173results about "Chemical liquid solidification" patented technology

A process is provided for transferring a product from a first polymerization zone (101) to a second polymerization zone (301) arranged in series with the first polymerization zone (101). The process comprises: discharging a product of the first polymerization zone (101) from the first polymerization zone (101); separating the product into a gas phase comprising any unreacted monomer and gaseous agent used in the first polymerization zone (101), and a solid phase comprising a polymerization product; and transferring the solid phase to the second polymerization zone (301) via at least one of a first transfer vessel (202) and a second transfer vessel (203) arranged in parallel to each other and in selective communication with each other, wherein the at least one of the first transfer vessel (202) and second transfer vessel (203) is further in selective communication with the second polymerization zone (301), and the second polymerization zone (301) is a gas-phase polymerization zone.

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 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 provides a liquid drop continuous generation device which comprises a first flow channel and a second flow channel, the first flow channel and the second flow channel comprise first positions which are tightly attached to each other, and each first position comprises a through hole communicating with the first flow channel and the second flow channel; the first flow channel and the second flow channel are used for introducing a first liquid and a second liquid respectively; the special ultrasonic device can act on the first liquid in the first flow channel, when the special ultrasonic device is driven in a first power period, an acoustic beam current facing the through hole is generated in the first liquid, the acoustic beam current enters the second liquid through the through hole, and liquid drops formed by the first liquid are formed in the second liquid. The invention also correspondingly provides a method for continuously generating liquid drops. The liquid drop generation mode is more flexible, the controllability is higher, and the cost is lower.

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 provides a ceramic powder and base membrane dispersed diaphragm preparation process, a ceramic diaphragm and equipment thereof. The preparation process of the diaphragm with dispersed ceramic powder and base membrane comprises the following steps: obtaining the ceramic powder; introducing an air source into the ceramic powder, wherein the flow velocity of the air source is 80 sccm to 100 sccm; the gas source is subjected to plasma treatment, modified ceramic powder is obtained, the plasma power source power ranges from 400 W to 800 W, the discharge voltage ranges from 700 V to 1000 V, the discharge current ranges from 0.5 A to 3 A, and the temperature ranges from 80 DEG C to 150 DEG C; an adhesive, a dispersing agent and the modified ceramic powder are mixed in a solvent to obtain modified ceramic powder coating slurry, and the ratio of the adhesive to the modified ceramic powder to the dispersing agent is 5: (93-94): (1-2); and coating a base membrane with the modified ceramic powder coating slurry to obtain the modified ceramic powder composite diaphragm.

Embodiments of a dual reactor solution polymerization process include: introducing a first feed comprising an ethylene monomer, optionally hydrogen, optionally a C3-C12 alpha-olefin comonomer, and a hydrocarbon solvent into a first polymerization reactor to produce a first reactor product comprising an ethylene-based polymer via solution polymerization at a temperature of 100 DEG C to 225 DEG C; and introducing the first reactor product and a two-phase second feed comprising an ethylene monomer, a hydrocarbon solvent, optionally hydrogen, and optionally a C3-C12 alpha-olefin comonomer to a second polymerization reactor to produce an ethylene-based polymer via solution polymerization, wherein the weight ratio of the sum of hydrocarbon solvent plus comonomer in the two-phase second feed to ethylene monomer is 0.1 to 2.0.

The invention discloses a core-shell microsphere device and a microsphere manufacturing method, and relates to the technical field of biological medicines.The core-shell microsphere device comprises a propelling assembly, a mixing assembly and a light curing assembly.The propelling assembly comprises a first propeller, a second propeller and a third propeller which are used for extruding a core material, a core-shell material and a protective material respectively; a power device of the propelling assembly pushes an injector in a screw transmission mode to continuously extrude materials, so that the efficiency and the control precision are improved; the first propeller, the second propeller and the third propeller inject different materials into the mixing device, so that the three materials are sequentially coated, and the core-shell material and the protective material are sequentially coated outside the core material to form a finished product; the light curing assembly comprises a containing plate and a light source, a spirally-arranged curing channel is formed in the containing plate, the main pipe communicates with the curing channel, the light source can irradiate finished products located in the curing channel to achieve the curing function, and the control module is electrically connected with the propelling assembly and the mixing assembly.

