Acid hydrolysis method for preparing nitrogen, phosphorus and potassium-containing small-molecule organic matter liquid fertilizer

An organic matter, nitrogen, phosphorus and potassium technology, which is applied in the field of small molecular organic matter liquid fertilizer, can solve the problems of neglecting the supply of nitrogen, phosphorus and potassium elements, unstable properties of organic matter, and difficulty in fully meeting the nutritional needs of plants, so as to provide utilization and reduce nitrogen. Effects of volatilization and phosphorus fixation and potassium leaching and easy entry into plants

Active Publication Date: 2016-02-17
SHENZHEN BATIAN ECOTYPIC ENG
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can crack large organic compounds into small molecular organic compounds, the process uses a single acid for acid hydrolysis, and the acid hydrolysis and oxidation are carried out in the same period of time, and the properties of the obtained organic substances are not stable. Condensation reaction will occur. Although the utilization rate of macromolecular organic wastewater is higher than that of the original macromolecular organic wastewater, it is not the most easily absorbed and utilized substance by plants.
[0004] In addition, the simple use of organic waste water to produce small molecular organic compounds as fertilizers can meet the carbon demand of plants, but it ignores the supply of nitrogen, phosphorus and potassium, and it is difficult to fully meet the nutritional needs of plants.

Method used

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  • Acid hydrolysis method for preparing nitrogen, phosphorus and potassium-containing small-molecule organic matter liquid fertilizer
  • Acid hydrolysis method for preparing nitrogen, phosphorus and potassium-containing small-molecule organic matter liquid fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0027] An acid hydrolysis method is used to prepare small-molecule organic liquid fertilizer containing nitrogen, phosphorus and potassium. The raw material formula is: 100 kg of organic waste water, 15 kg of compound acid solution, 25 kg of nitrogen and phosphorus raw materials, and 20 kg of potassium raw materials.

[0028] The specific method for preparing the small molecular organic liquid fertilizer containing nitrogen, phosphorus and potassium by the acidolysis method is: use the waste water produced by fermentation as the raw material, inject it into the reactor and stir it according to the rotating speed of 300r / min, and then inject 5kg with a mass concentration of 85% Nitric acid and 10 kg of sulfuric acid mixed solution with a mass concentration of 95% are hydrolyzed, the reaction temperature is 40-60° C., and the reaction time is 40 minutes. Then add 10kg of monoammonium phosphate and diammonium phosphate and 15kg of potassium peroxide to react, and continue to react...

Embodiment 2

[0030] A small molecular organic liquid fertilizer containing nitrogen, phosphorus and potassium is prepared by an acidolysis method. The raw material formula is: 100 kg of organic waste water, 18 kg of compound acid solution, 22 kg of nitrogen and phosphorus raw materials, and 30 kg of potassium raw materials.

[0031] The specific method for preparing the small molecular organic liquid fertilizer containing nitrogen, phosphorus and potassium by the acidolysis method is as follows: use the waste water produced by yeast as raw material, inject it into the reactor and stir it according to the rotating speed of 200r / min, and then inject 8 kg of 35% fermented fertilizer with a mass concentration of 35%. Hydrochloric acid and 10 kg of sulfuric acid mixed solution with a mass concentration of 95% are hydrolyzed, the reaction temperature is 40-60° C., and the reaction time is 30 minutes. Then add 10kg of diammonium phosphate and 12kg of potassium sulfide to react, and continue to rea...

Embodiment 3

[0033] A small molecular organic liquid fertilizer containing nitrogen, phosphorus and potassium is prepared by an acidolysis method. The raw material formula is: 100kg of organic waste water at 50% to 80%, 12kg of compound acid solution, 20kg of nitrogen and phosphorus raw materials, and 30kg of potassium raw materials.

[0034] The specific method for preparing the small molecular organic liquid fertilizer containing nitrogen, phosphorus and potassium by the acidolysis method is as follows: using waste water from the production of amino acids as raw material, injecting it into the reactor for stirring at a speed of 300 r / min, and then injecting 3 kg of 35% organic fertilizer with a mass concentration of Hydrochloric acid, 4 kg of sulfuric acid with a mass concentration of 95%, and 5 kg of nitric acid with a mass concentration of 85% are hydrolyzed. The reaction temperature is 40-60° C. and the reaction time is 40 minutes. Then add diammonium phosphate and potassium persulfide...

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Abstract

The invention discloses an acid hydrolysis method for preparing nitrogen, phosphorus and potassium-containing small-molecule organic matter liquid fertilizer. The liquid fertilizer is prepared from, by mass, 50%-80% of organic wastewater, 5%-10% of a composite acid solution, 10%-20% of nitrogen and phosphorus raw materials and 5%-20% of potassium raw materials. The liquid fertilizer is prepared through the steps that the organic wastewater is taken as the raw materials, a hydrolysis reaction is firstly performed through composite acid, the nitrogen and phosphorus raw materials and the potassium raw materials are added for a reaction, centrifugal separation is performed, supernatant is taken, and then the water-soluble small-molecule organic matter liquid fertilizer is obtained. According to the acid hydrolysis method, the organic wastewater is taken as the raw materials, and through acid hydrolysis of the composite acid, oxidation of basic oxides, pH value regulation and addition of the nitrogen and phosphorus raw materials, the obtained liquid fertilizer is rich in nitrogen, phosphorus, potassium and a large amount of small-molecule organic matter and can be efficiently absorbed and utilized by plants.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to an acid hydrolysis method for preparing small molecular organic liquid fertilizers containing nitrogen, phosphorus and potassium. Background technique [0002] In the diverse fertilizer market, fertilizers can be divided into solid fertilizers, liquid fertilizers, and gas fertilizers according to their forms. In general, fertilizers that flow continuously are called liquid fertilizers. Compared with solid fertilizers, liquid fertilizers have the advantages of low production cost, less pollution in the production process, and more convenient addition of organic materials, such as amino acids, fulvic acid, etc. Therefore, the formula of liquid fertilizers is easy to adjust and convenient for precise fertilization. [0003] Generally, liquid fertilizers on the market are mostly liquid fertilizers based on unit nutrients such as liquid ammonia, ammonia water, urea ammonium nitra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 穆光远陈彬
Owner SHENZHEN BATIAN ECOTYPIC ENG
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