Preparation method of granular calcium-magnesium-phosphorus fertilizer containing various trace elements

A technology of microelement granules and calcium-magnesium phosphate fertilizer, which is applied to phosphate fertilizers, fertilization devices, fertilizer mixtures, etc., can solve problems such as unsuitability and single fertilizer efficiency of calcium-magnesium-phosphate fertilizers, and achieve balanced nutrients, uniform particle size, and good disintegration performance

Inactive Publication Date: 2020-01-14
HUBEI FORBON TECH
6 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, pure calcium, magnesium, and phosphate fertilizers have a single fertilizer effect and are not suitable for the needs of modern agricultu...
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Abstract

The invention relates to a preparation method of a granular calcium-magnesium-phosphorus fertilizer containing various trace elements, wherein a calcium-magnesium-phosphorus fertilizer, zinc sulfate,manganese oxide and sodium borate are used as main raw materials, lignosulfonate is used as a binder, the mixed powder of 75-89 parts by mass of powdery calcium-magnesium-phosphorus fertilizer, 6-14 parts by mass of zinc sulfate, 1-4 parts by mass of manganese oxide and 0.1-1 part by mass of sodium borate is used as a dry material, 3-7 parts by mass of lignosulfonate is used as a binder, and granulation is performed to prepare the round-particle granular calcium-magnesium-phosphorus fertilizer containing various trace elements. According to the invention, the prepared granular calcium-magnesium-phosphorus fertilizer containing various trace elements has advantages of uniform particle size, smooth surface, high strength, favorable disintegration property, low cost and balanced nutrients.

Application Domain

Fertilisers by pryogenic processesFertilizer mixtures

Technology Topic

Manganese oxideLignosulfonates +7

Examples

  • Experimental program(3)

Example Embodiment

[0009] Example 1
[0010] Using calcium magnesium phosphate fertilizer, zinc sulfate, manganese oxide, and sodium borate as main raw materials, with calcium lignosulfonate as a binder, granulation is carried out according to the following mass parts ratio: 75 parts of powdered calcium magnesium phosphate fertilizer, 6 parts of Parts of zinc sulfate, 1 part of manganese oxide, and 0.1 part of sodium borate mixed powder are used as dry materials, and 3 parts of calcium lignosulfonate are used as binders for granulation to obtain calcium-magnesium-phosphate fertilizers with round particles containing various trace elements.
[0011] The calcium-magnesium-phosphate fertilizers containing various trace elements prepared in this example all contain calcium, magnesium, phosphorus, zinc, manganese, sodium, and sulfur. The product has uniform particle size, smooth surface, and strength of ≥3kg/cm 2 , and the disintegration time is ≤1min, and the disintegration rate is ≥95%.

Example Embodiment

[0012] Embodiment 2
[0013] Using calcium magnesium phosphate fertilizer, zinc sulfate, manganese oxide, and sodium borate as main raw materials, with sodium lignosulfonate as a binder, granulation is carried out according to the following mass parts ratio: 89 parts of powdered calcium magnesium phosphate fertilizer, 14 parts of powdered calcium magnesium phosphate fertilizer, 14 Parts of zinc sulfate, 4 parts of manganese oxide, and 1 part of sodium borate mixed powder are used as dry materials, and 7 parts of sodium lignosulfonate are used as binders for granulation to obtain calcium-magnesium-phosphate fertilizers with round particles containing various trace elements.
[0014] The calcium-magnesium-phosphate fertilizers containing various trace elements prepared in this example all contain calcium, magnesium, phosphorus, zinc, manganese, sodium, and sulfur. The product has uniform particle size, smooth surface, and strength of ≥3kg/cm 2 , and the disintegration time is ≤1min, and the disintegration rate is ≥95%.

Example Embodiment

[0015] Embodiment 3
[0016] Using calcium magnesium phosphate fertilizer, zinc sulfate, manganese oxide, and sodium borate as main raw materials, with magnesium lignosulfonate as a binder, granulation is carried out according to the following mass parts ratio: 82 parts of powdered calcium magnesium phosphate fertilizer, 10 parts of Parts of zinc sulfate, 2.5 parts of manganese oxide, and 0.5 parts of sodium borate mixed powder are used as dry materials, and 5 parts of magnesium lignosulfonate are used as binders for granulation to obtain calcium-magnesium-phosphate fertilizers with round particles containing various trace elements.
[0017] The calcium-magnesium-phosphate fertilizers containing various trace elements prepared in this example all contain calcium, magnesium, phosphorus, zinc, manganese, sodium, and sulfur. The product has uniform particle size, smooth surface, and strength of ≥3kg/cm 2 , and the disintegration time is ≤1min, and the disintegration rate is ≥95%.

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Description & Claims & Application Information

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