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US-2024383827-A1 · Nov 21, 2024 · US
Method for producing tetrafluoromethane
US11034636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11034636-B2 |
| Application number | US-201816962549-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 25, 2018 |
| Priority date | Jan 17, 2018 |
| Publication date | Jun 15, 2021 |
| Grant date | Jun 15, 2021 |
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Abstract
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A method for producing tetrafluoromethane as follows is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid containing a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (wherein p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and having no carbon-carbon unsaturated bond, fluorine gas is introduced, and concurrently a reaction inducer is introduced in a gas state, giving tetrafluoromethane. The reaction inducer is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas and is at least one reaction inducer selected from a hydrocarbon gaseous at normal temperature and pressure and hydrogen gas.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing tetrafluoromethane, the method comprising: introducing fluorine gas to a raw material liquid containing a fluorinated hydrocarbon represented by chemical formula C p H q Cl r ,F s , (in the chemical formula, p is an integer of 3 or more and 18 or less, q is an integer of 0 or more and 3 or less, r is an integer of 0 or more and 9 or less, and s is an integer of 5 or more and 30 or less) and having no carbon-carbon unsaturated bond and concurrently introducing a reaction inducer in a gas state, wherein the reaction inducer is reacted with the fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas and is at least one reaction inducer selected from the group consisting of a hydrocarbon gaseous at normal temperature and pressure and hydrogen gas. 2. The method for producing tetrafluoromethane according to claim 1 , wherein the reaction inducer is hydrogen gas. 3. The method for producing tetrafluoromethane according to claim 1 , wherein the fluorinated hydrocarbon is at least one fluorine-containing substance selected from the group consisting of a perfluorocarbon within said chemical formula, a fluorohydrocarbon within said chemical formula, a chlorofluorocarbon within said chemical formula, a chlorofluorohydrocarbon within said chemical formula, and a chlorotrifluoroethylene polymer within said chemical formula. 4. The method for producing tetrafluoromethane according to claim 2 , wherein the fluorinated hydrocarbon is at least one fluorine-containing substance selected from the group consisting of a perfluorocarbon within said chemical formula, a fluorohydrocarbon within said chemical formula, a chlorofluorocarbon within said chemical formula, a chlorofluorohydrocarbon within said chemical formula, and a chlorotrifluoroethylene polymer within said chemical formula.
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containing fluorine · CPC title
- C07C17/361Primary
by reactions involving a decrease in the number of carbon atoms · CPC title
by depolymerisation · CPC title
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- What does patent US11034636B2 cover?
- A method for producing tetrafluoromethane as follows is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid containing a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (wherein p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and …
- Who is the assignee on this patent?
- Showa Denko Kk
- What technology area does this patent fall under?
- Primary CPC classification C07C17/361. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 15 2021 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).