Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Patent
1990-09-05
1992-03-17
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
423365, 423417, 502161, 502200, 585369, B01J 2118, B01J 3120, B01J 3118, C01G 104
Patent
active
050968700
ABSTRACT:
Catalysts suitable for the dimerization of a diolefin, e.g. butadiene to 4-vinylcyclohexene, are prepared by reacting (1) iron chloride and sodium nitrite or alternatively (2) iron nitrosyl chloride with (3) carbon monoxide in an organic solvent in the presence of iron. The catalyst solution is preferably filtered prior to use. While the reaction employing iron chloride and sodium nitrile is preferred, the catalyst produced by either method contains a minimum of reducing agent and by-products. It can be isolated and stored in the absence of diolefin monomer and carbon monoxide while retaining its stability and activity.
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Konopka Paul E.
The Dow Chemical Company
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