公开(公告)号：ES2681976T3

公开(公告)日：2018-09-17

申请号：ES13777948

申请日：2013-04-17

Applicant: TOSOH CORP

Inventor： IWATA EIICHI ,  YAMASHITA MIKI ,  DOI MASAHARU

IPC: C01G45/02 ,  B82Y30/00 ,  C01G45/00 ,  C01G45/12 ,  C30B7/12 ,  C30B29/16 ,  C30B30/02 ,  H01M4/505 ,  H01M4/52 ,  H01M4/525

Abstract: Partículas de tetraóxido de trimanganeso poroso que llevan partículas primarias de tetraóxido de trimanganeso aglomeradas, cuyo tamaño medio de partícula primaria es como máximo de 2 μm, siendo el volumen de poro de al menos 0,5 ml/g, medido mediante una técnica de intrusión de mercurio.

公开(公告)号：EP2840068A4

公开(公告)日：2016-01-06

申请号：EP13777948

申请日：2013-04-17

Applicant: TOSOH CORP

Inventor： IWATA EIICHI ,  YAMASHITA MIKI ,  DOI MASAHARU

IPC: C01G45/02 ,  B82Y30/00 ,  C01G45/00 ,  C01G45/12 ,  C30B7/12 ,  C30B29/16 ,  C30B30/02 ,  H01M4/505 ,  H01M4/52 ,  H01M4/525

CPC classification number: C30B7/12 ,  B82Y30/00 ,  C01G45/02 ,  C01G45/1221 ,  C01P2002/32 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  C01P2006/80 ,  C30B29/16 ,  C30B30/02 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  Y10T428/2982

Abstract: To provide trimanganese tetraoxide which has high reactivity with a lithium compound and is excellent in the handling efficiency, and which is suitable as a manganese material of a lithium manganese oxide, and its production process. Trimanganese tetraoxide particles comprising trimanganese tetraoxide primary particles having an average primary particle size of at most 2 µm agglomerated, the pore volume of pores being at least 0.4 mL/g. The most frequent pores are preferably pores having a diameter of at most 5 µm. The trimanganese tetraoxide particles can be obtained by a process for producing trimanganese tetraoxide particles, which comprises a crystallization step of directly crystallizing trimanganese tetraoxide from a manganese salt aqueous solution, wherein in the crystallization step, the manganese salt aqueous solution and an alkali aqueous solution are mixed so that the oxidation-reduction potential is at least 0 mV and OH - /Mn 2+ (mol/mol) is at most 0.55, to obtain a slurry, and the solid content concentration of the slurry is adjusted to be at most 2 wt%.

公开(公告)号：DE3780060T2

公开(公告)日：1993-02-25

申请号：DE3780060

申请日：1987-04-07

Applicant: TOSOH CORP

Inventor： FUKUDA KENICHI ,  MORI TAKASHI ,  KURAUCHI YASUHIRO ,  DOI MASAHARU ,  SUEMATSU TETSUYA

IPC: C08J5/22 ,  C25B1/00

Abstract: A method for producing a metal salt by electrolysis in an electrolytic cell comprising an anode compartment and a cathode compartment partitioned by a diaphragm, disposing in the anode compartment a metal anode soluble in the aqueous solution, and conducting electrolysis to dissolve the metal anode, wherein the diaphragm is a fluorinated anion exchange membrane made of a copolymer having repeating units of the formula: wherein X is F or CF3, l is an integer of from 0 to 5, m is 0 or 1, n is an integer of 1 to 5, each of p and q is a positive number and the ratio of p/q is from 2 to 16, and Y is a group involving a quaternary ammonium group.

公开(公告)号：DE3780060D1

公开(公告)日：1992-08-06

申请号：DE3780060

申请日：1987-04-07

Applicant: TOSOH CORP

Inventor： FUKUDA KENICHI ,  MORI TAKASHI ,  KURAUCHI YASUHIRO ,  DOI MASAHARU ,  SUEMATSU TETSUYA

IPC: C08J5/22 ,  C25B1/00

Abstract: A method for producing a metal salt by electrolysis in an electrolytic cell comprising an anode compartment and a cathode compartment partitioned by a diaphragm, disposing in the anode compartment a metal anode soluble in the aqueous solution, and conducting electrolysis to dissolve the metal anode, wherein the diaphragm is a fluorinated anion exchange membrane made of a copolymer having repeating units of the formula: wherein X is F or CF3, l is an integer of from 0 to 5, m is 0 or 1, n is an integer of 1 to 5, each of p and q is a positive number and the ratio of p/q is from 2 to 16, and Y is a group involving a quaternary ammonium group.

