中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

608 records (took 0.024 seconds)

    Single-wall carbon nanotubes from high pressure CO
    142.
    发明授权
    Single-wall carbon nanotubes from high pressure CO 有权
    单壁碳纳米管由高压CO

    公开(公告)号：US07204970B2

    公开(公告)日：2007-04-17

    申请号：US10730630

    申请日：2003-12-08

    Applicant: Richard E. Smalley ,  Ken A. Smith ,  Daniel T. Colbert ,  Pavel Nikolaev ,  Michael J. Bronikowski ,  Robert K. Bradley ,  Frank Rohmund

    Inventor： Richard E. Smalley ,  Ken A. Smith ,  Daniel T. Colbert ,  Pavel Nikolaev ,  Michael J. Bronikowski ,  Robert K. Bradley ,  Frank Rohmund

    IPC: C01B11/02

    CPC classification number: B01J4/002 ,  B01J3/04 ,  B01J3/042 ,  B01J19/121 ,  B01J19/26 ,  B01J2219/0875 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/36 ,  D01F9/1278 ,  Y10S977/75 ,  Y10S977/751 ,  Y10S977/843 ,  Y10S977/845 ,  Y10S977/951 ,  Y10T428/30

    Abstract: The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000° C.) and a catalyst precursor gas (e.g., Fe(CO)5) in CO that is kept below the catalyst precursor decomposition temperature to a mixing zone. In this mixing zone, the catalyst precursor is rapidly heated to a temperature that results in (1) precursor decomposition, (2) formation of active catalyst metal atom clusters of the appropriate size, and (3) favorable growth of SWNTs on the catalyst clusters. Preferably a catalyst cluster nucleation agency is employed to enable rapid reaction of the catalyst precursor gas to form many small, active catalyst particles instead of a few large, inactive ones. Such nucleation agencies can include auxiliary metal precursors that cluster more rapidly than the primary catalyst, or through provision of additional energy inputs (e.g., from a pulsed or CW laser) directed precisely at the region where cluster formation is desired. Under these conditions SWNTs nucleate and grow according to the Boudouard reaction. The SWNTs thus formed may be recovered directly or passed through a growth and annealing zone maintained at an elevated temperature (e.g., 1000° C.) in which tubes may continue to grow and coalesce into ropes.

    Abstract translation: 本发明公开了提供已被预热（例如，约1000℃）的高压（例如30个大气压）的CO和催化剂前体气体（例如Fe（CO）5） >）在CO中，其保持低于催化剂前体分解温度至混合区。 在该混合区中，将催化剂前体快速加热到导致（1）前体分解的温度，（2）形成适当尺寸的活性催化剂金属原子簇，和（3）在催化剂簇上的SWNT的有利生长 。 优选使用催化剂簇成核剂来使催化剂前体气体快速反应以形成许多小的活性催化剂颗粒，而不是几个大的非活性催化剂颗粒。 这样的成核机构可以包括比主要催化剂更快地聚集的辅助金属前体，或者通过提供精确地指向需要簇形成的区域的额外的能量输入（例如来自脉冲或CW激光）。 在这些条件下，SWNT根据Boudouard反应成核并生长。 如此形成的SWNT可以直接回收或通过保持在高温（例如1000℃）的生长和退火区域，其中管可以继续生长并聚结成绳索。

    Process for the production of melamine
    144.
    发明授权
    Process for the production of melamine 有权
    三聚氰胺生产工艺

    公开(公告)号：US07022848B2

    公开(公告)日：2006-04-04

    申请号：US10953021

    申请日：2004-09-28

    Applicant: Hartmut Bucka ,  Gerhard Coufal ,  Ferdinand Koglgruber

    Inventor： Hartmut Bucka ,  Gerhard Coufal ,  Ferdinand Koglgruber

    IPC: C07D25/60 ,  F28D7/00

    CPC classification number: C07D251/60 ,  B01J3/04 ,  B01J4/002 ,  B01J4/005 ,  B01J10/005 ,  B01J19/006 ,  B01J19/246 ,  B01J2219/00078

    Abstract: A process for the production of melamine by pyrolysis of urea in a high-pressure reactor having a vertical central pipe is provided. The melamine flows upwards into the reactor from below, mixes in the lower part of the reactor with a urea melt, and optionally NH3, introduced into the reactor from below, and emerges from the central pipe in the upper part of the central pipe. Part of the melamine formed flows downward in the annular space between the central pipe and reactor wall, and the remainder is expelled for further work-up. The off-gases are removed at the top of the reactor. A reactor for carrying out the process is also provided.

