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    METHOD FOR PREPARING TRIFLUOROMETHANESULPHINIC ACID
    3.
    发明申请
    METHOD FOR PREPARING TRIFLUOROMETHANESULPHINIC ACID 有权
    制备三氟甲磺酸的方法

    公开(公告)号：US20120197039A1

    公开(公告)日：2012-08-02

    申请号：US12744875

    申请日：2008-11-25

    申请人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    发明人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    IPC分类号： C07C313/04

    CPC分类号： C07C313/04

    摘要： The present invention relates to a method for preparing a highly pure trifluoromethanesulphinic acid. The method of the invention for preparing a highly pure trifluoromethanesulphinic acid, starting from an aqueous mixture comprising a trifluoromethanesulphinic acid salt, a trifluoroacetic acid salt and saline impurities resulting from the method for preparing same, is characterized in that said mixture is subjected to the following operations:- acidification such that the trifluoroacetic acid salt and the triflinic acid salt are released in an acid form,- separation of the trifluoroacetic acid and trifluoromethanesulphinic acid by distillation enabling the trifluoroacetic acid to be recovered at the top of the distillation and the trifluoromethanesulphinic acid to be recovered at the bottom of the distillation,- separation by distillation of the trifluoromethanesulphinic acid present in the distillation residue previously obtained.

    摘要翻译： 本发明涉及一种制备高纯度三氟甲磺酸的方法。 本发明制备高纯度三氟甲磺酸的方法，其特征在于，由包含三氟甲磺酸盐，三氟乙酸盐和由其制备方法得到的盐水杂质的含水混合物开始，将所述混合物进行以下步骤 操作：酸化使得三氟乙酸盐和三氟甲磺酸盐以酸的形式释放， - 通过蒸馏分离三氟乙酸和三氟甲磺酸，使三氟乙酸在蒸馏顶部回收，三氟甲磺酸 在蒸馏的底部回收， - 通过蒸馏分离先前获得的蒸馏残余物中的三氟甲磺酸。

    Method for preparing a trifluoromethanesulfinic acid salt
    6.
    发明授权
    Method for preparing a trifluoromethanesulfinic acid salt 有权
    三氟甲磺酸盐的制备方法

    公开(公告)号：US08471059B2

    公开(公告)日：2013-06-25

    申请号：US12745196

    申请日：2008-11-25

    申请人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    发明人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    IPC分类号： C07C313/04

    CPC分类号： C07C313/04

    摘要： The present invention relates to a method for preparing a salt of trifluoromethanesulphinic acid termed “triflinic acid”. More specifically, the invention relates to a method for preparing a highly pure triflinic acid salt. The method of the invention for preparing a highly pure triflinic acid salt, starting from an aqueous mixture comprising the latter combined with a trifluoroacetic acid salt and saline impurities resulting from the method for preparing same, is characterized in that said mixture is subjected to the following operations: —first controlled acidification such that the trifluoroacetic acid salt is essentially released in the acid form thereof, the majority of the triflinic acid remaining in a salified form, —optional separation of the salts originating from the acid having been used for the acidification and recovery of an aqueous phase, —separation of the trifluoroacetic acid from the separated aqueous phase comprising the alkaline salt of triflinic acid, trifluoroacetic acid, triflinic acid and the excess strong acid, therefore resulting in an aqueous phase depleted of trifluoroacetic acid but comprising the alkaline salt of triflinic acid, —recovery of the alkaline salt of triflinic acid from the aqueous phase.

    摘要翻译： 本发明涉及一种称为“三氟酸”的三氟甲磺酸的盐的制备方法。 更具体地说，本发明涉及制备高纯度三氟酸盐的方法。 本发明制备高纯度三氟酸盐的方法，其特征在于，将含有后者与由三氟乙酸盐组合的含水混合物和由其制备方法产生的盐水杂质开始混合，其特征在于所述混合物经受以下 操作：首先控制酸化，使得三氟乙酸盐基本上以其酸形式释放，大部分三氟酸残留成盐化形式， - 用于酸化的源自酸的盐的可选分离和 水相的回收，三氟乙酸从包含三氟酸，三氟乙酸，三氟酸的碱金属盐和过量的强酸的分离的水相中分离，因此导致水相中缺乏三氟乙酸但含有碱 三氟酸盐，三氟酸碱性碱性盐的还原 d从水相中。

    METHOD FOR PREPARING A TRIFLUOROMETHANESULFINIC ACID SALT
    9.
    发明申请
    METHOD FOR PREPARING A TRIFLUOROMETHANESULFINIC ACID SALT 有权
    制备三氟甲磺酸盐的方法

    公开(公告)号：US20110034724A1

    公开(公告)日：2011-02-10

    申请号：US12745196

    申请日：2008-11-25

    申请人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    发明人： Vincent Schanen ,  Olivier Buisine ,  François Metz ,  Bernard Besson

    IPC分类号： C07C303/44

    CPC分类号： C07C313/04

    摘要： The present invention relates to a method for preparing a salt of trifluoromethanesulphinic acid termed “triflinic acid”. More specifically, the invention relates to a method for preparing a highly pure triflinic acid salt. The method of the invention for preparing a highly pure triflinic acid salt, starting from an aqueous mixture comprising the latter combined with a trifluoroacetic acid salt and saline impurities resulting from the method for preparing same, is characterized in that said mixture is subjected to the following operations: first controlled acidification such that the trifluoroacetic acid salt is essentially released in the acid form thereof, the majority of the triflinic acid remaining in a salified form, optional separation of the salts originating from the acid having been used for the acidification and recovery of an aqueous phase, separation of the trifluoroacetic acid from the separated aqueous phase comprising the alkaline salt of triflinic acid, trifluoroacetic acid, triflinic acid and the excess strong acid, therefore resulting in an aqueous phase depleted of trifluoroacetic acid but comprising the alkaline salt of triflinic acid, recovery of the alkaline salt of triflinic acid from the aqueous phase.

    摘要翻译： 本发明涉及一种称为“三氟酸”的三氟甲磺酸的盐的制备方法。 更具体地说，本发明涉及制备高纯度三氟酸盐的方法。 本发明制备高纯度三氟酸盐的方法，其特征在于，将含有后者与由三氟乙酸盐组合的含水混合物和由其制备方法产生的盐水杂质开始混合，其特征在于所述混合物经受以下 操作：首先控制酸化，使得三氟乙酸盐基本上以其酸形式释放，大部分三氟氯酸保持为盐化形式，任选分离源自酸的盐，用于酸化和回收 水相，从分离的水相中分离三氟乙酸，其中包含三氟酸，三氟乙酸，三烯丙酸和过量的强酸的碱性盐，从而导致三氟乙酸的水相贫化，但是包含三氟甲磺酸的碱性盐 酸，三氟酸盐碱性盐的回收率 水相。