公开(公告)号：US11149361B1

公开(公告)日：2021-10-19

申请号：US17315390

申请日：2021-05-10

申请人： China University of Petroleum

发明人： Dong Liu ,  Xin Gong ,  Bin Lou ,  Jun Li ,  Zhihao Li ,  Nan Shi ,  Fushan Wen ,  Hui Du ,  Zhaojun Chen ,  Changlong Yin ,  Xiujie Yang ,  Luning Chai ,  Zhichen Zhang ,  Enqiang Yu ,  Yu'e Fu ,  Huizhi Yuan ,  Jianguo Zhang ,  Zhiqing Ma ,  Chong Jiao ,  Yonggang Cao

IPC分类号： B01D15/34 ,  B01D15/36 ,  B01J20/26 ,  B01J20/28 ,  D01F9/15 ,  D01F9/155 ,  C10C3/08 ,  B01D15/18

摘要： Preparation methods of a high modulus carbon fiber (HMCF) and a precursor (mesophase pitch (MP)) thereof are provided. The preparation method of MP includes: separating components with a molecular weight distribution (MWD) of 400 to 1,000 from a heavy oil raw material through size-exclusion chromatography (SEC); subjecting the components to ion-exchange chromatography (IEC) to obtain modified feedstock oil, where, the components are passed through macroporous cation-exchange and anion-exchange resins in sequence to remove acidic and alkaline components; and subjecting the modified feedstock oil to thermal polycondensation and carbonization to obtain high-quality MP with prominent spinnability. With high mesophase content, low softening point, low viscosity, and prominent meltability and spinnability, the obtained MP is a high-quality raw material for preparing HMCFs. The obtained MP can be subjected to melt spinning, pre-oxidation, carbonization, and graphitization to obtain an MP-based HMCF.

公开(公告)号：US10787610B2

公开(公告)日：2020-09-29

申请号：US15949950

申请日：2018-04-10

申请人： TerraPower, LLC

发明人： Benjamin L. Goodrich ,  Joshua C. Walter

IPC分类号： C10G1/02 ,  C10B21/08 ,  D01F9/32 ,  D01F9/15 ,  C10G1/00 ,  C10B57/08 ,  C10B57/02 ,  C10B57/14 ,  C10B33/02

摘要： Examples of a flexible pyrolysis system are provided that include at least one reaction chamber capable of pyrolyzing a combination of coal in a supercritical carbon dioxide (CO2) atmosphere. The system includes a recuperating and condensing circuit that removes dissolved pyrolysis products from the supercritical CO2 atmosphere and then recovers CO2 for reuse in the reaction chamber. The recuperating and condensing circuit includes multiple stages of recuperators and collectors that can be independently controlled in order to selectively fractionate the pyrolysis products. In addition, the pyrolysis reaction may be controlled to alter the pyrolysis products generated.

公开(公告)号：US10246798B2

公开(公告)日：2019-04-02

申请号：US15441181

申请日：2017-02-23

申请人： The Boeing Company

发明人： Thomas Karl Tsotsis

IPC分类号： D01D1/02 ,  D01D5/04 ,  D01D5/06 ,  D01D10/02 ,  D01F1/02 ,  D01F8/02 ,  D01F8/04 ,  D01F8/10 ,  D01F8/16 ,  D01F8/18 ,  D01F9/15 ,  D01F9/155 ,  D01F9/20 ,  D01F9/21 ,  D01F9/24 ,  D01F1/10 ,  D01D5/00 ,  C01B32/00 ,  D01F8/00 ,  D01F9/14 ,  B29C70/16 ,  D01D5/08 ,  D01D5/34 ,  D01F8/08 ,  D01F9/145 ,  D01F9/22 ,  B29K307/04

摘要： There is provided a method of making a fiber having improved resistance to microfracture formation at a fiber-matrix interface. The method includes mixing a plurality of nanostructures and one or more first polymers in a first solvent to form an inner-volume portion mixture, mixing one or more second polymers in a second solvent to form an outer-volume portion mixture, spinning the inner-volume portion mixture and the outer-volume portion mixture to form a precursor fiber, heating the precursor fiber to oxidize the precursor fiber and to change a molecular-bond structure of the precursor fiber, and obtaining a fiber. The fiber has an inner-volume portion with a first outer diameter, the nanostructures, and with the one or more first polymers, and has an outer-volume portion with a second outer diameter and the one or more second polymers, the outer-volume portion being in contact with and completely encompassing the inner-volume portion.

