公开(公告)号：US20150315028A1

公开(公告)日：2015-11-05

申请号：US14799705

申请日：2015-07-15

Applicant: SunEdison, Inc.

Inventor： Satish Bhusarapu ,  Puneet Gupta ,  Yue Huang

IPC: C01B33/029

CPC classification number: C01B33/03 ,  C01B33/027 ,  C01B33/029 ,  F23G5/30 ,  F23G7/06 ,  F23G2202/30 ,  F23G2209/142

Abstract: Processes for producing polycrystalline silicon by thermal decomposition of silane are disclosed. The processes generally involve thermal decomposition of silane in a fluidized bed reactor operated at reaction conditions that result in a high rate of productivity relative to conventional production processes.

Abstract translation: 公开了通过硅烷热分解生产多晶硅的方法。 该方法通常涉及在反应条件下操作的流化床反应器中硅烷的热分解，其导致相对于常规生产方法的高生产率。

公开(公告)号：US09114996B2

公开(公告)日：2015-08-25

申请号：US13628277

申请日：2012-09-27

Applicant: SunEdison, Inc.

Inventor： Satish Bhusarapu ,  Puneet Gupta ,  Yue Huang

IPC: C01B33/029 ,  C01B33/03 ,  C01B33/027 ,  B01J8/18 ,  F23C10/18

CPC classification number: C01B33/027 ,  B01J8/1809 ,  B01J8/1827 ,  B01J8/1836 ,  B01J2208/00398 ,  B01J2208/00407 ,  B01J2208/00539 ,  C01B33/029 ,  C01B33/03 ,  F23C10/18

Abstract: Processes for producing polycrystalline silicon by thermal decomposition of silane are disclosed. The processes generally involve thermal decomposition of silane in a fluidized bed reactor operated at reaction conditions that result in a high rate of productivity relative to conventional production processes.

Abstract translation: 公开了通过硅烷热分解生产多晶硅的方法。 该方法通常涉及在反应条件下操作的流化床反应器中硅烷的热分解，其导致相对于常规生产方法的高生产率。

公开(公告)号：US09527752B2

公开(公告)日：2016-12-27

申请号：US13751294

申请日：2013-01-28

Applicant: SunEdison, Inc.

Inventor： Puneet Gupta ,  Satish Bhusarapu

IPC: C01F7/50 ,  C01B33/107

CPC classification number: C01F7/50 ,  C01B33/10705

Abstract: Methods for producing aluminum trifluoride by acid digestion of fluoride salts of alkali metal or alkaline earth metal and aluminum, optionally, in the presence of a source of silicon; methods for producing silane that include acid digestion of by-products of silane production to produce aluminum trifluoride.

公开(公告)号：US20160333474A1

公开(公告)日：2016-11-17

申请号：US14709856

申请日：2015-05-12

Applicant: SunEdison, Inc.

Inventor： Vivek Tomar ,  Lee William Ferry ,  Puneet Gupta ,  Satish Bhusarapu ,  Richard G. Schrenker

IPC: C23C16/44 ,  C23C16/24 ,  C23C16/442

CPC classification number: C23C16/4409 ,  B01J3/03 ,  B01J3/042 ,  C23C16/24 ,  C23C16/442

Abstract: Clamping assemblies for sealing an annular chamber and reaction chamber of a reactor system are disclosed. The clamping assemblies may include actuators that are symmetrically arranged in two or more independently controllable groups of actuators.

Abstract translation: 公开了用于密封反应器系统的环形室和反应室的夹紧组件。 夹紧组件可以包括对称地布置在两个或更多个可独立控制的致动器组中的致动器。

公开(公告)号：US09487406B2

公开(公告)日：2016-11-08

申请号：US14622326

申请日：2015-02-13

Applicant: SunEdison, Inc.

