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公开(公告)号：US11479490B2
公开(公告)日：2022-10-25
申请号：US16957464
申请日：2018-12-27
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Daisuke Haraguchi , Hiroshi Hayashi
IPC: C02F9/00 , C02F1/52 , C02F1/66 , C02F101/10 , C02F101/14 , C02F101/20 , C02F103/16
Abstract: A method of treating a waste liquid: an aluminum dissolution step of dissolving aluminum in an acidic waste liquid and performing separation into a first treated water and a reduced heavy metal precipitate; a gypsum recovery step of adding a calcium compound to the first treated water at a pH of 4 or less, and performing separation into a second treated water and gypsum; a heavy metal coprecipitation step of adding a ferric compound to the second treated water and performing separation into a third treated water and a heavy metal coprecipitate; an aluminum and fluorine removal step of adding an alkali to the third treated water and performing separation into a fourth treated water and a precipitate containing aluminum and fluorine; and a neutralization step of adding an alkali to the fourth treated water and performing separation into an alkali neutralization treated water and a neutralized heavy metal hydroxide.
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公开(公告)号：US20220062962A1
公开(公告)日：2022-03-03
申请号：US17422765
申请日：2020-02-21
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Shu Muraoka , Hiroshi Hayashi , Shota Nakayama , Yusuke Kimura
Abstract: A method for treating waste printed circuit board includes carbonizing waste printed circuit board together with a calcium compound at 400° C. to 600° C. in a non-oxidizing atmosphere to fix a halogen contained in the board as calcium halide and to melt a solder of the board to allow mounted parts to be easily separated from the board, performing crushing after the carbonizing, and sieving crushed materials into fine particles of less than 0.5 mm containing the calcium compounds, medium particles containing the mounted parts, and coarse particles containing board pieces such that the crushed materials are sorted into the calcium compounds, the mounted parts, and the board pieces.
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公开(公告)号：US12183478B2
公开(公告)日：2024-12-31
申请号：US17281052
申请日：2019-10-18
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Kenshi Takahashi , Shu Muraoka , Hiroshi Hayashi
Abstract: In this treatment method of a coated wire, a coated wire, which is a metal wire coated with a resin, is subjected to low-temperature heating in a non-combustion atmosphere in coexistence with an alkali to embrittle the coating resin, the embrittled coating resin is crushed, and the coating resin and the metal wire are separated.
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公开(公告)号：US20160049699A1
公开(公告)日：2016-02-18
申请号：US14778701
申请日：2013-09-26
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Hiroshi Hayashi , Koichiro Hirata , Hidenori Tsurumaki , Hisashi Hoshina
CPC classification number: H01M10/54 , C01F11/22 , C10L1/02 , C10L2290/06 , C10L2290/54 , C10L2290/541 , H01M2300/0034 , Y02W30/84
Abstract: A method for processing a fluorine-containing electrolyte solution including a gasification step of gasifying a volatile component of an electrolyte solution including a fluorine compound by heating the electrolyte solution under reduced pressure, a fluorine immobilization step of immobilizing the fluorine component included in the gasified gas as calcium fluoride by allowing the fluorine component to react with calcium, and an organic solvent component collection step of collecting an organic solvent component included in the gasification gas, in which, preferably, after a small amount of water, aqueous mineral acid solution, or the like is added to the electrolyte solution, the volatile component of the electrolyte solution is gasified by heating the electrolyte solution under reduced pressure.
Abstract translation: 一种含氟电解液的处理方法，其特征在于，包括通过在减压下加热所述电解液来使包含氟化合物的电解质溶液的挥发成分气化的气化工序，将所述气化气体中所含的氟成分固定化的氟固定化工序 作为氟化钙，通过使氟成分与钙反应，以及有机溶剂成分收集步骤，收集气化气体中所含的有机溶剂成分，优选在少量的水，无机酸水溶液或 向电解液中加入类似物，通过在减压下加热电解液使电解液的挥发性成分气化。
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公开(公告)号：US20210343453A1
公开(公告)日：2021-11-04
申请号：US17281052
申请日：2019-10-18
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Kenshi Takahashi , Shu Muraoka , Hiroshi Hayashi
Abstract: In this treatment method of a coated wire, a coated wire, which is a metal wire coated with a resin, is subjected to low-temperature heating in a non-combustion atmosphere in coexistence with an alkali to embrittle the coating resin, the embrittled coating resin is crushed, and the coating resin and the metal wire are separated.