公开(公告)号：US20180142158A1

公开(公告)日：2018-05-24

申请号：US15570922

申请日：2016-05-09

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

发明人： Maki HAMAGUCHI ,  Shohei WADA ,  Toshinori INOUE ,  Seong-Ho YOON

IPC分类号： C10C3/08 ,  C10C3/02 ,  D01F9/15

CPC分类号： C10C3/08 ,  C08L95/00 ,  C10C3/002 ,  C10C3/026 ,  D01F9/15

摘要： A raw material pitch for carbon fiber production, with which carbon fiber excellent in tensile strength can be produced at relatively low costs, is provided. The raw material pitch is obtained from coal, is a pitch for producing carbon fiber by melt spinning, and contains oxygen in a content of 1.0% by mass or more and a toluene-soluble component in a content of 20% by mass or more. The coal is preferably bituminous coal or sub-bituminous coal. The raw material pitch is preferably prepared by subjecting a solvent-soluble component separated from a thermal decomposition product of coal in a solvent by a solvent extraction treatment at a temperature of less than 300° C. to a heat treatment at a temperature of 150° C. or more.

公开(公告)号：US20180051397A1

公开(公告)日：2018-02-22

申请号：US15557506

申请日：2016-02-08

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

发明人： Maki HAMAGUCHI ,  Shohei WADA ,  Toshinori INOUE ,  Seongho YOON ,  Jin MIYAWAKI

IPC分类号： D01F9/15 ,  C10G1/04 ,  D01D5/08 ,  D01D10/02

CPC分类号： D01F9/15 ,  C10G1/04 ,  D01D5/08 ,  D01D10/02

摘要： A method for producing a carbon fiber includes a separation step of separating an ash-free coal obtained from a bituminous coal or a sub-bituminous coal, into a soluble component(s) and an insoluble component(s) by a solvent extraction treatment, a heat treatment step of heat-treating the soluble component(s), a melt spinning step of melt-spinning the soluble component(s) subjected to the heat treatment, an infusibilization step of infusibilizing a filament body obtained by the melt spinning, and a carbonization step of carbonizing the filament body subjected to the infusibilization.

公开(公告)号：US20170175001A1

公开(公告)日：2017-06-22

申请号：US15300703

申请日：2016-04-22

申请人： YUSUNG TELECOM CO., LTD.

发明人： Sung Ho YOON ,  Seong Hwa HONG ,  Suk Jun YU

IPC分类号： C10C3/02 ,  D01F6/76 ,  C08G61/10 ,  C10C3/00 ,  D01F9/15 ,  D01F9/155

CPC分类号： C10C3/026 ,  C08G61/10 ,  C08G2261/314 ,  C10C3/00 ,  C10C3/002 ,  D01F6/76 ,  D01F9/145 ,  D01F9/15 ,  D01F9/155 ,  H01M4/587 ,  H01M4/625

摘要： Provided are a method of preparing a high softening point pitch and the high softening point pitch prepared thereby, in which a polyene radical intermediate is formed, and an alkylaromatic radial material is linearly linked to the polyene radical intermediate in a benzyl or methylene form to be polymerized. The method includes performing heat treatment by adding a compound, which is able to a polyene radical intermediate, to 1- to 4-ring alkylaromatic condensates to produce a basic pitch, and performing vacuum heat treatment for the basic pitch.

公开(公告)号：US09149747B2

公开(公告)日：2015-10-06

申请号：US14122899

申请日：2012-10-18

申请人： Tec One Co., Ltd.

发明人： Takahiro Kitano

IPC分类号： H01M4/38 ,  H01M4/66 ,  H01M4/86 ,  H01M4/88 ,  D01F9/12 ,  D01F11/14 ,  D01F9/14 ,  D01F9/15 ,  B01D39/06 ,  B01D39/14 ,  B01D71/02 ,  C01B31/02 ,  B01D39/08 ,  C08K7/18 ,  D04H1/4242 ,  D01D5/04 ,  D01D5/18 ,  D01F1/10 ,  C08L101/00 ,  D01F9/145 ,  D01F9/20 ,  H01M4/62 ,  H01M8/02 ,  H01M4/96 ,  D01D1/02 ,  D01F6/14 ,  D01F6/16 ,  H01G11/40 ,  H01M4/587 ,  H01M4/134 ,  H01M10/052

CPC分类号： B01D39/086 ,  C08K7/18 ,  C08L101/00 ,  D01D1/02 ,  D01D5/04 ,  D01D5/18 ,  D01F1/10 ,  D01F6/14 ,  D01F6/16 ,  D01F9/145 ,  D01F9/20 ,  D04H1/4242 ,  H01G11/40 ,  H01M4/134 ,  H01M4/386 ,  H01M4/387 ,  H01M4/587 ,  H01M4/625 ,  H01M4/663 ,  H01M4/96 ,  H01M8/0234 ,  H01M10/052 ,  Y02E60/13 ,  Y02E60/50 ,  Y02P70/56 ,  Y10T442/61 ,  Y10T442/681

摘要： The object of the present invention is to provide carbon fiber material having high electrical conductivity at a low cost. A manufacturing method of carbon fiber material comprises a dispersion liquid preparation step, a centrifugal spinning step and a denaturation step. The dispersion liquid preparation step is a step in which dispersion liquid containing resin and carbon particles is prepared. The centrifugal spinning step is a step in which nonwoven fabric made of a carbon fiber precursor is formed from the dispersion liquid. The denaturation step is a step in which the carbon fiber precursor denatures into carbon fiber.

