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公开(公告)号：US20130011312A1
公开(公告)日：2013-01-10
申请号：US13620422
申请日：2012-09-14
IPC分类号： C22B26/10
CPC分类号： C01D7/10 , B01D53/40 , B01D53/77 , B01D2251/304 , B01D2251/606 , B01D2257/2045 , B01D2257/302 , B01D2257/504 , C01D7/00 , C01D7/126 , C01D7/24 , Y02P20/152
摘要： Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: a solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0.1 and 10 mm is dissolved in water; the resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; the first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; and a part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized. A reagent powder comprising sodium bicarbonate crystals made by such process.
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2.发明申请公开(公告)号：US20110250109A1
公开(公告)日：2011-10-13
申请号：US13139430
申请日：2009-12-22
摘要： Process for the joint production of sodium carbonate and sodium bicarbonate out of trona, comprising introducing and dissolving crushed trona ore is introduced and dissolved in a leaching tank containing a solution comprising sodium carbonate and sodium bicarbonate, saturated in sodium bicarbonate, in order to produce solid particles suspended in a production solution comprising sodium carbonate, the solid particles containing insoluble impurities and at least 65% in weight of sodium bicarbonate; separating the solid particles from the production solution containing sodium carbonate; drying and valorizing the separated solid particles; taking at least part of the production solution containing sodium carbonate out of the leaching tank in order to constitute a produced solution which is valorized; and introducing water in the leaching tank.
摘要翻译： 将包含引入和溶解的天然碱矿石的碳酸钠和碳酸氢钠联合生产的方法引入并溶解在含有碳酸氢钠和碳酸氢钠的溶液的浸出槽中，所述溶液包含在碳酸氢钠中饱和的溶液，以产生固体 悬浮在包含碳酸钠的生产溶液中的颗粒，固体颗粒含有不溶性杂质和至少65重量％的碳酸氢钠; 从含有碳酸钠的生产溶液中分离固体颗粒; 干燥和加压分离的固体颗粒; 将含有碳酸钠的生产溶液的至少一部分从浸出槽中取出以构成产生的增值溶液; 并在浸出池中引入水。
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公开(公告)号：US20100284891A1
公开(公告)日：2010-11-11
申请号：US12811663
申请日：2009-01-06
IPC分类号： C01D7/12
CPC分类号： C01D7/126 , B01D61/422 , C01D1/38 , C01D7/32
摘要： In a process to produce sodium carbonate, a first production solution comprising sodium carbonate is introduced into less basic compartments of an electrodialyser comprising alternating less basic and more basic adjacent compartments separated from each other by cationic membranes, the more basic compartments being delimited by anionic faces of bipolar membranes on one side and by the cationic membranes on the other side; a second production solution comprising sodium carbonate is introduced into the more basic compartments of the electrodialyser; a solution comprising sodium hydroxide is produced into the more basic compartments by combination of sodium ions flux sodium ions crossing the cationic membrane and hydroxyl ions flux crossing the anionic face of the bipolar membranes, and is then extracted from the electrodialyser to be used as a reaction solution; and the reaction solution is reacted with sodium bicarbonate in order to form a produced solution comprising sodium carbonate.
摘要翻译： 在生产碳酸钠的方法中，将包含碳酸钠的第一制备溶液引入电离渗析器的较少碱性室中，其包含由阳离子膜彼此分离的交替的较少碱性和更碱性的相邻隔室，所述更基本的隔室由阴离子面 双极膜在一侧和另一侧的阳离子膜; 将包含碳酸钠的第二制备溶液引入电渗析器的更基本的隔室中; 将包含氢氧化钠的溶液通过与阳离子膜交叉的钠离子通量钠离子和与双极性膜的阴离子面交叉的羟基离子通量的组合而形成到更碱性的隔室中，然后从电渗析器中提取以用作反应 解; 并将反应溶液与碳酸氢钠反应，以形成包含碳酸钠的生产溶液。
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公开(公告)号：US20090288957A1
公开(公告)日：2009-11-26
申请号：US12305444
申请日：2007-07-09
IPC分类号： C25B1/14
摘要： Process for the joint production of sodium carbonate and sodium bicarbonate out of sesquicarbonate, in which the sesquicarbonate is dissolved in water, in order to form a feed water solution comprising both sodium carbonate and sodium bicarbonate, in which at least part of the feed water solution is introduced into all the compartments of an electrodialyser and in which a sodium bicarbonate enriched solution and a sodium carbonate enriched solution are extracted from the compartments.