Inventor： Puneet Gupta ,  Henry F. Erk ,  Alexis Grabbe

IPC: B01J8/00 ,  B01J8/18 ,  B01J19/00 ,  B01J19/08 ,  C01B33/00 ,  C01B33/04 ,  C01B33/08 ,  C01B33/10 ,  C25B1/00 ,  C01B33/107

CPC classification number: C01B33/043 ,  B01J8/18 ,  B01J19/087 ,  B01J2208/00946 ,  B01J2219/0803 ,  C01B33/107 ,  C01B33/1071 ,  C01B33/10742 ,  C25B1/006

Abstract: Methods and systems for producing silane that use electrolysis to regenerate reactive components therein are disclosed. The methods and systems may be substantially closed-loop with respect to halogen, an alkali or alkaline earth metal and/or hydrogen.

公开(公告)号：US09394180B2

公开(公告)日：2016-07-19

申请号：US13871205

申请日：2013-04-26

Applicant: SunEdison, Inc.

Inventor： Satish Bhusarapu ,  Yue Huang ,  Puneet Gupta

IPC: C01B33/03 ,  B01J8/24 ,  C01B33/039 ,  C01B33/107

CPC classification number: C01B33/03 ,  B01J8/24 ,  C01B33/039 ,  C01B33/10742 ,  C01B33/10763 ,  C01B33/10773

Abstract: Production of polycrystalline silicon in a substantially closed-loop process is disclosed. The processes generally include decomposition of trichlorosilane produced from metallurgical grade silicon.

公开(公告)号：US20150151977A1

公开(公告)日：2015-06-04

申请号：US14622326

申请日：2015-02-13

Applicant: SUNEDISON, INC.

Inventor： Puneet Gupta ,  Henry F. Erk ,  Alexis Grabbe

IPC: C01B33/04 ,  B01J8/18 ,  B01J19/08

CPC classification number: C01B33/043 ,  B01J8/18 ,  B01J19/087 ,  B01J2208/00946 ,  B01J2219/0803 ,  C01B33/107 ,  C01B33/1071 ,  C01B33/10742 ,  C25B1/006

Abstract: Methods and systems for producing silane that use electrolysis to regenerate reactive components therein are disclosed. The methods and systems may be substantially closed-loop with respect to halogen, an alkali or alkaline earth metal and/or hydrogen.

Abstract translation: 公开了用于生产使用电解以再生其中的反应性组分的硅烷的方法和系统。 所述方法和系统可以相对于卤素，碱金属或碱土金属和/或氢基本上是闭环的。

公开(公告)号：US20150110702A1

公开(公告)日：2015-04-23

申请号：US14582256

申请日：2014-12-24

Applicant: SunEdison, Inc.

Inventor： Puneet Gupta ,  Yue Huang ,  Satish Bhusarapu

IPC: C01B33/027

CPC classification number: C01B33/027 ,  C01B33/03

Abstract: Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.

Abstract translation: 公开了在基本闭环过程和系统中生产多晶硅。 方法和系统通常涉及三氯硅烷的歧化以产生硅烷或二氯硅烷以及硅烷或二氯硅烷的热分解以产生多晶硅。

公开(公告)号：US10407309B2

公开(公告)日：2019-09-10

申请号：US14582256

申请日：2014-12-24

Applicant: SunEdison, Inc.

Inventor： Puneet Gupta ,  Yue Huang ,  Satish Bhusarapu

IPC: C01B33/027 ,  C01B33/03

Abstract: Production of polycrystalline silicon in substantially closed-loop processes and systems is disclosed. The processes and systems generally involve disproportionation of trichlorosilane to produce silane or dichlorosilane and thermal decomposition of silane or dichlorosilane to produce polycrystalline silicon.

公开(公告)号：US10252916B2

公开(公告)日：2019-04-09

申请号：US14840514

申请日：2015-08-31

Applicant: SunEdison, Inc.

Inventor： Sathy Ponnuswamy ,  Nageswara Reddy Kota ,  Satish Bhusarapu ,  Puneet Gupta

IPC: C01B33/027 ,  C01B33/107 ,  C01B33/04 ,  B01J19/24 ,  B01D3/14

Abstract: Methods for separating halosilanes that involve use of a distillation column having a partition that divides the column into portions for producing three product fractions are disclosed. Methods and systems for producing silane by disproportionation of halosilanes that use such columns and methods for producing polycrystalline silicon are also disclosed.