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Preparation process of 2-hydroxy-3-chloropropyl sodium phosphate

Sodium chloropropionate and the preparation technology are applied in the direction of organic phosphorus compounds, compounds of group 5/15 elements of the periodic table, chemical instruments and methods, etc., which can solve the problems of poor quality and low yield, and achieve Low energy consumption at reaction temperature, high yield and safe process

Inactive Publication Date: 2019-03-08
RUGAO WANLI CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The molecular structure of sodium 2-hydroxy-3-chloropropanophosphate contains not only hydrophilic phosphate groups, but also highly active halogen atoms and hydroxyl groups. The halogen atoms are prone to reactions such as detachment and substitution, so it is used as An important functional substance is an important functional monomer in the synthetic polymer industry, and can also be used as an organic chemical intermediate, mainly for the preparation of surfactants, but the yield obtained by synthesis is low and the quality is not good

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  • Preparation process of 2-hydroxy-3-chloropropyl sodium phosphate

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Embodiment 1

[0016] A preparation process of sodium 2-hydroxy-3-chloropropanophosphate, through the steps of preparation of raw materials, reaction, cooling and precipitation, and drying, the preparation of 2-hydroxy-3-sodium chloropropanophosphate is completed; the specific steps are as follows:

[0017] (1) Preparation of raw materials: select sodium dihydrogen phosphate and epichlorohydrin as raw materials;

[0018] (2) Reaction: Weigh 48g of sodium dihydrogen phosphate, heat to dissolve with 100ml of deionized water, cool to room temperature, then put it into a 1000ml three-necked flask, and slowly drop 20ml of epichlorohydrin into the three-necked flask , vigorously stirred, and then reacted until there were no oil droplets, the reaction was completed, the reaction temperature was 18 degrees Celsius, the dripping time of epichlorohydrin was 30min, and the stirring time was 2h;

[0019] (3) Cooling and precipitation: the reactant is poured in a 1000ml flask, cooled in an ice-water bath...

Embodiment 2

[0022] A preparation process of sodium 2-hydroxy-3-chloropropanophosphate, through the steps of preparation of raw materials, reaction, cooling and precipitation, and drying, the preparation of 2-hydroxy-3-sodium chloropropanophosphate is completed; the specific steps are as follows:

[0023] (1) Preparation of raw materials: select sodium dihydrogen phosphate and epichlorohydrin as raw materials;

[0024] (2) Reaction: Weigh 50g of sodium dihydrogen phosphate, heat to dissolve with 100ml of deionized water, cool to room temperature, then put it into a 1000ml three-necked flask, and slowly drop 25ml of epichlorohydrin into the three-necked flask , vigorously stirred, and then reacted until there were no oil droplets, the reaction was completed, the reaction temperature was 30 degrees Celsius, the dripping time of epichlorohydrin was 40min, and the stirring time was 2.5h;

[0025] (3) Cooling and precipitation: the reactant is poured in a 1000ml flask, cooled in an ice-water ba...

Embodiment 3

[0028] A preparation process of sodium 2-hydroxy-3-chloropropanophosphate, through the steps of preparation of raw materials, reaction, cooling and precipitation, and drying, the preparation of 2-hydroxy-3-sodium chloropropanophosphate is completed; the specific steps are as follows:

[0029] (1) Preparation of raw materials: select sodium dihydrogen phosphate and epichlorohydrin as raw materials;

[0030] (2) Reaction: Weigh 49g of sodium dihydrogen phosphate, heat to dissolve with 100ml of deionized water, cool to room temperature, then put it into a 1000ml three-necked flask, and slowly drop 23ml of epichlorohydrin into the three-necked flask , vigorously stirred, and then reacted until there were no oil droplets, the reaction was completed, the reaction temperature was 23 degrees Celsius, the dripping time of epichlorohydrin was 35min, and the stirring time was 2.3h;

[0031] (3) Cooling and precipitation: the reactant is poured in a 1000ml flask, cooled in an ice-water ba...

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Abstract

The invention discloses a preparation process of 2-hydroxy-3-chloropropyl sodium phosphate. The specific steps are as follows: choosing sodium dihydrogen phosphate and epichlorohydrin as the raw materials; weighing 48-50 g of sodium dihydrogen phosphate, heating and dissolving in 100 ml of deionized water, cooling to the room temperature, putting in a 1000 ml flask with three necks, slowly dropping 20-25 ml of epichlorohydrin into the flask with three necks, mixing intensely, then reacting until no oily liquid drop is formed, finishing the reaction; pouring a reactant into a 1000 ml flask, cooling in a cooling water bath, precipitating a white crystal; dehumidifying, filtering, drying to obtain 58-60 g of 2-hydroxy-3-chloropropyl sodium phosphate, and finishing the preparation of the 2-hydroxy-3-chloropropyl sodium phosphate. The preparation process is simple, the convenience of the operation is high, the reaction materials are easy to get, the reaction temperature is reduced, the energy consumption of the reaction temperature is lower, and the process is safe and green; in addition, the production process is stable and reliable, and the yield is up to 97%.

Description

technical field [0001] The invention relates to a preparation process of chemical products, in particular to a preparation process of sodium 2-hydroxy-3-chloropropanophosphate. Background technique [0002] The molecular structure of sodium 2-hydroxy-3-chloropropanophosphate contains not only hydrophilic phosphate groups, but also highly active halogen atoms and hydroxyl groups. The halogen atoms are prone to reactions such as detachment and substitution, so it is used as An important functional substance is an important functional monomer in the synthetic polymer industry, and can also be used as an organic chemical intermediate, mainly for the preparation of surfactants, but the yield obtained by synthesis is low and the quality is not good. Contents of the invention [0003] The object of the present invention is to provide a preparation process of sodium 2-hydroxy-3-chloropropionate with simple preparation process, high quality and high yield. [0004] In order to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/09
CPCC07F9/091
Inventor 张捷
Owner RUGAO WANLI CHEM IND