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Release promoting magnesium fertilizer and its preparation process

A manufacturing method and technology of magnesium fertilizer, applied in the direction of magnesium fertilizer, inorganic fertilizer, fertilization device, etc., can solve the problems of high cost and high energy consumption, and achieve the effect of promoting release, excellent fertilizer efficiency, and stable release process

Inactive Publication Date: 2008-03-26
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem of high energy consumption and high cost in the existing magnesium fertilizer, and provide a kind of low price and good fertilizer effect accelerated-release magnesium fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 5% by weight of acid-analyzed lignin to light burning (MgO), adjust the water content of the mixture to 30%, stir and mix with a disc for about 15 minutes, then discharge and stack for 2 days, and turn it every day for 1-2 days. 2 times. The matured fertilizer is dried below 50°C through a hot air drying cylinder, and then crushed and bagged with a ring-chain pulverizer.

Embodiment 2

[0017] Add 12% magnesium lignosulfonate by weight to the magnesite powder, adjust the water content of the mixture to about 25%, stir and mix with a stirrer for about 15 minutes, then discharge and stack for aging for 3 days, turning 1 hour a day ~2 times. The matured fertilizer is blown and dried by natural wind, and after completion, it is pulverized and bagged with a ring-chain pulverizer.

Embodiment 3

[0019] Add 8% by weight of monosodium glutamate fermentation waste concentrate to the brucite powder, adjust the water content of the mixture to about 25%, stir and mix with a double-pumped screw agitator for about 15 minutes, and then discharge and stack for aging for 1 day. Flip 1-2 times a day. The matured fertilizer is dried in the sun, and after completion, it is pulverized and bagged with a ring-chain pulverizer.

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Abstract

The present invention discloses one kind of release promoting magnesium fertilizer and its preparation process. The present invention prepares the release promoting magnesium fertilizer through mixing the activator prepared with papermaking waste liquid and sodium glutamate fermenting waste liquid with insoluble magnesium containing compound. The release promoting magnesium fertilizer has obviously raised magnesium releasing speed, fertilizer efficiency similar to or higher than that of magnesium sulfate, low power consumption and no acid consumption in its making process, and low cost.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a magnesium fertilizer and a manufacturing method thereof. Background technique [0002] At present, the most widely used magnesium fertilizer at home and abroad is magnesium sulfate. The fertilizer has high water solubility and quick effect; but it is easy to lose, and the cost is high, and it needs to consume a lot of sulfuric acid, and its production raw material (MgO) also needs energy to be fired from magnesite. Contents of the invention [0003] The purpose of the present invention is to overcome the problem of high energy consumption and high cost of existing magnesium fertilizers, and provide a low-cost, high-efficiency accelerated-release magnesium fertilizer. [0004] Another object of the present invention is to provide a method for producing the above-mentioned accelerated-release magnesium fertilizer. [0005] In order to achieve the above purpose, the present invention breaks thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05D5/00
Inventor 廖宗文毛小云赵冰李世坤
Owner SOUTH CHINA AGRI UNIV
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