Production method of multielement microelement amino acid chelating fertilizer

A technology of trace elements and production methods, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of soil environmental pollution, lack of fertilizer efficiency, low chelation efficiency, etc., to reduce pollution, easily biodegradable, and chelating powerful effect

Inactive Publication Date: 2015-07-22
SINOFERT HOLDINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is easy to operate and low in cost, but there is no chelation reaction in the production process, but the chelation is performed after dissolving in the soil, which will inevitably lead to low chelation efficiency, and the EDTA system The chelating agent itself has no fertilizer effect and is difficult to degrade. It is easy to cause soil environmental pollution and cause certain damage to the environment. In addition, it is expensive, so there are certain limitations in application.
In other literatures, there is no announcement of the method of preparing fertilizers with trace element chelates and macroelement compound fertilizers

Method used

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  • Production method of multielement microelement amino acid chelating fertilizer
  • Production method of multielement microelement amino acid chelating fertilizer
  • Production method of multielement microelement amino acid chelating fertilizer

Examples

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Effect test

Embodiment 1

[0025] Such as figure 1 Shown, a kind of production method of multivariate trace element amino acid chelate fertilizer comprises the following steps:

[0026] (1) For the trace elements iron, manganese, zinc, and copper, in different reaction kettles, add the process water and the sulfate of the trace elements in proportion, slowly add the corresponding amount of sodium polyaspartate, and dissolve completely Finally, use dilute sulfuric acid and ammonia water to adjust to the desired pH value, raise the temperature to 70°C, and react for 1 hour at a speed of 500r / min to obtain polyaspartic acid chelated ferrous, polyaspartic acid chelated manganese, Polyaspartic acid chelated zinc, polyaspartic acid chelated copper, wherein the sulfate that iron adopts is ferrous sulfate heptahydrate, and the mass ratio of polyaspartic acid sodium, process water, ferrous sulfate heptahydrate is 1:1.5:2.05, pH=4.5 required for reaction; The sulfate salt that manganese adopts is manganese sulfa...

Embodiment 2

[0041] Such as figure 1 Shown, a kind of production method of multivariate trace element amino acid chelate fertilizer comprises the following steps:

[0042] (1) For trace elements manganese, zinc, copper, respectively in different reactors, add process water and the sulfate of this trace element in proportion, slowly add the corresponding amount of sodium polyaspartate, after dissolving completely, Use dilute sulfuric acid and ammonia water to adjust to the desired pH value, raise the temperature to 70°C, and react for 1 hour at a speed of 500r / min to prepare polyaspartic acid chelated manganese, polyaspartic acid chelated zinc, and polyaspartic acid Amino acid chelated copper, wherein the sulfate used for manganese is manganese sulfate monohydrate, the mass ratio of sodium polyaspartate, process water, and manganese sulfate monohydrate is 1:2:1.2, and the required pH=5.5 for the reaction; The sulfate that adopts is zinc sulfate heptahydrate respectively, and the mass ratio...

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Abstract

The invention discloses a production method of a multielement microelement amino acid chelating fertilizer and relates to the manufacturing of fertilizers for agriculture, particularly a preparation method of a common microelement chelating fertilizer for crops. By using sodium polyaspartate as a chelating agent, the microelement chelates and a macroelement fertilizer are combined to produce the fertilizer. The obtained fertilizer is applied to soil and dissolved, and the microelements are driven by the osmotic pressure caused by absorption of the macroelements to be close to the root system, so that the absorption efficiency is remarkably improved; in addition, the different microelement chelates are respectively synthesized in different reaction kettles and controlled by using a flowmeter and added to the fertilizer according to the required proportion, so that the flexibility of the microelement formula is guaranteed to be suitable for different requirements of different crops in different regions. According to the production method disclosed by the invention, different microelement chelates mixed in a buffer tank enter into a compound fertilizer granulating device through an atomizing distributor so as to ensure that the different microelements and the microelements and macroelements are uniformly mixed, so that the fertilizer application effect is guaranteed.

Description

technical field [0001] The invention relates to the manufacture of agricultural fertilizers, in particular to a method for preparing chelate fertilizers of trace elements commonly used in crops. Background technique [0002] With the increase of agricultural output, the application of chemical fertilizers has been increasing. For a long time, there has been a common phenomenon in my country that attaches great importance to macronutrients and despises microelements, which leads to the low content of microelements in the soil, which cannot meet the needs of crop growth, and also affects the absorption efficiency of macronutrient fertilizers. In recent years, trace element fertilizers have received special attention, and how to promote the absorption of trace elements by crops has become an important issue in the fertilizer industry. Several major metal trace elements, such as iron, zinc, manganese, copper, etc., in the soil with a pH value greater than 6, easily form precipi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李维昆施刘砚应敏杰
Owner SINOFERT HOLDINGS
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