公开(公告)号：US20180169567A1

公开(公告)日：2018-06-21

申请号：US15739350

申请日：2016-07-01

申请人： SOLVAY SA

发明人： Eric VANDERVORST ,  David Jean Lucien SAVARY ,  Gérard DUPONT ,  Hugo WALRAVENS ,  Eric Pierre DUBOIS ,  Jean-Paul COQUEREL ,  Perrine DAVOINE ,  Karine CAVALIER ,  Ines HURTADO DOMINGEZ ,  Salvador ASENSIO

IPC分类号： B01D53/04 ,  B01D53/06 ,  C01D7/18

CPC分类号： B01D53/0462 ,  B01D53/06 ,  B01D2257/504 ,  B01D2259/40005 ,  C01D7/18 ,  Y02C10/08 ,  Y02P20/152

摘要： Process wherein a low CO2 content process gas generated by an ammonia-soda process unit or a refined sodium bicarbonate unit is enriched by using a Temperature Swing Adsorption CO2 concentration module into a CO2 enriched gas whose CO2 content is increased by at least +10% by volume on dry gas basis relative to the process gas, and which is subsequently recycled to the ammonia-soda process unit or optionally to the refined sodium bicarbonate unit, in order: to produce sodium carbonate, or sodium bicarbonate, or to carbonate at least part of effluent from the unit for producing sodium carbonate or bicarbonate. The TSA CO2 concentration module comprises a stator and a rotor connected to the stator and rotatable relatively to the stator about a rotational axis, the rotor comprising a plurality of sectors, each sector containing a separation device to separate at least part of the CO2 from the process gas which is led into the separation device, and each sector being fluidically connected with at least one rotary active valve.

公开(公告)号：US09469547B2

公开(公告)日：2016-10-18

申请号：US14157051

申请日：2014-01-16

申请人： ALSTOM Technology Ltd

发明人： Peter Kniesburges

IPC分类号： C01D7/16 ,  B01D53/14 ,  C01D7/18 ,  B01D53/62

CPC分类号： C01D7/16 ,  B01D53/1418 ,  B01D53/1475 ,  B01D53/62 ,  B01D2251/304 ,  B01D2252/102 ,  B01D2258/0283 ,  C01D7/18 ,  Y02C10/04 ,  Y02C10/06 ,  Y02E20/326 ,  Y02P20/152

摘要： The present invention relates to an method for producing sodium carbonate by integration of a carbon dioxide capture process with an ammonia-soda process. The present invention moreover relates to a plant for producing sodium carbonate comprising a carbon dioxide capture system and an ammonia-soda system. Uses of fluid streams generated in a carbon dioxide capture process in an ammonia-soda process is moreover disclosed.

摘要翻译： 本发明涉及一种通过二氧化碳捕获方法与氨 - 苏打法的一体制备碳酸钠的方法。 本发明还涉及一种用于生产碳酸钠的设备，其包括二氧化碳捕集系统和氨 - 苏打系统。 此外，还公开了在氨 - 苏打工艺中在二氧化碳捕集过程中产生的流体物流的用途。

公开(公告)号：US20150239744A1

公开(公告)日：2015-08-27

申请号：US14630037

申请日：2015-02-24

申请人： ALSTOM Technology Ltd

发明人： Olaf STALLMANN ,  Christoph WEINGÄRTNER ,  Michael Charles BALFE

IPC分类号： C01D7/12

CPC分类号： C01D7/126 ,  B01D53/62 ,  B01D2251/404 ,  B01D2258/0283 ,  C01D7/18

摘要： The arrangement of a flue gas treatment system by carbonation-calcination loop and soda ash production system by Solvay process has CaO and heat for use in the soda ash production system extracted from the flue gas treatment system.

