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    • 1. 发明授权
    • Process for preparing pitches
    • 制作球场的过程
    • US5182011A
    • 1993-01-26
    • US616836
    • 1990-11-21
    • Masatoshi TsuchitaniMakoto TamuraKiyotaka SuzukiShuji OkadaRyoichi NakajimaSakae Naito
    • Masatoshi TsuchitaniMakoto TamuraKiyotaka SuzukiShuji OkadaRyoichi NakajimaSakae Naito
    • C10C1/00C10C3/00
    • C10C3/00C10C1/00
    • Commercially attractive continuous processes for the preparation of mesophase pitches for manufacturing high-performance carbon fibers are disclosed. One feature resides in that conversion of a pitch into a mesophase pitch is conducted continuously by using a unique continuous dispersion-heat-treating apparatus. The other feature resides in that the raw material for hydrogenation treatment which is a pretreatment preceeding to the final heat treatment for the production of a mesophase pitch, is prepared by using a heavy oil or pitch having substantially no BTX-insoluble material as the starting raw material, subjecting the raw material to a simple four-step treatment of (1) a continuous heat treatment in a tubular heater, (2) a distillation operation, (3) a BTX-solvent extraction and (4) a distillation operation; while recycling a soluble component obtained in the step (4) to the heat treatment of step (1) and recovering a BTX-solvent insoluble component formed in step (3) as the material for the hydrogenation treatment. This feature can provide a significant increase in the yield of a mesophase pitch. Furthermore, unexpectedly, the recycle of the soluble component into the heat treatment of step (1) is helpful to improve the characteristics of the ultimate products, i.e., carbon fibers or graphite fibers. Combination of the first and the second features, of course, can provide a better commercial success. In fact, the process of the present invention can provide a carbon fiber having a tensile strength of more than 300 kg/mm.sup.2 and a graphite fiber having a tensile strength of more than 400 kg/mm.sup.2 and a modulus of elasticity of more than 60 ton/mm.sup.2. Processes with minor modifications to the above are also disclosed.
    • 公开了用于制备用于制造高性能碳纤维的中间相沥青的商业上有吸引力的连续方法。 一个特征在于,通过使用独特的连续分散热处理装置连续地进行沥青转化为中间相沥青。 另一个特征在于,通过使用基本上不含BTX不溶性材料的重油或沥青作为起始原料,制备作为用于生产中间相沥青的最终热处理之前的预处理的氢化处理原料 材料,对原料进行简单的四步处理(1)在管式加热器中的连续热处理,(2)蒸馏操作,(3)BTX-溶剂萃取和(4)蒸馏操作; 同时将步骤(4)中获得的可溶组分再循环到步骤(1)的热处理中,并回收步骤(3)中形成的BTX-溶剂不溶组分作为氢化处理材料。 该特征可以显着提高中间相沥青的产率。 此外,意想不到的是,将可溶组分再循环到步骤(1)的热处理中有助于改善最终产物即碳纤维或石墨纤维的特性。 结合第一和​​第二功能,当然可以提供更好的商业成功。 事实上,本发明的方法可以提供拉伸强度大于300kg / mm 2的碳纤维和拉伸强度大于400kg / mm 2的石墨纤维和大于60吨的弹性模量 / mm2。 还公开了对上述的微小修改的处理。
    • 2. 发明授权
    • Process for preparing pitches
    • 制备勺子的方法
    • US5091072A
    • 1992-02-25
    • US504723
    • 1990-04-03
    • Masatoshi TsuchitaniMakoto TamuraKiyotaka SuzukiSjuji OkadaRyoichi NakajimaSakae Naito
    • Masatoshi TsuchitaniMakoto TamuraKiyotaka SuzukiSjuji OkadaRyoichi NakajimaSakae Naito
    • C10C1/00C10C3/00
    • C10C1/00C10C3/00
    • Commercially attractive continuous processes for the preparation of mesophase pitches for manufacturing high-performance carbon fibers are disclosed. One feature resides in that conversion of a pitch into a mesophase pitch is conducted continuously by using a unique continuous dispersion-heat-treating apparatus. The other feature resides in that the raw material for hydrogenation treatment which is a pretreatment preceeding to the final heat treatment for the production of a mesophase pitch, is prepared by using a heavy oil or pitch having substantially no BTX-insoluble material as the starting raw material, subjecting the raw material to a simple four-step treatment of (1) a continuous heat treatment in a tubular heater, (2) a distillation operation, (3) a BTX-solvent extraction and (4) a distillation operation; while recycling a soluble component obtained in the step (4) to the heat treatment of step (1) and recovering a BTX-solvent insoluble component formed in step (3) as the material for the hydrogenation treatment. This feature can provide a significant increase in the yield of a mesophase pitch. Furthermore, unexpectedly, the recycle of the soluble component into the heat treatment of step (1) is helpful to improve the characteristics of the ultimate products, i.e., carbon fibers or graphite fibers. Combination of the first and the second features, of course, can provide a better commercial success. In fact, the process of the present invention can provide a carbon fiber having a tensile strength of more than 300 kg/mm.sup.2 and a graphite fiber having a tensile strength of more than 400 kg/mm.sup.2 and a modulus of elasticity of no more than 60 ton/mm.sup.2. Processes with minor modifications to the above are also disclosed.
