公开(公告)号：US20150147257A1

公开(公告)日：2015-05-28

申请号：US14405858

申请日：2013-05-29

Applicant: DOW CORNING CORPORATION

Inventor： Jeffrey Anderson ,  James A. Casey ,  Vasgen Aram Shamamian

IPC: B01J19/00 ,  C01B33/02 ,  C01B33/00 ,  C01B33/021

CPC classification number: B01J19/00 ,  B01J2/04 ,  B01J19/0006 ,  B01J2219/00164 ,  C01B33/00 ,  C01B33/02 ,  C01B33/021 ,  C09K11/59 ,  H01J37/32082 ,  H01J2237/339

Abstract: A system for preparing nanoparticles is described. The system can include a reactor for producing a nanoparticle aerosol comprising nanoparticles in a gas. The system also includes a diffusion pump that has a chamber with an inlet and an outlet. The inlet of the chamber is in fluid communication with an outlet of the reactor. The diffusion pump also includes a reservoir in fluid communication with the chamber for supporting a diffusion pump fluid and a heater for vaporizing the diffusion pump fluid in the reservoir to a vapor. In addition, the diffusion pump has a jet assembly in fluid communication with the reservoir having a nozzle for discharging the vaporized diffusion pump fluid into the chamber. The system can further include a vacuum pump in fluid communication with the outlet of the chamber. A method of preparing nanoparticles is also provided.

Abstract translation: 描述了制备纳米颗粒的系统。 该系统可以包括用于产生包含气体中的纳米颗粒的纳米颗粒气溶胶的反应器。 该系统还包括具有入口和出口的室的扩散泵。 室的入口与反应器的出口流体连通。 扩散泵还包括与腔室流体连通的用于支撑扩散泵流体的储存器和用于将储存器中的扩散泵流体蒸发成蒸气的加热器。 此外，扩散泵具有与储存器流体连通的喷射组件，其具有用于将蒸发的扩散泵流体排放到室中的喷嘴。 该系统还可以包括与腔室的出口流体连通的真空泵。 还提供了制备纳米颗粒的方法。

公开(公告)号：US20070274893A1

公开(公告)日：2007-11-29

申请号：US11664667

申请日：2005-10-03

Applicant: Neil Wright ,  Xiaoming Duan ,  Ba Phan

Inventor： Neil Wright ,  Xiaoming Duan ,  Ba Phan

IPC: H05H1/30 ,  H01J37/32

CPC classification number: H01J37/32357 ,  H01J37/32192 ,  H01J2237/339 ,  H05H1/30

Abstract: A microwave plasma generating apparatus (10) has a microwave cavity (20) coupled to a microwave source (22) by a wave guide (24). Within the cavity (20) is a reaction tube (30) defining a plasma cavity (40). A gas inlet manifold (50) is provided at the top of the reaction tube (30), which is formed so as to introduce plasma gas tangentially to the longitudinal axis of the plasma. Plasma gas is thus injected into the reaction tube (30) so that it flows in a swirled manner, that is, in the form of a vortex. This prevents overheating of the reaction tube (30).

Abstract translation: 微波等离子体产生装置（10）具有通过波导（24）耦合到微波源（22）的微波空腔（20）。 在空腔（20）内是限定等离子体腔（40）的反应管（30）。 气体入口歧管（50）设置在反应管（30）的顶部，其形成为等离子体气体相对于等离子体的纵向轴线切向。 因此，等离子体气体被注入到反应管（30）中，使得其以漩涡的方式流动，即以涡流的形式流动。 这防止了反应管（30）的过热。

公开(公告)号：US20050233380A1

公开(公告)日：2005-10-20

申请号：US11110341

申请日：2005-04-19

Applicant: David Pesiri ,  Kevin Walter

Inventor： David Pesiri ,  Kevin Walter

IPC: B01J19/00 ,  B01J19/08 ,  B22F9/12 ,  B22F9/14 ,  B22F9/28 ,  C12P21/06 ,  C23C16/00 ,  C23C16/44 ,  G01N1/20 ,  G01N15/00 ,  G01N33/00 ,  G01N33/53

CPC classification number: B22F9/14 ,  B01J19/0046 ,  B01J19/088 ,  B01J2219/00286 ,  B01J2219/00495 ,  B01J2219/00695 ,  B01J2219/00698 ,  B01J2219/00713 ,  B01J2219/00745 ,  B01J2219/00756 ,  B01J2219/0869 ,  B01J2219/0875 ,  B01J2219/0877 ,  B01J2219/0879 ,  B01J2219/0881 ,  B01J2219/0894 ,  B22F9/12 ,  B22F9/28 ,  G01N1/2035 ,  G01N2015/0096 ,  G01N2033/0091 ,  H01J2237/339

Abstract: A method of and apparatus for producing a plurality of powder compositions, both stoichiometric and non-stoichiometric, is disclosed. The method includes the steps of introducing a plurality of materials into a particle production system under a first set of operating parameters, introducing the plurality of materials into the particle production system under a second set of operating parameters wherein at least one operating parameter of the first set is changed to form the second set, and sampling at least a portion of an output mixture representative of each of the first set of operating conditions and the second set of operating conditions. The apparatus includes a reactor, dispensing devices for supplying materials to the reactor, and other structures. The apparatus is preferably configurable via modification of operating parameters to produce a range of possible compositions for a given plurality of input materials.

