Jx Nippon Mining Metals Corporation

Oki Data Corporation

Fuji Electric Co., Ltd.

Nippon Mining & Metals Co., Ltd.

Japan Aviation Electronics Industry, Limited

Osaka University

Nagoya University

Sumitomo Light Metal Industries, Ltd.

Jx Metals Corporation

Dainichiseika Color & Chemicals Mfg. Co., Ltd.

Jx Metals Circular Solutions Co., Ltd.

Junichi Ito

Atsushi Kobayashi

Masayuki A Suzuki

Takuya Goto

Tatsuya Murakami

Michiei Nakamura

Toru Imori

Takahiro Imai

Junnosuke Sekiguchi

Junichi Arakawa

Atsushi Yabe

Shigeki Nakajima

Hiroshi Okamura

Tetsu Koyama

Yoshiharu Momiyama

Hisatoshi Saito

Mitsuhiro Kawata

Sinichi Otani

Koetsu Fujita

Yoshiyuki Hisumi

Takuya Yokota

Yasuhiro Yamakoshi

Shinichiro Senda

Masayuki Suzuki

Tsukasa Torimoto

Susumu Kuwabata

Masayuki Shibata

Shinichi Otani

Naoki Higuchi

Yasufumi Haga

Hidetoshi Umida

Shigenori Kinoshita

Shinichi Ishii

Makoto Yonemitsu

Akihiro Aiba

Yoshitatsu Okiyama

Makoto Yabuki

Yuichi Yanai

Hiroshi Abe

Hirotaka Ariyoshi

Takahiro Saito

Tetsuro Atsumi

Jun Suzuki

Yoshihiro Nishimoto

Takaaki Osanai

Ryu Murakami

Kenichi Okazaki

Ken Adachi

Yoshinori Konno

Hiromichi Ueno

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 Co by electrolytic winning; a Ni recovery step of extracting and back-extracting, by solvent extraction, a part of Ni from a second extracted solution obtained by the solvent extraction in the Co recovery step and recovering the Ni by electrolytic winning; a Li concentration step of extracting and back-extracting, by solvent extraction, a residue of Ni and Li from a third extracted solution obtained by the solvent extraction in the Ni recovery step and repeating the operations of the extracting and the back-extracting to concentrate Li; and a Li recovery step of carbonating Li in a Li concentrated solution obtained in the Li concentration step to recover the Li as lithium carbonate.

Lithium ion battery scrap treatment method

A method for recovering lithium from lithium ion battery scrap according to this invention comprises subjecting lithium ion battery scrap to a calcination step, a crushing step, and a sieving step sequentially carried out, wherein the method comprises, between the calcination step and the crushing step, between the crushing step and the sieving step, or after the sieving step, a lithium dissolution step of bringing the lithium ion battery scrap into contact with water and dissolving lithium contained in the lithium ion battery scrap in the water to obtain a lithium-dissolved solution; a lithium concentration step of solvent-extracting lithium ions contained in the lithium-dissolved solution and stripping them to concentrate the lithium ions to obtain a lithium concentrate; and a carbonation step of carbonating the lithium ions in the lithium concentrate to obtain lithium carbonate.

Method for recovering lithium from lithium ion battery scrap

A method for processing lithium ion battery scrap includes a leaching step of leaching lithium ion battery scrap and subjecting the resulting leached solution to solid-liquid separation to obtain a first separated solution; an iron removal step of adding an oxidizing agent to the first separated solution and adjusting a pH of the first separated solution in a range of from 3.0 to 4.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution; and an aluminum removal step of neutralizing the second separated solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the second separated solution to obtain a third separated solution.

Processing method for lithium ion battery scrap

A method for processing lithium ion battery scrap according to this invention includes a leaching step of leaching lithium ion battery scrap to obtain a leached solution; an aluminum removal step of neutralizing the leached solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the leached solution to obtain a first separated solution; and an iron removal step of adding an oxidizing agent to the first separated solution and adjusting the pH in a range of from 3.0 to 5.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution.

