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Aqueous compound fertilizer anti-blocking agent and preparation method thereof

An anti-caking agent and water-soluble technology, applied in the field of water-soluble compound fertilizer anti-caking agent and its preparation, can solve the problems of large consumption of mechanical oil, soil, water quality, crop pollution, etc., reduce cohesion, promote The effect of growth absorption and enhanced water absorption capacity

Inactive Publication Date: 2018-02-16
赵建平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: the current oil-soluble anti-caking agent consumes a large amount of machine oil as a solvent, and the product after the degradation of the ammonium salt surfactant in the soil contains carcinogenic substance nitrous acid components, which will cause damage to the To solve the problem of soil, water quality and crop pollution, a water-soluble compound fertilizer anti-caking agent and its preparation method are provided

Method used

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  • Aqueous compound fertilizer anti-blocking agent and preparation method thereof

Examples

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example 1

[0024] Take the potato residue and wash it with deionized water for 3 times, put it in a drying box, dry it at 105°C to constant weight, put it into a pulverizer and grind it, pass through a 60-mesh sieve to obtain potato residue powder, take 20g of potato residue powder, Add 200mL deionized water and mix well, heat and boil for 10min, add 0.4g cellulase after cooling to room temperature, stir and react at 300r / min for 20min in a constant temperature water bath at 40°C for 10min, then add 2% sodium carbonate solution Adjust the pH to 6, transfer to a centrifuge for centrifugation, evaporate the supernatant to dryness under reduced pressure to obtain water-soluble potato residue fiber, take 4g of water-soluble potato residue fiber, add it to 80g of isopropanol, and use 300r / min Stir for 10 minutes, then add 40g of 10% sodium hydroxide solution, stir for 1 hour, add 50g of 12% chloroacetic acid isopropanol solution, heat to 55°C for 4 hours, and use 5% acetic acid solution Adjus...

example 2

[0026] Take the potato residue and wash it with deionized water for 4 times, put it in a drying box, dry it at 107°C to constant weight, put it into a pulverizer and grind it, and pass through a 60-mesh sieve to obtain potato residue powder. Take 25g of potato residue powder, Add 250mL deionized water and mix well, heat and boil for 12min, add 0.5g cellulase after cooling to room temperature, stir and react at 350r / min for 25min in a constant temperature water bath at 45°C for 13min, then add 2% sodium carbonate solution Adjust the pH to 6, transfer to a centrifuge for centrifugation, evaporate the supernatant to dryness under reduced pressure to obtain water-soluble potato residue fiber, take 5g of water-soluble potato residue fiber, add it to 100g of isopropanol, and use 350r / min Stir for 15 minutes, then add 50g of 15% sodium hydroxide solution, stir for 1 hour, add 62g of 12% chloroacetic acid isopropanol solution, heat to 57°C for 4 hours, and use 5% acetic acid solution ...

example 3

[0028]Take the potato residue and wash it with deionized water for 5 times, put it in a drying box, dry it at 110°C to constant weight, put it into a pulverizer and grind it, pass through a 60-mesh sieve to obtain potato residue powder, take 30g of potato residue powder, Add 300mL deionized water and mix evenly, heat and boil for 15min, add 0.6g cellulase after cooling to room temperature, stir and react at 400r / min for 30min in a constant temperature water bath at 50°C for 15min, then add 2% sodium carbonate solution Adjust the pH to 7, transfer to a centrifuge for centrifugation, and evaporate the supernatant to dryness under reduced pressure to obtain water-soluble potato residue fibers. Take 6g of water-soluble potato residue fibers and add them to 120g of isopropanol, at 400r / min Stir for 20 minutes, then add 60g of 20% sodium hydroxide solution, stir for 2 hours, add 75g of 12% chloroacetic acid isopropanol solution, heat to 60°C for 5 hours, and use 5% acetic acid soluti...

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Abstract

The invention relates to an aqueous compound fertilizer anti-blocking agent and a preparation method thereof and belongs to the technical field of chemical fertilizer processing. The preparation method comprises the following steps: extracting aqueous sweet potato dreg fibers after enzymolysis of sweet potato dreg; then performing carboxymethylation; constraining water diffusion by means of a lotof hydroxyl and spacial netty structures of the sweet potato dreg; and meanwhile, absorbing water better as carboxymethyl has stronger hydrogen-bond interaction than hydroxyl, and loading sodium tripolyphosphate and sulfate by taking the carboxymethyl as a vector; and greatly enhancing the water absorption by means of many pores inside, wherein surface aggregation of water of the fertilizer can beinhibited effectively, formation of crystal bridges among the fertilizer particles is prevented, molecular diffusion is prevented, adhesion of capillary tubes is reduced, and the adhesive force amongparticles is reduced; moreover, the used sodium tripolyphosphate can reduce the surface tension of the liquid on the surfaces of the particles, so that the adsorptive force of the capillary tubes isreduced to achieve the effect of preventing blockage by means of physical effects, and meanwhile, the aqueous property of the compound fertilizer can be enhanced, and the influence of water conditionon the aqueous property of the compound fertilizer can be reduced.

Description

technical field [0001] The invention relates to a water-soluble compound fertilizer anti-caking agent and a preparation method thereof, belonging to the technical field of chemical fertilizer processing. Background technique [0002] Compound fertilizer is a product that contains at least two of the three nutrients nitrogen, phosphorus, and potassium and is processed by chemical or physical methods, and its hygroscopicity is higher than that of each single component in the fertilizer. , Crystallization and chemical reactions will occur between the various component salts, making the agglomeration more obvious. For the reasons of chemical agglomeration, the main theoretical explanations include capillary bonding, crystal bridge, chemical reaction and plastic deformation theory. As for the cause of compound fertilizer caking, there is still no satisfactory explanation. Moisture, particle uniformity, particle strength, fertilizer grade, storage temperature, pressure and time,...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05B7/00C05G3/00C05G3/20C05D5/00
Inventor 谷友宝王文新史玉玲
Owner 赵建平
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