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1. 发明授权

US06780384B2 Method and system for recovering zirconium values from a hard rock ore containing uranium 失效
标题翻译：从含有铀的硬岩矿石中回收锆值的方法和系统
公开(公告)号：US06780384B2
公开(公告)日：2004-08-24
申请号：US10093924
申请日：2002-03-07
申请人： Allen L. Williams , Robert W. Philips, Jr. , David R. Tierney , Daniel R. Dilday
发明人： Allen L. Williams , Robert W. Philips, Jr. , David R. Tierney , Daniel R. Dilday
IPC分类号： C01G2500
CPC分类号： C22B3/08 , C22B1/02 , C22B34/14 , Y02P10/234
摘要： A method of recovering zirconium values from an ore containing zircon, baddeleyite, and uranium is disclosed. The method includes fusing the ore with soda ash and contacting the resulting fused ore with sulfuric acid, which generates an acid leach liquor that contains zirconium and uranium values and solids that comprise baddeleyite and silica. Baddeleyite is recovered by contacting it with sulfuric acid to convert baddeleyite to zirconium sulfate, which can be dissolved in the acid leach liquor. The method also includes separating zirconium from uranium by solvent extraction followed by precipitation.
摘要翻译：公开了一种从含有锆石，铁矿石和铀矿石中回收锆值的方法。该方法包括将矿石与苏打灰融合并将所得熔融矿石与硫酸接触，其产生含有锆和铀值的酸浸出液，以及包含黄铁矿和二氧化硅的固体。通过使其与硫酸接触来回收巴德德石英，以将矿石转变成硫酸锆，其可以溶解在酸浸液中。该方法还包括通过溶剂萃取，然后沉淀从铀中分离出锆。

2. 发明授权

US06737030B2 Method for separating hafnium from zirconium 有权
标题翻译：从锆中分离铪的方法
公开(公告)号：US06737030B2
公开(公告)日：2004-05-18
申请号：US10059680
申请日：2002-01-29
申请人： James A. Sommers , Jeff G. Perrine
发明人： James A. Sommers , Jeff G. Perrine
IPC分类号： C01G2500
CPC分类号： C22B34/14 , C22B3/0029 , Y02P10/234
摘要： A method is provided to optimize separation of zirconium from hafnium by extraction of a feed mix including (Zr+Hf)OCl2 with a thiocyanate-containing organic phase. The method includes maintaining the TA/MO2 ratio in a range from greater than about 2.55 to about 3.5.
摘要翻译：提供了一种通过萃取含有硫氰酸酯的有机相的（Zr + Hf）OCl 2的进料混合物来优化锆与铪的分离的方法。该方法包括将TA / MO2比维持在大于约2.55至约3.5的范围内。

3. 发明授权

US06627164B1 Sodium zirconium carbonate and zirconium basic carbonate and methods of making the same 有权
标题翻译：碳酸锆锆和碱式碳酸锆及其制造方法
公开(公告)号：US06627164B1
公开(公告)日：2003-09-30
申请号：US09723396
申请日：2000-11-28
申请人： Raymond J. Wong
发明人： Raymond J. Wong
IPC分类号： C01G2500
CPC分类号： B01J20/043 , A61M1/1696 , B01J20/0211 , B01J20/0277 , B01J20/0292 , B01J20/08 , B01J20/20 , B01J20/28052 , B01J20/3234 , B01J2220/42 , B01J2220/62 , C01G25/00 , C01G25/006 , C01P2004/61 , C01P2006/82
摘要： A method of making sodium zirconium carbonate is described which involves forming a mixture of zirconium oxychloride with soda ash and then heating at a sufficient temperature and for a sufficient time to form the sodium zirconium carbonate. Subsequent washing and filtration steps can further form parts of this process. A novel sodium zirconium carbonate is further described which contains from about 2 wt % to about 5 wt % Na+; from about 44 wt % to about 50 wt % ZrO2; from about 12 wt % to about 18 wt % CO32−; and from about 32 wt % to about 35 wt % H2O.
摘要翻译：描述了制备碳酸锆钠的方法，其涉及形成氯氧化锆与苏打灰的混合物，然后在足够的温度下加热足够的时间以形成碳酸锆钠。随后的洗涤和过滤步骤可以进一步形成该方法的一部分。进一步描述了一种新的碳酸锆钠，其含有约2重量％至约5重量％的Na +; 约44重量％至约50重量％的ZrO 2; 约12重量％至约18重量％的CO 3 2-; 和约32重量％至约35重量％的H 2 O.

4. 发明授权

US06524548B1 Zirconium dioxide powder, method of its production and use 失效
标题翻译：二氧化锆粉末，其生产和使用方法
公开(公告)号：US06524548B1
公开(公告)日：2003-02-25
申请号：US09067915
申请日：1998-04-29
申请人： Helmut Mangold , Werner Hartmann , Dieter Kerner , Peter Kleinschmit
发明人： Helmut Mangold , Werner Hartmann , Dieter Kerner , Peter Kleinschmit
IPC分类号： C01G2500
CPC分类号： B82Y30/00 , C01G25/02 , C01P2002/54 , C01P2002/60 , C01P2004/51 , C01P2004/64 , C01P2006/11 , C01P2006/12 , C01P2006/80 , C01P2006/90
摘要： Pyrogenically, especially flame-hydrolytically produced zirconium dioxide powder with a specific surface area between 20 and 200 m2/g, a primary particle size between 7 and 100 nm, a tamped density of the deacidified and non-deacidified zirconium dioxide between 40 and 150 g/l with Sears numbers of the deacidified and non-deacidified zirconium dioxide between 1 and 20 ml/2 g and with a chlorine content of the deacidified zirconium dioxide less than 0.6% by weight. These are produced by evaporating zirconium halides, mixing the vapors alone or together with a carrier gas in a burner with air, oxygen, nitrogen and hydrogen, causing the gases to react with each other in a flame in a closed burner chamber, cooling off the waste gases and the zirconium dioxide in a heat exchanger unit, separating the waste gases from the zirconium dioxide and removing any halide remnants adhering to the zirconium dioxide by a heat treatment with moistened air.
摘要翻译：热原性地，特别是火焰水解生产的二氧化锆粉末，比表面积为20至200m2 / g，一次粒径在7至100nm之间，脱酸和非脱酸二氧化锆的密度为40-150g / S，数量为1至20ml / 2g之间的脱酸和非脱酸二氧化锆，并且脱酸二氧化锆的氯含量小于0.6重量％。这些是通过蒸发卤化锆，将蒸气单独或与气体一起携带在具有空气，氧气，氮气和氢气的燃烧器中的气体混合而产生的，导致气体在封闭的燃烧器室中的火焰中彼此反应，冷却废气和二氧化锆在热交换器单元中分离废气和二氧化锆，并通过用湿润的空气进行热处理除去附着在二氧化锆上的任何卤化物残余物。

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