Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
Patent
1986-05-13
1989-05-02
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkaline earth metal
423181, 423308, 423659, 502208, 556 24, 556 26, C01B 1516, C01B 2526
Patent
active
048266639
ABSTRACT:
The invention relates to a zirconium phosphate in particles having sizes comprised within the range of from 1 to 100 .mu.m, a lamellar structure with interlayer distance, in the anhydrous state, comprised within the range of from 7.9 to 8.2 .ANG. and a surface area comprised within the range of from 9 to 20 m.sup.2 /g.
The method consists in altering the lamellar structure of a zirconium phosphate with layer structure of alpha type by intercalating into it an organic substance containing a proton-acceptor group and water and by a treatment with ultrasounds, in regenerating the hydrogen form of said zirconium phosphate by an acid and in washing the same with diluted acids and/or water.
REFERENCES:
patent: 3416884 (1968-12-01), Stynes et al.
patent: 4025608 (1977-05-01), Tawil et al.
patent: 4381289 (1983-04-01), Nowell et al.
Yu I. Sukharev, "Cationic Application of Ion-Exchange Zirconium Phosphates", Inorganic Materials, vol. 10, No. 3, pp. 427-430, Mar. 1974 (published Aug. 1974).
Alberti Giulio
Bartoli Francesco
Constantino Umberto
Di Gregorio Francesco
Valentini Claudio
Doll John
Eniricerche S.p.A.
Langel Wayne A.
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