Method for preparing trace element fertilizer containing organic titanium through microwave chelating process

A technology of trace element fertilizer and organic titanium, which is applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve the problems of miscellaneous belts, etc., and achieve the effects of improving yield and quality, promoting absorption and operation, and promoting crop growth

Inactive Publication Date: 2012-07-11
FUJIAN CHAODA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] 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 Mis...

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 at ≤5°C, and the pH value is 7.0~8.0, so that metatitanic acid is precipitated in cold water at ≤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 ti...

Embodiment 2

[0066] (1) Preparation of metatitanic acid:

[0067] 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;

[0068] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0069] 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.

[0070] (2) Preparation of titanium citrate chelate:

[0071] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0072] The ti...

Embodiment 3

[0082] (1) Preparation of metatitanic acid:

[0083] 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;

[0084] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0085] 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.

[0086] (2) Preparation of titanium citrate chelate:

[0087] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0088] The ti...

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Abstract

The invention relates to a method for preparing a trace element fertilizer containing organic titanium through a microwave chelating process. The method is characterized by comprising the following steps of: preparing a newly precipitated metatitanic acid which does not contain chloride and sulfide ions and can be dissolved in citric acid by neutralizing an iced solution of a titanium salt with an alkali; using the newly precipitated metatitanic acid which does not contain the chloride and sulfide ions and can be dissolved in the citric acid to substitute chlorides and sulfates of titanium for being used as a raw material for synthesizing citric acid titanium without the chloride and sulfide ions; taking the newly precipitated metatitanic acid which does not contain the chloride and sulfide ions and can be dissolved in the citric acid as a titanium source, taking citric acid as an acid solvent and a chelating agent, and synthesizing the citric acid titanium without the chloride and sulfide ions through a microwave hot-melting chelating process; and preparing the trace element fertilizer containing the organic titanium by performing microwave hot-melting (dissolving) chelating on the acidic citric acid titanium and basic salts of copper, zinc, iron, manganese and molybdenum. According to the method disclosed by the invention, a titanium element can be used for promoting the absorption of trace elements and the operation of crops, promoting the growth of the crops and improving the yield and quality of the crops, and all the advantages and effects of the trace elements can be fully played.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for preparing microelement fertilizers containing organic titanium by using a microwave chelation process. 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] Nutrient elements with a content of 0.2~200mg / Kg in plants are called trace elements, such as copper, zinc, iron, manganese, molybdenum and other elements. The ions of trace elements are chelated with organic chelating agents to form chelation State trace element fertilizer. [0004] Trace elements play an extremely important role in plants. The functions of trace elements in plants are very specific, and they are indispensable and irreplaceable. When the soil is deficient in trace elements, it will reduce the yield and quality...

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 FUJIAN CHAODA GROUP
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