Method for dispersing higher fatty alcohol mixture

A technology for higher fatty alcohols and mixtures, applied in foam dispersion/prevention, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of not easy to purchase, high price, and high raw material price

Inactive Publication Date: 2009-09-16
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

US5807502 introduces C 6-18 The reaction product of the addition of 1,2-diol and ethylene oxide is used as an emulsifier for emulsifying fatty alcohols. It is introduced that natural alcohols can be emulsified, but C in this method 6 -18 The price of 1,2-diol is very high, it is not easy to buy, and it is not suitab

Method used

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  • Method for dispersing higher fatty alcohol mixture
  • Method for dispersing higher fatty alcohol mixture
  • Method for dispersing higher fatty alcohol mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 150 parts of synthetic fatty alcohol, 80 parts of natural C14-16 fatty alcohol, 70 parts of solid paraffin, 9 parts of n-octanol polyoxyethylene ether (30), 6 parts of sodium cetyl diphenyl ether disulfonate, dodecane 6 parts of sodium base sulfate, mix and melt the above raw materials, stir and heat up to 85°C, slowly add 320 parts of water at 70°C to the above mixture, then let the above coarse emulsion pass through the colloid mill to the required particle size, and finally cool down to 35°C, and diluted with 430 parts of tap water to form a 30% emulsion, adding an acrylic thickener to adjust the viscosity of the emulsion to 430mPa·s.

Embodiment 2

[0039] 304 parts of synthetic fatty alcohol, 160 parts of natural stearyl alcohol, 180 parts of solid paraffin, 30 parts of n-octyl alcohol polyoxyethylene ether (40), 36 parts of sodium dodecylbenzenesulfonate, lauryl ether polyoxyethylene ether (6 ) 20 parts of sodium sulfate, mix and melt the above raw materials, stir and heat up to 90°C, slowly add 600 parts of water at 80°C to the above mixture, then let the above coarse emulsion pass through the colloid mill to the required particle size, and finally cool down to 40 ℃, and diluted with 1650 parts of tap water to a 20% emulsion, adding an acrylic thickener to adjust the viscosity of the emulsion to 460mPa·s.

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Abstract

The invention discloses a method for dispersing a higher fatty alcohol mixture, which provides a method for dispersing a mixture of natural fatty alcohol and synthol into water, and belongs to the technical field of fine chemical preparations. A higher fatty alcohol emulsion prepared by the method contains the following components: (1) 1 to 30 percent of synthesized higher fatty alcohol with carbon number of between 14 and 30; (2) 1 to 15 percent of C12-18 saturated natural higher fatty alcohol; (3) 1 to 15 percent of paraffin; (4) 0.1 to 5 percent of non-ionic surfactant with MO(EO)m(PO)nH as a general formula; (5) 0.1 to 5 percent of one or more anionic surfactants selected from sulfonated ricinate, sulfonated fatty glyceride, alkyl sulfate, alkoxy sulfate, alkylaryl sulfonate and sodium polyoxyethylene alkyl ether sulfate; (6) 0.1 to 5 percent of thickening agent; and (7) 60 to 95 percent of dispersant (water), wherein M is an initiator group of the non-ionic surfactant, alkyl or an benzene ring. The method comprises the following realization steps that: (1) the synthesized higher fatty alcohol, the natural higher fatty alcohol, the paraffin, the non-ionic surfactant, and the anionic surfactants are mixed according to the proportion, and then the temperature is increased to be between 80 and 95 DEG C; (2) then the water with a temperature of between 60 and 80 DEG C is slowly added into the mixture to begin to emulsify, and the emulsification temperature is kept higher than 60 DEG C during the emulsification; (3) the obtained product passes through a colloid mill after the adding of hot water; and (4) finally the obtained product is cooled to be between 30 and 40 DEG C, then the thickening agent is added into the obtained product to be mixed evenly, thus the higher fatty alcohol emulsion is obtained.

Description

technical field [0001] A method for dispersing a mixture of higher fatty alcohols relates to a method for preparing a higher fatty alcohol emulsion, more precisely, a method for preparing a stable emulsion of a mixture of natural fatty alcohols and synthetic alcohols, which reduces the cost of preparing emulsions with synthetic fatty alcohols. Since the preparation of the mixture emulsion belongs to fine chemical additives, it belongs to the technical field of fine chemical preparations. technical background [0002] The invention introduces the preparation of a water-based fatty alcohol emulsion, which can be used as a defoamer and applied in papermaking, waste water treatment, construction industry, water-based paint, gypsum and other industrial fields. [0003] In some industrial processes, the presence or use of surface active substances has many positive effects, but also brings serious foaming problems. In the production process of coatings and paints, the high-speed ...

Claims

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Application Information

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IPC IPC(8): B01F17/38B01D19/04D21C3/28D21H21/12C09K23/38
CPCB01F17/0085B01F17/0021C09K23/00C09K23/017C09K23/12
Inventor 吴飞曹治平钟翔曹添
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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