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Preparation method of succinate type aid for water-based pesticide preparation

A succinate, water-based technology, applied in the direction of botanical equipment and methods, applications, biocides, etc., can solve the problems of stratification of stability over time, and achieve the effect of improving stability over time and good sexual effect

Inactive Publication Date: 2018-04-03
南京扬子鸿利源化学品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Modern pesticides are changing rapidly and are developing in the direction of environmental protection. Water-based and solidification are the main directions. At present, domestic pesticide adjuvants are not very developed, and there is still a big gap compared with developed countries. The water-based formulations formulated with additives have more or less certain problems in physical stability, mainly in the stability over time, and there are often serious stratification phenomena

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for a succinate-type auxiliary agent used in pesticide water-based formulations, comprising the steps of:

[0017] 1) Put 10mol of arachidonic acid into the polymerization kettle, add 58g of initiator azobisisobutyronitrile and catalyst double metal cyanide complex DMC2.9g to catalyze, stir, and add 50mol under the protection of inert gas Propylene oxide, stirring at the same time to raise the temperature to 90-110°C, adjust the pressure to 0.2-0.5MPa, and polymerize for 2-5 hours to obtain arachidonic acid polyoxyethylene ether;

[0018] 2) After adding the polyoxyethylene arachidonic acid ether obtained in step 1) and 4mol butenedioic anhydride to the reactor, under the protection of an inert gas, stir and raise the temperature to 180-220°C, and react for 3-5 hours. After removing water under reduced pressure, arachidonic acid polyoxyethylene ether butenedioate is obtained;

[0019] 3) Thoroughly stir the arachidonic acid polyoxyethylene ether bu...

Embodiment 2

[0021] A preparation method for a succinate-type auxiliary agent used in pesticide water-based formulations, comprising the steps of:

[0022] 1) Put 10mol of arachidonic acid into the polymerization kettle, add 232g of initiator azobisisobutyronitrile and catalyst double metal cyanide complex DMC29g to catalyze, stir, and add 100mol of epoxy under the protection of inert gas Propane, stirring at the same time to raise the temperature to 90-110°C, adjust the pressure to 0.2-0.5MPa, and polymerize for 2-5 hours to obtain arachidonic acid polyoxyethylene ether;

[0023] 2) After adding the polyoxyethylene arachidonic acid ether obtained in step 1) and 5mol butenedioic anhydride to the reactor, under the protection of an inert gas, stir and raise the temperature to 180-220°C, and react for 3-5 hours. After removing water under reduced pressure, arachidonic acid polyoxyethylene ether butenedioate is obtained;

[0024] 3) Thoroughly stir the arachidonic acid polyoxyethylene ether ...

Embodiment 3

[0026] A preparation method for a succinate-type auxiliary agent used in pesticide water-based formulations, comprising the steps of:

[0027] 1) Put 10mol of arachidonic acid into the polymerization kettle, add 100g of initiator azobisisobutyronitrile and 10g of catalyst double metal cyanide complex DMC to catalyze, stir, and add 80mol of epoxy under the protection of inert gas Propane, stirring at the same time to raise the temperature to 90-110°C, adjust the pressure to 0.2-0.5MPa, and polymerize for 2-5 hours to obtain arachidonic acid polyoxyethylene ether;

[0028] 2) After adding the polyoxyethylene arachidonic acid ether obtained in step 1) and 3.5mol butenedioic anhydride to the reactor, under the protection of an inert gas, stir and heat up to 180-220°C, and react for 3-5 hours. After removing water under reduced pressure, arachidonic acid polyoxyethylene ether butenedioate was obtained;

[0029] 3) Thoroughly stir the arachidonic acid polyoxyethylene ether butenedi...

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Abstract

The invention discloses a method for preparing a succinate-type auxiliary agent used in pesticide water-based preparations. Arachidonic acid is put into a polymerization kettle, an initiator and a catalyst are added, and stirring is carried out. Add propylene oxide, stir and raise the temperature to 90-110°C, adjust the pressure to 0.2-0.5MPa, and polymerize for 2-5 hours to obtain arachidonic acid polyoxyethylene ether; add it and butenedioic anhydride to the reactor Finally, under the protection of inert gas, stir and heat up to 180-220°C, react for 3-5 hours, and obtain arachidonic acid polyoxyethylene ether after decompression and dehydration; fully stir it with bisulfite solution , After water removal, arachidonic acid oxyethylene succinate sulfonate was obtained. The product prepared by the invention has hydrophilic group sulfite and lipophilic group aliphatic chain, and its surface activity is better than that of traditional surfactants.

Description

technical field [0001] The invention relates to the field of pesticide preparation, and relates to a preparation method of a succinate-type auxiliary agent used in a pesticide water-based preparation. Background technique [0002] Modern pesticides are changing rapidly and are developing in the direction of environmental protection. Water-based and solidification are the main directions. At present, domestic pesticide adjuvants are not very developed, and there is still a big gap compared with developed countries. The water-based preparations formulated with the above-mentioned additives have more or less certain problems in terms of physical stability, mainly in terms of stability over time, and serious stratification often occurs. The invention mainly innovates in the molecular structure, so that it has the characteristics of both the nonionic surfactant and the anionic surfactant, thereby more adapting to the needs of the pesticide formulation. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/326C08G65/332C08G65/338A01N25/30A01N43/76
CPCC08G65/338A01N25/30A01N43/76C08G65/326C08G65/3328C08G2650/04
Inventor 吴进王先彬
Owner 南京扬子鸿利源化学品有限责任公司
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