摘要翻译： 通过碳酸化 - 煅烧回路和苏打灰生产系统的烟道气处理系统通过Solvay方法的排列具有CaO和热量，用于从烟气处理系统中提取的纯碱生产系统。

公开(公告)号：US20130216467A1

公开(公告)日：2013-08-22

申请号：US13402783

申请日：2012-02-22

申请人： Basel Fathi ABU-SHARKH

发明人： Basel Fathi ABU-SHARKH

IPC分类号： C01D7/18

CPC分类号： C01D7/18 ,  C01F11/22 ,  C01P2004/20 ,  C01P2004/50

摘要： The method of producing soda ash and calcium chloride provides an environmentally friendly method of producing soda ash and calcium chloride without the production of waste and hazardous byproducts. The method of producing soda ash and calcium chloride is initiated with a volume of brine, which is ammoniated with gaseous ammonia to form ammoniated brine. Limestone is heated to produce calcium oxide and carbon dioxide. The ammoniated brine is reacted with the carbon dioxide to produce sodium bicarbonate, ammonium chloride and a brine effluent. The sodium bicarbonate is then calcined and decomposed to produce soda ash and gaseous carbon dioxide. The calcium oxide is reacted with the ammonium chloride to produce calcium chloride, water and ammonia. The ammonia is recycled to be used in the initial step of ammoniating the brine. The water and the brine effluent are also recycled and used to provide the brine in the initial step.

摘要翻译： 生产苏打灰和氯化钙的方法提供了生产苏打灰和氯化钙的环保方法，而不产生废物和危险的副产物。 产生苏打灰和氯化钙的方法是用一定体积的盐水引发的，该盐水用气态氨氨化以形成氨化盐水。 石灰石被加热以产生氧化钙和二氧化碳。 氨化盐水与二氧化碳反应生成碳酸氢钠，氯化铵和盐水。 然后将碳酸氢钠煅烧并分解以产生苏打灰和气态二氧化碳。 氧化钙与氯化铵反应生成氯化钙，水和氨。 将氨再循环用于在盐水的氨化的初始步骤中使用。 水和盐水流出物也被再循环并用于在初始步骤中提供盐水。

公开(公告)号：US20130039824A1

公开(公告)日：2013-02-14

申请号：US13651534

申请日：2012-10-15

申请人： BASEL FATHI ABU-SHARKH

发明人： BASEL FATHI ABU-SHARKH

IPC分类号： C22B26/20

CPC分类号： C01D7/12 ,  C01D3/06 ,  C01D7/18

摘要： The method of producing soda ash and calcium chloride provides an environmentally friendly method of producing soda ash and calcium chloride without the production of waste and hazardous byproducts. The method of producing soda ash and calcium chloride is initiated with a volume of brine, which is ammoniated with gaseous ammonia to form ammoniated brine. Limestone is heated to produce calcium oxide and carbon dioxide. The ammoniated brine is reacted with the carbon dioxide to produce sodium bicarbonate, ammonium chloride and a brine effluent. The sodium bicarbonate is then calcined and decomposed to produce soda ash and gaseous carbon dioxide. The calcium oxide is reacted with the ammonium chloride to produce calcium chloride, water and ammonia. The ammonia is recycled to be used in the initial step of ammoniating the brine. The water and the brine effluent are also recycled and used to provide the brine in the initial step.

公开(公告)号：US20110033355A1

公开(公告)日：2011-02-10

申请号：US12853433

申请日：2010-08-10

申请人： David R. Smith

发明人： David R. Smith

IPC分类号： B01D53/62 ,  C01D7/18

CPC分类号： B01D53/62 ,  B01D2251/302 ,  B01D2251/402 ,  B01D2251/404 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2257/502 ,  B01D2257/504 ,  C01D7/123 ,  C01D7/18 ,  C25C3/02 ,  Y02C10/04 ,  Y02P20/152

摘要： The present invention is directed to methods to sequester oxides of carbon to prevent them from entering the atmosphere as gases. More specifically, this invention is directed to methods of chemical reactions and process to decompose carbon oxides by combustion of a metal fuel with carbon oxides using a regeneration process to recover the metal fuel. The process can optionally and beneficially be coupled to other useful chemical processes for the industrial purpose of sequestering carbon oxides into useful commercial chemicals and elements like carbon, chlorine, and sodium bicarbonate.

