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    MANUFACTURE OF BARIUM FERRITE MAGNETIC POWDER
    61.
    发明专利
    MANUFACTURE OF BARIUM FERRITE MAGNETIC POWDER 失效

    公开(公告)号：JPH0448704A

    公开(公告)日：1992-02-18

    申请号：JP15524190

    申请日：1990-06-15

    Applicant: TOSOH CORP

    Inventor： MATSUI KOJI ,  UEMA TSUTOMU ,  MITSUI HIDEO ,  MURAKAMI TSUGIO

    IPC: C01G49/00 ,  H01F1/11

    Abstract: PURPOSE:To simply manufacture barium ferrite magnetic powder being symmetricalfine grains, having high dispersibility and a plate shape, moreover a big magnetization value by spraying slurry mainly containing a barium hydroxide water solution and iron oxide and/or hydrated iron oxide in a gas atmosphere at not less than 700 deg.C to be subjected to thermal decomposition. CONSTITUTION:Slurry mainly containing a barium hydroxide water solution and iron oxide and/or iron hydroxide is used as a raw material. Primary iron oxide or the like is mentioned as iron oxide and primary iron or the like is mentioned as hydrated iron oxide. On the other hand, as to barium hydroxide to be contained a raw material slurry, concentration of a water solution is desirably to be set within a range of a solution degree of barium hydroxide. Further, as a preparation method of the raw material slurry, a dispersion mixing type stirrer is used. Next, this raw material slurry is sprayed in a gas atmosphere of steam or the like above 700 deg.C to be subjected to thermal decomposition. By this method, barium ferrite magnetic powder having a grain diameter of 0.01 to 0.3mum having high dispersibility, a plate shape and a high magnetization value can be obtained economically and with good efficiency.

    SEPARATION OF RARE EARTH ELEMENT FROM EACH OTHER
    62.
    发明专利
    SEPARATION OF RARE EARTH ELEMENT FROM EACH OTHER 失效

    公开(公告)号：JPH02133532A

    公开(公告)日：1990-05-22

    申请号：JP28373388

    申请日：1988-11-11

    Applicant: TOSOH CORP

    Inventor： ETO NOBUO ,  MURAKAMI TSUGIO ,  YOSHIMURA RYOJI ,  MATSUDA TAKAO ,  TAKADA YUTAKA

    IPC: C22B59/00

    Abstract: PURPOSE:To recover high-purity rare earth elements at a high recovery rate by using a spherical cation exchanger having a sulfonic acid group and a weakly acidic cation exchange group for the cation exchanger at the time of separating the rare earth elements from each other by using a complex forming agent and the cation exchanger. CONSTITUTION:The spherical cation exchanger having the sulfonic acid group and the weakly acidic cation exchange group is used for the cation exchanger at the time of subjecting the rare earth elements to a chromatographic sepn. by using the complex forming agent and the cation exchanger. The sphericity of >=90% of this cation exchanger is about =80% of the entire particle is about 0.5 to 1.5 times the average grain size. The total cation exchange capacity is specified to about 0.5 to 10meq/g on a dry basis. The weakly acidic cation exchange group is preferably a carboxylic acid group and the exchange capacity thereof is preferably about 5 to 90% of the total cation exchange capacity. EDTA, HEDTA, DCPA, etc., are used for the complex forming agent and the pH of the aq. soln. thereof is specified to about 4 to 10.

    SEPARATION OF RARE EARTH ELEMENTS
    65.
    发明专利
    SEPARATION OF RARE EARTH ELEMENTS 失效

    公开(公告)号：JPS63162528A

    公开(公告)日：1988-07-06

    申请号：JP30888386

    申请日：1986-12-26

    Applicant: TOSOH CORP

    Inventor： ETO NOBUO ,  MURAKAMI TSUGIO

    IPC: C01F17/00 ,  B01D15/04 ,  B01J39/26

    Abstract: PURPOSE:To effectively separate and refine rare earth elements with high purity, by using a specified type aluminum ion and separating the rare earth element in the ion exchange method. CONSTITUTION:The rare earth element is developed and eluted by using an aluminum ion as a holding ion of an ion exchanger and/or allowing the aluminum ion to exist in the aq. soln. of the complex forming agent. When the aluminum ion exists in the aq. soln. of the complex forming agent, TL point is regulated by the concentration of the aluminum ion. Because the time for developing and eluting the rare earth element is extremely prolonged in the case that the aluminum ion concentration is excess, the aluminum ion amt. is preferable to >=80% in the molar ratio to the complex forming agent. And when the aq. soln. of the complex forming agent is regulated to 4-10pH, the complex formation rapidly advances and no rare earth element ion is subjected to precipitate by hydrolysis.

    Apparatus for dissolving and sterilizing solid chemical agent
    67.
    发明专利
    Apparatus for dissolving and sterilizing solid chemical agent 有权
    用于溶解和灭菌固体化学试剂的装置

    公开(公告)号：JP2013107057A

    公开(公告)日：2013-06-06

    申请号：JP2011255483

    申请日：2011-11-22

    Applicant: Tosoh Corp ,  東ソー株式会社 ,  Tohoku Tosoh Kagaku Kk ,  東北東ソー化学株式会社

    Inventor： IKEDA KAZUHIKO ,  ITO TARO ,  MURAKAMI TSUGIO

    IPC: C02F1/50

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus which is capable of controlling the dissolution amount of a solid chemical agent and does not need power and an electric circuit when injecting a chemical agent solution.SOLUTION: As for a sterilizing apparatus including a chemical chamber part for filling a water soluble solid chemical agent, a perforated plate at a chemical chamber bottom part, a chemical agent solution tank, a branch pipe of treat water, and a pipe for introducing the treat water into the apparatus, the apparatus for dissolving and sterilizing a solid chemical agent to be used includes a float type fixed water level valve for controlling a liquid surface of the solution tank; a liquid surface adjustment chamber for installing the float type fixed water level valve; and an ejector for injecting the chemical agent solution to the treat water branch pipe.

