公开(公告)号：US4668486A

公开(公告)日：1987-05-26

申请号：US847634

申请日：1986-04-03

申请人： Neil Brown ,  Gerhard Kudermann ,  Manfred Fuchs

发明人： Neil Brown ,  Gerhard Kudermann ,  Manfred Fuchs

IPC分类号： C01F7/47 ,  C01F7/06

CPC分类号： C01F7/476

摘要： The present invention is directed to a method for removing organic substances from aluminate liquors of the Bayer process. The method comprises the steps of contacting the liquor with an oxygen containing gas under elevated pressure in the presence of metallic ions acting as a catalyst to oxidize the organic substances, precipitating the metallic ions jointly with aluminum hydroxide, separating the precipitate from the oxidized liquor and recycling the precipitated aluminum hydroxide containing the metallic ions into the oxidation step as a catalyst carrier.

摘要翻译： 本发明涉及一种从拜耳法的铝酸盐液中除去有机物质的方法。 该方法包括以下步骤：在作为催化剂的金属离子的存在下，在升高的压力下使该液体与含氧气体接触以氧化有机物质，与氢氧化铝一起沉淀金属离子，将沉淀与氧化液体分离， 将含有金属离子的沉淀的氢氧化铝回收到氧化步骤中作为催化剂载体。