Preparation process of disproportionated rosin potassium soap with solid content of 80 percent

The invention discloses a preparation process of disproportionated rosin potassium soap with a solid content of 80 percent. The preparation process comprises the following steps: adding 95 to 105 parts of solid disproportionate rosin and 55 to 80 parts of potassium hydroxide solution with the concentration of 20 to 25 percent into a saponification reaction kettle, heating to 80 to 100 DEG C, firstly performing the saponification reaction for 1 to 2 hours, and then cooling and discharging the material, thus obtaining the disproportionate rosin potassium soap with the solid content of 80 percent; and heating the disproportionate rosin potassium soap with the solid content of 80 percent into a reaction container, when the temperature increases to 70 to 90 DEG C, dropwise adding hydrogen peroxide to perform the discoloration reaction, wherein the mass ratio of the hydrogen peroxide to the disproportionate rosin potassium soap with the solid content of 80 percent is (0.002 to 0.005): 1, then stirring for 20 to 40