摘要翻译： 本发明涉及隔离碳氧化物以防止它们作为气体进入大气的方法。 更具体地，本发明涉及化学反应方法和通过使用再生方法用碳氧化物燃烧来分解碳氧化物的方法，以回收金属燃料。 该方法可以任选地和有益地与其他有用的化学方法偶联，以将工业目的将碳氧化物螯合成有用的商业化学品和诸如碳，氯和碳酸氢钠的元素。

公开(公告)号：US5980848A

公开(公告)日：1999-11-09

申请号：US832798

申请日：1997-04-04

申请人： Steve Kresnyak ,  Jake Halldorson

发明人： Steve Kresnyak ,  Jake Halldorson

IPC分类号： B01D53/50 ,  C01C1/244 ,  C01D7/02 ,  C01D7/12 ,  C01D7/18 ,  C01F11/46 ,  C01B17/20

CPC分类号： C01C1/244 ,  B01D53/502 ,  C01D7/02 ,  C01D7/18

摘要： There is disclosed a process for recovering sodium bicarbonate and forming ammonium sulfate from a source containing sodium sulfate. The method involves contacting the sodium sulfate in solution with carbon dioxide and a compound containing ammonia. Sodium bicarbonate is precipitated in high purity form from the solution. It is important to maintain the temperature of the source solution at or above 32.degree. C. This provision eliminates contamination of hydrates or ammonium bicarbonate components. The filtrate of the sodium bicarbonate reaction can be further processed to yield an ammonium sulfate product in the concentrated liquid or precipitated form in high purity. The basic process can be expanded to be combined with a conventional Claus process for sulfur recovery as a Tail Gas Unit, or can be further employed in a wet and dry scrubbing process for FGD schemes.

摘要翻译： 公开了从含有硫酸钠的源中回收碳酸氢钠并形成硫酸铵的方法。 该方法包括使溶液中的硫酸钠与二氧化碳和含氨的化合物接触。 碳酸氢钠从溶液中以高纯度形式沉淀。 将源溶液的温度保持在32℃或以上是很重要的。该条款消除了水合物或碳酸氢铵组分的污染。 可以进一步处理碳酸氢钠反应的滤液，得到浓缩液体中的硫酸铵产物或高纯度的沉淀形式。 基本方法可以扩展为与作为尾气单元的硫回收的常规Claus方法组合，或者可以进一步用于FGD方案的湿式和干式洗涤方法。

公开(公告)号：US5270023A

公开(公告)日：1993-12-14

申请号：US969061

申请日：1992-10-30

申请人： Frank H. May ,  Fred C. Hohne

发明人： Frank H. May ,  Fred C. Hohne

IPC分类号： C01D7/12 ,  C01D7/18 ,  C01D7/26

CPC分类号： C01D7/12 ,  C01D7/18

摘要： A process for producing sodium carbonate from a variety of crude ores and brine containing sodium bicarbonate and sodium carbonate without the use of calcium carbonate. The process includes the steps of reacting the raw materials containing sodium bicarbonate and sodium carbonate with a bicarbonate filtrate containing ammonium chloride brine solution under heat, producing ammonia, carbon dioxide, and a mother liquor containing an aqueous solution of sodium chloride which is recycled. This solution may contain also sodium bicarbonate and sodium carbonate to enhance production. The mother liquor is separated and reacted with ammonia and carbon dioxide collected from the reacting step to crystalize sodium bicarbonate and produce an ammonium chloride brine solution which is recycled to react with the crude ore. In summary, the process will produce the equivalent sodium carbonate related to the ammonium chloride content of the bicarbonate filtrate in addition to the dissolved sodium carbonate values in the recycled ammonium chloride brine. The solution may be carried out on mined crude ore above ground or instead heated ammonium chloride brine solution may be pumped directly into the ore body in situ. Alternatively, heated sodium chloride solution may be passed through an underground ore deposit and the resulting solution reacted with ammonium chloride brine solution.

