Preparation process of hydrogenated rosin

The invention discloses a preparation process of hydrogenated rosin in the field of preparation of hydrogenated rosin. The preparation process comprises the following steps: step 1, selecting rosin; step 2, weighing and cracking rosin; the preparation method comprises the following steps: weighing 500-600g of rosin, breaking the rosin into powder with the particle size of 5-10mm, and putting the powder into an autoclave; 3, adding solvent oil and a framework nickel catalyst; the method comprises the following steps: simultaneously pouring 500-600g of solvent oil and 25-50g of a skeleton nickel catalyst into a high-pressure kettle, and sealing with an upper cover; 4, introducing hydrogen, and stirring; vacuumizing the interior of the high-pressure kettle by using a vacuum pump until the absolute pressure is 0.003 MPa, introducing 1.0 MPa hydrogen into the high-pressure kettle, maintaining the pressure and detecting leakage for 15 minutes, repeatedly replacing by using 0.3 MPa hydrogen, and starting a stirrer o