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Method for preparing potassium borate fertilizer containing organic titanium by recrystallization process

A technology of organic titanium and recrystallization, applied in application, fertilization equipment, fertilizer mixture, etc., can solve problems such as miscellaneous belts

Inactive Publication Date: 2012-07-04
FUJIAN CHAODA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] 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 synthetic organic titanium citric acid chelate compound Miscellaneous with a large number of chloride ions or sulfide ions
[0023] There is no report on the preparation of organotitanium-containing potassium borate fertilizer by recrystallization by dissolving organic titanium chelate in potassium borate salt crystallization water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of metatitanic acid:

[0052]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;

[0053] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0054] 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.

[0055] (2) Preparation of titanium citrate chelate:

[0056] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0057] The titan...

Embodiment 2

[0071] (1) Preparation of metatitanic acid:

[0072] 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;

[0073] B, the newly precipitated metatitanic acid is washed with distilled water to remove chloride ions;

[0074] 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.

[0075] (2) Preparation of titanium citrate chelate:

[0076] a. Preparation of citric acid-metatitanic acid suspension mixture:

[0077] 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 potassium borate fertilizer containing organic titanium by a recrystallization process. The method is characterized by comprising the following steps of: neutralizing titanium salt ice water solution with a base to prepare a new precipitate metatitanic acid; replacing titanium chloride or sulfate with new precipitate metatitanic acid to be used as a raw material for synthesizing titanium citrate; synthesizing titanium citrate saturated solution with new precipitate metatitanic acid as a titanium source and citric acid as an acid solvent and chelating agent by a microwave hot-melt chelating process; and neutralizing titanium citrate saturated solution with powdery potassium carbonate, salting out to prepare titanium citrate-potassium citrate compound salt, and mixing and co-melting the titanium citrate-potassium citrate compound salt with potassium tetraborate containing crystal water to prepare the potassium borate fertilizer containing organic titanium. According to the invention, excellent-stability and water-soluble titanium citrate prepared by microwave hot-melt sufficient chelating is used as an absorption promoting synergist of the potassium borate fertilizer and crop growth promoter.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a method for manufacturing organic titanium-containing potassium borate fertilizer composed of organic titanium and borate potassium salt. Background technique [0002] Boron is one of the seven micronutrient elements necessary for plant growth and development. It plays an irreplaceable physiological role in the process of plant growth and development, and participates in many important physiological activities of plants. [0003] Boron deficiency in the soil of cultivated land, orchards, and woodlands in China is relatively common. According to the statistics of the second national soil census from 1982 to 1986, the area of ​​boron-deficient cultivated land in the country is more than 500 million mu. The proportion of boron deficiency in cultivated land in Guizhou, Sichuan, Hubei, Hunan, Anhui, Jiangsu, Jiangxi, Yunnan, Henan, Shaanxi, Guangdong, Fujian, Guangxi,...

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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