Abstract translation: 公开了一种制备多种化学计量和非化学计量的粉末组合物的方法和装置。 该方法包括以下第一组操作参数将多种材料引入颗粒生产系统中的步骤：在第二组操作参数下将多种材料引入颗粒生产系统中，其中第一组操作参数的至少一个操作参数 将所述组被改变以形成所述第二组，并且对代表所述第一组操作条件和所述第二组操作条件中的每一个的输出混合的至少一部分进行采样。 该装置包括反应器，用于向反应器供应材料的分配装置和其它结构。 该装置优选通过修改操作参数来配置，以产生给定多个输入材料的可能组合的范围。

公开(公告)号：US20030172772A1

公开(公告)日：2003-09-18

申请号：US10384586

申请日：2003-03-11

Applicant: Materials Modification, Inc.

Inventor： Krupashankara M. Sethuram ,  Raja Kalyanaraman

IPC: C22B004/08 ,  C22B009/22

CPC classification number: H05B6/806 ,  B01J19/126 ,  B01J2219/00094 ,  B01J2219/0883 ,  B01J2219/0894 ,  B01J2219/1227 ,  B01J2219/1269 ,  B22F1/0018 ,  B22F3/105 ,  B22F9/305 ,  B22F2999/00 ,  B82Y30/00 ,  C01B13/28 ,  C01B21/06 ,  C01B21/0724 ,  C01B32/90 ,  C01G23/07 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  H01J37/32192 ,  H01J37/3244 ,  H01J2237/339 ,  H05B6/70 ,  H05H1/46 ,  H05H2001/463 ,  B22F2202/13

Abstract: The present invention relates to the production of ultrafine powders using a microwave plasma apparatus and chemical synthesis technique. Microwaves generated by a magnetron (1) are passed through waveguides (2) before they arrive at the head of a plasmatron (3). These high energy microwaves ionize a plasma gas, thus releasing large amounts of energy. The energy thus released is utilized to initiate and sustain chemical reactions between the desired elements being pumped in a spiral pattern into the plasmatron (3). The reaction products are quenched rapidly in a reactor column (4) into ultrafine powders.

公开(公告)号：US20030121887A1

公开(公告)日：2003-07-03

申请号：US10186826

申请日：2002-07-01

Inventor： James F. Garvey ,  Gary S. Tompa ,  Stuart G. MacDonald ,  Robert L. DeLeon

IPC: C23F001/00

CPC classification number: B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C23C14/0021 ,  C23C14/228 ,  C23C14/28 ,  C23C14/325 ,  C23C14/54 ,  C30B25/00 ,  C30B29/02 ,  C30B29/605 ,  H01J37/32055 ,  H01J2237/339

Abstract: The present invention is a method and apparatus for the synthesis of multi-component substances, comprising entities of at least two elements, molecules, grains, crystals, structural units, or phases of matter, in which the scale of the distribution of the elements, molecules, or phases of matter may range from on the order of nanometers or less, to about one millimeter, depending upon the specific materials and process conditions that are chosen. The method and apparatus of the present invention further provides processes for preparing these compositions of matter as thin films or particles.

Abstract translation: 本发明是用于合成多组分物质的方法和装置，其包括至少两种元素，分子，晶粒，晶体，结构单元或物质相的实体，其中元素分布的规模， 分子或物质的相可以在几纳米或更小的量级至约一毫米的范围内，这取决于所选择的具体材料和工艺条件。 本发明的方法和装置还提供了制备这些物质组合物作为薄膜或颗粒的方法。

公开(公告)号：US06409851B1

公开(公告)日：2002-06-25

申请号：US09262848

申请日：1999-03-05

Applicant: Krupashankara M. Sethuram ,  Raja Kalyanaraman

Inventor： Krupashankara M. Sethuram ,  Raja Kalyanaraman

IPC: C23C16511

CPC classification number: H05B6/806 ,  B01J19/126 ,  B01J2219/00094 ,  B01J2219/0883 ,  B01J2219/0894 ,  B01J2219/1227 ,  B01J2219/1269 ,  B22F1/0018 ,  B22F3/105 ,  B22F9/305 ,  B22F2999/00 ,  B82Y30/00 ,  C01B13/28 ,  C01B21/06 ,  C01B21/0724 ,  C01B32/90 ,  C01G23/07 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  H01J37/32192 ,  H01J37/3244 ,  H01J2237/339 ,  H05B6/70 ,  H05H1/46 ,  H05H2001/463 ,  B22F2202/13

Abstract: The present invention relates to the production of ultrafine powders using a microwave plasma apparatus and chemical synthesis technique. Microwaves generated by a magnetron (1) are passed through waveguides (2) before they arrive at the head of a plasmatron (3). These high energy microwaves ionize a plasma gas, thus releasing large amounts of energy. The energy thus released is utilized to initiate and sustain chemical reactions between the desired elements being pumped in a spiral pattern into the plasmatron (3). The reaction products are quenched rapidly in a reactor column (4) into ultrafine powders.

Abstract translation: 本发明涉及使用微波等离子体装置和化学合成技术生产超细粉末。 由磁控管（1）产生的微波在到达等离子体（3）的头部之前通过波导（2）。 这些高能微波使等离子体气体离子化，从而释放大量的能量。 由此释放的能量被用于启动并维持以螺旋图案泵送到等离子体（3）中的期望元件之间的化学反应。 将反应产物在反应器塔（4）中快速淬灭成超细粉末。