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公开(公告)号:US07713312B2
公开(公告)日:2010-05-11
申请号:US11409050
申请日:2006-04-24
IPC分类号: C01D7/40
CPC分类号: C01D7/10
摘要: A process for producing an alkali metal hydrogencarbonate by reacting an aqueous solution containing alkali metal ions with carbon dioxide in a prescribed crystallizer to precipitate crystals of an alkali metal hydrogencarbonate, and in this process a part of a slurry containing the alkali metal hydrogencarbonate crystals in the aqueous solution is withdrawn from the crystallizer and, after dissolution of a part of the crystals, it is returned to the crystallizer.
摘要翻译: 一种碱金属碳酸氢盐的制造方法,其特征在于,在含有碱金属离子的水溶液与规定的结晶器中的二氧化碳反应生成碱金属碳酸氢盐,使碱金属碳酸氢盐的结晶析出,在该工序中,将含有碱金属碳酸氢盐结晶的浆料 从结晶器中取出水溶液,在溶解部分晶体后,将其返回结晶器。
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公开(公告)号:US20060193765A1
公开(公告)日:2006-08-31
申请号:US11409050
申请日:2006-04-24
CPC分类号: C01D7/10
摘要: To provide a process for easily obtaining an alkali metal hydrogencarbonate having a large crystal particle size in good yield by an industrially convenient installation by a crystallization method from an aqueous solution. A process for producing an alkali metal hydrogencarbonate, which comprises reacting an aqueous solution containing alkali metal ions with carbon dioxide in a prescribed crystallizer to precipitate crystals of an alkali metal hydrogencarbonate, characterized in that a part of a slurry containing the above crystals in the above aqueous solution, is withdrawn from the above crystallizer and, after a part of the above crystals is dissolved, returned to the above crystallizer.
摘要翻译: 提供一种通过工业上方便的装置通过结晶方法从水溶液中容易地获得具有大晶粒尺寸的碱金属碳酸氢盐的方法,其产率良好。 一种碱金属碳酸氢盐的制造方法,其特征在于,在规定的结晶器中使含有碱金属离子的水溶液与二氧化碳反应,沉淀出碱金属碳酸氢盐的结晶,其特征在于,在上述含有上述结晶的浆料的一部分 水溶液从上述结晶器中取出,一部分上述晶体溶解后,返回上述结晶器。
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