Process for preparing palladium on carbon catalysts for purifica

Details Process for preparing palladium on carbon catalysts for purifica Process for preparing palladium on carbon catalysts for purifica

1983-06-23

1984-10-09

Konopka, P. E.

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

Catalyst or precursor therefor

Inorganic carbon containing

562487, B01J 2344, C07C 5142

Patent

active

044762429

ABSTRACT:
A catalyst, a process for preparing said catalyst, and a process for producing purified terephthalic acid, wherein 4-carboxybenzaldehyde is reduced to very low levels, wherein said catalyst is prepared by contacting a solution of a suitable palladium salt in an organic solvent with a suitable activated carbon support, wherein said palladium salt is reduced to palladium metal crystallites by said activated carbon support. Purified terephthalic acid is prepared by hydrogenating crude terephthalic acid in the presence of said catalyst.

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patent: 4415479 (1983-11-01), Puskas et al.
patent: 4421676 (1983-12-01), Puskas et al.

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