Abstract: Provided is a method for efficiently recovering metals from lithium ion battery waste while reducing the use of sodium hydroxide as a pH adjuster. A method for recovering metals from lithium ion battery waste includes wet processing of leaching metals containing lithium from lithium ion battery waste with an acid, and extracting the metals from the metal-containing solution in which the metals are dissolved, in which the lithium extracted in the wet processing is used as a pH adjuster used in the wet processing.

Abstract: A metal-resin composite electromagnetic shielding material, in which N (N is an integer of 1 or more) metal layers and M (M is an integer of 1 or more) resin layers are laminated with adhesive layers interposed therebetween, wherein among the adhesive layers, in the adhesive layer closest to an outer surface of the metal-resin composite electromagnetic shielding material, when observing the adhesive layer from the resin layer side, an air bubble ratio in the adhesive layer is 4.5% or less.

Abstract: Provided is a method for processing electrical and electronic component scraps and an apparatus for processing electrical and electronic component scraps that can more efficiently sort out desired component scraps from electrical and electronic component scraps using an image recognition processing technique and a sorting device. A method for processing electrical and electronic component scraps including a sorting condition determining step S10 of determining a sorting condition of electrical and electronic component scraps.

Abstract: An indium phosphide substrate, the phosphide substrate has an angle ? on the main surface side of 0°<??120° for all of the planes A, the indium phosphide substrate has edge rounds on the main surface side and a surface side opposite to the main surface; wherein a chamfered width Xf from the wafer edge on the main surface side is 50 ?m or more to 130 ?m or less; wherein a chamfered width Xb from the wafer edge on the surface side opposite to the main surface is 150 ?m or more to 400 ?m or less; and wherein the indium phosphide substrate has a thickness of 330 ?m or more to 700 ?m or less.

Abstract: The present invention provides a method for producing an aqueous tin methanesulfonate solution by dissolving tin (II) oxide in an aqueous methanesulfonic acid solution, wherein if A is the number of moles of the tin (II) oxide and B is the number of moles of the methanesulfonic acid, the value of B/2A is within the range of from 1.0 to 1.4. This method for dissolving tin (II) oxide into an aqueous methanesulfonic acid solution is able to achieve a high tin ion concentration.

Abstract: Provided is a method for processing electronic and electrical device component scrap, which can improve an efficiency of sorting of raw materials fed to the smelting step from electronic and electrical device component scrap, and reduce losses of valuable metals. A method for processing electronic and electrical device component scrap which includes removing powdery objects contained in electronic and electrical device component scrap prior to a step of separating non-metal objects or metal objects from the electronic and electrical device component scrap containing the metal objects and the non-metal objects, using a metal sorter including: a metal sensor, a color camera, an air valve, and a conveyor.

Abstract: Provided is a sorting machine capable of more easily and efficiently sorting specific parts having a specific shape from raw materials containing various substances having different shapes, and a method for treating electronic and electric device component scraps using the sorting machine. The sorting machine includes a conveying device 1 having a conveying surface 13 which conveys raw materials containing substances having different shapes from a raw material inlet 11 to a receiving port 12; and a gate device 2 provided with a cylindrical roll portion 21 having a rotating function arranged at a certain distance d on the conveying surface to allow at least a part of the raw materials 100 to pass through to the receiving port 12.

Abstract: Provided is an apparatus for analyzing composition of electronic and electrical device part scraps which can determine a composition of part scraps in the electronic and electrical device part scraps in a short time, a device for processing electronic and electrical device part scraps, and a method for processing electronic and electrical device part scraps using those devices.

Abstract: Provided is a CdZnTe monocrystalline substrate which has a small leakage current even when a voltage is applied from a low voltage to a high voltage, and which has a lower variation in resistivity with respect to applied voltage changes from 0 to 900 V, and which can maintain a stable resistivity. A semiconductor wafer comprising a cadmium zinc telluride monocrystal having a zinc concentration of 4.0 at % or more and 6.5 at % or less and a chlorine concentration of 0.1 ppm by weight or more and 5.0 ppm by weight or less, wherein when a voltage is applied in a range of from 0 to 900 V, the semiconductor wafer has a resistivity for each applied voltage value of 1.0×107 ?cm or more and 7.0×108 ?cm or less, and wherein a relative variation coefficient of each resistivity to the applied voltages in a range of from 0 to 900 V is 100% or less.

Abstract: The present invention provides a corrosion-resistant CuZn alloy, the alloy having a Zn content of from 15 to 55% by mass, the balance being Cu and inevitable impurities, wherein a total content of Zn and Cu is 99.995% by mass or more, and wherein a number of pores is 1/cm2 or less based on optical microscopic observation.

Abstract: Provided is a titanium copper foil which has required high strength when used as a spring, and has improved etching uniformity, and which can be suitably used as a conductive spring material for use in electronic device parts such as autofocus camera modules. The titanium copper foil contains from 1.5 to 5.0% by mass of Ti and from 10 to 3000 pm by mass of Fe, the balance being Cu and inevitable impurities, wherein the titanium copper foil has crystal orientation having A of from 10 to 40, in which A is represented by the following equation (1) when measuring a rolled surface by an X-ray diffraction method: A=?{220}/(?{200}+?{311}) ??Equation (1) in which the ?{220}, the ?{200}, and the ?{311} represent half-value widths of X-ray diffraction peaks at a {220} crystal plane, a {200} crystal plane, and a {311} crystal plane, respectively.

