Patent Number: 8,815,191

Title: Process for preparing catalysts involving the regeneration of metal carbonate precipitants

Abstract: A process for manufacturing a catalyst composition includes the steps of (i) combining one or more soluble metal compounds with a solution of an alkaline metal carbonate precipitant to form a precipitate of insoluble metal carbonates, (ii) processing the insoluble metal carbonates into a catalyst or catalyst precursor with the evolution of carbon dioxide, (iii) recovering at least a portion of the evolved carbon dioxide, and (iv) reacting the recovered carbon dioxide with a suitable alkaline metal compound in an absorber column to generate an alkaline metal carbonate, wherein at least a portion of the generated alkaline metal carbonate is used as a precipitant in step (i).

Inventors: Campbell; Graeme Douglas (Clitheroe, GB), Hunter; James Beaumond (Holywell, GB)

Assignee: Johnson Matthey Public Limited Company

International Classification: B01D 53/62 (20060101); B01D 53/86 (20060101); B01D 53/96 (20060101); B01J 37/03 (20060101)

Expiration Date: 8/26/12018