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Special-purpose adjuvant for pesticide suspension agent and its preparation method

A technology for suspending agent and pesticide, which is applied to the special auxiliary agent of pesticide suspending agent and its preparation field, can solve the problems of high cost and unsatisfactory physical stability of the auxiliary agent, and achieve cost reduction, improvement of physical and chemical properties, and good physical stability. Effect

Inactive Publication Date: 2004-07-28
SINOPEC JINLING PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing adjuvants either have unsatisfactory physical stability or high cost, and provide people with a special adjuvant and a special adjuvant for pesticide suspension concentrates with ideal physical properties and low cost. Preparation

Method used

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  • Special-purpose adjuvant for pesticide suspension agent and its preparation method
  • Special-purpose adjuvant for pesticide suspension agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Metering the phenethyl phenol formaldehyde resin into the polymerization kettle, adding 0.1% alkali metal potassium hydroxide catalyst, and blowing nitrogen for vacuum dehydration for 30 minutes;

[0022] (2) According to the molar ratio of phenethyl phenol formaldehyde resin to ethylene oxide of 1:10, ethylene oxide was continuously introduced to polymerize at 140°C. After the reaction, it was aged for 20 minutes, and then removed under reduced pressure. Molecules and volatiles; neutralize when the temperature is lower than 100°C, and produce phenethyl phenol formaldehyde resin polyoxyethylene ether. The pH, cloud point, and moisture are respectively cloud point 76°C, moisture 0.35%, and pH 6.12;

[0023] (3) Combine phenethyl phenol formaldehyde resin polyoxyethylene ether with esterification agent P 2 O 5 According to the molar ratio of 2.3:1, the esterification reaction was carried out at a temperature of 50°C for 2 hours;

[0024] (4) After the esterification react...

Embodiment 2

[0028] The process steps of embodiment 2 are exactly the same as the embodiment, no yes

[0029] The amount of catalyst in step (1) is 0.3%;

[0030] In step (2), the molar ratio of phenethyl phenol formaldehyde resin to ethylene oxide is 1:20, the polymerization temperature is 150°C, and the aging time is 40 minutes. After the polymerization reaction, the measured phenethyl phenol formaldehyde resin polyoxyethylene ether The quality index data is: cloud point 97°C, moisture 0.21%, PH 5.96;

[0031] In step (3), the molar ratio of the phenethyl phenol formaldehyde resin polyoxyethylene ether to the esterification agent is 3:1, and the esterification agent is PCl 3 , The esterification temperature is 80℃, and the esterification time is 5 hours;

[0032] In step (4), the organic base is diethanolamine, and the measured quality index data of the dispersant is: the effective content of 97.8%, the moisture of 0.94%, and the pH of 6.88

[0033] The prepared dispersant and the wetting ag...

Embodiment 3

[0035] The process steps of Example 3 are also completely the same as those of Example 1, except that:

[0036] The amount of catalyst in step (1) is 0.7%;

[0037] In step (2), the molar ratio of phenethyl phenol formaldehyde resin to ethylene oxide is 1:50, the polymerization temperature is 170°C, and the aging time is 60 minutes. After the polymerization reaction is completed, the quality of the phenethyl phenol formaldehyde resin polyoxyethylene ether is measured. Index data: cloud point>100℃, moisture 0.24%, PH5.72;

[0038] In step (3), the molar ratio of the phenethyl phenol formaldehyde resin polyoxyethylene ether to the esterification agent is 4:1, and the esterification agent is POCl 3 , The esterification temperature is 100℃, and the esterification time is 8 hours

[0039] In step (4), the organic base is diethylenetriamine, and the measured quality index data of the dispersant: effective substance content 97.3%, moisture 1.13%, pH 7.02

[0040] The prepared dispersant ...

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Abstract

The present invention relates to a special-purpose adjuvant for pesticide suspension agent and its preparation method. The special-purpose adjuvant is made up by using dispersing agent and moistening agent according to the ratio of 1:10-10:1 through the process of compounding them. Its preparation method includes the following steps: (1), adding phenethyl phenol formaldehyde resin into polymerization still, adding catalyst, introducing nitrogen gas and vacuum dewatering; (2) continuously introducing epoxy ethane at 140-170 deg.C, then ageing, pressure-reducing and removing small molecule and volatile matter, cooling to below 100 deg.c and making neutralization to obtain phenethyl phenol formaldehyde resin polyoxyethylene other; (3) making the above-mentioned product and esterifying agent implement esterification reaction; (4). after the esterification reaction is completed, using organic alkali to make neutralization, after the pH value is reached to 6-8, removing water and filtering to obtain dispersing agent; and (5). mixing the dispersing agent with moistening agent according to a certain ratio.

Description

Background technique [0001] Pesticide adjuvants are the general term for other auxiliary substances used in pesticide processing formulations and applications other than the effective ingredients of pesticides, and are an indispensable and important component in the processing of pesticide formulations. In recent years, with the development of new pesticide formulations that are safe, environmentally friendly, low-toxic and highly effective, it is even more demanding to have corresponding novel and efficient additives to complement them. [0002] At present, the additives of domestic pesticide formulations are basically traditional non-ionic surfactants. Because they cannot provide electrostatic repulsion at the same time, the physical stability of the formulated formulations is not ideal, and a large proportion of products are often cured, which seriously affects The use of pesticide products. [0003] The auxiliary agents of foreign pesticide preparations are generally composed ...

Claims

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Application Information

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IPC IPC(8): A01N25/00
Inventor 张建荣黎松贾建国吴进陈朝文
Owner SINOPEC JINLING PETROCHEMICAL CO LTD