专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6159356A Process for the production of high purity copper metal from primary or secondary sulphides 失效
标题翻译：从一级或二级硫化物生产高纯度铜金属的方法
公开(公告)号：US6159356A
公开(公告)日：2000-12-12
申请号：US59569
申请日：1998-04-14
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C22B15/00 , C25C1/12
CPC分类号： C22B15/0069 , C25C1/12 , Y02P10/236
摘要： This process treats copper concentrates, either in the form of a primary sulfide, such as chalcopyrite, or a secondary sulfide, such as chalcocite and covellite, to obtain high purity copper metal having not less than 99.99% purity. In the case of a primary sulfide, the copper concentrate is subjected to leaching and is transformed into cement or a precipitated sulfide. In the case of the secondary sulfide, the copper concentrates are subjected to leaching with ferric fluoborate and fluoboric acid. Subsequent to leaching, the solution is subjected to copper electrowinning in a diaphragm cell to deposit copper on the cathode of the diaphragm cell.
摘要翻译：该方法处理以一级硫化物形式的铜精矿，例如黄铜矿，或二次硫化物，如辉铜矿和钙云母，以获得纯度不低于99.99％的高纯度铜金属。在一次硫化物的情况下，将铜精矿进行浸出并转化成水泥或沉淀的硫化物。在二次硫化物的情况下，铜精矿用氟化铁和氟硼酸浸出。在浸出之后，将溶液在隔膜电池中进行铜电解沉积，以在隔膜电池的阴极上沉积铜。

2. 发明授权

US5468354A Process for heavy metal electrowinning 失效
标题翻译：重金属电解冶金工艺
公开(公告)号：US5468354A
公开(公告)日：1995-11-21
申请号：US235914
申请日：1994-05-02
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C25C1/00 , C25C1/08 , C25C1/16
CPC分类号： C25C1/08 , C25C1/16
摘要： A process for producing metals, Me, selected from zinc, nickel, cadmium and cobalt, in which the corresponding water-soluble ammino complex Me(NH.sub.3).sub.n Cl.sub.m is formed, and such a complex, in an aqueous solution, is submitted to electrolysis in a cell which is free of there being a separator structure between the anodic and the cathodic compartments.
摘要翻译：在其中形成相应的水溶性氨基络合物Me（NH 3）n Clm的锌，镍，镉和钴中选出的金属的制造方法Me和水溶液中的这种络合物进行电解在阳极和阴极室之间不存在隔板结构的电池。

3. 发明授权

US5391267A Process for the production of alkali metal hydroxides and elemental sulfur from sulfur-containing alkali-metal salts 失效
标题翻译：从含硫碱金属盐生产碱金属氢氧化物和元素硫的方法
公开(公告)号：US5391267A
公开(公告)日：1995-02-21
申请号：US111404
申请日：1993-08-25
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C01B17/02 , C01B17/22 , C01B17/26 , C01D1/04 , C25B1/00 , C25B1/16 , C25B15/08 , C25B1/02
CPC分类号： C25B1/00 , C01B17/22 , C01B17/26 , C25B1/16
摘要： A process for the production of alkali metal hydroxides, such as caustic soda, and elemental sulfur, characterized in that to an electrochemical cell an aqueous solution of an alkali metal sulfide, e.g., sodium sulfide, is fed in order to cause the following reactions to take place:at the anode Na.sub.2 S.fwdarw.2Na.sup.+ +S+2e.sup.-at the cathode 2H.sub.2 O+2e.sup.- .fwdarw.2OH.sup.- +H.sub.2with the overall reaction being thus the following:Na.sub.2 S+2H.sub.2 O.fwdarw.2NaOH+S+H.sub.2.Elemental sulfur, which is insoluble, is recovered from the anodic solution by filtration. The NaOH solution is extracted from the cathodic compartment by the addition of water. The concentration of the solution of alkali metal hydroxide obtained is a function of the characteristics of the membrane used. The standard potential of the anodic reaction:S.sup.2- -2e=S.sup.0is lower than of the corresponding processes which led to the development of gases (Cl.sub.2, O.sub.2), thereby an adavantageous decrease in cell voltage being made possible.
摘要翻译：用于生产碱金属氢氧化物如苛性钠和元素硫的方法，其特征在于向电化学电池中加入碱金属硫化物（例如硫化钠）的水溶液，以引起以下反应发生：在阳极Na 2 S→2Na ++ S + 2e-在阴极2H 2 O + 2e→2OH- + H 2，总反应因此如下：Na 2 S + 2H 2 O-> 2NaOH + S + H 2。通过过滤从阳极溶液中回收不溶的元素硫。 NaOH溶液通过加入水从阴极室提取。所得到的碱金属氢氧化物溶液的浓度是所用膜特性的函数。阳极反应的标准电位：S2--2e = S0低于导致气体（Cl2，O2）发展的相应过程，从而使电池电压有了显着的降低。