Equipment for automatic polymerization of polycondensation polymers and other polyurethane systems and method showing equipment (E) capable of mixing inputs in a controlled manner with regard to quantities, temperatures, stirring / mixing and reaction times, resulting in polymers for different purposes, including polycondensation polymers and polyurethanes, and also an operation method of said equipment (E) with regard to programming and execution of recipes.

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 present disclosure provides a ceramic powder and base film dispersed diaphragm preparation process, a ceramic diaphragm and equipment thereof. The ceramic powder and base film dispersed diaphragm preparation process comprises the following steps: obtaining a ceramic powder; introducing a gas source into the ceramic powder, the flow rate of the gas source being 80-100 sccm; performing plasma treatment on the gas source to obtain a modified ceramic powder, wherein the plasma power is 400-800 W, the discharge voltage is 700-1000 V, the discharge current is 0.5-3 A, and the temperature is 80-150 DEG C; mixing a binder, a dispersant and the modified ceramic powder in a solvent to obtain a modified ceramic powder coating slurry, the ratio of the binder, the modified ceramic powder and the dispersant being 5:93-94:1-2; and coating the modified ceramic powder coating slurry on a base film to obtain a modified ceramic powder composite diaphragm.

Methods and systems for producing cement binder without wall packing or interfacial transition zones are provided. A metal hydroxide is reacted with a silicate to produce a silicate precursor. The silicate precursor is then mixed with aluminosilicate material which forms a condensation reaction directly in the solution, resulting in a binder that does not rely on a surface-alone reaction.

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 provides a flushing process for removing polymer fouling from a reactor including a gas distributor proximal to the bottom thereof and an internal condenser proximal to the top thereof, the method including, for a first flushing time period, injecting a flushing solvent into the reactor and withdrawing the flushing solvent from a reactor outlet proximal to the internal condenser to induce an upward movement of flushing solvent, the withdrawn flushing solvent containing a first polymer content. After the first flushing time period is complete, for a second flushing time period, the process includes injecting a flushing solvent into the reactor and withdrawing the flushing solvent from a reactor outlet proximal to the gas distributor to induce a downward movement of flushing solvent, the withdrawn flushing solvent containing a second polymer content.

Provided are a method for producing a polymer in which the composition or molecular weight of structural units is highly controlled in addition to high purity, and a device for producing a polymer. A method for producing a polymer, which obtains a polymer by radical polymerization in the coexistence of an azo polymerization initiator, two or more types of monomers, and a solvent, the method comprising a first step for radical polymerization in a tubular reactor, and a second step for radical polymerization in the tubular reactor, performing the radical polymerization in a stirred tank reactor after the first step; the maximum solid content concentration (C1max) on a mass basis in the first step is 30 mass% or more, the maximum solid content concentration (C2max) on a mass basis in the second step is less than 50 mass%, and the maximum solid content concentration (C1max) and the maximum solid content concentration (C2max) satisfy C1max > = C2max.

[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 utility model relates to the technical field of bird repellent preparation equipment, and discloses a condensation curing device for bird repellent processing, which comprises a condensation curing box shell, the two sides of the condensation curing box shell are fixedly connected with water storage tanks, a spiral pipe is arranged in the condensation curing box shell, and the spiral pipe is fixedly connected with the condensation curing box shell. And meanwhile, blades are movably connected into the water storage tank in a sleeved mode, and an inner container is movably connected into the condensation curing box shell in a sleeved mode. According to the condensation and solidification device for bird repellent processing, spiral pipes are evenly installed outside a shell of the condensation and solidification box, the multiple sets of spiral pipes communicate with a water storage box, meanwhile, blades are arranged in the water storage box, after a condensation pipeline drives liquid to be injected into the water storage box, condensate can push the blades to rotate, and in the blade rotating process, the blades are not prone to falling off. And uniform circulation of the liquid in the water storage tank is improved, that is, the liquid is uniformly conveyed into the spiral pipe, so that the temperature uniformity is ensured when the outer part of the condensation curing box shell is condensed.

A continuous solution polymerization process may include producing a product including a polymer through a polymerization process in a reactor; separating the product into a first solution including the polymer and a second solution including the polymer in the liquid-liquid separator; supplying the first solution to a devolatilizer and supplying the second solution to a solid-liquid separator (S / L separator); separating the second solution into a vapor including the polymer and a liquid-state polymer in the devolatilizer; separating the second solution and the vapor including the polymer into a solvent capable of being introduced into the reactor and a solid including 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.

