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Method for preparing organic titanium-organic ammonium salt organic fertilizer by salting-out process

A technology of organic ammonium salt and organic fertilizer, applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve the problems of miscellaneous belts, etc., and achieve the effect of strong chelating ability, stable performance and high content

Inactive Publication Date: 2012-07-11
福建超大现代农业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Above patent document discloses directly the chloride of water-soluble titanium, or the sulfate salt of titanium as the raw material of synthetic organic titanium citric acid chelate compound, the weak point of its existence is that in the organic titanium citric acid chelate synthesized Miscellaneous with a large number of chloride ions or sulfide ions
[0022] There is no report on using alkaline (pH ≥ 8) organic ammonium salts as salt precipitation neutralizers to neutralize salt precipitation to prepare organic titanium-organic ammonium salt composite functional fertilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) Preparation of metatitanic acid:

[0058] a. Add 1000ml of ice water at 0°C~5°C to a 1500ml beaker, and add 10ml of hydrochloric acid and 20ml of titanium tetrachloride dropwise under the stirring of an electric stirrer to generate a titanium tetrachloride hydrochloric acid solution. The sodium hydroxide solution neutralizes the titanium tetrachloride hydrochloric acid solution, the temperature of the solution is controlled at ≤5°C, and the pH value is 7.0~8.0, so that metatitanic acid is precipitated in cold water at ≤5°C;

[0059] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0060] c. After the metatitanic acid that has been washed to remove chloride ions is removed by a centrifuge to remove part of the adsorbed water, it can be used for acid-soluble chelation.

[0061] (2) Preparation of titanium citrate chelate:

[0062] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0063] The tita...

Embodiment 2

[0074] (1) Preparation of metatitanic acid:

[0075] a. Add 1000ml of ice water at 0°C~5°C to a 1500ml beaker, and add 10ml of hydrochloric acid and 20ml of titanium tetrachloride dropwise under the stirring of an electric stirrer to generate a titanium tetrachloride hydrochloric acid solution. The sodium hydroxide solution neutralizes the titanium tetrachloride hydrochloric acid solution, the temperature of the solution is controlled at ≤5°C, and the pH value is 7.0~8.0, so that metatitanic acid is precipitated in cold water at ≤5°C;

[0076] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0077] c. After the metatitanic acid that has been washed to remove chloride ions is removed by a centrifuge to remove part of the adsorbed water, it can be used for acid-soluble chelation.

[0078] (2) Preparation of titanium citrate chelate:

[0079] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0080] The tita...

Embodiment 3

[0091] (1) Preparation of metatitanic acid:

[0092] a. Add 1000ml of ice water at 0°C~5°C to a 1500ml beaker, and add 10ml of hydrochloric acid and 20ml of titanium tetrachloride dropwise under the stirring of an electric stirrer to generate a titanium tetrachloride hydrochloric acid solution. The sodium hydroxide solution neutralizes the titanium tetrachloride hydrochloric acid solution, the temperature of the solution is controlled at ≤5°C, and the pH value is 7.0~8.0, so that metatitanic acid is precipitated in cold water at ≤5°C;

[0093] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0094] c. After the metatitanic acid that has been washed to remove chloride ions is removed by a centrifuge to remove part of the adsorbed water, it can be used for acid-soluble chelation.

[0095] (2) Preparation of titanium citrate chelate:

[0096] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0097] The tita...

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Abstract

The invention relates to a method for preparing organic titanium-organic ammonium salt organic fertilizer by a salting-out process. The method is characterized in that: new metatitanic acid precipitate is prepared by neutralizing an iced solution of titanium salt by using alkali; the new metatitanic acid precipitate instead of titanium chloride and sulfate is used as raw materials for synthesizing citricacide-titatnium chelate; citricacide-titatnium chelate is synthesized by a microwave hot melting chelation process by using the new metatitanic acid precipitate as a titanium source and citricacid as an acid solvent and chelant; and the organic titanium-organic ammonium salt compound functional organic fertilizer is prepared by neutralizing a saturated solution of citricacide-titatnium chelate by using ammonium carbonate powder, and salting out. The synthesized organic titanium does not contain chlorine and sulfur ions completely. The citric acid has high capacity of chelating metal ions, and is stable in performance and high in activity; organic acid obtained by reacting citric acid, ammonium carbonate and ammonium hydroxide has high content and activity; and the organic titanium-organic ammonium salt compound organic fertilizer is powder, high in stability and water-solubility, and is convenient to store, convey and use.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for manufacturing functional organic fertilizers composed of organic titanium and organic ammonium salts. Background technique [0002] Fertilizer is a strategic material to ensure national food security, and the material basis for maintaining and improving soil fertility to achieve sustainable agricultural development. [0003] Chemical fertilizers are still an important means of production in agricultural production at present, and the absorption and utilization rate of chemical fertilizers in the soil by plants is very low. According to the measurement of my country's current comprehensive agricultural science and technology level, the utilization rate of agricultural crop fertilization in my country is only about 30%, causing a large number of Fertilizer loss and waste and environmental pollution. [0004] The research and development of new fertilize...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 徐福乐翁莹冰张美娟林秀翁仁发
Owner 福建超大现代农业集团有限公司
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