Method and equipment for preparing fatty alcohol (ether) phosphate

A technology for manufacturing equipment and manufacturing methods, which is applied in chemical instruments and methods, phosphorus organic compounds, compounds of Group 5/15 elements of the periodic table, etc., and can solve the problem of deepening product color, low product purity, and inability to disperse well, etc. problem, to achieve the effect of fast reaction speed and high reaction conversion rate

Active Publication Date: 2010-09-22
SUZHOU ELECO CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1) Due to the low reactivity of orthophosphoric acid, the reaction conversion rate is not high when orthophosphoric acid is used alone, and the water generated during the condensation into esters needs to be evaporated at high temperature and high vacuum, which will lead to a deeper color of the product
[0011] 2) Phosphorus pentoxide has high reactivity, but because it is a solid, the reaction with fatty alcohols is not a homogeneous reaction under reaction conditions, and the reaction liquid is viscous in the reaction with longer carbon chain fatty alcohols, so that it cannot be well decentralized participation in response
However, this mixed phosphorylating agent itself is relatively viscous, and it is still difficult to control its good reaction when added to a conventional reactor, resulting in low product purity and poor color.

Method used

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  • Method and equipment for preparing fatty alcohol (ether) phosphate
  • Method and equipment for preparing fatty alcohol (ether) phosphate
  • Method and equipment for preparing fatty alcohol (ether) phosphate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] as attached figure 1 As shown, 150 kg of lauryl alcohol is added into the equipment with agitator 6 and homogenizer 7 through the material inlet 1, and the heating jacket 5 is used to heat up to 40-45 ° C while stirring. Turn on the homogenizer 7, the rotating speed is controlled at 3000rpm, 30kg of phosphorus pentoxide is added in portions, and the adding speed is controlled at 30% of the total amount of phosphorus pentoxide per hour. After the addition, the temperature was raised to 100-105°C, and the reaction was continued for 3h. Then, it is cooled to 50-55°C under stirring with a stirrer, and the material is discharged to obtain lauryl phosphate. The test data are shown in Table 1. In this embodiment, the attached figure 2 And attached image 3 The equipment shown is produced.

Embodiment 2

[0042] as attached figure 1As shown, 150 kg of lauryl alcohol is added into the equipment with agitator 6 and homogenizer 7 through the material inlet 1, and the heating jacket 5 is used to heat up to 40-45 ° C while stirring. Turn on the homogenizer 7, the rotating speed is controlled at 3000rpm, 30kg of phosphorus pentoxide is evenly added, and the adding speed is controlled at 70% of the total amount of phosphorus pentoxide per hour. After the addition, the temperature was raised to 100-105°C, and the reaction was continued for 3h. Then, it is cooled to 50-55°C under stirring with a stirrer, and the material is discharged to obtain lauryl phosphate. The test data are shown in Table 1. In this embodiment, the attached figure 2 And attached image 3 The equipment shown is produced.

Embodiment 3

[0044] as attached figure 2 As shown, 150 kg of cetearyl alcohol is added into the equipment with the agitator 6 through the material inlet 1, and the heating jacket 5 is used to heat up to 80-85° C. while stirring. Turn on the homogenizer 7 outside the equipment, control the rotating speed at 1500rpm, and homogenize the material in the equipment through the homogenizer 7; and send the material homogenized by the homogenizer 7 back to the equipment through the pipeline, At the same time, 50kg of polyphosphoric acid is evenly added, and the rate of addition per hour is controlled at 70% of the total amount of polyphosphoric acid. After the addition, the temperature was raised to 135-140°C, and the reaction was continued for 3 hours. Then cool to 70-75°C and discharge under stirring to obtain cetearyl phosphate. The test data are shown in Table 1. In this embodiment, the attached figure 1 And attached image 3 The equipment shown is produced.

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Abstract

The invention relates to a method and equipment for preparing fatty alcohol (ether) phosphate, and relates to a method and equipment for preparing fatty alcohol (or polyoxyalkylene fatty alcohol) phosphate with high purity and excellent color and luster. In the preparation process, a reactor with a stirrer is adopted; and the reactor is provided with one or two kinds of equipment of a homogenizerand a circulating pump outside the reactor. The method comprises the following preparation processes of: adding one material in fatty alcohol (ether) and a mixture or a phosphorus acylating agent totally or in parts, performing homogenization or high-speed stirring at a reaction temperature, and simultaneously, quantitatively adding the other material in the fatty alcohol (ether) and the mixture or the phosphorus acylating agent into the equipment continuously or in parts for quick homodisperse to prepare the fatty alcohol (ether) phosphate with high purity and white color and luster.

Description

Technical field: [0001] The present invention relates to the manufacture method and equipment of aliphatic alcohol (or polyoxyalkylene fatty alcohol) phosphoric acid ester, particularly relate to the production of high-purity, white luster aliphatic alcohol (or polyoxyalkylene fatty alcohol) phosphoric acid ester Manufacturing methods and equipment. Background technique: [0002] Aliphatic alcohol (or polyoxyalkylene fatty alcohol) phosphate (hereinafter referred to as fatty alcohol (ether) phosphate) is a class of anionic surfactants that are widely used, involving fields such as chemical fiber, textile, leather, plastic , papermaking, detergents and cosmetics, etc. This kind of surfactant has many functional characteristics such as wetting, cleaning, solubilizing, emulsifying, lubricating, antirust, corrosion inhibiting, dispersing, chelating, antistatic and good biodegradability. [0003] Fatty alcohol (ether) phosphates are produced by the reaction of fatty alcohols or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/11C07F9/09
Inventor 陆军
Owner SUZHOU ELECO CHEM IND
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