Abstract: This invention relates to a process for the manufacture of dimethylethylamine comprising reacting gaseous ethanol with a gaseous mixture of hydrogen and dimethylamine in the presence of a hydrogenation/dehydrogenation catalyst comprising copper and chromic oxide alone or admixed with barium oxide, zinc oxide, magnesium oxide, or other oxides, at a temperature of about 180.degree. C. to 240.degree. C. and an absolute pressure of about 1 to 15 bars for a time sufficient to form dimethylethylamine, the molar ratio of dimethylamine/ethanol being about 0.2 to 0.6 and the molar ratio of hydrogen/ethanol being about 3 to 10.

Abstract: A process for obtaining colorless and stable isophorone is characterized by distilling a raw synthesis mixture to remove alkaline agents, acetone, and a major portion of the water which is present, thermally treating the distilled mixture with an acidic ion-exchanging resin, neutralizing the effluent following said thermal treatment with an excess of an alkaline agent, adding water in a volume sufficient to dissolve any salts which may have formed, then again, neutralizing the now alkaline mixture wherein the pH of the resultant mixture is between 6.5 and 7, washing the mixture in water by decantation, and distilling the mixture under reduced pressure.