专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5091072A Process for preparing pitches 失效
标题翻译：制备勺子的方法
公开(公告)号：US5091072A
公开(公告)日：1992-02-25
申请号：US504723
申请日：1990-04-03
申请人： Masatoshi Tsuchitani , Makoto Tamura , Kiyotaka Suzuki , Sjuji Okada , Ryoichi Nakajima , Sakae Naito
发明人： Masatoshi Tsuchitani , Makoto Tamura , Kiyotaka Suzuki , Sjuji Okada , Ryoichi Nakajima , Sakae Naito
IPC分类号： C10C1/00 , C10C3/00
CPC分类号： C10C1/00 , C10C3/00
摘要： 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.

2. 发明授权

US5182011A Process for preparing pitches 失效
标题翻译：制作球场的过程
公开(公告)号：US5182011A
公开(公告)日：1993-01-26
申请号：US616836
申请日：1990-11-21
申请人： Masatoshi Tsuchitani , Makoto Tamura , Kiyotaka Suzuki , Shuji Okada , Ryoichi Nakajima , Sakae Naito
发明人： Masatoshi Tsuchitani , Makoto Tamura , Kiyotaka Suzuki , Shuji Okada , Ryoichi Nakajima , Sakae Naito
IPC分类号： C10C1/00 , C10C3/00
CPC分类号： C10C3/00 , C10C1/00
摘要： 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.
摘要翻译：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。

3. 发明授权

US5240613A Process for regenerating clogged filters 失效
标题翻译：再生过滤器的过程
公开(公告)号：US5240613A
公开(公告)日：1993-08-31
申请号：US926816
申请日：1992-08-07
申请人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima , Kensuke Iuchi , Shintaro Hasebe
发明人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima , Kensuke Iuchi , Shintaro Hasebe
IPC分类号： B01D41/04
CPC分类号： B01D41/04 , B01D2201/085
摘要： When preparing carbon artefacts from heavy oils of petroleum or coal origin, removal of undesirable components or recovery of desirable components from raw materials or intermediates is usually required so as to improve the quality of the final products. Such removal or recovery operation is conventionally done by filtration. In the past, regeneration of filters clogged with solid carbonaceous materials inevitably formed by the filtration operations is difficult and troublesome procedures. Herein disclosed is a simple and effective process for regenerating filters clogged with solid carboneceous materials, characterized by treating the filter medium in an aqueous solution of hydrogen peroxide with heating and then optionally conducting ultrasonic washing in water or a solvent. By this simple process, clogged filters can be regenerated completely to show the same filtration performance as new filters.

4. 发明授权

US4820401A Process for the preparation of mesophase pitches 失效
标题翻译：制备中间相沥青的方法
公开(公告)号：US4820401A
公开(公告)日：1989-04-11
申请号：US48376
申请日：1987-05-11
申请人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima
发明人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima
IPC分类号： C10C3/02 , C10C1/16 , C10C1/18 , C10C1/19 , C10C3/00 , C10C3/04 , C10C3/08 , C10C3/10 , D01F9/145 , D01F9/15 , D01F9/155
CPC分类号： D01F9/15 , C10C1/18 , C10C1/19 , C10C3/002 , C10C3/08 , D01F9/155
摘要： A process for the preparation of an excellent mesophase pitch suitable for use as a spinning pitch for the production of high performance carbon fibers is disclosed. The mesophase pitch can satisfy the four remarkable characteristics at the same time, i.e., a softening point of below 320.degree. C. as determined by Mettler method, a mesophase content of above 90% as examined on a polarized microscope, a quinoline insoluble content of less than 20%, and a xylene soluble content of less than 20%. The mesophase pitch is particularly homogeneous and is easily spinnable. The process can be characterized by a preliminary extraction step, a continuous heat treatment step, and an extraction step. In some cases, the preliminary extraction step can be omitted. Graphite fibers having a tensile strength of about 400 Kg/mm.sup.2 and a modulus of elasticity of above 60 ton/mm.sup.2 can be obtained from the mesophase pitch. Further, even carbon fibers prepared at a carbonization temperature of 1000.degree. C. have a tensile strength of about 300 Kg/mm.sup.2.

