Process for producing sodium carbonate
    3.
    发明公开
    Process for producing sodium carbonate 审中-公开
    Verfahren zur Herstellung von Natriumcarbonat

    公开(公告)号:EP2078698A1

    公开(公告)日:2009-07-15

    申请号:EP08150105.8

    申请日:2008-01-08

    摘要: Process to produce sodium carbonate according to which :
    • a first production solution comprising sodium carbonate is introduced into the 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 the 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 the flux of sodium ions crossing the cationic membrane and the flux of hydroxyl ions crossing the anionic face of the bipolar membranes;
    • the solution comprising sodium hydroxide is extracted from the more basic compartments of the electrodialyser and used to constitute a reaction solution;
    • the reaction solution is reacted with sodium bicarbonate in order to form a produced solution comprising sodium carbonate.

    摘要翻译: 生产碳酸钠的方法,其中将包含碳酸钠的第一种生产溶液引入电渗析器的较不碱性的隔室中,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,更基本的隔室 由一侧的双极膜的阴离子面和另一侧的阳离子膜界定; 将包含碳酸钠的第二种生产溶液引入电渗析器的更基本的隔室中; 通过结合穿过阳离子膜的钠离子的通量和与双极性膜的阴离子表面交叉的羟基离子的通量组合,将包含氢氧化钠的溶液制成更碱性的隔室; 从电离渗析器的更碱性的隔室中提取包含氢氧化钠的溶液,并用于构成反应溶液; 反应溶液与碳酸氢钠反应,以形成包含碳酸钠的生产溶液。

    Process for producing sodium carbonate and/or sodium bicarbonate from an ore mineral comprising sodium bicarbonate
    4.
    发明公开
    Process for producing sodium carbonate and/or sodium bicarbonate from an ore mineral comprising sodium bicarbonate 审中-公开
    一种用于从矿石矿物用碳酸氢钠生产碳酸钠和/或碳酸氢钠处理

    公开(公告)号:EP2078697A1

    公开(公告)日:2009-07-15

    申请号:EP08150104.1

    申请日:2008-01-08

    摘要: Process to produce sodium carbonate and/or sodium bicarbonate from an ore mineral comprising sodium bicarbonate according to which :
    • a production solution comprising sodium carbonate is introduced into the 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 the anionic faces of bipolar membranes on one side and by the cationic membranes on the other side;
    • a solution comprising sodium hydroxide is produced into the more basic compartments, by combination of the flux of sodium ions crossing the cationic membrane and the flux of hydroxyl ions crossing the anionic face of the bipolar membranes;
    • the solution comprising sodium hydroxide is extracted from the more basic compartments of the electrodialyser and used to constitute a reaction solution;
    • the reaction solution is put into contact with the mineral ore comprising sodium bicarbonate in order to form a solution comprising sodium carbonate;
    • the solution comprising sodium carbonate is divided into a part which is used to constitute the production solution and a remaining part which constitutes a produced solution.

    摘要翻译: 工艺生产碳酸钠和/或碳酸氢钠从矿石矿物的包含碳酸氢钠雅丁到其中:€¢生产包含碳酸钠的溶液被引入到电渗析器包括从分离的交替的碱性较弱和更基本的相邻隔室中的碱性较弱的室 海誓山盟通过阳离子膜,所述碱性较强的室在一侧,并通过在另一侧上的阳离子膜界定由双极性膜的阴离子面; €¢溶液包含氢氧化钠产生到碱性较强的室,通过钠离子穿过该阳离子膜和氢氧根离子穿过这些双极性膜的阴离子面的通量的通量的组合; €¢所述溶液包含氢氧化钠从该电渗析器的碱性较强的室中提取,并用于构成的反应液; €¢将反应溶液放入与矿物矿石以便包含碳酸氢钠接触以形成包含碳酸钠的溶液; €¢所述溶液包含碳酸钠被分成部分中的所有这是用来构成该生产溶液以及构成所产生的溶液的剩余部分。

    PROCESS FOR PRODUCING SODIUM CARBONATE AND/OR SODIUM BICARBONATE FROM AN ORE MINERAL COMPRISING SODIUM BICARBONATE
    6.
    发明公开
    PROCESS FOR PRODUCING SODIUM CARBONATE AND/OR SODIUM BICARBONATE FROM AN ORE MINERAL COMPRISING SODIUM BICARBONATE 有权
    用于生产碳酸钠和/或从一个碳酸氢钠的矿石矿物,用碳酸氢钠

    公开(公告)号:EP2240408A1

    公开(公告)日:2010-10-20

    申请号:EP09701448.4

    申请日:2009-01-06

    申请人: Solvay

    摘要: Process for producing sodium carbonate and/or sodium bicarbonate from an ore mineral comprising sodium bicarbonate Process to produce sodium carbonate and/ or sodium bicarbonate from an ore mineral comprising sodium bicarbonate according to which : a production solution comprising sodium carbonate is introduced into the less basic compartments of an electrodialys er comprising alternating less basic and more basic adjacent compartments separated from each other by cationic membranes, the more basic compartments being delimited by the anionic faces of bipolar membranes on one side and by the cationic membranes on the other side; a solution comprising sodium hydroxide is produced into the more basic compartments, by combination of the flux of sodium ions crossing the cationic membrane and the flux of hydroxyl ions crossing the anionic face of the bipolar membranes; the solution comprising sodium hydroxide is extracted from the more basic compartments of the electrodialyser and used to constitute a reaction solution; the reaction solution is put into contact with the mineral ore comprising sodium bicarbonate in order to form a solution comprising sodium carbonate; the solution comprising sodium carbonate is divided into a part which is used to constitute the production solution and a remaining part which constitutes a produced solution.

    摘要翻译: 工艺生产碳酸钠和/或碳酸氢钠从矿石矿物的包含碳酸氢钠雅丁到其中:€¢生产包含碳酸钠的溶液被引入到电渗析器包括从分离的交替的碱性较弱和更基本的相邻隔室中的碱性较弱的室 海誓山盟通过阳离子膜,所述碱性较强的室在一侧,并通过在另一侧上的阳离子膜界定由双极性膜的阴离子面; €¢溶液包含氢氧化钠产生到碱性较强的室,通过钠离子穿过该阳离子膜和氢氧根离子穿过这些双极性膜的阴离子面的通量的通量的组合; €¢所述溶液包含氢氧化钠从该电渗析器的碱性较强的室中提取,并用于构成的反应液; €¢将反应溶液放入与矿物矿石以便包含碳酸氢钠接触以形成包含碳酸钠的溶液; €¢所述溶液包含碳酸钠被分成部分中的所有这是用来构成该生产溶液以及构成所产生的溶液的剩余部分。

    PROCESS FOR PRODUCING SODIUM CARBONATE
    7.
    发明公开
    PROCESS FOR PRODUCING SODIUM CARBONATE 有权
    用于生产钠

    公开(公告)号:EP2240407A1

    公开(公告)日:2010-10-20

    申请号:EP09701181.1

    申请日:2009-01-06

    摘要: Process to produce sodium carbonate according to which : • a first production solution comprising sodium carbonate is introduced into the 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 the 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 the flux of sodium ions crossing the cationic membrane and the flux of hydroxyl ions crossing the anionic face of the bipolar membranes; • the solution comprising sodium hydroxide is extracted from the more basic compartments of the electrodialyser and used to constitute a reaction solution; • the reaction solution is reacted with sodium bicarbonate in order to form a produced solution comprising sodium carbonate.