Supercharge Your Innovation With Domain-Expert AI Agents!

Device and method for extracting sodium dihydrogen phosphate dihydrate by using crude brine in glyphosate production process through glycine method

A technology of disodium hydrogen phosphate dihydrate and glyphosate, applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problem of low mixing ratio of industrial-grade phosphate and active ingredients of disodium hydrogen phosphate dodecahydrate. Low, odor and other problems, to reduce sales pressure, reduce environmental pressure, reduce odor effects

Active Publication Date: 2015-08-12
HUBEI TAISHENG CHEM
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the low active ingredient and odor of disodium hydrogen phosphate dodecahydrate, and the low mixing ratio for the production of industrial-grade phosphate, the present invention provides a method for extracting disodium hydrogen phosphate dihydrate from crude brine in the process of producing glyphosate by glycine method The device and method can effectively solve the problem of product quality, realize emission reduction and increase efficiency

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
  • Device and method for extracting sodium dihydrogen phosphate dihydrate by using crude brine in glyphosate production process through glycine method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The disodium hydrogen phosphate dodecahydrate obtained from the extraction process in the salt workshop of our company enters the dissolution tank and is heated to 60°C for dissolution. Activated carbon is treated in the process of fine removal, and finally enters the MVR evaporation and concentration device, and after centrifugation, the finished product of disodium hydrogen phosphate dihydrate is obtained.

[0027] A device for extracting disodium hydrogen phosphate dihydrate from crude brine in the process of producing glyphosate by glycine method. Dissolving tank 1 is connected to heat exchanger one 2.1 through a feed pipe, and heat exchanger one 2.1 is connected to filter one 3.1, wherein The heat exchanger one 2.1 also forms a circulation loop with the dissolving tank 1 through the feed pipe, and the filter one 3.1 is connected with the buffer tank one 4.1, the deamination kettle 5 and the decolorization kettle 6 successively through the feed pipe;

[0028] The de...

Embodiment 2

[0039] In the present invention, the disodium hydrogen phosphate dodecahydrate from the self-made salt workshop will be poured into the dissolving tank for heating and dissolving, and the solution will pass through the heat exchanger and enter the buffer tank, and the solution will enter the deamination kettle, decolorization kettle, and decolorization tower successively, and the solution that comes out will pass through the decolorization tank. The heat exchanger enters the continuous evaporation device, the slurry enters the crystallizer for crystallization, and the crystallized product enters the thickener for continuous crystallization, and the crystal slurry liquid finally enters the centrifugal packaging to obtain the finished product of disodium hydrogen phosphate dihydrate.

[0040] A method for extracting disodium hydrogen phosphate dihydrate from crude brine in the process of producing glyphosate by a glycine method, comprising the steps of:

[0041] 1) Pretreatment: ...

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 provides a device and a method for extracting sodium dihydrogen phosphate dihydrate by using crude brine in a glyphosate production process through a glycine method and in particular relates to a novel process technology for extracting sodium dihydrogen phosphate dihydrate by using glyphosate crude brine. The invention aims at solving the problems that the conventional sodium phosphate dibasic dodecahydrate is low in content of active ingredients, odorous and low in doping rate when being used for producing industrial grade phosphate and the like. The sodium dihydrogen phosphate dihydrate is extracted from the crude brine by virtue of technologies such as dissolving pretreatment, deamination, decoloration and MVR evaporation and concentration.

Description

technical field [0001] The invention relates to a process of extracting disodium hydrogen phosphate dihydrate from crude brine in the process of synthesizing glyphosate by glycine method, and specifically relates to the extraction of dihydrate from glyphosate mother through oxidation, freezing crystallization, pressure filtration, denitrification, MVR evaporation and concentration. Disodium Hydrogen Phosphate Technology. Background technique [0002] Our company has 70,000 tons / year glyphosate technical production equipment, and the 60,000 tons / year glyphosate technical expansion device is expected to be put into operation by the end of this year, when the total output will reach 130,000 tons / year. At the same time, in the process of producing glyphosate, a large amount of mother liquor (coarse brine) will be produced. For every ton of glyphosate produced, 4.5 tons of crude brine will be obtained, so that 585,000 tons of crude brine will be produced every year. At present, ...

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): C01B25/30
Inventor 田义群徐森军覃立忠王瑞宝
Owner HUBEI TAISHENG CHEM
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com