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Ammonium polyphosphate compound fertilizer and preparation method thereof

An ammonium polyphosphate and compound fertilizer technology, applied in the directions of ammonium nitrate fertilizer, urea compound fertilizer, nitrate fertilizer, etc., can solve the problems of difficult crop absorption, high fertilizer cost, poor stability, etc., so as to improve its own stress resistance, The effect of high fertilizer efficiency and low cost

Inactive Publication Date: 2016-03-30
GUIZHOU RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide an ammonium polyphosphate compound fertilizer and its preparation method to solve the problems of high fertilizer cost, not easily absorbed by crops, poor stability, high residue, and polluted soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0022] Formula: 300 parts of ammonium polyphosphate, 150 parts of nitrogen solution, 14 parts of urea, 50 parts of potassium chloride, 20 parts of medium element fertilizer, 4 parts of trace element fertilizer, 10 parts of amino acid, 10 parts of humic acid, 5 parts of vitamins , 8 sugar alcohols.

[0023] Preparation:

[0024] a. Preparation of aqueous solution: dissolve ammonium polyphosphate in water, and control the temperature to be 50°C to obtain an aqueous solution of ammonium polyphosphate;

[0025] b. Mixing: add nitrogen solution, urea, potassium chloride, medium element fertilizer, trace element fertilizer, amino acid, humic acid, vitamin, sugar alcohol to the ammonium polyphosphate aqueous solution successively, and the temperature is controlled to be 30°C, and stirred for 15min;

[0026] c. Finished product: After the reaction is completed, the finished product of ammonium polyphosphate compound fertilizer is obtained by drying and granulation.

experiment example 2

[0028] Formula: 400 parts of ammonium polyphosphate, 200 parts of nitrogen solution, 20 parts of urea, 80 parts of potassium chloride, 40 parts of medium element fertilizer, 10 parts of trace element fertilizer, 16 parts of amino acids, 16 parts of humic acid, 11 parts of vitamins, 14 parts of sugar alcohol.

[0029] Preparation:

[0030] a. Preparation of aqueous solution: put ammonium polyphosphate into water to dissolve, and control the temperature to be 60 °C to obtain an aqueous solution of ammonium polyphosphate;

[0031] b. Mixing: nitrogen solution, urea, potassium chloride, medium element fertilizer, trace element fertilizer, amino acid, humic acid, vitamin, sugar alcohol are added successively to the ammonium polyphosphate aqueous solution, and the temperature is controlled to be 35°C, and stirred for 20min;

[0032] c. Finished product: After the reaction is completed, the finished product of ammonium polyphosphate compound fertilizer is obtained by drying and gran...

Embodiment 3

[0034] Formula: 325 parts of ammonium polyphosphate, 165 parts of nitrogen solution, 16 parts of urea, 60 parts of potassium chloride, 25 parts of medium element fertilizer, 6 parts of trace element fertilizer, 12 parts of amino acid, 12 parts of humic acid, 7 parts of vitamins, 10 parts of sugar alcohol.

[0035] Preparation:

[0036] a. Preparation of aqueous solution: dissolve ammonium polyphosphate in water, and control the temperature to be 50°C to obtain an aqueous solution of ammonium polyphosphate;

[0037] b. Mixing: add nitrogen solution, urea, potassium chloride, medium element fertilizer, trace element fertilizer, amino acid, humic acid, vitamin, sugar alcohol to the ammonium polyphosphate aqueous solution successively, and the temperature is controlled to be 30°C, and stirred for 15min;

[0038] c. Finished product: After the reaction is completed, the finished product of ammonium polyphosphate compound fertilizer is obtained by drying and granulation.

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Abstract

The invention discloses an ammonium polyphosphate compound fertilizer and a preparation method thereof. The ammonium polyphosphate compound fertilizer is prepared from the following raw materials in parts by weight: 300-400 parts of ammonium polyphosphate, 150-200 parts of nitrogen solution, 14-20 parts of urea, 50-80 parts of potassium chloride, 20-40 parts of a secondary element fertilizer, 4-10 parts of a microelement fertilizer, 10-16 parts of amino acid, 10-16 parts of humic acid, 5-11 parts of vitamins and 8-14 parts of alditol. The preparation method comprises: preparation an aqueous solution, and performing mixingtoobtain a finished product. The compound fertilizer has the characteristics of high fertilizer effect, quick absorption, sufficient nutrient and the like, not only can promote photosynthesis of crops, adjust air holes and promote disease inhibition but also can stimulate the growth of the crops, promote root development, reduce the opening degree of leaf air holes and reduce water transpiration when applied to planting of the crops, and has the functions of increasing drought resistance of plants, stimulating the growth of the crops, improving self resistance of the crops, and the like; moreover, the preparation method of the compound fertilizer is simple, is low in cost, and can realize large-batch production.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to an ammonium polyphosphate compound fertilizer and a preparation method thereof. Background technique [0002] Ammonium polyphosphate is a polyphosphate containing N and P. According to its degree of polymerization, it can be divided into three types: oligomerization, medium polymerization and high polymerization. The higher the degree of polymerization, the lower the water solubility, and vice versa. According to its structure, it can be divided into crystalline and amorphous. Crystalline ammonium polyphosphate is a long-chain water-insoluble salt. Now ammonium polyphosphate has gradually entered the production of compound fertilizer and liquid fertilizer, especially in developed countries, it has been widely used. In the early 1970s, the United States concentrated wet-process phosphoric acid into superphosphoric acid, which reacted with ammonia in a tubular reacto...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B17/00C05G3/00C05G3/80C05C1/00C05C5/00C05C5/04C05C9/00C05C11/00C05D1/02C05D5/00C05D9/02C05F11/02C05F11/10
Inventor 田娟杨杰周昌平陈思帆陈文兴王瑶
Owner GUIZHOU RES INST OF CHEM IND
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