Image drum cartridge

Toner cartridge

The present invention provides a method for removing iron from an iron-containing solution containing an iron ion, comprising adding a lithium ion battery cathode material containing manganese to an acidic sulfuric acid solution to obtain a cathode material-containing solution, and then precipitating a manganese ion as manganese dioxide in a mixed solution obtained by mixing the iron-containing solution with the cathode material-containing solution while precipitating the iron ion contained in the iron-containing solution as a solid.

Method for removing iron from iron-containing solution and method for recovering valuable metals

The present invention provides a method for removing copper from lithium ion battery scrap containing copper, comprising a leaching step of adding the lithium ion battery scrap to an acidic solution and leaching the lithium ion battery scrap under a condition that an aluminum solid is present in the acidic solution; and a copper separating step of separating copper contained in the acidic solution as a solid from the acidic solution, after the leaching step.

Method for removing copper from lithium ion battery scrap and method for recovering metals

Provided are a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70&#x2266;x&#x2266;90, 10&#x2266;y&#x2266;30 unit: atomic percent), and a sintered compact sputtering target for forming a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70&#x2266;x&#x2266;90, 10&#x2266;y&#x2266;30, unit: atomic percent), and comprising a target structure configured from a W matrix and Ni particles existing therein and in which W is diffused in the Ni particles. The present invention aims to provide a sputtering target that is particularly effective for use in forming a barrier film in which the target itself has the same composition as the barrier film without depending on the nitriding reaction in the sputtering process, which is capable of effectively preventing the reaction of a semiconductor device, which is free from the generation of particles in the sputtering process, and which yields superior characteristics upon forming the barrier film, as well as a method of producing such a target.

Barrier film for semiconductor wiring, sintered compact sputtering target and method of producing the sputtering target

An electroless plating pretreatment agent that can retain stably Pd(II) over a long period of time in an organic solvent, an electroless plating method using the same that is capable of forming an electroless plated film having excellent adhesion, and an electroless plated object. The electroless plating pretreatment agent contains an organic palladium compound and a coordination compound having a functional group with a metal-capturing capability dissolved in an organic solvent, the coordination compound being selected from the group consisting of the imidazole analogs, polyethyleneamines, ethyleneimines and polyethyleneimines.

Electroless plating pretreatment agent, electroless plating method using same, and electroless plated object

A substrate having, on a base material, a barrier film for preventing copper diffusion containing one or more metal elements selected from tungsten, molybdenum and niobium, a metal element having a catalytic function in electroless plating such as platinum, gold, silver and palladium, and nitrogen contained in the form of a nitride of the aforementioned one or more metal elements selected from tungsten, molybdenum and niobium. The barrier film for preventing copper diffusion is manufactured by sputtering in a nitrogen atmosphere using a target containing one or more metal elements selected from tungsten, molybdenum and niobium and the aforementioned metal element having a catalytic function in electroless plating.

Substrate and manufacturing method therefor

A plated article has an alloy thin film formed on a substrate and having a catalytically active metal (A) for electroless plating and a metal (B) capable of undergoing displacement plating with a metal ion contained in an electroless plating solution, and a metal thin film formed on the alloy thin film by electroless displacement and reduction plating. The alloy thin film of the catalytically active metal (A) and the metal (B) capable of displacement plating has a composition comprising 5 at % to 40 at % of the metal (A). The metal thin film formed by electroless displacement and reduction plating is a metal thin film having a thickness no greater than 10 nm and a resistivity no greater than 10 &#x3bc;&#x3a9;&#xb7;cm. Preferably, the metal (B) has a barrier function with respect to a metal of the metal thin film.

Plated article having metal thin film formed by electroless plating

A layer having a barrier function and catalytic power and excelling in formation uniformity and coverage of an ultrathin film, a pretreatment technique making it possible to form an ultrafine wiring and form a thin seed layer of uniform film thickness and a substrate including a thin seed layer formed with a uniform film thickness by electroless plating by using the aforementioned technique. A substrate in which an alloy film of one or more metal elements, having a barrier function and a metal element or metal elements, having catalytic power with respect to electroless plating is formed by chemical vapor deposition (CVD) on a base to a film thickness of 0.5 nm to 5 nm with a content ratio of the one or more metal element having a barrier function from 5 to 90 at. %.

Substrate comprising alloy film of metal element having barrier function and metal element having catalytic power

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Tokyo, Japan

Junichi Ito