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1. 发明公开

EP0596801A2 Expandable graphite compositions for absorption of liquids and method for the manufacture thereof 失效
标题翻译：用于液体的吸收膨胀石墨组合物，以及它们的制备方法。
公开(公告)号：EP0596801A2
公开(公告)日：1994-05-11
申请号：EP93402702.0
申请日：1993-11-04
申请人： ENVIRONMENTAL SYSTEMS Ltd.
发明人： Sandbank, Enrico , Maryasin, Ilya , Shelef, Gedaliah
IPC分类号： C01B31/00 , C02F1/28 , C09K3/32
CPC分类号： C09K3/32 , B01D17/0202 , B01J20/20 , C01B32/00 , C02F1/681
摘要： A structural form of expanded graphite which possesses a relatively high bulk density is obtained by treating a natural graphite with a mixture of nitric acid and sulfuric acid, washing the treated graphite by an aqueous solution containing magnesium ions, followed by a thermal treatment at a temperature of above 1200°C. A preferred aqueous solution to be used in said washing will contain magnesium sulfate, the resulted product having a pH in the range of 6.5 to 6.9. A preferred thermal treatment is in a flame resulted from a mixture of butane and oxygen. In this manner, the expanded graphite will be produced in-situ near the envisaged area for its use, being spread thereon by the combustion gases. The structural form of expanded graphite has the property to absorb relatively large amounts of liquid materials, such as petroleum products and strong mineral acids.

2. 发明公开

EP0596801A3 Expandable graphite compositions for absorption of liquids and method for the manufacture thereof 失效
标题翻译：用于液体的吸收膨胀石墨组合物，以及它们的制备方法。
公开(公告)号：EP0596801A3
公开(公告)日：1995-02-15
申请号：EP93402702.0
申请日：1993-11-04
申请人： ENVIRONMENTAL SYSTEMS Ltd.
发明人： Sandbank, Enrico , Maryasin, Ilya , Shelef, Gedaliah
IPC分类号： C01B31/00 , C02F1/28 , C09K3/32
CPC分类号： C09K3/32 , B01D17/0202 , B01J20/20 , C01B32/00 , C02F1/681
摘要： A structural form of expanded graphite which possesses a relatively high bulk density is obtained by treating a natural graphite with a mixture of nitric acid and sulfuric acid, washing the treated graphite by an aqueous solution containing magnesium ions, followed by a thermal treatment at a temperature of above 1200°C. A preferred aqueous solution to be used in said washing will contain magnesium sulfate, the resulted product having a pH in the range of 6.5 to 6.9. A preferred thermal treatment is in a flame resulted from a mixture of butane and oxygen. In this manner, the expanded graphite will be produced in-situ near the envisaged area for its use, being spread thereon by the combustion gases. The structural form of expanded graphite has the property to absorb relatively large amounts of liquid materials, such as petroleum products and strong mineral acids.
摘要翻译：本发明涉及的膨胀石墨的一种新颖的结构形式，其具有相对高的堆密度为游离缺失盘。膨胀石墨是通过处理天然石墨用硝酸和硫酸的混合物，洗涤通过在wässrige溶液含有镁离子处理的石墨获得，随后通过热处理在温度高于1200℃，优选的水溶液在洗涤所述使用含有硫酸镁，具有pH范围6.5至6.9所得到的产物。优选的热处理是在火焰造成的丁烷和氧气的混合物。以这种方式，将膨胀石墨将在原位产生近设想区域供其使用，在其上由燃烧气体散布。膨胀石墨的新的结构形式具有吸收液体材料，颜色的相对大量的属性：例如石油产品和强无机酸。

3. 发明授权

EP0596801B1 Expandable graphite compositions for absorption of liquids and method for the manufacture thereof 失效
标题翻译：它们的制备用于液体的吸收膨胀石墨组合物以及流程
公开(公告)号：EP0596801B1
公开(公告)日：1998-05-06
申请号：EP93402702.0
申请日：1993-11-04
申请人： ENVIRONMENTAL SYSTEMS Ltd.
发明人： Sandbank, Enrico , Maryasin, Ilya , Shelef, Gedaliah
IPC分类号： C01B31/00 , C02F1/28 , C09K3/32
CPC分类号： C09K3/32 , B01D17/0202 , B01J20/20 , C01B32/00 , C02F1/681

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