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1. 发明授权

US11692238B2 Method for disposal of waste printed circuit board thermal cracking slag and smelting soot 有权
公开(公告)号：US11692238B2
公开(公告)日：2023-07-04
申请号：US17625746
申请日：2020-11-11
申请人： Beijing University of Technology
发明人： Yufeng Wu , Gongqi Liu , Bin Li
IPC分类号： C22B1/00 , C22B1/06 , C22B7/00 , C22B11/00 , C22B15/00 , C22B19/30
CPC分类号： C22B1/06 , C22B7/007 , C22B11/042 , C22B15/0071 , C22B19/30
摘要： The invention discloses a method for cracking slag and smelting soot of the waste circuit board, belongs to the field of comprehensive recycling of valuable elements from typical soot of waste circuit boards, and particularly relates to a method for cracking slag and smelting soot of the waste circuit board for debromination and comprehensive recovery of copper and zinc. The method includes the following steps of: crushing and sorting, mixture roasting, reinforced leaching, replacement and silver precipitation, sulfuration and copper precipitation, and evaporation crystallization. Compared to traditional recycling technology, the purpose of treating two kinds of solid waste in a coupling mode through one recycling technology is achieved. Through mixed sulfuric acid roasting, the requirement of bromide synergistic removal of the waste circuit board cracking slag and smelting soot is met, and the purpose of selective conversion of copper and zinc is achieved.

2. 发明申请

US20170226610A1 DEVICE AND METHOD FOR RECOVERING A NON-FERROUS METAL FROM HOT DROSS 审中-公开
公开(公告)号：US20170226610A1
公开(公告)日：2017-08-10
申请号：US15324508
申请日：2015-06-24
申请人： LIGHT METALS LTD.
发明人： Yury Nikolaevich POPOV , Peter Vasilievich POLYAKOV , Olga Nikolaevna POPOVA
IPC分类号： C22B7/04 , C22B21/00 , C22B19/30 , C22B7/00 , C22B26/22
CPC分类号： C22B7/04 , C22B7/005 , C22B19/30 , C22B21/0069 , C22B26/22 , Y02P10/212
摘要： This invention relates to the field of recycling non-ferrous metals (for example, aluminium and alloys thereof, magnesium and zinc). The claimed device comprises: a frame with a dross compression head; an ingot mold for collecting metal compressed from the dross; a dross pot mounted on said ingot mold; at least one through opening with a connection means for supplying a vacuum, said opening being situated in the bottom part of the dross pot and/or in the ingot mold; and a seal, situated in the gap between the dross pot and the ingot mold; furthermore, one or several through drainage openings are provided in the bottom part of the dross pot. The device may comprise a seal between the dross compression head and the dross pot. The head may be provided with one or several ribs. The dross pot may be provided with one or several ribs. The head may be hollow and provided with two or more air-cooling connecting pipes. The device may comprise a cover, sealingly mounted on a rod of a hydraulic cylinder of a device for compressing hot dross such as to be capable of sliding along the rod, said cover sealingly conforming to the edges of the dross pot. The device may comprise a cover, sealingly mounted on a rod of a hydraulic cylinder of a dross press such as to be capable of sliding along the rod with the aid of pneumatic or hydraulic cylinders (1 to 4 in total), said cover sealingly conforming to the edges of the dross pot. The device may comprise a cover, sealingly mounted on a rod of a hydraulic cylinder of a dross press such as to be capable of sliding along the rod, said cover sealingly conforming to the edges of the dross pot, and at least one through opening with a connection means for supplying an inert gas. The device may comprise one or several dross pot vibrators and/or head vibrators, or magnetohydrodynamic (MHD) pumps, for moving the metal toward the one or several drainage openings in the bottom part of the dross pot. The claimed method for recovering a non-ferrous metal from hot dross, preferably aluminium, aluminium alloy, magnesium or zinc dross, comprises the following steps/operations: (a) removing dross to the dross pot of the above-mentioned device; (b) collecting a non-ferrous metal, which is drained through at least one through opening in the bottom part of the dross pot; (c) mechanically compressing the dross by the application of force to the dross between a compression head and the dross pot in order to recover a non-ferrous metal from the dross, enable the migration of the non-ferrous metal in the direction of the surface boundary of the compressed dross, the formation of an outer layer of non-ferrous metal, which encapsulates an inner oxide core of dross between the aforementioned compression head and the dross pot, and the drainage of a portion of the non-ferrous metal through a through opening(s) in the bottom part of the dross pot, and to prevent oxygen from penetrating the non-ferrous metal in the dross; and (d) supplying a vacuum to the bottom part of the dross pot and/or to the ingot mold, which comprises at least one through opening with a connection means for supplying a vacuum, and a seal, situated in en the gap between the dross pot and the ingot mold, the dross pot being provided with one or several through drainage openings in the bottom part thereof; and, simultaneously with (c) and (d), (e) collecting the non-ferrous metal drained through the through opening in the bottom part of the dross pot; and (f) cooling the compressed dross and the non-ferrous metal in order to harden the non-ferrous metal, thus reducing the thermite reaction of the non-ferrous metal and Noxygen in the dross by combining the above-mentioned compression of the dross with the effect of a vacuum and the cooling of the metal. The invention increases the recovery of a non-ferrous metal from dross.

