Basf Se Corporation

Heinz Rütter

Johann-Peter Melder

Alexander Weck

Steffen Maas

Michael Schulz

Till Gerlach

Karl-Heinz Ross

Frank Haese

Anton Meier

Karl-Heinz Roβ

Horst Grafmans

A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution and the continuous distillative workup is effected in such a way that methanol and any other low boilers are initially removed overhead in a column A and the bottom effluent of column A is fed to a column B in which DMAC is removed via a side draw a purity of &#x2267;99.7% by weight.

Method for the production of N,N-dimethylacetamide (DMAC)

Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500&#xb0; C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO) and aluminum oxide (AlO), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of &#x3e;110 &#x3bc;mol of CO/g of the catalyst.

Processes for preparing ethylamines

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Kapellen, Belgium

Heinz Rütter