Method for preparing CPVC resin filling agent by adopting ardealite

[0025] The impurity removal treatment is carried out on the phosphogypsum, and the weight percentage of impurities contained in the phosphogypsum is controlled to 4%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, the by-product potato dregs obtained after starch extraction from potatoes, α-amylase, and okara obtained from the production of soybean milk are placed in a fermentation container at a mass ratio of 0.3:2:0.02:1, and lactic acid bacteria are added to the fermentation container, and stirred evenly , anaerobic fermentation at 38°C for 40 hours, and lactic acid was obtained after separation and purification; the number of live lactic acid bacteria contained 4 million per gram of potato dregs; in terms of mass fraction, the starch content of potato dregs was 33%; On a fractional basis, okara contains 15% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:2 and put them into a

[0027] Perform impurity removal treatment on the phosphogypsum, and control the weight percentage of impurities contained in the phosphogypsum to 3%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, the by-product potato dregs after starch extraction from potatoes, α-amylase, and the bean dregs obtained from producing tofu are placed in a fermentation container in a mass ratio of 0.4:2.5:0.025:1.5, and lactic acid bacteria are added to the fermentation container, and stirred evenly. Anaerobic fermentation at 40°C for 32 hours, separation and purification to obtain lactic acid; the number of viable lactic acid bacteria per gram of potato residue is 4.5 million; in terms of mass fraction, the starch content of potato residue is 37%; Calculated, okara contains 16% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:2.5 and put them into a three-neck bottle with a stirrer, add hardened oil

[0029] The impurity removal treatment is carried out on the phosphogypsum, and the weight percentage of impurities contained in the phosphogypsum is controlled to 2%. React phosphogypsum with excess sodium carbonate, filter, wash and dry to obtain calcium carbonate. Calcium carbonate, the by-product potato dregs after starch extraction from potatoes, α-amylase, and the bean dregs obtained from producing tofu are placed in a fermentation container in a mass ratio of 0.5:3:0.03:2, and lactic acid bacteria are added to the fermentation container, and stirred evenly. Anaerobic fermentation at 45°C for 20 hours, separation and purification to obtain lactic acid; the number of viable lactic acid bacteria per gram of potato residue is 5 million; in terms of mass fraction, the sugar content of potato residue and α-amylase is 40 %; In terms of mass fraction, okara contains 22% protein. Mix the obtained lactic acid and stearic acid in a molar ratio of 1:3 and put them into a three-necked