Calculation method of nitro compound fertilizer ingredient Consumption ratio – internal document

4 Nutrient content composition of typical nitro compound fertilizer products：

So here we strat with introducing these 4 formulas of Nitro or you call nitrate based npk compound fertilizer formula, these are all high nitrogen content npk compound fertilizer:

1. N-P2O5-K2O=32-4-0 (moisture content ≤0.5%) Ammoium Nitrate Phosphate ANP Fertilizer NPK
2. N-P2O5-K2O=30-6-0 (moisture content ≤0.5%) Ammoium Nitrate Phosphate ANP Fertilizer NPK
3. N-P2O5-K2O=20-7-8 (moisture content ≤0.5%) High tower nitrate sulfur based compound fertilizer
4. N-P2O5-K2O=21.5-10.5-11 (moisture content ≤0.5%) High tower nitrate sulfur based compound fertilizer

The chemical composition of the above main raw materials

1. Ammonium nitrate (NH4NO3); ω(N)≥34.5%, ω(H2O)≤0.8%
2. Monoammonium phosphate (NH4HPO4); ω(N)≥11%, ω(P)≥44%, ω(H2O)≤1.5%
3. Potassium sulfate (K2SO4); ω (K2O) ≥ 50%, ω (H2O) ≤ 1.5%
4. Additive: dolomite (CaO ≥ 30.4%, MgO ≥ 21.9%, CO2 ≥ 47.7%) or calcium carbonate powder, ω (H2O) ≤ 1.5%

N-P2O5-K2O(32-4-0) Ammoium Nitrate Phosphate ANP Fertilizer NPK ratio calculation (based on one ton of product)

Step 1: (32-4-0) NP fertilizer ratio calculation

• Each ton of product contains:

1. N=1000×32%=320kg
2. P2O5=1000×4%=40kg
3. Each ton of product requires the amount of monoammonium phosphate;
4. Then the N content in monoammonium phosphate = 90.91×11%=10Kg;
5. The amount of moisture brought in is 40/44=90.91 kg then 90.91×1.5%=1.36kg.
6. The amount of ammonium nitrate required per ton of fertilizer product (320-10)/34.5= 898.55kg;
7. The amount of moisture brought in is 898.55×0.8%=7.19kg.
8. Dry salt content per ton of product is 1000-1000×0.5%=995kg;
9. Moisture content per ton of product is 1000×0.5%=5kg;
10. Additive dosage 995-(898.55-7.19)-(90.91-1.36)=14.09kg

Step 2: Formula for producing ammonium nitrate phosphorus with N-P-k=32-4-0 per ton:

1. Ammonium nitrate solution (99.2%): 898.55 kg
2. Monoammonium phosphate: 90.91kg
3. Additive: 14.09 kg

Step 3: Calculate actual consumption of raw materials per ton of N-P-k=(32-4-0) products

• Because there are certain mechanical losses during the production process, the mechanical losses of monoammonium phosphate, potassium sulfate, and additives are calculated as 1.0%, and the mechanical losses of ammonium nitrate solution are not considered. Then the actual consumption of raw materials per ton of products is:

1. Ammonium nitrate solution (99.2%): 898.55 kg
2. Monoammonium phosphate: 136.36/(1~1.0)=137.73kg
3. Additive: 41.21/(1~1.0)= 41.64kg

Step 4: Total consumption of raw materials per ton of N-P-k=(32-4-0) products

• The total amount of nitro compound fertilizer produced from 187,500 tons of ammonium nitrate: 187,500 tons ÷ 0.992 ÷ 0.89855 = 210,350 tons
• Then monoammonium phosphate is needed: 210350 tons × 0.09183 tons/ton = 19316 tons
• Additives required: 210350 tons × 0.01423 tons/ton = 2993 tons

N-P2O5-K2O(30-6-0) Ammoium Nitrate Phosphate ANP Fertilizer NP ratio calculation (based on one ton of product)

Step 1: (30-6-0) NP fertilizer ratio calculation

• Each ton of product contains:

