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1.发明授权公开(公告)号：US09085020B2
公开(公告)日：2015-07-21
申请号：US13698467
申请日：2011-05-31
申请人： Leena Lehtinen , Marko Lahtinen , Bror Nyman , Timo Haakana , Jari Tiihonen
发明人： Leena Lehtinen , Marko Lahtinen , Bror Nyman , Timo Haakana , Jari Tiihonen
CPC分类号： B09B3/00 , B01F7/00216 , B01F7/00441 , B01F7/00633 , B01F7/245 , B01F2215/0431 , C22B3/20 , C22B3/44 , C22B7/006 , C22B19/22 , Y02P10/234
摘要： A method and apparatus for converting an iron-bearing residue generated in a hydrometallurgical process that contains small amounts of soluble heavy metals into a stable form by means of a neutralizing agent. The residue is elutriated and the elutriated residue is fed into at least one stabilization or homogenization reactor, into which a neutralizing agent is also routed, and the homogenous mixing together of the residue and neutralizing agent takes place by means of a helix mixer, where the ratio of the diameter of the mixer to the diameter of the reactor is 0.75-0.99.
摘要翻译： 一种通过中和剂将含有少量可溶性重金属的湿法冶金工艺中产生的含铁残渣转化成稳定形式的方法和装置。 将残余物淘洗并将淘析的残余物进料至至少一个稳定化或均化反应器中，中和剂也被引入该反应器中，通过螺旋混合器将残留物和中和剂均匀混合在一起，其中 混合器直径与反应器直径之比为0.75-0.99。
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2.发明申请公开(公告)号：US20130060075A1
公开(公告)日：2013-03-07
申请号：US13698467
申请日：2011-05-31
申请人： Leena Lehtinen , Marko Lahtinen , Bror Nyman , Timo Haakana , Jari Tiihonen
发明人： Leena Lehtinen , Marko Lahtinen , Bror Nyman , Timo Haakana , Jari Tiihonen
CPC分类号： B09B3/00 , B01F7/00216 , B01F7/00441 , B01F7/00633 , B01F7/245 , B01F2215/0431 , C22B3/20 , C22B3/44 , C22B7/006 , C22B19/22 , Y02P10/234
摘要： A method and apparatus for converting an iron-bearing residue generated in a hydrometallurgical process that contains small amounts of soluble heavy metals into a stable form by means of a neutralising agent. The residue is elutriated and the elutriated residue is fed into at least one stabilisation or homogenisation reactor, into which a neutralising agent is also routed, and the homogenous mixing together of the residue and neutralising agent takes place by means of a helix mixer, where the ratio of the diameter of the mixer to the diameter of the reactor is 0.75-0.99.
摘要翻译： 一种通过中和剂将含有少量可溶性重金属的湿法冶金工艺中产生的含铁残渣转化成稳定形式的方法和装置。 将残余物淘洗并将淘析的残余物进料至至少一个稳定或均化反应器中，中和剂也被引入该反应器中，并且通过螺旋混合器将残留物和中和剂均匀混合在一起，其中 混合器直径与反应器直径之比为0.75-0.99。
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3.发明授权公开(公告)号：US07294319B2
公开(公告)日：2007-11-13
申请号：US10497821
申请日：2002-12-03
申请人： Marko Lahtinen , Leena Lehtinen , Heikki Takala
发明人： Marko Lahtinen , Leena Lehtinen , Heikki Takala
CPC分类号： C22B3/44 , C22B19/26 , Y02P10/234
摘要： This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution is adjusted to a value of at least 2.7, oxygen-containing gas is fed into the solution and part of the hematite thus formed is recirculated to the precipitation stage.
