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1. 发明授权

EP0490128B1 Zirconium-hafnium production in a zero liquid discharge process 失效
标题翻译：一种用于生产和而不产生的废液中分离锆和铪方法
公开(公告)号：EP0490128B1
公开(公告)日：1996-05-22
申请号：EP91119748.1
申请日：1991-11-19
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： C22B34/14 , C22B34/12 , C22B3/24 , C01G25/00 , C01G27/00
CPC分类号： C22B3/44 , C22B34/14 , Y02P10/234 , B01D15/08 , G01N2030/587

2. 发明授权

EP0464513B1 Chromatographic separation of zirconium isotopes with anhydrous readily recyclable eluents 失效
标题翻译：锆的色谱分离，用无水的易回收洗脱液同位素。
公开(公告)号：EP0464513B1
公开(公告)日：1995-02-22
申请号：EP91110252.3
申请日：1991-06-21
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： B01D59/30
CPC分类号： B01J39/12 , B01D15/1892 , B01D15/362 , B01D59/30 , C01G25/003 , G01N30/02 , G01N30/34 , G01N30/44 , G01N30/58 , G01N30/6017 , G01N30/6047 , G01N30/6052 , G01N2030/342 , G01N2030/587 , G01N2030/8809 , G01N2030/8859 , B01D15/422 , B01D15/36

3. 发明公开

EP0464513A1 Chromatographic separation of zirconium isotopes with anhydrous readily recyclable eluents 失效
标题翻译： Chromatographische Trennung von Zirconium-Isotopen mit wasserfreien leicht-recyclierbaren Eluierungsmitteln。
公开(公告)号：EP0464513A1
公开(公告)日：1992-01-08
申请号：EP91110252.3
申请日：1991-06-21
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： B01D59/30
CPC分类号： B01J39/12 , B01D15/1892 , B01D15/362 , B01D59/30 , C01G25/003 , G01N30/02 , G01N30/34 , G01N30/44 , G01N30/58 , G01N30/6017 , G01N30/6047 , G01N30/6052 , G01N2030/342 , G01N2030/587 , G01N2030/8809 , G01N2030/8859 , B01D15/422 , B01D15/36
摘要： The isotopes of zirconium can be partially or completely separated by loading an essentially anhydrous alcoholic solution of an ionic compound of zirconium onto a cationic exchange resin with pentavalent phosphorus derived active groups which serves as the stationary phase of a chromatograph, eluting the compound with an essentially anhydrous alcoholic solution of hydrogen chloride and collecting distinct elution volumes representative of each isotope. In a preferred embodiment, the active groups of the cation exchange resin are derived from di-2-ethylhexyl phosphoric acid, tri-n-octyl phosphine oxide or tributyl phosphate and the chromatograph is of a type, such as a continuous annular chromatograph that it can be operated in a continuous, steady state manner.
摘要翻译：通过将锆的离子化合物的基本上无水的醇溶液加载到具有五价磷衍生的活性基团的阳离子交换树脂上，可以部分或完全分离锆的同位素，其作为色谱仪的固定相，用基本上洗脱的化合物无水乙醇溶液，并收集代表每个同位素的不同洗脱体积。在优选的实施方案中，阳离子交换树脂的活性基团衍生自磷酸二-2-乙基己酯，三正辛基氧化膦或磷酸三丁酯，并且色谱是类型的，例如连续环状色谱可以以连续，稳定的方式操作。

4. 发明授权

EP0480374B1 Continuous anion exchange chromatography for the separation of zirconium isotopes 失效
标题翻译：通过阴离子交换Zirconiumisotopen的连续色谱分离。
公开(公告)号：EP0480374B1
公开(公告)日：1994-12-28
申请号：EP91117136.1
申请日：1991-10-08
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Skriba, Michael Charles , Lahoda, Edward Jean , Lee, Ernest Dewitt
IPC分类号： B01D59/30 , B01D15/08
CPC分类号： B01D59/30 , G01N30/58 , Y10S423/07

5. 发明公开

EP0453908A2 Chromatographic separation of zirconium isotopes 失效
标题翻译：色谱仪Trennung von Zirkonium-Isotopen。
公开(公告)号：EP0453908A2
公开(公告)日：1991-10-30
申请号：EP91105878.2
申请日：1991-04-12
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Lee, Ernest Dewitt , Snyder, Thomas Stephen , Lahoda, Edward Jean
IPC分类号： B01D59/30
CPC分类号： B01D59/30 , G01N30/58 , Y10S423/07
摘要： The isotopes of zirconium can be partially or completely separated by loading an aqueous solution of an ionic compound of zirconium onto a cationic exchange resin which serves as the stationary phase of a chromatograph, eluting the compound with an aqueous acid and collecting distinct elution volumes representative of each isotope. In a preferred embodiment, the eluent is a strong mineral acid, such as hydrochloric acid and the chromatograph is of a type, such as a continuous annular chromatograph that it can be operated in a continuous, steady state manner.
摘要翻译：锆的同位素可以通过将锆的离子化合物的水溶液加载到阳离子交换树脂上而部分或完全分离，所述阳离子交换树脂用作色谱的固定相，用酸水洗脱该化合物，并收集不同的洗脱体积，每个同位素。在一个优选的实施方案中，洗脱液是强无机酸，例如盐酸，并且色谱是类型的，例如连续环状色谱仪，其可以以连续，稳定的方式操作。

