Method for storing tetrafluoropropene and container for storing tetrafluoropropene
US-2018016213-A1 · Jan 18, 2018 · US
Storage method for hydrochlorofluoroolefin, and storage container for hydrochlorofluoroolefin
US11525543B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11525543-B2 |
| Application number | US-202016835565-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 31, 2020 |
| Priority date | Oct 20, 2017 |
| Publication date | Dec 13, 2022 |
| Grant date | Dec 13, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
To provide a method for safely and stably storing a hydrochlorofluoroolefin filled in a container for storage, transportation, etc. A method for storing a hydrochlorofluoroolefin in a sealed storage container, wherein the hydrochlorofluoroolefin is stored in such a state that a gas phase and a liquid phase coexist in the storage container, and the concentration of air in the gas phase in the storage container at a temperature of 25° C. is kept to be at most 3.0 vol %, and a method for storing a hydrochlorofluoroolefin in a sealed storage container, wherein the hydrochlorofluoroolefin is stored in such a state that a gas phase and a liquid phase coexist in the storage container, and the concentration of oxygen in the gas phase in the storage container at a temperature of 25° C. is kept to be at most 0.6 vol %.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for storing a hydrochlorofluoroolefin in a sealed storage container, wherein the hydrochlorofluoroolefin is stored in such a state that a gas phase and a liquid phase coexist in the storage container, and the concentration of air in the gas phase in the storage container at a temperature of 25° C. is kept to be at most 3.0 vol %. 2. The method for storing a hydrochlorofluoroolefin according to claim 1 , wherein the concentration of air is kept to be at least 1 vol ppm and at most 3.0 vol %. 3. The method for storing a hydrochlorofluoroolefin according to claim 1 , wherein the hydrochlorofluoroolefin is a C 2-5 hydrochlorofluoroolefin. 4. The method for storing a hydrochlorofluoroolefin according to claim 1 , wherein the hydrochlorofluoroolefin contains 1-chloro-2,3,3,3-tetrafluoropropene. 5. The method for storing a hydrochlorofluoroolefin according to claim 1 , wherein air in an unfilled storage container is removed, then, a liquid-state hydrochlorofluoroolefin is filled and sealed, and the hydrochlorofluoroolefin is stored in the sealed storage container. 6. A storage container for a hydrochlorofluoroolefin, which is a sealed storage container in which the hydrochlorofluoroolefin is filled in such a state that a gas phase and a liquid phase coexist, and in which the concentration of air in the gas phase at a temperature of 25° C. is at most 3.0 vol %. 7. The storage container for a hydrochlorofluoroolefin according to claim 6 , wherein the concentration of air is at least 1 vol ppm and at most 3.0 vol %. 8. The storage container for a hydrochlorofluoroolefin according to claim 6 , wherein the hydrochlorofluoroolefin is a C 2-5 hydrochlorofluoroolefin. 9. The storage container for a hydrochlorofluoroolefin according to claim 6 , wherein the hydrochlorofluoroolefin contains 1-chloro-2,3,3,3-tetrafluoropropene. 10. A method for storing a hydrochlorofluoroolefin in a sealed storage container, wherein the hydrochlorofluoroolefin is stored in such a state that a gas phase and a liquid phase coexist in the storage container, and the concentration of oxygen in the gas phase in the storage container at a temperature of 25° C. is kept to be at most 0.6 vol %. 11. The method for storing a hydrochlorofluoroolefin according to claim 10 , wherein the concentration of oxygen is kept to be at least 0.2 vol ppm and at most 0.6 vol %. 12. The method for storing a hydrochlorofluoroolefin according to claim 10 , wherein the hydrochlorofluoroolefin is a C 2-5 hydrochlorofluoroolefin. 13. The method for storing a hydrochlorofluoroolefin according to claim 10 , wherein the hydrochlorofluoroolefin contains 1-chloro-2,3,3,3-tetrafluoropropene. 14. The method for storing a hydrochlorofluoroolefin according to claim 10 , wherein air in an unfilled storage container is removed, then, a liquid-state hydrochlorofluoroolefin is filled and sealed, and the hydrochlorofluoroolefin is stored in the sealed storage container. 15. A storage container for a hydrochlorofluoroolefin, which is a sealed storage container in which the hydrochlorofluoroolefin is filled in such a state that a gas phase and a liquid phase coexist, and in which the concentration of oxygen in the gas phase at a temperature of 25° C. is at most 0.6 vol %. 16. The storage container for a hydrochlorofluoroolefin according to claim 15 , wherein the concentration of oxygen is at least 0.2 vol ppm and at most 0.6 vol %. 17. The storage container for a hydrochlorofluoroolefin according to claim 15 , wherein the hydrochlorofluoroolefin is a C 2-5 hydrochlorofluoroolefin. 18. The storage container for a hydrochlorofluoroolefin according to claim 15 , wherein the hydrochlorofluoroolefin contains 1-chloro-2,3,3,3-tetrafluoropropene.
Assignees
Inventors
Classifications
Tetrafluoroethene · CPC title
- C07C17/38Primary
Separation; Purification; Stabilisation; Use of additives · CPC title
for filling with liquefied gases · CPC title
for fluid transport or storage · CPC title
Refrigerants · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11525543B2 cover?
- To provide a method for safely and stably storing a hydrochlorofluoroolefin filled in a container for storage, transportation, etc. A method for storing a hydrochlorofluoroolefin in a sealed storage container, wherein the hydrochlorofluoroolefin is stored in such a state that a gas phase and a liquid phase coexist in the storage container, and the concentration of air in the gas phase in the st…
- Who is the assignee on this patent?
- Agc Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C17/38. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 13 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).