CATALYST AND PROCESS FOR THE PREPARATION OF AROMATIC CARBONATES

Title:

CATALYST AND PROCESS FOR THE PREPARATION OF AROMATIC CARBONATES

Document Type and Number:

WIPO Patent Application WO/1999/006142

Kind Code:

A1

Abstract:

Aromatic carbonates can be prepared economically and efficiently by reacting an aromatic hydroxyl compound with carbon monoxide and oxygen in the presence of a catalyst which comprises a perovskitic composite oxide represented by the following general formula (1): M¿(1-x)?M'¿x?M''O¿y? (wherein M is a group IIIB metal; x is a number of 0 to 1; M' is a metal having an ionic radius of 0.90 Å or above; M'' is Mn, Cr, Co, Fe, Ni or Cu; and y is a number of 2.5 to 3.5) or formula (1'): L¿(1-x)?L'¿x?L''O¿y? (wherein L is a group IIA or IVA metal taking a divalent state in the form of an oxide; x is a number of 0 to 1; L' is a metal having an ionic radius of 0.90 Å or above; L'' is a group IVA, IVB or IIIB metal taking a tetravalent state in the form of an oxide; and y is a number of 2.5 to 3.5) and a palladium compound supported on the composite oxide and in which palladium accounts for 0.01 to 15 % by weight of the catalyst.

Inventors:

YOSHISATO EISHIN (JP)

Application Number:

PCT/JP1998/003473

Publication Date:

February 11, 1999

Filing Date:

August 04, 1998

Export Citation:

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Assignee:

TEIJIN LTD (JP)
YOSHISATO EISHIN (JP)

International Classes:

B01J23/00; B01J23/56; B01J23/656; B01J23/89; C07C68/00; (IPC1-7): B01J23/44; B01J23/64; B01J23/89; C07C69/96; C07C68/00

Foreign References:

JPH0986928A	1997-03-31
JPS62269747A	1987-11-24
JPH05220395A	1993-08-31
JPH08281108A	1996-10-29

Other References: