Water-soluble calcareous fertilizer and preparation method thereof
A technology of water-soluble calcium and ammonia water, which is applied in the direction of calcium fertilizer, nitrogen fertilizer, inorganic fertilizer, etc., can solve the problems of poor absorption performance and inability to fully satisfy calcium supplementation, so as to improve mutual absorption, prevent and treat physiological diseases , Improve the effect of calcium fertilizer fertilization
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Embodiment 1
[0091] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:
[0092] 1). Measure 750 parts of nitric acid, 350 parts of calcium oxide, and 250 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;
[0093] 2). Put 750 parts of nitric acid and 350 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 1.5 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;
[0094] 3). Put 250 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor, which is ready for use;
[0095] B, the preparation method and steps of auxiliary agent are:
[0096] 1). Me...
Embodiment 2
[0101] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:
[0102] 1). Measure 550 parts of nitric acid, 350 parts of calcium oxide, and 150 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;
[0103] 2). Put 550 parts of nitric acid and 350 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 2 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;
[0104] 3). Place 150 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor. ;
[0105] B, the preparation method and steps of auxiliary agent are:
[0106] 1). Measure 10 parts of bor...
Embodiment 3
[0111] The preparation method and steps of A, calcium ammonium nitrate mother liquor are:
[0112] 1). Measure 500 parts of nitric acid, 300 parts of calcium oxide, and 150 parts of ammonia water according to the parts by weight of the components and place them in respective containers for subsequent use;
[0113] 2). Put 500 parts of nitric acid and 300 parts of calcium oxide spare in step 1) into the reactor for neutralization reaction, neutralize for 1.5 hours, then filter through filter press, retain the reaction filtrate of nitric acid and calcium oxide, set aside, discard filter residue;
[0114] 3). Place 150 parts of all the nitric acid, calcium oxide neutralization reaction filtrate and ammonia water used in step 2) in an evaporator and keep the temperature at 150°C-200°C for 4 hours to evaporate and concentrate to obtain calcium ammonium nitrate mother liquor. ;
[0115] B, the preparation method and steps of auxiliary agent are:
[0116] 1). Measure 30 parts of b...
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