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1. 发明公开

EP3245332A1 A CONTROLLED PROCESS FOR PRECIPITATING CALCIUM CARBONATE 审中-公开
标题翻译：一种控制碳酸钙沉淀的方法
公开(公告)号：EP3245332A1
公开(公告)日：2017-11-22
申请号：EP16737905.6
申请日：2016-01-14
申请人： Imerys USA, Inc.
发明人： PAYNTER, Christopher , STOVALL, Kalena , WICKS, Douglas , BUTLER-LEE, Gavin , GOLBAYANI, Parvin , JARVIS, Nigel, Victor , PRING, Graham, M , TAYLOR, David , PEREZ, Ricardo, M.
IPC分类号： D21H17/67 , C08C1/02 , C01F11/18
CPC分类号： C01F11/181 , B01D53/501 , B01D2251/404 , B01D2251/606 , C01F5/24 , C01F5/40 , C01F11/182 , C01F11/183 , C01F11/185 , C01F11/464 , C01F11/468 , C01P2004/03 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/80 , C04B14/28 , C09C1/021 , D21H17/67 , D21H17/675
摘要： A process for treating a sulfurous fluid to form gypsum and magnesium carbonate, whereby the sulfurous fluid is scrubbed with a sequestrating agent to yield a scrubbed fluid, gypsum and magnesium sulfate. The flue gas desulfurized gypsum is isolated from the magnesium sulfate solution by filtration or centrifugation. The magnesium sulfate is reacted with a carbonate salt to produce a magnesium carbonate whereby the reaction conditions are controlled to control the properties of the magnesium carbonate produced.

2. 发明授权

EP2732866B1 METHOF FOR PRODUCING MAGNESIUM SULFATE-BASED DESICCANT 有权
标题翻译： PROCESS FOR干燥剂基于镁硫酸盐
公开(公告)号：EP2732866B1
公开(公告)日：2016-10-19
申请号：EP12815397.0
申请日：2012-07-13
申请人： Tomita Pharmaceutical Co., Ltd.
发明人： KAYAMA, Kazuhito , KONISHI, Koh , HITOMI, Masahiro , KOMETANI, Minoru , KONISHI, Masashi , KAWAMOTO, Ariumi
IPC分类号： C08K9/04 , B01J20/28 , B01J20/04 , B01J20/32 , B01D53/26 , B01D53/28 , B01J20/30 , C01F5/40
CPC分类号： B01J20/045 , B01D53/261 , B01D53/28 , B01D2253/112 , B01D2253/25 , B01D2253/304 , B01J20/28004 , B01J20/28016 , B01J20/3021 , B01J20/3204 , B01J20/3246 , B01J20/3248 , B01J20/3293 , C01F5/40 , C01P2004/51 , C01P2004/61 , C01P2006/12 , C08K9/04

3. 发明公开

EP3009407A1 WASTEWATER TREATMENT METHOD 审中-公开
标题翻译：污水处理工艺
公开(公告)号：EP3009407A1
公开(公告)日：2016-04-20
申请号：EP14810962.2
申请日：2014-05-15
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA, Hideki , OZAKI, Yoshitomo
IPC分类号： C02F1/58 , C01F5/02 , C02F1/04 , C02F1/64 , C02F1/72 , C22B3/04 , C22B3/44 , C22B23/00 , C22B21/00 , C22B26/20 , C22B26/22 , C22B47/00
CPC分类号： C02F1/5236 , C01B17/48 , C01F5/12 , C01F5/40 , C01F11/46 , C01G45/02 , C01G53/006 , C01P2002/72 , C01P2004/01 , C01P2006/80 , C01P2006/90 , C02F1/04 , C02F1/66 , C02F1/72 , C02F9/00 , C02F2101/10 , C02F2101/20 , C02F2101/206 , C02F2103/10 , Y02W10/37
摘要： Provided is a wastewater treatment process capable of selectively and efficiently separating and removing a manganese precipitate with high purity from sulfuric acid-acidic wastewater containing aluminum, magnesium, and manganese. In the wastewater treatment for a sulfuric acid-acidic wastewater containing aluminum, magnesium, and manganese, a magnesium oxide is used for part or all of the neutralizing agent to be added, the magnesium oxide is produced through the following steps (1) to (4): (1) effluent wastewater obtained by separating aluminum and manganese from sulfuric acid-acidic wastewater is concentrated, and calcium contained in the effluent wastewater is precipitated as a calcium sulfate; (2) the solution obtained in (1) is further concentrated, and magnesium is precipitated and separated as a magnesium sulfate; (3) the magnesium sulfate separated in (2) is roasted together with a reducing agent to obtain a magnesium oxide and sulfurous acid gas; and (4) the magnesium oxide obtained in (3) is washed.