4. 发明授权

US5372684A Process for the direct electrochemical refining of copper scrap 失效
标题翻译：铜屑直接电化学精制工艺
公开(公告)号：US5372684A
公开(公告)日：1994-12-13
申请号：US70866
申请日：1993-06-03
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C22B15/00 , C22B15/14 , C25C1/12
CPC分类号： C25C1/12 , C22B15/0008 , C22B15/0069 , Y02P10/236
摘要： Copper scrap, reduced to particulate form having particle sizes not larger than 50 mm, is leached in a suitable apparatus with a solution of ferric fluoroborate in fluoroboric acid. During leaching, copper is dissolved, with ferric fluoroborate simultaneously being reduced to ferrous fluoroborate according to the following reaction:2 Fe(BF.sub.4).sub.3 +Cu.fwdarw.Cu(BF.sub.4).sub.2 +2 Fe(BF.sub.4).sub.2(1)The resulting solution is fed to the cathodic compartment of diaphragm cell, in which copper is deposited, in compact and highly pure form, on a stainless steel cathode, from which it is periodically recovered.
摘要翻译：在适当的设备中，用氟硼酸铁溶液在含氟硼酸中浸提还原成粒径不大于50mm的颗粒状废料。在浸出过程中，铜溶解，根据以下反应同时还原为氟硼酸铁：Fe（BF 4）3 + Cu-> Cu（BF 4）2 + 2 Fe（BF 4）2（1）在不锈钢阴极上将其沉积在其中沉积铜的隔膜电池的阴极室中，从而从中定期回收。

5. 发明授权

US5534131A Process for heavy metals electrowinning 失效
标题翻译：重金属电解冶金工艺
公开(公告)号：US5534131A
公开(公告)日：1996-07-09
申请号：US524438
申请日：1995-09-06
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C25C1/00 , C25C1/08 , C25C1/12 , C25C1/16 , C25D1/16 , C25D1/08
CPC分类号： C25C1/12 , C25C1/08 , C25C1/16
摘要： The conditions for electrowinning Zn, Ni, Co and Cd metals from baths based on chlorinated ammino complexes of Me(NH.sub.3).sub.n Cl.sub.m type are substantially improved by the addition of small levels of dissolved Br, which considerably reduce the cell voltage without exerting any negative effects on cathodic current yields.
摘要翻译：基于Me（NH 3）nClm类型的氯化氨基络合物的电镀Zn，Ni，Co和Cd金属的条件通过加入少量溶解的Br而显着改善，这大大降低了电池电压，而没有发生任何负面影响阴极电流产量。

6. 发明授权

US06203769B1 Process for the treatment of fluoboric electrolyte 失效
标题翻译：氟硼酸电解质的处理方法
公开(公告)号：US06203769B1
公开(公告)日：2001-03-20
申请号：US09346114
申请日：1999-07-01
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C01B1796
CPC分类号： C01B17/96
摘要： The invention relates to a method for the treatment of fluoboric electrolyte resulting from the processes of electro-extraction of metals such as copper and lead comprising a leaching stage with fluoboric acid, in order to recycle said fluoboric acid to be recirculated to said leaching stage devoid of impurities of metals such as Me=Fe, Zn, Ca, Mg, Cd, characterized in that it comprises the stages of: a) treating said fluoboric electrolyte comprising Cu(BF4)2 or Pb(BF4)2 with H2S in order to precipitate CuS or PbS respectively in accordance with the reactions Cu(BF4)2+H2S=>CuS+2HBF4 (1) Pb(BF4)2+H2S=>PbS+2HBF4 (2) thus obtaining a solution of HBF4 containing the fluoborates of said metals Me, said solution being separated, b) treating said Me fluoborates with H2SO4 in accordance with the reaction 2 Me(BF4)n+n H2SO4=>Me(SO4)n+2n HBF4 (3) (where Me=Fe, Zn, Ca, Mg, Cd) it being possible for said sulphates Me(SO4)n to be removed so as to obtain a solution of HBF4 substantially free from impurities of said metals Me.
摘要翻译：本发明涉及一种用于处理由电解提取金属如铜和铅的方法产生的氟硼酸电解质的方法，该方法包括用氟硼酸浸出阶段，以便将所述氟硼酸循环再循环到所述浸出级中的金属杂质如Me = Fe，Zn，Ca，Mg，Cd，其特征在于它包括以下阶段：a）用H 2 S处理包含Cu（BF 4）2或Pb（BF 4）2的氟硼酸电解质，以便根据反应分别沉淀CuS或PbS，得到含有所述金属Me的氟硼酸盐的HBF 4溶液，所述溶液分离，b）根据反应（其中Me = Fe，Zn，Ca）处理所述Me氟硼酸盐，Mg，Cd），可以除去所述硫酸盐Me（SO 4）n，以获得基本上不含所述金属Me的杂质的HBF 4溶液。

