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1. 发明公开

EP2061722A1 PROCESS FOR PRODUCING AMMONIA AND SULFURIC ACID FROM A STREAM COMPRISING AMMONIUM SULFATE 审中-公开
标题翻译：工艺生产氨和硫酸从硫酸铵含电源
公开(公告)号：EP2061722A1
公开(公告)日：2009-05-27
申请号：EP07800568.3
申请日：2007-08-30
申请人： Iogen Energy Corporation
发明人： CURREN, Meredith , FOODY, Brian , TOLAN, Jeffrey S.
IPC分类号： C01C1/02 , C01B17/69 , C01B17/90 , C01C1/246 , C12P7/10 , D21C3/02
CPC分类号： C01B17/745 , C01C1/028 , D21C3/04 , D21C11/0007 , Y02E50/16
摘要： A process for producing ammonia and sulfuric acid from a stream comprising ammonium sulfate is provided. The process comprises the steps of heating the stream to produce ammonia and a decomposition product comprising one or more than one of a bisulfate salt, a pyrosulfate salt, or a combination thereof. The ammonia produced is recovered, and water is added to the decomposition product to produce a stream comprising the decomposition product. The stream comprising the decomposition product is processed by acid retardation to obtain a sulfuric acid stream and a stream comprising one or more than one sulfate salt.

2. 发明公开

EP1165439A1 AMMONIA RECOVERY 审中-公开
标题翻译：回收氨
公开(公告)号：EP1165439A1
公开(公告)日：2002-01-02
申请号：EP00902491.0
申请日：2000-01-12
申请人： Western Minerals Technology Pty Ltd.
发明人： JOHNSON, Gary, Donald , ZHUANG, Yan
IPC分类号： C01C1/02
CPC分类号： C01F11/46 , C01C1/028
摘要： A process for the recovery of ammonia from an ammonia sulphate solution, the process comprising the method steps of: combining ammonium sulphate solution and quicklime (CaO) in a milling means to provide a reaction slurry; and running the milling means whereby the milling action of thereof acts to break up any gypsum precipitate as it forms in the reaction slurry or milling means.

3. 发明授权

EP2739377B1 CHILLED AMMONIA BASED CO2 CAPTURE SYSTEM WITH AMMONIA RECOVERY AND PROCESSES OF USE 有权转让
标题翻译：与氨回收及其使用方法基于冷冻氨的CO2捕获系统
公开(公告)号：EP2739377B1
公开(公告)日：2016-11-02
申请号：EP12738667.0
申请日：2012-06-29
申请人： General Electric Technology GmbH
发明人： MURASKIN, David J. , DUBE, Sanjay K.
IPC分类号： C01C1/02 , C01C1/10 , B01D53/14 , B01D53/50 , B01D53/62 , C01F11/46 , C01D1/20
CPC分类号： C01C1/028 , B01D53/1475 , B01D53/501 , B01D53/502 , B01D53/62 , B01D53/75 , B01D53/8625 , B01D2251/2062 , B01D2251/404 , B01D2252/102 , C01C1/10 , C01D1/20 , C01F11/464 , Y02C10/04 , Y02C10/06 , Y02P20/152

4. 发明公开

EP1094985A1 METHOD OF PROCUCING POTASSIUM SULFATE 审中-公开
标题翻译：工艺硫酸钾的
公开(公告)号：EP1094985A1
公开(公告)日：2001-05-02
申请号：EP99957051.8
申请日：1999-06-15
申请人： Airborne Industrial Minerals Inc.
发明人： PHINNEY, Robin
IPC分类号： C01D5/08 , C01F11/18 , C01C1/02 , C01F11/46
CPC分类号： C01F11/18 , C01C1/028 , C01D5/08
摘要： A process for the production of potassium sulfate using ammonium sulfate and potassium chloride by precipitation in the absence of evaporation. The process comprises several precipitation and solid/liquid separation steps. In the first reaction steps a double salt is formed, which is converted in further steps to potassium sulfate.

5. 发明公开

EP0577019A1 Verfahren zur thermischen Spaltung von Ammoniumsulfat in Ammoniak und Ammoniumhydrogensulfat 失效
标题翻译：阿法尼亚克和氨基氢硫酸铵中的氟化铵。
公开(公告)号：EP0577019A1
公开(公告)日：1994-01-05
申请号：EP93110172.9
申请日：1993-06-25
申请人： BASF Aktiengesellschaft
发明人： Fuchs, Hugo, Dr. , Hoppe, Klaus-Dieter, Dr. , Leutner, Bernd, Dr. , Simon, Joachim, Dr.
IPC分类号： C01C1/24 , C01C1/02 , C22C37/10
CPC分类号： B01J19/02 , B01J2219/0277 , C01C1/028 , C01C1/246
摘要： Verfahren zur thermischen Spaltung von Ammoniumsulfat in Ammoniak und Ammoniumhydrogensulfat im Temperaturbereich von 300 bis 450°C, wobei als Reaktor-Werkstoff ganz oder überwiegend Silicium-Eisen-Guß oder Silicium-Eisen-Guß-Legierungen eingesetzt werden.
摘要翻译：硫酸铵在300至450℃的温度范围内热分解（解离）为氨和硫酸氢铵的方法，所用的反应器材料仅为或主要为硅铸铁或硅铸铁合金。