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Patent Agency Ranking
公开(公告)号：US20210070637A1
公开(公告)日：2021-03-11
申请号：US16957485
申请日：2018-12-27
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Daisuke Haraguchi , Hiroshi Hayashi
Abstract: A method of treating a waste liquid includes: an aluminum dissolution step of dissolving aluminum in an acidic waste liquid and performing separation into a first treated water and a reduced heavy metal precipitate; a gypsum recovery step of adding a calcium compound to the first treated water at a liquid property of a pH of 4 or less, and performing separation into a second treated water and gypsum; an aluminum and fluorine removal step of adding an alkali to the second treated water and performing separation into a third treated water and a precipitate containing aluminum and fluorine; and a neutralization step of adding an alkali to the third treated water and performing separation into an alkali neutralization treated water and a neutralized precipitate of a heavy metal hydroxide.
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公开(公告)号：US09843077B2
公开(公告)日：2017-12-12
申请号：US14778701
申请日：2013-09-26
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Hiroshi Hayashi , Koichiro Hirata , Hidenori Tsurumaki , Hisashi Hoshina
CPC classification number: H01M10/54 , C01F11/22 , C10L1/02 , C10L2290/06 , C10L2290/54 , C10L2290/541 , H01M2300/0034 , Y02W30/84
Abstract: A method for processing a fluorine-containing electrolyte solution including a gasification step of gasifying a volatile component of an electrolyte solution including a fluorine compound by heating the electrolyte solution under reduced pressure, a fluorine immobilization step of immobilizing the fluorine component included in the gasified gas as calcium fluoride by allowing the fluorine component to react with calcium, and an organic solvent component collection step of collecting an organic solvent component included in the gasification gas, in which, preferably, after a small amount of water, aqueous mineral acid solution, or the like is added to the electrolyte solution, the volatile component of the electrolyte solution is gasified by heating the electrolyte solution under reduced pressure.
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公开(公告)号：US12186786B2
公开(公告)日：2025-01-07
申请号：US17422765
申请日：2020-02-21
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Shu Muraoka , Hiroshi Hayashi , Shota Nakayama , Yusuke Kimura
IPC: B09B3/25 , B02C18/00 , B02C23/08 , B07C5/06 , B07C5/342 , B07C5/344 , B09B3/40 , B09B101/17 , H05K3/22
Abstract: A method for treating waste printed circuit board includes carbonizing waste printed circuit board together with a calcium compound at 400° C. to 600° C. in a non-oxidizing atmosphere to fix a halogen contained in the board as calcium halide and to melt a solder of the board to allow mounted parts to be easily separated from the board, performing crushing after the carbonizing, and sieving crushed materials into fine particles of less than 0.5 mm containing the calcium compounds, medium particles containing the mounted parts, and coarse particles containing board pieces such that the crushed materials are sorted into the calcium compounds, the mounted parts, and the board pieces.
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公开(公告)号：US11505480B2
公开(公告)日：2022-11-22
申请号：US16957485
申请日：2018-12-27
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Daisuke Haraguchi , Hiroshi Hayashi
IPC: C02F1/52 , C01F11/46 , C02F1/68 , C02F1/70 , C22B3/46 , C02F1/66 , C02F1/58 , C02F101/14 , C02F101/20 , C02F103/16
Abstract: A method of treating a waste liquid includes: an aluminum dissolution step of dissolving aluminum in an acidic waste liquid and performing separation into a first treated water and a reduced heavy metal precipitate; a gypsum recovery step of adding a calcium compound to the first treated water at a liquid property of a pH of 4 or less, and performing separation into a second treated water and gypsum; an aluminum and fluorine removal step of adding an alkali to the second treated water and performing separation into a third treated water and a precipitate containing aluminum and fluorine; and a neutralization step of adding an alkali to the third treated water and performing separation into an alkali neutralization treated water and a neutralized precipitate of a heavy metal hydroxide.
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公开(公告)号：US11088406B2
公开(公告)日：2021-08-10
申请号：US16479324
申请日：2018-01-23
Applicant: MITSUBISHI MATERIALS CORPORATION
Inventor： Shu Muraoka , Hiroshi Hayashi , Hiromichi Koizumi , Ryutaro Fujisawa
Abstract: A valuable material recovery method includes a discharge step of discharging a lithium-ion battery; a thermal decomposition step of reducing a lithium compound, which is a cathode active material, into a magnetic oxide by thermally treating the lithium-ion battery after being discharged; a crushing step of crushing the lithium-ion battery, after being thermally decomposed, into fragments of a size suitable for wind sorting, allowing part of the magnetic oxide to remain in the aluminum foil; a sieving step of sieving a crushed material to separate the crushed material into an oversized product and an undersized product; a wind sorting step of separating the oversized product into a heavy product and a light product; and a magnetic sorting step of sorting and recovering the aluminum foil with a residue of the magnetic oxide, as a magnetized material, and recovering the copper foil as a non-magnetized material from the light product.
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