摘要翻译： 本发明涉及一种在电解锌制备过程中从大气条件下从硫酸锌溶液中除去铁作为赤铁矿的方法。 根据该方法，将含铁溶液的pH调节至至少2.7的值，将含氧气体进料到溶液中，并将由此形成的部分赤铁矿再循环至沉淀阶段。
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4.发明申请公开(公告)号：US20050069474A1
公开(公告)日：2005-03-31
申请号：US10497821
申请日：2002-12-03
申请人： Marko Lahtinen , Leena Lehtinen , Heikki Takala
发明人： Marko Lahtinen , Leena Lehtinen , Heikki Takala
CPC分类号： C22B3/44 , C22B19/26 , Y02P10/234
摘要： This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution is adjusted to a value of at least 2.7, oxygen-containing gas is fed into the solution and part of the hematite thus formed is recirculated to the precipitation stage.
摘要翻译： 本发明涉及一种在电解锌制备过程中从大气条件下从硫酸锌溶液中除去铁作为赤铁矿的方法。 根据该方法，将含铁溶液的pH调节至至少2.7的值，将含氧气体进料到溶液中，并将由此形成的部分赤铁矿再循环至沉淀阶段。
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公开(公告)号：US07682581B2
公开(公告)日：2010-03-23
申请号：US10577678
申请日：2004-10-22
申请人： Leena Lehtinen , Marko Lahtinen , Marika Jyrälä , Matti Vuokko
发明人： Leena Lehtinen , Marko Lahtinen , Marika Jyrälä , Matti Vuokko
CPC分类号： C22B19/26 , C22B3/24 , C22B3/42 , Y02P10/234
摘要： The purpose of the invention is to remove copper selectively from a concentrated zinc sulphate solution by ion exchange. The method enables a significant reduction in the use of zinc powder during the solution purification of zinc sulphate solution and makes possible to avoid usage of arsenic or antimony trioxides as a precipitation chemical. The method is to be combined with the chloride removal that occurs as a sub-stage of solution purification.
摘要翻译： 本发明的目的是通过离子交换从浓硫酸锌溶液中选择性地除去铜。 该方法能够在硫酸锌溶液的溶液净化期间显着降低锌粉的使用，并且可以避免使用砷或三氧化锑作为沉淀化学品。 该方法应与作为溶液纯化的次级进行的氯化物去除相结合。
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公开(公告)号：US20060213332A1
公开(公告)日：2006-09-28
申请号：US10544272
申请日：2004-02-24
申请人： Aimo Jarvinen , Marko Lahtinen , Heikki Takala
发明人： Aimo Jarvinen , Marko Lahtinen , Heikki Takala
IPC分类号： C22B19/20
CPC分类号： C22B3/08 , C22B19/22 , C22B19/26 , Y02P10/234
摘要： The invention relates to method for leaching zinc-containing materials in connection with the electrolytic recovery of zinc. According to this method, the feed materials i.e. zinc calcine and zinc sulphide, are leached in three stages, in which he sulphuric acid content of the stages rises in accordance with the direction in which the solids are moving. The solids and solution formed in the leaching stages are routed throughout the process countercurrently in relation to each other.
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公开(公告)号：US07517383B2
公开(公告)日：2009-04-14
申请号：US10544272
申请日：2004-02-24
申请人： Aimo Järvinen , Marko Lahtinen , Heikki Takala
发明人： Aimo Järvinen , Marko Lahtinen , Heikki Takala
CPC分类号： C22B3/08 , C22B19/22 , C22B19/26 , Y02P10/234
摘要： The invention relates to method for leaching zinc-containing materials in connection with the electrolytic recovery of zinc. According to this method, the feed materials i.e. zinc calcine and zinc sulphide, are leached in three stages, in which he sulphuric acid content of the stages rises in accordance with the direction in which the solids are moving. The solids and solution formed in the leaching stages are routed throughout the process countercurrently in relation to each other.
