Abstract: [Object] Provided are an electrode substrate film in which a circuit pattern formed of a metal thin line is less visible even under highly bright illumination, and a laminate film applied to the same. [Solving Means] An electrode substrate film with a transparent substrate 52 and a metal laminate thin line includes a metal absorption layer 51 with a film thickness of 20 nm to 30 nm inclusive as a first layer, and a metal layer 50 as a second layer, counted from the transparent substrate side, the laminate thin line having a line width of 20 ?m or less. Optical constants of the metal absorption layer in a visible wavelength range (400 to 780 nm) satisfy conditions that a refractive index is 2.0 to 2.2 and an extinction coefficient is 1.8 to 2.1 at a wavelength of 400 nm, the refractive index is 2.4 to 2.7 and the extinction coefficient is 1.9 to 2.3 at a wavelength of 500 nm, the refractive index is 2.8 to 3.2 and the extinction coefficient is 1.9 to 2.5 at a wavelength of 600 nm, the refractive index is 3.

Abstract: The present invention aims at separating and removing arsenic in a stable form from raw material containing rhenium and arsenic, and reducing a circulation amount of arsenic in a rhenium purification process to obtain rhenium with low-content arsenic.

Abstract: A method for recovering valuable metals is provided in which the degree of oxidation of molten waste batteries is stabilized and separation between slag and an alloy is ensured. The method includes a roasting step (ST10) in which waste batteries are roasted beforehand at a low temperature of 300° C. or higher but lower than 600° C., an oxidation step (ST20) in which the waste batteries are oxidized by roasting at 1,100-1,200° C., and dry step (S20) in which the waste batteries that were oxidized in the oxidation step are melted, and slag and an alloy of valuable metals are separated from each other and recovered. By conducting the roasting step (ST10), organic carbon, which impairs the stability of the oxidation step (ST20) and which is contained, in plastic components, etc., is removed in advance prior to the oxidation step (ST20), and the efficiency of slag/alloy separation can be improved.

Abstract: The countercurrent direct-heating-type heat exchanger that is able to suppress drift in the case when a fluid to be heated is supplied. The heat exchanger is equipped with a feed pipe, a feed nozzle, ring-like straightening plates and umbrella-type dispersing plates of the above fluid to be heated, characterized in that the above feed nozzle has the shape of a pipe having a circular cross section and the dimension satisfying the following formula (1) and formula (2): Ln/Dn?1??Formula (1) wherein, Ln indicates the length of the feed nozzle; and Dn indicates the inside diameter of the feed nozzle; and 1.5?Sp/Sn?2.0??Formula (2) wherein, Sp indicates the inner cross-sectional area of the feed pipe; and Sn indicates the inner cross-sectional area of the feed nozzle.

Abstract: A method for scrubbing an amine extractant (A) containing an amine added with hydrochloric acid, and an amine binding a metal chloro complex ion, in a scrubbing stage constituting a solvent extraction step, characterized by substituting a chloride ion of the amine, which is added with hydrochloric acid, with sulfuric acid ion, by bringing the amine extractant (A) into contact with a sulfuric acid solution with a concentration of 3 to 10 N, and subsequently, by eliminating a metal by bringing the substituted amine extractant (B) into contact with water.

Abstract: A process for efficient separation/recovery of copper involving selective extraction of the copper ion with the aid of an organic extractant from an aqueous chloride solution containing copper and one or more concomitant elements, discharged from an extractive metallurgy of non-ferrous metals or the like, and subsequent stripping. The process of solvent extraction of copper which treats an aqueous chloride solution containing copper and one or more concomitant elements to separate/recover copper, comprising the first step for selective extraction of copper from the aqueous chloride solution by mixing the solution with an extractant of organic solvent composed of tributyl phosphate as the major component after adjusting the solution at an oxidation-reduction potential of 0 to 350 mV (based on an Ag/AgCl electrode), and the second step for stripping of copper by mixing the extractant in which copper is stripped with an aqueous solution.