PURIFICATION DE L'EAU AU MOYEN DE CYCLODEXTRINES
    1.
    发明授权
    PURIFICATION DE L'EAU AU MOYEN DE CYCLODEXTRINES 失效
    水与清洁环糊精

    公开(公告)号:EP0934231B1

    公开(公告)日:2000-08-23

    申请号:EP97912261.1

    申请日:1997-10-27

    IPC分类号: C02F1/28

    CPC分类号: C02F1/285 C02F1/286

    摘要: The invention concerns a method for purifying water in order to remove therefrom, at least one organic substance, in particular malodorous pollutants such as (-)geosmine and (+)2-methyl-isoborneol. This method consists in: contacting the water to be purified with a cyclodextrin of formula (I) in which R represents a hydrogen atom, a C1-C12 alkyl group or the CH3CO- acetyl group, R and R which can be identical or different, represent H or R , and n = 5, 6 or 7; for including therein the organic substance(s) to be removed, and in separating the water from the cyclodextrin.

    PURIFICATION DE L'EAU AU MOYEN DE CYCLODEXTRINES
    2.
    发明公开
    PURIFICATION DE L'EAU AU MOYEN DE CYCLODEXTRINES 失效
    水与清洁环糊精

    公开(公告)号:EP0934231A1

    公开(公告)日:1999-08-11

    申请号:EP97912261.0

    申请日:1997-10-27

    IPC分类号: C02F1

    CPC分类号: C02F1/285 C02F1/286

    摘要: The invention concerns a method for purifying water in order to remove therefrom, at least one organic substance, in particular malodorous pollutants such as (-)geosmine and (+)2-methyl-isoborneol. This method consists in: contacting the water to be purified with a cyclodextrin of formula (I) in which R1 represents a hydrogen atom, a C¿1?-C12 alkyl group or the CH3CO- acetyl group, R?2 and R3¿ which can be identical or different, represent H or R1, and n = 5, 6 or 7; for including therein the organic substance(s) to be removed, and in separating the water from the cyclodextrin.