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Corn growth promoting agent containing phosphogypsum and as well as preparation method and application thereof

A technology of phosphogypsum and growth accelerator, which is applied in the agricultural field, can solve the environmental pollution of phosphorus chemical waste phosphogypsum, and achieve the effects of promoting sustainable development, improving aggregate structure, and promoting the release of phosphorus

Inactive Publication Date: 2011-03-16
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: The purpose of the present invention is to solve the environmental pollution problem of phosphogypsum, a waste of phosphorus chemical industry, to recycle and recycle environmental pollutants, and to provide a special growth accelerator for corn containing phosphorus gypsum. This special growth accelerator is industrially produced , reusing industrial waste phosphogypsum as a resource to provide fertilizers needed for agricultural production, which can improve and increase soil productivity, promote corn growth, and improve corn quality

Method used

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  • Corn growth promoting agent containing phosphogypsum and as well as preparation method and application thereof
  • Corn growth promoting agent containing phosphogypsum and as well as preparation method and application thereof
  • Corn growth promoting agent containing phosphogypsum and as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Phosphogypsum to make corn growth promoter:

[0028] 1. Dry the waste phosphogypsum from the chemical plant, and then crush it to 200-400 mesh for later use; separately crush zinc sulfate, manganese sulfate, copper sulfate, and humic acid for later use;

[0029] 2. Mix the above-mentioned phosphogypsum powder with pretreated zinc sulfate, copper sulfate, manganese sulfate and humic acid in a weight ratio to prepare a mixture; the mixing weight ratio is: phosphogypsum: zinc sulfate: copper sulfate: manganese sulfate: humic acid Acid=1000: 3-10: 0.5-4: 0.5-3: 1-5; pass 200-400 mesh sieve;

[0030] 3. Mix the above mixture thoroughly to form the final product;

Embodiment 2

[0032] Phosphogypsum to make corn growth promoter:

[0033] 1. Dry the waste phosphogypsum from the chemical plant, and then crush it to 200-400 mesh for later use; separately crush the dried zinc sulfate, manganese sulfate, copper sulfate, and humic acid for later use;

[0034] 2. Mix 1000kg of phosphogypsum powder with pretreated 5kg of zinc sulfate, 3kg of copper sulfate, 2kg of manganese sulfate, and 3kg of humic acid, and pass through 200-400 mesh;

[0035] 3. The above mixture is thoroughly mixed to obtain 1013kg of the final product.

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Abstract

The invention relates to a corn growth promoting agent containing phosphogypsum, which comprises phosphogypsum, zinc sulfate, copper sulfate, manganous sulfate and humic acid according to proportion by weight ratio of 1000:(3-10):(0.5-4):(0.5-3):(1-5). The method for preparing the corn growth promoting agent containing the phosphogypsum comprises the steps of: pulverizing dried dregs drogs of phosphogypsum, zinc sulfate, copper sulfate, manganous sulfate and humic acid to 200-400 meshes for standby later use; and mixing the gypsum powder containing certain amount of phosphorus with the pulverized zinc sulfate, copper sulfate, manganous sulfate, humic acid and the like to obtain a mixture of the corn growth promoting agent. The invention aims to solve the problem of environment pollution caused by a phosphorous chemical waste of, phosphogypsum, and to realize regeneration and utilizationthe recycling of environmental pollutants as resources. The corn-dedicated growth promoting agent containing the phosphogypsum recycles is produced by an industrialized process, and the industrial drogs of the phosphogypsum, as an industrial waste, is regenerated and utilized as a resource by industrialized production to provide fertilizers required by for agricultural production. The corn growth promoting agent containing the phosphogypsum can improve and increase productivity of soil, promote corn growth and improve corn quality.

Description

1. Technical field [0001] The invention relates to the field of agricultural technology, in particular to a special growth accelerator for corn production by resource utilization of phosphorus chemical industry waste and its preparation method and application. 2. Background technology [0002] The process of wet production of phosphoric acid and phosphate fertilizer produces a large amount of solid waste - phosphogypsum. The world produces about 100-280 million tons of scale gypsum every year. It is usually piled on the ground without any treatment, occupying and wasting a lot of land resources, and causing serious problems. environmental pollution. There are more than 400 phosphate fertilizer enterprises in my country, which produce 30-50 million tons of phosphogypsum waste residue every year. These waste residues are often untreated and piled on the ground, which not only occupies a large amount of land, but also contains a variety of heavy metal elements and has a low pH ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
Inventor 吴洪生
Owner NANJING UNIV OF INFORMATION SCI & TECH
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