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A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant

A technology of surfactant and ethylene glycol phenyl ether, which is applied in the field of preparation of ethylene glycol phenyl ether phosphate monoester surfactant, can solve the problems of weak alkali resistance and unsuitability for high alkali environment, and achieve equipment corrosion resistance Small, easy to mass-produce, simple to separate effects

Active Publication Date: 2017-09-26
马鞍山市恺鸾鑫实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can increase the content of monoester, it is not suitable for high alkali environment, and the alkali resistance is weak

Method used

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  • A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant
  • A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant
  • A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant

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Embodiment 1

[0029] A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant of the present embodiment, its steps are:

[0030] First mix 1mol phenol and 1.05mol 2-bromoethanol and dissolve in 150mL dimethylformamide, then add 1.5mol potassium carbonate and stir evenly, heat the solution to 60°C and react for 5h; after the reaction is completed, add 600mL distilled water and stir evenly , and then separate the solution to remove the lower layer, and the separated lower layer solution is heated to 180°C to evaporate the residual dimethylformamide in the solution; then the solution is cooled to 40°C, and 0.33mol polyphosphoric acid (wherein n is 3), heated up to 60°C under stirring, then added 1.65g zeolite molecular sieve, reacted for 0.5h; continued to add 0.033mol P 2 o 5 Stir evenly and react for another 2 hours; after the above reaction is completed, add distilled water with a total volume of 3% of the solution and hydrolyze at 60°C for 1 hour t...

Embodiment 2

[0032] A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant of the present embodiment, its steps are:

[0033] First mix 1mol phenol and 1.15mol 2-bromoethanol and dissolve in 250mL dimethylformamide, then add 1.2mol potassium carbonate and stir evenly, heat the solution to 80°C, and react for 7 hours; after the reaction is completed, add 600mL distilled water and stir evenly , and then separate the lower layer solution, the separated lower layer solution is warming up to 180°C to evaporate the residual dimethylformamide in the solution; the temperature is lowered to 40°C, and 0.50mol polyphosphoric acid (wherein n is 5) is added to the solution, Heat up to 80°C under stirring, then add 5g of activated carbon, react for 2h; continue to add 0.1mol P 2 o 5 Stir evenly and react for another 4 hours; after the above reaction is completed, add distilled water with a total volume of 15% of the solution and hydrolyze at 80°C for 3 hours t...

Embodiment 3

[0035] A kind of preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant of the present embodiment, its steps are:

[0036] First mix 1mol phenol and 1.1mol 2-bromoethanol and dissolve in 200mL dimethylformamide, then add 1.5mol potassium carbonate and stir evenly, heat the solution to 80°C, and react for 6h; after the reaction is completed, add 600mL distilled water and stir evenly , and then separate the solution to remove the lower layer, and the separated lower layer solution is heated to 180°C to evaporate the residual dimethylformamide in the solution; the temperature is lowered to 40°C, and 0.5mol polyphosphoric acid (wherein n is 5) is added to the solution, Heat up to 80°C under stirring, then add 5g of activated carbon, react for 2h; continue to add 0.08mol P 2 o 5 Stir evenly and react for another 4 hours; after the above reaction is completed, add distilled water with 10% of the total volume of the solution and hydrolyze it at 70°C ...

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Abstract

The invention discloses a preparation method of ethylene glycol phenyl ether phosphoric acid monoester surfactant, which belongs to the technical field of surfactants. The preparation method of the present invention is: mix and dissolve phenol and 2-bromoethanol in dimethylformamide, then add potassium carbonate and stir evenly, add distilled water after the reaction, and heat the lower layer solution to 160-180°C to evaporate the solution Residual dimethylformamide; add polyphosphoric acid to the solution, heat up to 60-80°C under stirring, then add 1.65-5g of catalyst, add P2O5 after the reaction and stir evenly, and then add 3% to 3% of the total volume of the solution after the reaction 15% distilled water is hydrolyzed at 60-80°C for 1-3 hours to obtain ethylene glycol phenyl ether phosphate monoester surfactant. The conversion rate of the ethylene glycol phenyl ether phosphoric acid monoester prepared by the invention is high, and the monoester content thereof is as high as 86% to 96%. The surfactant has extremely strong alkali resistance and has excellent permeability at the same time.

Description

technical field [0001] The invention relates to the technical field of surfactants, in particular to a preparation method of ethylene glycol phenyl ether phosphate monoester surfactant. Background technique [0002] Phosphate esters are highly flexible surfactants with many excellent properties for a wide range of applications. Compared with other surfactants, the most important feature of phosphate esters is their stability and solubility in alkaline solutions. They have excellent solubilization, wetting, emulsification, and decontamination capabilities, so they are widely used in emulsion polymerization, textiles, etc. Printing and dyeing auxiliaries, industrial cleaning agents, metal surface treatment and other fields. The stability of phosphate esters in high alkali makes them suitable for household and industrial cleaning products, especially as raw materials for high alkali concentrated cleaners. [0003] Table 1 [0004] [0005] It can be seen from Table 1 that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F17/14B01F17/42C07F9/09C09K23/14C09K23/42
Inventor 高学频周浩胡承亮张永海戴恒陶李路
Owner 马鞍山市恺鸾鑫实业有限责任公司