PROCESSES FOR PREPARING COLOR STABLE MANGANESE-DOPED COMPLEX FLUORIDE PHOSPHORS
    1.
    发明公开
    PROCESSES FOR PREPARING COLOR STABLE MANGANESE-DOPED COMPLEX FLUORIDE PHOSPHORS 有权
    VERFAHREN ZUR HERSTELLUNG VON FARBSTABILEN MANGANDOTIERTEN KOMPLEXEN FLUORIDLEUCHTSTOFFEN

    公开(公告)号:EP3080230A1

    公开(公告)日:2016-10-19

    申请号:EP14821427.3

    申请日:2014-12-12

    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

    摘要翻译: 制备式I的颜色稳定的Mn4 +掺杂复合氟化物荧光体的方法包括与包含(1-m)份式H x M F y的化合物的第一HF水溶液接触的M 1(M(1-m),M nm) 和包含m * n个分子式Ax [MnFy]化合物的第二HF水溶液与包含(1-n)份式Ax [MnF y]化合物和式AaX化合物的第三HF水溶液 以产生包含颜色稳定的Mn4 +掺杂的复合氟化物荧光体的沉淀物; 其中A为Li,Na,K,Rb,Cs,NR4或其组合; M是Si,Ge,Sn,Ti,Zr,Al,Ga,In,Sc,Hf,Y,La,Nb,Ta,Bi,Gd或它们的组合; R为H,低级烷基或其组合; X是阴离子; a是X阴离子电荷的绝对值; x是[MFy]离子的电荷的绝对值; y为5,6或7; 0