Patent

  No. Patent Name Application Date. Application No. RegistrationDate
Domestic registration 1 Method for recovery of ruthenium from waste scrap containing ruthenium 2009/06/05 10-2009-0050033 2011/11/29
2 How to recover platinum group elements 2009/09/15 10-2009-0087187 2012/02/02
3 A method for concentrating ruthenium using nitric acid leaching from waste scrap containing ruthenium 2011/08/24 10-2011-0084562 2012/06/05
4 A method for concentrating ruthenium using nitric acid leaching from waste scrap containing ruthenium 2009/06/05 10-2009-0050034 2012/06/05
5 Preparation of ruthenium powder by liquid reduction 2010/09/30 10-2010-0095265 2012/11/19
6 Method for preparing ruthenium powder by hydrogen reduction method 2011/06/09 10-2011-0055431 2013/08/21
7 Method of manufacturing potassium cyanide solution using air bubbling 2012/02/02 10-2012-0010932 2013/08/23
8 Method for separating and recovering tin from waste ITO 2011/10/18 10-2011-0106569 2013/07/03
9 Of producing ruthenium trichloride from metal ruthenium metal and oxide scrap 2011/05/25 10-2011-0049428 2013/11/26
10 A cyanide metal solution production apparatus having excellent leaching efficiency and a method forproducing cyanide metal using the same 2012/02/02 10-2012-0010933 2014/01/27
11 Process for the preparation of high purity nickel sulfate using continuous cooling crystallization 2012/02/02 10-2012-0010931 2014/01/27
12 Method for producing high purity ruthenium powder by liquid reduction 2012/02/02 10-2012-0010930 2014/02/04
13 Method for recovery of nitric acid and valuable metals from waste solder solution 2014/04/21 10-2014-0047455 2014/09/05
14 Method for separating and recovering silver and tin from anode slime 2014/03/31 10-2014-0037767 2015/01/05
15 Method for producing metal compound by direct electrolytic synthesis method using cation exchange membrane 2013/04/03 10-2013-0036303 2015/05/13
16 Method for selectively recovering tin from a nitric acid-based tin-containing waste liquid 2014/06/13 10-2014-0071990 2015/06/02
17 From a remanufacturing solution of a hydrogen-desulfurized spent catalyst containing molybdenum and vanadium, which are valuable metals, Separation and recovery method 2013/06/28 10-2013-0075021 2015/08/04
18 Dry Reduction System of Tin Waste by Rotary Reducing Furnace 2016/04/18 10-2016-0046792 2016/12/21
19 Anode casting system for tin electrolytic refining through pretreatment and anode casting method using the same 2016/04/18 10-2016-0046791 2017/02/02
20 Granule manufacturing apparatus and manufacturing method 2016/11/25 10-2016-0158329 2017/03/10
21 A method for producing coarse grained sludge from low-grade sludge 2016/11/25 10-2016-0158311 2017/03/13
22 A method for producing coarse grained sludge from low-grade sludge Manufacturing method of low-grade copper sludge briquettes, the briquettes manufactured thereby and the manufacturing apparatus 2016/11/25 10-2016-0158303 2018/08/08
23 Negative electrode compacting apparatus for tin electrolytic refining and method for compacting negative electrode for tin electrolytic refining using the same 2016/11/17 10-2016-0153205 2017/08/08
Overseas Application 25 Method for separating and recovering valuable metals from a remanufacturing solution of a vanadium-containing depleted catalyst 2013/10/04 PCT/KR2013/008876  
26 Method for separation and recovery of silver and tin from anode slime 2014/04/30 PCT/KR2014/003892  
27 A method for producing coarse grained sludge from low-grade slud 2017/11/22 15/820,992