    • 4. 发明授权
    • Process for manufacturing fine particles of pitch with a high softening
point
    • 用于制造具有高软化点的沥青微细颗粒的方法
    • US5736030A
    • 1998-04-07
    • US565116
    • 1995-11-30
    • Masatoshi TsuchitaniKiyotaka SuzukiRyoichi NakajimaTomohiko Sato
    • Masatoshi TsuchitaniKiyotaka SuzukiRyoichi NakajimaTomohiko Sato
    • B01F3/08C10C3/00C10C3/16C10C1/00
    • C10C3/00
    • A process for manufacturing fine particles or powder of pitch with a high softening point from a heavy oil raw material which is liquid at an ambient temperature or pitch having a relatively low softening point is disclosed. Fine particles of pitch with a high softening point are useful materials and can be used as carbon materials for various applications. A characteristic feature of the process resides in the utilization of emulsion of the heavy oil raw material. That is, it is disclosed a process for manufacturing fine particles of pitch with a high softening point comprising, a first step of stirring a raw material heavy oil in the presence of a surface-active agent and water by a stirring method which can provide a shearing force to produce an emulsion of fine spherical pitch particles dispersed in water, wherein the raw material heavy oil is a liquid having a viscosity of 1,000 poise or less at the stirring condition; a second step comprising causing the emulsion obtained in the first step to come in contact with an extracting organic solvent to extract and remove light components from the fine spherical particles in the emulsion, thereby obtaining fine particles of pitch with an increased softening point; and a third step comprising separating and recovering fine particles of pitch with an increased softening point.
    • 公开了一种制造具有高软化点的细小颗粒或具有软化点的沥青粉末的方法,该重油原料是环境温度下的液体或具有较低软化点的沥青。 具有高软化点的沥青微粒是有用的材料,可用作各种应用的碳材料。 该方法的特征在于重油原料的乳液的利用。 也就是说,公开了一种制造具有高软化点的沥青的微细颗粒的方法,包括在表面活性剂和水的存在下搅拌原料重油的第一步骤,通过搅拌方法可以提供 剪切力产生分散在水中的细球形沥青颗粒的乳液,其中原料重油是在搅拌条件下具有1,000泊或更低粘度的液体; 第二步骤包括使第一步骤中获得的乳液与萃取有机溶剂接触以从乳液中的细球形颗粒提取和去除轻组分,从而获得具有增加的软化点的细沥青颗粒; 并且第三步骤包括以增加的软化点分离和回收细小的沥青颗粒。
    • 5. 发明授权
    • Process for preparing carbonaceous material carrying ultrafinely dispersed metal
    • 制备含有超细分散金属的碳质材料的方法
    • US06194344B1
    • 2001-02-27
    • US09414288
    • 1999-10-07
    • Masatoshi TsuchitaniRyoichi NakajimaKiyotaka SuzukiHitoshi ShigematsuKatsutoshi Nishitani
    • Masatoshi TsuchitaniRyoichi NakajimaKiyotaka SuzukiHitoshi ShigematsuKatsutoshi Nishitani
    • B01J2118
    • B01J21/18B01J35/002B01J35/023B01J35/1019B01J35/1038B01J37/084C04B38/0022C04B2111/0081C10C3/06C04B35/52C04B35/56
