Preparation method for phosphate ester

A phosphate ester and phosphorylation technology, which is applied in chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, organic chemistry, etc., and can solve problems such as deepening chromaticity

Active Publication Date: 2019-06-14
SHANGHAI DUOLUN CHEM
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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 the problems such as chromaticity deepening of phosphoric acid esters existing in the prior art when used under high temperature conditions, and a new preparation method of phosphoric acid esters is provided. Advantages of color stability

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  • Preparation method for phosphate ester

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Experimental program
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Effect test

Embodiment 1

[0044] 1. Phosphate ester preparation

[0045] The difference with the comparative example is that step (2) adds a stabilizer, and the stabilizer is sodium phosphite.

[0046] Add 200.00g (1.08mol) of n-dodecyl alcohol into a 500ml three-neck flask, raise the temperature and turn on the stirring switch; control the temperature at 52±2°C, and add 68.16g of phosphorus pentoxide (0.96mol in terms of phosphoric acid) within half an hour; Nitrogen was filled, and the temperature was kept at 70°C for 2 hours, then 2.68g of pure water and 1.10g of sodium phosphite were added, the temperature was controlled at 70°C, and the temperature was kept at this temperature for 4 hours to obtain the phosphate ester product A. The chromaticity obtained by analyzing the method described in "GB3143-82 Liquid Chemical Product Color Determination Method (Hazen Unit—Platinum-Cobalt Color)" is 38.

[0047] 2. Evaluation of color stability at high temperature

[0048] Add 100 grams of the above-menti...

Embodiment 2

[0050] 1. Phosphate ester preparation

[0051] The difference with the comparative example is that step (2) adds a stabilizer, and the stabilizer is sodium stearate.

[0052] Add 200.00g (1.08mol) of n-dodecyl alcohol into a 500ml three-neck flask, raise the temperature and turn on the stirring switch; control the temperature at 52±2°C, and add 68.16g of phosphorus pentoxide (0.96mol in terms of phosphoric acid) within half an hour; Nitrogen was filled, and the temperature was kept at 70°C for 2 hours, then 2.68g of pure water and 1.10g of sodium stearate were added, the temperature was controlled at 70°C, and the temperature was kept at this temperature for 4 hours to obtain the phosphate ester product A. The chromaticity obtained by analyzing the method described in "GB3143-82 Liquid Chemical Product Color Determination Method (Hazen Unit—Platinum-Cobalt Color)" is 41.

[0053] 2. Evaluation of color stability at high temperature

[0054] Add 100 grams of the above-mention...

Embodiment 3

[0056] 1. Phosphate ester preparation

[0057] The difference with the comparative example is that step (2) adds a stabilizer, and the stabilizer is sodium borate.

[0058] Add 200.00g (1.08mol) of n-dodecyl alcohol into a 500ml three-neck flask, raise the temperature and turn on the stirring switch; control the temperature at 52±2°C, and add 68.16g of phosphorus pentoxide (0.96mol in terms of phosphoric acid) within half an hour; Nitrogen was filled, and the temperature was kept at 70°C for 2 hours, then 2.68g of pure water and 1.10g of sodium borate were added, the temperature was controlled at 70°C, and the temperature was kept at this temperature for 4 hours to obtain the phosphate ester product A. The chromaticity obtained by analyzing the method described in "GB3143-82 Liquid Chemical Product Color Determination Method (Hazen Unit—Platinum-Cobalt Color)" is 41.

[0059] 2. Evaluation of color stability at high temperature

[0060] Add 100 grams of the above-mentioned p...

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Abstract

The invention relates to a preparation method for phosphate ester and aims to solve the problem of deepening color in use under high temperature. The preparation method for phosphate ester comprises the following steps: (1) acquiring a reaction mixture I from esterification reaction of phosphorylation agent and active hydroxy compound; (2) acquiring the phosphate ester product through hydrolysis reaction of water and reaction mixture I under the existence of stabilizer, or acquiring the phosphate ester product by mixing stabilizer with the product acquired after the hydrolysis reaction of water and reaction mixture I. According to the technical scheme, the stabilizer comprises at least one of alkali metal phosphite, alkali metal fatty acid salt and alkali metal borate, so that the technical problem can be solved and the preparation method can be used for industrial production of phosphate ester.

Description

technical field [0001] The invention belongs to the field of preparation methods of phosphate esters. Background technique [0002] Phosphate ester surfactants, because of their excellent wetting, cleaning, solubilizing, emulsifying and dispersing properties, good compatibility, easy biodegradability, low irritation and superior to general anionic surfactants Alkali resistance, electrolyte resistance and antistatic properties, especially the characteristics of being easy to dissolve in alkaline solutions, and stable without delamination and precipitation, have gradually become an important part of anionic surfactants. It is widely used in industrial fields such as textiles, printing and dyeing, plastics, papermaking, leather, and daily chemicals, and it is an indispensable additive in metal lubricants, pesticides, and synthetic resins. [0003] With the development of various industries in the direction of differentiation, higher requirements are put forward for the stabili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/11
Inventor 徐兴建钟敏李翔张怀哲陈静
Owner SHANGHAI DUOLUN CHEM
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