6. 发明公开

EP3100804A1 MANUFACTURING METHOD FOR NICKEL POWDER 审中-公开
标题翻译： HERSTELLUNGSVERFAHRENFÜR尼克尔
公开(公告)号：EP3100804A1
公开(公告)日：2016-12-07
申请号：EP15743246.9
申请日：2015-01-27
申请人： Kochi University, National University Corporation , Sumitomo Metal Mining Co., Ltd.
发明人： YANAGISAWA Kazumichi , Zhang Junhao , HEGURI Shin-ichi , OHARA Hideki , IKEDA Osamu , YONEYAMA Tomoaki , KUDO Yohei , OZAKI Yoshitomo
IPC分类号： B22F9/26 , B22F3/10 , B22F9/24
CPC分类号： B22F3/10 , B22F1/0003 , B22F9/24 , B22F9/26 , B22F2009/245 , B22F2301/15 , B22F2998/10 , B22F2999/00 , C01C1/028 , C01C1/244 , C22B3/0005 , C22B23/0407 , C22B23/0461 , C22B23/0476 , Y02P10/234 , B22F2201/013 , B22F3/02
摘要： Provided is a production method for producing coarse particles of high purity nickel powder from a nickel ammine sulfate complex solution using fine nickel powder and using industrially inexpensive hydrogen gas. The method for producing nickel powder from a nickel ammine sulfate complex solution comprises the following treatment steps of: (1) a seed crystal production step of mixing a nickel sulfate solution and hydrazine to produce nickel powder having an average particle size of 0.1 to 5 µm serving as seed crystals; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to the nickel ammine sulfate complex solution to form a mixed slurry; (3) a reduction step of blowing hydrogen gas into the mixed slurry obtained in the seed crystal addition step to form a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of subjecting the reduced slurry obtained in the reduction step to solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder.
摘要翻译：本发明提供使用细镍粉和使用工业上便宜的氢气从硫酸镍配合物溶液中制造高纯镍粉末的粗颗粒的制造方法。从硫酸镍络合物溶液制备镍粉的方法包括以下处理步骤：（1）将硫酸镍溶液和肼混合以制备平均粒度为0.1至5μm的镍粉的晶种生产步骤作为晶种; （2）将在步骤（1）中获得的镍粉末作为晶种添加到硫酸镍络合物溶液中以形成混合浆料的晶种添加步骤; （3）在晶种添加工序中得到的混合浆料中吹入氢气的还原工序，形成含有通过在上述混合浆料中析出镍成分而形成的镍粉末的还原浆料; 和（4）将在还原步骤中获得的还原浆料进行固液分离的生长步骤，以分离和回收作为固相成分的镍粉末，然后将氢气吹入通过加入硫酸镍络合物对回收的镍粉的溶液进行镍粉生长以形成高纯镍粉。

7. 发明授权

EP1444166B1 CHEMICAL AND THERMAL DECOMPOSITION OF AMMONIUM SULPHATE INTO AMMONIA AND SULPHURIC ACID 有权
标题翻译：化学及氨和硫酸硫酸铵热分解
公开(公告)号：EP1444166B1
公开(公告)日：2007-09-05
申请号：EP02763122.5
申请日：2002-09-26
申请人： Silica Tech ANS
发明人： HANSEN, Tord
IPC分类号： C01C1/02 , C01B17/90 , C01C1/242
CPC分类号： C01B17/745 , C01C1/028
摘要： A method is described for manufacturing ammonia and sulphuric acid by decomposition of ammonium sulphate by a chemical and thermal handling process. The method concerns mixing of ammonium sulphate with concentrated sulphuric acid, where the mixture is heated to a temperature above 235 DEG C, whereby ammonium sulphate is melted, and thereafter by heating the mixture to above 280 DEG C but below the boiling point of concentrated sulphuric acid. It is hereby achieved to decompose ammonium sulphate into ammonia gas and sulphuric acid liquid simultaneously, where the produced sulphuric acid during the reaction time is mixed ideally with the concentrated sulphuric acid from the initial basis mixture.

