公开(公告)号：US5482601A

公开(公告)日：1996-01-09

申请号：US372130

申请日：1995-01-13

申请人： Satoshi Ohshima ,  Motoo Yumura ,  Yasunori Kuriki ,  Kunio Uchida ,  Fumikazu Ikazaki

发明人： Satoshi Ohshima ,  Motoo Yumura ,  Yasunori Kuriki ,  Kunio Uchida ,  Fumikazu Ikazaki

IPC分类号： D01F9/12 ,  C01B31/02 ,  C01B31/00

CPC分类号： C01B31/0226 ,  B82Y30/00 ,  B82Y40/00 ,  Y10S977/742 ,  Y10S977/844

摘要： Carbon nanotubes are produced by successively repositioning an axially extending rod-like carbonaceous anode relative to a cathode surface such that a tip end surface of the anode successively faces on different portions of the cathode surface while impressing a direct current voltage therebetween, so that an arc discharge occur with the simultaneous formation of carbonaceous deposits containing carbon nanotubes on each of the portions of the cathode surface. The carbonaceous deposits are scraped and collected. A device for carrying out the above method includes a driving member for displacing the cathode surface relative to the anode.

摘要翻译： 通过相对于阴极表面相对重新定位轴向延伸的棒状碳质阳极来制造碳纳米管，使得阳极的前端表面在阴极表面的不同部分上依次面对其间的直流电压，使得弧形 随着在阴极表面的每个部分上同时形成含有碳纳米管的碳质沉积物而发生放电。 刮除并收集碳质沉积物。 用于执行上述方法的装置包括用于使阴极相对于阳极移位的驱动构件。

公开(公告)号：US5560898A

公开(公告)日：1996-10-01

申请号：US283508

申请日：1994-08-01

申请人： Kunio Uchida ,  Motoo Yumura ,  Satoshi Ohshima ,  Yasunori Kuriki ,  Kiyoshi Yase ,  Fumikazu Ikazaki

发明人： Kunio Uchida ,  Motoo Yumura ,  Satoshi Ohshima ,  Yasunori Kuriki ,  Kiyoshi Yase ,  Fumikazu Ikazaki

IPC分类号： C01B31/02 ,  D01F9/12

CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B31/026 ,  C01B31/0266 ,  D01F9/12 ,  Y10S977/734 ,  Y10S977/742 ,  Y10S977/773 ,  Y10S977/845

摘要： Carbon nanotubes are isolated from a mixture containing the carbon nanotubes and graphite particles by a process including the steps of:finely pulverizing the mixture;dispersing the pulverized product in a liquid medium;centrifuging the resulting dispersion to obtain a supernatant containing carbon nanotubes and graphite particles having a particle size of 0.3 .mu.m or less;separating the supernatant into a solid phase and a liquid phase; andcalcining the solid phase in an oxygen-containing atmosphere at a temperature sufficient to burn the graphite particles and to leave the nanotubes.

摘要翻译： 通过包括以下步骤的方法从含有碳纳米管和石墨颗粒的混合物中分离碳纳米管：将混合物细粉碎; 将粉碎产物分散在液体介质中; 离心分离得到含有碳纳米管和粒径为0.3μm以下的石墨粒子的上清液， 将上清液分离成固相和液相; 并在足够燃烧石墨颗粒并离开纳米管的温度下在含氧气氛中煅烧固相。

公开(公告)号：US5695734A

公开(公告)日：1997-12-09

申请号：US529067

申请日：1995-09-15

申请人： Fumikazu Ikazaki ,  Kunio Uchida ,  Motoo Yumura ,  Satoshi Ohshima ,  Yasunori Kuriki ,  Hiroshi Hayakawa

发明人： Fumikazu Ikazaki ,  Kunio Uchida ,  Motoo Yumura ,  Satoshi Ohshima ,  Yasunori Kuriki ,  Hiroshi Hayakawa

IPC分类号： C01B31/02 ,  D01F9/12 ,  D01F9/127 ,  D01F11/12

CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B31/026 ,  C01B31/0266 ,  D01F11/129 ,  D01F9/12 ,  Y10S977/742 ,  Y10S977/835 ,  Y10S977/888

摘要： A process for the isolation of carbon nanotubes from a mixture containing carbon nanotubes and graphite is disclosed, which includes the steps of: (a) reacting the mixture with a metal compound to intercalate the metal compound into the graphite; (b) reducing the reaction mixture obtained in step (a) to convert the intercalated metal compound to elemental metal; (c) heating the reduction mixture obtained in step (b) at a temperature of 450-600.degree. C. in an oxygen-containing atmosphere to selectively oxidize the graphite and the elemental metal; and (d) contacting the heated mixture obtained in step (c) with a liquid to dissolve the oxidized metal in the liquid and to separate the carbon nanotubes as a solid phase from the oxidized metal.

