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21. 发明授权

US4732748A Finely divided calcium carbonate compositions 失效
标题翻译：细分碳酸钙组合物
公开(公告)号：US4732748A
公开(公告)日：1988-03-22
申请号：US940533
申请日：1986-12-10
申请人： Robert D. Stewart , Norman O. Clark , Yew C. Chang
发明人： Robert D. Stewart , Norman O. Clark , Yew C. Chang
IPC分类号： C01F11/18 , D21H17/67
CPC分类号： C01F11/185 , D21H17/675 , C01P2004/61 , C01P2004/62
摘要： Finely divided, wet-ground, dispersant-free calcium carbonate filler or pigment compositions are disclosed in which the particles of calcium carbonate are distributed in particular amounts in a particular fashion--broadly stated: in fine particle size distribution. Such compositions are useful in aqueous slurry or dry form as opacifying fillers for paper.
摘要翻译：公开了细分，湿地，无分散剂的碳酸钙填料或颜料组合物，其中碳酸钙颗粒以特定的量以特定的量分布 - 广泛地表示为：细粒度分布。这种组合物可用作水性浆料或干燥形式，作为纸张的不透明填料。

22. 发明授权

US4521976A Method of operating a fluidized bed heat exchanger utilizing induced circulation 失效
标题翻译：利用诱导循环操作流化床热交换器的方法
公开(公告)号：US4521976A
公开(公告)日：1985-06-11
申请号：US555119
申请日：1983-11-25
申请人： Robert D. Stewart , Robert L. Gamble
发明人： Robert D. Stewart , Robert L. Gamble
IPC分类号： B01J8/24 , F23C10/12 , F28D13/00 , F26B3/08
CPC分类号： B01J8/1827 , F23C10/12 , F28D13/00
摘要： A method of operating a fluidized bed heat exchanger in which a perforated plate is disposed within a housing for supporting a bed of particulate material which is introduced into the housing through an inlet. Air is passed through the plate to fluidize the particulate material and a drain pipe is provided for discharging the spent material from the bed. The flow rate of air introduced into the bed is increased in a direction across said bed from said inlet to said drain pipe to promote the circulation of the bed materials from the inlet to the drain pipe.
摘要翻译：一种操作流化床热交换器的方法，其中多孔板设置在壳体内，用于支撑通过入口引入壳体的颗粒材料床。空气通过板以使颗粒材料流态化，并且设置排水管以将废料从床上排出。引入床中的空气的流量在从所述入口到所述排水管的所述床上的方向上增加，以促进床材料从入口到排水管的循环。

23. 发明授权

US4274956A Extraction process using solid stabilized emulsions 失效
标题翻译：使用固体稳定乳液的提取方法
公开(公告)号：US4274956A
公开(公告)日：1981-06-23
申请号：US2481
申请日：1979-01-10
申请人： Robert D. Stewart
发明人： Robert D. Stewart
IPC分类号： B01D11/04 , B01D61/40 , B01D11/00
CPC分类号： B01D11/0415 , B01D61/40 , Y10S423/14
摘要： A process for transfer by extraction, of at least one species from a fluid phase to a first liquid phase receptive to such species, comprises intimately contacting the fluid phase with an emulsion of the first liquid phase in a second liquid phase which is permeable with respect to such species and substantially immiscible in the first liquid phase. The emulsion is stabilized by the second liquid phase containing at least one substantially insoluble particulate solid which is substantially non-reactive to constituents contained in each of such phases in an amount sufficient to form a stable emulsion. Transfer of the species is from the fluid phase through the second solids--containing liquid phase to the first liquid phase.In one embodiment, the first liquid phase is lean with respect to the species to be extracted. In another embodiment, mass action is utilized to maintain a driving force by counter-transport of a different ion.Where all phases are liquid, one phase is regarded as the bulk phase and the first liquid phase termed the internal phase is contained in a surrounding membrane of the solids-containing second liquid phase or the external phase. Transfer may be from the bulk to the first liquid phase or vice versa. The bulk and internal phases are normally aqueous in nature.
摘要翻译：通过从流体相至至少一种物质从流体相转移到接受这种物质的第一液相的转移方法包括使液相与第一液相的乳液紧密接触，所述第二液相在第二液相中是可渗透的并且在第一液相中基本上不混溶。乳液通过含有至少一种基本上不溶的微粒固体的第二液相来稳定，该固体与足以形成稳定乳液的量的每一相中所含的组分基本上不反应。物质的转移是从流体相通过第二含固体液相到第一液相。在一个实施方案中，第一液相相对于要提取的物质是稀的。在另一个实施例中，利用质量作用来通过反向输送不同的离子来维持驱动力。在所有相是液体的情况下，一相被认为是体相，称为内相的第一液相包含在含固体的第二液相或外相的周围膜中。转移可能是从体积到第一液相，反之亦然。本体和内部相通常是水性的。

