Method for preparing copper-aluminum-gold-activated zinc-sulfide

Details Method for preparing copper-aluminum-gold-activated zinc-sulfide Method for preparing copper-aluminum-gold-activated zinc-sulfide

1978-12-06

1982-02-23

Cooper, Jack

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

C09K 1150

Patent

active

043168167

ABSTRACT:
A method for preparing a phosphor including heating at its reaction temperature in a covered container a mixture of zinc sulfide, an activator quantity of copper as a compound thereof, an activator quantity of aluminum as a compound thereof, an activator quantity of gold as a compound thereof, a minor proportion of elemental selenium, a minor proportion of elemental sulfur and a minor proportion of carbon. The reaction mixture is heated in the container and the product is then cooled. After cooling, whatever carbon remains is removed as by screening.

REFERENCES:
patent: 2623858 (1952-12-01), Kroger
patent: 3595804 (1971-07-01), Martin
patent: 3922233 (1975-11-01), Torii et al.
patent: 4140940 (1979-02-01), Vehara et al.
patent: 4151442 (1979-04-01), Koga et al.
Blazhnova, "A Kad Nauk Eston. S.S.R., Tartu", 1957, pp. 270-288.

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