    Abstract translation: 要解决的问题：提供一种能够控制固体化学试剂的溶解量并且在注射化学试剂溶液时不需要电力和电路的装置。 解决方案：对于包括用于填充水溶性固体化学试剂的化学室部分，化学室底部的多孔板，化学试剂溶液罐，处理水的分支管和管道的灭菌装置 为了将处理水引入到设备中，用于使用的固体化学试剂的溶解和灭菌装置包括：用于控制溶液罐的液面的浮子式固定水位阀; 用于安装浮子式固定水位阀的液面调节室; 以及用于将化学试剂溶液注射到处理水分支管的喷射器。 版权所有（C）2013，JPO＆INPIT

    COMBINED PRODUCTION OF HIGHER BLEACHING POWDER AND AQUEOUS SOLUTION OF CALCIUM CHLORIDE
    68.
    发明专利
    COMBINED PRODUCTION OF HIGHER BLEACHING POWDER AND AQUEOUS SOLUTION OF CALCIUM CHLORIDE 失效

    公开(公告)号：JP2000313606A

    公开(公告)日：2000-11-14

    申请号：JP12243099

    申请日：1999-04-28

    Applicant: TOSOH CORP

    Inventor： ABE YOSHIO ,  OHASHI KOICHI ,  GOTO NOBUYUKI ,  MURAKAMI TSUGIO

    IPC: C01B11/06 ,  C01F11/24 ,  C01F11/28

    Abstract: PROBLEM TO BE SOLVED: To provide a process for rationally, economically and industrially producing higher bleaching powder in combination with an aqueous solution of calcium chloride from calcium chloride and calcium hypochlorite formed by the chlorination of caustic lime. SOLUTION: The objective process is carried out by (i) producing milk of lime, (ii) adding a prescribed columnar calcium hypochlorite dihydrate as a seed crystal in the crystallization of calcium hypochlorite dihydrate produced by the chlorination of lime of milk to obtain a slurry of coarse calcium hypochlorite dihydrate, (iii) separating the coarse calcium hypochlorite dihydrate slurry into a wet cake of calcium hypochlorite dihydrate and a prescribed mother liquor, (iv) drying the wet cake of calcium hypochlorite dihydrate to obtain higher bleaching powder and (v) adding hydrochloric acid to the prescribed mother liquor obtained by the step (iii) or bringing the mother liquor into contact with at least one kind of oxide of Mn, Fe, Co, Ni, Cu or Pd to decompose the calcium hypochlorite and obtain an aqueous solution of calcium chloride.

    TREATMENT OF WASTE LIQUID CONTAINING ETHYLENEDIAMINE
    69.
    发明专利
    TREATMENT OF WASTE LIQUID CONTAINING ETHYLENEDIAMINE 失效

    公开(公告)号：JPH08150389A

    公开(公告)日：1996-06-11

    申请号：JP29661394

    申请日：1994-11-30

    Applicant: TOSOH CORP

    Inventor： MATSUNAGA HIDEAKI ,  MURAKAMI TSUGIO ,  KUMOI SADAKATSU

    IPC: C02F1/28

    Abstract: PURPOSE: To provide the treatment with which valuable ethylenediamine can be recovered from a waste liquid contg. ethylenediamine and thereby, certain contributions to the effective utilization of resources and environmental conservation measures are made. CONSTITUTION: This treatment comprises allowing an ethylenediamine dihydrochloride solution contg. a silane coupling agent and/or a titanium coupling agent to make with activated carbon to adsorb the silane coupling agent and/or titanium coupling agent on the activated carbon and removing these coupling agents from the solution to recover a valuable ethylenediamine solution.

    BLEACHING POWDER COMPOSITION
    70.
    发明专利
    BLEACHING POWDER COMPOSITION 失效

    公开(公告)号：JPH0724471A

    公开(公告)日：1995-01-27

    申请号：JP17143193

    申请日：1993-07-12

    Applicant: TOSOH CORP

    Inventor： KOBAYASHI YOSHIHIKO ,  SHIBUYA HIDEO ,  SAITO TOMOMI ,  MURAKAMI TSUGIO

    IPC: C02F5/08 ,  C02F1/50 ,  C02F5/00

    Abstract: PURPOSE:To prevent the of scale and to eliminate the eutrophic the eutrophic problem of rivers, lakes and marshes by preparing a bleaching powder composition used for sterilization, disinfection or the like after dissolving in water by using a bleaching powder composed mainly of calcium hypochloride and an aluminosilicate. CONSTITUTION:In a bleaching powder dissolving equipment for the sterilizing or disinfecting swimming pool water or clean water, the bleaching powder composition prepared by using the bleaching powder composed mainly of calcium hypochloride and the aluminosilicate is used. As the aluminosilicate, for instance, crystalline or porous amorphous one such as Na-A type zeorite, Na-Y type zeorite or mordenite

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