Uranium isotope separation by continuous anion exchange chromatography
    5.
    发明授权
    Uranium isotope separation by continuous anion exchange chromatography 失效
    通过连续阴离子交换色谱法分离铀同位素

    公开(公告)号:US5130001A

    公开(公告)日:1992-07-14

    申请号:US620807

    申请日:1990-12-03

    摘要: A simple, low temperature process for separating uranium isotopes and producing substantially pure uranium isotope fractions from a crude uranium isotope-containing aqueous feed stock is provided. A uranium isotope-containing solution is fed to an anion exchange resin in a continuously rotating annular chromatograph as a suitable eluant is also simultaneously fed to the rotating chromatograph. A Uranium 235, a Uranium 238 and an impurity fraction are recovered from the chromatograph. The substantially pure uranium 235 and uranium 238 fractions may be subjected to further processing, preferably precipitation with ammonium hydroxide to produce ammonium diuranate, and then calcining to form uranium oxide rich in the desired isotope.

    摘要翻译: 提供了一种用于从含铀同位素的含水原料中分离铀同位素和生产基本上纯的铀同位素馏分的简单的低温方法。 将含铀同位素的溶液在连续旋转的环状色谱仪中供给到阴离子交换树脂中,因为合适的洗脱液也同时进料到旋转色谱仪中。 从色谱仪中回收铀235,铀238和杂质馏分。 基本上纯的铀235和铀238馏分可以进行进一步处理,优选用氢氧化铵沉淀以产生二氢化铵铵,然后煅烧以形成富含所需同位素的氧化铀。

    Process for the specific separation of lactose from milk
    6.
    发明授权
    Process for the specific separation of lactose from milk 失效
    乳糖与牛奶特异性分离的方法

    公开(公告)号:US4820348A

    公开(公告)日:1989-04-11

    申请号:US930505

    申请日:1986-11-12

    申请人: Matti Harju

    发明人: Matti Harju

    CPC分类号: A23J1/20 A23C9/1465 C13K5/00

    摘要: The invention relates to a process for accomplishing specific chromatographic separation of lactose from milk. Milk is treated in a column with a cation exchange resin balanced in such a manner that its cationic composition corresponds to the cationic composition of milk at a temperature of about 50.degree. to about 80.degree. C., and the column is eluted with water to recover a protein containing fraction and lactose fraction.

    摘要翻译: 本发明涉及一种从牛奶中实现乳糖特异性色谱分离的方法。 将牛奶在阳离子交换树脂的柱中进行处理,阳离子交换树脂的平衡度使得其阳离子组成对应于约50℃至约80℃的温度下的乳的阳离子组成,并且将柱用水洗脱回收 含蛋白质的级分和乳糖级分。

    Isotope separation
    7.
    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

    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。

    Separation of uranium isotopes using anion exchangers
    8.
    发明授权
    Separation of uranium isotopes using anion exchangers 失效
    使用阴离子交换剂分离铀同位素

    公开(公告)号:US4112045A

    公开(公告)日:1978-09-05

    申请号:US701912

    申请日:1976-07-01

    IPC分类号: B01D59/30 C01G43/00 C22B60/02

    摘要: Uranium-235 is efficiently concentrated using a solution containing uranium-238 and uranium-235 by passing a solution containing uranium (VI) complex anions through a body of an anion exchange material to adsorb uranium (VI) complex anions on a portion of the anion exchange material and then passing a solution of a reducing agent through the anion exchange material thus retaining uranium in the form of the uranium (VI) complex anions to elute the uranium ions while reducing the uranium (VI) complex anions to uranium (IV) complex ions.

    摘要翻译: 通过使含有铀(VI)配合阴离子的溶液通过阴离子交换材料体将含铀-238和铀-235的溶液有效浓缩,以在阴离子的一部分上吸附铀(Ⅵ)络合物阴离子 然后使还原剂的溶液通过阴离子交换材料,从而将铀(VI)络合物阴离子的形式保留,以洗脱铀离子,同时将铀(VI)络合物阴离子还原成铀(IV)络合物 离子。