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Preparation method of high-content tristyrylphenol polyoxyethylene ether ammonium sulfate, and product thereof

A technology of tristyryl phenol and polyoxyethylene ether, which is applied in the field of preparation of high-content tristyryl phenol polyoxyethylene ether ammonium sulfate, and can solve the problems of less post-treatment, difficult reaction control, and high salt content in products , to achieve the effect of increasing active content and good product color

Pending Publication Date: 2021-09-14
无锡颐景丰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sulfation process of oleum is mature and easy to control, but the product has high salt content and produces a large amount of waste acid, causing great environmental pollution; sulfur trioxide is used as a sulfation reagent, and the reaction is too active and difficult to control; chlorosulfonic acid has hydrogen chloride in the reaction Production, easy to corrode equipment, high requirements on equipment; sulfamic acid is a mild sulfating reagent, no three wastes, one-step direct synthesis to obtain the target product, less post-processing, environmentally friendly and economical
But sulfamic acid method has an obvious shortcoming, and sulfamic acid reaction is gentle, and ammonium sulfate content is not enough, raises temperature, and product color is not good again

Method used

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  • Preparation method of high-content tristyrylphenol polyoxyethylene ether ammonium sulfate, and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1. In a 500 ml reaction flask, add 370 grams of 600#B, add 3.5 grams of cyanamide, then add 30 grams of sulfamic acid, and raise the temperature to 90°C for 8 hours. The tristyrylphenol polyoxyethylene ether ammonium sulfate of 600#B, m in its structural formula is 20.

[0031] Step 2, adding monoethanolamine to adjust the pH to 7 to obtain a light yellow product with an anionic active substance content of 91%.

Embodiment 2

[0033] Step 1. In a 500 milliliter reaction flask, add 370 grams of 600#C, add 3.5 grams of cyanamide, then add 24 grams of sulfamic acid, and raise the temperature to 100 ° C for 5 hours. The tristyrylphenol polyoxyethylene ether ammonium sulfate of 600#C, m in its structural formula is 24.

[0034] Step 2, adding diethanolamine to adjust the pH to 7 to obtain a pale yellow product with an anionic active substance content of 90%.

Embodiment 3

[0036] In step 1, 500 milliliters of reaction flasks, add 380 grams of 600#D, add 1.5 grams of guanidine carbonate, then add 20 grams of sulfamic acid, raise the temperature to 110 DEG C and react for 3 hours. The tristyrylphenol polyoxyethylene ether ammonium sulfate of 600#D, m in its structural formula is 30.

[0037] Step 2, adding triethanolamine to adjust the pH to 7 to obtain a light yellow product with an anionic active substance content of 90%.

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Abstract

The invention relates to a preparation method of high-content tristyrylphenol polyoxyethylene ether ammonium sulfate and a product thereof. The preparation method comprises the following steps: step 1, subjecting tristyrylphenol polyoxyethylene ether to reacting with sulfamic acid under the action of a catalyst at a set temperature; and step 2, adjusting a pH value to 7 to obtain the product. The method overcomes defects in the prior art, sulfamic acid is used for reacting under the action of the catalyst, and the anionic active matter content of the product can be greatly improved. The obtained product is faint yellow, and the color of the product is better.

Description

technical field [0001] The present invention relates to the preparation method of chemical product, be specifically related to a kind of preparation method and product of high-content tristyrylphenol polyoxyethylene ether ammonium sulfate. Background technique [0002] Tristyrylphenol polyoxyethylene ether ammonium sulfate is an important anionic surfactant, which has good resistance to hard water and biodegradability, and is currently widely used in pesticides, textiles and other fields. [0003] At present, the synthesis of tristyrylphenol polyoxyethylene ether ammonium sulfate is usually the direct reaction of tristyrylphenol polyoxyethylene ether with a sulfating reagent, which includes fuming sulfuric acid, sulfur trioxide, chlorosulfonic acid, amino Sulfonic acid etc. The sulfation process of oleum is mature and easy to control, but the product has high salt content and produces a large amount of waste acid, causing great environmental pollution; sulfur trioxide is us...

Claims

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Application Information

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IPC IPC(8): C08G65/326
CPCC08G65/326
Inventor 张前军万秀琴
Owner 无锡颐景丰科技有限公司
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