    Abstract translation: 提供了一种通过在具有垂直中心管的高压反应器中热解尿素来生产三聚氰胺的方法。 三聚氰胺从下面向上流入反应器，在反应器的下部与尿素熔体和可选的NH 3混合，从下方引入反应器，并从中心管中出来 中央管道的上部。 形成的三聚氰胺的一部分在中心管和反应器壁之间的环形空间中向下流动，其余部分被排出以进一步后处理。 在反应器的顶部除去废气。 还提供了用于实施该方法的反应器。

    Multiautoclave for combinatorial synthesis of zeolites and other materials
    145.
    发明授权
    Multiautoclave for combinatorial synthesis of zeolites and other materials 失效
    用于组合合成沸石和其他材料的多孔沸石

    公开(公告)号：US06821486B1

    公开(公告)日：2004-11-23

    申请号：US09308562

    申请日：1999-07-16

    Applicant: Duncan Akporiaye ,  Ivar Martin Dahl ,  Arne Karlsson ,  Rune Wendelbo

    Inventor： Duncan Akporiaye ,  Ivar Martin Dahl ,  Arne Karlsson ,  Rune Wendelbo

    IPC: B01L300

    CPC classification number: B01J3/04 ,  B01J19/0046 ,  B01J2219/00313 ,  B01J2219/00319 ,  B01J2219/00335 ,  B01J2219/00349 ,  B01J2219/00477 ,  B01J2219/00585 ,  B01J2219/00596 ,  B01J2219/00601 ,  B01J2219/00745 ,  B01J2219/00747 ,  B01J2219/00754 ,  C01B39/02 ,  C40B30/08 ,  C40B40/18 ,  C40B60/14

    Abstract: The invention relates to a multi-autoclave and details of its design, a method for automated synthesis of zeolites in the multi-autoclave, and furthermore, to applications of the multi-autoclave for an automated synthesis which is optimized simultaneously with regard to several synthesis parameters in the synthesis of zeolites. The multi-autoclave consists typically of a pressure vessel/autoclave having from 10 to 10,000 small, separated chambers lined with an inert material, with each chamber typically having a volume of 0.2-2 ml. The chambers preferably are formed as through-going perforations in a central block and the perforations are sealed by balls, septa, stoppers or such which are placed at the bottom and top of each through-going perforation. Metal plates are placed over and under the central block so that a closing mechanism is pressed against the edges of the perforations with sufficient load to enable the chambers to be filled with aqueous mixtures and to be heated to 200° C. without the occurrence of leakage. Top and bottom plates and closing mechanisms can be integrated so that all the perforations are sealed simultaneously when these are placed at the top and bottom sides of the central block.

    Abstract translation: 本发明涉及一种多级高压釜及其设计的细节，一种在多重高压釜中自动合成沸石的方法，此外，涉及多个高压釜用于自动化合成的应用，其在多个合成中同时被优化 沸石合成中的参数。 多压釜通常由压力容器/高压釜组成，压力容器/高压釜具有内衬有惰性材料的10至10,000个小的分开的室，每个室通常具有0.2-2ml的体积。 这些室优选地在中心块中形成为穿孔穿孔，并且穿孔由球，隔片，塞子等密封，这些孔，隔片，塞子等放置在每个贯穿孔的底部和顶部。 将金属板放置在中央块的上方和下方，使得闭合机构以足够的负载压靠穿孔的边缘，以使得腔室能够充满含水混合物并且被加热到200℃，而不会发生泄漏 。 顶板和底板和关闭机构可以集成，使得当这些孔被放置在中心块的顶部和底部侧面时，所有的穿孔同时被密封。

    Single-wall carbon nanotubes from high pressure CO
    146.
    发明申请
    Single-wall carbon nanotubes from high pressure CO 有权
    单壁碳纳米管由高压CO

    公开(公告)号：US20040223901A1

    公开(公告)日：2004-11-11

    申请号：US10730630

    申请日：2003-12-08

    Applicant: William Marsh Rice University

    Inventor： Richard E. Smalley ,  Ken A. Smith ,  Daniel T. Colbert ,  Pavel Nikolaev ,  Michael J. Bronikowski ,  Robert K. Bradley ,  Frank Rohmund

    IPC: D01F009/12

    CPC classification number: B01J4/002 ,  B01J3/04 ,  B01J3/042 ,  B01J19/121 ,  B01J19/26 ,  B01J2219/0875 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/36 ,  D01F9/1278 ,  Y10S977/75 ,  Y10S977/751 ,  Y10S977/843 ,  Y10S977/845 ,  Y10S977/951 ,  Y10T428/30

    Abstract: The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000null C.) and a catalyst precursor gas (e.g., Fe(CO)5) in CO that is kept below the catalyst precursor decomposition temperature to a mixing zone. In this mixing zone, the catalyst precursor is rapidly heated to a temperature that results in (1) precursor decomposition, (2) formation of active catalyst metal atom clusters of the appropriate size, and (3) favorable growth of SWNTs on the catalyst clusters. Preferably a catalyst cluster nucleation agency is employed to enable rapid reaction of the catalyst precursor gas to form many small, active catalyst particles instead of a few large, inactive ones. Such nucleation agencies can include auxiliary metal precursors that cluster more rapidly than the primary catalyst, or through provision of additional energy inputs (e.g., from a pulsed or CW laser) directed precisely at the region where cluster formation is desired. Under these conditions SWNTs nucleate and grow according to the Boudouard reaction. The SWNTs thus formed may be recovered directly or passed through a growth and annealing zone maintained at an elevated temperature (e.g., 1000null C.) in which tubes may continue to grow and coalesce into ropes.

