Method for separating and concentrating glyphosate stock solution

A glyphosate mother liquor and integrated membrane separation technology, applied in the field of membrane separation, can solve the problems of environmental pollution, high energy consumption, unfavorable transportation and sales, etc., and achieve the effects of reducing environmental pollution, high concentration concentration, and preventing decomposition.

Active Publication Date: 2006-05-24
HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a broad-spectrum and high-efficiency herbicide, glyphosate is widely used in agricultural production. At present, it is mainly synthesized by IDA process, but the concentration of glyphosate mother liquor synthesized by IDA process is low, which is very difficult for transportation and sales. Unfavorable, enterprises are now

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
  • Method for separating and concentrating glyphosate stock solution
  • Method for separating and concentrating glyphosate stock solution
  • Method for separating and concentrating glyphosate stock solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, in the attached figure 1 Put a large amount of glyphosate mother liquor with a concentration of 3% in the original water tank 1, and the temperature is about 20 degrees at room temperature. Now this glyphosate mother liquor is concentrated.

[0024] The flow rate of the glyphosate mother liquor is 1T / H, and the glyphosate mother liquor is pumped into the pretreatment device 3 by the booster pump 2 under the operating condition of a pressure of 0.2Mpa. The ultrafiltration device 9 is pretreated, and the mother liquor that is pretreated enters the first-stage reverse osmosis module 10 (using nanofiltration membranes here, 4 NF270 nanofiltration membranes) by the high pressure pump 4 at 0.8Mpa to concentrate. The concentration of glyphosate can reach about 10%. As the final commercial glyphosate solution, the permeate also contains about 1.6% of glyphosate. Secondary reverse osmosis module 14 (4 pieces of ESPA4040 reverse osmosis membrane) is concentrated,...

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 method for concentrating glyphosate mother solution by membrane separation technique, separating glyphosate mother solution by selectively permeable membrane at normal temperature and high pressure, thus achieving the concentrating effect, and the whole course comprises preprocessing device, pressure pump, concentrating device and auxiliary system, where the concentrating device is the kernel part and for achieving better effect, comprises reverse osmosis and accept filtration or two-stage reverse osmosis. The advantages of the invention: it can effectively concentrate glyphosate mother solution and assure the quality of the glyphosate mother solution, and reduces secondary pollution and energy consumption in the concentrating course. And the invention can be widely applied to the occasions in need of concentrating glyphosate.

Description

technical field [0001] The invention relates to a membrane separation technology, in particular to a membrane separation technology for glyphosate solution concentration. Background technique [0002] As a broad-spectrum and high-efficiency herbicide, glyphosate is more and more widely used in agricultural production. At present, it is mainly synthesized by IDA process, but the concentration of glyphosate mother liquor synthesized by IDA process is low, which is extremely difficult for transportation and sales. Unfavorable, enterprises are now using evaporation method to remove most of the water, but the evaporation process consumes a lot of energy, and evaporation can easily cause the decomposition of glyphosate and reduce the product yield. cause serious pollution. Moreover, as an organic substance, when subjected to high temperature treatment, the molecular structure of the substance often changes, such as the occurrence of chemical phenomena such as molecular decomposit...

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): C07F9/38B01D61/00
Inventor 徐寅初吴礼光卫龙刘立芬沈江南
Owner HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap