Guerbet anion surfactant, and its preparing method and use

A technology of surfactants and anions, applied in the direction of surface active detergent compositions, chemical instruments and methods, transportation and packaging, etc., can solve problems such as Guerbet anionic surfactants not mentioned

Inactive Publication Date: 2007-01-10
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] CN1170426A discloses the detergent composition of Guerbet nonionic surfactant, but does not mention Guerbet anionic surfactant

Method used

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  • Guerbet anion surfactant, and its preparing method and use
  • Guerbet anion surfactant, and its preparing method and use
  • Guerbet anion surfactant, and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Preparation of Guerbet tetradecyl alcohol polyoxyethylene ether sodium sulfonate

[0052] (a) Bromination of Guerbet Tetradecyl Alcohol

[0053] In the 250 milliliters three-neck flasks that oil bath, reflux condenser and stirrer are installed, add hydrobromic acid and concentrated sulfuric acid, then drop into Guerbet Tetradecyl Alcohol to form reaction system; Wherein the reaction system contains 0.4 mole of Hydrobromic acid, 0.2 mole of concentrated sulfuric acid, 0.25 mole of Guerbet tetradecyl alcohol; heating and reflux for 7 hours, after cooling, the reaction mixture was washed with water, the organic phase was separated, and then water and a concentration of 5wt% sodium carbonate aqueous solution Wash the organic phase. Then dry with anhydrous calcium chloride. After filtering, the filtrate was distilled under reduced pressure, and fractions were collected under the condition of temperature of 170°C and pressure of 2.4kPa. The product is Guerbet...

Embodiment 2

[0059] Embodiment 2: Preparation of Guerbet tetradecyl polyoxyethylene ether carboxylate sodium

[0060] (a) Bromination of Guerbet Tetradecyl Alcohol

[0061] In the 250 milliliters three-neck flasks that oil bath, reflux condenser and stirrer are installed, add hydrobromic acid and concentrated sulfuric acid, then drop into Guerbet Tetradecyl Alcohol to form reaction system; Wherein the reaction system contains 0.4 mole of Hydrobromic acid, 0.2 mole of concentrated sulfuric acid, 0.25 mole of Guerbet tetradecyl alcohol; heating and reflux for 7 hours, after cooling, the reaction mixture was washed with water, the organic phase was separated, and then water and a concentration of 5wt% sodium carbonate aqueous solution Wash the organic phase. Then dry with anhydrous calcium chloride. After filtering, the filtrate was distilled under reduced pressure, and fractions were collected at a temperature of 150° C. and a pressure of 2.4 kPa. The product is Guerbet tetradecyl bromide...

Embodiment 3

[0067] The synthesis of embodiment 3 Guerbet tetradecyl polyoxyethylene ether sulfate sodium

[0068] (a) Bromination of Guerbet Tetradecyl Alcohol

[0069] In the 250 milliliters three-neck flasks that oil bath, reflux condenser and stirrer are installed, add hydrobromic acid and concentrated sulfuric acid, then drop into Guerbet Tetradecyl Alcohol to form reaction system; Wherein the reaction system contains 0.4 mole of Hydrobromic acid, 0.2 mole of concentrated sulfuric acid, 0.25 mole of Guerbet tetradecyl alcohol; heating and reflux for 7 hours, after cooling, the reaction mixture was washed with water, the organic phase was separated, and then water and a concentration of 5wt% sodium carbonate aqueous solution Wash the organic phase. Then dry with anhydrous calcium chloride. After filtering, the filtrate was distilled under reduced pressure, and fractions were collected at a temperature of 150° C. and a pressure of 2.4 kPa. The product is Guerbet tetradecyl bromide. ...

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PUM

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Abstract

The invention relates to Guerbet cathode surface activating agent and the manufacture method and the application. Guerbet (carbon atom quantity is 12-20) mellow would form a cathode surface activating agent after a series of reaction. The agent has 12-20 carbon quantity hydrophobic group and different quantities C2H40 group. The feature of hydrophobic group is that Y shaped molecular structure is formed from the beta carbon atom with alkyl substituent. The hydrophilic group is sulphoacid radical, sulfate radical or alkali metal of carboxylic acid radical, alkali earth metal or ammonium salt. The good performance surface activating agent system would be gained after taking research to the aqueous solution, simulating oil, and the interfacial tension between raw oil.

Description

technical field [0001] The invention belongs to the field of high-efficiency surfactants, in particular to Guerbet anionic surfactants and their preparation methods and applications. Background technique [0002] Long-chain fatty alcohols with more carbon atoms are very useful materials, which can be directly used as nonionic surfactants in emulsification industry, cosmetics, deperspirants, defoggers and antifreeze agents, and can also be obtained from these fatty alcohols Started to prepare a series of anionic surfactants and plasticizers. Guerbet alcohol is a fatty alcohol with twice the number of carbon atoms synthesized by the Guerbet reaction of alcohols with low carbon atoms. It has a branched chain structure and is connected to the β- The carbon atoms bear alkyl substituents, forming a "Y"-shaped molecular structure, in which the number of carbon atoms on one branch is 2 more than that on the other branch. [0003] Due to its high molecular weight and branched chain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72B01F17/42C09K23/42
Inventor 赵濉祝荣先靳志强俞稼镛
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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