Stripper-reactor for volatile cobalt recovery

Patent · Tue Aug 10 00:00:00 EDT 1993

OSTI ID:6230924

Nadler, K C; Broussard, T R; Pitre, J K

A method is described for removing cobalt values from the crude product of a cobalt-catalyzed hydroformylation reaction which comprises: (a) contacting said crude product in a stripper-reactor with a stream of stripping gas in the presence of water and an organic acid to entrain volatile cobalt carbonyl in said stripping gas, whereby said entrained volatile cobalt carbonyl are taken out overhead and organic hydroformylation reaction products and water containing water soluble cobaltous salts are taken out as bottoms; (b) withdrawing said organic hydroformulation reaction products and said water containing water soluble cobaltous salts from said stripper-reactor; (c) withdrawing the stripping gas with said entrained volatile cobalt carbonyl from said stripper-reactor; (d) refluxing the withdrawn stripping gas with said entrained volatile cobalt carbonyl thereby producing a concentrated volatile cobalt carbonyl and a reflux product; (e) withdrawing said concentrated volatile cobalt carbonyl from the reflux means; and (f) recycling said reflux product to a location on said stripperreactor which is capable of forming a stripping zone in the upper portion of said stripper-reactor and a reaction zone in the lower portion of said stripper-reactor.

• Assignee: Exxon Chemical Patents Inc., Unden, NJ (United States)
• Patent Number(s): US 5235112; A
• Application Number: PPN: US 7-891339
• OSTI ID: 6230924
• Resource Relation: Patent File Date: 29 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
COBALT
MATERIALS RECOVERY
PETROLEUM PRODUCTS
DEMETALLIZATION
ACYLATION
CARBONYLS
COBALT COMPOUNDS
DISTILLATION
ENTRAINMENT
GASES
ORGANIC ACIDS
RECYCLING
SOLUBILITY
VOLATILE MATTER
WATER VAPOR
CHEMICAL REACTIONS
ELEMENTS
FLUIDS
MANAGEMENT
MATTER
METALS
ORGANIC COMPOUNDS
PROCESSING
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
VAPORS
WASTE MANAGEMENT
WASTE PROCESSING
020400* - Petroleum- Processing