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1. 发明授权

US5342443A Method for bleaching kaolin clay 失效
标题翻译：漂白高岭土的方法
公开(公告)号：US5342443A
公开(公告)日：1994-08-30
申请号：US43249
申请日：1993-04-06
申请人： Ellen S. Forbus , George E. Gantt , Mitchell J. Willis , Raymond H. Young
发明人： Ellen S. Forbus , George E. Gantt , Mitchell J. Willis , Raymond H. Young
IPC分类号： C04B33/10 , C09C1/42 , C04B14/04
CPC分类号： C09C1/42 , C04B33/10 , C01P2006/60 , C01P2006/80
摘要： An improved method for improving the brightness of clay of the type that is capable of being bleached by an oxidative reagent such as Georgia gray kaolin. Such clay, in the form of a dispersed slurry, is treated with a combination of sodium silicate, sodium hypochlorite and ozone, most preferably followed by magnetic purification and a reduction bleach. Sodium hypochlorite is added shortly before ozonation.
摘要翻译：一种改进的能够通过氧化试剂如格鲁吉亚灰高岭土漂白的类型的粘土的亮度的改进方法。以分散浆料形式的这种粘土用硅酸钠，次氯酸钠和臭氧的组合进行处理，最优选的是磁性净化和还原漂白。次氯酸钠在臭氧化之前即将加入。

2. 发明授权

US5145814A In situ method for producing hydrosulfite beach and use thereof 失效
标题翻译：生产连二亚硫酸盐海滩的原位方法及其应用
公开(公告)号：US5145814A
公开(公告)日：1992-09-08
申请号：US776507
申请日：1991-10-11
申请人： Mitchell J. Willis , Raymond H. Young , Ellen S. Forbus , Larry W. Donaldson
发明人： Mitchell J. Willis , Raymond H. Young , Ellen S. Forbus , Larry W. Donaldson
IPC分类号： C01B33/40 , C04B33/10
CPC分类号： C01B33/40 , C04B33/10 , C01P2004/60 , C01P2006/22 , C01P2006/60
摘要： A process for reacting metallic iron with sulfur dioxide (SO.sub.2) gas in the presence of water and bleachable matter, especially iron-contaminated kaolin clay, whereby the kaolin or the like is bleached in situ.
摘要翻译：在水和可漂白材料，特别是铁污染的高岭土存在下，使金属铁与二氧化硫（SO2）气体反应的方法，其中高岭土等原位漂白。

3. 发明授权

US5624488A Ultrahigh brightness calcined clay pigment, manufacture & use thereof 失效
标题翻译：超高亮度煅烧粘土颜料，制造及使用
公开(公告)号：US5624488A
公开(公告)日：1997-04-29
申请号：US497241
申请日：1995-06-30
申请人： Ellen S. Forbus , Paul R. Suitch , Thomas Dombrowski
发明人： Ellen S. Forbus , Paul R. Suitch , Thomas Dombrowski
IPC分类号： C09C1/42 , C04B14/10
CPC分类号： C09C1/42 , C01P2004/51 , C01P2004/61 , C01P2006/14 , C01P2006/16 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/80 , C01P2006/90 , Y10T428/31993
摘要： A selected kaolin crude or crude fraction is purified by physical or physical/chemical means, such as froth flotation and/or selective flocculation, to remove discrete particles of TiO.sub.2 and in some cases, discrete iron minerals. The pure (or purified clay) must then be agitated in the presence of water with a particulate grinding media such as, for example, sand, alumina or zirconia beads, to increase the 2 micron content of the kaolin. An intermediate ground product that contains a substantial weight percentage of particles finer than 1 micron is generated as a result of grinding. The particles finer than 1 micron in the ground kaolin also include those particles in the previously pure or purified kaolin that were present in the naturally occurring clay. A pulp of the ground clay is then fractionated to remove particles larger than 2 microns, e.g., to remove at least 95%, preferably at 100% by weight, of the particles larger than 2 microns, while minimizing the removal of particles finer than 1 micron. The resulting fine particles size fraction is then treated by conventional series of steps, i.e., optional bleaching, drying, pulverization, calcination and repulverization to produce a low abrasion, ultrahigh brightness (typically 96%) calcined kaolin pigment.
摘要翻译：选择的高岭土原油或粗馏分通过物理或物理/化学方法如泡沫浮选和/或选择性絮凝来纯化，以去除离散的TiO 2颗粒，并且在一些情况下，分散的铁矿物质。然后必须在水的存在下用颗粒研磨介质例如砂，氧化铝或氧化锆珠搅拌纯（或纯化的粘土），以增加高岭土的2微米含量。作为研磨的结果产生了含有大于1微米的颗粒的重量百分数的中间磨碎产物。研磨高岭土中微粒比1微米的颗粒还包括存在于天然粘土中的先前纯化或纯化的高岭土中的那些颗粒。然后将研磨粘土的纸浆分馏以除去大于2微米的颗粒，例如，除去大于2微米的颗粒的至少95％，优选100重量％，同时最小化除去比1更细的颗粒微米。然后通过常规的一系列步骤，即任选的漂白，干燥，粉碎，煅烧和再造浆处理所得到的细粒度级分，以产生低磨损，超高亮度（通常为96％）的煅烧高岭土颜料。

4. 发明授权

US5391526A Situ method for producing hydrosulfite bleach and use thereof 失效
标题翻译：用于生产连二亚硫酸盐漂白剂的原位方法及其用途
公开(公告)号：US5391526A
公开(公告)日：1995-02-21
申请号：US214073
申请日：1994-03-14
申请人： Mitchell J. Willis , Raymond H. Young , Ellen S. Forbus , Larry W. Donaldson
发明人： Mitchell J. Willis , Raymond H. Young , Ellen S. Forbus , Larry W. Donaldson
IPC分类号： C01B33/40 , C04B33/10 , C09C1/42 , C04B33/02
CPC分类号： C09C1/42 , C01B33/40 , C04B33/10 , C01P2004/60 , C01P2004/61 , C01P2006/22 , C01P2006/60
摘要： A process for reacting metallic iron with sulfur dioxide (SO.sub.2) gas in the presence of water and bleachable matter, especially iron-contaminated kaolin clay, whereby the kaolin or the like is bleached in situ and the viscosity of the kaolin is less than it would be if bleached in a conventional manner.
摘要翻译：一种在水和可漂白材料，特别是铁污染的高岭土存在下使金属铁与二氧化硫（SO2）气体反应的方法，其中高岭土等原位漂白，高岭土的粘度小于如果以常规方式漂白。

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