METHOD FOR CONCENTRATING HEAVY NITROGEN ISOTOPE
    2.
    发明申请
    METHOD FOR CONCENTRATING HEAVY NITROGEN ISOTOPE 有权
    用于浓缩重氮同位素的方法

    公开(公告)号:US20090071814A1

    公开(公告)日:2009-03-19

    申请号:US12293361

    申请日:2007-03-12

    IPC分类号: B01D3/12 B01D3/02

    摘要: The object of the present invention is to provide a method for concentrating effectively the heavy nitrogen isotope 15N to 50 atom % or more. In order to achieve the object, the present invention provides a method for concentrating a heavy nitrogen isotope 15N, in which 14N15N and/or 15N2, which are molecules containing a heavy nitrogen isotope of 15N, are concentrated by distilling successively nitrogen N2 using plural distillation columns T1 to T4 each of which comprises at least one condenser C1 to C4 and at least one reboiler R1 to R4 and is arranged in series, and a part of nitrogen in the distillation is drawn out to be subjected to isotope scrambling in an isotope scrambler S1, and nitrogen after the isotope scrambling is returned to the distillation to produce nitrogen N2 with a 15N concentration of 50 atom % or more.

    摘要翻译: 本发明的目的是提供一种将重氮同位素15N有效浓缩至50原子%以上的方法。 为了实现该目的,本发明提供了一种浓缩重氮同位素15N的方法,其中通过使用多次蒸馏连续地蒸馏氮气氮来浓缩含有15N重氮同位素的分子的14N15N和/或15N2 塔T1至T4各自包括至少一个冷凝器C1至C4和至少一个再沸器R1至R4并串联布置,并且蒸馏中的一部分氮被抽出以在同位素扰流器中进行同位素加扰 S1,同位素加扰后的氮返回蒸馏,生成15N浓度为50原子%以上的氮气。

    Optical recording medium
    7.
    发明授权
    Optical recording medium 失效
    光记录介质

    公开(公告)号:US5188922A

    公开(公告)日:1993-02-23

    申请号:US703056

    申请日:1991-05-17

    摘要: The present invention relates to an optical recording medium laminated having on a substrate a recording layer comprising an organic thin film containing a silicon naphthalocyanine compound represented by the following general formula (I): ##STR1## wherein L and L' each represents a group capable of linking to silicon.

    摘要翻译: 本发明涉及层叠在光学记录介质上的记录层,该记录层包括含有由以下通式(I)表示的硅萘酞菁化合物的有机薄膜:其中L和L各自表示 能够连接硅的基团。

    Method for concentrating oxygen isotope or isotopes
    10.
    发明授权
    Method for concentrating oxygen isotope or isotopes 有权
    浓缩氧同位素或同位素的方法

    公开(公告)号:US08337802B2

    公开(公告)日:2012-12-25

    申请号:US11989431

    申请日:2006-08-16

    IPC分类号: B01D59/34 B01D59/00

    摘要: The method for concentrating an oxygen isotope or isotopes of the present invention combines the step of concentrating 17O and/or the step of depleting 18O that utilizes photodissociation of ozone by a laser beam with an oxygen distillation step that concentrates the oxygen isotope. At this time, it is preferable to carry out a step of isotope scrambling in addition to the above. When both a step of concentrating 17O and a step of depleting 18O are carried out, whichever thereof may be done first prior to the other. Also these steps may be placed either before or after the oxygen distillation step. Moreover, at least one of said oxygen distillation step, the concentrating 17O step, the depleting 18O step and the isotope scrambling step is preferably carried out twice or more.

    摘要翻译: 用于浓缩本发明的氧同位素或同位素的方法结合了利用氧浓缩氧同位素的氧蒸馏步骤,通过激光束利用17O浓缩和/或耗尽18O的步骤来利用臭氧的光解作用。 此时,除了上述以外,优选进行同位素扰动的步骤。 当进行浓缩步骤17O和耗尽步骤18O的步骤时,可以首先在另一个之前进行。 也可以在氧蒸馏步骤之前或之后放置这些步骤。 此外,优选进行两次或更多次的所述氧蒸馏步骤,浓缩17O步骤,耗尽18O步骤和同位素加扰步骤中的至少一个。