VERFAHREN ZUR HERSTELLUNG VON KUGELFÖRMIGEN BRENN- ODER BRUTSTOFFPARTIKELN
    3.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON KUGELFÖRMIGEN BRENN- ODER BRUTSTOFFPARTIKELN 审中-公开
    用于生产球形燃料或育种材料颗粒

    公开(公告)号:WO2008142072A1

    公开(公告)日:2008-11-27

    申请号:PCT/EP2008/056169

    申请日:2008-05-20

    Abstract: Die Erfindung bezieht sich auf ein Verfahren zur Herstellung von kugelförmigen Brenn- oder Brutstoffpartikeln aus einem Oxid der Gruppe der Schwermetalle Uran, Thorium, Plutonium oder Mischungen. Dabei werden die Verfahrensschritte Herstellen einer Ausgangslösung der Nitrate des oder der Schwermetalle, Zufügen zumindest einer ersten Reagenzie zum Einstellen der Viskosität der Lösung, Vertropfen der Lösung zu Mikrokügelchen, zumindest oberflächliches Verfestigen der Mikrokügelchen in einer Ammoniak enthaltenden Atmosphäre, Auffangen der Mikrokügelchen in einer Ammoniak enthaltenden Lösung und anschließendes Waschen, Trocknen und thermisches Behandeln durchgeführt, wobei vor Zufügen der ersten Reagenzie der Ausgangslösung Harnstoff und/oder Ammoniumcarbonat und/oder Ammoniumhydrogencarbonat und/oder Ammoniumcyanat und/oder Biuret zugegeben wird und die so hergestellte Lösung auf eine Temperatur T mit 80° ≤ T s mit T s = Siedetemperatur der Lösung erhitzt und über eine Zeit t mit 2 h ≤ t ≤ 8 h gehalten wird.

    Abstract translation: 本发明涉及一种用于生产该组重金属,铀,钍,钚或其混合物的氧化物的球形燃料或增殖材料颗粒的方法。 在这种情况下,制备的或重金属的硝酸盐的起始溶液的方法步骤,将至少含有第一试剂用于在氨调节溶液的粘度,滴该溶液到微球,至少浅表固化该微球的气氛中含有氨,收集微球 溶液,然后洗涤,干燥和热处理进行时,添加尿素和/或碳酸铵和/或碳酸氢铵和/或氰酸铵和/或缩二脲和如此制备的溶液的初始溶液的第一试剂至80°的温度T之前加入 加热> =沸腾溶液的温度= T 取值Ť取值

    SELECTIVE EXTRACTION OF CERIUM FROM OTHER METALS
    6.
    发明申请
    SELECTIVE EXTRACTION OF CERIUM FROM OTHER METALS 审中-公开
    选择性提取其他金属的CER

    公开(公告)号:WO2015191645A1

    公开(公告)日:2015-12-17

    申请号:PCT/US2015/034986

    申请日:2015-06-09

    Inventor: KASAINI, Henry

    CPC classification number: C01F17/0043 C01F15/00 C01P2006/80

    Abstract: Methods for the extraction of cerium and/or thorium from metal compounds and solutions. A single step or two-step extraction method may be applied to selectively precipitate thorium and/or cerium as hydroxides under controlled pH conditions such that a substantially thorium-free and/or cerium-free rare earth element (REE) solution may be formed, such as for the subsequent separation of individual rare earth elements.

    Abstract translation: 从金属化合物和溶液中萃取铈和/或钍的方法。 可以应用单步或两步提取方法在受控的pH条件下选择性地将钍和/或铈作为氢氧化物沉淀,使得可以形成基本上无钍和/或无铈的稀土元素(REE)溶液, 例如用于随后分离各个稀土元素。

    PRODUCTION OF THORIUM 228 STARTING FROM A NATURAL THORIUM SALT
    8.
    发明申请
    PRODUCTION OF THORIUM 228 STARTING FROM A NATURAL THORIUM SALT 审中-公开
    从天然钍盐开始生产钍228

    公开(公告)号:WO2008113792A3

    公开(公告)日:2008-11-13

    申请号:PCT/EP2008053186

    申请日:2008-03-18

    CPC classification number: C01F15/00 A61K51/1096 A61K51/12 C01P2006/88

    Abstract: The invention relates to a process for producing 228 Th from a natural thorium salt, which comprises in succession: a) the separation of the radium from the other radioelements present in this salt, by at least one coprecipitation of the radium by barium sulphate, this coprecipitation comprising: i) the addition of sulphuric acid and a barium salt to an aqueous solution of said natural thorium salt in order to form a barium-radium sulphate coprecipitate and ii) the separation of the coprecipitate from the medium in which it has formed; b) the extraction of the thorium 228 coming from the decay of radium 228 from the coprecipitate thus separated; and, optionally c) the purification and concentration of the 228 Th thus extracted. Applications: manufacture of radiopharmaceutical products useful in nuclear medicine, in particular in radioimmunotherapy for the treatment of cancers and AIDS.

