ancillary equipment 30 installed at a body part 20 in which an easily polymerizable substance is handled, the ancillary equipment 30 including no temperature control mechanism 40 that gas of the easily polymerizable substance can contact; and a temperature control mechanism 40 configured to control the temperature of the ancillary equipment 30 to a temperature lower than the boiling point of the easily polymerizable substance and to a temperature higher than the melting point of the easily polymerizable substance.

The continuous solution polymerization process according to an exemplary embodiment comprises: producing a product comprising a polymer through a polymerization process in a reactor; separating the product into a first solution comprising the polymer and a second solution comprising the polymer in the liquid-liquid separator; supplying the first solution to a devolatilizer and supplying the second solution separated to a solid-liquid separator (S / L separator); separating the second solution into a vapor comprising the polymer and a liquid-state polymer in the devolatilizer; separating the second solution and the vapor comprising the polymer into a solvent capable of being introduced into the reactor and a solid comprising the polymer in the solid-liquid separator (S / L separator); and introducing and recirculating the solvent capable of being introduced into the reactor into the reactor.

The invention discloses a steel belt crystallization device for producing aluminum sulfate, and relates to the technical field of cooling crystallization equipment. The steel belt crystallization device for producing the aluminum sulfate comprises a rotatable steel belt, the steel belt is of a continuous belt-shaped structure, a plurality of virtual subareas are defined in the width direction of the steel belt, each subarea is called as a single belt, the adjacent single belts are connected through an elastic bending part, and the elastic bending part is arranged between the adjacent single belts. The elastic bending part allows each single belt to elastically deform independently in the width direction; the steel belt crystallization device comprises a wide steel belt, a plurality of narrow single belts and a force application ridge, the force application ridge is located at the discharging end of the steel belt, the force application ridge comprises a head part arranged between every two adjacent single belts, and two inclined parts are arranged at the end, close to the discharging end of the steel belt, of each head part. And the convex points on the single belt are accurately extruded by combining the force application ridges, so that the volume shrinkage stress in the material cooling and curing process is converted into a favorable driving force for promoting the material to be separated from the steel belt, and the material stripping is more thorough.

The present invention provides a polycarbonate production method including: a polymerization step for polymerizing a dihydroxy compound and a diaryl carbonate, or prepolymers thereof in a polymerization reactor; a cleaning step in which an exhaust vapor that is discharged from the polymerization reactor used in the polymerization step, and that contains a hydroxyaryl compound, a diaryl carbonate, and a dihydroxy compound is brought into contact with a cleaning liquid in a scrubber; and a condensation step for condensing the exhaust vapor cleaned in the cleaning step, wherein at least a portion of a bottom liquid in the scrubber used in the cleaning step is supplied to the polymerization reactor.

A flow reactor that mixes a first and a second fluid, wherein the first fluid flows toward a first tip between an inner wall of a first inner tubular portion and an outer wall of a second inner tubular portion, the second fluid flows toward a second tip inside the second inner tubular portion, a third fluid having low affinity for the first and the second fluid flows toward a downstream end between an outer wall of the first inner tubular portion and an inner wall of an outer tubular portion, the second tip of the second inner tubular portion does not protrude further to the side of the downstream end than the first tip of the first inner tubular portion, and the first tip is located closer to the side of the upstream end than the downstream end when viewed from a direction orthogonal to the flow direction.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastic via the polymerization of dienes prior to further treatments.

The invention relates to a method for obtaining crystallised foetal bovine serum by adding agmatine that, at a specific concentration, acts to increase cell production and increase protein expression per cell. The method further relates to the specific form of reconstitution to liquid indicated in order to use same, without losing the original properties, allowing storage without an ultra-cold chain and reducing the risks of contamination, thereby allowing precise dosing of the amount to be used.

A method for producing an eco-friendly protective material to provide scour protection for artificial structures in aquatic environments is provided. The method involves depositing natural granular material from the geological region of the structure's environment into a mold and supplying an agent such as a bacterial suspension to initiate cementation. The agent may be selected based on analysis of local material and water samples to determine the most effective agent for cementation. The method results in a protective material that mimics natural beachrock formation, offering an environmentally sustainable solution for scour protection in marine and coastal infrastructure.

