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公开(公告)号：KR1020120055350A
公开(公告)日：2012-05-31
申请号：KR1020100117044
申请日：2010-11-23
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , Y02P10/236 , C22B7/00 , C22B11/00
Abstract: PURPOSE: A method for selectively recovering gold from PCB(Printed Circuit Board) scraps is provided to prevent the production of cyanide and NO(Nitrogen Oxide) gas by using hydrochloric acid solution for collecting gold from PCB scraps. CONSTITUTION: A method for selectively recovering gold from PCB scraps is as follows. Chlorine gas(16) is produced through electrolysis and provided to a leaching tank(30). PCB scraps(1) are put into the leaching tank and copper is leached through electrolysis. Hydrochloric acid solution is injected again into the solution left after recovering the copper leaching solution and gold is leached in the hydrochloric acid solution. The gold leached solution is provided to an ion exchange resin and gold adsorbed in the ion exchange resin is eluted.
Abstract translation: 目的：提供从PCB（印刷电路板）废料中选择性回收金的方法，以通过使用盐酸溶液从PCB废料中收集金来防止产生氰化物和NO（氮氧化物）气体。 构成：从PCB废料中选择性地回收金的方法如下。 氯气（16）通过电解产生并提供给浸出罐（30）。 将PCB废料（1）放入浸出池中，铜通过电解浸出。 将盐酸溶液再次注入溶液中，然后回收铜浸出溶液，然后将金浸入盐酸溶液中。 将金浸出溶液提供给离子交换树脂，并且吸附在离子交换树脂中的金子被洗脱。
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公开(公告)号：KR100683963B1
公开(公告)日：2007-02-16
申请号：KR1020060110429
申请日：2006-11-09
Applicant: 한국지질자원연구원
Abstract: 본 발명은 불용성 은화합물을 생성하는 음이온이 함유된 용액에 은이온이 함유된 용액을 첨가하여 은이온을 불용성 은화합물로 석출시키고, 이를 전기화학적인 환원에 의해 은분말로 제조하는 방법 및 은분말 제조장치에 관한 것이다.
본 발명에 따른 은분말 제조방법은 은화합물의 직접적인 전기화학적 환원을 통해 은분말을 제조하므로, 은분말의 석출 형상 제어가 용이하며, 적절한 전압, 전류 또는 전해액에 따라 균일한 형태 및 크기로 다양하게 제조할 수 있으며, 장치가 간단하고, 제조 효율이 매우 높은 장점이 있다.
은화합물, 은분말, 전기화학, 환원, 전해액, 분산제-
公开(公告)号：KR1020060120559A
公开(公告)日：2006-11-27
申请号：KR1020060110429
申请日：2006-11-09
Applicant: 한국지질자원연구원
Abstract: A production method of silver powder by electrochemical reduction, which is capable of controlling precipitation shape of silver powder for producing silver powder with proper and uniform size and shape, and a production equipment of silver powder by the production method are provided. A production method of silver powder by electrochemical reduction comprises the step of contacting an insoluble silver compound(5) that is electrochemically active and insoluble to the electrolyte with a reduction electrode(2) within a reactor containing an electrolyte(4) and applying a constant current or constant voltage to the reduction electrode, thereby reducing the insoluble silver compound to produce silver powder. The production method comprises adding a solution containing silver ions(Ag^+) to a solution in which an insoluble silver compound contains silver ions for producing a silver compound, and precipitating the silver ions as an insoluble silver compound to produce silver powder.
Abstract translation: 提供了通过电化学还原制造银粉的方法，其能够控制银粉的沉淀形状，以制备具有适当和均匀尺寸和形状的银粉，以及通过制备方法制备银粉的生产设备。 通过电化学还原制备银粉的方法包括使含有电解质（4）的反应器内的还原电极（2）使电化学活性且不溶于电解质的不溶性银化合物（5）与电解质接触并使常数 电流或恒定电压，从而减少不溶性银化合物以产生银粉。 制造方法包括向不溶性银化合物含有银离子的溶液中添加含有银离子（Ag 2+）的溶液以制备银化合物，并将银离子沉淀为不溶性银化合物以制备银粉。
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公开(公告)号：KR1020060104091A
公开(公告)日：2006-10-09
申请号：KR1020050025950
申请日：2005-03-29
Applicant: 한국지질자원연구원
IPC: C25B1/26
CPC classification number: Y02P10/234 , C22B3/10 , C25B1/26 , C25B9/10
Abstract: The present invention relates to a precious metal leaching method by electrogenerated chlorine and its apparatus, more precisely, the electroleaching apparatus is composed of two reaction chambers at both sides (right and left) which is divided by central separation membrane; one of the reaction chamber is leaching chamber equipped with chlorine leaching-stable electrode for the electrogeneration of chlorine and stirrer for solution stirring and the other reaction chamber is reduction chamber equipped with electrode used for electrolytic recovery of some parts or entire compounds of leached precious metal, and the apparatus can additionally include separator/purifier for quick recovery of targeted precious metal, if necessary. The present invention provides a very simple leaching method and an apparatus thereof which has high leaching efficiency and enables the recovery of leached precious metal.