3. 发明授权

US08574339B2 Method for the selective acidic dezincification of steel scrap 有权
标题翻译：废钢选择性酸性脱锌方法
公开(公告)号：US08574339B2
公开(公告)日：2013-11-05
申请号：US13120534
申请日：2009-09-23
申请人： Eberhard Gock , Hans-Bernd Pillkahn , Udo Meynerts
发明人： Eberhard Gock , Hans-Bernd Pillkahn , Udo Meynerts
IPC分类号： C22B3/06 , C22B19/30
CPC分类号： C22B7/007 , C22B1/005 , C22B3/08 , C22B19/30 , C23F1/30 , C23F1/44 , Y02P10/216 , Y02P10/234
摘要： Complete dezincing of steel scrap is achieved by the addition of oils, whereupon the dissolution of iron is substantially suppressed through the autogenous inhibition effect of the oils. The steel scrap arising when the dezincing process has been completed is protected against corrosion by the remaining film of oil, the corrosion protection preventing the formation of iron oxide layers and thus blackening of the scrap material. The oil discharged with the dezincing solution can be separated as a pure phase by resorting to flotation in support of the process and can then be reused as an inhibitor.
摘要翻译：通过添加油来实现废钢的完全除铁，因此通过油的自发抑制作用基本上抑制了铁的溶解。完成除锌工艺后产生的废钢被保留的油膜残留腐蚀，防腐蚀防止氧化铁层的形成，从而使废料变黑。用去屑溶液排出的油可以作为纯相分离，借助于浮选以支持该方法，然后可以再次用作抑制剂。

4. 发明授权

US08435323B2 Batchwise working-up recycling materials in a rotatable reactor 有权
标题翻译：在可旋转的反应器中分批处理回收材料
公开(公告)号：US08435323B2
公开(公告)日：2013-05-07
申请号：US11126342
申请日：2005-05-11
申请人： Olof Sandberg
发明人： Olof Sandberg
IPC分类号： C21C1/04 , C21C5/30
CPC分类号： C22B7/003 , C22B1/216 , C22B15/0056 , C22B19/30 , C22B19/38 , F27B7/2083 , Y02P10/214 , Y02P10/22 , Y02P10/232 , Y02P10/234
摘要： A process for batchwise working-up valuable metals containing recycling materials having a content of organic constituents so high that its use as smelting materials in conventional metal smelting processes is not suitably or even possible. The material is charged to a tiltable reactor rotatable along its own longitudinal axis having a common opening for charging and emptying. The material is heated to a temperature promoting the expulsion of organic constituents by pyrolysis and/or combustion. The material consists at least to an essential part of such size fractions that admits a continuous charging during operation. The process is characterized in that said material during operation is charged continuously in an adjustable stream being controlled and/or adjusted by means of running measurements of different process variables so that the flow and composition of the combustible gas and the heat release is kept under control. A worked-up product substantially free from any organic substance is withdrawn from the reactor and is added to a conventional metal smelting process. The material is suitably supplied during operation by means of a charging equipment provided against or down through the single opening of the reactor by means of gravity and/or a pneumatic transport gas.
摘要翻译：分批处理含有有机成分含量高的再循环材料的贵重金属的方法，使得其在常规金属熔炼方法中作为冶炼材料的用途不合适或甚至不可行。该材料被装载到可沿其自身的纵向轴线旋转的可倾斜反应器，该反应器具有用于充电和排空的公共开口。将该材料加热至通过热解和/或燃烧促进有机成分的排出的温度。该材料至少包括在运行期间允许连续充电的这种尺寸部分的主要部分。该方法的特征在于，操作期间的所述材料以可调整的流量连续地进行加载，其通过不同工艺变量的运行测量来控制和/或调节，使得可燃气体和热释放的流动和组成保持在控制之下。将基本上不含任何有机物质的后处理产品从反应器中取出并加入常规的金属冶炼工艺中。该材料在操作期间通过借助于重力和/或气动输送气体抵抗或向下通过反应器的单个开口而设置的装料设备适当地供给。