5. 发明授权

US4789456A Process for preparing mesophase pitches 失效
标题翻译：制备中间相沥青的方法
公开(公告)号：US4789456A
公开(公告)日：1988-12-06
申请号：US48415
申请日：1987-05-11
申请人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima
发明人： Masatoshi Tsuchitani , Sakae Naito , Ryoichi Nakajima
IPC分类号： C10C3/02 , C10C1/16 , C10C3/00 , C10C3/04 , C10C3/06 , C10C3/10 , C10G67/02 , C10G69/06 , D01F9/145
CPC分类号： C10C3/00
摘要： A process for an efficient preparation of a mesophase pitch is disclosed. The process is suitable for the production of high performance carbon fibers, from a coal tar or a petroleum residual oil. More particularly, the present invention relates to a process for the preparation of a homogeneous mesophase pitch which comprises a continuous thermal treatment of a heavy oil or a pitch which does not contain quinoline insoluble fractions, in the presence or absence of an aromatic oil, subsequent distillation of the thermally treated product, recovery of a pitch with extremely low quinoline insoluble contents, hydrogenation of the pitch by continuous thermal treatment in the presence of a hydrogen-donating solvent, distillation and recovery of a hydrogenation pitch, and thermal treatment of the hydrogenated pitch. The mesophase pitch prepared by the process of the present invention is suitable for the production of high performance carbon fibers.

6. 发明授权

US06194344B1 Process for preparing carbonaceous material carrying ultrafinely dispersed metal 失效
标题翻译：制备含有超细分散金属的碳质材料的方法
公开(公告)号：US06194344B1
公开(公告)日：2001-02-27
申请号：US09414288
申请日：1999-10-07
申请人： Masatoshi Tsuchitani , Ryoichi Nakajima , Kiyotaka Suzuki , Hitoshi Shigematsu , Katsutoshi Nishitani
发明人： Masatoshi Tsuchitani , Ryoichi Nakajima , Kiyotaka Suzuki , Hitoshi Shigematsu , Katsutoshi Nishitani
IPC分类号： B01J2118
CPC分类号： B01J21/18 , B01J35/002 , B01J35/023 , B01J35/1019 , B01J35/1038 , B01J37/084 , C04B38/0022 , C04B2111/0081 , C10C3/06 , C04B35/52 , C04B35/56
摘要： 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.
摘要翻译：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。

7. 发明授权

US5736030A Process for manufacturing fine particles of pitch with a high softening point 失效
标题翻译：用于制造具有高软化点的沥青微细颗粒的方法
公开(公告)号：US5736030A
公开(公告)日：1998-04-07
申请号：US565116
申请日：1995-11-30
申请人： Masatoshi Tsuchitani , Kiyotaka Suzuki , Ryoichi Nakajima , Tomohiko Sato
发明人： Masatoshi Tsuchitani , Kiyotaka Suzuki , Ryoichi Nakajima , Tomohiko Sato
IPC分类号： B01F3/08 , C10C3/00 , C10C3/16 , C10C1/00
CPC分类号： C10C3/00
摘要： 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.
摘要翻译：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。

8. 发明授权

US4818449A Process to prevent crack formation in the production of carbon fibers 失效
标题翻译：防止碳纤维生产中裂纹形成的过程
公开(公告)号：US4818449A
公开(公告)日：1989-04-04
申请号：US818499
申请日：1986-01-13
申请人： Yasuhiro Yamada , Takeshi Imamura , Hidemasa Honda , Masatoshi Tsuchitani , Ryoichi Nakajima
发明人： Yasuhiro Yamada , Takeshi Imamura , Hidemasa Honda , Masatoshi Tsuchitani , Ryoichi Nakajima
IPC分类号： D01F9/14 , C10C1/00 , D01D4/02 , D01D4/06 , D01F6/00 , D01F9/00 , D01F9/155 , D01F9/32 , D01F9/12
CPC分类号： D01F9/155 , C10C1/00 , D01D4/06 , D01F9/00 , D01F9/322
摘要： When preparing carbon fibers from mesophase pitches, we usually encounter to the formation of cracks along the fiber axis. The crack formation is the most serious and troublesome problem. A simple process which can effectively prevent the crack formation comprises preparing the carbon fibers from mesophase pitches by melt spinning sufficient only to give a rotatory motion to the molten mesophase pitches just before extrusion substantially around the axis of a spinning nozzle hole. The process employs a usual nozzle plate having a pitch introducing tube and a spinning nozzle hole further containing a plug member having an outer spiral groove such as a drill point or a worm gear which is inserted within the pitch introducing tube.
摘要翻译：当从中间相沥青制备碳纤维时，我们通常会遇到沿着纤维轴形成裂纹。裂缝形成是最严重和最麻烦的问题。可以有效地防止裂纹形成的简单方法包括通过熔融纺丝从中间相沥青制备碳纤维，其仅足以在基本上围绕纺丝喷嘴孔的轴线挤出之前对熔融的中间相沥青进行旋转运动。该方法采用具有沥青引入管和纺丝喷嘴孔的通常喷嘴板，该喷嘴孔还包含插入在沥青引入管中的具有诸如钻头或蜗轮的外螺旋槽的塞构件。

