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Method for preparing organic titanium-potassium humate compound fertilizer by microwave hot melting process

A technology of potassium fulvic acid and organic titanium, applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of miscellaneous bands, no organic acid titanium-potassium fulvic acid compound fertilizer, etc.

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
[0027] There is no report on the preparation of organic acid titanium-potassium fulvic acid compound fertilizer by microwave hot-melt process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Preparation of metatitanic acid:

[0053] 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 to be ≤5°C, the pH value is 7.0~8.0, and the metatitanic acid is precipitated in the cold water of ≤5°C.

[0054] b. The newly precipitated metatitanic acid is washed with distilled water to remove chloride ions,

[0055] 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.

[0056] (2) Preparation of titanium citrate chelate:

[0057] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0058] The t...

Embodiment 2

[0069] (1) Preparation of metatitanic acid:

[0070] 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 to be ≤5°C, the pH value is 7.0~8.0, and the metatitanic acid is precipitated in the cold water of ≤5°C.

[0071] b. The newly precipitated metatitanic acid is washed with distilled water to remove chloride ions,

[0072] 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.

[0073] (2) Preparation of titanium citrate chelate:

[0074] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0075] The t...

Embodiment 3

[0086] (1) Preparation of metatitanic acid:

[0087] 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 to be ≤5°C, the pH value is 7.0~8.0, and the metatitanic acid is precipitated in the cold water of ≤5°C.

[0088] b. The newly precipitated metatitanic acid is washed with distilled water to remove chloride ions,

[0089] 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.

[0090] (2) Preparation of titanium citrate chelate:

[0091] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0092] The t...

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Abstract

The invention relates to a method for preparing organic titanium-potassium humate compound fertilizer by a microwave hot melting 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 which does not contain chorine and sulfur ions and can be dissolved in citric acid replaces titanium chloride and sulfate and is used as raw materials for synthesizing citricacide-titatnium chelate which does not contain chorine and sulfur ions; the citricacide-titatnium chelate is synthesized by a microwave hot melting chelation process by using the new metatitanic acid precipitate which can be dissolved in the citric acid as a titanium source and citric acid as an acid solvent and chelant; citricacide-titatnium chelate-potassium citrate compound salt is prepared by neutralizing a saturated solution of citricacide-titatnium chelate by using potassium carbonate powder and salting out; and the organic titanium-potassium humate compound fertilizer is prepared by performing hot melting chelation on the citricacide-titatnium chelate-potassium citrate compound salt and potassium humate in a ratio under microwaves. The fertilizer has all the kinetic energy of organic titanium, and all the functions of humic acid, and overlays the functions of the organic titanium and the humic acid, and is a multifunctional fertilizer synergist.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for manufacturing an organic fertilizer composed of organic titanium and potassium fulvic acid. 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 fertilizers with hi...

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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