15results about How to "Resolve separation difficulties" patented technology

The invention provides a method for recovering lithium and iron in a lithium iron phosphate positive plate. The recovery method comprises the following steps: soaking and drying a lithium iron phosphate positive plate disassembled from the battery to remove electrolyte on the surface; the method comprises the following steps: cutting a lithium iron phosphate positive plate as a cathode end of an electro-Fenton electrolysis system, taking a graphite plate as an anode end, taking a sodium sulfate solution as an electrolyte, and introducing oxygen to carry out an electrolytic reaction until powder is completely stripped from a current collector and enters the electrolyte so as to obtain a leachate containing Li < + >, PO4 < 3-> and Fe < 3 + >; acid is added into the leachate for a precipitation reaction, and iron phosphate precipitate and Li < + >-containing filtrate are obtained; adding alkali into the Li < + >-containing filtrate until a lithium-containing precipitate is completely generated; and drying the iron phosphate precipitate and the lithium-containing precipitate. The recovery method not only can effectively realize recovery of valuable metals such as lithium and iron, but also does not need to crush the positive electrode current collector in the whole process, does not generate scraps, can realize lossless recovery of the positive electrode current collector, and is green, environment-friendly and low in use cost.

The invention discloses Sudan type lithium-sodium separation resin and a preparation method and application thereof, and belongs to the technical field of resin materials. According to the invention, chloromethylation is carried out by using resin white balls, and then a lithium selective functional group is grafted, so that the high-selectivity Sudan type lithium-sodium separation resin is finally obtained. By introducing the Sudan-type lithium ion selective functional group, lithium ions in the solution can be adsorbed with high selectivity in the presence of high-concentration impurity ions, and the problem that the lithium ions are difficult to separate from the impurity ions such as sodium ions, potassium ions and magnesium ions in the salt lake lithium extraction process is solved.

The utility model provides a novel orthodontic positioner which comprises a plurality of orthodontic positioner bodies arranged in an arrayed mode, and the adjacent orthodontic positioner bodies are connected through connecting pieces. The orthodontic positioner body comprises: a jaw pad, wherein one side of the jaw pad in the first direction is provided with a first limiting convex part; the clamping seat is arranged at one end, far away from the first limiting convex part, of the jaw pad in the first direction; the jaw pad and the clamping seat are oppositely arranged, a containing groove is formed in one side of the clamping seat, an opening of the containing groove faces the first limiting convex part, the limiting convex part, the jaw pad and the clamping seat are enclosed to form a fixing groove, a through receding hole is formed in the position, close to the fixing groove, of the jaw pad, and a positioning block is detachably connected to the receding hole. The detachably connected positioning block assists the orthodontic positioner body to be positioned on teeth, and the positioning block is taken out after positioning is completed, so that the avoiding hole forms an overflow space for an adhesive on the bracket. And the phenomenon that the orthodontic positioner body and the bracket are bonded by the overflowing adhesive is avoided.

The invention discloses a preparation method of a composite catalyst for synthesizing 1, 4-butynediol, and relates to the technical field of BDO synthesis, the preparation method comprises the following steps: preparing a solution A from active metal salts of copper and zirconium, preparing a solution B from active metal salts of copper, bismuth and magnesium, and dissolving a precipitator in deionized water to prepare a solution C; synchronously dropwise adding the solution A and the solution C into a buffer solution at a constant speed to form slurry D; then the solution B and the solution C are dropwise added into the slurry D synchronously at a constant speed to form slurry E, and the slurry E is continuously subjected to a reaction or a hydrothermal reaction; and aging, filtering, washing and drying after the reaction is completed to obtain the catalyst. The composite catalyst prepared by the method is large and uniform in particle size, is beneficial to solid-liquid separation, shows relatively high activity and selectivity, and is mainly applied to the field of catalytic reaction for preparing 1, 4-butynediol.

This invention relates to the field of plastic bottle manufacturing technology, specifically to a plastic bottle with a built-in identification chip, a manufacturing apparatus, and a manufacturing method. The plastic bottle includes a bottle body and a cap. The cap includes a first injection molding block and a second injection molding block. The first injection molding block has a threaded portion, a removable portion with an easy-tear edge, and a top cover portion. The top cover portion has a mounting groove for placing the chip. The second injection molding block seals the mounting groove, thereby securely encapsulating the chip. The manufacturing apparatus includes mold A and mold B arranged opposite each other. Through the coordinated action of the first pushing portion, the second pushing portion, and the adjusting component in the molds, after the bottle cap body with the mounting groove is formed by the first mold closing injection molding, the chip is placed in. During the second mold closing injection molding, the mounting groove is isolated by the blocking portion, and the second injection molding block is formed. This achieves non-adhesive encapsulation of the chip and the plastic bottle cap, thereby facilitating the effective separation of the plastic bottle cap and the chip, and reducing the difficulty and cost of recycling the plastic bottle cap.

