fulltext.study @t Gmail

Metal dispersion and distribution in Pd-based PTA catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
52745 46885 2007 4 PDF Available
Title
Metal dispersion and distribution in Pd-based PTA catalysts
Abstract

The influence of the pH of the impregnating H2PdCl4 solution was studied in the preparation of Pd catalysts on granular active carbon. All catalysts were tested in the purification of crude terephthalic acid (4-CBA hydrogenation), in conditions strictly similar to those of industrial operation. The pH of the impregnating H2PdCl4 solution was found to strongly influence both Pd surface area and activity (best results with pH 1.5–2.0), while has a relatively small influence on Pd distribution. A linear relationship between catalytic activity for 4-CBA hydrogenation and Pd surface area was confirmed.

Keywords
Palladium catalyst; Hydrogenation; Terephthalic acid purification; Metal dispersion; Metal distribution
First Page Preview
Metal dispersion and distribution in Pd-based PTA catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 6, June 2007, Pages 876–879
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis