Phosphor, manufacturing method therefor, and light-emitting device using the phosphor
US-2015380614-A1 · Dec 31, 2015 · US
Preparation of complex fluoride and complex fluoride phosphor
US8974696B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8974696-B2 |
| Application number | US-201213439108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 4, 2012 |
| Priority date | Apr 8, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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Abstract
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A complex fluoride A 2 MF 6 wherein M is a tetravalent element Si, Ti, Zr, Hf, Ge or Sn, A is an alkali metal Li, Na, K, Rb or Cs is prepared by providing a first solution containing a fluoride of M, providing a second solution containing a compound of A and/or the compound of A in solid form, mixing the first solution with the second solution and/or the solid for reacting the fluoride of M with the compound of A, and recovering the resulting solid product via solid-liquid separation.
First claim
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The invention claimed is: 1. A method for preparing a complex fluoride having the formula (1): A 2 MF 6 (1) wherein M is at least one tetravalent element selected from the group consisting of Si, Ti, Hf, Ge, and Sn, A is at least one alkali metal selected from the group consisting of Li, Na, K, Rb, and Cs, said method comprising the steps of: providing a first solution containing a fluoride of tetravalent element M, hydrogenfluoride, and water, providing a second soluti…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8974696B2 cover?
- A complex fluoride A 2 MF 6 wherein M is a tetravalent element Si, Ti, Zr, Hf, Ge or Sn, A is an alkali metal Li, Na, K, Rb or Cs is prepared by providing a first solution containing a fluoride of M, providing a second solution containing a compound of A and/or the compound of A in solid form, mixing the first solution with the second solution and/or the solid for reacting the fluoride of M wi…
- Who is the assignee on this patent?
- Kaneyoshi Masami, Takai Yasushi, Shinetsu Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C09K11/617. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 10 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).