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1. 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。

2. 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。

3. 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。

4. 发明授权

US5535890A Method for separating mixture of finely divided minerals 失效
标题翻译：分离细分矿物的混合物的方法
公开(公告)号：US5535890A
公开(公告)日：1996-07-16
申请号：US350913
申请日：1994-12-07
申请人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
发明人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
IPC分类号： B03D3/06 , C09C1/42 , B03B1/00
CPC分类号： C09C1/42 , B03D3/06 , C01P2004/51 , C01P2004/62 , C01P2006/22 , C01P2006/60 , C01P2006/80
摘要： This invention relates to a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the mixture of minerals is preconditioned for selective flocculation with an anionic polymer by addition of both a fatty acid such as oleic acid and source of polyvalent cation such as calcium chloride. The fatty acid and cation of the salt selectively coat the component of the mixture that is subsequently flocculated with the anionic polymer. A polyacrylate salt dispersant is preferably used in the process. The invention is especially adapted to the separation of colored titaniferous impurities from kaolin clay.
摘要翻译：本发明涉及将细分矿物的混合物分离成其成分的方法。特别地，本发明涉及通过新的选择性絮凝技术实现这种分离的方法，其中通过添加脂肪酸如油酸和/或阴离子聚合物预先配制含有矿物混合物的分散的水性纸浆以用于与阴离子聚合物的选择性絮凝，多价阳离子源如氯化钙。盐的脂肪酸和阳离子选择性地涂覆随后与阴离子聚合物絮凝的混合物的组分。在该方法中优选使用聚丙烯酸盐分散剂。本发明特别适用于从高岭土中分离着色的含钛杂质。

5. 发明授权

US5922207A Filter aid for clay processing 失效
标题翻译：过滤助剂用于粘土处理
公开(公告)号：US5922207A
公开(公告)日：1999-07-13
申请号：US70681
申请日：1998-04-30
申请人： Mitchell J. Willis , Sanjay Behl , Raymond H. Young
发明人： Mitchell J. Willis , Sanjay Behl , Raymond H. Young
IPC分类号： C02F1/54 , C02F1/56 , B01D37/03
CPC分类号： C02F1/56 , C02F1/54
摘要： A process for filtering kaolin clay slurries in the presence of a filter aid which increases the percent solids in the filter cake, decreases the product solids in the waste filtrate, increases the rate of filtration, and yet does not interfere with redispersal of the filter cake after filtration. The process utilizes high molecular weight, highly anionic polyacrylic acid homopolymers or copolymers, or water soluble salts thereof, as filter aids for thickening and dewatering kaolin clay slurries. The flocculated clay may be redispersed after the separation process by normal means, such as the addition of low molecular weight anionic polymers with mixing.
摘要翻译：在助滤剂存在下过滤高岭土泥浆的方法，其增加滤饼中的固体百分比，降低废滤液中的产物固体，增加过滤速率，并且不会干扰滤饼的再分散过滤后。该方法使用高分子量，高度阴离子的聚丙烯酸均聚物或共聚物或其水溶性盐作为增粘和脱水高岭土粘土浆料的助滤剂。絮凝的粘土可以通过常规方法在分离过程后再分散，例如混合加入低分子量阴离子聚合物。

6. 发明授权

US5938833A Chemical process for fractionating mineral particles based on particle size 失效
$Chemical process for fractionating mineral particles based on particle size$
标题翻译：基于粒度分级矿物颗粒的化学工艺
公开(公告)号：US5938833A
公开(公告)日：1999-08-17
申请号：US891666
申请日：1997-07-11
申请人： Mitchell J. Willis , Sanjay Behl , Raymond H. Young
发明人： Mitchell J. Willis , Sanjay Behl , Raymond H. Young
IPC分类号： B03D3/06 , C09C1/42 , D21H19/40 , D21H21/52 , B03B1/00
CPC分类号： D21H19/40 , B03D3/06 , C09C1/42 , C01P2004/51 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/22 , C01P2006/60 , C01P2006/80 , D21H21/52
摘要： This invention pertains to the use of a combination of polyvalent cations, clay dispersant and high molecular weight anionic polymer to preferentially remove colloidal fines (slimes) from a kaolin slurry, leaving the remainder of the kaolin in the slurry in the form of a coherent gelatinous mass.
摘要翻译：本发明涉及使用多价阳离子，粘土分散剂和高分子量阴离子聚合物的组合来优先从高岭土浆料中去除胶体细粉（泥浆），将剩余的高岭土留在浆液中，形式为相干凝胶状质量

