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1. 发明授权

US08012443B2 Spherical calcium carbonate and method of producing the same 失效
标题翻译：球形碳酸钙及其制造方法
公开(公告)号：US08012443B2
公开(公告)日：2011-09-06
申请号：US12791451
申请日：2010-06-01
申请人： Kenshiro Makino , Kazuo Yamashita
发明人： Kenshiro Makino , Kazuo Yamashita
IPC分类号： C01F11/18
CPC分类号： D21H19/385 , A61K8/19 , A61Q1/00 , C01F11/182 , C01P2004/32 , C01P2004/61 , C01P2006/21 , C01P2006/60
摘要： When spherical calcium carbonate is produced by blowing a carbon dioxide gas or a carbon dioxide-containing gas into an aqueous suspension containing calcium hydroxide to react them, after start of the reaction, an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof is added to the reaction mixture when carbonation ratio reaches 2 to 10%, and the reaction is further allowed to continue at a low gas blowing rate of 1.0 NL/minute or lower (step (a)). Subsequently, an aqueous suspension containing calcium hydroxide and an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof are added to the reaction mixture, and a carbon dioxide gas or a carbon dioxide-containing gas is introduced to allow to react and thereby produce spherical calcium carbonate having a mean particle diameter of 10 μm or larger. This production method is performed under high velocity revolution from the start of the reaction to the end of the step (a). This method provides calcite type spherical calcium carbonate showing high brightness and small friction coefficient, and having a shape comparatively close to a true sphere and a mean particle diameter of 10 μm or larger.
摘要翻译：当通过将二氧化碳气体或含二氧化碳的气体吹入含有氢氧化钙的水性悬浮液中以使其发生反应而制备球形碳酸钙时，反应开始后，将水溶性磷酸化合物或水溶性磷酸化合物的水溶液或悬浮液当碳酸化比达到2〜10％时，将其水溶性盐加入到反应混合物中，并且进一步允许反应以1.0NL /分钟以下的低气体吹入速率继续（步骤（a））。随后，将含有氢氧化钙的水性悬浮液和水溶性磷酸化合物或其水溶性盐的水溶液或悬浮液加入到反应混合物中，并引入二氧化碳气体或含二氧化碳的气体使其反应，从而制造平均粒径为10μm以上的球状碳酸钙。该制造方法在从反应开始到步骤（a）结束的高速旋转下进行。该方法提供了具有高亮度和小摩擦系数的方解石型球形碳酸钙，并且具有比较接近真实球体的形状和10μm或更大的平均粒径。

2. 发明授权

US07754176B2 Spherical calcium carbonate and method for producing thereof 失效
标题翻译：球形碳酸钙及其制造方法
公开(公告)号：US07754176B2
公开(公告)日：2010-07-13
申请号：US10547000
申请日：2004-02-26
申请人： Kenshiro Makino , Kazuo Yamashita
发明人： Kenshiro Makino , Kazuo Yamashita
IPC分类号： C01F11/18
CPC分类号： D21H19/385 , A61K8/19 , A61Q1/00 , C01F11/182 , C01P2004/32 , C01P2004/61 , C01P2006/21 , C01P2006/60
摘要： When spherical calcium carbonate is produced by blowing a carbon dioxide gas or a carbon dioxide-containing gas into an aqueous suspension containing calcium hydroxide to react them, after start of the reaction, an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof is added to the reaction mixture when carbonation ratio reaches 2 to 10%, and the reaction is further allowed to continue at a low gas blowing rate of 1.0 NL/minute or lower (step (a)). Subsequently, an aqueous suspension containing calcium hydroxide and an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof are added to the reaction mixture, and a carbon dioxide gas or a carbon dioxide-containing gas is introduced to allow to react and thereby produce spherical calcium carbonate having a mean particle diameter of 10 μm or larger. This production method is performed under high velocity revolution from the start of the reaction to the end of the step (a) This method provides calcite type spherical calcium carbonate showing high brightness and small friction coefficient, and having a shape comparatively close to a true sphere and a mean particle diameter of 10 μm or larger.
摘要翻译：当通过将二氧化碳气体或含二氧化碳的气体吹入含有氢氧化钙的水性悬浮液中以使其发生反应而制备球形碳酸钙时，反应开始后，将水溶性磷酸化合物或水溶性磷酸化合物的水溶液或悬浮液当碳酸化比达到2〜10％时，将其水溶性盐加入到反应混合物中，并且进一步允许反应以1.0NL /分钟以下的低气体吹入速率继续（步骤（a））。随后，将含有氢氧化钙的水性悬浮液和水溶性磷酸化合物或其水溶性盐的水溶液或悬浮液加入到反应混合物中，并引入二氧化碳气体或含二氧化碳的气体使其反应，从而制造平均粒径为10μm以上的球状碳酸钙。该制造方法在从反应开始到步骤（a）结束的高速旋转下进行。该方法提供了表现出高亮度和小摩擦系数的方解石型球形碳酸钙，并且具有比较接近真实球体的形状平均粒径为10μm以上。

