Nanotubes and methods of dispersing and separating nanotubes
    3.
    发明授权
    Nanotubes and methods of dispersing and separating nanotubes 失效
    纳米管和分散和分离纳米管的方法

    公开(公告)号:US07247670B2

    公开(公告)日:2007-07-24

    申请号:US10925312

    申请日:2004-08-24

    IPC分类号: C01B31/02

    摘要: A nanostructure having at least one nanotube and at least one chemical moiety non-covalently attached to the at least one nanotube. At least one dendrimer is bonded to the chemical moiety. The chemical moiety may include soluble polymers, soluble oligomers, and combinations thereof. A method of dispersing at least one nanotube is also described. The method includes providing at least one nanotube and at least one chemical moiety to a solvent; debundling the nanotube; and non-covalently attaching a chemical moiety to the nanotube, wherein the non-covalently attached chemical moiety disperses the nanotube. A method of separating at least one semi-conducting carbon nanotube is also described.

    摘要翻译: 具有至少一个纳米管和至少一个非共价连接到所述至少一个纳米管的化学部分的纳米结构。 至少一个树枝状大分子结合到化学部分。 化学部分可包括可溶性聚合物,可溶性低聚物及其组合。 还描述了分散至少一种纳米管的方法。 该方法包括向溶剂提供至少一个纳米管和至少一个化学部分; 分解纳米管; 并且非共价连接化学部分到纳米管,其中非共价连接的化学部分分散纳米管。 还描述了分离至少一种半导电碳纳米管的方法。

    Process for producing oxochlorides of sulfur
    4.
    发明授权
    Process for producing oxochlorides of sulfur 失效
    硫的氧氯化物的制备方法

    公开(公告)号:US5759508A

    公开(公告)日:1998-06-02

    申请号:US881233

    申请日:1997-06-24

    IPC分类号: B01J27/224 C01B17/45

    摘要: A process for producing sulfuryl chloride and/or thionyl chloride is disclosed which involves contacting a mixture comprising SO.sub.2 and Cl.sub.2 (e.g., at about 300.degree. C. or less) with a silicon carbide catalyst having a surface area of at least 10 m.sup.2 .multidot.g.sup.-1.

    摘要翻译: 公开了一种生产磺酰氯和/或亚硫酰氯的方法,其涉及将包含SO 2和Cl 2的混合物(例如,在约300℃或更低)下与表面积为至少10m 2×g -1的碳化硅催化剂接触 。

    Phosgene manufacturing process
    5.
    发明授权
    Phosgene manufacturing process 失效
    光气制造工艺

    公开(公告)号:US6022993A

    公开(公告)日:2000-02-08

    申请号:US29641

    申请日:1998-03-09

    IPC分类号: C01B32/80 C07C51/58

    CPC分类号: C01B31/28

    摘要: A process for producing phosgene is disclosed which involves contacting a mixture comprising CO and Cl.sub.2 (e.g., at about 300.degree. C. or less) with carbon having an active metal content of less than 1000 ppm by weight and a high degree of oxidative stability (i.e., a weight loss of about 12 percent, or less, in the WVC Temperature Test as defined herein).

    摘要翻译: PCT No.PCT / US96 / 17526 Sec。 371日期1998年3月9日 102(e)1998年3月9日PCT PCT 1996年11月1日PCT公布。 公开号WO97 / 3093200 日本公开1997年8月28日公开了一种生产光气的方法,其涉及将包含CO和Cl 2(例如,约300℃或更低)的混合物与活性金属含量小于1000ppm重量的碳接触, 在本文定义的WVC温度测试中氧化稳定性程度(即约12%或更低的重量损失)。

    Alkaline earth fluoride manufacturing process
    7.
    发明授权
    Alkaline earth fluoride manufacturing process 失效
    碱土氟化物制造工艺

