Abstract: Provided is a method for preparing high-purity indium (In). The method for preparing the high-purity In includes: distilling refined In to obtain an In vapor-containing gas; and condensing the In vapor-containing gas to obtain the high-purity In; where the distilling is conducted at a temperature of 1,000° C. to 1,100° C. under a vacuum degree of 1.0×10?3 Pa to 5.0×10?2 Pa; and the condensing is conducted at a temperature of 700° C. to 900° C. under a vacuum degree of 1.0×10?3 Pa to 5.0×10?2 Pa. The In vapor-containing gas is obtained by controlling the temperature and vacuum degree of the distilling to evaporate In and impurities with a vapor pressure higher than the In. The temperature and vacuum degree of the condensing are adjusted to condense the In in the In vapor-containing gas.

Abstract: The present disclosure relates to a device and method for recovering arsenic and gallium. A closed furnace body is in communication with a vacuuming pipe, and the vacuuming pipe is connected to a vacuuming mechanism. The closed furnace body includes a first furnace body, a second furnace body and a third furnace body. A first heating mechanism and a graphite crucible are arranged inside the first furnace body, the first heating mechanism being used for heating the graphite crucible. A first collection cylinder is in communication with a second collection cylinder. The device for recovering arsenic and gallium of the present disclosure is arranged with a structure for realizing directional condensation of gallium arsenide clusters and arsenic vapor, respectively, to realize high-purity recovery of arsenic and gallium.

Abstract: An asymmetric sodium-based solid-state composite electrolyte includes a first solid-state composite electrolyte layer and a second composite electrolyte layer obtained by laminated coating method. Both the two solid-state composite electrolyte layers include a polymer matrix, an inorganic filler, a sodium salt and a plasticizer, the difference is the electron conductive agent added with the mass ratio ranges from 1 wt. %˜10 wt. % into the second solid-state composite electrolyte layer. In a battery assembled with the asymmetric sodium-based solid-state composite electrolyte, the first solid-state composite electrolyte layer is contiguous with a positive electrode, and the second solid-state composite electrolyte layer is disposed between the first solid-state composite electrolyte layer and a negative electrode.

Abstract: Provided are a vacuum distillation furnace, and a method for preparing high-purity copper particles. In view of the fact that high-purity copper prepared by the traditional method in the current industrial production has an unsatisfactory purity, a high impurity content, and a complicated composition, a vacuum distillation method is adopted. During the vacuum distillation method, most of valuable metals in a copper matrix are volatilized and enter into a gas phase, such that the metals are separated from the copper matrix, thereby allowing the purification of copper; and copper powder particles volatilized to a condensation plate have a smooth surface and a purity of 5 N grade or more.

Abstract: Disclosed is a method for removing impurity mercury from crude selenium. The method includes: mixing a vulcanizing agent with a crude selenium slag that is crushed to not more than 200 mesh uniformly, and performing briquetting to obtain a mixed material; adding the mixed material into a sealed furnace, and subjecting the mixed material to vulcanization by heating under an inert atmosphere to obtain a vulcanized selenium; subjecting the vulcanized selenium to primary vacuum distillation, such that selenium is converted into a gas phase and collected in a form of a volatile, and generated mercury sulfide and valuable elements are enriched in a resulting residue; and subjecting the selenium to secondary distillation to further remove mercury.

Abstract: This invention presents an electrochemical metallurgical technique for extracting metals and sulfur from metal sulfides, offering an adjustable composition and mechanical properties during electrode preparation. The metal sulfide anode, submerged in an electrolyte with a cathode made of materials like titanium, copper, stainless steel, lead, zinc, aluminum or graphite, undergoes electrolysis. This process oxidizes sulfur in the metal sulfide to the anode and releases metal ions into the electrolyte, where they're reduced at the cathode. The method yields metal at the cathode and sulfur at the anode, with minimal environmental impact, low investment, and straightforward process.

Abstract: Provided is a recovery method for valuable metals in copper anode slime. By using the recovery method of the disclosure, selenium, copper, tellurium, arsenic, lead, bismuth, and precious metals gold and silver in the copper anode slime are recovered. The method adopts two-step vacuum carbothermal reduction to replace reduction smelting of anode slime and stepwise blowing of noble lead in the traditional pyrometallurgy, and avoids the emission of arsenic-containing soot in the traditional process. The recovered gold-rich residue contains almost no base metals such as lead, bismuth, antimony, and arsenic. After subjecting the gold-rich residue to leaching gold by chlorination and reduction, a gold powder could be obtained therefrom with a lower content of base metals than traditional processes. Therefore, the method greatly reduces the amount of produced slag, shortens the production cycle, and reduces the loss of precious metals in the slag.

Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved.

Abstract: A method for preparing a sodium super ionic conductor solid electrolyte by low-dimensional crystallization belongs to a field of energy materials. The method is based on the theory of negative ion coordination polyhedron growth unit, and uses low-temperature plasma as a protective gas of a spray drying equipment. While evaporating the solvent in a sodium super ionic conductor solid electrolyte precursor slurry, plasma active groups modify the particle surface of the sodium super ionic conductor solid electrolyte precursor particles in-situ. A free space dimension of crystal growth in the crystallization process is reduced, and directional growth of crystals in the solid phase sintering process is induced. Secondly, the dispersion stability of the sodium super ionic conductor solid electrolyte precursor particles is improved.