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公开(公告)号：KR1020060041028A
公开(公告)日：2006-05-11
申请号：KR1020040090381
申请日：2004-11-08
Applicant: 한국지질자원연구원
IPC: C25C5/02
Abstract: 본 발명은 불용성 은화합물을 생성하는 음이온이 함유된 용액에 은이온이 함유된 용액을 첨가하여 은이온을 불용성 은화합물로 석출시키고, 이를 전기화학적인 환원에 의해 은분말로 제조하는 방법 및 은분말 제조장치에 관한 것이다.
본 발명에 따른 은분말 제조방법은 은화합물의 직접적인 전기화학적 환원을 통해 은분말을 제조하므로, 은분말의 석출 형상 제어가 용이하며, 적절한 전압, 전류 또는 전해액에 따라 균일한 형태 및 크기로 다양하게 제조할 수 있으며, 장치가 간단하고, 제조 효율이 매우 높은 장점이 있다.
은화합물, 은분말, 전기화학, 환원, 전해액, 분산제-
Patent Agency Ranking
公开(公告)号：KR101685931B1
公开(公告)日：2016-12-14
申请号：KR1020160089431
申请日：2016-07-14
Applicant: 한국지질자원연구원
CPC classification number: C22B11/044 , C22B1/02 , C22B3/045 , C22B11/046 , C22B15/0065 , Y02P10/212 , Y02W30/82 , Y02W30/822
Abstract: 본발명은구리함유자원인폐휴대폰인쇄회로기판을파쇄(crushing)하여파쇄물을제조하고, 금정광분말과혼합하여혼합물을제조하는단계, 상기혼합물을가열하여산화배소하는단계, 산화배소된혼합물을가열하고용련하여슬래그와조금속으로분리하여회수하는단계, 및상기조금속을전해침출하여귀금속을전해침출잔사로농축하는단계를포함하는하는폐휴대폰인쇄회로기판을이용한귀금속농축회수방법을제공한다따라서, 금의순도가매우낮아건식제련으로금회수가어려운금정광을사용하여고순도의금을회수할수 있다. 또한구리함유자원인폐휴대폰인쇄회로기판을금정광과함께산화배소하여용융하여유가금속인구리를회수함과동시에금, 은, 백금, 팔라듐또는로듐의귀금속을매우효율적으로농축하여회수할수 있다.
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公开(公告)号：KR101600334B1
公开(公告)日：2016-03-10
申请号：KR1020140125452
申请日：2014-09-22
Applicant: 한국지질자원연구원
Inventor： 시리바스타바라지브란잔 , 김민석 , 이재천
Abstract: 본발명은용매추출에의한레늄함유용액으로부터레늄의선택적인분리방법에관한것으로, 용매추출을이용하여레늄을함유하고있는광물자원혹은 2차자원을침출하여얻어진레늄함유용액으로부터레늄을효과적으로분리할수 있으며, 용매추출에사용된용매를전부회수-순환시킬수 있어, 2차폐기물의발생량이대폭줄일수 있는친환경성을가지는레늄의선택적인분리방법이다.
Abstract translation: 本发明涉及一种通过溶剂萃取从含铼溶液中选择性分离铼的方法，其通过溶剂萃取有效地将铼与含铼矿物资源或含铼溶液浸出，从而显着降低了一代 的二次废物通过收集和循环用于溶剂萃取的全部溶剂来具有环境性能。 通过溶剂萃取选择性地将铼与含铼溶液分离的方法包括：通过向含铼溶液中加入具有阳离子金属离子萃取剂的有机溶剂并主要萃取溶液获得水相的步骤; 通过向主要提取的水相中加入具有中性金属离子提取剂的有机溶剂获得有机相的步骤，并次要提取溶液; 以及通过将碱溶液加入到二次萃取的有机相中，通过反萃取铼来分离铼的步骤。
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公开(公告)号：KR1020130060878A
公开(公告)日：2013-06-10
申请号：KR1020110127170
申请日：2011-11-30
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , C22B3/10 , B09B3/00 , C22B11/00 , C22B15/00
Abstract: PURPOSE: A method for recycling lead-free solder waste using hydrochloric acid is provided to efficiently and economically separate useful metal including tin metal from lead-free solder waste through a wet smelting process. CONSTITUTION: A method for recycling lead-free solder waste using hydrochloric acid is as follows. Solder waste is put into hydrochloric acid solution and an oxidant is supplied so that solid silver chloride is formed and precipitated by tin and the tin and copper are dissolved into ion to be mixed into the hydrochloric acid solution(10). The precipitated solid silver chloride obtained in the hydrochloric acid precipitation step and the hydrochloric acid solution in which the copper and tin are mixed are separated from each other(20,30). The copper is recovered by being separated from the hydrochloric acid solution after the solid-liquid separation step(40). An anode electrode and a cathode electrode are inserted into the hydrochloric acid solution and the tine is recovered from the hydrochloric acid solution through electrolytic withdrawal(50). [Reference numerals] (10) Hydrochloric acid precipitation step; (20) Solid-liquid separation step; (30) Silver recovery step; (40) Copper recovery step; (41) Substitution step; (42) Solid-liquid separation; (50) Tin recovery step
