Cathode ray-luminescent phosphor and method for the preparation

Details Cathode ray-luminescent phosphor and method for the preparation Cathode ray-luminescent phosphor and method for the preparation

1999-03-12

2000-12-05

Koslow, C. Melissa

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

502 74, 502 79, 502 85, C09K 1108

Patent

active

061562335

ABSTRACT:
Disclosed is a novel cathode ray-luminescent phosphor which is a composite body consisting of a dealuminized zeolite carrying a specified amount of a metal such as tin, cobalt and nickel or an oxide thereof within the pores of the dealuminized zeolite structure. The cathode ray-luminescent phosphor is prepared by a method comprising the steps of: (a) heating an ammonium-form zeolite in the presence of steam to effect dealuminization of the zeolite; (b) impregnating the dealuminized zeolite with an aqueous solution of a metal salt in an amount of the metal salt in the range from 10 to 60 parts by weight calculated as metal per 100 parts by weight of the dealuminized zeolite; (c) drying the dealuminized zeolite impregnated with the aqueous metal salt solution; and (d) calcining the dried zeolite in a reducing or oxidizing atmosphere at a temperature in the range from 450 to 600.degree. C. for 1 to 5 hours to form a composite of the dealuminized zeolite and the metal or an oxide of the metal, respectively.

REFERENCES:
patent: 3546096 (1970-12-01), Kittrell
patent: 3591488 (1971-07-01), Eberly, Jr. et al.
patent: 3617527 (1971-11-01), Hilfman
patent: 3677972 (1972-07-01), Gutberlet et al.
patent: 4820402 (1989-04-01), Partridge et al.
patent: 4983274 (1991-01-01), Chen et al.
patent: 5401704 (1995-03-01), Absil et al.

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