Processes for producing trifluoroiodomethane using metal trifluoroacetates
US-10870614-B2 · Dec 22, 2020 · US
Fluoroalkyl iodide and its production process
US8957264B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8957264-B2 |
| Application number | US-201314103072-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 11, 2013 |
| Priority date | Apr 20, 2005 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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A process for producing a fluoroalkyl iodide as a telomer R f (CF 2 CF 2 ) n I (wherein R f is a C 1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula R f I (wherein R f is as defined above) as a telogen and tetrafluoroethylene (CF 2 CF 2 ) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.
First claim
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What is claimed is: 1. A process for producing a fluoroalkyl iodide telomer R f (CF 2 CF 2 ) n I , wherein R f is a C 1-10 fluoroalkyl group, and n is an integer of from 1 to 6, comprising: supplying a homogeneous liquid mixture of a fluoroalkyl iodide telogen represented by formula R f I and a tetrafluoroethylene (CF 2 CF 2 ) taxogen from a lower portion of a tubular reactor; moving the mixture from the lower portion towards an upper portion of the tubular reactor in the pre…
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- C07C19/16Primary
Chemistry & Metallurgy · mapped topic
- C07C17/278Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8957264B2 cover?
- A process for producing a fluoroalkyl iodide as a telomer R f (CF 2 CF 2 ) n I (wherein R f is a C 1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula R f I (wherein R f is as defined above) as a telogen and tetrafluoroethylene (CF 2 CF 2 ) as a taxogen, which comprises a liquid phase telomerization step of supply…
- Who is the assignee on this patent?
- Asahi Glass Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07C19/16. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 17 2015 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).