Near-neutral high-content boron fertilizer and preparation method thereof

A high-content, near-neutral technology, applied in the field of boron fertilizer and its preparation, can solve the problems that the pure boron content of boron fertilizer cannot be further increased, and the boron fertilizer cannot be made into boron fertilizer, so as to achieve good instant solubility, less usage, pure boron The effect of high content

Inactive Publication Date: 2010-08-04
UKHAN FISHERI EHGRIKALCHERAL SAJENS EHND TECH KO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has been unable to further increase the pure boron content of boron fertilizer because the theoretical pure boron content is only 21.48%; the latter can obtain a theoretically pure boron content of 31.05% when the dehydration temperature of boric acid exceeds 200°C or even higher. Boric anhydride, but because the physical properties of boric anhydride are glass blocks, it cannot be made into boron fertilizer at all, that is, boric anhydride with high-purity boron content cannot be used as boron fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: the mass ratio of raw material is 60 kilograms of boric acid, 40 kilograms of borax, and operate according to the following steps:

[0016] (1) 60 kilograms of boric acid and 40 kilograms of borax are fully mixed;

[0017] (2) Place the above mixture in an ordinary dry oven, heat at 400°C to 450°C for 1 hour to dehydrate, and obtain a mixture of boric anhydride and anhydrous borax;

[0018] (3) the above-mentioned boric anhydride and anhydrous borax mixture placed in the common dry oven are naturally cooled;

[0019] (4) The mixture of boric anhydride and anhydrous borax is cooled to 40°C-60°C, taken out, pulverized by a high-speed pulverizer or airflow pulverizer at 3000 rpm, and sieved by a 100-150 mesh screen to obtain pure boron A near-neutral high-boron fertilizer with a 26% content.

Embodiment 2

[0020] Embodiment 2: the mass ratio of raw material is 70 kilograms of boric acid, 30 kilograms of borax, and other is with embodiment 1, obtains the nearly neutral high-content boron fertilizer of pure boron content 27%.

Embodiment 3

[0021] Embodiment 3: the mass ratio of raw material is 75 kilograms of boric acid, 25 kilograms of borax, and other is with embodiment 1, obtains the nearly neutral high-content boron fertilizer of pure boron content 27.5%.

[0022] The near-neutral high-content boron fertilizer of the present invention can be mixed with other foliar fertilizers, pesticides, fungicides, and insecticides during use to reduce the workload of manual secondary spraying of foliar fertilizers, thereby reducing production and labor. cost.

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PUM

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Abstract

The invention discloses a near-neutral high-content boron fertilizer and a preparation method thereof. The boron fertilizer is prepared from the following raw materials in a mass ratio: 60 to 75 of boric acid and 25 to 40 of borax. The method for preparing the high-content boron fertilizer comprises the following steps: (1) fully mixing the boric acid and the borax; (2) heating and dehydrating the mixture at the temperature of between 400 and 450 DEG C to obtain a mixture of boric anhydride and anhydrous borax; (3) cooling the mixture of the boric anhydride and anhydrous borax under drying condition; and (4) after cooling the mixture of the boric anhydride and anhydrous borax to below 60 DEG C, crushing and sieving the mixture to obtain the near-neutral high-content boron fertilizer. The near-neutral high-content boron fertilizer has the characteristics of high content of pure boron, low consumption and high solubility. The method for preparing the high-content boron fertilizer has the advantages of simple and convenient operation and energy conservation.

Description

technical field [0001] The invention belongs to boron fertilizer and a preparation method thereof, in particular to a boron fertilizer with high-purity boron content and a preparation method thereof. Background technique [0002] The boron fertilizer with pure boron content > 20% (according to the mass percentage, the same below) is called high-content boron fertilizer. The existing high-content boron fertilizers at home and abroad are divided into two categories, one is borax decahydrate as raw material, pure boron fertilizer The strong alkaline high-content boron fertilizer with a content of 21%; the other type is a weak acid high-content boron fertilizer with boric acid as raw material and a pure boron content of 23% to 23.5%. The former has been unable to further increase the pure boron content of boron fertilizer because the theoretical pure boron content is only 21.48%; the latter can obtain a theoretically pure boron content of 31.05% when the dehydration temperatu...

Claims

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Application Information

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IPC IPC(8): C05D9/00
Inventor 甘霖甘普祥
Owner UKHAN FISHERI EHGRIKALCHERAL SAJENS EHND TECH KO
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