发明申请
US20070196264A1 Process for producing calcium trisulfoaluminate and apparatus for use in said process
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基本信息:
- 专利标题： Process for producing calcium trisulfoaluminate and apparatus for use in said process
- 专利标题（中）：用于生产三硫铝酸钙的方法和用于所述方法的装置
- 申请号：US11702017 申请日：2007-02-02
- 公开(公告)号：US20070196264A1 公开(公告)日：2007-08-23
- 发明人： Takayuki Kishida , Yuichi Ogawa , Yoshiki Kojima , Takuya Ono , Kenichi Mitsui , Tetsuya Hirabayashi , Masaki Nakano
- 申请人： Takayuki Kishida , Yuichi Ogawa , Yoshiki Kojima , Takuya Ono , Kenichi Mitsui , Tetsuya Hirabayashi , Masaki Nakano
- 优先权： JPJP2004-227553 20040804; JPJP2005-123689 20050421
- 主分类号： C01F7/76
- IPC分类号： C01F7/76 ; B01J8/00
摘要：
This invention provides a production process, which can stably produce high-quality satin white (calcium trisulfoaluminate) having very small and homogeneous particulate shapes suitable for incorporation into coated paper for printing, and an apparatus for use in said process. In this process for producing calcium trisulfoaluminate, a calcium hydroxide suspension (A) is reacted with an aqueous aluminum sulfate solution (B) to produce calcium trisulfoaluminate (C). The aqueous aluminum sulfate solution (B) is added in plurality of stages to the calcium hydroxide suspension (A). At least any one stage of the plurality of stages addition, addition of the aqueous aluminum sulfate solution (B) to the calcium hydroxide suspension (A) is carried out in such a manner that the aqueous aluminum sulfate solution (B) is continuously added to the calcium hydroxide suspension (A) being continuously transferred.
摘要（中）：
本发明提供一种生产方法，其可以稳定地生产出具有非常小且均匀的颗粒形状的缎面白（三硫铝酸钙），其适于掺入用于印刷的涂布纸中，以及用于所述方法的设备。 在这种生产三磺铝酸钙的方法中，氢氧化钙悬浮液（A）与硫酸铝水溶液（B）反应生成三硫铝酸钙（C）。 将氢氧化铝悬浮液（A）分多次加入硫酸铝水溶液（B）中。 在多级阶段的至少任一阶段中，向氢氧化钙悬浮液（A）中加入硫酸铝水溶液（B）的方法是将硫酸铝水溶液（B）连续加入到 氢氧化钙悬浮液（A）被连续转移。