Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions
US-2024352296-A1 · Oct 24, 2024 · US
Method for storing tetrafluoropropene and container for storing tetrafluoropropene
US10280129B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10280129-B2 |
| Application number | US-201715718466-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2017 |
| Priority date | Apr 27, 2012 |
| Publication date | May 7, 2019 |
| Grant date | May 7, 2019 |
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- Title
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Abstract
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A method for storing tetrafluoropropene in a gaseous-liquid state composed of a gas phase and a liquid phase in a closed container, wherein the oxygen concentration (content) in the above gas phase is adjusted to at least 3 vol ppm and less than 3,000 vol ppm at a temperature of 25° C.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for storing tetrafluoropropene in a gaseous-liquid state composed of a gas phase and a liquid phase in a closed container, the method comprising sealing oxygen in the closed container, and subsequently filling the tetrafluoropropene, wherein the oxygen concentration in the gas phase is at least 3 vol ppm and less than 3,000 vol ppm at 25° C. 2. The method according to claim 1 , wherein the oxygen concentration in the gas phase is at least 5 vol ppm and less than 1,000 vol ppm at 25° C. 3. The method according to claim 1 , wherein the tetrafluoropropene is 2,3,3,3-tetrafluoropropene. 4. The method according to claim 1 , wherein the oxygen concentration in the gas phase is at least 6 vol ppm and at most 500 vol ppm at 25° C. 5. A closed container, containing tetrafluoropropene in a gaseous-liquid state comprising a gas phase and a liquid phase, wherein an oxygen concentration in the gas phase is at least 3 vol ppm and less than 3,000 vol ppm at 25° C., and a total content of non-condensable gas in the closed container is 15,000 vol ppm at 25° C. 6. The closed container according to claim 5 , wherein the oxygen concentration in the gas phase is at least 5 vol ppm and less than 1,000 vol ppm at 25° C. 7. The closed container according to claim 5 , wherein the tetrafluoropropene is 2,3,3,3-tetrafluoropropene. 8. The closed container according to claim 5 , wherein the oxygen concentration in the gas phase is at least 6 vol ppm and at most 500 vol ppm at 25° C.
Assignees
Inventors
Classifications
Aluminium · CPC title
Mixtures · CPC title
Tetrafluoroethene · CPC title
- C07C21/18Primary
containing fluorine · CPC title
Stainless steels · CPC title
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- What does patent US10280129B2 cover?
- A method for storing tetrafluoropropene in a gaseous-liquid state composed of a gas phase and a liquid phase in a closed container, wherein the oxygen concentration (content) in the above gas phase is adjusted to at least 3 vol ppm and less than 3,000 vol ppm at a temperature of 25° C.
- Who is the assignee on this patent?
- Agc Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C21/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 07 2019 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).