Abstract: A positive electrode active material for all-solid lithium ion batteries including a core positive electrode active material particle and a coating layer, the core positive electrode active material particle being represented by a composition shown in the following formula (1): LiaNibCocMndOe??(1) in which formula (1), 1.0?a?1.05, 0.8?b?0.9, 1.8?e?2.2, b+c+d=1; wherein the coating layer is an oxide of Li and Nb, and a specific surface area X (m2/g) of the positive electrode active material and a Nb content Y (mass %) in the positive electrode active material satisfy a relationship of the following formula (2): 0.65?Y/X?1.20??(2).

Abstract: Provided are a raw material discharge device, a method of processing an electronic and electrical device component scrap, and a raw material discharging method of an electronic and electrical device component scrap, which are capable of efficiently discharging the raw material having various shapes, specific gravities and shapes in each fixed amount.

Abstract: Provided is a rolled copper foil for a lithium ion battery current collector, which has good adhesion to a negative electrode active material, generates less metal powder during ultrasonic welding, and has a rust prevention property. In the rolled copper foil for a lithium ion battery current collector, a surface of the copper foil has a BTA film, the BTA film has a thickness of 0.6 nm or more and 4.6 nm or less, and the rolled copper foil satisfies the following relationships: 40?wet tension [mN]/m]+thickness of BTA film [nm]×10?80; 0.01?arithmetic average roughness Ra [?m]?0.25; and wet tension [mN/m]?35.

Abstract: The purpose of the present invention is to provide a stannous oxide, which has excellent solubility and resistance to oxidation, from a stannous oxide powder comprising a stannous oxide and inevitable impurities, the stannous oxide powder having a stannous oxide content of 99.99 mass % or more in dry mass, a specific surface area of less than 0.5 m2/g, a D50 particle size of 20 to 60 ?m, and a half width of the particle size distribution of 5 to 30 ?m.

Abstract: Provided is a method for producing lithium carbonate from lithium ion battery waste, the lithium ion battery waste including battery positive material components containing Li and at least one metal selected from the group consisting of Co, Ni and Mn, wherein, after subjecting the lithium ion battery waste to a wet process, thereby separating the at least one metal of the battery positive material components from the lithium ion battery waste to obtain crude lithium carbonate, the method includes: a dissolution step of dissolving the crude lithium carbonate in a liquid while feeding a carbon dioxide gas; and a decarbonization step of heating a lithium dissolved solution obtained in the dissolution step to release carbonic acid, and wherein when dissolving the crude lithium carbonate in the liquid in the dissolution step, the liquid is stirred in a reaction vessel using a stirrer, and a ratio of a diameter (d) of a stirring blade of the stirrer to an inner diameter (D) of the reaction vessel (d/D) is from 0.

Abstract: Provided is a stable CdZnTe monocrystalline substrate having a small leakage current even when a high voltage is applied and having a lower variation in resistivity with respect to variations in applied voltage values. A semiconductor wafer comprising a cadmium zinc telluride monocrystal having a zinc concentration of 4.0 at % or more and 6.5 at % or less and a chlorine concentration of 0.1 ppm by mass or more and 5.0 ppm by mass or less, wherein the semiconductor wafer has a resistivity of 1.0×107 ?cm or more and 1.0×108 ?cm or less when a voltage of 900 V is applied, and wherein a ratio (variation ratio) of the resistivity at application of 0 V to the resistivity at application of a voltage of 900 V is 20% or less.

Abstract: The present invention relates to a method for treating lithium ion battery scrap containing Li, Ni, Co, Mn, Al, Cu and Fe, the method comprising carrying out a calcination step, a crushing step and a sieving step in this order, and after the steps, the method comprising: a leaching step of leaching the lithium ion battery scrap by adding it to an acidic solution to leave at least a part of Cu as a solid; a Fe/Al removal step comprising allowing a leached solution obtained in the leaching step to pass through a Fe removal process for separating and removing Fe by addition of an oxidizing agent and an Al removal process for separating and removing a part of Al by neutralization in any order; an Al/Mn extraction step of extracting and removing a residue of Al and Mn from a separated solution obtained in the Fe/Al removal step by solvent extraction; a Co recovery step of extracting and back-extracting Co from a first extracted solution obtained in the Al/Mn extraction step by solvent extraction and recovering the

Abstract: Providing a method of recovering Cu from copper ore containing Hg. A method for recovering Cu from copper ore, the method comprising: (A) providing copper ore containing Hg with an amount of 0.2 ppm or more; (B) treating the copper ore to leach Cu and Hg with use of solution containing iodide ions and Fe (3+); and (C) treating post-leaching solution with activated carbon to absorb the iodide ions and Hg.

Abstract: Provided is a method for removing a linear object, a device for removing a linear object, and a method for processing electronic/electrical equipment component waste, which can improve separation efficiency.