公开(公告)号：US20040083854A1

公开(公告)日：2004-05-06

申请号：US10613545

申请日：2003-07-02

申请人： DOWA MINING CO., LTD.

发明人： Kishio Tayama ,  Toshiaki Hodozuka

IPC分类号： C22B026/22 ,  C22B058/00 ,  C22B017/06 ,  C22B019/16

CPC分类号： C22B19/16 ,  C22B9/04 ,  C22B17/06 ,  C22B58/00 ,  Y10S266/905

摘要： A 99.99% pure indium feed is charged into a crucible and heated to 1250 null C. by an upper heater in a vacuum atmosphere at 1null10null4 Torr, whereupon indium evaporates, condenses on the inner surfaces of an inner tube and drips to be recovered into a liquid reservoir in the lower part of a tubular member, whereas impurity elements having a lower vapor pressure than indium stay within the crucible. The recovered indium mass in the liquid reservoir is heated to 1100null C. by a lower heater and the resulting vapors of impurity elements having a higher vapor pressure than indium pass through diffuser plates in an upper part of the tubular member to be discharged from the system, whereas the indium vapor recondenses upon contact with the diffuser plates and returns to the liquid reservoir, yielding 99.9999% pure indium, while preventing the loss of indium.

摘要翻译： 将99.99％的纯铟进料装入坩埚中，并通过上加热器在1×10 -4乇的真空气氛中加热至1250℃，随后铟蒸发，在内管的内表面冷凝并滴至 被回收到管状部件的下部的液体储存器中，而具有比铟低的蒸气压的杂质元素保留在坩埚内。 通过下部加热器将液体储存器中回收的铟质量加热至1100℃，并且所得到的蒸气压高于铟的杂质元素的蒸气通过管状部件上部的扩散板，从而从 系统，而铟蒸汽在与扩散板接触并重新回到液体储存器时重新产生，产生99.9999％的纯铟，同时防止铟的损失。

公开(公告)号：US20030145684A1

公开(公告)日：2003-08-07

申请号：US10112363

申请日：2002-03-29

申请人： DOWA MINING CO., LTD.

发明人： Kishio Tayama ,  Shunichi Kimura

IPC分类号： C22B019/16 ,  C22B026/22

CPC分类号： C22B19/16 ,  C22B9/02 ,  C22B9/04 ,  C22B26/22 ,  C22C18/00 ,  C22C23/00 ,  Y02P10/234

摘要： In a purification apparatus comprising a vertical stack of a feed heating zone having the feed crucible 1, a condensation zone having a plurality of condensation vapor passage plates 5, a solidification zone having a solidification crucible 2 and an entrapment/solidification zone having a plurality of entrapment/solidification vapor passage plates 7, a feed metal, preferably with a purity of at least 3N, is charged into the feed crucible 1 in a vacuum atmosphere, preferably at no more than 13 Pa (10null1 Torr), with the feed crucible 1 and the condensation vapor passage plates 5 being heated at controlled temperatures to generate the vapor of the metal in the feed heating zone; part of the metal vapor is condensed to form a molten condensate which is returned into the feed crucible 1, thereby; the process solidifying the high-purity metal in the solidification zone; the solidified metal has a purity of at least 6N and contains Cl, F and S in a respective amount of no more than 0.1 ppm with a total impurity content of no more than 1 ppm.

摘要翻译： 在包括具有进料坩埚1的进料加热区的垂直堆叠的净化装置中，具有多个冷凝蒸气通道板5的冷凝区，具有固化坩埚2的固化区和具有多个 夹带/凝固蒸汽通道板7，优选纯度为至少3N的进料金属在真空气氛中，优选不超过13Pa（10-1乇），与进料 坩埚1和冷凝蒸汽通道板5在受控温度下加热，以在进料加热区产生金属的蒸气; 金属蒸汽的一部分被冷凝以形成熔融冷凝物，其返回到进料坩埚1中; 该工艺在固化区固化高纯度金属; 固化金属的纯度至少为6N，并且含有不大于0.1ppm的Cl，F和S，总杂质含量不大于1ppm。