The present application relates to the technical field of sheeting machine, and discloses a vacuum sheeting machine, which comprises a mounting frame, a protective shell is arranged above the mounting frame, a feeding port is arranged above the protective shell, a discharging port is arranged at the bottom of the protective shell, a left mounting plate and a right mounting plate are arranged in the inner cavity of the protective shell, and a servo motor is arranged on the side wall of the protective shell. The present application is supported by the mounting frame, the protective shell is matched with the feeding port and the discharging port to realize the orderly feeding and discharging of materials, the left mounting plate and the right mounting plate in the inner cavity stably support the rotating rod and the rotating drum, the condenser tube in the rotating drum optimizes heat transfer, reduces the heat load per unit heat transfer area, effectively improves the production efficiency, reduces the equipment investment, and solves the problems of low efficiency and high investment of the traditional sheeting machine. The inner fixed ring of the mounting shell and the rotating ring on the rotating rod form a preliminary seal, and the left sealing pad plate and the right sealing pad plate are matched and sealed, so that the leakage of the rotating rod can be avoided to prevent the oxidation of the materials or the leakage of toxic gas, and the sealing problem of the traditional sheeting machine is solved.

The invention discloses nitrocotton alcohol-based solid alcohol automatic forming flaking equipment and method.The nitrocotton alcohol-based solid alcohol automatic forming flaking equipment comprises an alcohol automatic filling device, a chain type mold conveying system is arranged below the alcohol automatic filling device, a plurality of sets of water mist nozzles are arranged above the chain type mold conveying system, a water tank is arranged below the chain type mold conveying system, and a plurality of sets of water mist nozzles are arranged below the water tank; the forming mold located on the lower side of the chain type mold conveying system is immersed below the liquid level of the water tank, a transition conveying belt is arranged on the water surface of the tail end of the water tank, and a soaking pool is arranged below the conveying tail end of the transition conveying belt. The continuous production process of nitrocotton alcohol-based solid alcohol can be achieved, meanwhile, the curing effect of the nitrocotton alcohol-based solid alcohol during soaking and shaping is improved, and the productivity and the quality of solid alcohol tablets are improved.

The invention relates to the technical field of fire extinguishing material preparation, and discloses a multi-capsule type perfluorohexanone microcapsule fire extinguishing material preparation device and material.The multi-capsule type perfluorohexanone microcapsule fire extinguishing material preparation device comprises a water bath kettle and a filling machine, a first conveying pipe is installed on the rear side of the water bath kettle, and the end, away from the water bath kettle, of the first conveying pipe is fixedly connected with a reaction kettle; a water inlet pipe is installed on the front side of the top of the reaction kettle, a second conveying pipe is installed at the bottom of the reaction kettle, and a storage tank is fixedly connected to the end, away from the reaction kettle, of the second conveying pipe. An emulsification method and a normal-temperature polymerization wrapping technology are achieved through cooperation of a water bath kettle and a water inlet pipe, the multi-capsule type perfluorohexanone microcapsules are successfully synthesized, the multi-capsule type perfluorohexanone microcapsules are conveyed into a storage tank through a second conveying pipe to be stored, then filling is completed through a filling head, and the multi-capsule type perfluorohexanone microcapsules are obtained. In the filling process, filling can be achieved through cooperation of the air pipe, the lifting assembly, the regulation and control assembly and the rotating assembly, and manual intervention is reduced.

A high-efficiency short-process production method and production system for carbonized silica is provided. The absorption reaction is completed in a small gas-liquid carbonization reaction kettle at atmospheric pressure, and the absorption is enhanced through high-intensity stirring and gas-liquid interface contact, so that the rapid and continuous reaction of CO2 gas and liquid sodium silicate in the carbonization reaction kettle is realized, and the high-efficiency absorption of carbon dioxide is realized under atmospheric pressure reaction conditions. Carbonization reaction is performed in a small-scale carbonization reaction kettle, and precipitation reaction can be performed in a large-scale precipitation reaction kettle according to the scale. Solid-liquid reaction is performed in the precipitation reaction kettle. By controlling the reaction time, reaction temperature and reaction pH, the fine particles of silicon dioxide generated by the absorption reaction are further aggregated and grown to form silicon dioxide particles with stable structure and reliable performance.

