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

Method of concentrating and separating glyphosate in high salt content glyphosate mother liquor by film technique

A technology of glyphosate mother liquor and medium glyphosate, which is applied in chemical instruments and methods, compounds of group 5/15 elements of the periodic table, natural water treatment, etc., can solve high energy consumption, steam consumption, high treatment cost, etc. problems, to achieve the effect of protecting the environment, improving quality, and realizing recycling

Active Publication Date: 2007-10-24
HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
View PDF2 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two methods need to add other raw materials and consume steam, and the processing cost is high
The mother liquor of the ammonium salt oxidation method of diglyphosate is treated by steam concentration and desalination, and the filtrate is prepared into glyphosate water, which consumes a lot of energy

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 1

[0016] In the process of preparing glyphosate by the alkyl ester method, 10,000kg of the mother liquor after neutralization and separation of triethylamine is pumped into the raw material liquid tank after being filtered by a filter press, bag filter or precision filter, and then pumped into the raw material liquid tank. The glyphosate mother liquor uses a pump with a head of 20m to pump the raw material liquid into a multi-media filter containing activated carbon to remove the viscous liquid in the mother liquor, and then directly removes the micron particles in the mother liquor through a microporous filter membrane with a pore size of 50 μm, and the mother liquor reaches water quality. When the pollution index SDI is less than or equal to 5, it enters the first-stage membrane system after being pressurized by the high-pressure pump. The glyphosate mother liquor solution entering the first-stage membrane system is separated into two streams after being separated by the first-...

Embodiment 2

[0020] Add 200 kg of sulfuric acid to the 2000 kg mother liquor prepared by air oxidation of diglyphosate to adjust the pH to 1.2, and separate by filtration to obtain 350 kg of glyphosate and 1840 kg of the mother liquor. In above-mentioned mother liquor, pass into ammonia 20kg, PH=2.5. The mother liquor is pumped into the raw material liquid tank after being filtered by a filter press, bag filter or precision filter, and the glyphosate mother liquor in the raw material liquid tank is pumped into the multi-media filter containing activated carbon by a pump with a lift of 30m The viscous liquid in the mother liquor is removed, and then the micron particles in the mother liquor are directly removed through a microporous filter membrane with a pore size of 50 μm. When the mother liquor reaches the water pollution index SDI≤5, it is pressurized by a high-pressure pump and enters the first-stage membrane system. The glyphosate mother liquor solution entering the first-stage membra...

Embodiment 3

[0024] In the process of preparing glyphosate by the alkyl ester method, 10,000kg of the mother liquor after neutralization and separation of triethylamine is pumped into the raw material liquid tank after being filtered by a filter press, bag filter or precision filter, and then pumped into the raw material liquid tank. The glyphosate mother liquor uses a pump with a head of 20m to pump the raw material liquid into a multi-media filter containing activated carbon to remove the viscous liquid in the mother liquor, and then directly removes the micron particles in the mother liquor through a microporous filter membrane with a pore size of 50 μm, and the mother liquor reaches water quality. When the pollution index SDI is less than or equal to 5, it enters the first-stage membrane system after being pressurized by the high-pressure pump. The glyphosate mother liquor solution entering the first-stage membrane system is separated into two streams after being separated by the first-...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a separating method of glyphosate in the mother liquid with glyphosate through film technique, which comprises the following steps: separating the mother liquid with large amount of glyphosate; adjusting pH value between 2 and 11; entering one-grade film separation when the water polluting index is not more than 5; collecting the liquid in the reserving groove when the glyphosate percentage at dense side reaches 2-5%; continuing separating when the glyphosate percentage is below 2% in the condensate; entering the one-grade penetranting liquid with rich salt into two-grade film separation; returning the two-grade condensate into the one-grade film separation; entering the two-grade penetranting liquid with rich salt into three-grade film separation; returning the three-grade condensate into two-grade film separation; draining large amount of salt along with three-grade penetranting liquid.

Description

technical field [0001] The invention relates to a treatment method for glyphosate mother liquor, in particular to a method for concentrating and separating glyphosate in high-salt glyphosate mother liquor by using membrane technology. Background technique [0002] Glyphosate is a herbicide that kills herbicides. At present, the domestic preparation of glyphosate mainly adopts the alkyl ester method and the IDA method. The IDA method is divided into hydrogen peroxide oxidation method and oxygen oxidation method. There are two ways to oxidize the ammonium salt of bisglyphosate. The alkyl ester method and the ammonium salt oxidation method of diglyphosate produce a large amount of salt-containing mother liquor while producing glyphosate technical. , ammonium sulfate, sodium sulfate, ammonium nitrate and other salts or one or more. The glyphosate mother liquor of the alkyl ester method generally adopts the method of steam concentration to remove salt. In this method, the salt ...

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): C07F9/38C02F1/44C02F103/36
CPCY02P20/584
Inventor 丁国良赵经纬刘和德陈健夏金维
Owner HANGZHOU TIAN CHUANG ENVIRONMENTAL TECH
Features
  • Generate Ideas
  • 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