METHOD AND TRANSFERRED ARC PLASMA SYSTEM FOR PRODUCTION OF FINE AND ULTRAFINE POWDERS
    2.
    发明申请
    METHOD AND TRANSFERRED ARC PLASMA SYSTEM FOR PRODUCTION OF FINE AND ULTRAFINE POWDERS 审中-公开
    用于生产细粉和超细粉的方法和转移ARC等离子体系统

    公开(公告)号:WO00010756A1

    公开(公告)日:2000-03-02

    申请号:PCT/CA1999/000759

    申请日:1999-08-16

    Abstract: The present invention is concerned with a method for the production of fine and ultrafine powders of various materials such as metals, alloys, ceramics, composites etc., through a transferred arc plasma system. The method comprises vaporizing or decomposing the material in the plasma reactor, condensing the vapor in a quench tube comprising two sections, the first one for indirectly cooling or heating the vapor, and the second one for directly cooling the vapor. The powder is recovered in a conventional collection unit. The two step condensation in the quench tube allows a substantial control of powder properties like crystallinity, size distribution and mean particle size.

    Abstract translation: 本发明涉及一种通过转移电弧等离子体系生产金属,合金,陶瓷,复合材料等各种材料的精细和超细粉末的方法。 该方法包括蒸发或分解等离子体反应器中的材料,将蒸气冷凝在包括两个部分的骤冷管中,第一部分用于间接冷却或加热蒸气,第二部分用于直接冷却蒸气。 粉末在常规收集单元中回收。 淬火管中的两步冷凝可以显着控制粉末性能,如结晶度,粒度分布和平均粒径。

    CATALYTICALLY ACCELERATED GASEOUS PHASE REACTIONS
    3.
    发明申请
    CATALYTICALLY ACCELERATED GASEOUS PHASE REACTIONS 审中-公开
    气相催化反应的加速

    公开(公告)号:WO99037692A1

    公开(公告)日:1999-07-29

    申请号:PCT/CH1999/000029

    申请日:1999-01-22

    Abstract: In a process for carrying out a reaction in the gaseous phase catalytically accelerated by anion or cations, the catalyst is introduced into the gaseous reaction mixture as a free anion or cation without the corresponding counter-ion, and at least substantially without solvent. The catalyst is activated in a solvent and then the solvent and the counter-ion are substantially removed before the catalyst is introduced into the reaction mixture. This process is particularly suitable for the production of polyolefins.

    Abstract translation: 在用于进行阴离子或阳离子催化加速反应在气相中的方法,该催化剂是免费的介绍,作为游离的阴离子或阳离子不溶剂相应抗衡离子和至少在很大程度上在气态反应混合物中。 该催化剂在溶剂中活化,然后将溶剂和到反应混合物中之前,引入抗衡离子主要是除去。 本发明提出的方法特别适合于生产聚烯烃。

    MULTIPLE ARC PLASMA DEVICE WITH CONTINUOUS GAS JET
    7.
    发明申请
    MULTIPLE ARC PLASMA DEVICE WITH CONTINUOUS GAS JET 审中-公开
    具有连续气体喷射的多弧等离子体装置

    公开(公告)号:WO1986002024A1

    公开(公告)日:1986-04-10

    申请号:PCT/US1985001823

    申请日:1985-09-25

    Abstract: A multiple cathode (Fig. 1, 12, 13, 14) DC arc plasma generator (11) arrangement (10) is used in connection with a single anode for thermal arc plasma processing of materials. A nozzle (32) is provided to introduce a gas in approximately the center of the multiple cathodes (12, 13, 14), towards the anode (11). The nozzle (32) injects the gas into the center of the plasma column (39) generated between the cathodes (12, 13, 14) and anode (11) to stabilize such column and affect the self-induced electrode jets. This provides control of the heat transfer to the anode (11) and permits feeding of particulate matter (41) into the core (40) of the plasma column (39) to enhance inflight processing (melting and/or chemical reaction) of the matter. A set of gas nozzles (56) positioned radially about the anode (11) may be employed for feeding of particulate matter at the anode surface.

    Abstract translation: 多阴极(图1,12,13,14)直流电弧等离子体发生器(11)布置(10)用于材料的热电弧等离子体处理的单个阳极。 提供喷嘴(32)以将多个阴极(12,13,14)的大致中心的气体引向阳极(11)。 喷嘴(32)将气体注入在阴极(12,13,14)和阳极(11)之间产生的等离子体柱(39)的中心,以稳定该柱并影响自感应电极射流。 这提供了对阳极(11)的热传递的控制,并且允许将颗粒物质(41)进料到等离子体塔(39)的核心(40)中以增强物质的飞行加工(熔化和/或化学反应) 。 围绕阳极(11)径向设置的一组气体喷嘴(56)可用于在阳极表面处输送颗粒物质。

    A METHOD FOR PRODUCING GAS-PHASE METAL ANIONS
    10.
    发明申请
    A METHOD FOR PRODUCING GAS-PHASE METAL ANIONS 审中-公开
    一种生产气相金属阴离子的方法

    公开(公告)号:WO2011119740A1

    公开(公告)日:2011-09-29

    申请号:PCT/US2011/029636

    申请日:2011-03-23

    Abstract: Monatomic metal anions are generated in the gas phase by collision-induced dissociation of the anions [26] of a dicarboxylic acid salt of the metal. This method is applicable to a number of metals, including sodium, potassium, cesium, and silver. The metal anions produced in this way can subsequently be stored in an ion trap [88] or transmitted as a focused beam [52]. The metal anions of this invention undergo collisional cooling and have low kinetic energy, which distinguishes them from ions produced by other high energy processes (with kinetic energy in excess of 1 keV). Metal anions so produced can be used to pattern nanoscale features on surfaces [56], used as electron transfer agents or reducing agents in ion-molecule reactions, or used for surface [122] modification of biomaterials [124].

    Abstract translation: 通过金属二羧酸盐的阴离子[26]的碰撞诱导解离,在气相中产生单原子金属阴离子。 该方法适用于许多金属,包括钠,钾,铯和银。 以这种方式产生的金属阴离子可以随后存储在离子阱[88]中或作为聚焦束[52]传输。 本发明的金属阴离子经历碰撞冷却并且具有低的动能,其将它们与由其他高能过程(动能超过1keV)产生的离子区分开。 如此生产的金属阴离子可用于在表面上形成纳米尺度特征[56],用作离子分子反应中的电子转移剂或还原剂,或用于生物材料的表面改性[124]。

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