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Dry powder type organic compound fertilizer pelletizing adhesive and its preparing method

A compound fertilizer and binder technology, applied in fertilizer forms, fertilization devices, fertilizer mixtures, etc., can solve the problems of high-granularity organic compound fertilizers, inability to produce oxygen content, adverse effects on crop growth, etc. Increased effectiveness, easy storage and transportation, flexible additions to effects

Inactive Publication Date: 2007-02-07
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem in the production of organic compound fertilizers is granulation. Only granular fertilizers are conducive to mechanized fertilization, but if you want to make round granules, you must add a binder
In the past, the binder used for the granulation of organic compound fertilizers was mainly made of inorganic clay minerals or organically synthesized high polymers. Granular organic compound fertilizer with high return rate
The latter has high cost and is not easy to degrade, and is easy to remain in the soil environment, which will adversely affect the growth of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、1

[0048] Embodiment 1, Preparation of 1 ton of dry powder type organic compound fertilizer granulation binder

[0049] The organic compound fertilizer granulation binder of the present embodiment contains starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and silicon with a weight fraction ratio of 100:4:6:1:4:4:5. Sodium acid. Concrete preparation process comprises the following steps:

[0050] 1. Prepare materials

[0051] Weigh the raw materials according to the above weight fraction ratio. Sodium hydroxide is prepared into a 40% aqueous solution; borax is prepared into a 20% aqueous solution with hot water; after urea is prepared into a 40% aqueous solution, sodium silicate is dissolved in and mixed to make a mixed solution; Iron formulated as a 20% aqueous solution.

[0052] 2. Mixing

[0053] Put the weighed starch in the reactor, turn on the agitator, spray the sodium hydroxide solution evenly with a sprayer, and the whole operation is complete...

Embodiment 2、1

[0067] Embodiment 2, Preparation of 1 ton of dry powder type organic compound fertilizer granulation binder

[0068] The organic compound fertilizer granulation binder of the present embodiment comprises starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and silicon with a weight fraction ratio of 150:5:10:1.5:8:6:6. Sodium acid. Concrete preparation process comprises the following steps:

[0069] 1. Prepare materials

[0070] Weigh the raw materials according to the above weight fraction ratio. Sodium hydroxide is prepared into a 40% aqueous solution; borax is prepared into a 20% aqueous solution with hot water; after urea is prepared into a 40% aqueous solution, sodium silicate is dissolved in and mixed to make a mixed solution; Iron formulated as a 20% aqueous solution.

[0071] 2. Mixing

[0072] Put the weighed starch in the reactor, turn on the agitator, spray the sodium hydroxide solution evenly with a sprayer, and the whole operation is comp...

Embodiment 3、1

[0086] Example 3, Preparation of 1 ton of dry powder type organic compound fertilizer granulation binder

[0087] The organic compound fertilizer granulation binder of the present embodiment contains starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and silicon with a weight fraction ratio of 200:6:12:2:8:6:4. Sodium acid. Concrete preparation process comprises the following steps:

[0088] 1. Prepare materials

[0089] Weigh the raw materials according to the above weight fraction ratio. Sodium hydroxide is prepared into a 40% aqueous solution; borax is prepared into a 20% aqueous solution with hot water; after urea is prepared into a 40% aqueous solution, sodium silicate is dissolved in and mixed to make a mixed solution; Iron formulated as a 20% aqueous solution.

[0090] 2. Mixing

[0091] Put the weighed starch in the reactor, turn on the agitator, spray the sodium hydroxide solution evenly with a sprayer, and the whole operation is completed ...

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Abstract

The present invention provides a dry powder type adhesive for pelletizing organic compound fertilizer and its preparation process. The adhesive has material comprising starch 100-200 weight portions, hydrogen peroxide solution 2-6 weight portions, strong alkali 6-12 weight portions, iron salt 1-3 weight portions, borax 4-10 weight portions, urea 2-6 weight portions and sodium silicate 4-6 weight portions. The preparation process includes the following steps: preparing materials; spraying strong alkali solution into starch and stirring; spraying hydrogen peroxide solution and iron salt solution to the mixture and adding borax to the mixture; spraying urea and sodium silicate to the mixture while stirring; reacting the mixture at 60-80 deg c in stove for 1.5-2.5 hr and stoving at 100-110 deg.c; crushing the mixture and 60-100 mesh sieving to obtain the dry powder type adhesive.

Description

technical field [0001] The invention relates to a dry powder binder and a preparation method thereof, in particular to a dry powder binder for organic compound fertilizer granulation and a preparation method thereof. Background technique [0002] The production of compound fertilizer is an important symbol of technological progress in the chemical fertilizer industry, and it is also one of the necessary measures to realize agricultural modernization. The biggest problem in the production of organic compound fertilizers is granulation. Only granular fertilizers are conducive to mechanized fertilization, but if you want to make round granules, you must add a binder. In the past, the binder used for the granulation of organic compound fertilizers was mainly made of inorganic clay minerals or organically synthesized high polymers. Granular organic compound fertilizer with high return rate. The latter has a high cost and is not easy to degrade, and is easy to remain in the soil...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G5/00
Inventor 李国学李彦明王雪秦莉王丽莉
Owner CHINA AGRI UNIV
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