Production method of ammonium sulphate phosphate products

A production method and technology of ammonium sulfophosphate, applied in the direction of fertilizer mixture, fertilization device, application, etc., can solve the problems that there is no method for ammonium sulfophosphate product, and achieve high compressive strength, good operating environment, and uniform granulation Effect

Active Publication Date: 2014-08-20
WENGFU (GRP) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the Chinese patent database, there is currently no method for this specification of ammonium sulfosulfate product

Method used

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  • Production method of ammonium sulphate phosphate products
  • Production method of ammonium sulphate phosphate products

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Embodiment Construction

[0018] As shown in the figure, ammonium sulfate solution and monoammonium phosphate slurry are added to the underground tank at the same time. The ammonium sulfate solution is the ammonium sulfate solution produced by making ammonium sulfate from phosphogypsum, with a density of 1.23-1.25g / ml and a water content of 50% to 58% % Containing N mass percentage: 20.5-21.0% Free acid mass percentage: ≦1%. Monoammonium phosphate slurry, density: 1.40-1.45g / ml, water content: 35%-40%, N content: 10-11% P 2 o 5 Mass percentage: 49-50%. The ammonium sulfate solution and monoammonium phosphate slurry entering the underground tank are accurately measured by a flow meter, and light calcium carbonate powder is added according to the following ratio according to the flow rate of the ammonium sulfate solution and monoammonium phosphate slurry entering the underground tank to convert pure ammonium sulfate: Fold pure monoammonium: light calcium carbonate powder = 82:5:13. After being sti...

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Abstract

The invention discloses a production method of ammonium sulphate phosphate products. The production method includes that an ammonium sulfate solution produced by using phosphogypsum to produce ammonium sulfate and an ammonium powder are proportionally mixed, a certain pollution-free nutrient conditioning agent is added, then the ammonium sulfate solution, the ammonium powder and the pollution-free nutrient conditioning agent are fed to a pelletizer for spraying palletizing when the ammonium sulfate solution, the ammonium powder and the pollution-free nutrient conditioning agent are mixed and heated to meet requirements of spraying palletizing, semi-finished products obtained from the pelletizer are screened to obtain qualified 2-4mm product particles, and a coating agent is added during a cooling process to obtain the ammonium sulphate phosphate products. According to the production method of the ammonium sulphate phosphate products, product nutrients are stable, palletizing degree is uniform, compression strength is high, and simultaneously, compared with dry methods for batching, the method is lower in labor intensity and better in field operation environments.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a method for producing a granular ammonium phosphate product by mixing ammonium sulfate solution and monoammonium phosphate slurry. Background technique [0002] Sulphur-containing ammonium phosphate products are becoming more and more popular in the market, and foreign users have already used sulfur as a chemical fertilizer. [0003] The invention patent is a kind of ammonium sulfophosphate product developed based on market demand. [0004] The product specification (N-P-K-S) is: 10-40-0-6 [0005] In the Chinese patent database, there is no method for this specification of ammonium sulfosulfate product at present. After exploring and testing, the inventor provides a method for producing granular ammonium phosphate ammonium phosphate by proportioning ammonium sulfate solution and monoammonium phosphate slurry. Contents of the invention [0006] The purpose of the present inventio...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C05G1/00
Inventor饶轶晟覃庆海
OwnerWENGFU (GRP) CO LTD