1. Oxidation reaction: Convert fatty acids in petroleum or fats in animal and vegetable oils into fatty acids or oleic acid through oxidation reaction.

2. Connection reaction: Connect fatty acids or oleic acid and glycerol together through a connection reaction (esterification reaction) to form triglycerides.

3. Hydrogenolysis reaction: Decompose triglyceride into glycerol and fatty acids or oleic acid through hydrogenolysis reaction.

4. Reactive amination: react hydrogenolyzed fatty acids or oleic acid with amine compounds (such as ethanolamine, propanolamine, etc.) to generate amide compounds.