公开(公告)号：US20190185597A1

公开(公告)日：2019-06-20

申请号：US15846789

申请日：2017-12-19

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Motoki Hosaka ,  Toshihiko Sugano ,  Tsutomu Uzawa

IPC: C08F110/06

Abstract: A method for producing a solid catalyst component includes bringing a magnesium compound, a titanium halide compound, and one or more internal electron donor compounds into contact with each other to effect a reaction; washing the resulting product with a first inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of 8.0 to 9.0; washing the resulting intermediate product in the absence of the titanium halide compound with a second inert organic wash solvent that includes a hydrocarbon compound and does not have reactivity with the titanium halide compound, but has a solubility parameter (SP) of more than 9.0; and washing the resulting product in the absence of the titanium halide compound with a third inert organic wash solvent that does not have reactivity with the titanium halide compound, and has a solubility parameter (SP) of less than 8.0.

公开(公告)号：US10246530B2

公开(公告)日：2019-04-02

申请号：US15634410

申请日：2017-06-27

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Motoki Hosaka ,  Toshihiko Sugano ,  Tsutomu Uzawa

IPC: C08F10/06 ,  C08F10/02

Abstract: A method for producing a solid catalyst for olefin (co)polymerization includes bringing into contact with each other a magnesium compound, a tetravalent titanium halide compound, an organic compound represented the following general formula (1) R1k(C6H4-k)(COOR2)(COOR3)  (1) and an organic compound represented the following general formula (2) R4R5C═C (COOR6)(COOR7)  (2) wherein R1 is a halogen atom or an alkyl group, R2 and R3 are a linear alkyl group, R4 and R5 are independently an atom or group selected from a hydrogen atom, halogen, a linear alkyl group, a branched alkyl group a vinyl group, a linear or branched alkenyl group, a cycloalkenyl group, an aromatic hydrocarbon group, and R6 and R7 are independently a linear alkyl group, a branched alkyl group, a vinyl group, a linear or branched alkenyl group a cycloalkyl group, a cycloalkenyl group, or an aromatic hydrocarbon group.

公开(公告)号：US10011669B2

公开(公告)日：2018-07-03

申请号：US14770974

申请日：2014-02-05

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshihiko Sugano ,  Motoki Hosaka ,  Toshiya Uozumi

IPC: C08F210/06 ,  C08F297/08

CPC classification number: C08F210/06 ,  C08F297/08 ,  C08F210/16 ,  C08F2500/12 ,  C08F10/00 ,  C08F4/651 ,  C08F2/001 ,  C08F4/6492 ,  C08F4/6465

Abstract: A method for producing a propylene-based block copolymer ensures excellent olefin polymerization activity and activity with respect to hydrogen (hydrogen response) during polymerization, and produces a propylene-based block copolymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes copolymerizing propylene and an α-olefin in the presence of a catalyst that includes (I) a solid catalyst component that includes titanium, magnesium, a halogen, and a compound represented by R1O—C(═O)—O—Z—OR2, and (II) a compound represented by R3pAlQ3-p, to obtain a propylene-based block copolymer.

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.

公开(公告)号：US09796598B2

公开(公告)日：2017-10-24

申请号：US14777972

申请日：2014-03-14

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Naomichi Hori ,  Takuma Yoshida

IPC: C01G23/00 ,  B02C17/14

CPC classification number: C01G23/005 ,  B02C17/14 ,  C01P2004/61

Abstract: A method for producing a potassium titanate easily and inexpensively produces a potassium titanate that exhibits high thermal stability and has a significantly low fibrous potassium titanate content. The method for producing a potassium titanate includes calcining a raw material mixture by heating the raw material mixture to a maximum calcination temperature that exceeds 1000° C. while controlling the heating rate from 1000° C. to the maximum calcination temperature to 15° C./min or less to obtain a calcine, and cooling the calcine while controlling the cooling rate from the maximum calcination temperature to 500° C. to 100° C./min or more, followed by grinding, the raw material mixture including a titanium compound and a potassium compound so that the molar ratio (number of moles of titanium compound on a titanium atom basis/number of moles of potassium compound on a potassium atom basis) of the number of moles of the titanium compound on a titanium atom basis to the number of moles of the potassium compound on a potassium atom basis is 2.7 to 3.3.

