Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Patent
1997-07-31
1999-04-06
Wood, Elizabeth
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
502200, B01J 2726, B01J 2724
Patent
active
058918183
ABSTRACT:
In the preparation of double metal cyanide complex catalysts, higher catalyst yield and higher catalyst activity may be obtained by recirculating a stream of catalyst dispersion to the reactor head space in the form of a spray, and by directing this or another circulation loop stream through a high shear in-line mixer. The process economics and catalyst purity may be increased by increasing the solids content of the wet centrifuge/filtration cake to higher solids by pressing the wet cake, preferably by diaphragm squeezing. The number of washes may be decreased thereby without affecting catalyst quality.
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Arco Chemical Technology L.P.
Conger William G.
Schuchardt Jonathan L.
Wood Elizabeth
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