摘要翻译： 为了形成包含碳酸钠和碳酸氢钠两者的进料水溶液，其中将倍半碳酸酯溶于水中的碳酸氢钠和碳酸氢钠联合生产方法，其中至少部分给水溶液 被引入电渗析器的所有隔室中，并且其中从隔室中提取富含碳酸氢钠的溶液和富含碳酸钠的溶液。
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公开(公告)号：US20090260993A1
公开(公告)日：2009-10-22
申请号：US12440486
申请日：2007-09-12
申请人： Francis M. Coustry , Michel Hanse
发明人： Francis M. Coustry , Michel Hanse
IPC分类号： C25B1/22
摘要： Method for producing sodium carbonate, according to which an aqueous sodium chloride solution (5) is electrolyzed in a membrane-type cell (1) from which an aqueous sodium hydroxide solution (9) is collected, and carbonated by direct contact with carbon dioxide (15) to form a slurry of crystals of anhydrous sodium carbonate (16).
摘要翻译： 制备碳酸钠的方法，根据该方法，在收集了氢氧化钠水溶液（9）的膜型电池（1）中电解氯化钠水溶液（5），并通过与二氧化碳直接接触进行碳酸化（ 15）以形成无水碳酸钠（16）晶体的浆液。
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6.发明申请公开(公告)号：US20090291038A1
公开(公告)日：2009-11-26
申请号：US12126651
申请日：2008-05-23
CPC分类号： C01D7/10 , B01D2251/304 , B01D2251/606 , C01D7/00 , C01D7/24
摘要： Process for the joint production of sodium carbonate and sodium bicarbonate crystals, according to which: Solid powder derived from sodium sesquicarbonate, having a mean particle diameter comprised between 0,1 and 10 mm is dissolved in water; The resulting water solution is introduced into a crystallizer, wherein a first water suspension comprising sodium carbonate crystals is produced; The first water suspension is subjected to a separation, in order to produce crystals comprising sodium carbonate on the one hand, which are valorized, and a mother liquor on the other hand; Part of the mother liquor is taken out of the crystallizer and put into contact in, a gas liquid contactor, with a gas comprising carbon dioxide, in order to produce a second water suspension comprising sodium bicarbonate crystals, which are separated and valorized
摘要翻译： 用于联合生产碳酸钠和碳酸氢钠晶体的方法，其中：将平均粒径为0.1至10mm的来源于倍半碳酸钠的固体粉末溶解在水中; 将所得水溶液引入结晶器中，其中制备包含碳酸钠晶体的第一水悬浮液; 将第一水悬浮液进行分离，以便制造一方面包含加价的碳酸钠和另一方面是母液的晶体; 将一部分母液从结晶器中取出并与气液接触器与包含二氧化碳的气体接触，以便产生包含碳酸氢钠晶体的第二水悬浮液，该水悬浮液分离并加价
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7.发明授权
公开(公告)号：US5624647A
公开(公告)日：1997-04-29
申请号：US438344
申请日：1995-05-10
摘要： A process for recovering alkali values from trona ore by partially dissolving trona in a first dissolving solution to form a first feed liquor and undissolved trona. The first feed liquor is cooled and sodium carbonate decahydrate is precipitated. The sodium carbonate decahydrate is recovered from the resultant first mother liquor that is returned as the first dissolving solution. The undissolved trona is further dissolved in a second dissolving solution to form a second feed liquor. The second feed liquor is preferably carbonated to convert sodium carbonate into sodium bicarbonate, and cooled to precipitate sodium bicarbonate. The sodium bicarbonate is recovered from the resultant second mother liquor that is returned as the second dissolving solution.
