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Low-cost and high-efficiency suspension liquid compound fertilizer and preparation method thereof

A suspension liquid and compound fertilizer technology, which is applied in the direction of urea compound fertilizer, nitrogen fertilizer, potash fertilizer, etc., can solve the problems of sedimentation and blockage of pipelines, and achieve the effects of strong adaptability, excellent dispersibility, and short preparation process

Inactive Publication Date: 2017-06-13
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to realize the fertilization requirements of water and fertilizer integration for the compound fertilizer composed of various chemical fertilizer raw materials at present, and overcome the defect that the high content of insoluble matter in the compound fertilizer is easy to cause sedimentation to block the pipeline in the process of water and fertilizer integrated fertilization, the present invention proposes a low Cost-effective suspension liquid compound fertilizer, which is prepared by suspending compound fertilizer into suspension liquid fertilizer, overcomes the settlement of insoluble matter and blockage of irrigation pipelines, and meets the needs of drip irrigation fertilization, spray fertigation, flush fertilization, foliar fertilization, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Add 20kg urea, 50kg monoammonium phosphate coarse powder, 5kg potassium sulfate, 2kg potassium feldspar powder, 1kg phosphogypsum, 0.5kg calcium sulfate, 0.1kg boric acid, 0.05kg zinc sulfate, 0.05kg manganese sulfate into 50kg water, Stir and dissolve at 40-60°C for 20 minutes, then let stand for 24 hours, pour out the supernatant to obtain supernatant A and precipitate B; after weighing, the supernatant A is 100.2kg, and the sediment B is 28.5kg;

[0031] 2) Add 0.3kg of the sodium alginate and xanthan gum composition to clear liquid A, stir and disperse to obtain a thick liquid;

[0032]3) Add 2.5kg of activated clay, zinc hydroxide, iron hydroxide, aluminum hydroxide, and hydrated silicon oxide to the precipitate B, and grind it in a drum mill for 60 minutes with an auxiliary agent to form a sol; the auxiliary The agent is mixed with humic acid and sulfamic acid with a mass ratio of 10:3, and the dosage is 0.2kg;

[0033] 4) Grind and disperse the sol obtained i...

Embodiment 2

[0037] 1) 20kg urea, 10kg ammonium dihydrogen phosphate concentrated crude liquid, 30kg potassium dihydrogen phosphate, 10kg potassium sulfate coarse powder, 10kg potassium feldspar powder, 5kg phosphate rock powder, 0.1kg boric acid, 0.05kg zinc sulfate, 0.05kg manganese sulfate Add 80kg of water, stir and dissolve at 40-60°C for 10min, then let it stand for 24h, pour out the supernatant to obtain supernatant A and precipitate B; 62kg;

[0038] 2) Add 0.2kg of the pregelatinized starch and xanthan gum composition into clear liquid A, stir and disperse to obtain a thick liquid;

[0039] 3) Add 3.5 kg of attapulgite, zinc hydroxide, iron hydroxide, aluminum hydroxide, and hydrated silicon oxide to the precipitate B, and grind it in a drum mill for 35 minutes with an auxiliary agent to form a sol; The auxiliary agent is mixed with humic acid and sulfamic acid at a mass ratio of 10:2, and the dosage is 0.8kg;

[0040] 4) Grind and disperse the sol obtained in step 3) with emuls...

Embodiment 3

[0043] 1) 15kg urea, 40kg monoammonium phosphate, 5kg potassium sulfate coarse powder, 20kg calcium magnesium phosphate fertilizer, 5kg phosphogypsum, 0.5kg calcium sulfate, 0.1kg zinc sulfate, 0.05kg tetrahydrate sodium molybdate, 0.1kg chelated iron, Add 0.1kg of boric acid into 100kg of water, stir and dissolve at 40-60°C for 15 minutes, then let it stand for 24 hours, pour out the supernatant to obtain supernatant A and precipitate B; after weighing the supernatant A is 155kg, and the sediment B 30.5kg;

[0044] 2) Add 0.45kg of the cellulose ether and xanthan gum composition to clear liquid A, stir and disperse to obtain a thick liquid;

[0045] 3) Add 2kg of sepiolite powder, zinc hydroxide, ferric hydroxide, aluminum hydroxide, and hydrated silicon oxide to the precipitate B, and grind it in a drum mill for 45 minutes with an auxiliary agent to form a sol; the auxiliary The agent is mixed with humic acid and sulfamic acid with a mass ratio of 10:2, and the dosage is 0....

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Abstract

The invention relates to the field of liquid fertilizers, and in particular, relates to a preparation method of a low-cost liquid compound fertilizer having high-efficiency suspension property. The preparation method is characterized in that a precipitate in the liquid compound fertilizer is isolated, and by assisting of humic acid and aminosulfonic acid, the precipitate and clay minerals, zinc hydroxide, ferric hydroxide, aluminum hydroxide and hydrated silicon oxide are ground and assembled into a sol in a grinding machine, so the precipitate has colloidal properties; the sol is protected by emulsified wax, so the sol has excellent dispersion, suspension and agglomeration resistance in an aqueous phase. The suspension fertilizer prepared by the method has high adaptability, is applicable for soluble fertilizers, micro soluble fertilizers and various coarse powders, crude liquids and raw ores containing nutrient elements, and especially is applicable for converting a traditional compound fertilizer into a high-efficiency suspension liquid fertilizer suitable for water and fertilizer integration. Compared with the traditional clear liquid fertilizer, the suspension fertilizer has low requirements on solubility and purity of raw materials, and greatly reduces the cost of the liquid fertilizer.

Description

technical field [0001] The invention relates to the field of liquid fertilizer, in particular to a low-cost liquid compound fertilizer with high-efficiency suspension, and further relates to a preparation method of the suspension liquid fertilizer. So as to adapt to the drip irrigation and fertilization demand of water and fertilizer integration. Background technique [0002] Fertilizers are usually absorbed by crop roots after being dissolved into ions in water. If there is no water as the carrier for absorption, it is easy to cause fertilizer loss. With the development of modern agriculture, there is an urgent need to improve fertilization methods, increase fertilizer utilization, reduce unreasonable inputs and environmental pollution, and the integration of water and fertilizer has become an inevitable choice. The water and fertilizer integration technology is to change the original method of fertilization by solid throwing into the method of irrigation and fertilization...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05C9/00C05D1/00C05D1/02C05D3/00C05D3/02C05D9/00C05D9/02C05F11/02C05G1/00
Inventor 陈庆曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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