Abstract translation: 目的：提供使用盐酸回收无铅焊料废物的方法，通过湿法冶炼工艺有效和经济地分离包括锡金属在内的有用金属与无铅焊料废料。 构成：使用盐酸回收无铅焊料废料的方法如下。 将废弃物放入盐酸溶液中，并供给氧化剂，使得由锡形成固体氯化银并沉淀，将锡和铜溶解成离子以混合到盐酸溶液（10）中。 在盐酸沉淀步骤中得到的沉淀固体氯化银和混合有铜和锡的盐酸溶液彼此分离（20,30）。 通过在固液分离步骤（40）之后与盐酸溶液分离来回收铜。 将阳极电极和阴极电极插入盐酸溶液中，并通过电解抽出从盐酸溶液回收齿（50）。 （附图标记）（10）盐酸沉淀步骤; （20）固液分离步骤; （30）银回收步骤; （40）铜回收步骤; （41）替代步骤; （42）固液分离; （50）锡回收步骤
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公开(公告)号：KR1020120041403A
公开(公告)日：2012-05-02
申请号：KR1020100102833
申请日：2010-10-21
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/228
Abstract: PURPOSE: A method for valuable metal recovery from lead-free solder waste is provided to efficiently recover tin or silver from lead-free solder by using electrolytes including chloride ions. CONSTITUTION: A method for valuable metal recovery from lead-free solder waste comprises the steps of: preparing an anode from waste lead-free solder including tin, silver or a mixture thereof, applying current to the anode and a cathode prepared in an electrolyte including chloride ions, forming anode slime on the anode according to the reaction by the application of current, electro-depositing tin on the cathode, and recovering silver from the electro-deposited tin or anode slime.
Abstract translation: 目的：提供从无铅焊料废料中有价值回收金属的方法，通过使用包含氯离子的电解质，有效地从无铅焊料中回收锡或银。 构成：从无铅焊料废料回收有价金属的方法包括以下步骤：由废锡无铅焊料制备阳极，包括锡，银或其混合物，向阳极施加电流，并在电解液中制备阴极，包括 氯化物离子，根据通过施加电流的反应在阳极上形成阳极粘土，在阴极上沉积锡，并从电沉积的锡或阳极粘泥中回收银。
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公开(公告)号：KR1020110130295A
公开(公告)日：2011-12-05
申请号：KR1020100049870
申请日：2010-05-27
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , C22B11/06 , C22B11/042 , C25C1/20 , C25C7/02 , C25C7/06
Abstract: PURPOSE: A device for recovery of ruthenium and a method for the same are provided to reduce costs for a separate chlorine containing system and supplying device by producing hydrochloric acid gas using the electric chemistry reaction. CONSTITUTION: A device for recovery of ruthenium comprises a chlorine electrolysis production tub, a leaching tank, a cooling device, a collector and a chlorine recycle line. The chlorine electrolysis production tub comprises a cathode chamber, an anion exchange film and an anode chamber. The chlorine electrolysis production tub establishes the respective electrode in the anode chamber and cathode chamber. The electrode is composed of the insoluble conducting material which is stable in the electro chemical reaction. The cathode chamber and anode chamber comprise graphite, iridium or ruthenium coating titanium electrode. The leaching tank comprises ozonizer and pH controller. The cooling device is connected to the leaching tank. The collector collects the ruthenium oxide in the backend of the cooling device. The chlorine recycle line sends the hydrochloric acid gas, remaining in the leaching tank, to the chlorine electrolysis production tub.
Abstract translation: 目的：提供用于回收钌的装置及其方法，以通过使用电化学反应产生盐酸气体来降低单独的含氯体系和供给装置的成本。 构成：用于回收钌的装置包括氯电解生产桶，浸出罐，冷却装置，收集器和氯再循环管线。 氯电解生产桶包括阴极室，阴离子交换膜和阳极室。 氯电解生产桶在阳极室和阴极室中建立各自的电极。 电极由电化学反应稳定的不溶性导电材料构成。 阴极室和阳极室包括石墨，铱或钌涂层钛电极。 浸出池包括臭氧和pH控制器。 冷却装置连接到浸出罐。 收集器在冷却装置的后端收集氧化钌。 氯回收管线将残留在浸出槽中的盐酸气体送入氯电解生产槽。
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