摘要翻译： 本发明的目的是以低成本提供具有高导电性的碳纤维材料。 碳纤维材料的制造方法包括分散液制备工序，离心纺丝工序和变性工序。 分散液制备步骤是制备含有树脂和碳颗粒的分散液的步骤。 离心纺丝步骤是由分散液形成由碳纤维前体制成的无纺布的步骤。 变性步骤是碳纤维前体变性为碳纤维的步骤。

公开(公告)号：US5997613A

公开(公告)日：1999-12-07

申请号：US887394

申请日：1992-05-21

申请人： Katsumi Kaneko ,  Takeshi Maeda

发明人： Katsumi Kaneko ,  Takeshi Maeda

IPC分类号： B01D53/02 ,  C01B31/04 ,  D01F9/14 ,  D01F9/145 ,  D01F9/15 ,  D01F11/12 ,  B01D53/42

CPC分类号： D01F11/122 ,  D01F9/145 ,  D01F9/15

摘要： A gas phase adsorption process in which a gas phase containing water vapor or a basic gas is brought into contact with activated carbon fiber to adsorb the water vapor or basic gas. The activated carbon fiber comprises pitch-based oxidized activated carbon fiber having oxygen-containing functional groups and an oxygen content of 3-18% by weight, based on the weight of the fiber. The oxidized activated carbon fiber is prepared by oxidizing pitch-based activated carbon fiber having a specific surface area of 200-2500 m.sup.2 /g.

摘要翻译： 使含有水蒸气或碱性气体的气相与活性炭纤维接触以吸附水蒸汽或碱性气体的气相吸附方法。 活性炭纤维包括基于纤维重量的具有含氧官能团和氧含量为3-18重量％的沥青基氧化活性炭纤维。 通过氧化比表面积为200-2500m 2 / g的沥青类活性炭纤维来制备氧化活性炭纤维。

公开(公告)号：US5643547A

公开(公告)日：1997-07-01

申请号：US373457

申请日：1995-01-17

申请人： Tetsuo Yamada ,  Tomiji Hosotsubo

发明人： Tetsuo Yamada ,  Tomiji Hosotsubo

IPC分类号： D01F9/14 ,  D01F9/145 ,  D01F9/15

CPC分类号： D01F9/145

摘要： A process for preparing mesophase pitch based carbon fibers is disclosed, wherein mesophase pitch fibers are gas-phase nitrated in an atmosphere of an oxygen-containing gas such as air or an inert gas such as nitrogen containing 0.1 to 50% by volume of NO.sub.2 at a low temperature of not higher than 100.degree. C. for a long period of time. The carbon fibers thus obtained are excellent in both mechanical strength and elastic modulus and have well-balanced physical properties.

摘要翻译： 公开了一种制备中间相沥青基碳纤维的方法，其中中间相沥青纤维在含氧气体如空气或惰性气体例如含有0.1-50体积％的NO 2的氮气气氛中进行气相硝化， 低温不低于100℃长时间。 由此获得的碳纤维的机械强度和弹性模量均优异并且具有良好平衡的物理性能。

公开(公告)号：US5523269A

公开(公告)日：1996-06-04

申请号：US305853

申请日：1994-09-14

申请人： David L. Morgan ,  Vladimir Cukan

发明人： David L. Morgan ,  Vladimir Cukan

IPC分类号： C01B31/02 ,  C01B21/06 ,  C01B31/30 ,  C01B31/34 ,  C01B31/36 ,  C10C3/02 ,  C10C3/08 ,  D01F6/00 ,  D01F9/145 ,  D01F9/15 ,  D01F9/24

CPC分类号： B82Y30/00 ,  C01B21/06 ,  C01B31/305 ,  C01B31/34 ,  C01B31/36 ,  D01F9/15 ,  C01P2002/60 ,  C01P2004/10 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2006/12 ,  Y10S264/19

摘要： A method of making a compound selected from metal and silicon carbides and nitrides includes the steps of providing a solution of a coal-derived material in a solvent, the coal-derived material having a composition, free of solvent, of 70 to 91 percent by mass of carbon, 2 to 6 percent by mass of hydrogen and 3 to 20 percent by mass of oxygen, and a source of an oxide of silicon or the metal, causing the coal-derived material in solution and the source of the oxide to interact, removing the solvent to form a precursor and heat treating the precursor to produce the compound.