This invention proposes a shrimp processing machine and its control method. The processing machine includes a frame and a primary conveying mechanism. The primary conveying mechanism is placed at the lower part of the frame and includes a conveyor belt with a shrimp-collecting trough on it. A secondary annular conveying mechanism is fixedly installed in the middle of the frame and includes a first gripper mechanism and a second gripper mechanism. The secondary annular conveying mechanism is installed at the upper rear end of the conveyor belt. A pressing mechanism and a V-shaped back-opening mechanism are also fixedly installed on one side of the frame, and a meat-removing mechanism is fixedly installed on the other side of the frame. A cleaning mechanism is fixedly installed on the upper part of the frame. A vision and angle recognition module is also installed on the frame and electrically connected to the control module. A central turntable driven by a six-slot wheel is used as the core transmission to integrate head removal, gripping, back-opening, cleaning, meat removal, and collection into a continuous processing system.

This utility model discloses an environmentally friendly anti-static PET blister tray, including a blister tray body and a tray cover. The blister tray body includes a blister tray main body with an auxiliary groove in the middle. Four product receiving slots are evenly arranged on the outer side of the blister tray main body outside the auxiliary groove. A first edge is provided on the top edge of the blister tray main body, and a lever is provided at at least one corner of the first edge. A first buckle is provided at the top of the first edge. A second edge is provided on the bottom edge of the tray cover, and a second buckle is provided at the bottom of the second edge to cooperate with the first buckle. The width of the first edge is smaller than the width of the second edge, and the width of the lever is larger than the width of the second edge. In this utility model, pressing down the lever opens the first and second edges, thus facilitating the separation of the tray cover from the blister tray body 1 and solving the problem of difficult separation in traditional methods.

The utility model discloses a high-performance well completion hanger, which relates to the technical field of well completion hangers and comprises an alloy pipe body, a plurality of sealing rubber rings are sleeved on the alloy pipe body, a sleeve is mounted at the lower end of the alloy pipe body, and a well cementation accessory is sleeved at the lower end of the sleeve. The anchoring and sealing effects are achieved after the pipe body is expanded and extruded, the problems that anchoring is not stable and the sealing effect is poor are solved, and the anchoring reliability and sealing performance of the hanger are improved. The T-shaped fixing block is matched with the central pipe and the tail pipe rubber plug, so that the tail pipe rubber plug and the central pipe are connected and are disconnected and separated after being pressed, the problem that the tail pipe rubber plug and the central pipe are difficult to separate is solved, and the convenience of component separation in the construction process is improved.

The utility model provides a plant culture device, particularly relates to the technical field of plant culture, and is used for solving the technical problems that an existing temporary immersed bioreactor is relatively complicated in design and needs to occupy a relatively large space. The device comprises a liquid containing bottle and a plant culture bottle, a bottle opening of the liquid containing bottle and a bottle opening of the plant culture bottle are connected to the two ends of a two-way connecting sleeve in a threaded mode, and a sealing elastic ring is fixedly connected to the inner side of the two-way connecting sleeve in a sleeved mode. The diameter of the sealing elastic ring is matched with the bottle opening of the liquid containing bottle and the bottle opening of the plant culture bottle. The utility model provides a temporary immersed bioreactor which is small in occupied space, simple in structure and easy to use.

The invention relates to the technical field of photocatalysis, in particular to a thiophene modified ferriporphyrin polymer as well as a preparation method and photocatalysis application thereof. The invention discloses a thiophene modified iron porphyrin polymer which comprises the following raw materials: iron thienyl porphyrin, mesoporous graphite phase carbon nitride and an auxiliary agent, and the weight ratio of the iron thienyl porphyrin to the mesoporous graphite phase carbon nitride to the auxiliary agent is (1-1.2): 100: (3-4). According to the thiophene-modified ferriporphyrin polymer disclosed by the invention, polythiophene porphyrin is loaded on the surface of mesoporous graphite-phase carbon nitride through an in-situ chemical polymerization method, so that the problem that a current molecular catalyst is unstable is solved; the thiophene modified ferriporphyrin polymer is used as a photocatalyst, under the excitation of visible light (lambda = 420 nm), carbon dioxide can be catalytically reduced into carbon monoxide, 120-hour ultra-long-time stable catalysis can be achieved, the selectivity of the product carbon monoxide reaches up to 98%, and the problem that the product is difficult to separate is solved.

