Amide-based compounds, production, recovery, purification and uses thereof
View Patent ↗Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced by providing an organic liquid comprising at least one oxime, providing at least one catalyst, adding the at least one catalyst to the organic liquid to form a rearrangement mass, wherein the rearrangement mass comprises at least one amide, at least one impurity, and the at least one catalyst, and heating the rearrangement mass to a temperature of at least about 115° C. for a period of time in order to sulfonate, break down and/or reduce the concentration of some of the at least one impurity in the rearrangement mass.
1. An impure amide product comprising an amide-based composition, wherein the amide-based composition comprises a heated rearrangement mass, wherein the heated rearrangement mass comprises at least one amide, at least one catalyst and at least one impurity that has been broken down, sulfonated or otherwise significantly reduced in concentration, and wherein the rearrangement mass has been prepared by heating to a temperature of at least about 115° C. for a period of time in order to sulfonate some of the at least one impurity in the rearrangement mass; and
water, at least one base and at least one solvent.
2. The impure amide product of claim 1 , wherein the amide-based composition comprises a dual-phase liquid.
3. The impure amide product of claim 2 , wherein the dual-phase liquid comprises an aqueous phase and an organic phase.
4. The impure amide product of claim 3 , wherein the aqueous phase comprises the water and an acid salt formed from the at least one base.
5. The impure amide product of claim 3 , wherein the organic phase comprises the at least one solvent and the at least one amide.