Title:
RECOVERY OF NOBLE METAL
Document Type and Number:
Japanese Patent JPH01147026
Kind Code:
A
Abstract:
A process for recovering Group VIII noble metals from tar is provided. The process involves heating a mixture of the Group VIII noble metal, tar and methyl iodide in a closed system at a temperature in excess of 50 DEG C. During the process the Group VIII noble metal is precipitated in an insoluble form which can be separated by e.g. filtration. Precipitation preferably takes place at a temperature in the range 120 to 180 DEG C. The process is particularly suitable for the recovery of either rhodium or iridium.
Inventors:
DEIBITSUDO JIEFURII GARIBAA
Application Number:
JP26528188A
Publication Date:
June 08, 1989
Filing Date:
October 22, 1988
Export Citation:
Assignee:
BP CHEM INT LTD
International Classes:
B01D11/00; B01J31/40; C22B11/02; C01G55/00; C22B3/00; C22B3/40; C22B7/00; C22B11/00; (IPC1-7): C22B7/00; C22B11/02
Attorney, Agent or Firm:
Haruo Hamada