4. 发明授权

EP1882679B1 Verfahren zur Granulierung von Kieserit und Kieserit enthaltenden mineralischen Düngemitteln 有权
标题翻译：一种用于镁矾含有和水镁矾矿物肥料粒化过程
公开(公告)号：EP1882679B1
公开(公告)日：2015-04-15
申请号：EP07014153.6
申请日：2007-07-19
申请人： K+S Aktiengesellschaft
发明人： Hoche, Antje , Naundorf, Wolfgang, Prof. Dr. , Stahl, Ingo, Dr. Prof.
IPC分类号： C05D5/00 , C05G3/00 , C05D9/00 , C05F1/00 , C05F11/02
CPC分类号： C05D5/00 , C01F5/40 , C05G3/0047 , C05G3/0052 , C05G3/0088 , C05D9/00 , C05F1/007 , C05F11/02

5. 发明公开

EP2796411A8 METHOD FOR PRODUCING MAGNESIUM OXIDE 有权
标题翻译：用于生产氧化镁
公开(公告)号：EP2796411A8
公开(公告)日：2014-12-24
申请号：EP12860169.7
申请日：2012-12-14
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： OHARA, Hideki , OZAKI, Yoshitomo , TAKAHASHI, Jun-ichi , YAMASHITA, Yu
IPC分类号： C01F5/12
CPC分类号： C22B23/043 , C01B17/501 , C01F5/12 , C01F5/40 , C01F11/46 , C01P2002/72 , C01P2004/03
摘要： It is an object to provide a method for producing magnesium oxide by which magnesium oxide being high in purity and low in impurity content can be produced simply and efficiently from a sulfuric acid solution containing magnesium and calcium such as waste water. In the present invention, calcium is precipitated as calcium sulfate and separated by concentrating a sulfuric acid solution containing magnesium and calcium, and magnesium is precipitated as magnesium sulfate and separated by further concentrating the solution resulting from the separation of calcium. The separated magnesium sulfate is roasted together with a reductant, so that magnesium oxide and sulfur dioxide are obtained. The resulting magnesium oxide is washed to produce magnesium oxide with high purity.

6. 发明公开

EP2435367A1 METHOD OF PRODUCING NATURALLY PURIFIED SALT PRODUCTS 有权
标题翻译：工艺生产纯化SALT天然产物
公开(公告)号：EP2435367A1
公开(公告)日：2012-04-04
申请号：EP10781133.3
申请日：2010-05-26
申请人： Cargill, Incorporated
发明人： BOLLINGER, Matthew, L. , DURCH, Nicole, M. , LEE, Robert, Sung
IPC分类号： C01F5/34
CPC分类号： C01F5/40 , C01D3/14 , C01D3/18
摘要： Methods for producing naturally purified salt products are disclosed. In one embodiment, a method of producing a naturally purified salt product such as magnesium sulfate heptahydrate from a salt mixture is disclosed. In another embodiment, a high purity salt product is produced. In another embodiment, other products that are produced include naturally purified sodium chloride and magnesium chloride.

7. 发明授权

EP1809778B1 LEACHING PROCESS IN THE PRESENCE OF HYDROCHLORIC ACID FOR THE RECOVERY OF A VALUE METAL FROM AN ORE 有权
标题翻译：浸出酸存在为了获得有价值金属从矿石
公开(公告)号：EP1809778B1
公开(公告)日：2009-07-08
申请号：EP05797276.2
申请日：2005-10-21
申请人： Anglo Operations Limited
发明人： SMIT, Jan Tjeerd , STEYL, Johann Du Toit
IPC分类号： C22B3/10
CPC分类号： C22B19/22 , C01F5/40 , C01G9/06 , C01G21/20 , C01G49/06 , C22B3/10 , C22B3/44 , C22B19/26 , C22B23/0423 , Y02P10/234
摘要： A process is described for leaching a value metal from an ore containing said value metal, the process including the steps of leaching the ore in the presence of hydrochloric acid so as to form a soluble metal-chloride salt in a leach solution; adding sulphuric acid to the leach solution; recovering a metal-sulphate salt from the leach solution; and regenerating hydrochloric acid. The ore may be an oxidic base metal ore, such as a zinc oxide ore; a lateritic nickel ore, such as a saprolitic or limonitic ore; a sulphide ore or a titanium ore. The value metal is typically selected from the group consisting of Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, platinum group metals and gold. The metal in the metal-sulphate salt may be the value metal, or may be a metal of less value than the value metal, such as magnesium. The regenerated hydrochloric acid is recycled within the leach process.

