Preparation method of ethylene glycol monophenyl ether phosphomonoester 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 size, easy mass production, alkali resistance and permeability improvement effect

Active Publication Date: 2015-11-25
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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  • Preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant
  • Preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant
  • Preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant

Examples

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Effect test

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 1 mol of phenol and 1.05 mol of 2-bromoethanol and dissolve in 150 mL of dimethylformamide, then add 1.5 mol of potassium carbonate and stir evenly, heat the solution to 60°C, and react for 5 hours; after the reaction is completed, add 600 mL of distilled water and stir evenly, Then separate the solution to remove the lower layer, and the separated lower layer solution is heated up 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 to 60°C under stirring, then added 1.65g zeolite molecular sieve, reacted for 0.5h; continued to add 0.033molP 2 o 5 Stir evenly and react for another 2 hours; after the above reaction is completed, add distilled water with 3% of the total volume of the solution and hydroly...

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 1 mol of phenol and 1.15 mol of 2-bromoethanol and dissolve in 250 mL of dimethylformamide, then add 1.2 mol of potassium carbonate and stir evenly, raise the temperature of the solution to 80°C, and react for 7 hours; after the reaction is completed, add 600 mL of distilled water and stir evenly, 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 0.50 mol of polyphosphoric acid (wherein n is 5) is added to the solution, and stirred Lower the temperature to 80°C, then add 5g of activated carbon, react for 2h; continue to add 0.1molP to the solution 2 o 5 Stir evenly and react for another 4 hours; after the above reaction is completed, add distilled w...

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 1 mol of phenol and 1.1 mol of 2-bromoethanol and dissolve in 200 mL of dimethylformamide, then add 1.5 mol of potassium carbonate and stir evenly, raise the temperature of the solution to 80°C, and react for 6 hours; after the reaction is completed, add 600 mL of distilled water and stir evenly, 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 0.5 mol of polyphosphoric acid (wherein n is 5) is added to the solution, and stirred Lower the temperature to 80°C, then add 5g of activated carbon, react for 2h; continue to add 0.08molP to the solution 2 o 5 Stir evenly and react for another 4 hours; after the above reaction is completed, add distilled wa...

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Abstract

The invention discloses a preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant and belongs to the technical field of surfactant. The preparation method disclosed by the invention comprises the steps of mixing phenol with 2-bromoethanol, dissolving the mixture in dimethylformamide, then adding and uniformly agitating potassium carbonate for reaction, adding distilled water to separate liquid, and increasing the temperature of solution at a lower layer to 160 to 180 DEG C to remove residual dimethylformamide in the solution; then adding polyphosphoric acid into the solution, agitating the solution and increasing the temperature to 60 to 80 DEG C, then adding 1.65 to 5g of catalyst for reaction, adding and uniformly agitating P2O5 for reaction, and adding distilled water with volume of 3 to 5 percent of total volume of the solution to perform hydrolysis for 1 to 3h at 60 to 80 DEG C to obtain the ethylene glycol monophenyl ether phosphomonoester surfactant. The preparation method of ethylene glycol monophenyl ether phosphomonoester surfactant has the advantages that the conversion rate of the prepared ethylene glycol monophenyl ether phosphomonoester is high, the monoester content highly reaches 86 to 86 percent, the alkali resistance of the surfactant is extremely high and the permeability is excellent.

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 Applications(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
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