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Attapulgite mixing fertilizer having slow release effect

A technology of mixed fertilizers and attapulgite, which is applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of weak base of non-metallic mineral processing industry, low level of development and utilization, waste of resources, etc., to improve the quality of agricultural products, with good results, The effect of increasing yield

Inactive Publication Date: 2016-02-03
LANZHOU KUNLUN ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although my country has a large resource reserve of attapulgite, due to its late discovery, its development and utilization level is low, and the foundation of the national non-metallic mineral processing industry is relatively weak, and the attapulgite products that can be produced are still relatively low compared with other countries. Quite few, so that the application of this economically significant mineral deposit is limited to general fillers, and even exported cheaply in the form of raw soil, resulting in a waste of resources

Method used

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  • Attapulgite mixing fertilizer having slow release effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of attapulgite mixed fertilizer with slow release effect, comprising the following preparation steps:

[0041] A. Raw ore crushing

[0042] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0043] B. Acidification treatment

[0044] The concentrated sulfuric acid of mass fraction 98% is added in water and is mixed with the sulfuric acid solution of molar concentration 1mol / L, adds sulfuric acid solution in the attapulgite ore broken in step A, and acidification process makes attapulgite clay for 4 hours;

[0045] C. Drying and sieving

[0046] Airing the acidified attapulgite clay, drying to reduce the water content of the attapulgite clay to 15%, then crushing and sieving to obtain attapulgite powder, the mesh size of the attapulgite is 100-150 mesh;

[0047] D. Baking

[0048] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 300°C, and the roasting time is 45 minutes;

...

Embodiment 2

[0052] A kind of attapulgite mixed fertilizer with slow release effect, comprising the following preparation steps:

[0053] A. Raw ore crushing

[0054] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0055] B. Acidification treatment

[0056] The concentrated sulfuric acid of mass fraction 98% is added in water and is mixed with the sulfuric acid solution of molar concentration 2mol / L, adds sulfuric acid solution in the attapulgite ore broken in step A, and acidification process makes attapulgite clay for 4 hours;

[0057] C. Drying and sieving

[0058] Airing the acidified attapulgite clay, drying to reduce the water content of the attapulgite clay to 15%, then crushing and sieving to obtain attapulgite powder, the mesh size of the attapulgite is 100-150 mesh;

[0059] D. Baking

[0060] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 360°C, and the roasting time is 60 minutes;

...

Embodiment 3

[0064] A kind of attapulgite mixed fertilizer with slow release effect, comprising the following preparation steps:

[0065] A. Raw ore crushing

[0066] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0067] B. Acidification treatment

[0068] The concentrated sulfuric acid of mass fraction 98% is added in water and is mixed with the sulfuric acid solution of molar concentration 3mol / L, adds sulfuric acid solution in the attapulgite ore broken in step A, and acidification process makes attapulgite clay for 4 hours;

[0069] C. Drying and sieving

[0070] Airing the acidified attapulgite clay, drying to reduce the water content of the attapulgite clay to 15%, then crushing and sieving to obtain attapulgite powder, the mesh size of the attapulgite is 100-150 mesh;

[0071] D. Baking

[0072] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 360°C, and the roasting time is 120 minutes; ...

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Abstract

The invention belongs to the technical field of a fertilizer, and concretely relates to an attapulgite mixing fertilizer having slow release effect, the attapulgite mixing fertilizer is prepared by using attapulgite ore. The attapulgite can use own surface activity, adsorptivity, catalysis performance, filtering effect, ion exchange effect, complexation effect and electrostatic interaction, a soil pH value can be adjusted by two items, and attapulgite can provides appropriate growth environment for crops. The attapulgite can change physical and chemical properties of the soil, reduces soil unit weight, promotes formation of a soil gel state, enhances soil permeability, absorbs harmful heavy metals in the soil, and inhibits insect disease; beneficial elements in the soil can be converted through chelating effect, nutrition balance is reached, crops growth is cooperated, output is increased, and agricultural product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to an attapulgite mixed fertilizer with slow-release effect prepared from attapulgite ore. Background technique [0002] With the rapid development of my country's modern intensive agriculture, long-term and unreasonable large-scale use of inorganic fertilizers has gradually destroyed the farmland soil structure, changed the physical and chemical properties of the soil, and caused soil compaction and degradation. As a result, the yield and quality of crops will decline, and exogenous pollutants will enter animals and humans through water, air and food chain cycles, thereby endangering the health of humans and animals, causing cancer or chronic diseases, etc. [0003] Attapulgite minerals are distributed almost all over the world. Many attapulgite ores have been found in Gansu, Jiangsu, Anhui and other places in my country, and Jiangsu Dingtai ranks first in output. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 陶玲任珺缑栋栋张锋杰赵雅琼
Owner LANZHOU KUNLUN ENVIRONMENTAL PROTECTION TECH
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