公开(公告)号：JPH06171943A

公开(公告)日：1994-06-21

申请号：JP32534292

申请日：1992-12-04

Applicant: TOSOH CORP

Inventor： DOI MASAHARU ,  IWATA HIDEKAZU ,  MORI TAKASHI

IPC: C01G25/02

Abstract: PURPOSE:To obtain ZrO2 powder excellent in purity and the strength of sintered compact by hydrolyzing after heating a zirconium salt aq. solution before adding an alkali so as to keep pH above a specific value and separating and calcining the resultant hydrated zirconia particle. CONSTITUTION:An aq. solution containing a zirconium salt (e.g. zirconium chloride) of preferably

公开(公告)号：JPH05147944A

公开(公告)日：1993-06-15

申请号：JP34168691

申请日：1991-12-02

Applicant: TOSOH CORP

Inventor： UEMA TSUTOMU ,  DOI MASAHARU ,  OKAI MICHIJI

IPC: C01G25/02

Abstract: PURPOSE:To obtain high purity zirconium oxide powder having uniformly controlled particle diameter and excellent dispersibility of particles. CONSTITUTION:An aq. soln. of zirconium salts including zirconium oxide hydrate and an alkali soln. are fed into a reactional system and brought into contact with each other while maintaining a constant pH in the reactional system. The resulting precipitate is separated, dried and fired to produce zirconium oxide powder.

公开(公告)号：JPH0333793B2

公开(公告)日：1991-05-20

申请号：JP20267283

申请日：1983-10-31

Applicant: TOSOH CORP

Inventor： MORI TAKASHI ,  DOI MASAHARU

IPC: C25B11/03 ,  C25B1/46 ,  C25B9/00 ,  C25B9/08 ,  C25B11/02

公开(公告)号：JPH06171944A

公开(公告)日：1994-06-21

申请号：JP33044592

申请日：1992-12-10

Applicant: TOSOH CORP

Inventor： IWATA HIDEKAZU ,  DOI MASAHARU ,  MORI TAKASHI

IPC: C01G25/02

Abstract: PURPOSE:To obtain ZrO2 powder excellent in purity and the strength of sintered compact by hydrolyzing by heating a zirconium salt aq. solution in the coexistence of non-crystalline hydrated zirconia before neutralizing and separating and calcining the hydrated zirconia particle. CONSTITUTION:An aq. solution containing a zirconium salt (e.g. zirconium chloride) of preferably

公开(公告)号：JPH0525673A

公开(公告)日：1993-02-02

申请号：JP20457091

申请日：1991-07-22

Applicant: TOSOH CORP

Inventor： SUEMATSU TETSUYA ,  SAKAMOTO KENJI ,  DOI MASAHARU ,  YOSHIDA SETSUO ,  MORI TAKASHI

IPC: C25B9/00 ,  C25B9/08 ,  C25B15/00

Abstract: PURPOSE:To broaden the fluctuation range of current density and brine concentration of an anode side by specifying the ratio of volume in the upper part of the electrolytic face of an anode chamber or the anode chamber and a cathode chamber in the electrolyzer of sodium chloride and effective electrolytic area and holding a liquid-gas mixed layer to at least the electrolytic face. CONSTITUTION:The ratio V/S of volume V in the upper part of the electrolytic face of an anode chamber 1 or the anode chamber 1 and a cathode chamber 2 in the electrolyzer of sodium chloride and effective electrolytic area S is regulated to >=0.1 (decimeter). In electrolysis of sodium chloride wherein this electrolyzer is used, a liquid-gas mixed layer 14 is maintained to at least the electrolytic face. By the above-mentioned method, even when the electrolyzer is operated at 8-20kA/m electrolytic current density, stable electrolytic voltage having the range of electrolytic voltage of + or -20mV is shown similarly to a time of 2-4kA/m current density.

公开(公告)号：JPH04198028A

公开(公告)日：1992-07-17

申请号：JP32235190

申请日：1990-11-28

Applicant: TOSOH CORP

Inventor： OKADA MASAKI ,  YOSHIDA SETSUO ,  DOI MASAHARU ,  MORI TAKASHI

IPC: C01G45/00 ,  H01M4/505 ,  H01M10/052

Abstract: PURPOSE:To obtain fine particles of LiMn2O4 having large surface area and suitable as an anode of a non-aqueous lithium accumulator, etc., by mixing an Li material to an MoO2 having a prescribed BET specific surface area and a theta-type crystal structure and baking the mixture. CONSTITUTION:Manganese dioxide having theta-type crystal structure and a BET specific surface area of 150-500m /g is mixed with a lithium material (e.g. lithium oxide) and the mixture is baked to obtain LiMn2O4) consisting of particles having particle diameter of