7. 发明授权

US5688315A Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process 失效
标题翻译：在高岭土纯化过程中作为絮凝副产物获得的有色的含钛涂层颜料
公开(公告)号：US5688315A
公开(公告)日：1997-11-18
申请号：US688571
申请日：1996-07-31
申请人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
发明人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
IPC分类号： C09C1/00 , C09C1/42 , D21H19/38 , C09C1/36
CPC分类号： D21H19/38 , C09C1/0084 , C09C1/42 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/22 , C01P2006/60 , C01P2006/80
摘要： Described is a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the mixture of minerals is preconditioned for selective flocculation with an anionic polymer by addition of both a fatty acid such as oleic acid and source of polyvalent cation such as calcium chloride. The fatty acid and cation of the salt selectively coat the component of the mixture that is subsequently flocculated with the anionic polymer. A polyacrylate salt dispersant is preferably used in the process. The invention is especially adapted to the separation of colored titaniferous impurities from kaolin clay in which case both a white purified kaolin product and a strongly flocculated dun-colored titania/kaolin mixture are recovered and then dispersed producing a material useful as a paper coating pigment.
摘要翻译：描述了将细碎矿物的混合物分离成其成分的方法。特别地，本发明涉及通过新的选择性絮凝技术实现这种分离的方法，其中通过添加脂肪酸如油酸和/或阴离子聚合物预先配制含有矿物混合物的分散的水性纸浆以用于与阴离子聚合物的选择性絮凝，多价阳离子源如氯化钙。盐的脂肪酸和阳离子选择性地涂覆随后与阴离子聚合物絮凝的混合物的组分。在该方法中优选使用聚丙烯酸盐分散剂。本发明特别适用于从高岭土中分离着色的含钛杂质，在这种情况下，回收白色纯化的高岭土产品和强烈絮凝的二色二氧化钛/高岭土混合物，然后分散制备用作纸涂层颜料的材料。

8. 发明授权

US5584394A Colored titaniferous coating pigment obtained as a flocculated by-product in a kaolin purification process 失效
标题翻译：在高岭土纯化过程中作为絮凝副产物获得的有色的含钛涂层颜料
公开(公告)号：US5584394A
公开(公告)日：1996-12-17
申请号：US404772
申请日：1995-03-15
申请人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
发明人： Sanjay Behl , Mitchell J. Willis , Raymond H. Young
IPC分类号： C09C1/00 , C09C1/42 , D21H19/38 , B03B1/00
CPC分类号： D21H19/38 , C09C1/0084 , C09C1/42 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2006/22 , C01P2006/60 , C01P2006/80
摘要： Described is a process for separating a mixture of finely divided minerals into constituents thereof. In particular, the invention relates to a procedure for effecting such separation by a novel selective flocculation technique wherein a dispersed aqueous pulp containing the mixture of minerals is preconditioned for selective flocculation with an anionic polymer by addition of both a fatty acid such as oleic acid and source of polyvalent cation such as calcium chloride. The fatty acid and cation of the salt selectively coat the component of the mixture that is subsequently flocculated with the anionic polymer. A polyacrylate salt dispersant is preferably used in the process. The invention is especially adapted to the separation of colored titaniferous impurities from kaolin clay in which case both a white purified kaolin product and a strongly flocculated dun-colored titania/kaolin mixture are recovered and then dispersed producing a material useful as a paper coating pigment.
摘要翻译：描述了将细碎矿物的混合物分离成其成分的方法。特别地，本发明涉及通过新的选择性絮凝技术进行这种分离的方法，其中通过添加脂肪酸如油酸和/或其盐，预先调节含有矿物混合物的分散的水性纸浆与阴离子聚合物的选择性絮凝，多价阳离子源如氯化钙。盐的脂肪酸和阳离子选择性地涂覆随后与阴离子聚合物絮凝的混合物的组分。在该方法中优选使用聚丙烯酸盐分散剂。本发明特别适用于从高岭土中分离着色的含钛杂质，在这种情况下，回收白色纯化的高岭土产品和强烈絮凝的二色二氧化钛/高岭土混合物，然后分散制备用作纸涂料颜料的材料。

