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

Production process for preparing compound fertilizer through urea sulfate ammoniation method

A production process, the technology of urea sulfate, applied in the field of compound fertilizer preparation, can solve the problems such as poor adaptability of the process, and achieve the effects of solving the difficulty of granulation, reducing production costs, and reducing condensation reactions

Inactive Publication Date: 2014-10-22
云中英
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the acid method is mainly suitable for the production of high phosphorus fertilizers and balanced fertilizers, and the adaptability of the process is not strong

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production process for preparing compound fertilizer through urea sulfate ammoniation method
  • Production process for preparing compound fertilizer through urea sulfate ammoniation method
  • Production process for preparing compound fertilizer through urea sulfate ammoniation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A production process for preparing compound fertilizer by urea sulfuric acid ammonification method comprises the following steps:

[0048] (1) Preparation of urea sulfate solution

[0049] Urea is added to the buffer hopper, and after being measured by an electronic belt scale, it is sent to the urea sulfate preparation tank with a conveyor belt; water and concentrated sulfuric acid with a mass concentration of 98% pass through their respective flow metering control systems, and the weight of water, concentrated sulfuric acid and urea The proportion flow ratio of 1:20:100 is sent to the urea sulfate preparation tank; in the urea sulfate preparation tank, urea reacts with concentrated sulfuric acid and water under the condition of sufficient stirring to form urea sulfate liquid and release the heat of reaction; In this system, in order to control the reaction temperature at 80-90°C, a urea sulfuric acid heat exchanger is installed outside the preparation tank, and coolin...

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

The invention discloses a production process for preparing a compound fertilizer through a urea sulfate ammoniation method. The production process includes the steps of urea sulfate solution preparation, material preparation, granulation, drying, crushing, sieving, cooling, coating, packing and other steps. The production process has the advantages that urea can be dissolved without steam, side reactions generating biuret are reduced, the granulation granule-forming rate is high, drying energy consumption is low, the process adaptability is strong, and the product quality is good.

Description

technical field [0001] The invention relates to a production process of compound fertilizer, in particular to a production process of compound fertilizer prepared by ammoniation of urea sulfate, belonging to the field of compound fertilizer preparation. Background technique [0002] At present, with the formulation and implementation of the standards for compound fertilizers and compound fertilizers in my country, the steam agglomeration method and the urine spray method compound fertilizer process in China urgently need to be transformed and upgraded to a compound fertilizer production process with chemical reactions. At present, the simplest amino acid method is generally used. However, the amino acid method is mainly suitable for the production of high-phosphate fertilizers and balanced fertilizers, and the adaptability of the process is not strong. Contents of the invention [0003] In order to solve the above problems, the present invention designs a production proce...

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
IPC IPC(8): C05G1/00
Inventor 云中英王恒涛徐芹雷杨丽娜刘凤梅时钰淇
Owner 云中英
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