Method for producing potassium fluoroniobate crystals and potassium fluoroniobate crystals
    3.
    发明授权
    Method for producing potassium fluoroniobate crystals and potassium fluoroniobate crystals 失效
    生产氟铌酸钾晶体和氟硼酸钾晶体的方法

    公开(公告)号:US06800268B2

    公开(公告)日:2004-10-05

    申请号:US10182302

    申请日:2002-07-26

    IPC分类号: C01G3500

    摘要: Disclosed herein is a method for producing potassium fluoroniobate crystals by which highly pure, large-sized potassium fluoroniobate crystals can be obtained in high yield and which is advantageous from the viewpoints of material cost and material-dissolving operation; and potassium fluoroniobate crystals. This production method comprises the first and second steps (a) and (b) of (a) adding a potassium-containing electrolyte to a starting material comprising niobium to precipitate potassium oxyfluoroniobate and/or fluoroniobate as coarse crystals, and separating the coarse crystals by filtration, and (b) dissolving the coarse crystals in a recrystallization solvent that is an aqueous solution comprising 12 to 35% by weight of hydrofluoric acid and that has been heated to a temperature of 50° C. or more, and cooling the solution to 40° C. or lower at a cooling rate of less than 20° C./h to precipitate potassium fluoroniobate as crystals.

    摘要翻译: 本文公开了一种生产氟代铌酸钾晶体的方法,通过该方法可以以高产率获得高纯度的大型氟化铌酸钾晶体,并且从材料成本和材料溶解操作的观点来看是有利的; 和氟代铌酸钾晶体。 该制造方法包括(a)的(a)的第一和第二工序(a)和(b),将含有电解质的电解质添加到包含铌的起始材料中,以沉淀出作为粗晶体的氟氧化铌酸钾和/或氟化铌酸盐,并将粗晶体分离 过滤,和(b)将粗晶体溶解在重结晶溶剂中,该重结晶溶剂是包含12-35%(重量)氢氟酸的水溶液,并将其加热至50℃或更高的温度,并将该溶液冷却至 40℃以下,冷却速度小于20℃/小时,以结晶形式析出氟代铌酸钾。

    Method of operating offices of financial institutes
    5.
    发明授权
    Method of operating offices of financial institutes 失效
    金融机构办公室运作方式

    公开(公告)号:US5206487A

    公开(公告)日:1993-04-27

    申请号:US519472

    申请日:1990-05-07

    CPC分类号: G07F19/20 G07F19/201

    摘要: In a window of an office of a banking facility, there is disposed a composite apparatus in which a window machine facing the teller is united with an automatic cash handling machine facing the lobby and which is integrally configured in a window counter. During the office hours of the window, the window machine of the composite apparatus is employed by the teller for banking services. In a period of time beyond the office hours, a shutter for prevention of crimes is moved downward onto the window counter, which enables the users to externally access the automatic cash handling machine.

    摘要翻译: 在银行设施的办公室的窗口中,设置了一个复合装置,其中面向柜员的窗口机器与面向大厅的自动现金处理机器结合在一起并且整体配置在窗口计数器中。 窗户的办公时间内,复合设备的窗机由出纳员用于银行服务。 在办公时间超过办公时间的一段时间内,防止犯罪的快门向下移动到窗口计数器上,这使得用户能够外部访问自动现金处理机。