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    Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates
    1.
    发明授权
    Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates 失效
    制备高表面积金属氟化物和金属氟氧化物，特别是氟化铝挤出物

    公开(公告)号：US4402924A

    公开(公告)日：1983-09-06

    申请号：US204246

    申请日：1980-11-03

    申请人： Gary B. McVicker ,  Joseph J. Eggert

    发明人： Gary B. McVicker ,  Joseph J. Eggert

    IPC分类号： B01J27/12 ,  C01B9/08 ,  C01B11/24 ,  C01F5/28 ,  C01F7/50 ,  C01G1/06 ,  C01G23/02 ,  C01G35/02 ,  C01G43/06

    CPC分类号： B01J27/12 ,  C01B11/24 ,  C01B9/08 ,  C01F5/28 ,  C01F7/50 ,  C01G1/06 ,  C01G23/028 ,  C01G35/02 ,  C01G43/06

    摘要： A method is described for the preparation of high surface area metal fluorides and metal oxyfluorides comprising reacting high surface area metal oxides with a fluorocarbon vapor wherein the fluorocarbon is selected from the group consisting of CH.sub.4-Q F.sub.Q wherein Q is 1 to 3 and totally or partially fluorinated C.sub.2 -C.sub.6 alkanes, alkenes and alkynes and C.sub.5 -C.sub.6 cyclic alkanes, preferably fluoroform (CHF.sub.3) wherein the metal oxides and the fluorocarbon vapors are contacted at a temperature of from about 300.degree. to about 800.degree. C., for a time sufficient to effect the essentially complete conversion of the metal oxides into metal fluorides or the partial conversion of the metal oxides into metal oxyfluorides. The metal oxides converted into metal fluorides may be selected from the group consisting of the oxides of sodium, potassium, lithium, cesium, magnesium, calcium, barium, strontium, tin, antimony, bismuth, titanium, zirconium, vanadium, chromium, manganese, iron, cobalt, rhodium, mercury, nickel, copper, silver, zinc, cadmium, lead, uranium, europium, indium, lutetium, neodymium, thallium and mixtures thereof. The metal oxides converted into metal oxyfluorides may be selected from the group recited above and further include silicon, niobium, hafnium, tantalum, molybdenum, tungsten, technetium, rhenium, osmium, iridium, lanthanum and ruthenium. The above metal oxides may also be utilized in combination with alumina and silica. The fluorocarbon partial pressure in the treatment vapor may be in the range of from about 0.001 to about 100 atmosphere. By the practice of the instant invention high surface area metal fluoride extrudates are prepared by the conversion of metal oxide extrudate, particularly aluminum fluoride extrudates from alumina extrudates.

    摘要翻译： 描述了用于制备高表面积金属氟化物和金属氟氧化物的方法，其包括使高表面积金属氧化物与碳氟化合物蒸气反应，其中氟碳选自CH4-QFQ，其中Q为1至3，全部或部分 氟化C 2 -C 6烷烃，烯烃和炔烃和C 5 -C 6环烷烃，优选氟代（CHF 3），其中金属氧化物和碳氟化合物蒸气在约300至约800℃的温度下接触足够的时间 以实现金属氧化物基本上完全转化为金属氟化物或将金属氧化物部分转化成金属氟氧化物。 转化为金属氟化物的金属氧化物可以选自钠，钾，锂，铯，镁，钙，钡，锶，锡，锑，铋，钛，锆，钒，铬，锰， 铁，钴，铑，汞，镍，铜，银，锌，镉，铅，铀，铕，铟，镥，钕，铊及其混合物。 转化为金属氟氧化物的金属氧化物可以选自上述的基团，还包括硅，铌，铪，钽，钼，钨，锝，铼，锇，铱，镧和钌。 上述金属氧化物也可以与氧化铝和二氧化硅组合使用。 处理蒸气中的氟碳分压可以在约0.001至约100个气氛的范围内。 通过本发明的实践，通过将金属氧化物挤出物，特别是来自氧化铝挤出物的氟化铝挤出物的转化制备高表面积金属氟化物挤出物。

    Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates
    2.
    发明授权
    Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates 失效
    制备高表面积金属氟化物和金属氟氧化物，特别是氟化铝挤出物

    公开(公告)号：US4275046A

    公开(公告)日：1981-06-23

    申请号：US869776

    申请日：1978-01-16

    申请人： Gary B. McVicker ,  Joseph J. Eggert

    发明人： Gary B. McVicker ,  Joseph J. Eggert

    IPC分类号： B01J27/12 ,  C01B9/08 ,  C01B11/24 ,  C01F5/28 ,  C01F7/50 ,  C01F7/56 ,  C01G1/06 ,  C01G23/02 ,  C01G35/02 ,  C01G43/06

    CPC分类号： C01G35/02 ,  B01J27/12 ,  C01B11/24 ,  C01B9/08 ,  C01F5/28 ,  C01F7/50 ,  C01G1/06 ,  C01G23/028 ,  C01G43/06

    摘要： A method is described for the preparation of high surface area metal fluorides and metal oxyfluorides comprising reacting high surface area metal oxides with a fluorocarbon vapor wherein the fluorocarbon is selected from the group consisting of CH.sub.4-Q F.sub.Q wherein Q is 1 to 3 and totally or partially fluorinated C.sub.2 -C.sub.6 alkanes, alkenes and alkynes and C.sub.5 -C.sub.6 cyclic alkanes, preferably fluoroform (CHF.sub.3) wherein the metal oxides and the fluorocarbon vapors are contacted at a temperature of from about 300.degree. to about 800.degree. C., for a time sufficient to effect the essentially complete conversion of the metal oxides into metal fluorides or the partial conversion of the metal oxides into metal oxyfluorides. The metal oxides converted into metal fluorides may be selected from the group consisting of the oxides of sodium, potassium, lithium, cesium, magnesium, calcium, barium, strontium, tin, antimony, bismuth, titanium, zirconium, vanadium, chromium, manganese, iron, cobalt, rhodium, mercury, nickel, copper, silver, zinc, cadmium, lead, uranium, europium, idium, lutetium, neodymium, thallium and mixtures thereof. The metal oxides converted into metal oxyfluorides may be selected from the group recited above and further include silicon, niobium, hafnium, tantalum, molybdenum, tungsten, technetium, rhenium, osmium, iridium, lanthanum and ruthenium. The above metal oxides may also be utilized in combination with alumina and silica. The fluorocarbon partial pressure in the treatment vapor may be in the range of from about 0.001 to about 100 atmosphere. By the practice of the instant invention high surface area metal fluoride extrudates are prepared by the conversion of metal oxide extrudate, particularly aluminum fluoride extrudates from alumina extrudates.

    摘要翻译： 描述了用于制备高表面积金属氟化物和金属氟氧化物的方法，其包括使高表面积金属氧化物与碳氟化合物蒸气反应，其中氟碳选自CH4-QFQ，其中Q为1至3，全部或部分 氟化C 2 -C 6烷烃，烯烃和炔烃和C 5 -C 6环烷烃，优选氟代（CHF 3），其中金属氧化物和碳氟化合物蒸气在约300至约800℃的温度下接触足够的时间 以实现金属氧化物基本上完全转化为金属氟化物或将金属氧化物部分转化成金属氟氧化物。 转化为金属氟化物的金属氧化物可以选自钠，钾，锂，铯，镁，钙，钡，锶，锡，锑，铋，钛，锆，钒，铬，锰， 铁，钴，铑，汞，镍，铜，银，锌，镉，铅，铀，铕，ium，镥，钕，铊及其混合物。 转化为金属氟氧化物的金属氧化物可以选自上述的基团，还包括硅，铌，铪，钽，钼，钨，锝，铼，锇，铱，镧和钌。 上述金属氧化物也可以与氧化铝和二氧化硅组合使用。 处理蒸气中的氟碳分压可以在约0.001至约100个气氛的范围内。 通过本发明的实践，通过将金属氧化物挤出物，特别是来自氧化铝挤出物的氟化铝挤出物的转化制备高表面积金属氟化物挤出物。