7. 发明授权

US6136059A Process for reducing the electric steelworks dusts and facility for implementing it 失效
标题翻译：减少电钢厂尘埃的工艺及其实施设施
公开(公告)号：US6136059A
公开(公告)日：2000-10-24
申请号：US961989
申请日：1997-10-31
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C21C5/52 , C22B7/02 , C21B13/12
CPC分类号： C22B7/02 , C21C5/5241 , Y02P10/212 , Y02P10/253
摘要： A process for processing electric steelworks dusts containing oxidized high-iron, zinc-bearing materials in order to recover iron and zinc from [them] said dusts. The process includes the steps of: feeding the dusts to an induction furnace partially filled with a charge of metal or alloy to be smelted, wherein the charge is present as a molten bath that is made turbulent by induced currents; contacting the dusts with a surface of the turbulent molten bath inside the furnace; and reducing zinc and iron oxides contained in the dusts inside the furnace, while oxidizing zinc and carbon monoxide rising from the bath.
摘要翻译：一种处理含有氧化高铁，含锌材料的电动钢厂灰尘的方法是为了从其中回收铁和锌。该方法包括以下步骤：将灰尘送入部分填充有冶炼金属或合金的电感的感应炉，其中电荷以作为感应电流湍流的熔池存在; 使灰尘与炉内湍流熔池的表面接触; 并减少炉内灰尘中含有的锌和铁的氧化物，同时氧化从浴中升高的锌和一氧化碳。

8. 发明授权

US6086744A Production of electrolytic copper from dilute solutions contaminated by other metals 有权
标题翻译：从其他金属污染的稀释溶液中生产电解铜
公开(公告)号：US6086744A
公开(公告)日：2000-07-11
申请号：US135255
申请日：1998-08-17
申请人： Gianni Zoppi
发明人： Gianni Zoppi
IPC分类号： C25C1/12 , C25D3/04 , C25D3/06
CPC分类号： C25C1/12
摘要： The copper is selectively precipitated in the form of a sulfide from the solutions containing it, according to the reaction:Cu.sup.2+ +S.sup.2- .fwdarw.CuSThe precipitated solid, constituted by copper sulfide, is filtered, washed and then leached with a solution of ferric fluoborate and fluoboric acid, which dissolves the copper as a fluoborate while forming elemental sulfur, according to the reaction:CuS+2Fe(BF.sub.4).sub.3 .fwdarw.Cu(BF.sub.4).sub.2+2Fe(BF.sub.4).sub.2 +S.sup.oAfter filtering off the sulfur, the copper fluoborate solution is subjected to an electrolysis in a diaphragm cell, obtaining a deposit of pure copper at the cathode and a regenerated solution of ferric fluoborate at the anode, which is utilized to leach further copper sulfide.
摘要翻译：从含有溶液的溶液中选择性地以硫化物的形式沉淀出铜，根据以下反应：由硫化铜构成的Cu2 ++ S2→CuSThe沉淀固体被过滤，洗涤，然后用三价铁根据CuS + 2Fe（BF4）3→Cu（BF4）2 + 2Fe（BF4）2 +的反应，可以溶解作为氟硼酸盐的铜的氟硼酸盐和氟硼酸，然后过滤掉硫，铜箔氟溶液在隔膜电池中进行电解，在阴极处获得纯铜沉积物，在阳极获得氟硼酸铁的再生溶液，用于浸出进一步的硫化铜。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式