摘要翻译： 从不使用碳酸钙的各种粗矿石和含有碳酸氢钠和碳酸钠的盐水中生产碳酸钠的方法。 该方法包括以下步骤：将含有碳酸氢钠和碳酸钠的原料与含有氯化铵盐水溶液的碳酸氢盐滤液在加热下反应，生成氨，二氧化碳和含有再循环氯化钠水溶液的母液。 该溶液还可以含有碳酸氢钠和碳酸钠以增加生产。 将母液分离并与从反应步骤中收集的氨和二氧化碳反应以结晶碳酸氢钠并产生氯化铵盐水溶液，其被再循环以与粗矿石反应。 总之，除循环氯化铵盐水中溶解的碳酸钠值之外，该方法将产生与碳酸氢盐滤液中氯化铵含量相关的当量碳酸钠。 溶液可以在地上开采的粗矿石上进行，或者加热的氯化铵盐水溶液可以直接泵入矿体中。 或者，加热的氯化钠溶液可以通过地下矿床，所得溶液与氯化铵盐水溶液反应。

公开(公告)号：US4563340A

公开(公告)日：1986-01-07

申请号：US544625

申请日：1983-10-24

申请人： Jose Polendo-Loredo

发明人： Jose Polendo-Loredo

IPC分类号： C01D7/18

CPC分类号： C01D7/18

摘要： This invention is related to a process for the secondary obtention of sodium carbonate from a waste liquor (known as FLP waste liquor) containing principally sodium chloride, ammonium bicarbonate, ammonium chloride and carbon dioxide, which is obtained in the filtering section within the solvay process for the primary obtention of sodium carbonate, by adding a compound or a mixture of compounds sodium ions to the FLP waste liquor in the presence of carbon dioxide, in order to precipitate sodium bicarbonate therefrom, and treating the precipitation and sodium bicarbonate to obtain the secondary production of sodium carbonate.

摘要翻译： 本发明涉及从溶剂流程中过滤部分获得的主要含氯化钠，碳酸氢铵，氯化铵和二氧化碳的废液（称为FLP废液）中二次获得碳酸钠的方法。 为了主要获得碳酸钠，通过在二氧化碳的存在下向FLP废液中加入化合物或化合物钠离子的混合物以从其中沉淀碳酸氢钠，并处理沉淀和碳酸氢钠以获得二次 生产碳酸钠。

公开(公告)号：US4001381A

公开(公告)日：1977-01-04

申请号：US381058

申请日：1973-07-20

申请人： Aurelian M. Dascalescu ,  Grigore O. Socolescu

发明人： Aurelian M. Dascalescu ,  Grigore O. Socolescu

IPC分类号： C01D7/12 ,  C01D7/18 ,  C01D7/38 ,  C01D7/37

CPC分类号： C01D7/18 ,  C01D7/123 ,  C01D7/38

摘要： The invention is a heavy sodium carbonate -dense soda- in the form of briquettes, having great density, and includes also the commercial forms of heavy sodium carbonate in the form of powder, grains and briquettes, which products are obtained by grinding - or not as required - the briquettes. The invention also comprises a novel process which produces these briquettes by briquetting of the dry sodium bicarbonate from the SOLVAY or TRONA soda ash fabrication process, which after filtering or centrifuging and drying is briquetted at a pressure between 500 to 1000 kg/cm.sup.2 ; the briquettes with a density of 1.8 kg/dm.sup.3, are then introduced into a heated static space at 700.degree. to 750.degree. C., and maintained there until the bicarbonate briquettes turn into dense sodium carbonate briquettes, with a density of 2.2 - 2.4 kg/dm.sup.3.