Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1982-03-03
1983-06-07
Raymond, Richard
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
549509, C07D30736
Patent
active
043872360
ABSTRACT:
A process of removing solids from an aqueous redox catalyst system which solids are formed in the production of furan compounds from butadiene or a butadiene derivative by heating at 180.degree.-280.degree. C. in the presence of sufficient cupric ion or oxygen to oxidize the solids. The redox catalyst system contains iodine ions, copper at an oxidation state between 1 and 2, a solubilizing agent for cuprous ion which is soluble in water and forms a water-soluble complex with cuprous ion and, at least 20 moles per liter of water the medium havine a pH of less than 2.
REFERENCES:
patent: 4172838 (1979-10-01), Garnett et al.
patent: 4257960 (1981-03-01), Peterson
patent: 4268421 (1981-05-01), Garnett et al.
E. I. Du Pont de Nemours and Company
Raymond Richard
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