5. 发明授权

US08308933B2 Method of recovering valuable metals from IZO scrap 有权
标题翻译：从IZO废料中回收贵重金属的方法
公开(公告)号：US08308933B2
公开(公告)日：2012-11-13
申请号：US12863656
申请日：2009-01-30
申请人： Yuichiro Shindo , Kouichi Takemoto
发明人： Yuichiro Shindo , Kouichi Takemoto
IPC分类号： C25C1/22 , C25C1/16
CPC分类号： C22B58/00 , C01G9/02 , C01G15/00 , C22B3/045 , C22B3/22 , C22B7/006 , C22B19/30 , C25B1/00 , C25C1/22 , Y02P10/234
摘要： Provided are a method of recovering valuable metals from IZO scrap, wherein valuable metals are recovered as hydroxides of indium and zinc by using an insoluble electrode as an anode or a cathode and an IZO scrap as the other cathode or anode as the opposite electrode, and performing electrolysis while periodically reversing polarity; and a method of recovering valuable metals from IZO scrap, wherein the hydroxides of indium and zinc obtained by the electrolysis are roasted and valuable metals are recovered as oxides of indium and zinc. Specifically, provided is a method which enables the efficient recovery of indium and zinc from IZO scrap such as a spent indium-zinc oxide (IZO) sputtering target and IZO mill ends arising during the manufacture of such a sputtering target.
摘要翻译：提供从IZO废料中回收贵重金属的方法，其中通过使用不溶性电极作为阳极或阴极以及作为另一阴极或阳极的IZO废料作为相对电极，有价金属作为铟和锌的氢氧化物回收，以及在周期性地反转极性的同时进行电解; 以及从IZO废料中回收有价金属的方法，其中通过电解获得的铟和锌的氢氧化物被焙烧，有价金属作为铟和锌的氧化物回收。具体地说，提供了能够在制造这样的溅射靶时产生的IZO废料例如废铟 - 氧化锌（IZO）溅射靶和IZO研磨端有效回收铟和锌的方法。

6. 发明授权

US08308932B2 Method of recovering valuable metals from IZO scrap 有权
标题翻译：从IZO废料中回收贵重金属的方法
公开(公告)号：US08308932B2
公开(公告)日：2012-11-13
申请号：US12863610
申请日：2009-01-30
申请人： Yuichiro Shindo , Kouichi Takemoto
发明人： Yuichiro Shindo , Kouichi Takemoto
IPC分类号： C25C1/22 , C25C1/16
CPC分类号： C22B3/045 , C01G9/02 , C01G15/00 , C22B3/22 , C22B7/006 , C22B19/30 , C22B58/00 , C25B1/00 , C25C1/22 , Y02P10/234
摘要： Provided are a method of recovering valuable metals from IZO scrap, wherein indium and zinc are recovered as hydroxides by using an IZO scrap as both an anode and a cathode, and performing electrolysis while periodically reversing polarity; and a method of recovering valuable metals from IZO scrap, wherein the hydroxides of indium and zinc obtained by the electrolysis are roasted and indium and zinc are recovered as oxides. Specifically, provided is a method which enables the efficient recovery of indium and zinc from IZO scrap such as a spent indium-zinc oxide (IZO) sputtering target and IZO mill ends arising during the manufacture of such a sputtering target.
摘要翻译：提供从IZO废料中回收贵重金属的方法，其中通过使用IZO废料作为阳极和阴极，铟和锌作为氢氧化物回收，并且在周期性地反转极性的同时进行电解; 以及从IZO废料中回收有价金属的方法，其中通过电解获得的铟和锌的氢氧化物被焙烧，铟和锌作为氧化物回收。具体地说，提供了能够在制造这样的溅射靶时产生的IZO废料例如废铟 - 氧化锌（IZO）溅射靶和IZO磨终端有效回收铟和锌的方法。

