Title:
PALLADIUM CATALYST RECOVERY
Document Type and Number:
WIPO Patent Application WO1997030786
Kind Code:
A1
Abstract:
Palladium is recovered from a mixture of high boiling organic compounds by extracting with an aqueous solution of hydrochloric acid which may contain an oxidizing agent, then distilling off the hydrochloric acid and decomposing the oxidizing agent, converting the palladium into crotyl palladium chloride, and extracting the palladium with chlorobutene from the aqueous phase.
Inventors:
CHIANG CHEN-CHOU
Application Number:
PCT/US1997/002253
Publication Date:
August 28, 1997
Filing Date:
February 12, 1997
Export Citation:
Assignee:
DU PONT (US)
International Classes:
B01J23/96; C07C51/58; (IPC1-7): B01J23/96; C07C51/58; C07C57/66
Foreign References:
| US4120819A | 1978-10-17 | |||
| US3488295A | 1970-01-06 | |||
| US3879311A | 1975-04-22 |
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