公开(公告)号：US4219354A

公开(公告)日：1980-08-26

申请号：US955500

申请日：1978-10-27

申请人： Jussi K. Rastas ,  Sigmund P. Fugleberg ,  Seppo O. Heimala ,  Sitg-Erik Hultholm ,  Jaakko T. I. Poijarvi

发明人： Jussi K. Rastas ,  Sigmund P. Fugleberg ,  Seppo O. Heimala ,  Sitg-Erik Hultholm ,  Jaakko T. I. Poijarvi

IPC分类号： C22B19/00 ,  C21B15/00 ,  C22B3/00 ,  C22B3/04 ,  C22B3/08 ,  C22B3/22 ,  C22B3/44 ,  C22B15/00 ,  C22B17/00 ,  C22B19/20 ,  C22B23/00 ,  C22B26/22 ,  C22B47/00 ,  C22B19/22 ,  C22B15/08 ,  C22B23/04

CPC分类号： C22B3/08 ,  C22B3/22 ,  Y02P10/234

摘要： A hydrometallurgical process for the treatment of a raw material which contains iron and other metals, with a sulfuric acid solution, in order to dissolve the metals and to precipitate and separate the iron, the separated metal sulfate solution being exposed to evaporation in order to crystallize and separate the metal sulfates from the mother liquor, which is recycled to the treatment stage performed with sulfuric acid solution, and the separated metal sulfate being recovered.

摘要翻译： 一种用于处理含有铁和其它金属的原料与硫酸溶液的湿法冶金方法，以便溶解金属并沉淀和分离铁，将分离的金属硫酸盐溶液暴露于蒸发以结晶 并将金属硫酸盐与母液分离，将其循环至用硫酸溶液进行的处理阶段，并回收分离的金属硫酸盐。

公开(公告)号：US4148862A

公开(公告)日：1979-04-10

申请号：US840041

申请日：1977-10-06

申请人： Sigmund P. Fugleberg ,  Jaakko T. I. Poijarvi

发明人： Sigmund P. Fugleberg ,  Jaakko T. I. Poijarvi

IPC分类号： C01B33/12 ,  C01G9/06 ,  C22B20060101 ,  C22B1/00 ,  C22B3/00 ,  C22B7/00

CPC分类号： C22B19/26 ,  C22B19/22 ,  Y02P10/234

摘要： A hydrometallurgical process for the treatment of a soluble silicate-bearing material for the recovery of its valuable metal content by leaching the silicate-bearing material at an elevated temperature with an aqueous solution of a mineral acid, precipitating silicic acid during the same stage in an easily settling and filtering form, the silicate-bearing material being added at such a rate that its concentration calculated as SiO.sub.2 corresponds to the simultaneously precipitating silicic acid quantity, and by finally separating the solid material from the valuable-metal-bearing solution.

摘要翻译： 一种用于处理可溶性含硅材料的湿法冶金方法，用于通过在高温下用无机酸的水溶液浸提含硅酸盐的材料来回收其有价值的金属含量，在同一阶段中沉淀硅酸 容易沉降和过滤形式，硅酸盐轴承材料的加入速度使得其计算为SiO 2的浓度对应于同时沉淀的硅酸量，并通过最终将有价值的含金属溶液分离出固体材料。

公开(公告)号：US4937057A

公开(公告)日：1990-06-26

申请号：US256120

申请日：1988-10-11

申请人： Timo T. Talonen ,  Jaakko T. I. Poijarvi

发明人： Timo T. Talonen ,  Jaakko T. I. Poijarvi

IPC分类号： C01B17/04 ,  B01D53/50 ,  B01D53/52 ,  C01B17/05

CPC分类号： C01B17/05 ,  B01D53/501 ,  B01D53/523

摘要： The present invention relates to a method for removing sulphur dioxide and possible hydrogen sulphide as well as nitric oxides from exhaust gases by means of sulphides in a liquid phase so that the sulphur is recovered in the form of molten elemental sulphur. The soluble sulphates formed in the scrubbing are regenerated after a known fashion by means of sulphides or by reducing back into sulphides and are conducted back into the sulphur dioxide absorption stage.

摘要翻译： 本发明涉及通过液相中的硫化物从废气中除去二氧化硫和可能的硫化氢以及一氧化氮的方法，以便以熔融元素硫的形式回收硫。 在洗涤中形成的可溶性硫酸盐以已知的方式通过硫化物再生，或通过还原回硫化物并被引回二氧化硫吸收阶段。