摘要翻译： 通过将天然碱部分地溶解在第一溶解溶液中以形成第一进料液和未溶解的天然碱的方法从天然碱矿石中回收碱值的方法。 第一个进料液体被冷却并且十水碳酸钠沉淀。 从作为第一溶解溶液返回的所得第一母液中回收碳酸钠十水合物。 将未溶解的天然碱进一步溶解在第二溶解溶液中以形成第二进料液。 第二进料液优选碳酸化以将碳酸钠转化为碳酸氢钠，并冷却以沉淀碳酸氢钠。 从作为第二溶解溶液返回的所得第二母液中回收碳酸氢钠。
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8.发明授权Method for recovery of alkali values from trona using sequential crystallization 失效使用顺序结晶从天然碱中回收碱值的方法
公开(公告)号：US5618504A
公开(公告)日：1997-04-08
申请号：US438447
申请日：1995-05-10
摘要： A process for recovery of alkali values from trona ore comprising (a) dissolving the trona ore, (b) separating the insoluble material to obtain an alkali containing feed liquor, (c) cooling the feed liquor and crystallizing sodium bicarbonate and separating the bicarbonate crystals from the resulting mother liquor, (d) cooling the mother liquor and crystallizing sodium carbonate decahydrate and separating the decahydrate crystals from a weak liquor, and (e) treating the sodium carbonate decahydrate crystals to recover the alkali values therein.
摘要翻译： 一种从天然碱矿石回收碱值的方法，包括（a）溶解天然碱矿石，（b）分离不溶物以获得含碱的进料液，（c）冷却进料液并结晶碳酸氢钠并分离碳酸氢盐晶体 从所得母液中，（d）冷却母液并使十水碳酸钠结晶，并将十水合物晶体与弱液分离，（e）处理碳酸钠十水合物晶体以回收其中的碱值。
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公开(公告)号：US09139447B2
公开(公告)日：2015-09-22
申请号：US12305444
申请日：2007-07-09
摘要： Process for the joint production of sodium carbonate and sodium bicarbonate out of sesquicarbonate, in which the sesquicarbonate is dissolved in water, in order to form a feed water solution comprising both sodium carbonate and sodium bicarbonate, in which at least part of the feed water solution is introduced into all the compartments of an electrodialyser and in which a sodium bicarbonate enriched solution and a sodium carbonate enriched solution are extracted from the compartments.
摘要翻译： 为了形成包含碳酸钠和碳酸氢钠两者的进料水溶液，其中将倍半碳酸酯溶于水中的碳酸氢钠和碳酸氢钠联合生产方法，其中至少部分给水溶液 被引入电渗析器的所有隔室中，并且其中从隔室中提取富含碳酸氢钠的溶液和富含碳酸钠的溶液。
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10.发明授权公开(公告)号：US08784756B2
公开(公告)日：2014-07-22
申请号：US13139430
申请日：2009-12-22
IPC分类号： C01D1/32
摘要： A process for the joint production of sodium carbonate and sodium bicarbonate out of trona, comprising: introducing and dissolving crushed trona ore in a leaching tank containing a solution comprising sodium carbonate and sodium bicarbonate, saturated in sodium bicarbonate, in order to produce solid particles suspended in a production solution comprising sodium carbonate, the solid particles containing insoluble impurities and at least 65% in weight of sodium bicarbonate; separating the solid particles from the production solution containing sodium carbonate; drying and valorizing the separated solid particles; taking at least part of the production solution containing sodium carbonate out of the leaching tank in order to constitute a produced solution which is valorized; and introducing water in the leaching tank.
摘要翻译： 一种用于从天然碱中共同生产碳酸钠和碳酸氢钠的方法，包括：将压碎的天然碱矿石引入并溶解在含有碳酸钠和碳酸氢钠的溶液的浸出槽中，所述溶液包含在碳酸氢钠中饱和的溶液，以产生悬浮的固体颗粒 在包含碳酸钠的生产溶液中，固体颗粒含有不溶性杂质和至少65重量％的碳酸氢钠; 从含有碳酸钠的生产溶液中分离固体颗粒; 干燥和加压分离的固体颗粒; 将含有碳酸钠的生产溶液的至少一部分从浸出槽中取出以构成产生的增值溶液; 并在浸出池中引入水。
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