7. 发明申请

US20120186395A1 METHOD FOR PRODUCING BRIQUETTES, METHOD FOR PRODUCING REDUCED METAL, AND METHOD FOR SEPARATING ZINC OR LEAD 审中-公开
标题翻译：生产沥青的方法，生产减少金属的方法和分离锌或铅的方法
公开(公告)号：US20120186395A1
公开(公告)日：2012-07-26
申请号：US13497645
申请日：2010-09-24
申请人： Takao Harada , Haruyasu Michishita , Yutaka Miyakawa , Koijiro Fuji , Noriaki Mizutani
发明人： Takao Harada , Haruyasu Michishita , Yutaka Miyakawa , Koijiro Fuji , Noriaki Mizutani
IPC分类号： C22B5/00 , C22B13/00 , C22B19/20 , C22B1/24
CPC分类号： C22B1/24 , C21B13/0046 , C21B13/006 , C21B13/105 , C22B1/243 , C22B1/248 , C22B7/02 , C22B19/30 , Y02P10/216
摘要： Disclosed is a method for producing briquettes, by which briquettes having enhanced strength can be produced even when the amount of a binder used therefor is reduced as much as possible. Specifically disclosed is a method for producing briquettes, which comprises: a step of forming a primary granular material having an apparent density of 1,000 to 4,000 kg/m3 using a powder of metal oxides including iron oxide and one or more oxides selected from among of zinc oxide, lead oxide, and titanium oxide; and a step of forming a secondary granular material by compressing a plurality of primary granular materials, while having the primary granular materials contain one or more metal oxides selected from among the zinc oxide, lead oxide, and titanium oxide.
摘要翻译：公开了一种生产团块的方法，即使尽可能地减少用于其中的粘合剂的量，也可以产生具有增强强度的团块。具体公开了一种生产团块的方法，其包括：使用包含氧化铁和一种或多种选自以下的氧化物的金属氧化物的粉末形成表观密度为1,000至4,000kg / m 3的初级粒状材料的步骤氧化物，氧化铅和氧化钛; 以及通过压缩多个一次粒状物质而形成二次粒状物的工序，同时具有一次粒状物质含有选自氧化锌，氧化铅，氧化钛中的一种以上的金属氧化物。

8. 发明申请

US20110107874A1 METHOD FOR PRODUCING BRIQUETTE, METHOD FOR PRODUCING REDUCED METAL, AND METHOD FOR SEPARATING ZINC OR LEAD 有权
标题翻译：生产沥青的方法，生产减少金属的方法和分离锌或铅的方法
公开(公告)号：US20110107874A1
公开(公告)日：2011-05-12
申请号：US13001728
申请日：2009-07-08
申请人： Masahiko Tetsumoto , Yutaka Miyakawa , Noriaki Mizutani
发明人： Masahiko Tetsumoto , Yutaka Miyakawa , Noriaki Mizutani
IPC分类号： C22B11/10
CPC分类号： C22B1/24 , C21B13/0046 , C21B13/006 , C21B13/105 , C22B1/2406 , C22B1/242 , C22B1/245 , C22B1/248 , C22B5/10 , C22B5/16 , C22B7/02 , C22B13/025 , C22B19/30 , Y02P10/214 , Y02P10/216
摘要： An object of the present invention is to produce briquettes that have high strength even when the amounts of binder and water used are decreased as much as possible. A method for producing briquettes that achieve this object includes a step of forming primary granules by using a powder containing a metal oxide and at least one of zinc oxide, lead oxide, and titanium oxide and a step of compressing the primary granules still containing the at least one of zinc oxide, lead oxide, and titanium oxide so as to mold the primary granules into secondary granules.
摘要翻译：本发明的目的是生产即使在尽可能减少粘合剂和水的使用量的情况下也具有高强度的团块。制造实现该目的的团块的方法包括通过使用含有金属氧化物和氧化锌，氧化铅和氧化钛中的至少一种的粉末形成初级颗粒的步骤，以及将含有氧化锌，氧化铅和氧化钛中的至少一种，以将初级颗粒模塑成二次颗粒。

