Compositions – Inorganic luminescent compositions – Tungsten containing
Patent
1977-05-05
1978-09-19
Hoffman, James R.
Compositions
Inorganic luminescent compositions
Tungsten containing
2523016R, 106301, 423 58, 423593, 427157, C09K 1138, C09K 1110
Patent
active
041153120
ABSTRACT:
In a process for producing x-ray fluorescent luminescent cadmium tungstate material by precipitation of cadmium tungstate from an aqueous solution of an alkali metal tungstate by the addition of an aqueous solution of a cadmium salt and separation, washing, drying and calcining of the resulting precipitate, an improvement is provided wherein
REFERENCES:
patent: 2361467 (1944-10-01), Fernberger
patent: 2962349 (1960-11-01), Anglin
patent: 3023313 (1962-02-01), DE LA Mater et al.
patent: 3494779 (1970-02-01), Pappalardo et al.
patent: 3839069 (1974-10-01), Linturn
Eckle Manfred
Engel Gerhard
Hoffman James R.
Merck Patent Gesellschaft mit beschrankter Haftung
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