【発明の名称】触媒の回収 - E.I.DU PONT DE NEMOURS AND COMPANY

Title:

【発明の名称】触媒の回収

Document Type and Number:

Japanese Patent JP2000509650

Kind Code:

A

Abstract:

Heavy metal catalyst-containing residue obtained from plant for the production of aromatic polycarboxylic acid is processed by dissolving substantially the whole of the residue in an aqueous medium and the catalyst metals are precipitated from the solution, preferably using carbonate and/or bicarbonate ions.

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Inventors:

Jeffrey, Ian, Charles.
Whiston, Keith.

Application Number:

JP51106398A

Publication Date:

August 02, 2000

Filing Date:

August 08, 1997

Export Citation:

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Assignee:

E.I.DU PONT DE NEMOURS AND COMPANY

International Classes:

B01J23/94; B01J38/68; C07C51/42; C07C51/50; C07C63/26; (IPC1-7): B01J38/68; B01J23/94; C07C51/50; C07C63/26

Attorney, Agent or Firm:

Yoshikazu Tani (2 outside)

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