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Method for preparing fertilizer through high-iron low-tin ore tailings

A technology of high iron and low tin ore, high iron and low tin, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of declining input-output ratio, increase production cost and other problems, and achieve the effect of improving output and quality

Inactive Publication Date: 2014-04-09
郭裴哲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country is one of the countries with the largest amount of chemical fertilizers. It accounts for 8% of the world's arable land but uses about 30% of the amount of chemical fertilizers. Due to excessive or unreasonable partial application of chemical fertilizers, the input-output ratio has decreased and production costs have increased.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for making fertilizer from high-iron and low-tin ore tailings, comprising:

[0019] 1) Mix high-iron and low-tin mine tailings, potassium feldspar, and phosphorus-containing siltstone in a mass ratio of 1:5:4, crush them into powder, mix well, add humic acid and tap water, and the amount of humic acid added is high iron and low tin The amount of tailings added is 3 times, and the amount of tap water added is 9 times the amount of high-iron and low-tin tailings added. After mixing evenly, place it in a rotary furnace at 300 ° C for 100 minutes to obtain a mixture;

[0020] 2) Granulate the mixture to obtain 10-30mm granules, dry at 100°C, cool naturally, and pack to make high-iron and low-tin ore tailings fertilizer.

Embodiment 2

[0022] A method for making fertilizer from high-iron and low-tin ore tailings, comprising:

[0023] 1) Mix high-iron and low-tin mine tailings, potassium feldspar, and phosphorus-containing siltstone in a mass ratio of 2:1:6, crush them into powder, mix well, add humic acid and tap water, and the amount of humic acid added is high-iron and low-tin The amount of tailings added is 2 times, and the amount of tap water added is 6 times the amount of high-iron and low-tin tailings added. After mixing evenly, place it in a 500°C rotary furnace and bake for 120 minutes to obtain a mixture;

[0024] 2) Granulate the mixture to obtain 10-30mm granules, dry at 80°C, cool naturally, and pack to make high-iron and low-tin ore tailings fertilizer.

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PUM

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Abstract

The invention relates to a method for preparing a fertilizer through high-iron low-tin ore tailings. The method comprises the following steps: powdering the high-iron low-tin ore tailings, potassium feldspar and sandstones containing phosphorus powder, and performing uniform mixing; adding humic acid and tap water, and performing uniform mixing to obtain a product; putting the product into a rotary furnace, and performing baking to obtain a mixture; granulating the mixture to obtain granules; drying, naturally cooling and packaging the granules to prepare the high-iron low-tin ore tailings fertilizer. The fertilizer prepared through the method contains multiple elements, so that a crop can reach an optimum growth state, requirements of the crop on various elements can be met, and the yield and quality of the crop are improved.

Description

technical field [0001] The invention relates to a method for making fertilizer by utilizing tailings of high-iron and low-tin mines, belonging to the field of chemical fertilizers. Background technique [0002] Fertilizer is the grain of crops, and chemical fertilizer is the main means of production. my country is one of the countries with the largest amount of chemical fertilizers. It accounts for 8% of the world's arable land but uses about 30% of the amount of chemical fertilizers. Due to excessive or unreasonable partial application of chemical fertilizers, the input-output ratio has decreased and production costs have increased. [0003] A large number of high-iron and low-tin mines have been mined, and the tailings have exerted tremendous pressure on the ecological environment, and even caused huge damage. Tailings contain a large amount of iron resources. Therefore, making full use of high-iron and low-tin mine tailings and turning waste into treasure has great scien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 郭裴哲
Owner 郭裴哲