公开(公告)号：US20150122082A1

公开(公告)日：2015-05-07

申请号：US14394697

申请日：2013-04-15

申请人： Outotec (Finland) Oy

发明人： Maija-Leena Metsarinta ,  Jussi Liipo ,  Pekka Kurki ,  Madeleine Scheidema

IPC分类号： C22B7/04 ,  C22B5/02 ,  C22B4/00

CPC分类号： C22B7/04 ,  C04B5/00 ,  C22B4/00 ,  C22B5/02 ,  Y02P10/212

摘要： The invention relates to a method for processing slags of non-ferrous metallurgy, containing iron and valuable metals, to produce clean slag that is free of detrimental substances and valuable metals and suitable as it is for use as a raw material or construction material. Slag is reduced in a reduction furnace (18) with the help of reducing agents (19) so far that at least 5% of the iron of the slag is reduced into metal. At the same time, some of the valuable metals, such as zinc, lead, arsenic and cadmium, vaporize. The contents of the reduction furnace (18) are continuously mixed to prevent separation of a metallic phase from the slag. The generated slag-metal mixture (21) is tapped off from the reduction furnace (18), cooled, crushed and ground to a finer size. Finally, a metal fraction (26) is separated from a clean slag (25).

摘要翻译： 本发明涉及一种用于处理含铁和有价值金属的有色冶金炉渣，以产生不含有害物质和贵重金属的清洁炉渣，并且适用于原料或建筑材料。 在还原剂（19）的帮助下，在还原炉（18）中还原炉渣，使得至少5％的炉渣铁还原成金属。 同时，一些有价值的金属，如锌，铅，砷和镉，蒸发。 还原炉（18）的内容物被连续混合，以防止金属相与炉渣分离。 将生成的渣 - 金属混合物（21）从还原炉（18）中分离，冷却，粉碎并研磨成更细的尺寸。 最后，将金属部分（26）与干净的炉渣（25）分离。

公开(公告)号：US09435005B2

公开(公告)日：2016-09-06

申请号：US14394697

申请日：2013-04-15

申请人： Outotec (Finland) Oy

发明人： Maija-Leena Metsarinta ,  Jussi Liipo ,  Pekka Kurki ,  Madeleine Scheidema

IPC分类号： C22B7/02 ,  C22B4/00 ,  C22B5/02 ,  C22B7/04 ,  C04B5/00

CPC分类号： C22B7/04 ,  C04B5/00 ,  C22B4/00 ,  C22B5/02 ,  Y02P10/212

摘要： A method for processing slags containing iron and non-ferrous metals, to produce clean slag free of detrimental substances and non-ferrous metals and suitable for use as a raw material or construction material. Slag is reduced in a reduction furnace with the help of reducing agents so that at least 5% of the iron of the slag is reduced into metal. Some of the non-ferrous metals, such as zinc, lead, arsenic and cadmium, vaporize. The contents of the reduction furnace are continuously mixed to prevent separation of a metallic phase from the slag. The generated slag-metal mixture is tapped off from the reduction furnace, cooled, crushed and ground to a finer size. Finally, a metal fraction is separated from a clean slag.

摘要翻译： 一种处理含有铁和有色金属的炉渣的方法，生产不含有害物质和有色金属的清洁炉渣，适用于原料或建筑材料。 在还原剂的帮助下，还原炉还原炉渣，使渣中至少5％的铁还原成金属。 一些有色金属，如锌，铅，砷和镉，蒸发。 还原炉的内容物被连续混合，以防止金属相与炉渣分离。 将生成的渣 - 金属混合物从还原炉中分离出来，冷却，粉碎并研磨成更细的尺寸。 最后，将金属部分与干净的炉渣分开。