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1. 发明公开

EP4051643A1 METHODS AND COMPOSITIONS FOR REMEDIATING CYANURIC ACID IN AQUEOUS LIQUIDS 无效
公开(公告)号：EP4051643A1
公开(公告)日：2022-09-07
申请号：EP20801083.5
申请日：2020-10-14
申请人： Danisco US Inc.
发明人： AUKEMA, Kelly Gardner , DHALIWAL, Rajdeep S. , GUO, Feng , HENG, Meng Hong , HOFFMANN, Katherine , LATONE, Jacob Andrew , WACKETT, Lawrence Philip , WHITED, Gregory M.
IPC分类号： C02F3/34 , C02F1/70 , C02F101/18 , C02F103/42

3. 发明公开

EP3685914A1 ANION REMOVAL USING TWO-DIMENSIONAL MATERIAL AND APPLICATION THEREOF 审中-公开
公开(公告)号：EP3685914A1
公开(公告)日：2020-07-29
申请号：EP18814766.4
申请日：2018-12-07
申请人： INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
发明人： The designation of the inventor has not yet been filed
IPC分类号： B01J20/30 , B01J20/02 , B01J20/04 , C02F1/28 , C02F103/16 , C02F103/20 , C02F101/18
摘要： A method for preparing an anion adsorbent may be provided, which comprises the steps of: mixing at least two metal salts with each other, thereby forming a stack structure in which cationic compound layers and anionic compound layers containing anions and water of crystallization are alternately stacked on one another; performing a first heat treatment on the stack structure to expand between the cationic compound layers, thereby preparing a preliminary anion adsorbent; and performing a second heat treatment on the preliminary anion adsorbent to remove the anions and the water of crystallization from the anionic compound layers while allowing at least one of the anions to remain, thereby preparing the anion adsorbent.

4. 发明公开

EP3050853A1 Method for removing cyanide compounds from wastewater 审中-公开
标题翻译： Verfahren zur Entfernung von Cyanid-Verbindungen aus Abwasser
公开(公告)号：EP3050853A1
公开(公告)日：2016-08-03
申请号：EP15152980.7
申请日：2015-01-29
申请人： Universiteit van Amsterdam
发明人： Oulego Blanco, Paula , Shiju, Nirappurackal Raveendran , Rothenberg, Gad
IPC分类号： C02F1/72 , C02F101/18 , C02F101/20 , C02F101/38 , C02F103/16
CPC分类号： C02F1/725 , C02F1/722 , C02F2101/18 , C02F2101/203 , C02F2101/38 , C02F2103/16
摘要： The invention pertains to a method for reduction of the cyanide content of a metals-containing wastewater fraction by contacting a wastewater fraction comprising cyanide compounds and metal compounds, with a metals content of at least 100 ppm, with hydrogen peroxide and a solid catalyst comprising at least 50 wt.% of a copper salt with a solubility of less than 10 exp(-5) mol/liter (in water at 20°C, 1 atm).
It has been found that when a solid catalyst comprising at least 50 wt.% of a copper salt with a solubility of less than 10 exp(-5) mol/liter (in water at 20°C, 1 atm) is used in combination with hydrogen peroxide in the reduction of the cyanide content of a cyanide compound-containing wastewater fraction having a metal compound content of at least 100 ppm, a method is obtained which shows an efficient removal of cyanide compounds from a difficult to treat fraction.
摘要翻译：本发明涉及通过使包含氰化物化合物和金属化合物的金属含量至少为100ppm的废水部分与过氧化氢和固体催化剂接触来降低含金属废水部分的氰化物含量的方法，所述固体催化剂包括至少50重量％的溶解度小于10埃（-5）摩尔/升的铜盐（在20℃的水中，1个大气压）。已经发现，当组合使用包含至少50重量％的溶解度小于10埃（-5）摩尔/升（在20℃的水中，1个大气压）的铜盐的固体催化剂时与过氧化氢相比，含有金属化合物含量至少为100ppm的含氰化合物的废水馏分的氰化物含量降低，得到了从难处理馏分中有效除去氰化物的方法。

5. 发明公开

EP2214848A2 REMOVAL OF CYANIDE FROM AQUEOUS STREAMS 有权
标题翻译：氰化物从水流中去除
公开(公告)号：EP2214848A2
公开(公告)日：2010-08-11
申请号：EP08848663.4
申请日：2008-11-17
申请人： Maelgwyn Mineral Services Africa (Proprietary) Limited
发明人： SINGH, Adrian
IPC分类号： B09C1/02 , C22B11/08 , C02F1/28 , C02F101/18
CPC分类号： C22B11/08 , B09C1/02 , C02F1/283 , C02F1/74 , C02F2101/18 , C02F2103/10 , C02F2209/04 , C02F2209/05 , C22B3/24 , C22B7/008 , C22B15/0076 , Y02P10/234 , Y02P10/236
摘要： This invention relates to a method of removing cyanide in the form of free cyanide (cyanide ions i.e. CN') and weak acid dissociable cyanide (WAD) from an aqueous stream. WAD is cyanide complexed with metals such as Cu. The method finds particular application in removing cyanide from a tail stream from a carbon in leach (CIL) mining operation. The method of the invention is carried out by contacting an aqueous stream containing cyanide with carbon, under conditions wherein the Eh (oxygen reduction potential (ORP) measured in mV) of the aqueous stream is O or above. Advantageously the pH of the solution is buffered to from 7 - 9.