摘要翻译： 公开了从含有碳纳米管和石墨的混合物中分离碳纳米管的方法，其包括以下步骤：（a）使混合物与金属化合物反应以将金属化合物嵌入石墨中; （b）还原步骤（a）中获得的反应混合物以将插入的金属化合物转化为元素金属; （c）在含氧气氛中，在450-600℃的温度下加热步骤（b）中得到的还原混合物，以选择性地氧化石墨和元素金属; 和（d）将步骤（c）中获得的加热混合物与液体接触以将氧化的金属溶解在液体中，并将​​作为固相的碳纳米管与氧化金属分离。

公开(公告)号：US5587141A

公开(公告)日：1996-12-24

申请号：US387253

申请日：1995-02-13

申请人： Satoshi Ohshima ,  Motoo Yumura ,  Yasunori Kuriki ,  Kunio Uchida ,  Fumikazu Ikazaki

发明人： Satoshi Ohshima ,  Motoo Yumura ,  Yasunori Kuriki ,  Kunio Uchida ,  Fumikazu Ikazaki

IPC分类号： B01J19/08 ,  B01J19/14 ,  B01J19/24 ,  C01B31/02

CPC分类号： B82Y30/00 ,  B01J19/088 ,  B01J19/14 ,  B01J19/24 ,  B82Y40/00 ,  C01B31/0206 ,  C01B31/0213 ,  B01J2219/00065 ,  B01J2219/00081 ,  Y10S977/842

摘要： Soot containing fullerenes is produced by impressing a DC voltage between a carbonaceous anode and a cathode in an airtight chamber maintained in an inert gas atmosphere to cause arc discharge to occur. After termination of the impression of the DC voltage, an inert gas is blown into the chamber to fluidize the soot. The fluidized soot is discharged from the chamber and is brought into contact with a solvent to recover the fullerenes.

摘要翻译： 含有富勒烯的烟灰是通过在保持在惰性气体气氛中的气密室中在碳质阳极和阴极之间施加直流电压而产生电弧放电而产生的。 在终止直流电压的印象之后，向室内吹入惰性气体以使煤烟流化。 流化烟灰从室排出并与溶剂接触以回收富勒烯。

公开(公告)号：US4981824A

公开(公告)日：1991-01-01

申请号：US323826

申请日：1989-03-15

申请人： Michiko Yonemura ,  Tadao Sekine ,  Yoshimichi Kiyozumi ,  Kunio Suzuki ,  Kunio Uchida ,  Fumikazu Ikazaki ,  Shigemitsu Shin

发明人： Michiko Yonemura ,  Tadao Sekine ,  Yoshimichi Kiyozumi ,  Kunio Suzuki ,  Kunio Uchida ,  Fumikazu Ikazaki ,  Shigemitsu Shin

IPC分类号： C04B33/04 ,  C04B33/24

CPC分类号： C04B33/04

摘要： A novel ceramic material affording a ceramic molded bodies having a high toughness and a high tensile strength is disclosed which comprises a smectite clay mineral having at least a portion of ion-exchangeable cations thereof ion-exchanged with bismuth ions. The ceramic material is prepared by treating a smectite clay mineral with an aqueous solution containing bismuth ions to ion-exchange at least a portion of ion-exchangeable cations thereof with bismuth ions.

公开(公告)号：US3980465A

公开(公告)日：1976-09-14

申请号：US511371

申请日：1974-10-02

申请人： Reijiro Nishida ,  Kunio Takeda ,  Dentaro Kaneko ,  Kunio Uchida

发明人： Reijiro Nishida ,  Kunio Takeda ,  Dentaro Kaneko ,  Kunio Uchida

IPC分类号： C22B1/14 ,  C22B1/24

CPC分类号： C22B1/2413

摘要： Iron-ore oxidized pellets are produced from magnetite concentrate by the addition to the magnetite concentrate of at least one calcium compound selected from the group consisting of slaked lime, quicklime and limestone, to a basicity of 1 to 5, granulating the mixture thus prepared, drying the same, preheating the same at a temperature of from 1000.degree. to 1150.degree.C for 3 to 10 minutes, and thereafter firing the same.

摘要翻译： 铁矿石氧化的颗粒是由磁铁矿精矿通过添加到选自熟石灰，生石灰和石灰石中的至少一种钙化合物的磁铁矿浓缩物制成，碱度为1至5，将如此制备的混合物造粒， 将其干燥，在1000〜1150℃的温度下预热3〜10分钟，然后进行烧成。