Method of preparing trichlorosilan
US-10065864-B2 · Sep 4, 2018 · US
Production method for trichlorosilane, and pipe
US11612869B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11612869-B2 |
| Application number | US-201816765071-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2018 |
| Priority date | Nov 20, 2017 |
| Publication date | Mar 28, 2023 |
| Grant date | Mar 28, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
To prevent solidified aluminum chloride from adhering to and accumulating on a pipe and also prevent stress-corrosion cracking in the pipe, a method for producing trichlorosilane includes a cooling step of cooling a discharge gas that is discharged from a fluidized-bed reactor and that contains the trichlorosilane, the cooling step involving causing a fluid to flow through a space ( 4 ) inside a side wall ( 3 ) of a pipe ( 10 ), the pipe being a pipe for discharging the discharge gas from the fluidized-bed reactor, in such a manner that the side wall ( 3 ) has a surface ( 1 a ) having a temperature of not lower than 110° C.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for producing trichlorosilane, the method comprising: a cooling step of cooling a discharge gas that is discharged from a fluidized-bed reactor configured to produce the trichlorosilane and that contains the trichlorosilane, in the cooling step, by causing a fluid to flow through a space inside a side wall of a pipe in such a manner that the side wall has a surface at a temperature of not lower than 110° C., the discharge gas being cooled so that in the pipe upstream of a lower end portion of the wall where the space is provided, the discharge gas flowing through the pipe is kept at a temperature of not lower than a sublimation temperature of aluminum chloride, the pipe being a pipe for discharging the discharge gas from the fluidized-bed reactor, the discharge gas flowing through the pipe being in contact with the surface. 2. The method according to claim 1 , wherein the cooling step involves causing the fluid to flow through the space in such a manner that the side wall has a lowermost portion having a surface temperature of lower than 125° C. 3. The method according to claim 1 , wherein the fluid is air having a temperature of not lower than 30° C. 4. The method according to claim 1 , wherein the fluid is high-temperature water having a temperature of not lower than 100° C.
Assignees
Inventors
Classifications
Plates; Jackets; Cylinders · CPC title
- C01B33/10763Primary
from silicon · CPC title
- B01J4/008Primary
Feed or outlet control devices · CPC title
according to "fluidised-bed" technique (B01J8/20 takes precedence) · CPC title
Aspects relating to the heat-exchange of the feed or outlet devices · CPC title
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- What does patent US11612869B2 cover?
- To prevent solidified aluminum chloride from adhering to and accumulating on a pipe and also prevent stress-corrosion cracking in the pipe, a method for producing trichlorosilane includes a cooling step of cooling a discharge gas that is discharged from a fluidized-bed reactor and that contains the trichlorosilane, the cooling step involving causing a fluid to flow through a space ( 4 ) inside …
- Who is the assignee on this patent?
- Tokuyama Corp
- What technology area does this patent fall under?
- Primary CPC classification C01B33/10763. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 28 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).