Manufacture of oxygenated compounds
AssigneeNational Distillers and Chemical Corporation
InventorDavid W. Smith
Life of this patent
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Abstract
A process is provided for reacting carbon monoxide and hydrogen in the presence of halogen-containing ruthenium carbonyl complexes as catalysts to produce acetaldehyde and/or ethanol.
Claims46
A process for forming acetaldehyde in a first stage reaction and then reducing said aldehyde to form ethanol in a second stage reaction which comprises reacting carbon monoxide and hydrogen at a temperature of from about 150.degree. to about 300.degree. C. and superatmospheric pressure in the presence of a catalyst system comprising (a) a preformed ruthenium carbonyl complex or a ruthenium carbonyl complex formed in situ by reaction between ruthenium metal and carbon monoxide or a ruthenium compound which undergoes reaction with carbon monoxide to provide said ruthenium carbonyl complex and (b) a source of halide anion, said catalyst system being present at least during said first reaction stage.
A process for producing acetaldehyde and/or ethanol which comprises reacting carbon monoxide and hydrogen at a temperature of from about 150.degree. to 300.degree. C. and superatmospheric pressure in the presence of a catalyst system comprising (a) a preformed carbonyl complex or a ruthenium carbonyl complex formed in situ by reaction between ruthenium metal and carbon monoxide or a ruthenium compound which undergoes reaction with carbon monoxide to provide said ruthenium carbonyl complex and (b) a source of halide anion, and recovering acetaldehyde and/or ethanol from said reaction.
A process for producing ethanol and/or acetaldehyde by reacting carbon monoxide and hydrogen in a solvent comprising an aprotic organic amide at a temperature of from about 150.degree. to about 300.degree. C. and superatmospheric pressure in the presence of a catalyst system comprised of ruthenium in complex combination with carbon monoxide and a halide ligand as catalyst therefor and recovering ethanol and/or acetaldehyde.
Dependencies are inferred from the claim text.