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Soil conditioner with potassium feldspar and carbide slag as main raw materials, and preparation method thereof

A technology of soil conditioner and main raw materials, applied in soil conditioning materials, chemical instruments and methods, potash fertilizers, etc., can solve problems such as environmental pollution of carbide slag, and achieve the effect of reducing ecological pressure and promoting growth

Inactive Publication Date: 2017-05-31
广东地球土壤研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are no patent applications and related technologies for the production of soil conditioners using potassium feldspar and carbide slag as main raw materials in China. The present invention not only provides a method for producing potassium-silicon-calcium The new method of type mineral fertilizer / soil conditioner also provides a new way to solve the potential environmental pollution of calcium carbide slag, fully utilizes resources and protects the ecological environment, and realizes the harmless treatment and agricultural resource utilization of calcium carbide slag The sustainable development strategy of harmonious development is of great significance to the establishment of a circular economy society and the protection of the ecological environment in our country

Method used

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  • Soil conditioner with potassium feldspar and carbide slag as main raw materials, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Mix the calcium carbide slag, potassium feldspar and additives after aeration, rinsing, filtration, dehydration and drying at a ratio of 0.4:1:0.25 (the ratio of the additives is activated carbon: sodium chloride: calcium oxide = 1:1.5:0.5) to get the mixed material. Use a crusher to crush the mixed materials, add water and stir them evenly in the mixer, then put the mixed materials into the vertical kiln, calcined at 1000°C for 30 minutes, pass air in and cool to room temperature, and take out the obtained sintered clinker , crushing, and passing through an 80-mesh sieve to obtain the soil conditioner product.

[0025] The soil conditioner prepared in this example is tested according to the agricultural testing standards NY / T2272-2012, NY / T1973-2010 and NY / T2540-2014, and the results are as follows:

[0026] name K 2 o

Embodiment 2

[0028] Mix the calcium carbide slag, potassium feldspar and additives after aeration, rinsing, filtration, dehydration and drying at a ratio of 0.5:1:0.3 (the ratio of additives is activated carbon: Glauber’s salt: anhydrous calcium sulfate = 1:1.2:0.8) to get the mixed material. Use a crusher to crush the mixed material, add water and stir in the mixer evenly, then put the mixed material into the rotary kiln, calcinate at 1100°C for 20min, cool naturally to room temperature, take out the obtained sintered clinker, and crush it , and pass through a 100-mesh sieve to obtain the soil conditioner product.

[0029] The soil conditioner prepared in this example is tested according to the agricultural testing standards NY / T2272-2012, NY / T1973-2010 and NY / T2540-2014, and the results are as follows:

[0030] name K 2 o

Embodiment 3

[0032] Mix the calcium carbide slag, potassium feldspar and additives after aeration, rinsing, filtration, dehydration and drying at a ratio of 0.6:1:0.4 (the ratio of the additives is activated carbon: sodium carbonate: anhydrous calcium sulfate =0.8:1:0.2) to obtain the mixed material. Use a crusher to crush the mixed material, add water and stir in the mixer evenly, then put the mixed material into the tunnel kiln, calcinate at 1250°C for 20 minutes, cool to room temperature, take out the obtained sintered clinker, crush it, Pass through a 100-mesh sieve to obtain the soil conditioner product.

[0033] The soil conditioner prepared in this example is tested according to the agricultural testing standards NY / T2272-2012, NY / T1973-2010 and NY / T2540-2014, and the results are as follows:

[0034] name K 2 o

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Abstract

The invention relates to a soil conditioner with potassium feldspar and carbide slag as main raw materials, and a preparation method thereof, and belongs to the fields of chemical industry, environmental protection and agricultural technology. The soil conditioner is prepared by mixing potassium feldspar, carbide slag and additives according to a certain mass ratio, carrying out crashing and uniform mixing, carrying out high temperature calcining in a kiln, and carrying out cooling, crushing and sieving on the sintered clinker to obtain the soil conditioner provided by the invention. The soil conditioner provided by the invention contains a large number of potassium, silicon, calcium and other elements, which is conducive to promoting the growth of crops, but also making full use of the non water soluble potassium resource, namely potassium feldspar that has a higher potassium content, is most widely distributed and has the largest reserve in China; and a new way is provided for solving the potential environmental pollution problem of the carbide slag, the innocent treatment and agricultural reclamation of the carbide slag, and a sustainable development strategy of harmonious development are realized, and the soil conditioner is of great significance to the establishment of circular economy and protect the ecological environment in China.

Description

technical field [0001] The invention relates to a soil conditioner and a production method thereof, in particular to a soil conditioner with potassium feldspar and carbide slag as main raw materials and a preparation method thereof. The soil conditioner contains a large amount of potassium, silicon, calcium, etc. Elements, belonging to the fields of chemical industry, environmental protection and agricultural technology. Background technique [0002] Potassium is one of the "three elements of fertilizers". There is a serious shortage of potassium in the soil of our country, and the demand for potassium is very large. At present, the soluble potassium salt used for the production of potassium fertilizer is very scarce, and the insoluble potassium-containing ore resources are very rich. Potassium feldspar is the most important one. Potassium feldspar ore is a water-insoluble potassium resource with high potassium content, the widest distribution and the largest reserve. The mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/06C09K17/04C05G3/04C09K101/00C05G3/80
CPCC05D1/00C05G3/80C09K17/04C09K17/06C09K2101/00C05D3/02C05D9/00C05D3/00
Inventor 廖霜韩雷宋昌旭刘剑昇
Owner 广东地球土壤研究院