Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Production method of urea ammonium phosphate compound fertilizer

A production method and compound fertilizer technology, applied in the direction of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc., can solve the problems of low content of effective nutrient elements, imbalance, affecting the sustainable growth of agricultural production, etc., and achieve simple production process , easy to achieve, and the effect of reducing packaging costs

Inactive Publication Date: 2017-09-19
高云
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical fertilizers produced in my country are still dominated by a single variety, the content of effective nutrients in fertilizers is low, and the ratio of nitrogen and phosphorus is seriously out of balance (N:P 2 o 5 =1:0.23), which will inevitably affect the sustainable growth of agricultural production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Get 5 kilograms of dihydrate wet-process phosphoric acid (20.53%P 2 o 5 ), neutralized with gas ammonia to a neutralization degree of 1.17, heated and concentrated (at a temperature of about 95°C, for 4 to 5 hours), after concentration, the ammonium phosphate slurry contains H 2 O36.7%, the temperature is about 85°C, add 1.75 kg of urea and mix evenly, dry and grind at 70-80°C to get the urea ammonium phosphate product.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A production method of urea ammonium phosphate compound fertilizer adopts medium and low-grade phosphate rock to produce dihydrate wet-process phosphoric acid, wherein the content of P-[2]O-[5] is about 20%, and the impurity content of iron, aluminum and magnesium oxides is about 4-5% %. This poor quality phosphoric acid is neutralized with ammonia, and then urea is added according to the mass ratio of phosphoric acid and urea of ​​100:35, and the temperature is controlled below 100°C to obtain urea ammonium phosphate compound fertilizer. This fertilizer contains nitrogen. Phosphorus ratio is appropriate and can be adjusted according to the requirements of different soils and crops, overcoming the shortcomings of low ammonium phosphate nitrogen and phosphorus.

Description

technical field [0001] The invention belongs to chemical preparation of urea ammonium phosphate compound fertilizer. Background technique [0002] Urea ammonium phosphate compound fertilizer has a suitable ratio of nitrogen and phosphorus, which can be adjusted according to the requirements of different soils and crops, and overcomes the shortcomings of low ratios of ammonium phosphate to nitrogen and phosphorus. Regardless of its production process, product properties and fertilizer efficiency, urea ammonium phosphate is superior to urea calcium ammonium, urea ammonium nitrate, and urea ammonium sulfate system fertilizers. [0003] In recent years, the quality of phosphate rock mined at home and abroad has been declining, and the reserves of high-grade phosphate rock are increasingly depleted. However, the chemical fertilizers produced in my country are still dominated by a single variety, the content of effective nutrients in fertilizers is low, and the ratio of nitrogen ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
CPCC05B7/00
Inventor 高云
Owner 高云
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com