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Improvement and synergy method for mixed attapulgite

A technology of attapulgite and attapulgite powder, applied in fertilizer mixture, application, organic fertilizer and other directions, can solve the problems of weak non-metallic mineral processing industry foundation, low level of development and utilization, waste of resources, etc., to improve the quality of agricultural products and achieve good results , the effect of increasing production

Inactive Publication Date: 2018-10-19
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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  • Improvement and synergy method for mixed attapulgite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] An improved synergistic method for mixing attapulgite, comprising the following preparation steps:

[0057] A. Raw ore crushing

[0058] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0059] B. Acidification treatment

[0060] Concentrated sulfuric acid with a mass fraction of 98% was added to the water to prepare a sulfuric acid solution with a molar concentration of 1 to 3 mol / L, and the sulfuric acid solution was added to the attapulgite ore broken in step A, and acidified for 4 hours to make attapulgite clay;

[0061] C. Drying and sieving

[0062] 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;

[0063] D. Baking

[0064] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 300-360°C, and the roasting time is 45-120 ...

Embodiment 2

[0072] An improved synergistic method for mixing attapulgite, comprising the following preparation steps:

[0073] A. Raw ore crushing

[0074] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0075] B. Acidification treatment

[0076] Concentrated sulfuric acid with a mass fraction of 98% was added to the water to prepare a sulfuric acid solution with a molar concentration of 1 to 3 mol / L, and the sulfuric acid solution was added to the attapulgite ore broken in step A, and acidified for 4 hours to make attapulgite clay;

[0077] C. Drying and sieving

[0078] 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;

[0079] D. Baking

[0080] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 300-360°C, and the roasting time is 45-12...

Embodiment 3

[0088] An improved synergistic method for mixing attapulgite, comprising the following preparation steps:

[0089] A. Raw ore crushing

[0090] Crushing the attapulgite ore, the crushing mesh is 30 mesh-60 mesh;

[0091] B. Acidification treatment

[0092] Concentrated sulfuric acid with a mass fraction of 98% was added to the water to prepare a sulfuric acid solution with a molar concentration of 1 to 3 mol / L, and the sulfuric acid solution was added to the attapulgite ore broken in step A, and acidified for 4 hours to make attapulgite clay;

[0093] C. Drying and sieving

[0094] 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;

[0095] D. Baking

[0096] Send the screened attapulgite powder into a roasting furnace for roasting, the roasting temperature is controlled at 300-360°C, and the roasting time is 45-12...

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Abstract

The invention belongs to the technical field of fertilizer, and particularly relates to an improvement and synergy method for mixed attapulgite. The attapulgite can utilize own surface activity, adsorptivity, catalytic performance, filtering function, ion exchange function, complexing action and electrostatic function to carry out two-way regulation on the pH (Potential of Hydrogen) value of soilso as to provide proper growth environment for crops. The attapulgite also can be used for changing the physicochemical and biological characters of soil, lowering soil unit weight, accelerating the formation of a soil gel state, enhancing soil gas permeability, adsorbing harmful heavy metal in soil and inhibiting diseases and insect pests, beneficial elements in soil are converted through a chelating function to achieve nutrition balance, crop growth and development is coordinated, yield is improved, and the quality of an agricultural product is improved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to an improved and synergistic method for mixing attapulgite. 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. It has been proven that Gansu'...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05D3/02C05G3/80C05D5/00C05F1/005C05F9/04C05F3/00
Inventor 任珺陶玲张倩张雪彬曹天轶
Owner LANZHOU KUNLUN ENVIRONMENTAL PROTECTION TECH
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