NEW ZINC/METAL HEXACYANOCOBALTATE COMPLEX COMPOSITIONS, A PROCESS FOR THEIR PREPARATION AND THEIR USE IN A PROCESS FOR THE PRODUCTION OF POLYETHER POLYOLS

摘要

The invention relates to novel zinc/metal hexacyanocobaltate complex compoundscorresponding to the formula: Zn[err]M[err][CO(CN)[err]][err] w(H[err]O) x(L) y[Zn(X)[err]] z[M(Y)[err])].These complex compounds are suitable catalysts. This invention also relates to aprocess for the production of the compounds, and to the use of the compounds ina process for the production of polyether polyols.These novel zinc/metal hexacyanocobaltate complex compounds when used ascatalysts in a process for the production of polyether polyols substantially reducethe induction period of the polyaddition reaction of alkylene oxides to startercompounds containing hydrogen atoms. Furthermore, the resultant polyether poly-ols have a significantly narrower molecular weight distribution.