    Abstract translation: 本发明公开了在被保留的CO中提供已被预热（例如，约1000℃）的高压（例如，30个大气压）的CO和催化剂前体气体（例如，Fe（CO）5）的过程。 催化剂前体分解温度低于混合区。 在该混合区中，将催化剂前体快速加热到导致（1）前体分解的温度，（2）形成适当尺寸的活性催化剂金属原子簇，和（3）在催化剂簇上的SWNT的有利生长 。 优选使用催化剂簇成核剂来使催化剂前体气体快速反应以形成许多小的活性催化剂颗粒，而不是几个大的非活性催化剂颗粒。 这样的成核机构可以包括比主要催化剂更快地聚集的辅助金属前体，或者通过提供精确地指向需要簇形成的区域的额外的能量输入（例如来自脉冲或CW激光）。 在这些条件下，SWNT根据Boudouard反应成核并生长。 如此形成的SWNT可以直接回收或通过保持在高温（例如1000℃）的生长和退火区域，其中管可以继续生长并聚结成绳索。

    Gas-phase nucleation and growth of single-wall carbon nanotubes from high pressure CO
    147.
    发明授权
    Gas-phase nucleation and growth of single-wall carbon nanotubes from high pressure CO 有权
    单壁碳纳米管从高压CO气相成核和生长

    公开(公告)号：US06761870B1

    公开(公告)日：2004-07-13

    申请号：US09830642

    申请日：2002-07-01

    Applicant: Richard E. Smalley ,  Ken A. Smith ,  Daniel T. Colbert ,  Pavel Nikolaev ,  Michael J. Bronikowski ,  Robert K. Bradley ,  Frank Rohmund

    Inventor： Richard E. Smalley ,  Ken A. Smith ,  Daniel T. Colbert ,  Pavel Nikolaev ,  Michael J. Bronikowski ,  Robert K. Bradley ,  Frank Rohmund

    IPC: D01F912

    CPC classification number: B01J4/002 ,  B01J3/04 ,  B01J3/042 ,  B01J19/121 ,  B01J19/26 ,  B01J2219/0875 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/36 ,  D01F9/1278 ,  Y10S977/75 ,  Y10S977/751 ,  Y10S977/843 ,  Y10S977/845 ,  Y10S977/951 ,  Y10T428/30

    Abstract: The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000° C.) and a catalyst precursor gas (e.g., Fe(CO)5) in CO that is kept below the catalyst precursor decomposition temperature to a mixing zone. In this mixing zone, the catalyst precursor is rapidly heated to a temperature that results in (1) precursor decomposition, (2) formation of active catalyst metal atom clusters of the appropriate size, and (3) favorable growth of SWNTs on the catalyst clusters. Preferably a catalyst cluster nucleation agency is employed to enable rapid reaction of the catalyst precursor gas to form many small, active catalyst particles instead of a few large, inactive ones. Such nucleation agencies can include auxiliary metal precursors that cluster more rapidly than the primary catalyst, or through provision of additional energy inputs (e.g., from a pulsed or CW laser) directed precisely at the region where cluster formation is desired. Under these conditions SWNTs nucleate and grow according to the Boudouard reaction. The SWNTs thus formed may be recovered directly or passed through a growth and annealing zone maintained at an elevated temperature (e.g., 1000° C.) in which tubes may continue to grow and coalesce into ropes.

    Abstract translation: 本发明公开了在被保留的CO中提供已被预热（例如，约1000℃）的高压（例如，30个大气压）的CO和催化剂前体气体（例如，Fe（CO）5）的过程。 催化剂前体分解温度低于混合区。 在该混合区中，将催化剂前体快速加热到导致（1）前体分解的温度，（2）形成适当尺寸的活性催化剂金属原子簇，和（3）在催化剂簇上的SWNT的有利生长 。 优选使用催化剂簇成核剂来使催化剂前体气体快速反应以形成许多小的活性催化剂颗粒，而不是几个大的非活性催化剂颗粒。 这样的成核机构可以包括比主要催化剂更快地聚集的辅助金属前体，或者通过提供精确地指向需要簇形成的区域的额外的能量输入（例如来自脉冲或CW激光）。 在这些条件下，SWNT根据Boudouard反应成核并生长。 如此形成的SWNT可以直接回收或通过保持在高温（例如1000℃）的生长和退火区域，其中管可以继续生长并聚结成绳索。