3. 发明申请

US20100239511A1 SPHERICAL CALCIUM CARBONATE AND METHOD OF PRODUCING THE SAME 失效
标题翻译：球形碳酸钙及其制造方法
公开(公告)号：US20100239511A1
公开(公告)日：2010-09-23
申请号：US12791451
申请日：2010-06-01
申请人： Kenshiro MAKINO , Kazuo YAMASHITA
发明人： Kenshiro MAKINO , Kazuo YAMASHITA
IPC分类号： C01F11/18 , A61K8/19
CPC分类号： D21H19/385 , A61K8/19 , A61Q1/00 , C01F11/182 , C01P2004/32 , C01P2004/61 , C01P2006/21 , C01P2006/60
摘要： When spherical calcium carbonate is produced by blowing a carbon dioxide gas or a carbon dioxide-containing gas into an aqueous suspension containing calcium hydroxide to react them, after start of the reaction, an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof is added to the reaction mixture when carbonation ratio reaches 2 to 10%, and the reaction is further allowed to continue at a low gas blowing rate of 1.0 NL/minute or lower (step (a)). Subsequently, an aqueous suspension containing calcium hydroxide and an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof are added to the reaction mixture, and a carbon dioxide gas or a carbon dioxide-containing gas is introduced to allow to react and thereby produce spherical calcium carbonate having a mean particle diameter of 10 μm or larger. This production method is performed under high velocity revolution from the start of the reaction to the end of the step (a). This method provides calcite type spherical calcium carbonate showing high brightness and small friction coefficient, and having a shape comparatively close to a true sphere and a mean particle diameter of 10 μm or larger.
摘要翻译：当通过将二氧化碳气体或含二氧化碳的气体吹入含有氢氧化钙的水性悬浮液中以使其发生反应而制备球形碳酸钙时，反应开始后，将水溶性磷酸化合物或水溶性磷酸化合物的水溶液或悬浮液当碳酸化比达到2〜10％时，将其水溶性盐加入到反应混合物中，并且进一步允许反应以1.0NL /分钟以下的低气体吹入速率继续（步骤（a））。随后，将含有氢氧化钙的水性悬浮液和水溶性磷酸化合物或其水溶性盐的水溶液或悬浮液加入到反应混合物中，并引入二氧化碳气体或含二氧化碳的气体使其反应，从而制造平均粒径为10μm以上的球状碳酸钙。该制造方法在从反应开始到步骤（a）结束的高速旋转下进行。该方法提供了具有高亮度和小摩擦系数的方解石型球形碳酸钙，并且具有比较接近真实球体的形状和10μm或更大的平均粒径。

4. 发明申请

US20060165583A1 Spherical calcium carbonate and method for producing thereof 失效
标题翻译：球形碳酸钙及其制造方法
公开(公告)号：US20060165583A1
公开(公告)日：2006-07-27
申请号：US10547000
申请日：2004-02-26
申请人： Kenshiro Makino , Kazuo Yamashita
发明人： Kenshiro Makino , Kazuo Yamashita
IPC分类号： C01F11/18 , C01F5/24
CPC分类号： D21H19/385 , A61K8/19 , A61Q1/00 , C01F11/182 , C01P2004/32 , C01P2004/61 , C01P2006/21 , C01P2006/60
摘要： When spherical calcium carbonate is produced by blowing a carbon dioxide gas or a carbon dioxide-containing gas into an aqueous suspension containing calcium hydroxide to react them, after start of the reaction, an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof is added to the reaction mixture when carbonation ratio reaches 2 to 10%, and the reaction is further allowed to continue at a low gas blowing rate of 1.0 NL/minute or lower (step (a)). Subsequently, an aqueous suspension containing calcium hydroxide and an aqueous solution or suspension of a water-soluble phosphoric acid compound or a water-soluble salt thereof are added to the reaction mixture, and a carbon dioxide gas or a carbon dioxide-containing gas is introduced to allow to react and thereby produce spherical calcium carbonate having a mean particle diameter of 10 μm or larger. This production method is performed under high velocity revolution from the start of the reaction to the end of the step (a) This method provides calcite type spherical calcium carbonate showing high brightness and small friction coefficient, and having a shape comparatively close to a true sphere and a mean particle diameter of 10 μm or larger.
摘要翻译：当通过将二氧化碳气体或含二氧化碳的气体吹入含有氢氧化钙的水性悬浮液中以使其发生反应而制备球形碳酸钙时，反应开始后，将水溶性磷酸化合物或水溶性磷酸化合物的水溶液或悬浮液当碳酸化比达到2〜10％时，将其水溶性盐加入到反应混合物中，并且进一步允许反应以1.0NL /分钟以下的低气体吹入速率继续（步骤（a））。随后，将含有氢氧化钙的水性悬浮液和水溶性磷酸化合物或其水溶性盐的水溶液或悬浮液加入到反应混合物中，并引入二氧化碳气体或含二氧化碳的气体使其反应，从而生成平均粒径为10μm以上的球状碳酸钙。该制造方法在从反应开始到步骤（a）结束的高速旋转下进行。该方法提供了表现出高亮度和小摩擦系数的方解石型球形碳酸钙，并且具有比较接近真实球体的形状平均粒径为10μm以上。

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