Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2005-02-15
2005-02-15
Wood, Elizabeth D. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C423S365000, C423S367000
Reexamination Certificate
active
06855658
ABSTRACT:
The present invention provides a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II),in-line-formulae description="In-line Formulae" end="lead"?M1x[M2(CN)6]yOH.L (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?M1x[M2(CN)6]y.zM1(OH)q.L (II)in-line-formulae description="In-line Formulae" end="tail"?wherein M1represents a metal selected from Zn+2, Fe+2, Ni+2, Mn+2, Co+2, Sn+2, Pb+2, Fe+3, Mo+4, Mo+6, Al+3, V+4, V+5, Sr+2, W+4, W+6, Cu+2and Cr+3, M+2represents a metal selected from Fe+2, Fe+3, Co+2, Co+3, Cr+2, Cr+3, Mn+2, Mn+3, Ir+3, Ni+2, Rh+3, Ru+2, V+4and V+5, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. Further provided are processes for the production of the inventive DMC catalysts. The crystalline, hydroxide containing DMC catalysts of the present invention may find use in the preparation of polyols, such as polyether polyols.
REFERENCES:
patent: 3404109 (1968-10-01), Milgrom
patent: 3829505 (1974-08-01), Herold
patent: 3941849 (1976-03-01), Herold
patent: 4477589 (1984-10-01), van der Hulst et al.
patent: 5158922 (1992-10-01), Hinney et al.
patent: 5470813 (1995-11-01), Le-Khac
patent: 5627122 (1997-05-01), Le-Khac et al.
patent: 5783513 (1998-07-01), Combs et al.
patent: 5952261 (1999-09-01), Combs
patent: 6303533 (2001-10-01), Grosch et al.
patent: 6303833 (2001-10-01), Grosch et al.
patent: 6362126 (2002-03-01), Grosch et al.
patent: 20020006864 (2002-01-01), Grosch et al.
patent: 20020032121 (2002-03-01), Grosch et al.
patent: 20030013604 (2003-01-01), Grosch et al.
Inorganic Chemistry, 14, (8), (month unavailable) 1975, Kenneth M. Harmon and Irene Gennick, “Hydrogen Bonding. V. Possible Existence of Strongly Hydrogen-Bonded Water-Fluoride and Water-Hydroxide Complex Anions, (F H2O)22−and HO H2O)22−, in Tetramethylammonium Ion Salt Hydrates1.2”.
Journal of Catalysls 105, (month unavailable) 1987, pp. 163-174, J. Kuyper and F. Boxhoorn, “Hexacyanometallate Salts Used as Alkene-Oxide Polymerization Catalysts and Molecular Sieves”.
Bayer Antwerp N.V.
Gil Joseph C.
Mrozinski, Jr. John E.
Wood Elizabeth D.
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