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    • 3. 发明授权
    • Treatment of carbonaceous materials
    • 碳质材料的处理
    • US4765885A
    • 1988-08-23
    • US59080
    • 1987-06-08
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh F. Yen
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh F. Yen
    • C10G1/04
    • C10G1/04C10G1/047
    • 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.
    • 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。
    • 4. 发明授权
    • Sonication method and reagent for treatment of carbonaceous materials
    • 超声处理方法和碳质材料处理试剂
    • US4891131A
    • 1990-01-02
    • US684945
    • 1984-12-21
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh Fu Yen
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh Fu Yen
    • C10G1/04
    • C10G1/047C10G1/04
    • 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.
    • 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。
    • 6. 发明授权
    • Treatment of carbonaceous materials
    • 碳质材料的处理
    • US5017281A
    • 1991-05-21
    • US358636
    • 1989-05-30
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh F. Yen
    • Mohammad-Ali SadeghiKazem SadeghiJih-Fen KuoLong-Kuan JangTeh F. Yen
    • B01D11/02C10G1/04
    • B01D11/0265C10G1/04C10G1/047
    • 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.
    • 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。
    • 9. 发明授权
    • Method and apparatus for poly gate CD control
    • 多门CD控制方法和装置
    • US07035696B1
    • 2006-04-25
    • US10189930
    • 2002-07-03
    • Ali SadeghiSukesh PatelMark FreelandOle Krogh
    • Ali SadeghiSukesh PatelMark FreelandOle Krogh
    • G06F19/00
    • G05B17/02
    • Systems and methods are provided that facilitate semiconductor processing, including etch processes. The invention provides real-time two-dimensional etch rate control. Prior to starting an etch process, a control model is selected that relates to the etch process. A formula or function description is developed from the model and solved to obtain process parameter values that are predicted to produce the desired etch rates. During the fabrication etch process, critical dimension measurements of a polysilicon gate are obtained. From these measurements, the etch process is modified so as to achieve a desired horizontal etch rate and a desired vertical etch rate. The etch process results in a polysilicon gate having a desired rectangular profile.
    • 提供了促进半导体处理(包括蚀刻工艺)的系统和方法。 本发明提供实时二维蚀刻速率控制。 在开始蚀刻工艺之前,选择与蚀刻工艺相关的控制模型。 公式或函数描述是从模型开发出来的,并被解决以获得被预测产生期望的蚀刻速率的工艺参数值。 在制造蚀刻工艺期间,获得多晶硅栅极的临界尺寸测量。 从这些测量中,蚀刻工艺被修改以便实现期望的水平蚀刻速率和期望的垂直蚀刻速率。 蚀刻工艺导致具有期望的矩形轮廓的多晶硅栅极。