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Non-acidizing method for producing high-efficiency phosphorus fertilizer

A phosphate fertilizer and high-efficiency technology, which is applied in the field of non-acidification to prepare high-efficiency phosphate fertilizers, can solve problems such as high cost and environmental pollution, and achieve the effects of low cost, saving mineral resources and preventing soil compaction.

Active Publication Date: 2009-05-13
山东清大生态科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of environmental pollution and high cost in conventional phosphate fertilizer preparation methods, the present invention provides a non-acidification method for preparing high-efficiency phosphate fertilizer, which can reduce environmental pollution and reduce the production cost of phosphate fertilizer by physical and biological methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Prepare particle size with ball milling and be that 90% superfine activated phosphate rock powder is over 400 meshes, 20g ultrafine activated phosphate rock powder is mixed with 80g cow dung, then add Pseudomonas fluorescens 2.5ml (10 7 -10 8 pcs / ml), composting and fermenting for 30 days (using the second composting fermentation, the water content of the first fermentation is controlled at 55%-65%, the temperature is greater than 55°C for no less than 7 days, and the highest temperature does not exceed 75°C; the second time Moisture is controlled at 55% in the initial stage of fermentation, and controlled at 25%-35% in the later stage, and the compost is turned once a week for both fermentations.) Then dry and granulate to obtain non-acidified high-efficiency phosphate fertilizer.

Embodiment 2

[0013] Prepare particle size with vibrating mill and be that 90% superfine activated phosphate rock powder of 400 objects is crossed, 40g ultrafine activated phosphate rock powder is mixed with 80g cow dung, then add Pseudomonas fluorescens 2.5ml (10 7 -10 8 pcs / ml), composting and fermenting for 45 days (using the second composting fermentation, the water content of the first fermentation is controlled at 55%-65%, the temperature is greater than 55°C for no less than 7 days, and the maximum temperature does not exceed 75°C; the second fermentation The initial moisture is controlled at 55%, and the latter is controlled at 25%-35%, and the two fermentations are all turned once a week.). Then dry and granulate to obtain non-acidifying high-efficiency phosphate fertilizer.

Embodiment 3

[0015] Be that 90% superfine activated phosphate rock powder of 400 mesh is crossed with vibratory mill preparation particle size, 80g ultrafine activated phosphate rock powder is mixed with 80g cow dung, then add Pseudomonas fluorescens 2.5ml (10 7 -10 8 pcs / ml), composting and fermenting for 60 days (using the second composting fermentation, the water content of the first fermentation is controlled at 55%-65%, the temperature is greater than 55°C for no less than 7 days, and the maximum temperature does not exceed 75°C; the second fermentation The initial moisture is controlled at 55%, and the latter is controlled at 25%-35%, and the two fermentations are all turned over once a week.) Then dry and granulate to obtain non-acidification high-efficiency phosphate fertilizer.

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Abstract

The invention relates to a method for preparing high-efficiency phosphorus fertilizer without acidification. In the method, the material is ground by a vibration milling wet method to prepare super fine activated phosphate rock powder which has high specific surface area, the particle size is 90 percent and can passes through a 400-mesh sieve, the super fine activated phosphate rock powder is mixed with biological organic fertilizer according to the weight ratio of between 1 to 4 and 1 to 1, and pseudomonas fluorescens is added for mixing stockpile manure and fermenting so as to prepare the non-acidification high-efficiency phosphorus fertilizer. The method has the advantages of preparing the high-efficiency phosphorus fertilizer by physical and biological methods, reducing the environmental pollution, solving the problems of environmental pollution, high cost and the like existing in the prior phosphorus fertilizer preparation method and lowering cost of producing the phosphorus fertilizer, along with simple technique; moreover, in long-term usage, the phosphorus fertilizer can prevent the sealing of soil, improve the soil and enhance the soil fertility.

Description

1. Technical field: [0001] The invention relates to a non-acidification method for preparing high-efficiency phosphate fertilizer, which belongs to the field of fertilizer processing and application. 2. Background technology: [0002] At present, the main raw material used in the known production of phosphate fertilizers is phosphate rock, and there are mainly two methods for decomposing phosphate rock, the acid method and the thermal method. Acid-process phosphate fertilizers are generally phosphate fertilizers or compound fertilizers made by decomposing phosphate rock with sulfuric acid, nitric acid, hydrochloric acid or phosphoric acid. Acid-process phosphate fertilizers are mostly water-soluble phosphate fertilizers, such as superphosphate. Thermal phosphate fertilizer is a phosphate fertilizer made by adding silica, dolomite, coke, etc. at high temperature or without adding other ingredients to decompose phosphate rock. Thermal phosphate fertilizer is mostly citrate-sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F17/00C05B17/00
CPCY02W30/40
Inventor 刘春生盖国胜杨玉芬赵夫涛何振全
Owner 山东清大生态科技有限公司
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