108results 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 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 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.

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.

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.

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.

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.

To provide a continuous polymerization apparatus and a continuous polymerization method for producing polyamide by using a dibasic acid and a diamine.SOLUTION: The continuous polymerization apparatus includes an evaporator 1, a reaction rectifying column 2, a flash evaporator 3, and a polymerizer 4, which are sequentially connected by piping. In a tray section of the reaction rectifying column, the number of trays is 15 to 30, an interval between adjacent trays is 400 mm to 600 mm, and a height of an overflow weir of each tray is 50 mm to 300 mm. The continuous polymerization apparatus further includes a preheating heat exchanger 6 and a prepolymerization heat exchanger 7, and the prepolymerization heat exchanger and a tower bottom are connected in a circulating manner via piping. Consequently, a raw material can sequentially enter, through the trays, the preheating heat exchanger, the prepolymerization heat exchanger, and the tower bottom, and can circulate and flow between the prepolymerization heat exchanger and the tower bottom.SELECTED DRAWING: Figure 1

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 utility model discloses a road liquid adding device which is applied to the field of road construction and comprises a mixing cavity, a feeding mechanism is arranged on the upper surface of the mixing cavity, a stirring mechanism is arranged in the mixing cavity, and the cross section of the lower portion of the mixing cavity is semicircular. Firstly, ardealite and a road curing agent in a certain proportion are added into an ardealite bin and a road curing agent bin respectively, when mixing is needed, an electromagnetic on-off valve is opened, the ardealite enters a mixing cavity, then an electric control spray head is opened, the road curing agent in the road curing agent bin passes through a conveying pipe, a transverse pipe and the electric control spray head, and the ardealite and the road curing agent are mixed. The road curing agent is uniformly sprayed into the mixing cavity to be mixed with ardealite, and the road curing agent can further uniformly enter the mixing cavity through a plurality of electric control sprayers.

The invention discloses a post-treatment system for polysulfone polymer liquid, and relates to the technical field of polysulfone production equipment. The polysulfone polymer liquid post-treatment system comprises a kettle body, a hopper, a crushing pump and a washing liquid circulating device, a first liquid inlet and a material return port are formed in the upper part of the kettle body, a liquid outlet channel, a washing liquid inlet and a first liquid outlet are formed in the bottom of the kettle body, an eluent outlet is formed in the top of the kettle body, and a first porous plate is arranged at the lower part in the kettle body; a second perforated plate capable of moving up and down is arranged at the upper part; the middle part of the hopper is communicated with the liquid outlet channel, the upper part of the hopper is provided with a feed port, and the lower part is provided with a discharge port; the feeding end of the smashing pump is connected with the discharging port, and the discharging end of the smashing pump is connected with the material returning port. According to the technical scheme provided by the invention, integrated operation of curing, crushing, gathering and washing of the polysulfone polymer liquid can be realized, the problem of low production efficiency caused by material transfer is effectively avoided, and repeated utilization of ethanol can also be realized.

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.