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公开(公告)号：US09803261B2
公开(公告)日：2017-10-31
申请号：US14429643
申请日：2014-03-06
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Matsuhide Horikawa , Seiichiro Tani
CPC classification number: C22B34/1209 , C01B7/035 , C01G23/022 , C01G23/04 , C22B1/02 , C22B1/08 , C22B7/04 , C22B34/1204 , Y02P10/212
Abstract: A technique is provided, in which impure metal is efficiently separated and removed from titanium-containing raw material such as titanium slag or ilmenite and high titanium-containing raw material is produced. The method for improving quality of titanium-containing raw material containing slag, including steps of: oxidizing the titanium-containing raw material, selectively chlorinating impurities in the titanium-containing raw material, and separating and removing the impure chlorides to obtain high titanium-containing raw material. Alternatively, in this method, the oxidizing treatment and the selective chlorinating treatment are performed simultaneously.
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公开(公告)号：US20220162451A1
公开(公告)日：2022-05-26
申请号：US17432988
申请日：2020-02-26
Applicant: Toho Titanium Co., Ltd.
Inventor： Matsuhide Horikawa , Seiichiro Tani , Hideki Fujii , Tomoaki Heya , Hideki Watanabe
Abstract: Particles containing a titanate compound according to the present invention comprise alkali metal titanate particles and binder layers, wherein the particles containing the titanate compound has a 50% particle diameter D50 of from 40 μm to 100 μm, and wherein a content ratio of the particles containing the titanate compound having a shorter diameter d of 3 μm or less, a longer diameter L of 5 μm or more, and an aspect ratio (L/d) of 3 or more is 0.05 mass % or less.
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公开(公告)号：US09944536B2
公开(公告)日：2018-04-17
申请号：US14429675
申请日：2014-03-06
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Matsuhide Horikawa , Seiichiro Tani , Ryota Horiguchi , Eiichi Fukasawa
IPC: C01G23/02
CPC classification number: C01G23/022
Abstract: A technique is provided in which valuable material is recovered from solid recovered material generated during chlorinating process of titanium-containing raw material, and in particular, in which chlorine gas and titanium-containing raw material can be efficiently separated and recovered from the solid recovered material. The method for production of titanium tetrachloride includes: a chlorinating process in which titanium-containing raw material, coke and chlorine are reacted, a recovering process in which chlorine gas, titanium oxide and coke are recovered by treating solid recovered material which is byproduced during the chlorinating process, and a reusing process in which these recovered material are reused as raw material for the chlorinating process.
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4.发明公开公开(公告)号：US20240191385A1
公开(公告)日：2024-06-13
申请号：US18569131
申请日：2022-04-27
Applicant: Toho Titanium Co., Ltd.
Inventor： Yuta Nakajo , Kazuhiro Kumamoto , Daisuke Suzuki , Masashi Yamamoto , Matsuhide Horikawa , Hideki Fujii
Abstract: Provided is a method for producing a titanium-containing electrodeposit, which can achieve good refinement by an electrodeposition without using the Kroll method. A method for producing a titanium-containing electrodeposit, including an electrodeposition step of electrodepositing a titanium-containing electrodeposit in a chloride bath, the chloride bath being a molten salt, using an anode including a TiAlO conductive material containing titanium, aluminum, and oxygen, and a cathode, wherein, in the electrodeposition step, a current density of the cathode is in a range of 0.3 A/cm2 or more and 2.0 A/cm2 or less, and wherein the chloride bath contains 1 mol % or more of a titanium subchloride.
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Patent Agency Ranking
公开(公告)号：US20240191381A1
公开(公告)日：2024-06-13
申请号：US18287893
申请日：2022-03-14
Applicant: Toho Titanium Co., Ltd.
Inventor： Daisuke Suzuki , Yuta Nakajo , Kazuhiro Kumamoto , Matsuhide Horikawa , Hideki Fujii
IPC: C25C3/28
CPC classification number: C25C3/28
Abstract: Provided is a method for producing metal titanium by molten salt electrolysis using a conductive material containing titanium, aluminum, oxygen and other impurities. A method for producing metal titanium, wherein a refining process includes: a rough electrodeposition step of performing a molten salt electrolysis using an electrode containing a TiAlO conductive material in a chloride bath Bf to obtain a titanium-containing electrodeposit TC; and one or more refinement electrodeposition steps of performing a molten salt electrolysis using an electrode containing the titanium-containing electrodeposit TC in a chloride bath Bf, and wherein at least one of the chloride bath Bf used for the rough electrodeposition step and the chloride bath Bf used for the refinement electrodeposition step contains 30 mol % or more of magnesium chloride.
