Environmentally-friendly iminodisuccinic acid chelated metal salt

An iminodisuccinic acid, environment-friendly technology, applied in the field of chemical fertilizers and green fertilizers, can solve the problems of reducing the content of active ingredients, increasing the production process, and the corrosion effect of chloride ions, improving the utilization rate of raw materials, reducing production costs, The effect of no pollutant emission

Active Publication Date: 2019-03-08
河北协同化学有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it is produced by the metathesis reaction of sodium or potassium iminodisuccinic acid and metal salts, its compound production process will produce invalid salt components (in the form of sodium or potassium salts of inorganic or organic anions), such as sodium nitrate , Potassium nitrate, etc., these salt content reaches 30%-50%, this production method not only increases the production process, causes the production cost to increase, and these additional salts will cause the product effective content to reduce
The application of this metal chelate salt will add unnecessary salt to the soil, such as sulfate, which can easily cause soil compaction and affect crop growth; chloride ions have a corrosive effect on equipment, and are not suitable for chlorine-avoiding crops; nitrate has strong oxidation Increase the risk of storage and transportation; In addition, these invalid salts will reduce the content of active ingredients in the product, and increase the cost of packaging, transportation, and use by about 15%.

Method used

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  • Environmentally-friendly iminodisuccinic acid chelated metal salt
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Examples

Experimental program
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Effect test

preparation example Construction

[0028] The preparation method of metal chelate salt comprises the steps:

[0029] Add 0.8-1.2 molar parts of raw material A and 0.8-1.2 molar parts of raw material B into 20-25 molar parts of solvent, then slowly add 1-2 molar parts of raw material C and stir, and heat to 80-110 ℃, heating and reflux reaction under normal pressure for 25-40 hours, and cooling down to room temperature after the reaction, to prepare iminodisuccinic acid chelated metal salt.

[0030]The dissolving solvent is water, and auxiliary agents can be added when raw materials are added to the solvent, and the auxiliary agent types are any one of ammonia water, polysorbates, polyoxyethylene fatty acid esters, salicylic acid, cresol, and fatty acids. The mixture of one or more kinds promotes the dissolution of raw materials in the solvent, and the added amount of the auxiliary agent is 0.5-1.5% in mass fraction in the solvent.

Embodiment 1

[0032] An environment-friendly iminodisuccinic acid chelated metal salt, comprising the product of raw material A, raw material B and raw material C reaction, raw material A is maleic acid, raw material B is L-aspartic acid, raw material C is copper hydroxide.

[0033] The preparation method of metal chelate salt comprises the steps:

[0034] The raw material A of 0.8 molar part, the raw material B of 0.8 molar part are added in the water of 20 molar parts, then add ammoniacal liquor, the add-on of ammoniacal liquor is 0.5% of the mass fraction of water, then slowly add the copper hydroxide of 1 molar part and Stir, heat to 80°C after the raw materials are completely dissolved, heat and reflux under normal pressure for 25 hours, cool down to room temperature after the reaction, and prepare iminodisuccinic acid chelated metal salt.

[0035] The content of iminodisuccinic acid in the chelated metal salt of iminodisuccinic acid is 70%, and the content of copper ions is 15%.

[...

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Abstract

The invention discloses an environmentally-friendly iminodisuccinic acid chelated metal salt, particularly relates to a metal chelated salt, and belongs to the field of green chemical fertilizer. Theenvironmentally-friendly iminodisuccinic acid chelated metal salt comprises a raw material A, a raw material B and a raw material C, wherein the raw material A is any one of or a mixture of compoundssubjected to alkaline hydrolysis to obtain butylene diacid; the raw material B is any one of or a mixture of compounds subjected to alkaline hydrolysis to obtain aspartic acid roots; and the raw material C is any one of or a mixture of elementary substances or compounds reacting with acids to generate metal cations. The production process disclosed by the invention is simple and synthesizes the environmentally-friendly iminodisuccinic acid chelated metal salt by one step without secondary compounding; the content of active components is high, and no inactive components such as nitrate, sulfate, chloride and carbonate are contained; and the environmentally-friendly iminodisuccinic acid chelated metal salt belongs to an environmentally-friendly preparation process, can avoid hardening of soil and reduces the packaging, transporting and using cost.

Description

technical field [0001] The invention relates to chemical fertilizers, in particular to a metal chelate salt, which belongs to the field of green chemical fertilizers and is used for supplementing metal trace elements to crops or soil. Background technique [0002] There are about 16 kinds of essential elements required for plant growth and development, among which the major elements are carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, the middle elements are calcium, magnesium, sulfur, and 7 kinds of trace elements are iron, zinc, Manganese, Copper, Boron, Molybdenum, Chlorine. With the development of modern science, the application of chemical fertilizers has made a great contribution to the increase of agricultural production, which has greatly increased the output of agricultural products per unit area. However, the unbalanced fertilization has also led to some crises in modern agriculture, which has a negative impact on environmental resources and human health....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C227/00C07C227/04C07C229/76C05F11/00C05G3/80
CPCC05F11/00C07C227/00C07C227/04C07C229/76
Inventor 唐量李文曦
Owner 河北协同化学有限公司
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