    Power module for an autoclave
    148.
    发明申请
    Power module for an autoclave 失效
    高压灭菌器的电源模块

    公开(公告)号：US20040065216A1

    公开(公告)日：2004-04-08

    申请号：US10416136

    申请日：2003-10-14

    Inventor： Vladimir Isakovich Snop

    IPC: D21F005/00

    CPC classification number: B01J3/03 ,  B01J3/04 ,  B01J3/048 ,  B01J19/02 ,  B01J2219/0286 ,  B22F3/003 ,  B22F3/15 ,  B22F2003/153 ,  B30B11/002

    Abstract: The invention relates to the field of powder metallurgy, in particular to the design of autoclaves for manufacturing of composite materials by treatment of workpieces of discrete materials, mostly powders, at high pressures and temperatures. The autoclave module contains the vessel that includes hermetically sealed movable end closures, the rams restricting the axial shift of these closures, and the pressure yoke with columns and winding made of high-strength steel wire, whereby the pressure yoke is made in the form of three oval yoke sectionsnulltwo lateral sections encompassing the rams, and one central section encompassing the rams and the vessel with closures, all of them equidistant from each other on the ram's length, whereby each of the lateral oval sections is made in such a way as to allow opposite shift while the central section is made in such a way as to allow shift in the direction which is perpendicular to the vessel's axis and parallel to the rams' axis, for a length ensuring free withdrawal of the rams and the end closures. The invention allows to reduce the metal consumption of the pressure module by a factor of 2 to 3 compared to the known analogs, and to enhance the reliability and the operational safety of the apparatus.

    Abstract translation: 本发明涉及粉末冶金领域，特别涉及通过在高压和高温下处理分散材料的工件（主要是粉末）来制造复合材料的高压釜的设计。 高压灭菌器模块包含容器，其包括气密密封的可动端盖，限制这些封闭件的轴向移动的压杆以及由高强度钢丝制成的柱和绕组的压力轭，由此压力轭以 三个椭圆形的轭状部分 - 两个横向部分，包括公柱，以及一个中心部分，包括公羊和具有封闭件的容器，它们都在公羊长度上彼此等距离，由此每个侧面的椭圆形部分以这种方式制成 以允许相对移动，同时中心部分以允许垂直于容器的轴线并且平行于公柱的轴线的方向移动的方式进行，以确保游离体和端部封闭件的自由取出的长度 。 与已知的类似物相比，本发明允许将压力模块的金属消耗降低2至3倍，并提高装置的可靠性和操作安全性。

    Installation and process for the preparation of urea
    149.
    发明授权
    Installation and process for the preparation of urea 有权
    安装和制备尿素的过程

    公开(公告)号：US06680407B2

    公开(公告)日：2004-01-20

    申请号：US10239744

    申请日：2002-09-26

    Applicant: Johannes Henricus Mennen

    Inventor： Johannes Henricus Mennen

    IPC: C07C27304

    CPC classification number: C07C273/04 ,  B01J3/04 ,  B01J2219/00033 ,  B01J2219/00063 ,  B01J2219/00076 ,  B01J2219/00182 ,  B01J2219/00761 ,  B01J2219/185 ,  B01J2219/1943

    Abstract: The invention relates to an installation for the preparation of urea from ammonia and carbon dioxide, the installation comprising two reactor sections in a vertically placed combined reactor and a high-pressure condenser section. The installation may comprise a vertically placed combined reactor, with the two reactor sections being separated by a high-pressure condenser section. In another embodiment the installation comprises a vertically placed combined reactor that comprises two reactor sections and a high-pressure condenser section placed outside the reactor. The invention also relates to a process for the preparation of urea in this installation. This involves feeding the gas stream leaving the stripper wholly or partly to the high-pressure condenser section of the installation. Preferably, a portion of the gas stream leaving the scrubber is fed to the second reactor section in the vertically placed combined reactor via an ammonia-driven ejector.

    Abstract translation: 本发明涉及一种用于从氨和二氧化碳制备尿素的装置，该装置包括在垂直放置的组合反应器和高压冷凝器部分中的两个反应器部分。 该装置可以包括垂直放置的组合反应器，两个反应器部分由高压冷凝器部分分开。 在另一个实施例中，该装置包括垂直放置的组合反应器，其包括两个反应器部分和放置在反应器外部的高压冷凝器部分。 本发明还涉及在该装置中制备尿素的方法。 这涉及将离开汽提塔的气流全部或部分送入设备的高压冷凝器部分。 优选地，离开洗涤器的气流的一部分经由氨驱动的喷射器进入垂直放置的组合反应器中的第二反应器部分。

Patent Agency Ranking