9. 发明授权

US4781298A Process for beneficiating clay at high solids 失效
标题翻译：高固含量粘土的工艺
公开(公告)号：US4781298A
公开(公告)日：1988-11-01
申请号：US938205
申请日：1986-12-03
申请人： Glen A. Hemstock , Mitchell J. Willis
发明人： Glen A. Hemstock , Mitchell J. Willis
IPC分类号： B03C1/032 , B03C1/02
CPC分类号： B03C1/032
摘要： A process for the wet processing of kaolin clay which includes a step for physically removing discrete particles of colored impurities by high gradient magnetic separation (HGMS) in which all processing steps including HGMS are carried out with the feed clay slurry at high solids, above 50%, and the magnetically purified clay slurry is also recovered at high solids, above 50%. A feature of the invention is that the HGMS unit is operated in a novel manner such as to avoid the dilution of the magnetically purified clay slurry with water during all stages of HGMS treatment without adverse effect on the yield of magnetically purified clay.
摘要翻译：一种用于湿法加工高岭土的方法，其包括通过高梯度磁选（HGMS）物理去除有色杂质的离散颗粒的步骤，其中所有包括HGMS的加工步骤都用高固体的进料粘土浆料进行，高于50 ％，并且磁性纯化的粘土浆料也以高固体回收率高于50％。本发明的一个特征是HGMS单元以新颖的方式操作，以避免在HGMS处理的所有阶段期间用水稀释磁性纯化的粘土浆料，而对磁性纯化粘土的产率没有不利影响。

10. 发明授权

US5411587A Paper coating kaolin pigments their preparation and use 失效
标题翻译：纸涂层高岭土颜料的制备和使用
公开(公告)号：US5411587A
公开(公告)日：1995-05-02
申请号：US211674
申请日：1994-04-12
申请人： Mitchell J. Willis , Patrick D. Canavan , Fred M. Allen , Jordan K. Lampert
发明人： Mitchell J. Willis , Patrick D. Canavan , Fred M. Allen , Jordan K. Lampert
IPC分类号： C09C1/40 , C04B33/04 , C09C1/28 , C09C1/42 , C09C3/04 , D21H17/68 , D21H19/40 , C09C3/06
CPC分类号： D21H19/40 , C09C1/42 , C01P2004/20 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/12 , C01P2006/22 , C01P2006/60 , C01P2006/80 , Y10T428/2438 , Y10T428/24455 , Y10T428/31993
摘要： Paper coating pigments comprising mechanically delaminated kaolin particles. The pigments possess the opacification, smoothness and printability advantages of conventional delaminated kaolin pigments but have desirably low viscosity and gloss not characteristic of conventional delaminated kaolin pigments. Crude kaolins of specified physical characteristics for production of these pigments by controlled delamination.
摘要翻译：纸涂层颜料包括机械分层的高岭土颗粒。这些颜料具有常规分层高岭土颜料的不透明度，光滑度和可印刷性的优点，但是具有理想的低粘度和光泽度不是常规分层高岭土颜料的特征。通过控制分层生产这些颜料的具体物理特性的粗高岭土。

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