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    Separation of C.sub.8 aromatic isomers
    1.
    发明授权
    Separation of C.sub.8 aromatic isomers 失效
    分离C8芳族异构体

    公开(公告)号：US4255607A

    公开(公告)日：1981-03-10

    申请号：US69420

    申请日：1979-08-24

    申请人： Tetsuya Miyake ,  Kohji Inada ,  Motohisa Asano

    发明人： Tetsuya Miyake ,  Kohji Inada ,  Motohisa Asano

    IPC分类号： C07C7/13

    CPC分类号： C07C7/13

    摘要： A process for the adsorption separation of C.sub.8 aromatic isomers which comprises the steps of:(a) Supplying a C.sub.8 aromatic isomer mixture to a separation zone packed with a zeolite adsorbent to form an C.sub.8 aromatic isomer mixture adsorption band, the zeolite being a faujasite structured zeolite where at least about 60% of the exchangeable cation sites are replaced by potassium ion, and the remaining exchangeable cation sites being replaced by at least one metal cation selected from the group consisting of sodium, lithium, rubidium, cesium, magnesium, calcium, strontium, barium, nickel, copper, silver, manganese, cadmium, thallium and lanthanum ions;(b) Supplying a desorbent to the separation zone to develop the C.sub.8 aromatic isomer mixture adsorption band, the desorbent being an ether compound having a selectivity of about 0.3 to about 3.0 over para-xylene measured at a concentration of about 10 to about 90% by weight of the ether compound in the mixture of the ether compound and para-xylene;(c) Repeating the step (a) and the step (b) alternately to effect the migration of the C.sub.8 isomer mixture adsorption band; and(d) Collecting the entire amount of the C.sub.8 aromatic isomer in fractions at the outlet of the separation zone.

    摘要翻译： 一种用于吸附分离C8芳族异构体的方法，其包括以下步骤：（a）向填充有沸石吸附剂的分离区提供C8芳族异构体混合物以形成C8芳族异构体混合物吸附带，沸石为八面沸石结构 沸石，其中至少约60％的可交换阳离子位点被钾离子代替，并且剩余的可交换阳离子位置被至少一种选自钠，锂，铷，铯，镁，钙， 锶，钡，镍，铜，银，锰，镉，铊和镧离子; （b）向分离区提供解吸剂以开发C8芳族异构体混合物吸附带，所述解吸剂是以约10至约90％的浓度测量的对二甲苯选择性为约0.3至约3.0的醚化合物， 的醚化合物和对二甲苯的混合物中的醚化合物; （c）交替地重复步骤（a）和步骤（b）以实现C8异构体混合物吸附带的迁移; 和（d）在分离区的出口处收集馏分中的全部量的C 8芳族异构体。

    Isotope separation
    2.
    发明授权
    Isotope separation 失效
    同位素分离

    公开(公告)号：US4280984A

    公开(公告)日：1981-07-28

    申请号：US941505

    申请日：1978-09-11

    申请人： Tetsuya Miyake ,  Norito Ogawa ,  Kohji Inada ,  Kunihiko Takeda

    发明人： Tetsuya Miyake ,  Norito Ogawa ,  Kohji Inada ,  Kunihiko Takeda

    IPC分类号： B01D15/00 ,  B01D59/30 ,  C01G56/00 ,  B01J39/00 ,  B01J41/00 ,  B01J47/00

    CPC分类号： B01D59/30 ,  Y10S422/903

    摘要： An isotope separation apparatus comprises a plurality of independent developing units, each comprising 2 to 20 adsorbent-packed columns forming a continuous developing circuit or passageway, and the developing units are connected to at least one common main pipe for supplying an isotope mixture solution, a regenerating agent solution, or an eluent solution. Also, in a further embodiment the developing units are connected to common liquid-discharge main pipes.The separation or concentration of isotopes such as uranium isotopes, nitrogen isotopes, boron isotopes, etc., is performed by continuously developing the isotope mixture solution passed through the individual adsorbent-packed columns successively in each developing units.

    摘要翻译： 同位素分离装置包括多个独立的显影单元，每个显影单元包括形成连续显影回路或通道的2至20个吸附剂填充柱，显影单元连接至至少一个用于提供同位素混合溶液的公共主管， 再生剂溶液或洗脱液。 此外，在另一实施例中，显影单元连接到共同的排液主管。 通过在每个显影单元中连续地开发通过单独的吸附剂填充塔的同位素混合物溶液来进行同位素如铀同位素，氮同位素，硼同位素等的分离或浓缩。

    Isotope separation
    4.
    发明授权
    Isotope separation 失效

    公开(公告)号：US4302424A

    公开(公告)日：1981-11-24

    申请号：US167495

    申请日：1980-07-11

    申请人： Tetsuya Miyake ,  Norito Ogawa ,  Kohji Inada ,  Kunihiko Takeda

    发明人： Tetsuya Miyake ,  Norito Ogawa ,  Kohji Inada ,  Kunihiko Takeda

    IPC分类号： B01D15/00 ,  B01D59/30 ,  B01J49/00

    CPC分类号： B01D59/30 ,  Y10S422/903

    摘要： An isotope separation apparatus comprises a plurality of independent developing units, each comprising 2 to 20 adsorbent-packed columns forming a continuous developing circuit or passageway, and the developing units are connected to at least one common main pipe for supplying an isotope mixture solution, a regenerating agent solution, or an eluent solution. Also, in a further embodiment the developing units are connected to common liquid-discharge main pipes.The separation or concentration of isotopes such as uranium isotopes, nitrogen isotopes, boron isotopes, etc., is performed by continuously developing the isotope mixture solution passed through the individual adsorbent-packed columns successively in each developing units.