    Abstract translation: 本发明涉及一种由天然钍盐生产天然钍盐的方法,其依次包括:a)通过至少一次共沉淀将镭与该盐中存在的其它放射性元素分离 通过硫酸钡处理镭,该共沉淀包括:i)向所述天然钍盐的水溶液中加入硫酸和钡盐以形成钡镭硫酸盐共沉淀物,和ii)将共沉淀物与 它已经形成的媒介; b)从由此分离的共沉淀物中提取来自镭228的衰变的钍228; 并且任选地c)纯化和浓缩如此提取的Th218 Th。 应用:制造用于核医学的放射性药物产品,特别是用于治疗癌症和艾滋病的放射免疫治疗。

    PRODUCTION OF THORIUM 228 STARTING FROM A NATURAL THORIUM SALT
    9.
    发明申请
    PRODUCTION OF THORIUM 228 STARTING FROM A NATURAL THORIUM SALT 审中-公开
    从天然硫酸钠开始生产228

    公开(公告)号:WO2008113792A2

    公开(公告)日:2008-09-25

    申请号:PCT/EP2008/053186

    申请日:2008-03-18

    CPC classification number: C01F15/00 A61K51/1096 A61K51/12 C01P2006/88

    Abstract: The invention relates to a process for producing 228 Th from a natural thorium salt, which comprises in succession: a) the separation of the radium from the other radioelements present in this salt, by at least one coprecipitation of the radium by barium sulphate, this coprecipitation comprising: i) the addition of sulphuric acid and a barium salt to an aqueous solution of said natural thorium salt in order to form a barium-radium sulphate coprecipitate and ii) the separation of the coprecipitate from the medium in which it has formed; b) the extraction of the thorium 228 coming from the decay of radium 228 from the coprecipitate thus separated; and, optionally c) the purification and concentration of the 228 Th thus extracted. Applications: manufacture of radiopharmaceutical products useful in nuclear medicine, in particular in radioimmunotherapy for the treatment of cancers and AIDS.

    Abstract translation: 本发明涉及一种从天然钍盐生产“228”Th的方法,该方法包括以下步骤:a)通过至少一次共沉淀法将镭与其中存在的其它放射性元素分离 这种共沉淀包括:i)向所述天然钍盐的水溶液中加入硫酸和钡盐,以形成硫酸钡共沉淀物,和ii)将共沉淀物与 已形成的介质; b)从分离的共沉淀物中提取来自镭228的腐蚀的钍228; 并且可选地,c)纯化和浓缩如此提取的第二十二章。 应用:制造用于核医学的放射性药物产品,特别是用于治疗癌症和艾滋病的放射免疫疗法。

    PROCESS FOR THE PREPARATION OF ULTRAPURE ACTIVE METAL FLUORIDES
    10.
    发明申请
    PROCESS FOR THE PREPARATION OF ULTRAPURE ACTIVE METAL FLUORIDES 审中-公开
    制备超弹性活性金属氟化物的方法

    公开(公告)号:WO1986004048A1

    公开(公告)日:1986-07-17

    申请号:PCT/US1985001834

    申请日:1985-09-26

    Abstract: Method for the preparation of ultrapure active metal fluorides of increased purity from their metal oxides by reacting an active metal with a predetermined amount of HF(aq) to form a solid reaction product which is dried under controlled heating to form a hydrated fluoride. This hydrated active metal fluoride is then subjected to reactive atmosphere processing comprising hydrofluoric acid vapor in a CO2 reactive carrier gas and a selected fluoride compound in the gas phase for a predetermined period of time to further increase anion purity.

    Abstract translation: 通过使活性金属与预定量的HF(aq)反应制备从其金属氧化物提纯的超纯活性金属氟化物的方法,以形成在受控加热下干燥以形成水合氟化物的固体反应产物。 然后使该水合活性金属氟化物在CO 2反应性载气和选择的氟化合物中在气相中进行包含氢氟酸蒸气预定时间的反应性气氛处理,以进一步提高阴离子纯度。

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