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Humic acid liquid fertilizer produced by utilizing urea dust recovery liquid and preparation method of humic acid liquid fertilizer

A technology of dust recovery and humic acid, which is applied to liquid fertilizers, urea compound fertilizers, ammonium orthophosphate fertilizers, etc., can solve the problems that the finished liquid fertilizer is easy to produce impurities, humic acid is not easy to dissolve, and is easy to produce suspended state, etc., to achieve Extend the fresh-keeping period and picking period, promote and improve photosynthesis, good economic and ecological benefits

Pending Publication Date: 2019-03-19
HENAN XINLIANXIN FERTILIZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its characteristics are mainly low production cost, high added value, fertilizer saving, water saving, labor saving, fast nutrient absorption, crop production and income increase, product quality improvement and good stress resistance effect, which are generally welcomed by users; with the green agriculture and With the rapid development of the environmental protection industry, the output and demand of humic acid liquid fertilizer are also increasing year by year, but the following defects exist in the production process of humic acid liquid fertilizer: 1. Humic acid is not easy to dissolve, and it is easy to produce a suspended state. It is not conducive to the absorption of crops in the later stage; 2. Too many materials to be dissolved cause the dissolution time to be too long; 3. The finished liquid fertilizer is easy to produce impurities
[0003] In addition, the urea melt will produce a large amount of dust-containing urea gas during the granulation process of the prilling tower, and the urea dust recovery liquid is obtained by processing it. Since the color of the recovered liquid is black, recycling and returning to the system will not only affect the appearance of the product , and will cause product quality problems, and direct discharge will cause waste of resources; the applicant first filtered it by using a precision membrane filter (700 mesh), but failed to filter it, and then tested it by using ceramic balls, activated carbon and hydrogen peroxide , the technical solution has a certain effect, but the solution costs a lot

Method used

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  • Humic acid liquid fertilizer produced by utilizing urea dust recovery liquid and preparation method of humic acid liquid fertilizer
  • Humic acid liquid fertilizer produced by utilizing urea dust recovery liquid and preparation method of humic acid liquid fertilizer

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preparation example Construction

[0028] A preparation method for producing humic acid liquid fertilizer from urea dust recovery liquid, the preparation method comprising the steps of:

[0029] Step 1: Filter the urea dust recovery liquid, put the filtered filtrate into a stirrer, and heat the urea dust recovery liquid to 30-50°C during the stirring process;

[0030] Step 2: Add potassium fulvate to the urea dust recovery solution that continues to be stirred after heating, stir until the potassium fulvate is free of flocculation, perform secondary filtration, and put the filtrate after secondary filtration into the agitator in turn Add monoammonium phosphate and potassium chloride, keep stirring until the material is completely dissolved, then add potassium chloride, and keep stirring until potassium chloride is completely dissolved to make a mixed solution;

[0031] Step 3: Add zinc sulfate heptahydrate, manganese sulfate monohydrate, ferric sulfate heptahydrate and boric acid in turn to the mixed solution w...

Embodiment 1

[0035] A kind of humic acid liquid fertilizer that utilizes urea dust recovery liquid to produce, and this liquid fertilizer comprises following raw material and is made according to weight part: 60 parts of urea dust recovery liquid, 20 parts of monoammonium phosphate, 5 parts of potassium chloride and potassium fulvic acid 1 serving. The liquid fertilizer contains the following mass percentage elements N≥10%, P 2 o 5 ≥5%, K 2O≥10%; the N element is provided by urea dust recovery liquid and monoammonium phosphate, P 2 o 5 Provided by monoammonium phosphate, K 2 O is provided by potassium chloride and potassium fulvate.

[0036] A preparation method for producing humic acid liquid fertilizer from urea dust recovery liquid, the preparation method comprising the steps of:

[0037] Step 1: Filter the urea dust recovery solution, put the filtered filtrate into a stirrer, and heat the urea dust recovery solution to 30°C during the stirring process;

[0038] Step 2: Add potas...

Embodiment 2

[0041] A kind of humic acid liquid fertilizer that utilizes urea dust recovery liquid to produce, and this liquid fertilizer comprises following raw material and is made according to weight part: 90 parts of urea dust recovery liquid, 5 parts of monoammonium phosphate, 15 parts of potassium chloride and potassium fulvic acid 10 servings. The liquid fertilizer contains the following mass percentage elements N≥10%, P 2 o 5 ≥5%, K 2 O≥10%; the N element is provided by urea dust recovery liquid and monoammonium phosphate, P 2 o 5 Provided by monoammonium phosphate, K 2 O is provided by potassium chloride and potassium fulvate.

[0042] A preparation method for producing humic acid liquid fertilizer from urea dust recovery liquid, the preparation method comprising the steps of:

[0043] Step 1: Filter the urea dust recovery solution, put the filtered filtrate into a stirrer, and heat the urea dust recovery solution to 50°C during the stirring process;

[0044] Step 2: Add po...

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Abstract

The invention belongs to a humic acid liquid fertilizer produced by utilizing urea dust recovery liquid and a preparation method of the humic acid liquid fertilizer. The liquid fertilizer is preparedfrom the following raw materials in parts by weight: 60-90 parts of urea dust recovery liquid, 5-20 parts of monoammonium phosphate, 5-15 parts of potassium chloride and 1-10 parts of potassium fulvicacid. The humic acid liquid fertilizer has the advantages that the various raw materials can be rapidly and completely dissolved, the finished product preparation time is saved, the fertilizer is easily rapidly absorbed by crops, and the urea dust recovery liquid is effectively utilized.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a humic acid liquid fertilizer produced by using urea dust recovery liquid and a preparation method for economic crops. Background technique [0002] Humic acid liquid fertilizer refers to the liquid fertilizer made of humic acid in the proportion suitable for plant growth, adding appropriate amount of nitrogen, phosphorus, potassium macroelements or zinc, boron, iron and other trace elements. After dilution, the humic acid liquid fertilizer is used for irrigation and fertilization, soilless cultivation, soaking seeds and roots, etc. Its characteristics are mainly low production cost, high added value, fertilizer saving, water saving, labor saving, fast nutrient absorption, crop production and income increase, product quality improvement and good stress resistance effect, which are generally welcomed by users; with the green agriculture and With the rapid develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
CPCC05B7/00C05G3/80C05G5/23C05C9/00C05D1/02C05D9/02C05F11/02
Inventor 任孟伟王攀杨星波高继光李红明梁斐庞伟玲袁红玲宋仁委李花苗
Owner HENAN XINLIANXIN FERTILIZER
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