8. 发明公开

EP1954843A2 LEACHING PROCESS IN THE PRESENCE OF HYDROCHLORIC ACID FOR THE RECOVERY OF A VALUE METAL FROM AN ORE 有权
标题翻译：浸出盐酸的回收值有金属存在从矿石矿物
公开(公告)号：EP1954843A2
公开(公告)日：2008-08-13
申请号：EP06848866.7
申请日：2006-11-28
申请人： Anglo Operations Limited
发明人： STEYL, Johann Du Toit , SMIT, Jan Tjeerd
IPC分类号： C22B3/10 , C22B19/20 , C22B23/00
CPC分类号： C22B23/0423 , C01F5/40 , C22B3/10 , C22B3/44 , C22B19/22 , C22B23/0461 , Y02P10/234
摘要： ABSTRACT A process is described for leaching a value metal from an ore containing said value metal, the process including the steps of leaching the ore in the presence of hydrochloric acid so as to form a soluble metal-chloride salt in a leach solution; adding sulphuric acid and/or sulphur dioxide to the leach solution; recovering a solid metal-sulphate or metal-sulphite salt from the leach solution; regenerating hydrochloric acid; and continuously transferring at least a portion of the regenerated hydrochloric acid in solution to the vapour phase. The vapourised hydrochloric acid is then captured and returned to the leaching step. The sulphuric acid and/or sulphur dioxide may be added to the leach solution during or after the leaching step. The value metal is typically selected from the group consisting of Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, platinum group metals and gold. The metal in the metal-sulphate or sulphite salt may be the value metal, or may be a metal of less value than the value metal, such as magnesium.

9. 发明公开

EP1809778A1 LEACHING PROCESS IN THE PRESENCE OF HYDROCHLORIC ACID FOR THE RECOVERY OF A VALUE METAL FROM AN ORE 有权
标题翻译：在盐酸存在下的浸出过程用于从矿石中回收价值金属
公开(公告)号：EP1809778A1
公开(公告)日：2007-07-25
申请号：EP05797276.2
申请日：2005-10-21
申请人： Anglo Operations Limited
发明人： SMIT, Jan Tjeerd , STEYL, Johann Du Toit
IPC分类号： C22B3/10
CPC分类号： C22B19/22 , C01F5/40 , C01G9/06 , C01G21/20 , C01G49/06 , C22B3/10 , C22B3/44 , C22B19/26 , C22B23/0423 , Y02P10/234
摘要： A process is described for leaching a value metal from an ore containing said value metal, the process including the steps of leaching the ore in the presence of hydrochloric acid so as to form a soluble metal-chloride salt in a leach solution; adding sulphuric acid to the leach solution; recovering a metal-sulphate salt from the leach solution; and regenerating hydrochloric acid. The ore may be an oxidic base metal ore, such as a zinc oxide ore; a lateritic nickel ore, such as a saprolitic or limonitic ore; a sulphide ore or a titanium ore. The value metal is typically selected from the group consisting of Zn, Cu, Ti, Al, Cr, Ni, Co, Mn, Fe, Pb, Na, K, Ca, platinum group metals and gold. The metal in the metal-sulphate salt may be the value metal, or may be a metal of less value than the value metal, such as magnesium. The regenerated hydrochloric acid is recycled within the leach process.
摘要翻译：描述了从含有所述有价金属的矿石中浸出有价金属的方法，所述方法包括在盐酸存在下浸出矿石以在浸取溶液中形成可溶性金属氯化物盐的步骤; 向浸取溶液中加入硫酸; 从浸取溶液中回收金属硫酸盐; 并再生盐酸。矿石可以是氧化贱金属矿石，如氧化锌矿石; 红土镍矿，如腐泥土矿或褐铁矿矿; 硫化矿石或钛矿石。有价值的金属通常选自Zn，Cu，Ti，Al，Cr，Ni，Co，Mn，Fe，Pb，Na，K，Ca，铂族金属和金。金属硫酸盐中的金属可以是有价值的金属，或者可以是价值比金属价值低的金属，例如镁。再生盐酸在浸出过程中循环使用。

10. 发明授权

EP1187791B1 METHOD FOR NEUTRALISING AND/OR REGENERATING ACID BATHS AND PLANT THAT CARRIES OUT THIS METHOD 有权
标题翻译：中和/或再生酸浴和系统，具体的方法的方法
公开(公告)号：EP1187791B1
公开(公告)日：2005-06-29
申请号：EP00920432.2
申请日：2000-02-10
申请人： Bartolomei, Carlo Alfredo , Garcia, Fernando H. , Pieroni, Armando
发明人： GARCIA, Fernando H. , PIERONI, Armando
IPC分类号： C01B17/90
CPC分类号： C01B7/03 , C01B7/04 , C01B17/745 , C01F5/30 , C01F5/40 , C01G9/00 , C23G1/36

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