Promoted amines catalysis
AssigneeUnion Carbide Chemicals & Plastics Technology Corporation
InventorsArthur R. Doumaux, Jr., David J. Schreck, Stephen W. King, George A. Skoler
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Abstract
This invention relates to a process for making amines by condensing an amino compound in the presence of a condensation catalyst and a condensation catalyst promoter, wherein said condensation catalyst promoter is present in an amount sufficient to promote the condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).
Claims39
A process of making polyalkylene polyamines which comprises condensing, in the absence of hydrogen as a reactant,
- (i) an alkanolamine with an alkyleneamine,
- (ii) an alkanolamine with itself or another alkanolamine, or
- (iii) an alkylene glycol with an alkyleneamine,
- optionally in the presence of ammonia, under condensation conditions including the presence of a condensation catalyst consisting essentially of a metatungstate and a condensation catalyst promoter free of phosphorus-containing compounds, wherein said condensation catalyst promoter differs from said condensation catalyst and is present in an amount sufficient to promote the condensation catalyst.
A process of making alkylamines which comprises condensing, in the absence of hydrogen as a reactant, an alcohol and at least one of a primary amine, a secondary amine or a tertiary amine in the presence of a condensation catalyst consisting essentially of a metatungstate and a condensation catalyst promoter free of phosphorus-containing compounds, wherein said condensation catalyst promoter differs from said condensation catalyst and is present in an amount sufficient to promote the condensation catalyst.
The process of claim 187 wherein the alkyleneamine is diethylenetriamine.
Dependencies are inferred from the claim text.