9results about How to "For subsequent separation" patented technology

The utility model discloses a waste water treatment device for aluminum profile production, which relates to the technical field of waste water treatment, and adopts the technical scheme that the waste water treatment device comprises a device base, a waste water treatment tank and a precipitation separation device, the waste water treatment tank is fixedly arranged outside the device base, and the precipitation separation device is movably arranged inside the waste water treatment tank; a conical collecting disc is fixedly installed on the inner wall of the waste water treatment tank, and a rapid precipitation separation assembly is fixedly installed outside the conical collecting disc. By accelerating the fusion of the precipitant and quickly salvaging the precipitate and the floating object, the wastewater can be quickly treated and purified, the pollution to the environment can be effectively reduced by quickly treating and purifying the wastewater, the adverse effect of the wastewater on the water body, soil and air is reduced, and the health of an ecological system is protected.

The invention discloses a preparation method of ethylhexyl palmitate, and relates to the technical field of ethylhexyl palmitate. According to the method, firstly, isooctanol is gasified and then introduced into a methyl palmitate solution, ethylhexyl palmitate is prepared through transesterification, gaseous feeding can improve the instantaneous concentration of alcohol in a liquid phase, the reaction is promoted to be carried out in the positive direction, the reaction rate is increased, meanwhile, methanol generated through the transesterification method can be gasified and taken out of a system, and the yield of ethylhexyl palmitate is increased. Forward proceeding of the reaction is further promoted, so that the reaction is more thorough; secondly, chromium salt is used as a metal source precursor and a 2-sulfo-4, 4 '-biphenyldicarboxylic acid ligand to synthesize a catalyst, a biphenyl group in the ligand provides rigid and hydrophobic large pore channels and provides a local high-concentration reaction environment, gaseous isooctanol can be easily diffused into the pore channels of the catalyst and is in contact with enriched methyl palmitate, and the reaction efficiency is improved; and sulfonic acid groups uniformly distributed in the ligand serve as solid superacid, strong acid sites are provided, and the production efficiency is improved.

The invention discloses a Cr-V system out-of-plane ordered double transition metal MAX phase material and a preparation method thereof, and belongs to the technical field of MAX phase materials.The preparation method comprises the steps that Cr2AlC powder and VC powder are mixed and ground to obtain mixed slurry, the mixed slurry is dried to obtain mixed powder, the mixed powder is subjected to cold press molding and then heated and calcined, and after the mixed powder is cooled to the room temperature, the Cr-V system out-of-plane ordered double transition metal MAX phase material is obtained; the Cr-V system out-of-plane ordered double-transition metal MAX phase material is obtained; the chemical formula of the Cr-V system out-of-plane ordered double transition metal MAX phase material is Cr2VAlC2 or Cr2V2AlC3, and the chemical formula of the Cr-V system out-of-plane ordered double transition metal MAX The mass fraction of the obtained Cr2VAlC2 is 74.9%, and the mass fraction of the obtained Cr2V2AlC3 is 90.1%. And the high-purity Cr2V2AlC3 material with the single MAX phase is prepared for the first time. The material can be further applied to the fields of electromagnetic wave absorption, electric contactors and the like, in the future, the two-dimensional out-of-plane ordered double-transition metal MXene material Cr2V2C3 can be further prepared through etching, and the application of the material in the related fields of energy storage, catalysis and the like is explored.

The invention relates to the field of cable recycling, in particular to a control cable stripping method based on machine vision. Comprising a workbench, a clamping and cutting assembly, a separating roller, a motor I, a separating plate, a pulling assembly and the like. The workbench is connected with a clamping and cutting assembly. The workbench is provided with a connecting frame, and the connecting frame is rotationally connected with a separating roller. The workbench is connected with a pulling assembly. The pulling assembly is connected with a motor I, and an output shaft of the motor I is fixedly connected with the separating roller; and the separating roller is fixedly connected with a separating plate. According to the cable pre-separation device, the cutting groove part is prevented from continuing to move upwards through the groove in the separation plate, so that an insulating layer is prevented from moving upwards, the inner cable core is continuously extruded through the extrusion wheel, the cable core is extruded out of the insulating layer, the parts of all the cable core are exposed in the cutting groove part, and therefore the cable is pre-separated; and subsequent separation of the insulating layer of the cable core box is facilitated.