9. 发明申请

US20110042868A1 Process and Apparatus for Recovery of Non-Ferrous Metals from Zinc Residues 有权
标题翻译：从锌渣中回收有色金属的工艺和设备
公开(公告)号：US20110042868A1
公开(公告)日：2011-02-24
申请号：US12880693
申请日：2010-09-13
申请人： Maurits VAN CAMP , Jonathan AERTS , Benedict JANSSENS , Sven SANTEN
发明人： Maurits VAN CAMP , Jonathan AERTS , Benedict JANSSENS , Sven SANTEN
IPC分类号： C22B4/08 , C21B7/00 , C21B7/10
CPC分类号： C22B4/005 , C22B4/08 , C22B5/16 , C22B7/04 , C22B13/025 , C22B19/04 , C22B19/28 , C22B19/30 , Y02P10/214 , Y10S75/961
摘要： The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process comprises the steps of: subjecting the residue to a flash or agitated bath fuming step, thereby producing an Fe bearing slag and Zn- and Pb-bearing fumes; and extracting the Zn- and Pb-bearing fumes and valorising Zn and Pb; characterised in that CaO, SiO2 and MgO are added as a flux before or during the fuming step so as to obtain a final slag composition with: formula (I) all concentrations being expressed in wt %. The invention also relates to a single-chamber reactor for Zn-fuming equipped with one or more submerged plasma torches as heat and gas sources. [ Fe ] [ SiO 2 ] + [ CaO ] [ SiO 2 ] + [ Mg  O ] 3 > 3.5 ;   0.1
摘要翻译：本发明涉及从含锌残留物，特别是由锌制造业生产的残余物中分离和回收有色金属的方法。该方法包括以下步骤：使残余物经受闪蒸或搅拌的发烟步骤，从而产生含Fe的炉渣和含Zn和Pb的烟雾; 并提取含Zn和Pb的烟雾和加钒Zn和Pb; 其特征在于，在发烟步骤之前或期间，以CaO，SiO 2和MgO的形式加入CaO，以获得最终的炉渣组成：式（I）所有浓度均以重量％表示。本发明还涉及一种装有一个或多个浸没式等离子炬作为热源和气源的Zn发烟单室反应器。 [Fe] [SiO 2] + [CaO] [SiO 2] + [MgO] 3> 3.5; 0.1 [[CaO] [SiO 2] <1.3; 和[6] SiO 2] 22（I）

10. 发明申请

US20100288645A1 Method of Recovering Valuable Metals from IZO Scrap 有权
标题翻译：从IZO废料中回收有价值金属的方法
公开(公告)号：US20100288645A1
公开(公告)日：2010-11-18
申请号：US12863750
申请日：2008-12-09
申请人： Yuichiro Shindo , Kouichi Takemoto
发明人： Yuichiro Shindo , Kouichi Takemoto
IPC分类号： C25C1/24 , C25C1/00
CPC分类号： C25C1/16 , C22B3/045 , C22B3/44 , C22B7/006 , C22B19/30 , C22B58/00 , C25C1/22 , Y02P10/234
摘要： Provided is a method of recovering valuable metals from IZO scrap in which valuable metals are recovered as indium and zinc metals or suboxides by performing electrolysis using an insoluble electrode as an anode and an IZO scrap as a cathode. Specifically, this method enables the efficient recovery of indium and zinc from IZO scrap such as an indium-zinc oxide (IZO) sputtering target or IZO mill ends that arise during the manufacture of such a sputtering target.
摘要翻译：提供从IZO废料中回收贵重金属的方法，其中通过使用不溶性电极作为阳极和IZO废料作为阴极进行电解，将贵金属作为铟和锌金属或低氧化物回收。具体地说，该方法能够在制造这样的溅射靶时产生的IZO废料例如铟 - 氧化锌（IZO）溅射靶或IZO研磨端有效地回收铟和锌。

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