摘要翻译： 本发明涉及与锌的电解回收相关的浸锌含锌材料的方法。 根据该方法，将进料物质即煅烧锌和硫化锌分三个阶段进行浸出，根据固体的移动方向，其阶段的硫酸含量升高。 在浸出阶段中形成的固体和溶液在整个过程中相对于彼此逆流地引导。
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公开(公告)号：US20080271572A1
公开(公告)日：2008-11-06
申请号：US12096004
申请日：2006-12-27
IPC分类号： C22B61/00
CPC分类号： C22B19/26 , C22B3/44 , C22B58/00 , Y02P10/234
摘要： Sulphidic zinc concentrate usually also includes small amounts of rare metals such as indium and gallium. If the content of these metals in the raw material is sufficiently high, their recovery may be economically worthwhile. In the method according to the invention the recovery of indium and other desirable rare metals takes place in a zinc leaching process, in which at least part of the sulphidic concentrate is leached directly without roasting.
摘要翻译： 硫化锌精矿通常还包括少量稀有金属如铟和镓。 如果原料中的这些金属的含量足够高，则它们的回收在经济上是有价值的。 在根据本发明的方法中，铟和其它所需的稀有金属的回收在锌浸出过程中发生，其中至少部分硫化精矿直接浸出而不进行焙烧。
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公开(公告)号：US06492551B1
公开(公告)日：2002-12-10
申请号：US09787080
申请日：2001-04-16
申请人： Erkki Paatero , Marko Lahtinen , Kari Saari , Pekka Vapaaoksa
发明人： Erkki Paatero , Marko Lahtinen , Kari Saari , Pekka Vapaaoksa
IPC分类号： C07C5302
CPC分类号： C07C51/412 , C07C53/06
摘要： A method for manufacturing alkali metal or alkaline-earth metal formate, starting from a formate anion comprises at least the following sequential steps: A) conversion of a solid anion exchanger to formate form by feeding into it a solution containing a formate anion, B) exchanging the formate anion in the anion exchanger for a replacing anion by feeding into it an alkali metal or alkaline-earth metal salt solution of this replacing anion, C) recovering the alkali metal or alkaline-earth metal formate solution eluted from the anion exchanger during the exchange of the formate anion. The anion exchanger is converted to formate form by feeding into it a sodium formate solution, a formic acid solution or a solution which contains both sodium formate and formic acid. The method can be used for production of potassium formate or calcium formate.
摘要翻译： 从甲酸阴离子开始制造碱金属或碱土金属甲酸盐的方法至少包括以下顺序步骤：A）通过将固体阴离子交换剂转化为甲酸盐形式，将含有甲酸根阴离子的溶液B） 通过向该阴离子交换剂中交换甲酸阴离子来替代该替代阴离子的碱金属或碱土金属盐溶液，C）回收从阴离子交换器洗脱的碱金属或碱土金属甲酸盐溶液 甲酸阴离子的交换。 通过将阴离子交换剂转化为甲酸盐形式，将其加入甲酸钠溶液，甲酸溶液或含有甲酸钠和甲酸的溶液。 该方法可用于生产甲酸钾或甲酸钙。
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公开(公告)号：US06429333B1
公开(公告)日：2002-08-06
申请号：US09868514
申请日：2001-06-19
申请人： Kari Saari , Esko Tirronen , Antti Vuori , Marko Lahtinen
发明人： Kari Saari , Esko Tirronen , Antti Vuori , Marko Lahtinen
IPC分类号： C07C5302
摘要： In a method for preparing formic acid, methyl formate is prepared with methanol as a reactant. In the method, methyl formate obtained from methanol in a reaction is fed through an ion exchange bed, in which the hydrolysis into formic acid and methanol and the separation of formic acid from methanol take place simultaneously by means of the catalytic and adsorbent properties of a solid in exchange material in the ion exchange bed
摘要翻译： 在制备甲酸的方法中，用甲醇作为反应物制备甲酸甲酯。 在该方法中，将甲醇从反应中得到的甲酸甲酯通过离子交换床进料，其中水解成甲酸和甲醇，甲酸从甲醇中分离，通过催化和吸附性能同时进行 固体在离子交换床中的交换材料
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