This invention belongs to the technical field of blower air duct technology, and specifically relates to a wastewater purification device. The technical solution is as follows: A wastewater purification device includes a wastewater treatment tank, a wastewater collection pool at the bottom of the wastewater treatment tank, and a wastewater treatment vessel mounted on the upper side of the wastewater collection pool. The wastewater treatment vessel includes, from top to bottom, an ultrasonic flocculation unit, a multi-layer centrifugal separation unit, an electric field-assisted separation unit, a nanomaterial filtration unit, and an effluent collection unit. A pumping pipe connects the bottom of the wastewater collection pool to the ultrasonic flocculation unit. This invention provides a wastewater purification device that can fully purify the wastewater generated during the cleaning of the air purification unit in the air duct of an air blower, avoiding direct discharge that could impact water bodies, soil, and the surrounding ecological environment.

The application discloses an interlayer ordered double transition metal MAX phase material and a preparation method thereof, and comprises the following steps: grinding Mo, V, Al and C element powders to obtain mixed powders; tabletting the mixed powders, performing calcination treatment, and cooling to room temperature to obtain the interlayer ordered double transition metal MAX phase Mo2VAlC2 material. Compared with other discharge plasma sintering or microwave sintering processes in a laboratory, the preparation method is simple, efficient, easy to obtain raw materials and low in cost, and can be further scaled up for industrial production. In addition, the interlayer ordered double transition metal MAX phase Mo2VAlC2 prepared by the application is simple and easy to obtain in terms of raw materials and equipment, and the purity of the obtained product is considerable. In the crystal structure, Mo atoms and V atoms are highly ordered to occupy outer transition metal layers and inner transition metal layers, respectively, and the highly ordered atomic occupation can bring about the regulation potential of physical and chemical properties.

The application discloses a process method for producing gamma-cyclodextrin by taking ethanol and phenyl-substituted borate as a production aid, and belongs to the technical field of cyclodextrin production. The application uses gamma-cyclodextrin glucosyltransferase, takes starch as a substrate, and supplements an ethanol solution of phenyl-substituted borate as a production aid, so that the yield of gamma-cyclodextrin and the proportion of the product are significantly improved. The method is safe and efficient, and can be applied to the production of food and medicine. By using the method, the total conversion rate of gamma-cyclodextrin can reach about 54.14%, and the proportion of gamma-cyclodextrin can be up to 83.07%.

The invention belongs to the technical field of preparation of photoinitiators, and particularly relates to a preparation method of an oxime ester photoinitiator OXE-02, which comprises the following steps: (1) firstly reacting a compound in a formula I-1 with methyl o-toluate, and further reacting a reaction product with methyl acetate to obtain a compound in a formula I-2; and (2) firstly reacting the compound shown in the formula I-2 with hydroxylamine hydrochloride, and further reacting the reaction product with methyl acetate to obtain the photoinitiator OXE-02 shown in the formula I-3. The preparation method is simple in process steps and convenient to separate and purify, the yield of the prepared photoinitiator OXE-02 can reach 80% or above, the purity can reach 99.0% or above, and meanwhile the preparation method is low in cost and environmentally friendly. # imgabs0 #

The invention belongs to the technical field of blower air galleries, and particularly relates to a complete blower air gallery system. The system comprises a gallery device, a cleaning device and a sewage purification device, the gallery device comprises an air gallery body, the side face of the gallery device is connected with a plurality of air blowers, a plurality of variable-angle guide vanes are installed in the gallery device, and an air inlet is provided with an air purification unit and a variable-section unit; the cleaning device comprises a cleaning box body, a sliding rail is arranged on the inner wall of one side of the cleaning box body, and a flushing device is installed in the cleaning box body; the sewage purification device comprises a sewage treatment tank body, wherein the sewage treatment tank body in the sewage treatment tank body comprises an ultrasonic flocculation unit, a multi-layer centrifugal separation unit, an electric field auxiliary separation unit, a nano material filtering unit and an effluent collection unit which are arranged in sequence. According to the air gallery system of the complete set of air blowers, the air pressure can be stabilized, the filtering efficiency can be improved, the air purification units can be fully flushed, and sewage can be purified.