Doped anionic clays

Details Doped anionic clays Doped anionic clays

2006-04-04

2006-04-04

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S594160, C502S080000, C502S084000

Reexamination Certificate

active

07022304

ABSTRACT:
The present invention is directed to a process for the preparation of a doped anionic clay. In said process a trivalent metal source is reacted with a divalent metal source, at least one of the metal sources being either doped boehmite, doped MgO or doped brucite, to obtain a doped anionic clay. Suitable dopants are compounds containing elements selected from the group of alkaline earth metals (for instance Ca and Ba), alkaline metals, transition metals (for example Co, Mn, Fe, Ti, Zr, Cu, Ni, Zn, Mo, W, V, Sn), actinides, rare earth metals such as La, Ce, and Nd, noble metals such as Pt and Pd, silicon, gallium, boron, titanium, and phosphorus.

REFERENCES:
patent: 4946581 (1990-08-01), van Broekhoven
patent: 4952382 (1990-08-01), van Broekhoven
patent: 5507980 (1996-04-01), Kelkar et al.
patent: 5578286 (1996-11-01), Martin et al.
patent: 5728364 (1998-03-01), Martin et al.
patent: 5728365 (1998-03-01), Martin et al.
patent: 5728366 (1998-03-01), Martin et al.
patent: 5730951 (1998-03-01), Martin et al.
patent: 5776424 (1998-07-01), Martin et al.
patent: 6028023 (2000-02-01), Vierheilig
patent: 6261531 (2001-07-01), Inoue et al.
patent: 96/30440 (1996-10-01), None
patent: 99/41195 (1999-08-01), None
patent: 99/41196 (1999-08-01), None
patent: 99/41197 (1999-08-01), None
patent: 99/41198 (1999-08-01), None
patent: 00/44671 (2000-08-01), None
patent: 00/44672 (2000-08-01), None
Lopex-Salinas et al; New Gallium-Substituted Hydrotalcites: [Mg1−xGAx(OH)2] (CO3)x/2· mH2O. Journal of Porous Materials vol. 3 pp. 169-174 (1996), no month.
International Search Report for PCT/EP 02/ 01235; dated Jul. 26, 2002.
Catalysis Today.; Hydrotalcite-Type Anionic Clays: Preparation, Properties, and Applications. 11 (1991) pp. 173-301; Cavani et al., no month.
Anionic Clays: Trends in Pillaring Chemistry, Synthesis in Microporous Solids; 2 (1992) pp. 108-169; Roy et al, no month.
Helv. Chim. Acta, 25, (1942) pp. 106-137 Von Feitknecht, no month.
Helv. Chim. Acta, 25, (1942) pp. 555-569; Von Feitknecht, no month.
Journal of American Ceramic Society; Studies on 4CaO-Al2O3. 13H2O and the Related Natural Mineral Hydrocalumite. (1959) vol. 42 No. 3; pp. 121-126; Buttler et al., no month.
Chemistry Letters; Synthesis of New Hydrotalcite-Like Compounds and Their Physico-Chemical Properties. Miyata et al.; pp. 843-848 (1973), no month.
Clays and Clay Minerals; The Syntheses of Hydrotalcite-Like Compounds and Their Structures and Physico-Chemical Properties-I: The Systems; Miyata et al. vol. 23 (1975) pp. 369-375, no month.
Clays and Clay Minerals; Physico-Chemical Properties of Synthetic Hydrotalcites in Relation to Composition. Miyata et al.; vol. 28, No. 1, (1980) pp. 50-56, no month.
Clays and Clay Minerals; Syntheses of Discolored and Al-Rich Hydrotalcite-Like Compounds. Pausch et al.; vol. 34 No. 5; (1986) pp. 507-510, no month.
Materials Chemistry and Physics, Textural Properties of Hydrotalcite-Like Compounds . . . Ulibarri et al. vol. 14 (1986) pp. 569-579, no month.
European Search Report, for EP 01 20 0833, dated: Jul. 9, 2001.

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