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公开(公告)号：EP1140701B1
公开(公告)日：2003-04-02
申请号：EP99972608.6
申请日：1999-11-23
摘要： The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m3, said process comprising: providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/or solid double salts at least comprising one of sodium carbonate and sodium bicarbonate, in a mixture containing water and an organic, water miscible or partly water miscible solvent, which solvent influences the transition temperature below which sodium carbonate monohydrate is stable, whereby the type and the amount of solvent is selected in such a way that the said transition temperature is below the boiling point of the said mixture of water and an organic, water miscible or partly water miscible solvent, in case sodium bicarbonate is present, converting the bicarbonate into carbonate, crystallising sodium carbonate anhydrate from said mixture at a temperature above the said transition temperature and below the said boiling point, and recovering the sodium carbonate anhydrate.
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公开(公告)号：EP2303432A4
公开(公告)日：2012-03-21
申请号：EP09767848
申请日：2009-06-19
发明人： KEITH DAVID , MAHMOUDKHANI MARYAM
IPC分类号： B01D53/78 , C01B32/50 , B01D53/14 , B01D53/62 , B01D53/96 , C01B32/60 , C01D7/37 , G06Q50/00
CPC分类号： B01D53/62 , B01D53/77 , B01D53/78 , B01D53/96 , B01D2251/304 , B01D2251/604 , B01D2257/504 , C01D1/04 , C01D7/07 , C01D7/37 , Y02C10/04 , Y02C10/06 , Y02P20/152
摘要： A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.
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3.发明公开Process for the production of sodium carbonate anhydrate 审中-公开Herstellungsverfahrenfürwasserfreies Natriumkarbonat（苏打）
公开(公告)号：EP1004546A1
公开(公告)日：2000-05-31
申请号：EP98203963.8
申请日：1998-11-24
摘要： The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m 3 , said process comprising:
providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/or solid double salts at least comprising one of sodium carbonate and sodium bicarbonate, in a mixture containing water and an organic, water miscible or partly water miscible solvent, which solvent influences the transition temperature below which sodium carbonate monohydrate is stable, whereby the type and the amount of solvent is selected in such way that the said transition temperature is below the boiling point of the said mixture of water and an organic, water miscible or partly water miscible solvent,
in case sodium bicarbonate is present, converting the bicarbonate into carbonate,
crystallising sodium carbonate anhydrate from said mixture at a temperature above the said transition temperature and below the said boiling point, and
recovering the sodium carbonate anhydrate.摘要翻译： 本发明涉及一种生产体积密度至少为800kg / m 3的无水碳酸钠的方法，所述方法包括：提供固体碳酸钠和/或固体碳酸氢钠的悬浮液和/或 至少包含碳酸钠和碳酸氢钠之一的固体双重盐，在含有水和有机，水混溶或部分水混溶性溶剂的混合物中，该溶剂影响低于该转化温度的碳酸钠一水合物是稳定的，因此该类型和 选择溶剂的量使得所述转变温度低于所述水混合物的沸点和有机的，水混溶的或部分水混溶的溶剂，以防碳酸氢钠存在，将碳酸氢盐转化成碳酸盐，结晶 在高于所述转变温度并低于所述沸点的温度下从所述混合物中加入碳酸钠无水物质并回收 加入碳酸钠无水物。 小号
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4.发明公开Procédé de fabrication de carbonate de sodium anhydre dense et carbonate de sodium anhydre dense obtenu par ce procédé 失效一种用于生产致密无水碳酸钠，并根据此方法过程中产生的致密无水碳酸钠。
公开(公告)号：EP0191512A1
公开(公告)日：1986-08-20
申请号：EP86200082.5
申请日：1986-01-20
发明人： Ninane, Léon , Breton, Claude
IPC分类号： C01D7/37
CPC分类号： C01D7/37
摘要： On ajoute du carbonate de sodium anhydre léger à une solution aqueuse saturée de carbonate de sodium dans un domaine de températures supérieures à la température de transition du carbonate de sodium monohydraté en carbonate de sodium anhydre et on soumet la suspension aqueuse résultante à un traitement de mûrissage dans ce domaine de températures.