6. 发明授权

EP3724134B1 METHOD FOR THE TREATMENT OF WASTEWATERS 有权
公开(公告)号：EP3724134B1
公开(公告)日：2024-08-14
申请号：EP18834037.6
申请日：2018-12-13
IPC分类号： C02F1/66 , C02F1/76 , C02F101/18 , C02F101/20 , C02F103/18
CPC分类号： C02F1/66 , C02F1/76 , C02F2101/1820130101 , C02F2101/2020130101 , C02F2103/1820130101 , C02F2209/0420130101 , C02F2209/0620130101

7. 发明公开

EP3860954A1 VERWENDUNG VON EISENOXID-PARTIKELN IN ABWAESSERN ZUR ELIMINIERUNG VON KONTAMINATIONEN 审中-公开
公开(公告)号：EP3860954A1
公开(公告)日：2021-08-11
申请号：EP19831976.6
申请日：2019-12-02
申请人： Universität Duisburg-Essen
发明人： MECKENSTOCK, Rainer , MOHAMMADIAN, Sadjad , KROK, Beate
IPC分类号： C02F1/28 , B01J20/02 , B01J20/24 , B01J20/32 , C02F103/10 , C02F103/16 , C02F101/14 , C02F101/18 , C02F101/20

8. 发明公开

EP3366650A1 PROCEDURE AND SYSTEM FOR THE EXTRACTION OF ISOCYANURIC ACID IN SOLUTION 审中-公开
公开(公告)号：EP3366650A1
公开(公告)日：2018-08-29
申请号：EP18158364.2
申请日：2018-02-23
申请人： Diasa Industrial, S.A.
发明人： MACÍAS GÁLLEGO, CARLOS
IPC分类号： C02F1/28 , C02F1/68 , C02F101/34 , C02F101/38 , C02F103/42 , C07D251/32 , C02F101/18
CPC分类号： C07D251/32 , B01J20/20 , B01J20/3416 , B01J20/3475 , C02F1/001 , C02F1/281 , C02F1/283 , C02F1/683 , C02F2001/5218 , C02F2101/18 , C02F2101/32 , C02F2101/34 , C02F2101/38 , C02F2103/42 , C02F2303/16
摘要： A procedure and a system for the extraction of isocyanuric acid is disclosed. According to the invention, the water containing isocyanuric acid is passed through a bed with an adsorbent material, the bed regeneration is carried out by using a liquid regeneration medium, the liquid regeneration medium that contains isocyanuric acid in solution is collected, its recovery is carried out by adding a solid complexing substance, the suspension obtained is passed through a filtering medium and isocyanuric acid is recovered and the liquid extraction medium is regenerated. The system comprises an adsorption column, a deposit of regenerating substance, a filtering medium, a dosage tank to dose the regenerating substance, a compressor, a drive pump and a valves system to configure the equipment according to the phase of the cycle in which it has to operate.

9. 发明授权

EP2559667B1 METHOD AND SYSTEM FOR THE TREATMENT OF WASTEWATER CONTAINING PERSISTENT SUBSTANCES 有权
公开(公告)号：EP2559667B1
公开(公告)日：2018-08-08
申请号：EP11759612.2
申请日：2011-03-25
申请人： Chiyoda Corporation
发明人： KAWAMURA, Kazushige , OGI, Satoshi , SHINOHARA, Masayo
IPC分类号： B01D61/02 , C02F1/20 , C02F1/44 , C02F1/52 , C02F1/58 , C02F1/66 , C02F1/70 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F9/00 , C02F101/10 , C02F101/14 , C02F101/16 , C02F101/18 , C02F101/30 , C02F103/18
CPC分类号： C02F9/00 , B01D61/025 , B01D61/04 , B01D2311/04 , B01D2311/103 , B01D2311/12 , B01D2311/18 , B01D2311/2626 , B01D2311/2634 , B01D2311/2642 , B01D2311/2665 , B01D2311/2688 , B01D2315/06 , C02F1/20 , C02F1/5236 , C02F1/66 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F2001/5218 , C02F2101/101 , C02F2101/106 , C02F2101/14 , C02F2101/16 , C02F2101/18 , C02F2101/30 , C02F2103/18 , Y02W10/15 , B01D2311/2661
摘要： Disclosed herein are a treatment method and a treatment system which are capable of inexpensively, efficiently, and safely treating wastewater discharged from a gasification plant in large amounts and containing two or more persistent substances. The method for treating wastewater discharged by wet-cleaning of gas obtained by partial oxidation of fossil fuel includes: a free cyanide removal step 2 in which free cyanides contained in the wastewater are removed by acidifying and aerating the wastewater; a biological treatment step 3 in which the wastewater that has been treated in the free cyanide removal step 2 is biologically treated; and a decomposition treatment step 4 in which COD components contained in the wastewater that has been treated in the biological treatment step 3 are decomposed. The decomposition treatment step 4 is preferably performed by an advanced oxidation treatment means, and may include the step of crystallizing calcium sulfate by adding a calcium-based alkaline agent to the wastewater.

10. 发明授权

EP2471749B1 BIOTREATMENT METHOD 有权
标题翻译： BIOBEHANDLUNGSVERFAHREN
公开(公告)号：EP2471749B1
公开(公告)日：2016-05-18
申请号：EP10811954.6
申请日：2010-08-26
申请人： Kansai Coke And Chemicals Co., Ltd. , Kobelco Eco-solutions Co., Ltd.
发明人： MATSUOKA, Keiichi , INUKAI, Masanori , INAMASU, Hironobu , YAMASHITA, Tetsuo , AKASHI, Akira
IPC分类号： C02F3/12 , C02F3/00 , C02F3/34 , C02F101/10 , C02F101/16 , C02F101/18 , C02F101/34 , C02F101/38 , C02F103/18
CPC分类号： C02F3/12 , C02F3/006 , C02F3/341 , C02F2101/101 , C02F2101/16 , C02F2101/18 , C02F2101/345 , C02F2101/38 , C02F2101/40 , C02F2103/18 , C02F2209/08 , C02F2209/36 , Y02W10/15

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