公开(公告)号：US20150104369A1

公开(公告)日：2015-04-16

申请号：US14052559

申请日：2013-10-11

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: C01B33/027 ,  B01J8/24

CPC classification number: C01B33/027 ,  Y10T137/0318

Abstract: A method and system for reduction or mitigation of metal contamination of polycrystalline silicon are disclosed. A conveyance device comprising a flexible synthetic resin tube having an inner surface at least partially coated with an inner layer comprising elastomeric microcellular polyurethane is disclosed for use in fluidized bed reactor operations associated with manufacture and product handling procedures for ultra pure granular polysilicon. Use of the conduit to effect passage of the polysilicon mitigates foreign metal contact contamination from sources otherwise typically present in such manufacturing units.

Abstract translation: 公开了减少或减轻多晶硅金属污染的方法和系统。 公开了一种包括柔性合成树脂管的输送装置，其具有至少部分地涂覆有包含弹性体微孔聚氨酯的内层的内表面的内表面，用于与用于超纯颗粒状多晶硅的制造和产品处理程序相关的流化床反应器操作。 使用导管来实现多晶硅通过，从而减少外来金属接触污染物，否则通常存在于这样的制造单元中。

公开(公告)号：US20200240013A1

公开(公告)日：2020-07-30

申请号：US16745223

申请日：2020-01-16

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: C23C16/44 ,  B01J2/00 ,  C01B33/029 ,  C23C16/24

Abstract: An apparatus for producing particles or material-coated particles by decomposition of precursor gas in a stirred or mixed particle bed comprises a reactor vessel, an actuator assembly comprising a shaft disposed at least partially within the reactor vessel, and an actuator element coupled to the shaft and rotatable therewith. The apparatus further comprises a precursor gas supply in fluid communication with the actuator assembly. The actuator assembly is configured to circulate seed particles of a seed particle bed in the reactor vessel with the actuator element, and to introduce precursor gas from the gas supply to the seed particle bed, when seed particles are received in the reactor vessel.

公开(公告)号：US10407310B2

公开(公告)日：2019-09-10

申请号：US15416291

申请日：2017-01-26

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen ,  Matthew J. Miller ,  Justin Johnston ,  Stein Julsrud ,  Sefa Yilmaz

IPC: C01B33/03 ,  C01B33/037 ,  F27D3/00 ,  F27D3/10 ,  F27D3/16

Abstract: This disclosure concerns embodiments of an annealing device and a method for annealing flowable, finely divided solids, such as annealing granular silicon to reduce a hydrogen content of the granular silicon. The annealing device comprises at least one tube through which flowable, finely divided solids are flowed downwardly. The tube includes a heating zone and (i) a residence zone below the heating zone, (ii) a cooling zone below the heating zone, or (iii) a residence zone below the heating zone and a cooling zone below the residence zone. An inert gas is flowed upwardly through the tube. The tube may be constructed from two or more tube segments. The annealing device may include a plurality of tubes arranged and housed within a shell. The annealing device and method are suitable for a continuous process.

公开(公告)号：US10287171B2

公开(公告)日：2019-05-14

申请号：US15147792

申请日：2016-05-05

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: B07B1/22 ,  B07B4/08 ,  C01B33/02 ,  B07B4/06 ,  B07B7/02

Abstract: Methods and apparatus for separating polysilicon powder from a mixture of granular polysilicon and polysilicon powder are disclosed. The method includes tumbling the polysilicon material in a tumbling device while flowing humidified sweep gas through the tumbling device. Also disclosed are compositions including granulate polysilicon or polycrystalline silicon, in some examples, including a coating layer consisting essentially of water.

公开(公告)号：US20180265365A1

公开(公告)日：2018-09-20

申请号：US15982311

申请日：2018-05-17

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: C01B33/02 ,  B07B1/22 ,  B07B4/08

CPC classification number: C01B33/02 ,  B07B1/22 ,  B07B4/06 ,  B07B4/08 ,  B07B7/02 ,  C01P2004/32 ,  C01P2004/60 ,  C01P2006/80

Abstract: Methods and apparatus for separating polysilicon powder from a mixture of granular polysilicon and polysilicon powder are disclosed. The method includes tumbling the polysilicon material in a tumbling device while flowing humidified sweep gas through the tumbling device. Also disclosed are compositions including granulate polysilicon or polycrystalline silicon, in some examples, including a coating layer consisting essentially of water.

公开(公告)号：US10040637B2

公开(公告)日：2018-08-07

申请号：US15333652

申请日：2016-10-25

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: B65G11/08 ,  B65G11/10 ,  B65G11/20 ,  B65G47/20 ,  B65G25/02

Abstract: An oscillatory feeder operable to convey a flowable solid material has a tubular body and a displaceable body segment. The tubular body has at least one first end, at least one second end opposite the first end and a displaceable body segment between the first and second ends. The displaceable body segment has a first fixable location positionable at a first fixed location and a second fixable location positionable at a second fixed location. The actuator is attached to the displaceable body segment and controllable to cause selected displacement of the body segment and attached actuator and corresponding selected flow of solid material within the displaceable body segment in a feed direction extending generally from the first end to the second end.

公开(公告)号：US20140131246A1

公开(公告)日：2014-05-15

申请号：US14075989

申请日：2013-11-08

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen ,  Robert M. Davidson

IPC: B65D85/00

CPC classification number: B65D25/14

Abstract: The present disclosure concerns reduction or mitigation of metal-contamination of polycrystalline silicon when held or stored in containers at least partially constructed of metal and/or having polysilicon contact surfaces at least partially of metal. In particular, the disclosure relates to a method of mitigating metal contamination of polycrystalline silicon from contact with a metal surface of a container by providing the surface with a protective layer comprising a microcellular elastomeric polyurethane.

Abstract translation: 本公开涉及当保存或储存在至少部分由金属构成的容器中和/或具有至少部分金属的多晶硅接触表面时，减少或减轻多晶硅的金属污染。 特别地，本公开涉及通过向表面提供包含微孔弹性体聚氨酯的保护层来减轻多晶硅的金属污染与容器的金属表面接触的方法。

公开(公告)号：US20140023578A1

公开(公告)日：2014-01-23

申请号：US13944722

申请日：2013-07-17

Applicant: REC Silicon Inc

Inventor： Robert J. Geertsen

IPC: C01B33/12

CPC classification number: C01B33/126 ,  B01J8/18 ,  B01J19/02 ,  B01J2208/00707 ,  B01J2219/0245 ,  C01B33/027 ,  Y10T137/0318

Abstract: A method and system for reduction or mitigation of metal contamination of polycrystalline silicon are disclosed. Metal contamination of granulate polycrystalline silicon, from contact with a metal surface of components of the supporting transportation and auxiliary infrastructure of a fluidized bed reactor unit, is mitigated by use of a protective coating comprising a microcellular elastomeric polyurethane.

Abstract translation: 公开了减少或减轻多晶硅金属污染的方法和系统。 通过使用包含微孔弹性体聚氨酯的保护涂层，减轻了与流化床反应器单元的支撑运输和辅助基础设施的部件的金属表面接触的颗粒状多晶硅的金属污染。