A method for producing a polymer is a method for producing a polymer by a polymerization reaction that occurs in a flow path through which a fluid including three types of raw materials including at least one type of monomer, a ligand, and a metal catalyst flows, the method including: a mixing step of separately feeding one fluid including some of the three types of raw materials and another fluid including remaining one or more of the three types of raw materials into a flow path so as to form, in the flow path, a mixed fluid including the three types of raw materials; and a slug flow formation step of introducing an insoluble fluid that is insoluble in a mixed fluid into a flow path and merging the mixed fluid and the insoluble fluid so as to form a slug flow, in which the slug flow formation step includes controlling the formation of the slug flow such that the mixed fluid and the insoluble fluid are merged within a predetermined time after the mixed fluid is formed.

Disclosed are a method and system for propylene polymerization utilizing a loop slurry reactor. The method can include polymerizing propylene in a loop slurry reactor under bulk polymerization conditions to produce polypropylene. The propylene polymerization system can include i) a loop slurry reactor and a heat exchange system that is configured to cool the legs of the loop slurry reactor and / or ii) an inlet manifold that is configured to connect flashline heaters to a separator.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The present disclosure relates to a plant and process for forming a polymer. In some embodiments, the process for forming a polymer includes providing a feed having one or more olefin monomers and a solvent. The process includes introducing the feed into a reactor together with a catalyst to form a reaction mixture. The process includes removing a reactor effluent from the reactor and mixing the reactor effluent with a first concentrated polymer solution in a mixer or line to form a mixture. The process includes introducing the mixture into a heat exchanger to form a heated mixture, and introducing the heated mixture into a pressure let-down valve followed by introducing the heated mixture into a phase separator. The process includes removing a second concentrated polymer solution from the phase separator. The process includes introducing the second concentrated polymer solution into a mixer or line.

The invention provides a microwave controlled-release asphalt self-healing capsule and a preparation method thereof, and the preparation method comprises the following steps: firstly, adding nano ferroferric oxide into a sodium alginate solution, and carrying out resonance dispersion to form a uniform and stable suspension; adding a low-viscosity asphalt regenerant and an emulsifier into the turbid liquid, and carrying out resonance emulsification to form a uniform emulsion; dropwise adding the emulsion into a calcium chloride solution, and curing and cross-linking to form a wet capsule; finally, the wet capsule is filtered out, washed and dried, and the multi-cavity calcium alginate / ferroferric oxide asphalt self-healing capsule is obtained. Microwave action targets are built on the capsule shell and the wall of the inner cavity, a release diffusion channel is formed through the microwave effect of nano ferroferric oxide, active quantitative release of the asphalt regenerant in the capsule cavity is achieved, the capsule can rapidly release the inner regenerant through excitation of external microwaves in the low-temperature service environment, and the service life of the capsule is prolonged. The crack healing in a low-temperature environment is promoted; the regeneration of the aged asphalt is realized.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

A microfluidics-based nanoparticle synthesis system is provided. The nanoparticle synthesis system comprises: a microfluidic chip (81a); a reagent bottle (1a, 1b) which is connected with the microfluidic chip; and a flow control assembly comprising a pressure controller (10a) which is used for controlling the pressure in the reagent bottle. The system achieves high-accuracy flow control, and a microfluidic chip that can achieve high-efficiency and rapid mixing is also used in combination to finally achieve high-throughput and high-uniformity nanoparticle synthesis. A user may adjust the same instrument as required to achieve different throughputs without redesigning the instrument.

The invention relates to a method for obtaining crystallised foetal bovine serum by adding agmatine that, at a specific concentration, acts to increase cell production and increase protein expression

A process and system for maintaining optimum polymerization production in a loop polymerization reactor by continuously and periodically obtaining polymerization results, such as melt index (MI), production rate and ash content of the polymer produced, determining whether each of the results is within desired ranges, storing and averaging recently obtained results in a database within a reaction rate controller program, and when one of the results is out of the desired range modifying at least one reaction parameter set-point such as monomer concentration, catalyst feed rate and reactor temperature to drive any out-of-range polymerization result(s) toward the desired range for that result.