Abstract: An apparatus and method for preparing high-purity spherical magnesium and/or high-purity magnesium powder are provided. The apparatus includes a vertical furnace body, a heating zone, and a condensing zone, where a periphery of the condensing zone is provided with a first thermal insulation device and a second thermal insulation device sequentially from bottom to top, and each of the first thermal insulation device and the second thermal insulation device is removably arranged; the periphery of the condensing zone is further provided with a liquid cooling device; a gas inlet and a gas outlet are formed in the condensing zone; and an inner wall of the condensing zone is provided with an arrangement structure configured to arrange a collection device. A heating temperature of a material and condensation conditions in the condensing zone are controlled to make an evaporated magnesium vapor condensed on the collection device in the condensing zone.

Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.

Abstract: Disclosed is a device for continuous treatment of materials containing volatile components, which belongs to the field of pyrometallurgical equipment. The device includes a feeding unit, a heating unit, a slag raking unit and a slag collecting unit. The feeding unit is configured to feed the materials with a push rod or in a spiral mode. The heating unit is provided with a square furnace body, and a first slag raking port is provided in the lower part of the furnace body. The slag collecting unit is provided with a slag discharging port at the lower portion thereof, is provided with a slag smashing port at the sidewall thereof, and is provided with a viewing port at the top thereof. The slag collecting unit and the heating unit are connected through a pipeline, thus achieving the pressure balance of the whole device during operation.

Abstract: Disclosed is a device for continuous treatment of materials containing volatile components, which belongs to the field of pyrometallurgical equipment. The device includes a feeding unit, a heating unit, a slag raking unit and a slag collecting unit. The feeding unit is configured to feed the materials with a push rod or in a spiral mode. The heating unit is provided with a square furnace body, and a first slag raking port is provided in the lower part of the furnace body. The slag collecting unit is provided with a slag discharging port at the lower portion thereof, is provided with a slag smashing port at the sidewall thereof, and is provided with a viewing port at the top thereof. The slag collecting unit and the heating unit are connected through a pipeline, thus achieving the pressure balance of the whole device during operation.

Abstract: The present disclosure discloses a method for plasma modification of sodium super ionic conductor type solid electrolyte, which comprises: dielectric barrier discharge plasma modification of sodium super ionic conductor solid electrolyte particles to obtain activated sodium super ionic conductor solid electrolyte particles; weigh the polymer and the activated sodium super ionic conductor solid electrolyte particles in a predetermined proportion, dissolve the polymer and the activated sodium super ionic conductor solid electrolyte particles in an organic solvent to obtain a mixed solution, then pour the mixed solution into a preset mold, and then dry it to remove the organic solvent and form a composite solid electrolyte film. The composite solid electrolyte film is taken out of the mold and rolled to obtain the composite solid electrolyte film after rolling treatment.

Abstract: The present disclosure discloses a flexible substrate and a method for manufacturing the same, and a flexible display substrate and a method for manufacturing the same. The method for manufacturing the flexible substrate includes: sequentially forming a first flexible substrate layer and a first inorganic layer on a rigid base substrate; forming a second flexible substrate layer on a side of the first inorganic layer distal from the first flexible substrate layer, an orthographic projection of the second flexible substrate layer on the first flexible substrate layer being located within the first flexible substrate layer; and stripping off the rigid base substrate to obtain the flexible substrate. The method solves the problem of poor process of the flexible substrate.

Abstract: The present disclosure discloses a method and apparatus for positioning a vehicle. In some embodiments, the method comprises: acquiring an a priori position of a to-be-positioned vehicle at a current positioning moment determined by performing a strapdown calculation between a previous positioning moment and the current positioning moment; determining a map area for searching in a laser point cloud reflected value map; matching a reflected value characteristic of a projection area generated by projecting a real-time laser point cloud, to obtain a map matching position according to a matching result; positioning, using the a priori position in combination with observation data of a vehicle-mounted global navigation satellite system (GNSS) receiver of the vehicle, to obtain a satellite positioning position; and fusing the a priori position, the map matching position and the satellite positioning position to generate a positioning result of positioning the vehicle at the current moment.

Abstract: A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.

Abstract: In a specific implementation of the method a reflectance map is constructed based on a position and an Euler angle, obtained through a global optimization and used for constructing a reflectance map, of a center of a laser radar corresponding to each frame laser point cloud used for constructing the reflectance map collected in each collection region. This implementation implements the level-by-level pose optimization of laser point clouds used for constructing a reflectance map that are collected in each collection region in an excessively large region, to obtain an accurate position and Euler angle, used for constructing the reflectance map, of a laser radar center corresponding to each frame laser point cloud used for constructing the reflectance map.

Abstract: The present disclosure discloses a flexible substrate and a method for manufacturing the same, and a flexible display substrate and a method for manufacturing the same. The method for manufacturing the flexible substrate includes: sequentially forming a first flexible substrate layer and a first inorganic layer on a rigid base substrate; forming a second flexible substrate layer on a side of the first inorganic layer distal from the first flexible substrate layer, an orthographic projection of the second flexible substrate layer on the first flexible substrate layer being located within the first flexible substrate layer; and stripping off the rigid base substrate to obtain the flexible substrate. The method solves the problem of poor process of the flexible substrate.

Abstract: The present application discloses a method and apparatus for updating a map. An implementation of the method comprises: acquiring a laser point clouds obtained by scanning a surrounding environment and acquiring a periodic pose change of a vehicle in a scanning period; determining an a priori pose of the laser radar at a reference time in the current scanning period based on a known pose of the laser radar in a previous scanning period and the periodic pose change; performing motion compensation on the scanned laser point clouds to form a compensated point cloud frame; generating a partial point cloud characteristic map; matching the partial point cloud characteristic map with a map area obtained in a reference point cloud map, and correcting the a priori pose to obtain an a posteriori pose; and updating a three-dimensional point cloud map of a to-be-constructed area using the compensated point cloud frame.