    Method for making a highly pure tantalum compound
    4.
    发明授权
    Method for making a highly pure tantalum compound 失效
    制造高纯钽化合物的方法

    公开(公告)号：US06010676A

    公开(公告)日：2000-01-04

    申请号：US928369

    申请日：1997-09-12

    申请人： Raj P. Singh ,  Michael J. Miller

    发明人： Raj P. Singh ,  Michael J. Miller

    IPC分类号： C01G35/00 ,  C22B34/24 ,  C01G35/02

    CPC分类号： C01G35/00 ,  C22B34/24 ,  C01P2002/82 ,  C01P2002/89 ,  C01P2006/12 ,  C01P2006/80

    摘要： Highly pure tantalum compounds are made by slurrying hydrated ammonium tantalum oxide or tantalum hydroxide with concentrated sulfuric acid followed by dissolution with concentrated hydrofluoric acid. After diluting the concentrated acidic solution with water, a soluble potassium compound is added to precipitate a highly pure potassium fluorotantalate. Further steps are used to convert the highly pure potassium fluorotantalate into a highly pure tantalum oxide.

    摘要翻译： 高纯钽化合物是通过用浓硫酸将氧化钽或氢氧化钽水合，然后用浓氢氟酸溶解制成的。 用水稀释浓缩的酸性溶液后，加入可溶性钾化合物以沉淀出高纯度的氟铁钙钾。 使用进一步的步骤将高纯度的氟碳酸钾转化成高纯度的氧化钽。

    Process for the recovery of tantalum values
    5.
    发明授权
    Process for the recovery of tantalum values 失效
    回收钽价值的过程

    公开(公告)号：US4495158A

    公开(公告)日：1985-01-22

    申请号：US584846

    申请日：1984-02-29

    申请人： Joseph E. Ritsko ,  Howard L. Acla

    发明人： Joseph E. Ritsko ,  Howard L. Acla

    IPC分类号： C01G35/00 ,  C01G35/02 ,  C22B34/24

    CPC分类号： C01G35/02 ,  C01G35/00 ,  C22B34/24

    摘要： Tantalum is recovered from an impure source containing niobium, tungsten, titanium, iron, and other impurities by a process comprising mixing the impure source with an alkali metal carbonate, drying the resulting mixture, heating the dried mixture to convert the tungsten to a soluble form, leaching to solubilize the tungsten, digesting the resulting leached solids containing tantalum in hydrochloric acid to solubilize iron values and a portion of the titanium values, dissolving the leached solids containing tantalum values in hydrofluoric acid, adjusting the pH of the resulting solution to form a first tantalum precipitate, dissolving the first tantalum precipitate in oxalic acid adjusting the pH to form a second tantalum precipitate, dissolving and digesting the second tantalum precipitate in hydrochloric acid solution to form a third tantalum precipitate of high purity.

    摘要翻译： 通过包括将不纯的源与碱金属碳酸盐混合的方法从包含铌，钨，钛，铁和其他杂质的不纯物质源中回收钽，干燥所得混合物，加热干燥的混合物以将钨转化为可溶形式 浸出以溶解钨，在盐酸中消化含有钽的所得浸出固体，以溶解铁值和一部分钛值，将含有钽值的浸出固体溶解在氢氟酸中，调节所得溶液的pH以形成 第一钽沉淀物，将第一钽沉淀物溶解在草酸中调节pH以形成第二钽沉淀物，溶解并消化第二钽沉淀物在盐酸溶液中以形成高纯度的第三钽沉淀物。