    • A process for the preparation of a high-softening-point pitch rich in mesopores having a softening point measured by temperature gradient method of 150° C. or higher, a weight loss by heating up to 300° C. of 5 wt. % or less and mesopores of 100 mm3/g or greater, in terms of minute pore volume calculated by the Dollimore-Heal method, and a process for making carbonaceous materials carrying metal thereon are disclosed. The high-softening-point pitch rich in mesopores can easily provide carbonaceous material carrying metal thereon by using no oxidizing agent such as nitric acid, and, therefore, the high-softening-point pitch rich in mesopores is especially suitable for the production of carbonaceous materials carrying metal thereon or highly crystalline graphitized carbonaceous materials in a short heating time. The process for the production of a high-softening-point pitch rich in mesopores comprises forming micro-shaped carbonaceous materials having a size of 100 &mgr;m or less, and contacting the micro-shaped carbonaceous materials with an extracting organic solvent so as to remove 20-90 wt. % of light components from the micro-shaped carbonaceous materials. A carbonaceous material carrying metal thereon can easily be prepared by contacting the high-softening point pitch rich in mesopores with an aqueous solution of an anionic surface active agent, and then contacting the material treated with the surface active agent with an aqueous solution of metal salts.
    • 制备富含中温孔的高软化点沥青的方法,其具有通过温度梯度法测定的软化点为150℃以上,通过加热至300℃的重量减少为5重量% %以下,中孔为100mm 3 / g以上,以通过Dollimore-Heal法计算的微细孔容积,以及在其上载持金属的碳质材料的制造方法。 富含中孔的高软化点沥青可以容易地通过不使用硝酸等氧化剂提供携带金属的碳质材料,因此,富孔介质的高软化点沥青特别适用于生产碳质 在短时间内在其上携带金属的材料或高度结晶的石墨化碳质材料。 用于生产富中孔的高软化点沥青的方法包括形成尺寸为100μm或更小的微型碳质材料,并使微型碳质材料与萃取有机溶剂接触以除去20 -90重量% 来自微型碳质材料的轻组分的%。 通过使富含中孔的高软化点沥青与阴离子表面活性剂的水溶液接触,然后使用表面活性剂处理的材料与金属盐水溶液接触,可容易地制备载有金属的碳质材料 。
    • 6. 发明申请
    • Apparatus for and method of erasing residual radiation image
    • 擦除残留辐射图像的方法和方法
    • US20070045576A1
    • 2007-03-01
    • US11506903
    • 2006-08-21
    • Kiyotaka Suzuki
    • Kiyotaka Suzuki
    • G01N23/04
    • G01N23/04G01T1/2016
    • A phototimer detects the dose of an X-ray radiation that has passed through a stimulable phosphor panel, and a stored quantity calculator calculates the quantity of radiation energy stored in the stimulable phosphor panel. An irradiation time ratio setting unit reads an irradiation time ratio from an irradiation time ratio storage unit according to the calculated quantity of radiation energy, and sets the read irradiation time ratio in an erasing unit. Based on the irradiation time ratio, the erasing unit applies erasing light including a radiation in a short wavelength range to the stimulable phosphor panel and thereafter applies erasing light comprising only a radiation in a long wavelength range to the stimulable phosphor panel, thereby erasing a residual radiation image from the stimulable phosphor panel.
    • 光照仪检测已经通过可刺激的荧光体面板的X射线辐射的剂量,并且存储量计算器计算存储在可刺激的荧光体面板中的辐射能量的量。 照射时间比设定单元根据计算出的辐射能量从照射时间比率存储单元读取照射时间比,并将读取的照射时间比设定在擦除单元中。 基于照射时间比,擦除单元将包括在短波长范围内的辐射的擦除光施加到可刺激的荧光体面板,然后将仅包括长波长范围的辐射的擦除光施加到可刺激的荧光体面板,从而擦除残留 来自可刺激的荧光粉板的辐射图像。