摘要翻译： 1.一种用于制造致密无水碳酸钠，雅丁处理加到轻质无水碳酸钠（2）被添加到在wässrige碳酸钠溶液（6），将所得混合物（1）的温度范围内以上钠的转变温度范围内处理 碳酸盐一水合物无水碳酸钠，在没被使用的碳酸饱和wässrige钠溶液（6），其特征，添加轻质无水碳酸钠（2）至所述溶液是在上述温度范围内进行，将所得wässrige悬浮液是 经受该温度范围内的熟化处理。
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公开(公告)号：EP2303432A2
公开(公告)日：2011-04-06
申请号：EP09767848.6
申请日：2009-06-19
发明人： KEITH, David , MAHMOUDKHANI, Maryam
CPC分类号： B01D53/62 , B01D53/77 , B01D53/78 , B01D53/96 , B01D2251/304 , B01D2251/604 , B01D2257/504 , C01D1/04 , C01D7/07 , C01D7/37 , Y02C10/04 , Y02C10/06 , Y02P20/152
摘要： A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.
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公开(公告)号：EP1042226B1
公开(公告)日：2002-04-10
申请号：EP98966423.0
申请日：1998-12-22
发明人： MEIJER, Johannes, Albertus, Maria , GEERTMAN, Robert, Michael , OOSTERHOF, Harald , WITKAMP, Geert-Jan , VAN ROSMALEN, Gerda, MAria
摘要： A process is presented in which anhydrous soda is crystallized and worked up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m . The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atomspheric pressure in the presence of water without the monohydrate of soda being formed.
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公开(公告)号：EP1013607A1
公开(公告)日：2000-06-28
申请号：EP98203961.2
申请日：1998-11-24
摘要： A process is presented in which anhydrous soda is crystallized and worked-up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m 3 . The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atmospheric pressure in the presence of water without the monohydrate of soda being formed.
摘要翻译： 提出了一种方法，其中无水苏打结晶并处理以产生体积密度为1300至1600kg / m 3的无水苏打晶体。 该方法的特征在于使用允许在大气压下在水存在下形成和处理晶体的溶剂，而不形成苏打的一水合物。
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公开(公告)号：EP1140701A1
公开(公告)日：2001-10-10
申请号：EP99972608.6
申请日：1999-11-23
摘要： The invention is directed to a process for the production of sodium carbonate-anhydrate having a bulk density of at least 800 kg/m3, said process comprising: providing a suspension of solid sodium carbonate and/or solid sodium bicarbonate and/or solid double salts at least comprising one of sodium carbonate and sodium bicarbonate, in a mixture containing water and an organic, water miscible or partly water miscible solvent, which solvent influences the transition temperature below which sodium carbonate monohydrate is stable, whereby the type and the amount of solvent is selected in such a way that the said transition temperature is below the boiling point of the said mixture of water and an organic, water miscible or partly water miscible solvent, in case sodium bicarbonate is present, converting the bicarbonate into carbonate, crystallising sodium carbonate anhydrate from said mixture at a temperature above the said transition temperature and below the said boiling point, and recovering the sodium carbonate anhydrate.
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公开(公告)号：EP1042226A1
公开(公告)日：2000-10-11
申请号：EP98966423.0
申请日：1998-12-22
发明人： MEIJER, Johannes, Albertus, Maria , GEERTMAN, Robert, Michael , OOSTERHOF, Harald , WITKAMP, Geert-Jan , VAN ROSMALEN, Gerda, MAria
摘要： A process is presented in which anhydrous soda is crystallized and worked up to produce anhydrous soda crystals with a bulk density from 1300 to 1600 kg/m3. The process is characterized in that a solvent is used that allows the crystals to be formed and handled at atomspheric pressure in the presence of water without the monohydrate of soda being formed.
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10.发明公开Process for production of dense soda ash from soda ash fines 失效一种用于从产生Natriumcarbonatfeinpartikeln致密碳酸钠过程
公开(公告)号：EP0742175A3
公开(公告)日：1998-01-07
申请号：EP96201222.5
申请日：1996-05-02
IPC分类号： C01D7/37
摘要： This invention provides a method for the production of dense soda ash by reacting sodium carbonate decahydrate with a light soda ash or soda ash fines at an elevated temperature to produce sodium carbonate monohydrate crystals, and drying the sodium carbonate monohydrate to produce dense soda ash.
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