A kind of synergistic calcium superphosphate and its preparation method and application
A technology of calcium superphosphate and synergist, which is applied in application, fertilizer mixture, fertilization device, etc., can solve the problems of phosphoric acid degradation, rareness, and poor scattering, so as to improve crop effectiveness, reduce production cost, The effect of reducing environmental stress
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Embodiment 1
[0059] (1) Hydrolysis: the pig hair (order number is 60 orders) through pulverization is added in the reactor that mixed acid is housed, and mixed acid is 4:4 by mass ratio by 15wt% hydrochloric acid, 15wt% nitric acid and 20wt% sulfuric acid: 2, the mass ratio of pig hair and mixed acid is 1:1.6, cover the reaction kettle, heat up to 100°C, stir and hydrolyze for 6 hours to obtain hydrolyzate I;
[0060] (2) Secondary hydrolysis: Add molasses powder and citric acid residue to the hydrolyzate I in a mass ratio of 1:3 to the mixed acid, stir evenly, and continue to add 30% hydrogen peroxide, hydrogen peroxide and organic materials The mass ratio is 1:20, cover the reaction kettle, hydrolyze at 80°C for 2 hours, open the lid of the reaction kettle, continue to stir and react for 2 hours to obtain the hydrolyzate II;
[0061] (3) Neutralization: adjust the pH value of hydrolyzate II to 3.5 with sodium hydroxide;
[0062] (4) chelation, synergism: adding chitosan and sorbitol to ...
Embodiment 2
[0064] (1) Hydrolysis: Add the pulverized ox hair (80 mesh) into the reactor that mixed acid is housed, mixed acid is by the ratio of 7:2:1 by mass ratio with 20wt% hydrochloric acid, 25wt% nitric acid and 20wt% sulfuric acid Composition, the mass ratio of pig hair and mixed acid is 1:1.8, cover the reaction kettle, heat up to 110°C, and hydrolyze for 7 hours to obtain hydrolyzate I;
[0065] (2) Secondary hydrolysis: add weathered coal and citric acid slag into the hydrolyzate I in a ratio of 1:2 to the mixed acid mass ratio, stir evenly, and continue to add 30% hydrogen peroxide, hydrogen peroxide and organic materials The mass ratio is 1:25, cover the reaction kettle, continue hydrolysis at 90°C for 2.5 hours, open the lid of the reaction kettle, continue to stir and react for 2 hours to obtain hydrolyzate II;
[0066] (3) Neutralization: adjust the pH value of the hydrolyzate II to 4.0 with sodium hydroxide and trisodium citrate;
[0067] (4) Chelation and synergism: addi...
Embodiment 3
[0069] (1) Hydrolysis: Put the pulverized pig hair (60 mesh) into the reaction kettle equipped with mixed acid, the mixed acid is composed of 20wt% hydrochloric acid, 20wt% nitric acid and 20wt% sulfuric acid in a mass ratio of 7:2:1 , the mass ratio of pig hair and mixed acid is 1:2, cover the reaction kettle, heat up to 120°C, and hydrolyze for 8 hours to obtain hydrolyzate I;
[0070] (2) Secondary hydrolysis: add weathered coal and yeast fermented dextran waste liquid into hydrolyzate I at a mass ratio of 1:2.5 to the mixed acid, stir evenly, and continue to add 30% hydrogen peroxide , the mass ratio of hydrogen peroxide to organic material is 1:30, cover the reaction kettle, continue hydrolysis at 90°C for 3 hours, open the lid of the reaction kettle, continue to stir and react for 2 hours to obtain hydrolyzate II;
[0071] (3) Neutralization: the pH value of the hydrolyzate II is adjusted to 4.5 with potassium hydroxide and ammonia;
[0072] (4) Chelation and synergism:...
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