The invention discloses a short-process smelting method of high-titanium and high-vanadium type vanadium titano-magnetite, and relates to the technical field of ferrous metallurgy. The short-process smelting method comprises the steps that high-titanium and high-vanadium type vanadium titano-magnetite metallized pellets are placed in an electric furnace, the alkalinity and the carbon content are adjusted, the deep reduction and melting separation process is carried out, and vanadium-containing molten iron and titanium-containing slag are obtained; wherein the melting and separating temperature ranges from 1600 DEG C to 1620 DEG C, the melting and separating time ranges from 10 min to 14 min, the basicity of the slag ranges from 0.60 to 0.80, and the carbon blending ratio ranges from 0.60 to 0.70. By optimizing the smelting system of electric furnace melting separation, the contradiction between efficient reduction recovery of the vanadium element and inhibition of over-reduction of the titanium element to maintain good slag fluidity is balanced, and it is guaranteed that the recovery rate of valuable components in the electric furnace melting separation process is synergistically increased; the problem that slag and iron are difficult to separate in the electric furnace melting separation process of the high-titanium and high-vanadium type vanadium titano-magnetite is effectively solved, so that the electric furnace melting separation process is efficiently, stably and smoothly carried out.

The utility model relates to an isobutyraldehyde separation and purification system which comprises an n-isobutyraldehyde separation tower, an isobutyraldehyde qualified product tank, a mixed butyraldehyde tank, an isobutyraldehyde refining tower and the like, a side-draw pipeline at the upper part of the n-isobutyraldehyde separation tower is connected with the mixed butyraldehyde tank, and the mixed butyraldehyde tank is connected with a pump inlet of the mixed butyraldehyde tank; an outlet pipeline of the mixed butyraldehyde pump is connected with a feeding hole of the isobutyraldehyde refining tower; a gas phase pipeline at the top of the isobutyraldehyde refining tower is connected with the cooler, a lower liquid pipeline of the cooler is connected with the top of the reflux tank, a lower liquid pipeline of the reflux tank is connected with an inlet of the reflux pump, one end of an outlet pipeline of the reflux pump is connected with an isobutyraldehyde qualified product tank, and the other end of the outlet pipeline of the reflux pump is connected with a reflux pipeline of the isobutyraldehyde refining tower. And a discharging pipeline of the tower kettle pump leads to a feeding pipeline of the n-isobutyraldehyde separation tower. According to the n-isobutyraldehyde separation tower, the problem of incomplete separation of the existing n-isobutyraldehyde separation tower is solved, mixed aldehyde containing 80% of isobutyraldehyde extracted from the original tower top is separated into high-quality products containing 99.7% of isobutyraldehyde, and the investment is saved.

The invention belongs to the technical field of detection of morphological sulfur and morphological mercury in coal, and provides a method for synchronously analyzing occurrence forms of sulfur and mercury in coal containing fine-grained pyrite. The method comprises the following steps: sequentially adding a magnesium chloride solution, a hydrogen chloride solution and a hydrogen fluoride solution into a coal sample S0, stirring, carrying out suction filtration, drying to respectively obtain residues S1, S2 and S3, carrying out plasma low-temperature ashing on the residue S3 to obtain low-temperature ash SP, respectively determining the contents of sulfur and mercury in the coal sample, the residues and the low-temperature ash, and determining the content of mercury in the coal sample, the residues and the low-temperature ash. The sulfur content and the mercury content in different occurrence forms in the coal are obtained through step-by-step subtraction. According to the method, plasma low-temperature ashing is carried out on the residue S3 only containing organic matter and sulfide minerals, and fine-grained pyrite and organic matter in coal are effectively separated; the sulfur content and the mercury content in different occurrence forms in the coal are synchronously analyzed by adopting a step-by-step chemical extraction and plasma low-temperature ashing combined technology, and errors caused by different sulfur and mercury analysis methods are effectively reduced.

The present invention provides a method for recovering tungsten and molybdenum from tungsten smelting molybdenum removal slag, and relates to the field of comprehensive utilization of tungsten and molybdenum waste. The present invention provides a method for recovering tungsten and molybdenum from tungsten smelting molybdenum removal slag, comprising the following steps: oxidative roasting the molybdenum removal slag to obtain oxidized molybdenum removal slag; mixing the oxidized molybdenum removal slag with a reducing agent, a slag forming agent, and an iron source, and then reducing and smelting to obtain a tungsten-molybdenum-iron alloy. The recovery method of the present invention is suitable for recovering tungsten and molybdenum from molybdenum removal slag, and the recovery rate of tungsten and molybdenum is more than 95%.

The utility model provides a device for uric acid separation in saliva belongs to biological detection and analytical chemistry technical field. The utility model relates to a device for uric acid separation in saliva, including empty cylinder, teat, piston rod and the piston of installation in the end of piston rod, the piston is arranged in the inner wall of empty cylinder and slides, the upper end portion fixed mounting piston handle of piston rod, its characterized in that, still include wooden porous channel, wooden porous channel fixed mounting in empty cylinder inside, be located below the piston. The utility model device utilizes the natural permeation characteristic of wooden porous channel and the selective adsorption performance of functionalized nanometer material, effectively solved the problem that uric acid and interfering substance separate with difficulty, significantly improved uric acid detection precision and sensitivity, realizes high -efficient separation, its simple structure, practical, novel, convenient operation, fast, can be widely applied in clinical diagnosis and family health monitoring etc. field, and the application prospect is wide.