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Method of producing water soluble ammonium phosphor nitrate through disc granulation

A technology of ammonium nitrate phosphorus and disk granulation, which is applied to ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc. It can solve the problems of unstable product quality and agglomeration, and achieve large-scale production suitable for industrialization. Production, enhanced fluidity, enhanced strength effects

Inactive Publication Date: 2015-06-10
路永宽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of unstable product quality and agglomeration caused by physical stirring and blending of ammonium nitrate and phosphorus at present, the present invention provides a method for disc granulation to produce fully water-soluble ammonium phosphorus nitrate

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  • Method of producing water soluble ammonium phosphor nitrate through disc granulation

Examples

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Embodiment 1

[0012] Example 1 A method for disc granulation to produce fully water-soluble ammonium nitrate phosphorus, comprising the following steps: (1), adding solid ammonium nitrate, solid ammonium dihydrogen phosphate and water to the reactor at a mass ratio of 71:23:3 Heat to dissolve, react at 165°C to obtain molten ammonium nitrate phosphorus, then add the curing agent sodium nitrate, the curing agent sodium nitrate accounts for 2% of the total mass of the mixture after adding the curing agent sodium nitrate, and then evaporate the mixture to a specific gravity of 1.470 g / cm 3 ;

[0013] (2) The concentrated liquid obtained in step (1) enters the cooling tank, stirs and heats up to 100°C, then sends the concentrated liquid into a disc granulator, and granulates through the disc granulator to produce a spherical granular product.

[0014] The purity of solid ammonium nitrate and solid ammonium dihydrogen phosphate is greater than or equal to 99%. To ensure product quality.

Embodiment 2

[0015] Example 2 A method for disc granulation to produce fully water-soluble ammonium nitrate phosphorus, comprising the following steps: (1), adding solid ammonium nitrate, solid ammonium dihydrogen phosphate and water to the reactor at a mass ratio of 75:27:3 Heat to dissolve, react at 165°C to obtain molten ammonium nitrate phosphorus, then add the curing agent sodium nitrate, the curing agent sodium nitrate accounts for 4% of the total mass of the mixture after adding the curing agent sodium nitrate, and then evaporate the mixture to a specific gravity of 1.430g / cm 3 ;

[0016] (2) The concentrated liquid obtained in step (1) enters the cooling tank, stirs and heats up to 110°C, and then sends the concentrated liquid into a disc granulator, and is granulated by the disc granulator to form a spherical granular product.

[0017] The content of solid ammonium nitrate and solid ammonium dihydrogen phosphate is greater than or equal to 99%. To ensure product quality.

Embodiment 3

[0018] Example 3 A method for disc granulation to produce fully water-soluble ammonium nitrate phosphorus, comprising the following steps: (1), adding solid ammonium nitrate, solid ammonium dihydrogen phosphate and water to the reactor at a mass ratio of 73:20:3 Heat to dissolve, react at 165°C to obtain molten ammonium nitrate phosphorus, then add the curing agent sodium nitrate, the curing agent sodium nitrate accounts for 5% of the total mass of the mixture after adding the curing agent sodium nitrate, and then evaporate the mixture to a specific gravity of 1.574g / cm 3 ;

[0019] (2) The concentrated solution obtained in step (1) enters the cooling tank, stirs and heats up to 90°C, then sends the concentrated solution into the disc granulator, and granulates through the disc granulator to produce spherical granular finished products.

[0020] The content of solid ammonium nitrate and solid ammonium dihydrogen phosphate is greater than or equal to 99%. To ensure product q...

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Abstract

The invention relates to a production method of a chemical fertilizer, in particular to a method of producing water soluble ammonium phosphor nitrate through disc granulation, and solves the technical problems that unstable product quality and caking are caused by adopting physically mixing ammonium phosphor nitrate at present. According to the method provided by the invention, production equipment and process can be adjusted to thoroughly solve the problems of non-uniform product content, unstable quality and caking; furthermore, the key of the production method is to synthesize ammonium phosphor nitrate by a chemical synthesis method, look for a proper solidifying agent and best addition; in addition, the ammonium phosphor nitrate produced by the method is spheroidal particles, and a product is dissolved into water to form clear and transparent solution, and the problems that the product is non-uniform in content, unstable in quality and likely to cake can be solved.

Description

technical field [0001] The invention relates to a method for producing chemical fertilizers, in particular to a method for disc granulation to produce fully water-soluble ammonium nitrate phosphorus. Background technique [0002] Ammonium phosphorus nitrate on the market is basically mixed by simple physical stirring, which is prone to uneven product content, unstable quality, and agglomeration, resulting in uneven product content and unstable quality. Therefore need a kind of ammonium nitrate phosphate chemical fertilizer product with less caking phenomenon, uniform content, stable quality. Contents of the invention [0003] In order to solve the technical problems of unstable product quality and agglomeration caused by physical stirring and blending of ammonium nitrate and phosphorus at present, the invention provides a method for disc granulation to produce fully water-soluble ammonium phosphorus nitrate. [0004] The present invention is realized by adopting t...

Claims

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Application Information

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IPC IPC(8): C05G1/06C05G5/00
CPCC05B7/00
Inventor 路永宽
Owner 路永宽
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