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 invention relates to the technical field of micro-nano robot preparation, and specifically to a micro-nano robot with sensing functions and a preparation method thereof. The preparation method comprises: step 1: adding copper sulfate pentahydrate particles to a resin, stirring, then adding a silane coupling agent, and stirring evenly to obtain an inner phase solution for preparing the micro-nano robot; step 2: adding polyvinyl pyrrolidone and sodium lauryl sulfate to deionized water, stirring evenly, to obtain an outer phase solution for preparing the micro-nano robot; step 3: utilizing microfluidic droplet forming technology, utilizing the solutions obtained in steps 1 and 2 as the inner and outer phases, respectively, adjusting the flow rates of the inner and outer phases, controlling the size of the droplets after forming, and curing with an ultraviolet lamp to obtain micro-nano robot substrate microspheres with a core-shell structure; and step 4: placing the micro-nano robot substrate microspheres obtained in step 3 into a magnetron sputtering instrument, and nickel-plating them under vacuum to obtain a micro-nano robot with sensing functions.

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.

The utility model relates to the technical field of purification devices, and discloses a methyl palmitate multiple purification device for biodiesel, which comprises an equipment bottom plate, the upper surface of the equipment bottom plate is fixedly connected with a purification box, and the inner wall of the purification box is fixedly connected with a bracket, a driving motor, a stirring structure and a heater. The methyl palmitate filtering device is reasonable in structure, methyl palmitate is melted through the heater, the methyl palmitate can be filtered through the upper-layer filter plate, the melted methyl palmitate flows into the upper surface of the lower-layer filter plate, impurities contained in the methyl palmitate are purified and filtered for multiple times, and the purity of the methyl palmitate is improved. A pressing plate moves downwards to flatten methyl palmitate through a lifting hydraulic rod, the methyl palmitate is cooled through a refrigeration plate to be shaped, the methyl palmitate can be quantitatively and uniformly discharged through an electromagnetic valve, the methyl palmitate is cooled and shaped, and a push plate moves rightwards through a collecting hydraulic rod, so that the methyl palmitate is uniformly discharged. Methyl palmitate needs to be manually collected after being purified and shaped, and time and labor are wasted.

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.

A solvent removing apparatus includes a container accommodating an emulsion including a first raw material in a continuous phase and a second raw material in a dispersed phase, a filter unit connected to the inside of the container, receiving the emulsion from the container, filtering a portion of the continuous phase of the emulsion and the solvent in the continuous phase, and then supplying the remaining emulsion back to the container, a supply unit connected to the inside of the container and supplying the first raw material to the inside of the container, and a stirring device for stirring the emulsion in the container by generating a flow.

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 utility model discloses an internal rotation type dripping forming machine which comprises a heat preservation shell, a heat preservation cover, a heat preservation cover and a heat preservation cover, and a dripping hole is formed in the bottom of the heat preservation shell; the inner rotating shaft is arranged in the heat preservation shell, a plurality of flow guide grooves are formed in the circumferential surface of the inner rotating shaft, and the flow guide grooves are formed in the length direction of the inner rotating shaft; the feeding pipe penetrates through the heat preservation shell and communicates with the multiple flow guide grooves in the inner rotating shaft, and the feeding pipe inputs molten materials into the flow guide grooves; the driving piece is connected with the inner rotating shaft; the driving part drives the inner rotating shaft to rotate and drives the multiple flow guide grooves to communicate with the dripping holes in sequence, and the dripping holes output molten materials to the outside in a dripping mode. According to the utility model, the operation safety is greatly improved, and the accidental injury risk in the production process is greatly reduced; a transmission mechanism is simplified, and the production and maintenance cost is reduced; and the precise inner rotating shaft is matched with the dripping hole, so that the manufacturing precision and consistency of the product are ensured.

A method of manufacturing a triple capsule includes supplying an interior material, an intermediate film material, and an exterior film material; discharging a triple molding body by receiving the interior material, the intermediate film material, and the exterior film material through a nozzle mount and performing coextrusion on the interior material, the intermediate film material, and the exterior film material through a triple nozzle in which a first nozzle discharging the interior material, a second nozzle discharging the intermediate film material, and a third nozzle discharging the exterior film material are arranged concentrically; and forming the triple capsule by circulating a coolant and cooling the triple molding body.