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1.
公开(公告)号:US4773985A
公开(公告)日:1988-09-27
申请号:US723121
申请日:1985-04-12
摘要: Mesophase formation is optimized in graphite and coke precursors by a process which includes determining the values of critical chemical parameters for proposed precursors, modifying the precursors by adjusting such critical chemical parameters as oxygen content, aromaticity and functionality to within certain predetermined optimal limits and treating the resulting modified precursors to form mesophase. Oxygen content can be adjusted by oxidation or reduction of the precursor. Aromaticity can be adjusted by suitable heat treatment. Functionality can be adjusted by derivatization.
摘要翻译: 中间相形成在石墨和焦炭前体中通过包括确定所提出的前体的关键化学参数的值的方法进行了优化,通过将氧含量,芳香性和官能度的关键化学参数调整到某些预定的最优极限内来修饰前体,并处理 导致形成中间相的改性前体。 可以通过氧化还原前体来调节氧含量。 芳香度可以通过适当的热处理来调节。 功能可以通过衍生化进行调整。
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公开(公告)号:US4765885A
公开(公告)日:1988-08-23
申请号:US59080
申请日:1987-06-08
申请人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh F. Yen
发明人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh F. Yen
IPC分类号: C10G1/04
摘要: Hydrocarbon liquids are recovered from carbonaceous materials such as tar sands utilizing a separation reagent formed in situ by reacting polar resin components of tar sands with an inorganic base such as sodium silicate in sonicated aqueous solution in absence of an organic solvent to form a surfactant. Under the influence of sonication a microemulsion of polar-external micelles forms.When tar sands are added to the sonicated separation reagent, the surfactant penetrates the bitumen. Metal ions complex with the polar groups and aid in removing the bitumen from the sand particles. The polar-organic asphaltene materials are carried into the aqueous phase by the anion and stabilized within the micelle structure. The lighter, non-polar hydrocarbon oil fraction separate from the emulsion and rise to the top and is recovered by skimming. The heavier asphaltenes and preasphaltenes complex with the polyvalent metals to form charcoal-like agglomerates which settle to the bottom of the treatment tank. The rate of separation of bitumen can be significantly increased by adding a small amount of a free radical initiator such as benzoyl peroxide to the separation reagent.
摘要翻译: 烃类液体是从含碳物质如沥青砂中回收的,利用在无有机溶剂的条件下,将超临界水溶液中的焦油砂的极性树脂成分与无机碱如硅酸钠在原位形成的分离剂一起回收,形成表面活性剂。 在超声处理的影响下,形成极性 - 外部胶束的微乳液。 当沥青砂添加到超声处理的分离试剂中时,表面活性剂渗透沥青。 金属离子与极性基团复合,有助于从砂粒中除去沥青。 极性有机沥青质材料通过阴离子运送到水相中并稳定在胶束结构内。 较轻的非极性烃油馏分与乳液分离并升至顶部,并通过撇去回收。 较重的沥青质和预沥青质与多价金属复合,形成沉淀到处理槽底部的类似炭的附聚物。 通过向分离试剂中加入少量的过氧化苯甲酰等自由基引发剂可以显着提高沥青的分离速度。
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公开(公告)号:US5017281A
公开(公告)日:1991-05-21
申请号:US358636
申请日:1989-05-30
申请人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh F. Yen
发明人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh F. Yen
CPC分类号: B01D11/0265 , C10G1/04 , C10G1/047
摘要: Hydrocarbon liquids are recovered from carbonaceous materials such as tar sands utilizing a separation reagent formed in situ by reacting polar resin components of tar sands with an inorganic base such as sodium silicate in sonicated aqueous solution in absence of an organic solvent to form a surfactant. Under the influence of sonication a microemulsion of polar-external micelles forms. The polar groups can associate with anions, especially polyanions such as silicate and act in a membrane mimetic manner to form vesicles. Cavities can form in the surfactant resin molecule that complex with guest cations such as titanium or other metals from the tar sand.When tar sands are added to the sonicated separation reagent, the surfactant penetrates the bitumen. Metal ions complex with the polar groups and aid in removing the bitument from the sand particles. The polarorganic asphaltene materials are carried into the aqueous phase by the anion and stabilized within the micelle structure. The lighter, non-polar hydrocarbon oil fraction separate from the emulsion and rise to the top and are recovered by skimming. The heavier asphaltenes and preasphaltenes complex with the polyvalent metals to form charcoal-like agglomerates which settle to the bottom of the treatment tank. The separation reagent forms during the reaction and can reach a concentration capable of dissolving bitumen. The separation reagent can be recovered and used in other processes after removal and recovery of the clay. The separation reagent must be substantially diluted after being recycled and reused to reduce solvation properties.
