Balanced macroelement clear liquid fertilizer

A high-element, balanced technology, used in liquid fertilizers, urea compound fertilizers, nitrogen fertilizers, etc., can solve problems such as high production costs, unstable long-term storage, flatulence, etc.

Inactive Publication Date: 2019-04-16
SINOCHEM AGRI LINYI R&D CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different liquid fertilizer formulas need to use different nitrogen, phosphorus and potassium raw materials. In the actual production and application process, clear liquid fertilizer products are particularly prone to problems such as crystallization, flatulence, and long-term storage instability, especially balanced clear liquid fertilizers containing a large number of elements (such as 170-170-170+TE and 180-180-180+TE and other specifications of fertilizers), in cold regions or cold seasons, due to the solubility of nitrogen fertilizers and potassium fertilizers in the formula composition, the product will crystallize, affecting production and use , and the production cost is higher
[0004] Therefore, the research on clear liquid fertilizer needs to be deepened

Method used

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  • Balanced macroelement clear liquid fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0047] The balanced type macroelement clear liquid fertilizer containing urea-formaldehyde nitrogen solution, by weight: 45.3 parts of urea-formaldehyde nitrogen solution with nitrogen content of 32%, 23.6 parts of 85% thermal phosphoric acid, 18.1 parts of 95% industrial grade potassium hydroxide, four 0.45 parts of sodium octaborate in water, 0.35 parts of EDTA-Zn, appropriate amount of stabilizer, make up to 100 parts of water, and prepare 200-200-200+TE clear liquid fertilizer.

[0048] Preparation steps of clear liquid fertilizer:

[0049] 1) Weigh 12 parts of water, put it into the reaction kettle, put 18.1 parts of 95% industrial grade potassium hydroxide in batches under stirring condition, and control the solution temperature to ≤60°C;

[0050] 2) Continue to drop 45.3 parts of 32% urea-formaldehyde nitrogen solution into the kettle, and stir evenly;

[0051] 3) Continue to put 23.6 parts of 85% thermal phosphoric acid into the kettle, add in batches, and control the...

Embodiment 2

[0056]The balanced macroelement clear liquid fertilizer containing urea-formaldehyde nitrogen solution, by weight parts: nitrogen content is 46.3 parts of urea-formaldehyde nitrogen solution of 30%, 16.2 parts of 99% industrial grade phosphorous acid, 17.4 parts of 95% industrial grade potassium hydroxide, 0.45 parts of sodium octaborate tetrahydrate, 0.35 parts of EDTA-Zn, appropriate amount of stabilizer, water to make up to 100 parts, and prepare 190-190-190+TE clear liquid fertilizer.

[0057] Preparation steps of clear liquid fertilizer:

[0058] 1) Weigh 18 parts of water, put it into the reaction kettle, put 17.4 parts of 95% industrial grade potassium hydroxide in batches under stirring condition, and control the solution temperature to ≤60°C;

[0059] 2) Continue to drop 46.3 parts of 30% urea-formaldehyde nitrogen solution into the kettle, and stir evenly;

[0060] 3) Continue to put 16.2 parts of 99% industrial-grade phosphorous acid into the kettle, add in batches...

Embodiment 3

[0065] Balanced macroelement clear liquid fertilizer containing urea-formaldehyde nitrogen solution, in parts by weight: 30.7 parts of urea-formaldehyde nitrogen solution with a nitrogen content of 28%, 10 parts of urea, 25.4 parts of potassium dihydrogen phosphate, 5.7 parts of 95% industrial grade potassium hydroxide 10 parts of formic acid, 0.5 parts of γ-polyglutamic acid, 0.45 parts of sodium octaborate tetrahydrate, 0.35 parts of EDTA-Zn, appropriate amount of stabilizer, and make up to 100 parts of water to prepare 180-180-180+TE clear liquid fertilizer.

[0066] Preparation steps of clear liquid fertilizer:

[0067] 1) Weigh 17 parts of water, put it into the reaction kettle, put 5.7 parts of 95% industrial grade potassium hydroxide in batches under stirring condition, and control the solution temperature to ≤60°C;

[0068] 2) Continue to put 30.7 parts of 28% urea-formaldehyde nitrogen solution and 10 parts of urea into the kettle, and stir until it dissolves evenly; ...

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Abstract

The invention provides a balanced macroelement clear liquid fertilizer and a preparation method thereof. The clear liquid fertilizer comprises a urea-formaldehyde nitrogen solution, a water-soluble phosphate fertilizer and a water-soluble potassic fertilizer, wherein the urea-formaldehyde nitrogen solution comprises urea, methylol urea, methylene urea and triazinone compounds. Therefore, the urea-formaldehyde nitrogen solution is taken as a basic nitrogen fertilizer raw material to be mixed with the water-soluble phosphate fertilizer and the water-soluble potassic fertilizer so as to obtain the clear liquid fertilizer containing macroelements, wherein the methylol urea, methylene urea and triazinone compounds in the clear liquid fertilizer can stably provide sustained-release nitrogen after being absorbed by plants, thereby increasing the utilization rate of a nitrogen fertilizer and enhancing the fertilizer efficiency; the crystallization temperature of the clear liquid fertilizer canbe as low as 10 DEG C or even as low as 30 DEG C or below, thereby further expanding the safe application area of the clear liquid fertilizer; the preparation cost is lower, and the cost performanceis high; the long-term storage stability is good, and precipitates do not appear easily.

Description

technical field [0001] The invention relates to the technical field of chemical fertilizers, in particular to a balanced macroelement clear liquid fertilizer. Background technique [0002] Liquid fertilizer, also known as fluid fertilizer, can be divided into clear liquid type and suspension type according to the physical appearance of the product. It has the characteristics of saving labor, time, water and increasing production. It is suitable for drip irrigation, sprinkler irrigation and foliar spraying, etc. , In the past 30 years, traditional solid fertilizers have been increasingly replaced by compound liquid fertilizers in the world. [0003] The production of clear liquid fertilizer has high requirements for raw materials, high nutrient content, low impurities, low water insoluble matter, etc. In formula design and production, it is necessary to comprehensively consider nutrient form, raw material price, solubility, safety and process Wait. Commonly used nitrogen fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05B7/00C05B17/00C05G3/00C05G5/20C05C9/00C05C11/00C05D1/00C05D9/02C05C9/02
Inventor 任先顺秦跃军魏延青王子浩
Owner SINOCHEM AGRI LINYI R&D CENT CO LTD
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