Calcium gallate composition activated by manganese and method of preparation
    3.
    发明授权
    Calcium gallate composition activated by manganese and method of preparation 失效
    马来西亚激活的钙凝胶组合物及其制备方法

    公开(公告)号:US3632522A

    公开(公告)日:1972-01-04

    申请号:US3632522D

    申请日:1969-09-05

    CPC分类号: C09K11/62

    摘要: AN IMPROVED LUMINESCENT COMPOSITION OF MANGANESE ACTIVATED CALLCIUM GALLATE, WHEREIN UP TO ABOUT 25 ATOM PERCENT OF THE GALLIUM CAN BE SUBSTITUTED FOR BY ALUMINUM. THE COMPOSITION IS PREPARED BY AN IMPROVED METHOD OF PREPARATION WHICH COMPRISES FIRING THE RAW MIX CONSTITUENTS WITH AT LEAST ONE OF THE FLUXES OF THE GROUP CONSISTING OF CADMIUM BROMIDE, CADMIUM CHLORIDE, SODIUM CHLORIDE, AMMONIUM CHLORIDE, AND ALUMINUM SULFATE. THE PREPARED COMPOSITION EXHIBITS IMPRIVED LUMINESCENT INTENSITY, AND MAINTENANCE OF LUMINESCENT INTENSITY.

    Phosphor
    4.
    发明授权
    Phosphor 失效

    公开(公告)号:US3597365A

    公开(公告)日:1971-08-03

    申请号:US3597365D

    申请日:1968-02-28

    CPC分类号: C09K11/7721

    摘要: A PHOSPHOR IS PRODUCED BY HEATING TOGETHER TRIVALENT CERIUM OXIDE AND ALUMINUM OXIDE TO PRODUCE CEROUS ALUMINUM OXIDE HAVING THE B-ALUMINA CRYSTAL STRUCTURE. FOR THE PRODUCTION OF A CEROUS MANGANESE ALUMINUM OXIDE PHOSPHOR, DIVALENT MANGANESE OXIDE MAY BE INCLUDED IN THE INITIAL MIXTURE OR MAY BE HEATED IN ADMIXTURE WITH THE CEROUS ALUMINUM OXIDE. IN ALL CASES ANY ONE OR MORE OF THE OXIDES MAY BE REPLACED AT LEAST PARTIALLY BY A COMPOUND WHICH YIELDS THE OXIDE UNDER THE HEATING CONDITIONS.