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公开(公告)号：US4664774A
公开(公告)日：1987-05-12
申请号：US703252
申请日：1985-02-20
CPC分类号： C10C3/04
摘要： A novel coal tar based, low solids content, pitch is produced by oxidizing a selected coal tar distillation fraction with air to oxygen at elevated temperatures. This pitch is applicable to end use in which low solids content is desirable. Specifically it may be advantageously applied to the impregnation of carbon electrodes. The oxidized selected coal tar based low solids material described is characterized by high carbon yield and higher product density and has a higher in situ coking value and lower sulfur content which make it particularly beneficial when it is used as an impregnating pitch as compared to the currently commercially used petroleum based pitch.
摘要翻译： 通过在升高的温度下将选定的煤焦油蒸馏馏分与空气氧化成氧而产生新的基于煤焦油，固体含量低的沥青。 该间距适用于需要低固体含量的最终用途。 具体地，可以有利地应用于碳电极的浸渍。 所述的氧化选择的煤焦油基低固体物质的特征在于高碳产率和较高的产物密度，并且具有较高的原位焦化值和较低的硫含量，这使得当其与目前相比用作浸渍沥青时特别有利 商用石油沥青。
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2.发明授权
公开(公告)号：US4537635A
公开(公告)日：1985-08-27
申请号：US557784
申请日：1983-12-05
申请人： Edward F. Bart , Arthur S. Chu , George R. Cook
发明人： Edward F. Bart , Arthur S. Chu , George R. Cook
CPC分类号： C08L95/005 , C10C3/04
摘要： A driveway sealer less affected by temperature extremes can be made from an oxidized coal tar distillation cut. The sealer incorporates a middle cut crude distillate which is oxidized to produce a product of desired viscosity. The sealer incorporating this oxidized middle cut is less affected by extremes in weather as compared to regular sealer tar. It has more consistent physical properties. A significant distinguishing characteristic derived from the use of this tar in a driveway sealer is the reduced odor of the resulting sealer. The oxidation (condensation) step is carried out at elevated temperature by sparging copious quantities of air rapidly into the tar at elevated temperatures of the order of about 300.degree. F. to 800.degree. F. (200.degree. C.-430.degree. C.).
摘要翻译： 不受温度极限影响的车道封口机可以由氧化煤焦油蒸馏切割制成。 密封剂包含中间馏分的粗馏出物，其被氧化以产生所需粘度的产物。 与普通封闭焦油相比，结合这种氧化中间切口的密封剂的天气受到极端的影响。 它具有更一致的物理性质。 在车道封口机中使用这种焦油所产生的显着特征是所得密封剂的气味降低。 氧化（冷凝）步骤在高温下通过在大约300°至800°F（200℃至430℃）的高温下将大量空气迅速喷入焦油中进行。 。
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公开(公告)号：US4158036A
公开(公告)日：1979-06-12
申请号：US792749
申请日：1977-05-02
申请人： James Jaffe , Thomas J. O'Rourke , Arthur S. Chu
发明人： James Jaffe , Thomas J. O'Rourke , Arthur S. Chu
IPC分类号： B01J8/18 , B01J8/28 , C07C17/154 , C07C17/156 , C07C17/20 , F28D13/00
CPC分类号： C07C17/206 , B01J8/1836 , B01J8/28 , C07C17/154 , C07C17/156 , B01J2208/00088 , B01J2208/00203 , B01J2208/00495 , B01J2208/0053 , Y02P20/51 , Y10S423/16
摘要： A fluid bed reactor including a first, upstream reaction zone having a fluidized bed of particles and a second, downstream heat recovery zone having a fluidized bed of particles. The reactor is designed adjacent the heat recovery zone to withdraw heat from the heat recovery zone at a temperature lower than the temperature in the reaction zone. In operation, the particles in the heat recovery zone cool and quench the effluent from the reaction zone so as to remove fines and volatile elutriates therefrom, rendering the effluent less corrosive and preventing back or side reactions.
摘要翻译： 一种流化床反应器，包括具有颗粒流化床的第一上游反应区和具有颗粒流化床的第二下游热回收区。 反应器设计在热回收区附近，以便在低于反应区温度的温度下从热回收区提取热量。 在操作中，热回收区中的颗粒冷却并将来自反应区的流出物骤冷，从而从其中除去细粒和挥发性的洗脱液，使得流出物更少腐蚀性并防止反向或副反应。
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公开(公告)号：US4305878A
公开(公告)日：1981-12-15
申请号：US225289
申请日：1981-01-15
申请人： Arthur S. Chu , Frank Scarcello , Emil J. Walerko
发明人： Arthur S. Chu , Frank Scarcello , Emil J. Walerko
IPC分类号： C07D307/12
CPC分类号： C07D307/12
摘要： Mixtures including ethyl tetrahydrofurfuryl ether (ETFE), tetrahydrofurfuryl alcohol (THFA), ethanol and water, and usually also an ethyl halide, are extracted with an aqueous solution of an alkali metal or alkaline earth metal chloride salt until THFA/ETFE ratios below 0.01 or 0.001 are achieved. Thereby THFA and ethanol, each of which are difficult to separate from ETFE by distillation, are removed.
摘要翻译： 包括乙基四氢糠醚（ETFE），四氢糠醇（THFA），乙醇和水，以及通常也是乙基卤的混合物用碱金属或碱土金属氯化物盐水溶液提取，直到THFA / ETFE比低于0.01或 0.001。 因此，除去难以通过蒸馏与ETFE分离的THFA和乙醇。
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