摘要翻译: 烃类液体是从含碳物质如沥青砂中回收的,利用在无有机溶剂的条件下,将超临界水溶液中的焦油砂的极性树脂成分与无机碱如硅酸钠在原位形成的分离剂一起回收,形成表面活性剂。 在超声处理的影响下,形成极性 - 外部胶束的微乳液。 极性基团可以与阴离子,特别是聚阴离子如硅酸盐结合,并以膜模拟方式起作用以形成囊泡。 可以在表面活性剂树脂分子中形成空穴,其与来自焦油砂的客体阳离子如钛或其它金属络合。 当沥青砂添加到超声处理的分离试剂中时,表面活性剂渗透沥青。 金属离子与极性基团复合,有助于从砂粒中除去废料。 极性有机沥青质材料通过阴离子进入水相并稳定在胶束结构内。 较轻的非极性烃油馏分与乳液分离并升至顶部,并通过撇去回收。 较重的沥青质和预沥青质与多价金属复合,形成沉淀到处理槽底部的类似炭的附聚物。 在反应过程中形成分离剂,并能达到能够溶解沥青的浓度。 在除去和回收粘土之后,分离试剂可以被回收并用于其它工艺中。 分离试剂在回收再利用后必须基本稀释,以降低溶剂化性能。
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4.
公开(公告)号:US4891131A
公开(公告)日:1990-01-02
申请号:US684945
申请日:1984-12-21
申请人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh Fu Yen
发明人: Mohammad-Ali Sadeghi , Kazem Sadeghi , Jih-Fen Kuo , Long-Kuan Jang , Teh Fu Yen
IPC分类号: C10G1/04
摘要: Hydrocarbon liquids are recovered from carbonaceous materials such as tar sands utilizing a separation reagent formed in situ by reacting polar resin components of tar sands with an inorganic base such as sodium silicate in sonicated aqueous solution in absence of an organic solvent to form a surfactant.When tar sands are added to the sonicated separation reagent, the surfactant penetrates the bitumen which aids in removing the bitumen from the sand particles. The lighter, non-polar hydrocarbon oil fraction separate from the emulsion and rise to the top and are recovered by skimming. The heavier asphaltenes and preasphaltenes complex with the polyvalent metals to form charcoal-like agglomerates which settle to the bottom of the treatment tank. The separation reagent forms during the reaction and can reach a concentration capable of dissolving bitumen. The separation reagent can be recovered and used in other processes after removal and recovery of the clay. The separation reagent must be substantially diluted after being recycled and reused to reduce solvation properties.
摘要翻译: 烃类液体是从碳质材料如焦油砂中回收的,利用在无有机溶剂的条件下,将超临界水溶液中的焦油砂的极性树脂组分与无机碱如硅酸钠在原位形成的分离剂回收,形成表面活性剂。 当沥青砂被加入到超声处理的分离试剂中时,表面活性剂渗入沥青中,有助于从砂粒中除去沥青。 较轻的非极性烃油馏分与乳液分离并升至顶部,并通过撇去回收。 较重的沥青质和预沥青质与多价金属复合,形成沉淀到处理槽底部的类似炭的附聚物。 在反应过程中形成分离剂,并能达到能够溶解沥青的浓度。 在除去和回收粘土之后,分离试剂可以被回收并用于其它工艺中。 分离试剂在回收再利用后必须基本稀释,以降低溶剂化性能。
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