发明公开
EP3080230A1 PROCESSES FOR PREPARING COLOR STABLE MANGANESE-DOPED COMPLEX FLUORIDE PHOSPHORS
有权
VERFAHREN ZUR HERSTELLUNG VON FARBSTABILEN MANGANDOTIERTEN KOMPLEXEN FLUORIDLEUCHTSTOFFEN
- 专利标题： PROCESSES FOR PREPARING COLOR STABLE MANGANESE-DOPED COMPLEX FLUORIDE PHOSPHORS
- 专利标题（中）： VERFAHREN ZUR HERSTELLUNG VON FARBSTABILEN MANGANDOTIERTEN KOMPLEXEN FLUORIDLEUCHTSTOFFEN
-
申请号： EP14821427.3申请日： 2014-12-12
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公开(公告)号： EP3080230A1公开(公告)日： 2016-10-19
- 发明人: MURPHY, James Edward , DU, Fangming , BEERS, William Winder , LYONS, Robert Joseph
- 申请人： General Electric Company
- 申请人地址： 1 River Road Schenectady, NY 12345 US
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： 1 River Road Schenectady, NY 12345 US
- 代理机构： Foster, Christopher Michael
- 优先权： US201361915927P 20131213
- 国际公布： WO2015089345 20150618
- 主分类号： C09K11/61
- IPC分类号： C09K11/61
摘要：
A process for preparing a color stable Mn
4+ doped complex fluoride phosphor of formula (I) includes: A
x (M
(1-m) , Mn
m ) F
y ; contacting a first aqueous HF solution comprising (1-m) parts of a compound of formula H
x MF
y , and a second aqueous HF solution comprising m*n parts of a compound of formula A
x [MnF
y ], with a third aqueous HF solution comprising (1 -n) parts of the compound of formula A
x [MnF
y ] and a compound of formula A
a X, to yield a precipitate comprising the color stable Mn
4+ doped complex fluoride phosphor; wherein A is Li, Na, K, Rb, Cs, NR
4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; X is an anion; a is the absolute value of the charge of the X anion; x is the absolute value of the charge of the [MF
y ] ion; y is 5, 6 or 7; 0
4+ doped complex fluoride phosphor of formula (I) includes: A
x (M
(1-m) , Mn
m ) F
y ; contacting a first aqueous HF solution comprising (1-m) parts of a compound of formula H
x MF
y , and a second aqueous HF solution comprising m*n parts of a compound of formula A
x [MnF
y ], with a third aqueous HF solution comprising (1 -n) parts of the compound of formula A
x [MnF
y ] and a compound of formula A
a X, to yield a precipitate comprising the color stable Mn
4+ doped complex fluoride phosphor; wherein A is Li, Na, K, Rb, Cs, NR
4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; X is an anion; a is the absolute value of the charge of the X anion; x is the absolute value of the charge of the [MF
y ] ion; y is 5, 6 or 7; 0
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