公开(公告)号：US20150240001A1

公开(公告)日：2015-08-27

申请号：US14427099

申请日：2013-09-24

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Motoki Hosaka ,  Hidetoshi Umebayashi ,  Toshihiko Sugano

IPC: C08F110/06 ,  C08F210/06 ,  C08F299/02

CPC classification number: C08F110/06 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F299/02 ,  C08F10/00 ,  C08F4/6548 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/24 ,  C08F4/6492 ,  C08F4/651 ,  C08F4/6465

Abstract: A solid catalyst component for olefin polymerization makes it possible to polymerize an olefin with high polymerization activity when used for an olefin polymerization catalyst, and produce an olefin polymer having a low fine powder content, a low coarse powder content, and a low volatile organic compound (VOC) content in high yield. The solid catalyst component for olefin polymerization is produced by suspending (a) a dialkoxymagnesium, and (b) at least one alcohol selected from ethanol, n-propanol, n-butanol, isopropanol, isobutanol, and t-butanol, in an inert organic solvent so that the total amount of the alcohol is 0.5 to 1.5 parts by mass based on 100 parts by mass of the dialkoxymagnesium, to prepare a suspension, and bringing (c) an internal electron donor and (d) a titanium halide compound into contact with the suspension.

Abstract translation: 用于烯烃聚合的固体催化剂组分使得可以在用于烯烃聚合催化剂时聚合具有高聚合活性的烯烃，并且制备具有低细粉末含量，低粗粉末含量和低挥发性有机化合物的烯烃聚合物 （VOC）含量高产。 用于烯烃聚合的固体催化剂组分通过将（a）二烷氧基镁和（b）至少一种选自乙醇，正丙醇，正丁醇，异丙醇，异丁醇和叔丁醇的醇悬浮在惰性有机物中来制备 溶剂，使得相对于100质量份的二烷氧基镁，醇的总量为0.5〜1.5质量份，制备悬浮液，并使（c）内电子给体和（d）卤化钛化合物接触 与暂停。

公开(公告)号：US20150166693A1

公开(公告)日：2015-06-18

申请号：US14407184

申请日：2013-07-10

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Motoki Hosaka ,  Noriaki Nakamura ,  Toshihiko Sugano

IPC: C08F10/06

CPC classification number: C08F10/06 ,  C08F110/06 ,  C08F4/654 ,  C08F4/6465 ,  C08F2500/12 ,  C08F2500/15 ,  C08F210/06 ,  C08F210/16 ,  C08F2/001

Abstract: A method for producing a solid catalyst component for olefin polymerization produces a novel solid catalyst component for olefin polymerization that achieves excellent olefin polymerization activity and activity with respect to hydrogen during polymerization, and can produce an olefin polymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes a first step that brings a magnesium compound, a tetravalent titanium halide compound, and one or more first internal electron donor compounds selected from specific aromatic dicarboxylic diesters into contact with each other to effect a reaction, followed by washing, a second step that brings a tetravalent titanium halide compound and one or more second internal electron donor compounds into contact with a product obtained by the first step to effect a reaction, followed by washing, and a third step that brings one or more third internal electron donor compounds into contact with a product obtained by the second step to effect a reaction.

Abstract translation: 一种用于烯烃聚合的固体催化剂组分的制备方法产生用于烯烃聚合的新型固体催化剂组分，其在聚合过程中实现优异的烯烃聚合活性和相对于氢的活性，并且可以制备出显示出高MFR，高立构规整性的烯烃聚合物， 刚性好。 该方法包括使镁化合物，四价卤化钛化合物和选自特定芳族二羧酸二酯的一种或多种第一内电子给体化合物彼此接触以进行反应，随后进行洗涤的第一步骤，第二步骤 其将四价卤化钛化合物和一种或多种第二内电子给体化合物与通过第一步获得的产物接触以进行反应，随后进行洗涤，以及第三步，将一种或多种第三内电子给体化合物引入 与通过第二步获得的产物接触以进行反应。

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

IPC: C25D3/56 ,  C22C14/00

CPC classification number: C25D3/56 ,  C22C14/00

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.

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.

公开(公告)号：US11912796B2

公开(公告)日：2024-02-27

申请号：US16977599

申请日：2019-01-25

Applicant: TOHO TITANIUM CO., LTD.

Inventor： Toshiya Uozumi ,  Tetsuya Morioka ,  Keiichi Kurosaki ,  Teppei Ishikawa

IPC: C08F210/06 ,  C08F10/06 ,  C08F2/00 ,  C08F4/656 ,  C08F297/08 ,  C08F4/658 ,  C08F4/657

CPC classification number: C08F10/06 ,  C08F210/06 ,  C08F297/08 ,  C08F2/001 ,  C08F4/656 ,  C08F4/657 ,  C08F4/658

Abstract: Provided is a novel olefin polymer which is excellent in lightness and moldability, has high rigidity and yields molded products excellent in flexural elasticity. The olefin polymer includes a propylene initial polymerization product formed in the presence of an olefin polymerization catalyst which is a contact reaction product of an olefin polymerization solid catalyst component containing a titanium atom, a magnesium atom, a halogen atom and an internal electron donating compound, at least one organoaluminum compound selected from the compounds of the general formula (I), and a first external electron donating compound; and a polypropylene part formed of a propylene polymerization product formed in the presence of the olefin polymerization catalyst and a second external electron donating compound higher in adsorption to the surface of the olefin polymerization solid catalyst component than the first external electron donating compound.