Method for synthesizing isomerous tridecanol polyoxyethylene ether

A technology of isotridecanol and polyoxyethylene ether, which is applied in the field of organic compound synthesis, can solve the problems of high free alcohol content, wide molecular weight distribution and poor product performance in finished products, and achieves low equipment requirements, mild reaction conditions, Environmentally friendly effect

Active Publication Date: 2011-04-13
ZHEJIANG HUANGMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing synthetic methods of isomerized tridecyl alcohol polyoxyethylene ether are all strong alkali catalyst one-step method, the finished product free alcohol content that obtains is high, and the performance of product is poor, and molecular weight distribution is wide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 600g of isomeric tridecyl alcohol and 1.1g of BF to the reaction kettle 3 , the temperature was raised to 100°C, 264g of ethylene oxide was added, and after the reaction was complete at 150°C, the temperature was lowered to 80°C and discharged.

Embodiment 2

[0014] Add 278g of the product obtained in Example 1 and 1.1g of solid KOH into the reaction kettle, raise the temperature to 130°C, vacuum dehydrate for 1 hour, add 1032g of ethylene oxide, and after the reaction is complete at 150°C, cool down to 80°C and discharge .

Embodiment 3

[0016] Add the product 200g that embodiment 1 makes and the mixture of 1.1g powdery sodium methylate and NaOH (according to 1: 1 ratio batching) in reactor, be warming up to 130 ℃, after vacuum dehydration 1 hour, add ethylene oxide 850g , after the reaction is complete at 150°C, cool down to 80°C and discharge.

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Abstract

The invention relates to a synthetic method of isomeric tridecanol polyoxyethylene ether, belonging to the organic compound synthesis technical field, which uses the materials of isometric tridecanol and ethylene oxide. The synthetic method is characterized in that: firstly, the polymerization reaction is carried out with the boron trifluoride catalyst, and then the isomeric tridecanol polyoxyethylene ether is obtained by the polymerization reaction carried out with the strong alkali catalyst; wherein, the addition of the boron trifluoride adopted in the reaction is 0.1 to 0.6 percent of the weight of the isometric tridecanol, the strong alkali catalyst is one of or the mixture of solid sodium methylate, methanol solution of sodium methylate, KOH and NaOH, the addition of the strong alkali catalyst is 0.05 to 0.2 percent of the weight of isomeric tridecanol polyoxyethylene ether. The synthetic method of isomeric tridecanol polyoxyethylene ether has the advantages that: the synthetic method adopts a two-step reaction technical proposal that: the polymerization reaction is carried out with the boron trifluoride catalyst at first, and then the polymerization reaction is carried out with the strong alkali catalyst, so the isomeric tridecanol polyoxyethylene ether has mild reaction conditions, high yield, no formation of impurities and environment friendly performance.

Description

technical field [0001] The invention relates to a method for synthesizing isomeric tridecanol polyoxyethylene ether, which belongs to the technical field of organic compound synthesis. Background technique [0002] Isogenic tridecyl alcohol polyoxyethylene ether is a very good leveling agent for dyes. It has excellent emulsifying and leveling properties, good penetrating properties, and can be used as emulsifier and penetrating agent. The existing synthesizing methods of isomeric tridecyl alcohol polyoxyethylene ether are all one-step method with strong base catalyst, and the obtained finished product has high mobile alcohol content, poor product performance and wide molecular weight distribution. Contents of the invention [0003] The purpose of the present invention is to provide a synthetic method of isomeric tridecanol polyoxyethylene ether with reasonable process and good usability. [0004] The present invention is the synthesis method of polyoxyethylene ether of is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/28
Inventor 王伟松王新荣孟照平马定连罗青
Owner ZHEJIANG HUANGMA TECH
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