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Preparation method and application of high-tower granulated compound fertilizer containing rhamnose gum

A technology of rhamnose gum and high-tower granulation, which is applied in the direction of fertilization methods, applications, and phosphate fertilizers, to achieve the effects of improving fertilizer utilization, increasing soil microbial diversity, and improving soil compaction

Inactive Publication Date: 2019-12-17
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-tower granulation compound fertilizer has the advantages of uniform nutrition, stable product quality, and suitable for re-coating, but there is no report on the application of high-tower granulation to produce compound fertilizer containing rhamnose gum

Method used

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  • Preparation method and application of high-tower granulated compound fertilizer containing rhamnose gum
  • Preparation method and application of high-tower granulated compound fertilizer containing rhamnose gum
  • Preparation method and application of high-tower granulated compound fertilizer containing rhamnose gum

Examples

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Effect test

Embodiment 1

[0053] A preparation method of high-tower granulated compound fertilizer containing rhamnose gum refers to a method for producing urea-based compound fertilizer or nitro-based compound fertilizer by using high-tower granulated equipment. The method includes four processes, and in the four processes Select any one of the processes, or add rhamnose gum raw materials in at least two processes, to produce compound fertilizers; the four processes are raw material mixing process, high tower granulation process, fertilizer granule cooling process and finished product coating process.

[0054]The specific preparation method is: mix molten urea (130-140°C) with preheated (preheated temperature 60-70°C) monoammonium phosphate, potassium sulfate, synergist (sodium nitrophenolate and α-naphthalene Sodium acetate is prepared in a weight ratio of 1:1), rhamnose gum powder and filler (calcium carbonate powder) are mixed in a mixing tank according to a weight ratio of 35:35:30:5:0.05:15, and t...

Embodiment 2

[0067] A preparation method of high-tower granulated compound fertilizer containing rhamnose gum refers to a method for producing urea-based compound fertilizer or nitro-based compound fertilizer by using high-tower granulated equipment. The method includes four processes, and in the four processes Select any one of the processes, or add rhamnose gum raw materials in at least two processes, to produce compound fertilizers; the four processes are raw material mixing process, high tower granulation process, fertilizer granule cooling process and finished product coating process.

[0068] The specific preparation method is: melted ammonium nitrate (140-145°C) and preheated (preheating temperature is 60-70°C) monoammonium phosphate, potassium sulfate, and filler (calcium carbonate powder) according to the preset Mix in the mixing tank at a fixed weight ratio of 38:35:27:15. After the mixture reacts to form a fertilizer slurry with good fluidity, it is sprayed into the granulation t...

Embodiment 3

[0081] A preparation method of high-tower granulated compound fertilizer containing rhamnose gum refers to a method for producing urea-based compound fertilizer or nitro-based compound fertilizer by using high-tower granulated equipment. The method includes four processes, and in the four processes Select any one of the processes, or add rhamnose gum raw materials in at least two processes, to produce compound fertilizers; the four processes are raw material mixing process, high tower granulation process, fertilizer granule cooling process and finished product coating process.

[0082] The specific preparation method is: melted ammonium nitrate (140-145°C) and preheated (preheating temperature is 60-70°C) monoammonium phosphate, potassium sulfate, synergist (sodium nitrophenolate and α- Sodium naphthalene acetate (1:1 by weight) and filler (calcium carbonate powder) are mixed in the mixing tank according to the preset weight ratio of 38:35:27:5:15, and the mixture is reacted to...

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Abstract

The invention discloses a preparation method and application of a high-tower granulated compound fertilizer containing rhamnose gum. The method comprises a process of producing a urea-based compound fertilizer or a nitro-compound fertilizer by utilizing high-tower granulation equipment, a rhamnose gum raw material is added into one of the following four processes or a combination of at least two of the following four processes, and the urea-based compound fertilizer or nitro-compound fertilizer containing the rhamnose gum is prepared. The four processes are a raw material mixing process, a high tower granulation process, a fertilizer particle cooling process and a finished product film-coating process. Compared with a common high-tower granulated compound fertilizer without addition of rhamnose gum, the high-tower granulated compound fertilizer containing the rhamnose gum has the advantages that the utilization rate of the fertilizer can be increased, the crop yield can be effectivelyincreased, soil hardening caused by application of the fertilizer can be effectively improved, and no pollution is caused to the soil environment.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a preparation method and application of a high-tower granulated compound fertilizer containing rhamnose gum. Background technique [0002] Chemical fertilizers are playing an increasingly important role in modern agricultural production. my country is a big country in the use of chemical fertilizers. The annual consumption of chemical fertilizers is as high as 50 million tons (equivalent to pure nitrogen, phosphorus and potassium), which has made outstanding contributions to agricultural development and grain production. However, the use of chemical fertilizers has also brought many negative problems, such as low utilization rate of fertilizers, decline in land quality, water pollution, and decline in crop resistance, which largely threaten the sustainable development of agriculture. [0003] Rhamnose gum is a microbial polysaccharide produced by microbial fermentation. Based on it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04A01C21/00
CPCC05G3/00C05B7/00A01C21/00
Inventor 朱萍王程徐虹冯小海李莎
Owner NANJING UNIV OF TECH
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