1. N=1000×30%=300kg
2. P2O5=1000×6%=60kg
3. The amount of monoammonium phosphate required per ton of product is: 60/44=136.36kg;
4. Then the N content in monoammonium phosphate=136.36×11%=15Kg.
5. The amount of moisture brought in is 136.36×1.5%=2.05kg.
6. The amount of ammonium nitrate required per ton of product is: (300-15)/34.5=826.09kg;
7. The amount of moisture brought in is 826.09×0.8%=6.61kg.
8. Dry salt content per ton of product is 1000-1000×0.5%=995kg;
9. Moisture content per ton of product is 1000×0.5%=5kg;
10. Additive dosage 995-(826.09-6.61)-(136.36-2.05)=41.21kg

Step2: Formula for producing ammonium nitrate phosphorus with N-P-k=30-6-0 per ton:

1. Ammonium nitrate solution (99.2%): 826.09 kg
2. Monoammonium phosphate: 136.36 kg
3. Additive: 41.21kg

Step3: Calculate actual consumption of raw materials per ton of N-P-k=30-6-0 products

• Because there are certain mechanical losses during the production process, the mechanical losses of monoammonium phosphate, potassium sulfate, and additives are calculated as 1.0%, and the mechanical losses of ammonium nitrate solution are not considered. Then the actual consumption of raw materials per ton of products is:

1. Ammonium nitrate solution (99.2%): 826.09 kg
2. Monoammonium phosphate: 136.36/(1~1.0)=137.75kg
3. Additive: 41.21/(1~1.0)=41.63kg

Step 4: Total consumption of raw materials per ton of N-P-k=(30-6-0) products

• The total amount of this type of nitro compound fertilizer produced from 187,500 tons of ammonium nitrate: 187,500 tons ÷ 0.992 ÷ 0.82609 = 228,803 tons
• Then monoammonium phosphate is needed: 228803 tons × 0.13774 tons/ton = 31515 tons
• Additives required: 228803 tons × 0.04163 tons/ton = 9525 tons

N-P2O5-K2O(20-7-8) High tower nitrate sulfur based npk compound fertilizer ratio calculation (based on one ton of product)

Step 1: (30-6-0) High tower fully water-soluble NPK fertilizer ratio calculation

• Each ton of fully water soluble compound fertilizer product contains:

1. N=1000×20%=200kg
2. P2O5=1000×7%=70kg
3. K2O=1000×8%=80kg
4. The amount of potassium sulfate required per ton of product is: 80/50=160kg;
5. The amount of moisture brought in is 160×1.5%=2.4kg.
6. The amount of monoammonium phosphate required per ton of product is: 70/44=159.09kg;
7. Then the N content in monoammonium phosphate=159.09×11%=17.5Kg;
8. The amount of moisture brought in is 159.09×1.5%=2.39kg.
9. The amount of ammonium nitrate required per ton of product is: (200-17.5)/34.5=529.88kg;
10. The amount of moisture brought in is 528.99×0.8%=4.23kg.
11. Dry salt content per ton of product is 1000-1000×0.5%=995kg;
12. Moisture content per ton of product is 1000×0.5%=5kg;
13. Additive dosage 995-(528.99-4.23)-(159.09-2.39)-(160-2.4)=155.94kg

Step2: Formula for producing High tower fully water soluble fertilizer with N-P-k=20-7-8 per ton:

1. Ammonium nitrate solution (99.2%): 528.99kg
2. Monoammonium phosphate: 159.09 kg
3. Potassium sulfate: 160 kg
4. Additive: 155.94 kg

Step3: Calculate actual consumption of raw materials per ton of N-P-K=20-7-8 fully water soluble fertilizer products

• Because there are certain mechanical losses during the production process, the mechanical losses of monoammonium phosphate, potassium sulfate, and additives are calculated as 1.0%, and the mechanical losses of ammonium nitrate solution are not considered. Then the actual consumption of raw materials per ton of products is:

1. Ammonium nitrate solution (99.2%): 528.99 kg
2. Monoammonium phosphate: 159.09/(1~1.0)=160.7kg
3. Potassium sulfate: 160/(1~1.0)=161.62kg
4. Additive: 155.94/(1~1.0)=157.52kg

