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1. (WO2007099942) PHOSPHOR RAW MATERIAL AND METHOD FOR PRODUCING ALLOY FOR PHOSPHOR RAW MATERIAL

Pub. No.:    WO/2007/099942    International Application No.:    PCT/JP2007/053620
Publication Date: Sat Sep 08 01:59:59 CEST 2007 International Filing Date: Wed Feb 28 00:59:59 CET 2007
IPC: C09K 11/64
C09K 11/08
C22C 28/00
Applicants: Mitsubishi Chemical Corporation
三菱化学株式会社
WATANABE, Hiromu
渡邉展
KIJIMA, Naoto
木島直人
WADA, Hiroshi
和田博
Inventors: WATANABE, Hiromu
渡邉展
KIJIMA, Naoto
木島直人
WADA, Hiroshi
和田博
Title: PHOSPHOR RAW MATERIAL AND METHOD FOR PRODUCING ALLOY FOR PHOSPHOR RAW MATERIAL
Abstract:
Disclosed is a phosphor raw material which enables to obtain a phosphor having high characteristics and wherein only a few impurities are contained. Specifically disclosed is a phosphor raw material characterized by being an alloy which contains at least Si and one or more metal elements other than Si. Also disclosed is a method for producing an alloy for a phosphor raw material which contains a tetravalent metal element M4 including at least Si, and one ore more alkaline earth metal elements as divalent metal elements M2. This method for producing an alloy for a phosphor raw material is characterized in that the alkaline earth metals are melted after melting Si and/or an alloy containing Si.