8. 发明公开

EP1064227A1 VERFAHREN ZUR AUFARBEITUNG VON DÜNNSÄURE AUS DER TIO2-HERSTELLUNG 有权
标题翻译：一种用于处理稀酸产量从TIO2
公开(公告)号：EP1064227A1
公开(公告)日：2001-01-03
申请号：EP99913263.2
申请日：1999-03-17
申请人： Bayer Aktiengesellschaft
发明人： AUER, Gerhard , LAILACH, Günter , MEISEN, Ulrich , SCHUY, Werner
IPC分类号： C01G49/08
CPC分类号： C01C1/028 , C01F11/46 , C01G49/06 , C01P2006/12 , C01P2006/42 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C04B11/262
摘要： The invention relates to a method for producing gypsum and an iron oxide pigment from the waste acid resulting from the production of titanium dioxide according to the sulfate process. The invention is characterized in that in an initial step the waste acid is partially neutralized using a calcium compound, resulting in the precipitation and possibly direct separation of gypsum. The remaining solution is neutralized further in a second step, with precipitation of a precipitate containing Ti, Al, Cr, V and possibly Fe(III). From the iron sulfate-containing solution obtained after separation of the solid, an iron oxide pigment is produced in a third step by addition of alkaline compounds and possibly ammonia and an oxidizing agent. By adding CaO and/or Ca(OH)2 ammonia is released from the (NH4)2SO4-containing solution obtained after separation of the iron oxide pigment.

9. 发明公开

EP0307869A1 Process for producing ammonia and sulfur dioxide 失效
标题翻译： Verfahren zur Herstellung von Ammoniak und Schwefeldioxid。
公开(公告)号：EP0307869A1
公开(公告)日：1989-03-22
申请号：EP88114959.5
申请日：1988-09-13
申请人： KURARAY Co. LTD. , JGC Corporation
发明人： Takenouchi, Youji , Nishiguchi, Katsuhiko , Abe, Kunio Dai-3 Block No. 16
IPC分类号： C01B17/50 , C01B17/60 , C01C1/02
CPC分类号： C01C1/028 , C01B17/504 , H01L2224/48091 , H01L2924/00014
摘要： A process for producing NH₃ and SO₂ from ammonium sulfate, which comprises

(i) reacting ammonium sulfate with a metal oxide or hydroxide at a temperature of not more than 200 °C to form NH₃, water and a metal sulfate and recovering NH₃,
(ii) decomposing the metal sulfate in the presence of a reducing agent to form a metal oxide and SO₂ and recovering SO₂, and
(iii) recycling the metal oxide to step (i) as such or after it is converted to a metal hydroxide.
摘要翻译：一种从硫酸铵生产NH 3和SO 2的方法，其包括（i）在不超过200℃的温度下使硫酸铵与金属氧化物或氢氧化物反应形成NH 3，水和金属硫酸盐并回收NH 3（ii ）在还原剂的存在下分解金属硫酸盐以形成金属氧化物和SO 2并回收SO 2，以及（iii）依次将金属氧化物再循环到步骤（i）中，或者在将其转化为金属氢氧化物之后。 ð

10. 发明公开

EP3100804A4 MANUFACTURING METHOD FOR NICKEL POWDER 审中-公开
公开(公告)号：EP3100804A4
公开(公告)日：2018-01-03
申请号：EP15743246
申请日：2015-01-27
申请人： KOCHI UNIV NATIONAL UNIV CORPORATION , SUMITOMO METAL MINING CO
发明人： YANAGISAWA KAZUMICHI , ZHANG JUNHAO , HEGURI SHIN-ICHI , OHARA HIDEKI , IKEDA OSAMU , YONEYAMA TOMOAKI , KUDO YOHEI , OZAKI YOSHITOMO
IPC分类号： B22F9/26 , B22F3/10 , B22F9/24 , C22B3/00 , C22B3/26 , C22B23/00
CPC分类号： B22F3/10 , B22F1/0003 , B22F9/24 , B22F9/26 , B22F2009/245 , B22F2301/15 , B22F2998/10 , B22F2999/00 , C01C1/028 , C01C1/244 , C22B3/0005 , C22B23/0407 , C22B23/0461 , C22B23/0476 , B22F2201/013 , B22F3/02
摘要： Provided is a production method for producing coarse particles of high purity nickel powder from a nickel ammine sulfate complex solution using fine nickel powder and using industrially inexpensive hydrogen gas. The method for producing nickel powder from a nickel ammine sulfate complex solution comprises the following treatment steps of: (1) a seed crystal production step of mixing a nickel sulfate solution and hydrazine to produce nickel powder having an average particle size of 0.1 to 5 µm serving as seed crystals; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to the nickel ammine sulfate complex solution to form a mixed slurry; (3) a reduction step of blowing hydrogen gas into the mixed slurry obtained in the seed crystal addition step to form a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of subjecting the reduced slurry obtained in the reduction step to solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder.

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