Step 4: Total consumption of raw materials per ton of N-P-k=(30-6-0) products

• The total amount of this type of nitro compound fertilizer produced from 187,500 tons of ammonium nitrate: 187,500 tons ÷ 0.992 ÷ 0.52899 = 357,307 tons
• Then monoammonium phosphate is needed: 357307 tons × 0.16070 tons/ton = 57419 tons
• Potassium sulfate required: 357307 tons × 0.16162 tons/ton = 57748 tons
• Additives required: 357307 tons × 0.15752 tons/ton = 56283 tons

N-P2O5-K2O(21.5-10.5-11) High tower melt granulation npk compound fertilizer ratio calculation (based on 1 ton of product)

Step 1: (21.5-10.5-11) High tower melt granulation NPK fertilizer ratio calculation

• Each ton of fully water soluble compound fertilizer product contains:

1. N=1000×21.5%=215kg
2. P2O5=1000×10.5%=105kg
3. K2O=1000×11%=110kg
4. The amount of potassium sulfate required per ton of product;
5. The amount of moisture brought in is 220×1.5%=3.3kg.
6. The amount of monoammonium phosphate required per ton of product: 105/44=238.64kg;
7. Then the N content in monoammonium phosphate = 238.64 × 11% = 26.25Kg;
8. The amount of moisture brought in is 238.64×1.5%=3.58kg.
9. The amount of ammonium nitrate required per ton of product: (215-26.25)/34.5=547.10kg;
10. The amount of moisture brought in is 547.10×0.8%=4.38kg.
11. Dry salt content per ton of product is 1000-1000×0.5%=995kg;
12. Moisture content per ton of product is 1000×0.5%=5kg;
13. Additive dosage: 995-(547.10-4.38)-(238.64-3.58)-(220-3.3)=0.52kg

Step2: Formula for producing High tower prilling spray granulator fertilizer with N-P-k=20-7-8 per ton:

1. Ammonium nitrate solution (99.2%): 547.10kg
2. Monoammonium phosphate: 238.64 kg
3. Potassium sulfate: 220 kg
4. Additive: 0.52kg

Step3: Calculate actual consumption of raw materials per ton of N-P-K=20-7-8 spray granulation fully water soluble fertilizer products

• Because there are certain mechanical losses during the production process, the mechanical losses of monoammonium phosphate, potassium sulfate, and additives are calculated as 1.0%, and the mechanical losses of ammonium nitrate solution are not considered. Then the actual consumption of raw materials per ton of products is:

1. Ammonium nitrate solution (99.2%): 547.10 kg
2. Monoammonium phosphate: 238.63/(1~1.0)=241.06kg
3. Potassium sulfate: 220/(1~1.0)=223.22kg
4. Additive: 0.52/(1~1.0)=0.54kg

Step 4: Total consumption of raw materials per ton of N-P-k=(30-6-0) products

• The total amount of this type of nitro compound fertilizer produced from 187,500 tons of ammonium nitrate: 187,500 tons ÷ 0.992 ÷ 0.54710 = 345,480 ton.

1. Then monoammonium phosphate is needed: 345480 tons × 0.24105 tons/ton = 83278 tons
2. Potassium sulfate required: 345480 tons × 0.22222 tons/ton = 76773 tons
3. Additives required: 345480 tons × 0.00053 tons/ton = 183.10 tons.

Conclusion: How to calculate raw material consumption of NPK compound fertilizer

In this article, we focus on the four formulas of nitro fully water-soluble compound fertilizer, which are N-p-k=(32-4-0)(30-6-0)(20-7-8)(21.5-10.5-11). It also introduces how to calculate the amount of raw materials used in production and the amount of compound fertilizer additives based on the formula, and how to calculate the moisture content required for the production of nitro compound fertilizer. This is an internal document of a compound fertilizer factory. It is mainly used by front-line production employees when making ingredients. I hope it can help readers learn how to calculate the amount of raw materials for fully water-soluble high-tower granulated compound fertilizer.