公开(公告)号：US06676824B2

公开(公告)日：2004-01-13

申请号：US09906663

申请日：2001-07-18

申请人： Roger C. Urquhart ,  Roman Deshko ,  Sami Mourad

发明人： Roger C. Urquhart ,  Roman Deshko ,  Sami Mourad

IPC分类号： C25C304

CPC分类号： C25C3/04 ,  C01F5/30 ,  C01P2006/80

摘要： A process for purification of molten salt electrolytes containing magnesium chloride in which oxygen-containing impurities such as magnesium hydroxychloride are destroyed both electrolytically and chemically. The process comprises passing a direct current through a magnesium chloride-containing molten salt electrolyte, thereby electrolyzing a portion of the oxygen-containing impurities at the anode. In addition, the voltage and current of the direct current are sufficiently high to cause electrolysis of a small proportion of the magnesium chloride present in the electrolyte to thereby produce finely dispersed droplets of elemental magnesium in the electrolyte. The droplets of elemental magnesium react chemically with oxygen-containing impurities present in the electrolyte. The purified electrolyte is transferred to an electrolytic cell for the production of magnesium metal and chlorine gas.

摘要翻译： 一种纯化含有氯化镁的熔融盐电解质的方法，其中含氧杂质如羟基氯化镁被电解和化学破坏。 该方法包括使直流电流通过含氯化镁的熔融盐电解质，从而在阳极处电解一部分含氧杂质。 此外，直流电压和电流足够高，导致存在于电解质中的少量氯化镁的电解，从而在电解质中产生微细分散的元素镁液滴。 元素镁的液滴与存在于电解质中的含氧杂质发生化学反应。 将纯化的电解质转移到用于生产镁金属和氯气的电解池中。

公开(公告)号：US06520388B1

公开(公告)日：2003-02-18

申请号：US09703371

申请日：2000-10-31

申请人： Vladimir Gavrilenco ,  Roger C. Urquhart ,  Roman Deshko ,  Allen H. Schultz

发明人： Vladimir Gavrilenco ,  Roger C. Urquhart ,  Roman Deshko ,  Allen H. Schultz

IPC分类号： B22D3700

CPC分类号： C22B9/006 ,  B22D37/00 ,  C22B26/22

摘要： A casting furnace for continuous casting of magnesium comprises a furnace body divided into at least two compartments by at least one vertical weir. Inside each compartment, an upper layer of molten magnesium is in contact with a lower layer of a liquid heating medium, preferably a molten salt. The top of the weir is situated below a maximum level of the molten magnesium in the furnace. The weir is free of openings between its top and the magnesium/salt interface. The molten magnesium from primary (electrolytic) production or an alloy preparation furnace is introduced into a feed compartment of the furnace through a discharge pipe having means to direct the magnesium horizontally along the magnesium/salt interface, thereby minimizing intermixing of the magnesium and salt layer. The weir(s) separating the compartments minimize the effects of turbulence on the magnesium being pumped from the extraction compartment and also assist in minimizing the intermixing of the magnesium and salt layers, thereby providing a more energy efficient casting process capable of producing high quality castings.

摘要翻译： 用于连续铸造镁的铸造炉包括通过至少一个垂直堰分成至少两个隔室的炉体。 在每个隔室内，熔融镁的上层与液体加热介质的下层接触，优选熔融盐。 堰的顶部位于炉内熔融镁的最大水平以下。 堰在顶部和镁/盐界面之间没有开口。 来自初级（电解）生产的熔融镁或合金制备炉通过具有将镁水平地沿着镁/盐界面引导的装置的排放管引入炉的进料室，从而最小化镁和盐层的混合 。 分隔隔室的堰将湍流对从抽出室抽出的镁的影响最小化，并且还有助于最小化镁和盐层的混合，从而提供能够生产高质量铸件的更节能的铸造工艺 。