9. 发明授权

US4705618A Process for the preparation of an intermediate pitch for manufacturing carbon products 失效
标题翻译：制备碳制品用中间沥青的方法
公开(公告)号：US4705618A
公开(公告)日：1987-11-10
申请号：US849568
申请日：1986-04-08
申请人： Masatoshi Tsuchitani , Ryoichi Nakajima
发明人： Masatoshi Tsuchitani , Ryoichi Nakajima
IPC分类号： C10C3/02 , C10C1/08 , C10C1/16 , C10C1/19 , C10C3/00 , C10C3/06 , C10C3/10 , D01F9/145 , D01F9/155 , D01F9/12
CPC分类号： C10C1/08 , C10C1/16 , C10C1/19 , C10C3/002 , C10C3/06 , D01F9/145
摘要： Until now, it has not yet been succeeded to prepare high performance carbon fibers having satisfactory strength from heavy oils of coal or petroleum origin. We now succeeded to prepare an excellent intermediate pitch which allows the preparation of high performance carbon fibers having tensile strength of higher than 300 Kg/mm.sup.2 and Young's modulus of 50 ton/mm.sup.2.The intermediate pitch can be obtained by heating a heavy oil of coal or petroleum origin in a tubular heater under a specific conditions, and then flash distilling the heater effluent in a flash distillation column under a specific condition so as to remove lighter fractions and recovering heavy fraction from the column bottom as the intermediate pitch. The process for the preparation of the intermediate pitch is simple and economical and allows continuous production without fluctuation of quality of the intermediate pitch. The intermediate pitch is also suitable for the production of higher density carbon products.

10. 发明授权

US5052116A Method and apparatus for measuring azimuth 失效
标题翻译：测量方位角的方法和装置
公开(公告)号：US5052116A
公开(公告)日：1991-10-01
申请号：US486627
申请日：1990-02-28
申请人： Sakuji Oide , Ryoichi Nakajima
发明人： Sakuji Oide , Ryoichi Nakajima
IPC分类号： G01C17/28 , G01C17/30
CPC分类号： G01C17/30
摘要： A method of measuring an azimuth by detecting the earth's magnetism by using two perpendicular coils to detect the azimuth according to the outputs of the coils, including the steps of converting the outputs of the coils by multiplying them by a constant so as to vary in a range determined by a reference value, dividing the converted signal by the reference value, and measuring the azimuth at each coil output according to an inverse trigonometric function, with the divided result as a variable. An azimuth measuring apparatus for executing the method is also provided. Thus, the method and apparatus can accurately detect the azimuth and can further detect an error due to a disorder of the earth's magnetism or the inclination of the apparatus.
摘要翻译：一种通过使用两根垂直线圈检测地磁的方法来测量方位角的方法，以便根据线圈的输出来检测方位角，包括通过将线圈的输出乘以常数来变化的步骤，以便在由参考值确定的范围，将转换的信号除以参考值，并根据反三角函数测量每个线圈输出处的方位角，将分割结果作为变量。还提供了一种用于执行该方法的方位测量装置。因此，该方法和装置可以精确地检测方位并且可以进一步检测由于地球磁性的紊乱或装置的倾斜引起的误差。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式