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Tristyrylphenol block polyether, sulfate ammonium salt and preparation method thereof

A technology of tristyryl phenol and block polyether, applied in the field of surfactants, can solve the problems of great influence on product quality, great influence on reaction temperature, wide molecular weight distribution, etc., achieve light product color and reduce Kraft point , the effect of narrow molecular weight distribution

Pending Publication Date: 2021-08-06
ZHEJIANG HUANGMA TECH +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

), generally prepared by using the same catalyst distribution to react with ethylene oxide and propylene oxide, but its molecular weight distribution is wide, and the reaction temperature has a great influence on it
And in the synthesis process of tristyrylphenol polyether sulfate ammonium salt, the reaction of sulfation reagent sulfamic acid is relatively mild, and the operation is simple, but the relative esterification rate is low, and the process conditions have a greater impact on product quality, and the product will Problems such as high viscosity and deep color appear

Method used

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  • Tristyrylphenol block polyether, sulfate ammonium salt and preparation method thereof
  • Tristyrylphenol block polyether, sulfate ammonium salt and preparation method thereof
  • Tristyrylphenol block polyether, sulfate ammonium salt and preparation method thereof

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preparation example Construction

[0032] Such as figure 1 Shown, the preparation method of tristyrylphenol block polyether of the present invention comprises the following steps:

[0033] Step S101. Put catalyst a and tristyryl phenol into a glass-sealed reactor, replace nitrogen (preferably replace nitrogen more than 2 times), vacuumize, and pass through ethylene oxide to react after heating up and dehydrating to obtain a reaction solution A; wherein, the temperature of heating and dehydration is 110°C, and the dehydration time is 1h, and ethylene oxide is slowly introduced at 110°C to 120°C, until the reaction pressure does not drop significantly after adding, the material is discharged to obtain the reaction solution A; And the dosage of catalyst a is preferably 3‰ of the total mass of tristyrylphenol and ethylene oxide.

[0034] Step S102. The reaction solution A is treated by an adsorption method, specifically: adding an adsorbent, diatomaceous earth, phosphoric acid and deionized water to the reaction s...

Embodiment 1

[0047] First, put 1.76g KOH and 282g tristyrylphenol into a 2.5L glass-sealed reactor, and replace N three times. 2 Finally, vacuumize and heat up to 110°C for 1 hour of dehydration; then slowly feed 306g of ethylene oxide at 110°C to 120°C for reaction until the reaction pressure does not drop significantly, stop the reaction, and discharge the material into a 2L four-necked flask; Then add adsorbent, diatomaceous earth, phosphoric acid and deionized water, gradually increase the temperature and vacuum dehydration, vacuum dehydration at 110°C for 1.5h, and filter while hot; finally pour the filtrate and 0.2g of DMC catalyst into a clean 2.5 L glass-sealed reactor, and replaced N 3 times 2 Then vacuumize to the highest level, stop vacuuming after heating up to 100°C, start to slowly feed 1412g of propylene oxide to react, control the reaction temperature between 110°C and 120°C, until the reaction pressure does not drop significantly, stop the reaction, discharge, A tristyryl...

Embodiment 2

[0049] First, put 2.34g KOH and 268g tristyrylphenol into a 2.5L glass-sealed reactor, and replace N three times. 2 Finally, vacuumize and heat up to 110°C for 1 hour of dehydration; then slowly feed 512g of ethylene oxide at 110°C to 120°C for reaction until the reaction pressure does not drop significantly, stop the reaction, and discharge the material into a 2L four-necked flask; Then add adsorbent, diatomaceous earth, phosphoric acid and deionized water, gradually increase the temperature and vacuum dehydration, vacuum dehydration at 110°C for 1.5h, and filter while hot; finally pour the filtrate and 0.2g of DMC catalyst into a clean 2.5 L glass-sealed reactor, and replaced N 3 times 2 Then vacuumize to the highest level, stop vacuuming after heating up to 100°C, start to slowly feed 1150g of propylene oxide to react, control the reaction temperature between 110°C and 120°C, until the reaction pressure does not drop significantly, stop the reaction, discharge, A tristyryl...

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Abstract

TThe invention relates to tristyrylphenol block polyether, sulfate ammonium salt and a preparation method thereof. The tristyrylphenol block polyether is prepared from tristyrylphenol, ethylene oxide, propylene oxide, a catalyst a and a catalyst b, and the structural formula of the tristyrylphenol block polyether is as follows: m is 10-30, and n is 25-35. According to the present invention, the prepared sulfate ammonium salt has characteristics of narrow molecular weight distribution, low raw material residue and wide application range, and the prepared sulfate ammonium salt has characteristics of low dynamic viscosity, high active matter content, light product color and close-to-neutral pH value, can well meet the requirements of high-end users and use under harsh conditions, and further has effects of permeation, wetting, dispersion and the like.

Description

technical field [0001] The invention belongs to the technical field of surfactants, and in particular relates to a tristyrylphenol block polyether, ammonium sulfate and a preparation method thereof. Background technique [0002] Sulfate-type anionic surfactants have good foaming power, wetting power, emulsifying power and detergency, and can be stable in hard water, and have good washing effect at low temperature. They are widely used in detergents and textile aids. Sulfate surfactants are an essential ingredient in hard surface cleaners such as dishwashing liquids and carpet and upholstery cleaners. The hydrophilic group of the sulfate ester surfactant is connected to the hydrophobic group through the C-O-S bond, and the additional oxygen makes the water solubility better, but it is easily hydrolyzed in acidic medium, which limits its application. [0003] However, the applicant has found that: existing tristyrylphenol block polyethers on the market (the block polyethers a...

Claims

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Application Information

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IPC IPC(8): C08G65/28C08G65/334
CPCC08G65/2612C08G65/2648C08G65/2663C08G65/3348
Inventor 秦飞金一丰赵炯烽王胜利王俊
Owner ZHEJIANG HUANGMA TECH
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