Production formula and preparation method of particle thiamine nitrogenous fertilizer

A technology for producing formula and thiamine, which is applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of immature granular thiamine nitrogen fertilizer technology, and achieve the effect of suitable strength, easy adjustment and easy operation.

Inactive Publication Date: 2012-08-01
WENGFU (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The granulation of fertilizers is increasingly favored by customers, and the market for granular thiamine nitrogen fertilizers is growing. However, the technology for producing granular thiamine nitrogen fertilizers is not mature enough. Granular or crystalline nitrogen fertilizer, made into granular thiamine nitrogen fertilizer with uniform particles and suitable nutrients, which ensures the granulation of granular thiamin nitrogen fertilizer and meets the requirements of mechanized operations

Method used

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  • Production formula and preparation method of particle thiamine nitrogenous fertilizer
  • Production formula and preparation method of particle thiamine nitrogenous fertilizer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Example 1 Preparation of granular thiamine nitrogen fertilizer with a total nitrogen content of 28% and a sulfur content of 13%

[0021] The qualified urea and ammonium sulfate will be proportioned according to product requirements, among which urea (46%) is 32%, ammonium sulfate (N: 20.5%, S: 23.48%) is 58%, and anhydrous zinc sulfate is 3%. , magnesium oxide 1%, anhydrous magnesium sulfate 2%, among which dilute sulfuric acid (60%) and synthetic ammonia are controlled according to the proportion of 2% each, and the temperature of the material in the granulator reaches 55-65°C through the acid ammonia reaction. Test to make the PH of the system between 5.8-6.2, control the liquid phase amount required by the material through medium-pressure steam, improve the ball forming rate of the material, and ensure that the semi-finished product of 1.00-4.75mm is about 60-75%. One-stage drying, one-stage sieving, two-stage drying, cooling, two-stage sieving, three-stage sieving...

example 2

[0022] Example 2 Preparation of granular thiamine nitrogen fertilizer with 32% total nitrogen content and 8% sulfur content

[0023] The steps are the same as in Example 1, wherein the proportion of urea is 46%, the proportion of ammonium sulfate is 45%, the proportion of anhydrous magnesium sulfate is 2.5%, the proportion of bentonite is 2.5%, and the proportion of dilute sulfuric acid and synthetic ammonia is respectively 2%. Get qualified granular thiamine nitrogen fertilizer products.

[0024] The following table lists the process parameters and quality details

[0025] Table 1 List of process parameters

[0026]

[0027] Table 2 List of final product quality indicators

[0028]

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Abstract

The invention discloses a production formula and a preparation method of a particle thiamine nitrogenous fertilizer. Main raw materials comprises 30-46 percent of farm-oriented urea, 25-62 percent of ammonium chloride, 5-23 percent of fillers, 0.5-2.5 percent of dilute sulphuric acid and 0.5-2.5 percent of synthesis ammonia sold on market. The fillers are selected from powdery monoammonium phosphate, powdery diammonium phosphate, anhydrous magnesium sulfate, anhydrous zinc sulfate, magnesium carbonate, magnesium oxide, calcium carbonate, attapulgite powder and bentonite. After the raw materials finish hybrid reaction, a semi-finished product is formed in a rotor drum granulator, and the particle thiamine nitrogenous fertilizer is prepared through follow-up drying, cooling, screening and packaging processes. A product prepared by the formula has high nitrogen content, lower moisture content and large strength, is convenient to transport and store, and can meet the requirement of large-scale mechanization operation.

Description

technical field [0001] The invention relates to the technical field of agricultural chemical fertilizers, in particular to a production formula of granular thiamine nitrogen fertilizer. Background technique [0002] At present, nitrogen fertilizer, one of the three major nutritional fertilizers circulating in the market, mainly includes: urea, ammonium sulfate, ammonium chloride and ammonium nitrate, etc. With the continuous improvement of farmers' awareness of fertilizer use and the continuous popularization of mechanization. The granulation of fertilizers is increasingly favored by customers, and the market for granular thiamine nitrogen fertilizers is growing. However, the technology for producing granular thiamine nitrogen fertilizers is not mature enough. Granular or crystalline nitrogen fertilizer, made into granular thiamine nitrogen fertilizer with uniform particles and suitable nutrients, which ensures the granulation of granular thiamin nitrogen fertilizer and meet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 杨喆王飞李红林何廷贵田仁道赵清
Owner WENGFU (GRP) CO LTD
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