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1. 发明授权

US4385038A Flotation recovery of lead, silver and gold as sulfides from electrolytic zinc process residues 失效
标题翻译：铅，银和金作为硫化物从电解锌工艺残渣中浮选回收
公开(公告)号：US4385038A
公开(公告)日：1983-05-24
申请号：US306707
申请日：1981-09-29
申请人： Jussi K. Rastas , Kaarlo M. J. Saari , Vaino V. H. Hintikka , Jaakko O. Leppinen , Aimo E. Jarvinen
发明人： Jussi K. Rastas , Kaarlo M. J. Saari , Vaino V. H. Hintikka , Jaakko O. Leppinen , Aimo E. Jarvinen
IPC分类号： B03B9/00 , B03D1/02 , B03D1/06
CPC分类号： B03B9/00 , B03D1/02
摘要： A process is disclosed for the recovery of lead, silver and gold from the iron-bearing residue of an electrolytic zinc process by froth-flotating a slurry of the iron-bearing residue in the presence of a sulfidic collector agent in order to froth-flotate the sulfides and to separate them from the iron-bearing residue. The iron-bearing residue is sulfidized selectively in order to convert the lead, silver and possibly gold substantially quantitatively to sulfides before the iron-bearing residue is froth-flotated.
摘要翻译：公开了一种从电解锌工艺的含铁残渣中回收铅，银和金的方法，该方法是在存在硫化物收集剂的情况下，通过浮选含铁残渣的浆料来浮选浮选液硫化物并将其与含铁残渣分离。含铁残留物被选择性地硫化，以便在含铁残余物被浮选之前将铅，银和可能的金基本上定量转化为硫化物。

2. 发明授权

US4579726A Process and apparatus for the removal of mercury from sulfur dioxide-bearing hot and moist gases 失效
标题翻译：从含二氧化硫的热湿气体中去除汞的方法和设备
公开(公告)号：US4579726A
公开(公告)日：1986-04-01
申请号：US628819
申请日：1984-07-09
申请人： Aimo M. F. Kuivala , Jaakko O. Leppinen , Jussi K. Poijarvi , Jussi K. Rastas
发明人： Aimo M. F. Kuivala , Jaakko O. Leppinen , Jussi K. Poijarvi , Jussi K. Rastas
IPC分类号： C01B17/56 , B01D53/64 , C01B17/74 , B01D47/00
CPC分类号： B01D53/64
摘要： Mercury is removed from sulfuric acid-bearing hot and moist smelting-plant or roasting-plant gases by cooling and scrubbing the hot gases by means of a concentrated sulfuric acid mist in order to sulfatize the mercury and to separate it from the gases. The cooling is carried out by vaporizing so much water or dilute sulfuric acid solution from the gases that the temperature of the gas drops to below the dew point, in order to produce a sulfuric acid mist which sulfatizes and washes the mercury, the gases being separated from the mist and directed to the sulfuric acid plant. The process can be carried out by means of nozzles installed in the pipe which feeds hot and moist sulfuric acid-bearing gases into the scrubbing tower of the sulfuric acid plant, water or acid obtained from the scrubbing tower being fed through the nozzles into the feed pipe in the form of a finely-divided mist.
摘要翻译：通过用浓硫酸雾冷却和洗涤热气体以使硫酸盐化并将其与气体分离，将汞从含硫酸的热和湿的冶炼厂或焙烧厂气体中除去。冷却是通过将气体中的水或稀硫酸溶液从气体的温度下降到露点以下来进行的，以产生硫酸盐化并洗涤汞的硫酸雾，气体被分离从雾中引导到硫酸厂。该过程可以通过安装在管道中的喷嘴进行，该喷嘴将含硫酸的湿气带入硫酸设备的洗涤塔中，从洗涤塔获得的水或酸通过喷嘴进料到进料中管子以细分散的薄雾形式。

3. 发明授权

US06776292B1 Apparatus for separation of solids in froth 失效
标题翻译：用于在泡沫中分离固体的装置
公开(公告)号：US06776292B1
公开(公告)日：2004-08-17
申请号：US09914179
申请日：2001-09-21
申请人： Vladimir E. Nenno , Alexander V. Lashkul , Jaakko O. Leppinen , Stig V. Bjorklof
发明人： Vladimir E. Nenno , Alexander V. Lashkul , Jaakko O. Leppinen , Stig V. Bjorklof
IPC分类号： B03D114
CPC分类号： B03D1/1412 , B03D1/1456 , B03D1/1462 , B03D1/1493 , B03D1/245
摘要： An apparatus for separation of solids in froth is presented. The apparatus includes: a housing (1), establishing a chamber (2) for flows of liquid and solid material and a froth bed (30) on the liquid; feeding means (14) for getting incoming material to be separated in contact with said froth bed (30); discharging means (6) for solid material near the bottom (12) of said housing (1); aerator means (24, 26) under the liquid surface (78) for creating bubbles and thus forming said bed of froth (30) and generating movement on the bed of froth (30); means for discharging froth from the housing (1) including at least a froth outlet (74). The apparatus is characterized by a surface (32) connected to said feeding means (14) so as to reduce the vertical speed component of the material being fed with the feeding means (14) from above said froth bed in and on to said froth bed (30).
摘要翻译：提出了一种用于分离泡沫中固体的装置。该装置包括：壳体（1），用于在液体和液体上建立用于液体和固体材料流动的腔室（2）和泡沫床（30）; 用于使进入的材料与所述泡沫床（30）接触的进料装置（14）; 在所述壳体（1）的底部（12）附近的用于固体材料的排出装置（6）; 在液体表面（78）下方的用于产生气泡并因此形成所述泡沫床（30）并在泡沫床（30）上产生运动的充气装置（24,26）; 用于从至少包括泡沫出口（74）的壳体（1）排出泡沫的装置。该装置的特征在于连接到所述进给装置（14）的表面（32），以便减少从进料装置（14）供给的材料的垂直速度分量从上述泡沫床上方到所述泡沫床（30）。

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