Phosphorus/titania/zirconia catalyst for preparation of linear p

Details Phosphorus/titania/zirconia catalyst for preparation of linear p Phosphorus/titania/zirconia catalyst for preparation of linear p

1988-03-02

1990-04-03

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Phosphorus or compound containing same

B01J 2106, B01J 2718

Patent

active

049140728

ABSTRACT:
This invention relates to a method for the preparation of predominantly linear polyethylenepolyamines by reacting ethylenediamine with monoethanolamine in the presence of a phosphorus/titania/zirconia catalyst.
The catalysts that are used in accordance with the present invention are composed of phosphorus, titania and zirconia. They are prepared by mixing solutions of a tetravalent compound of titanium with a tetravalent compound of zirconium, treating the solution to simultaneously heterogeneously coprecipitate titania and zirconia to form a heterogeneous titania/zirconia support, recovering the coprecipitate, treating it with a compound of phosphorus to bond from about 0.5 to 6 wt. % of phosphorus to the coprecipitate and then stabilizing the resultant catalyst by calcining it at about 200.degree. to about 800.degree. C.

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