24. 发明授权

US4268395A Extraction by solid stabilized emulsions 失效
标题翻译：通过固体稳定乳液提取
公开(公告)号：US4268395A
公开(公告)日：1981-05-19
申请号：US948618
申请日：1978-10-04
申请人： Robert D. Stewart
发明人： Robert D. Stewart
IPC分类号： B01D11/04 , B01D61/40 , B01D11/00
CPC分类号： B01D61/40 , B01D11/0415 , Y10S423/14
摘要： A process for transfer by extraction, of at least one species from a fluid phase to a first liquid phase receptive to such species, comprises intimately contacting the fluid phase with an emulsion of the first liquid phase in a second liquid phase which is permeable with respect to such species and substantially immiscible in the first liquid phase. The emulsion is stabilized by the second liquid phase containing at least one substantially insoluble particulate solid which is substantially non-reactive to constituents contained in each of such phases in an amount sufficient to form a stable emulsion. Transfer of the species is from the fluid phase through the second solids-containing liquid phase to the first liquid phase.In one embodiment, the first liquid phase is lean with respect to the species to be extracted. In another embodiment, mass action is utilized to maintain a driving force by counter-transport of a different ion.Where all phases are liquid, one phase is regarded as the bulk phase and the first liquid phase termed the internal phase is contained in a surrounding membrane of the solids-containing second liquid phase or the external phase. Transfer may be from the bulk to the first liquid phase or vice versa. The bulk and internal phases are normally aqueous in nature.
摘要翻译：通过从流体相至至少一种物质从流体相转移到接受这种物质的第一液相的转移方法包括使液相与第一液相的乳液紧密接触，所述第二液相在第二液相中是可渗透的并且在第一液相中基本上不混溶。乳液通过含有至少一种基本上不溶的微粒固体的第二液相来稳定，该固体与足以形成稳定乳液的量的每一相中所含的组分基本上不反应。物质的转移是从流体相通过第二含固体液相到第一液相。在一个实施方案中，第一液相相对于要提取的物质是稀的。在另一个实施例中，利用质量作用来通过反向输送不同的离子来维持驱动力。在所有相是液体的情况下，一相被认为是体相，称为内相的第一液相包含在含固体的第二液相或外相的周围膜中。转移可能是从体积到第一液相，反之亦然。本体和内部相通常是水性的。

25. 发明授权

US4133381A Contacting treated oil shale with carbon dioxide to inhibit leaching 失效
标题翻译：将经处理的油页岩与二氧化碳接触以抑制浸出
公开(公告)号：US4133381A
公开(公告)日：1979-01-09
申请号：US864453
申请日：1977-12-27
申请人： Robert D. Stewart
发明人： Robert D. Stewart
IPC分类号： E21B33/138 , E21B43/247 , E21B43/24 , C01F11/18
CPC分类号： E21B33/138 , E21B43/247 , E21C41/24 , Y10S208/951
摘要： Leaching of water-soluble constituents from particles containing treated oil shale and including oxides of alkaline earth metals, such as particles in an in situ oil shale retort, is inhibited by contacting the particles with carbon dioxide in the presence of water for a sufficient time to produce a substantially water-insoluble and/or impermeable barrier of carbonates of alkaline earth metals at the surface of the particles.
摘要翻译：含水处理油页岩和包括碱土金属氧化物（如原位油页岩蒸馏物中的颗粒）的水溶性成分的浸出是通过在水存在下将颗粒与二氧化碳接触足够的时间来抑制的在颗粒表面产生基本上不溶于水和/或不渗透的碱土金属碳酸盐的屏障。

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