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公开(公告)号：US20240084469A1
公开(公告)日：2024-03-14
申请号：US18275509
申请日：2022-02-22
Applicant: Toho Titanium Co., Ltd.
Inventor： Takumi Kaneko , Yuta Nakajo , Daisuke Suzuki , Matsuhide Horikawa , Hideki Fujii
Abstract: A method for producing a titanium foil according to the present invention includes an electrodeposition step of performing electrolysis with electrodes including an anode and a cathode using a molten salt bath comprising titanium ions and having at least one molten chloride to deposit metal titanium onto an electrolytic surface of the cathode, wherein the electrodeposition step includes maintaining a ratio of a molar concentration of titanium ions to the total molar concentration of metal ions in the molten salt bath at 7% or more, and maintaining a temperature of the molten salt bath at 510° C. or less, and conducting a current to the electrodes under conditions where a continuous stop time of current conduction is less than 1.0 second, a current density is 0.10 A/cm2 or more and 1.0 A/cm2 or less, and a time for electrodepositing the metal titanium onto the electrolytic surface of the cathode is 120 minutes or less.
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公开(公告)号：US11649554B2
公开(公告)日：2023-05-16
申请号：US17267572
申请日：2019-07-18
Applicant: Toho Titanium Co., Ltd.
Inventor： Matsuhide Horikawa , Daisuke Suzuki , Haruka Yamamoto , Hideki Fujii
Abstract: A method for producing metal titanium by carrying out electrolysis using an anode and a cathode in a molten salt bath, the method using an anode containing metal titanium as the anode, the method comprising a titanium deposition step of depositing metal titanium on the cathode, wherein, in the titanium deposition step, a temperature of the molten salt bath is from 250° C. or more and 600° C. or less, and an average current density of the cathode in a period from the start to 30 minutes later of the titanium deposition step is maintained in a range of 0.01 A/cm2 to 0.09 A/cm2.
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公开(公告)号：US20210310140A1
公开(公告)日：2021-10-07
申请号：US17267572
申请日：2019-07-18
Applicant: Toho Titanium Co., Ltd.
Inventor： Matsuhide Horikawa , Daisuke Suzuki , Haruka Yamamoto , Hideki Fujii
Abstract: A method for producing metal titanium by carrying out electrolysis using an anode and a cathode in a molten salt bath, the method using an anode containing metal titanium as the anode, the method comprising a titanium deposition step of depositing metal titanium on the cathode, wherein, in the titanium deposition step, a temperature of the molten salt bath is from 250° C. or more and 600° C. or less, and an average current density of the cathode in a period from the start to 30 minutes later of the titanium deposition step is maintained in a range of 0.01 A/cm2 to 0.09 A/cm2.
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公开(公告)号：US09656879B2
公开(公告)日：2017-05-23
申请号：US14429588
申请日：2014-03-06
Applicant: TOHO TITANIUM CO., LTD.
Inventor： Matsuhide Horikawa , Eiichi Fukasawa
CPC classification number: C01G23/024 , B09B3/00 , B09B5/00 , C01B7/035 , C01G23/022 , C01G49/02 , C01G49/10
Abstract: A method for producing titanium tetrachloride is provided, in which valuable materials such as unreacted titanium-containing raw material, carbon raw material and chlorine can be recovered from solid recovered material generated in chlorinating process of titanium-containing raw material, and titanium-containing raw material can be efficiently used. The treatment method of titanium-containing raw material includes the steps: separating and removing impurities selectively from the titanium-containing raw material as chlorides so as to obtain high titanium-containing raw material, producing titanium tetrachloride using the high titanium-containing raw material, and performing separating process of impurities from solid recovered material byproduced in the production of titanium tetrachloride, together with selective chlorinating treatment of the titanium-containing raw material. Thus, the high titanium-containing raw material can be produced while recovering chlorine and impure oxides.
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