A method for producing an eco-friendly protective material to provide scour protection for artificial structures in aquatic environments is provided. The method involves depositing natural granular material from the geological region of the structure's environment into a mold and supplying an agent such as a bacterial suspension to initiate cementation. The agent may be selected based on analysis of local material and water samples to determine the most effective agent for cementation. The method results in a protective material that mimics natural beachrock formation, offering an environmentally sustainable solution for scour protection in marine and coastal infrastructure.

The present invention provides a flow reactor that can suppress the adhesion of products to the flow path. [Solution] The flow reactor according to the present disclosure is a flow reactor for mixing a first fluid and a second fluid, comprising: an outer cylinder portion in which a plurality of fluids can flow from the upstream end to the downstream end in the flow direction; a first inner cylinder portion disposed in a part of the interior of the outer cylinder portion and having fluid communication with the outer cylinder portion at a first tip; and a second inner cylinder portion disposed in a part of the interior of the first inner cylinder portion and having fluid communication with the first inner cylinder portion at a second tip, wherein the first fluid flows towards the first tip between the inner wall of the first inner cylinder portion and the outer wall of the second inner cylinder portion, the second fluid flows towards the second tip inside the second inner cylinder portion, and a third fluid having low affinity with the first and second fluids flows towards the downstream end between the outer wall of the first inner cylinder portion and the inner wall of the outer cylinder portion, and, when viewed from a direction perpendicular to the flow direction, the second tip does not protrude further downstream than the first tip, and the first tip is located on the upstream side of the downstream end.

The continuous solution polymerization process according to an exemplary embodiment comprises: producing a product comprising a polymer through a polymerization process in a reactor; separating the product into a first solution comprising the polymer and a second solution comprising the polymer in the liquid-liquid separator; supplying the first solution to a devolatilizer and supplying the second solution separated to a solid-liquid separator (S / L separator); separating the second solution into a vapor comprising the polymer and a liquid-state polymer in the devolatilizer; separating the second solution and the vapor comprising the polymer into a solvent capable of being introduced into the reactor and a solid comprising the polymer in the solid-liquid separator (S / L separator); and introducing and recirculating the solvent capable of being introduced into the reactor into the reactor.

This slurry powder manufacturing device, according to the present invention, comprises: an inlet through which slurry is introduced, the slurry being a solvent-based mixture of an active material, a conductive material, and optionally, a binder; an accommodation unit connected to the inlet and for accommodating the slurry; and an outlet including at least one microchannel protruding in a rectangular parallelepiped shape from the bottom surface of the accommodation unit.

Embodiments of a dual reactor solution polymerization method comprising: introducing a first feed comprising ethylene monomer, optionally hydrogen, optionally C3-C12 alpha-olefin comonomer, and hydrocarbon solvent to a first polymerization reactor to produce via solution polymerization at a temperature from 100 to 225° C. a first reactor product comprising ethylene-based polymer; and introducing the first reactor product and a two-phase second feed comprising ethylene monomer, hydrocarbon solvent, optionally hydrogen, and optionally C3-C12 alpha-olefin comonomer to a second polymerization reactor to produce via solution polymerization ethylene-based polymer, wherein a ratio by weight of the summation of the hydrocarbon solvent plus comonomer to ethylene monomer in the two-phase second feed is from 0.1 to 2.2.

The present disclosure relates to a high-viscosity PETG or PCTG polymerization reactor and a method for polymerizing PETG or PCTG. The polymerization reactor is provided with two shafts in front and rear, the two shafts are respectively provided with a plurality of disc reactors, and the polymerization reactor is divided into a low viscosity zone, a med-high viscosity zone, and a high viscosity zone; the disc reactors in the high viscosity zone are single discs that can be quickly disassembled; a plurality of scrapers is further arranged on a wall of the polymerization reactor between each two adjacent single discs in the high viscosity zone, the distance between each scraper and the adjacent single disc is different, which can gradually reduce the thickness of the high-viscosity melt on the discs, improve the devolatilization efficiency. The polymerization reactor can prepare PETG or PCTG with high viscosity and excellent hue performance.