Calcium hydrophosphate suspending agent

A technology of calcium hydrogen phosphate and suspending agent, which is applied in the direction of dicalcium phosphate fertilizer, phosphate fertilizer, calcium fertilizer, etc., and can solve problems such as slow speed and difficult environmental pollution

Active Publication Date: 2008-11-12
东莞市施普旺生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the disadvantages of slow speed, easy to produce environmental pollution or difficult to absorb in the existing technology of calcium supplementation for fruit trees and vegetables, and develop a high-content, environmentally friendly, easy-to-absorb and high-utility calcium hydrogen phosphate suspending agent

Method used

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  • Calcium hydrophosphate suspending agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 60% of calcium hydrogen phosphate raw powder, 6% of wetting agent sodium alkyl phosphate, 4% of dispersing agent nonylphenol ether phosphate, 3% of sodium lignosulfonate, 4.1% of antifreeze propylene glycol, and 22% of water. The above raw materials are mixed according to the general method, poured into a high-shear homogenizer for stirring, and then poured into a sand mill for sanding. After sanding, add thickener xanthan gum 0.1% and defoamer tributyl phosphate 0.8% of ester, after fully stirring, 60% calcium hydrogen phosphate suspending agent was obtained. After inspection, the effective ingredient calcium hydrogen phosphate is 59.8%, the pH value is 7.5, the suspension rate is ≥90%, the sieving (through a 70μm test sieve) is ≥99%, and the content of harmful substances such as mercury, arsenic, cadmium, lead, and chromium is ≤0.05%. After dumping Residue ≤ 3%, residue ≤ 0.05% after washing, and the stability of accelerated hot storage and accelerated cold stor...

Embodiment 2

[0027] Take by weighing 51% of the original powder of calcium hydrogen phosphate, 5% of the wetting agent nonylphenol ethoxylate (10EO), 5% of the dispersant phenethylphenol polyoxyethylene ether formaldehyde condensate, 3% of sodium lignosulfonate, Antifreeze propylene glycol 5%, water 30%, mix the above raw materials according to the general method, pour them into a high-shear homogenizer for stirring, and then pour them into a sand mill for sanding. After sanding, add thickener yellow 0.3% of raw gum and 0.7% of polyoxyethylene fatty acid ester as a defoaming agent are fully stirred to obtain a 50% calcium hydrogen phosphate suspending agent. After inspection, the effective ingredient is calcium hydrogen phosphate 50.2%, the pH value is 7.9, the suspension rate is ≥ 95%, the sieving (through a 75μm test sieve) is ≥ 99.6%, and the content of harmful substances such as mercury, arsenic, cadmium, lead, and chromium is ≤ 0.05%. After dumping Residue ≤ 3%, residue ≤ 0.05% after ...

Embodiment 3

[0029] Weigh 51% of the original powder of calcium hydrogen phosphate, 6% of wetting agent styrene-ethylphenol polyoxyethylene ether condensate, 8% of dispersant nonylphenol ether phosphate, 5% of antifreeze ethylene glycol, and 29.2% of water. The above raw materials are mixed according to the general method, poured into a high-shear homogenizer for stirring, and then poured into a sand mill for sanding. After sanding, add thickener xanthan gum 0.3% and defoamer fatty acid polyoxygen Vinyl ester 0.5%, get 50% calcium hydrogen phosphate suspending agent after fully stirring. After inspection, the effective ingredient calcium hydrogen phosphate is 50.1%, the pH value is 7.7, the suspension rate is ≥92%, the sieving (through a 75μm test sieve) is ≥99.5%, and the content of harmful substances such as mercury, arsenic, cadmium, lead, and chromium is ≤0.05%. After dumping Residue ≤ 2%, residue ≤ 0.05% after washing, and the stability of accelerated hot storage and accelerated cold ...

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Abstract

The invention relates to a microelement fertilizer for agricultural use. The microelement fertilizer is calcium hydrogen phosphate suspending agent which is sticky with high concentration. The compositions by mass percent of the microelement fertilizer are: 20 to 80 percent of raw calcium hydrogen phosphate powder, 1 to 7 percent of wetting agent, 2 to 10 percent of dispersant, 2 to 6 percent of antifreeze, 0.2 to 1.0 percent of defoaming agent, 0.1 to 0.8 percent of thickening agent, and 2.2 to 76.7 percent of water. The compositions are mixed evenly with high shear and are grinded to the fineness between 0.5 and 6 micron; the viscosity coefficient of the mixture is adjusted by the thickening agent to obtain the calcium hydrogen phosphate suspending agent. The microelement fertilizer is prepared through adopting the high-performance addition agent and advanced technology. The microelement fertilizer is characterized by high content of activity components, good dispersion performance and stable heat storing performance. In the application, the microelement fertilizer has the advantages of rapid calcium supplement speed, good effect, small dosage of the fertilizer and environmental protection.

Description

technical field [0001] The invention relates to an agricultural trace element fertilizer, calcium hydrogen phosphate suspending agent and its components. technical background [0002] In the field of agricultural production in our country, it is necessary to use a variety of agricultural fertilizers. Among them, nitrogen, phosphorus and potassium are the most needed elements of crops, called macroelements; boron (B), manganese (Mn), zinc (Zn), copper (Cu), molybdenum (Mo), iron (Fe), chlorine ( Cl) element crops require a small amount and are called trace elements; calcium (Ca), magnesium (Mg), and sulfur (S) elements require an intermediate amount and are called middle trace elements. In the process of agricultural production in my country, macronutrients are supplemented by applying a large amount of chemical compound fertilizers to the soil; micronutrients are also paid attention to by farmers, and crops are supplemented by applying organic fertilizers or spraying microe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05B3/00C05D3/00
Inventor 贺民军林雨佳赵军朱卫锋王新军
Owner 东莞市施普旺生物科技有限公司
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