6. 发明授权

EP0453908B1 Chromatographic separation of zirconium isotopes 失效
标题翻译：锆的同位素的色谱分离
公开(公告)号：EP0453908B1
公开(公告)日：1996-08-14
申请号：EP91105878.2
申请日：1991-04-12
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Lee, Ernest Dewitt , Snyder, Thomas Stephen , Lahoda, Edward Jean
IPC分类号： B01D59/30
CPC分类号： B01D59/30 , G01N30/58 , Y10S423/07

7. 发明授权

EP0464783B1 Chromatographic separation of zirconium isotopes with reduced waste liquor 失效
标题翻译：锆的色谱分离方法同位素具有减少的废液。
公开(公告)号：EP0464783B1
公开(公告)日：1994-12-07
申请号：EP91110968.4
申请日：1991-07-02
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： B01D59/30
CPC分类号： G01N30/58 , B01D59/30 , G01N30/02 , G01N30/34 , G01N30/44 , G01N30/6017 , G01N30/6047 , G01N30/6052 , G01N2030/342 , G01N2030/587 , G01N2030/8809 , G01N2030/8859 , B01D15/362 , B01D15/422 , B01D15/36

8. 发明公开

EP0490128A3 Zirconium-hafnium production in a zero liquid discharge process 失效
标题翻译：零液体放电过程中的ZIRCONIUM-HAFNIUM生产
公开(公告)号：EP0490128A3
公开(公告)日：1993-01-20
申请号：EP91119748.1
申请日：1991-11-19
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： C22B34/14 , C22B34/12 , C22B3/24 , C01G25/00 , C01G27/00
CPC分类号： C22B3/44 , C22B34/14 , Y02P10/234 , B01D15/08 , G01N2030/587
摘要： A simple, low cost continuous process for separating and purifying zirconium and hafnium which eliminates liquid waste and facilitates the management of RCRA and LLW wastes is provided. An aqueous zirconium and hafnium - containing feed solution is prepared and fed to a continuously rotating annular chromatograph containing a bed of acid exchange resin. An acid eluant, such as hydrochloric acid, nitric acid, phosphoric acid or the like, is fed through the acid exchange bed while the chromatograph is rotating, which separates the feed into substantially pure zirconium and hafnium fractions and into RCRA and LLW waste fractions. The zirconium and hafnium are processed further into nuclear quality zirconium and hafnium metals. The acid eluant is recycled for reuse in the chromatograph, and the RCRA and LLW waste fractions are disposed of in solid form.

9. 发明公开

EP0490128A2 Zirconium-hafnium production in a zero liquid discharge process 失效
标题翻译：一种用于生产和而不产生的废液中分离锆和铪的方法。
公开(公告)号：EP0490128A2
公开(公告)日：1992-06-17
申请号：EP91119748.1
申请日：1991-11-19
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Lee, Ernest Dewitt
IPC分类号： C22B34/14 , C22B34/12 , C22B3/24 , C01G25/00 , C01G27/00
CPC分类号： C22B3/44 , C22B34/14 , Y02P10/234 , B01D15/08 , G01N2030/587
摘要： A simple, low cost continuous process for separating and purifying zirconium and hafnium which eliminates liquid waste and facilitates the management of RCRA and LLW wastes is provided. An aqueous zirconium and hafnium - containing feed solution is prepared and fed to a continuously rotating annular chromatograph containing a bed of acid exchange resin. An acid eluant, such as hydrochloric acid, nitric acid, phosphoric acid or the like, is fed through the acid exchange bed while the chromatograph is rotating, which separates the feed into substantially pure zirconium and hafnium fractions and into RCRA and LLW waste fractions. The zirconium and hafnium are processed further into nuclear quality zirconium and hafnium metals. The acid eluant is recycled for reuse in the chromatograph, and the RCRA and LLW waste fractions are disposed of in solid form.
摘要翻译：一个简单的，低成本的连续分离和纯化锆和铪，消除液体废物和便于RCRA和LLW废物管理设置过程。含进料溶液并供给到连续旋转的环形设计色谱含有酸交换树脂的床 - 对wässrige锆和铪。食酸洗脱液：如盐酸，硝酸，磷酸或类似物，是通过酸交换床，而色谱仪旋转时，其中分离成基本上纯的锆和铪的级分，并进入RCRA和LLW废物馏分进料。锆和铪进一步加工成核质量锆和铪的金属。酸洗脱液再循环用于色谱重用，和RCRA和LLW废物碎片被设置的固体形式。

10. 发明公开

EP0480374A3 Continuous anion exchange chromatography for the separation of zirconium isotopes 失效
标题翻译：用于分离ZIRCONIUM同位素的连续阴离子交换色谱
公开(公告)号：EP0480374A3
公开(公告)日：1992-05-20
申请号：EP91117136.1
申请日：1991-10-08
申请人： WESTINGHOUSE ELECTRIC CORPORATION
发明人： Snyder, Thomas Stephen , Skriba, Michael Charles , Lahoda, Edward Jean , Lee, Ernest Dewitt
IPC分类号： B01D59/30 , B01D15/08
CPC分类号： B01D59/30 , G01N30/58 , Y10S423/07
摘要： The thermal neutron capture cross-section of zirconium may be altered by altering its natural isotope distribution through a steady state chromatographic separation of these isotopes using an anion exchange resin (27) as the stationary phase of the chromatographic column. Zirconium is dissolved in a very strong acid which causes the formation of a zirconium anion, such as the ZrOCl₄⁻² anion formed in six normal hydrochloric acid, and eluted off the column with a weaker acid. Distinct elution volumes representative of each isotope are collected. In a preferred embodiment, the process also separates the zirconium from hafnium and the other impurities normally present in the product obtained by chlorinating zircon sand and utilizes a continuous annular chromatograph (10).

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