Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Primarily organic continuous liquid phase
Reexamination Certificate
2006-01-10
2006-01-10
Raymond, Richard L. (Department: 1624)
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Primarily organic continuous liquid phase
C516S031000, C560S233000, C562S521000, C562S522000, C568S428000
Reexamination Certificate
active
06984668
ABSTRACT:
A liquid-phase chemical reaction medium comprises one or more reactants, optionally in the presence of a reaction product(s) and one or more solvents, diluents or other form of liquid carrier, a catalyst system comprising at least a metal or metal compound and optionally further compounds such as ligands or complexing agents; characterized in that the reaction medium further comprises a polymeric dispersant dissolved in said liquid carrier, said polymeric dispersant being capable of stabilizing a colloidal suspension of particles of said metal or metal compound within the liquid carrier. The presence of the polymeric dispersant enables metal formed by catalyst deactivation to be more easily recovered and recycled. Preferably, the polymeric dispersant has sufficiently acidic or basic functionality to stabilize the colloidal suspension of said metal or metal compound.
REFERENCES:
patent: 2542767 (1951-02-01), Gresham et al.
patent: 4252677 (1981-02-01), Smith
patent: 4447639 (1984-05-01), Sofranko et al.
patent: 4743358 (1988-05-01), Kugler et al.
patent: 4960926 (1990-10-01), Drent
patent: 5166411 (1992-11-01), Drent
patent: 6723882 (2004-04-01), Slany et al.
patent: 2003/0191339 (2003-10-01), Schaefer et al.
patent: 197 54 304 (1990-06-01), None
patent: 44 43 705 (1996-06-01), None
patent: 197 45 904 (1999-04-01), None
patent: 0 715 889 (1996-06-01), None
patent: 0 879 642 (1998-11-01), None
patent: WO 96/19434 (1996-06-01), None
patent: WO 98/57918 (1998-12-01), None
Hidefumi Hirai, “Polymer Effect on Fine Metal Particles and Reactive Metal Complexes” Makromol. Chem. Suppl., vol. 14, p. 55-69 (1985).
Wang et al., “Carbonylation of Methanol Catalyzed by Polymer-Protected Rhodium Colloid” J. Mol. Catal. A: Chemical vol. 118, pp. 145-151 (1997).
The Merck Index, 13thed., MERCK & CO., Whitehouse Station, NJ, pp. 778 and 1374 (2001).
Wang et al, “Carbonylation of Methanol Catalyzed by Polymer-protected Rhodium Colloid” J. Molecular Catalysis A: Chemical, vol. 118(2), pp. 145-151 (1997). (CAPLUS abstract).
Harai, H. “Polymer Effect on Fine Metal Particles and Reactive Metal Complexes” Makromolekulare Chemie, Supp. vol. 14, pp. 55-69 (1985). (CAPLUS abstract).
Wei-Yong Yu et al., “Preparation of Polymer-protected Pt/Co Bimetallic Colloid and its Catalytic Properties in Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol”,Polymers for Advanced Technologies, Aug. 1, 1996, pp. 719-722, vol. 7, No. 8.
Franck Bertoux et al., “Palladium catalyzed hydroxycarbonylation of olefins in biphasic system: Beneficial effect of alkali metal salt and protective-colloid agents on the stability of the catalytic system”, Journal of Molecular Catalysis A: Chemical 143 (1999), pp. 23-30.
Eastham Graham Ronald
Hadden Raymond Anthony
Johnson David William
Lucite International UK Limited
Raymond Richard L.
Sartori Michael A.
Schneller Marina V.
Tucker Zachary C.
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