    公开(公告)号:US5910297A

    公开(公告)日:1999-06-08

    申请号:US114454

    申请日:1998-07-13

    IPC分类号: C01F5/28 C01F11/22

    CPC分类号: C01F11/22 C01F5/28

    摘要: A process suitable for producing high purity alkaline earth fluoride product is disclosed which involves (a) mixing (i) MgO, CaO, BaO, Mg(OH).sub.2, Ca(OH).sub.2, and/or Ba(OH).sub.2, (ii) NaOH, KOH and/or NH.sub.4 OH, and (iii) water, to form an aqueous slurry having a temperature of at least 20.degree. C. and an aqueous phase pH of at least 13; (b) adding fluosilicic acid, optionally adding additional water and optionally adding additional NaOH, KOH and/or NH.sub.4 OH to the slurry of (a) at a rate which maintains an aqueous phase pH of 11 or above, and in an amount to provide a molar ratio of Si: (Mg, Ca, and Ba) of at least 1:3.3, a molar ratio of (Na, K, and NH.sub.4):Si of at least 2:1, and a molar ratio of water:Si of at least 20:1, and to obtain a precipitate comprising an alkaline earth fluoride (MgF.sub.2, CaF.sub.2 and/or BaF.sub.2), and an aqueous solution of a soluble silicon anionic compound; and (c) recovering the alkaline earth fluoride product.

    摘要翻译: 公开了一种适用于生产高纯度碱土金属氟化物产品的方法,其包括(a)将(i)MgO,CaO,BaO,Mg(OH)2,Ca(OH)2和/或Ba(OH)2( ii)NaOH,KOH和/或NH 4 OH,和(iii)水,以形成温度为至少20℃,水相pH至少为13的含水浆料; (b)加入氟硅酸,任选地加入额外的水和任选地以保持水相pH为11或更高的速率向(a)的浆料中加入另外的NaOH,KOH和/或NH 4 OH,并且提供量 Si:(Mg,Ca和Ba)的摩尔比为至少1:3.3,(Na,K和NH4)的摩尔比:Si至少为2:1,水的摩尔比Si 至少20:1,得到包含碱土金属氟化物(MgF 2,CaF 2和/或BaF 2)的沉淀物和可溶性硅阴离子化合物的水溶液; 和(c)回收碱土金属氟化物产物。

    Process for producing oxochlorides of sulfur
    8.
    发明授权
    Process for producing oxochlorides of sulfur 失效
    硫的氧氯化物的制备方法

    公开(公告)号:US5879652A

    公开(公告)日:1999-03-09

    申请号:US881232

    申请日:1997-06-24

    IPC分类号: C01B17/45 C01B31/02

    摘要: A process for producing sulfuryl chloride and/or thionyl chloride is disclosed which involves contacting a mixture comprising SO.sub.2 and Cl.sub.2 (e.g., at about 300.degree. C. or less) with carbon having an active metal content of less than 1000 ppm by weight and a high degree of oxidative stability (i.e., a weight loss of about 12%, or less, in the WVC Temperature Test as defined herein).

    摘要翻译: 公开了一种生产磺酰氯和/或亚硫酰氯的方法,其包括使包含SO 2和Cl 2的混合物(例如,在约300℃或更低)与含有小于1000重量ppm的活性金属含量的碳接触, 在本文定义的WVC温度测试中,高度的氧化稳定性(即约12%或更低的重量损失)。

    Method for producing phosgene
    10.
    发明授权
    Method for producing phosgene 有权
    生产光气的方法

    公开(公告)号:US06399823B1

    公开(公告)日:2002-06-04

    申请号:US09845237

    申请日:2001-04-30

    IPC分类号: C07C5158

    摘要: A method is disclosed for producing phosgene which in one embodiment comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine sequentially with a first catalyst followed by contacting the resulting gaseous reaction mixture comprising phosgene with at least one second catalyst of higher relative activity than a first catalyst. In another embodiment a method is disclosed for producing phosgene which comprises contacting in at least one reactor a mixture comprising carbon monoxide and chlorine with at least one catalyst bed comprising a first catalyst wherein at least a portion of said first catalyst is diluted with a second catalyst of higher relative activity than a first catalyst.

    摘要翻译: 公开了一种用于生产光气的方法,其在一个实施方案中包括在至少一个反应器中将包含一氧化碳和氯的混合物依次与第一催化剂接触,接着将包含光气的所得气态反应混合物与至少一种较高相对活性的第二催化剂 比第一催化剂。 在另一个实施方案中,公开了一种用于生产光气的方法,其包括在至少一个反应器中将包含一氧化碳和氯的混合物与至少一个包含第一催化剂的催化剂床接触,其中至少一部分所述第一催化剂用第二催化剂 具有比第一催化剂更高的相对活性。