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    3.
    发明专利
    未知

    公开(公告)号：DE60129630T2

    公开(公告)日：2008-05-21

    申请号：DE60129630

    申请日：2001-05-07

    Applicant: TOSOH CORP

    Inventor： OKAJIMA KENGO

    IPC: C01B9/02 ,  C01D3/14 ,  C01F11/20 ,  C01F11/32

    Abstract: An object of the present invention is to provide an effective and efficientprocess for the treatment of an inorganic salt containing an organic material which can solve various problems with the prior art, i.e., process for purifying an inorganic salt containing an organic material to an extent such that it can be recovered and re-used from the standpoint of environmental protection and utilization of resources. An inorganic salt containing an organic material is granulated or subjected to chemical treatment (mixed with an alkali and/or oxidizing agent), and then subjected to heat treatment so that it is purified.

    6.
    发明专利
    未知

    公开(公告)号：DE69300791T2

    公开(公告)日：1996-06-05

    申请号：DE69300791

    申请日：1993-04-30

    Applicant: TOSOH CORP

    Inventor： OKAJIMA KENGO ,  MURAKAMI TSUGIO ,  WAKAMATSU HIROYUKI ,  SAITO HIROYUKI

    IPC: B01J31/08 ,  B01J31/10 ,  B01J47/00 ,  C02F1/42 ,  C02F1/72 ,  C02F1/76 ,  C02F1/78

    Abstract: An oxidizable substance and/or a reducible substance is removed from a liquid, such as a liquid industrial waste, by treating the liquid with a composite comprising a fluorine-containing organic cation exchanger and a metal oxide or hydroxide, supported on the cation exchanger. The metal of the metal oxide or hydroxide is selected from manganese and elements of group 1B and group 8 of the periodic table. This treatment is carried out, if required, in the presence of an oxidizing agent, or by using the composite which has previously been treated with an oxidizing agent.

    7.
    发明专利
    未知

    公开(公告)号：DE69300791D1

    公开(公告)日：1995-12-21

    申请号：DE69300791

    申请日：1993-04-30

    Applicant: TOSOH CORP

    Inventor： OKAJIMA KENGO ,  MURAKAMI TSUGIO ,  WAKAMATSU HIROYUKI ,  SAITO HIROYUKI

    IPC: B01J31/08 ,  B01J31/10 ,  B01J47/00 ,  C02F1/42 ,  C02F1/72 ,  C02F1/76 ,  C02F1/78

    Abstract: An oxidizable substance and/or a reducible substance is removed from a liquid, such as a liquid industrial waste, by treating the liquid with a composite comprising a fluorine-containing organic cation exchanger and a metal oxide or hydroxide, supported on the cation exchanger. The metal of the metal oxide or hydroxide is selected from manganese and elements of group 1B and group 8 of the periodic table. This treatment is carried out, if required, in the presence of an oxidizing agent, or by using the composite which has previously been treated with an oxidizing agent.

    METHOD FOR CRYSTALLIZING ALPHA-L-ASPARTYL-L-PHENYLALANINE METHYL ESTER
    9.
    发明专利
    METHOD FOR CRYSTALLIZING ALPHA-L-ASPARTYL-L-PHENYLALANINE METHYL ESTER 未知

    公开(公告)号：CA2089358A1

    公开(公告)日：1993-01-20

    申请号：CA2089358

    申请日：1992-07-20

    Applicant: TOSOH CORP ,  HOLLAND SWEETENER COMPANY

    Inventor： MURAKAMI TSUGIO ,  VERMIJS WINFRIED J W ,  EGASHIRA HIDETAKA ,  OKAJIMA KENGO ,  WAKAMATSU HIDETOSHI

    IPC: C07K5/072 ,  C07K5/075 ,  A23L1/236

    Abstract: 2089358 9302101 PCTABS00019 A method for crystallizing .alpha. -L-aspartyl-L-phenylalanine methyl ester (APM) by cooling. In this method, crystals of APM are subjected to crushing, and the crushed APM crystals are used as seed crystals for growing APM crystals. By the use of crushed seed crystals, the generation of fine secondary APM crystals can be suppressed, and the width to length ratio of resulting APM crystals becomes larger. As a whole, big APM crystals having improved filtering and drying properties can be obtained. Such crystals can be advantageous with regard to production, quality and handling. The precipitation of APM crystals proceeds quite efficiently with only a small quantity of crushed seed crystals. This invention also relates to crystallization of APM using in situ prepared crushed seed crystals.

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