Compositions – Absorptive – or bindive – and chemically yieldive
Patent
1984-07-30
1986-09-02
Terapane, John F.
Compositions
Absorptive, or bindive, and chemically yieldive
502208, 502209, 423308, 423309, C09K 300, C01B 2537
Patent
active
046094849
ABSTRACT:
Mixed phosphorous or arsenic salts of tetravalent metals are provided having the general formula M(HAO.sub.4).sub.2-x (HAO.sub.3).sub.x.nH.sub.2 O, where M is Zr, Ti or Hf, A is phosphorus or arsenic, x is between 0.05 and 1.95, and n is 0 to 6. The salts are highly stable and have wide potential application in the fields of ion exchange, catalysis, intercalation of molecules, solid electrolytes, and chromatography. The salts are prepared by reacting a halide, oxyhalide, nitrate, sulphate, phosphate or oxide of the tetravalent metal, preferably in an aqueous medium, with at least two oxygenated acids of phosphorus and/or arsenic.
REFERENCES:
patent: 3416884 (1968-12-01), Stynes et al.
patent: 3558273 (1971-01-01), Beck
patent: 3907835 (1975-09-01), Kobylinski et al.
patent: 3946079 (1976-03-01), Mizutani et al.
patent: 4396535 (1983-08-01), Bremer et al.
Alberti Giulio
Bartoli Francesco
Costantino Umberto
Di Gregorio Francesco
ENI - Ente Nazionale Idrocarburi
Terapane John F.
Thexton Matthew A.
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