Preparation method of continuous efficient green surfactant

Abstract

The invention discloses a preparation method of a continuous high-efficiency green surfactant, and belongs to the field of surfactant preparation, the preparation method of the continuous high-efficiency green surfactant comprises the following steps: alkylation reaction: adding alkyl glycoside production raw materials into mixing equipment according to a preparation formula, and mixing and stirring at 95-130 DEG C; carrying out dealcoholization treatment; stirring and decolorizing; defoaming is performed; descaling is conducted; filtering and compounding; in the process of stirring and defoaming by using the heating rod, the intermittent effect of the self-stripping moving ring is increased to assist in stripping dirt in the elastic guide pipe, reduce the energy consumption of the heater and improve the heating and defoaming efficiency, so that the production efficiency of alkyl glycoside is effectively improved. In addition, the dirt treated in time can also prevent loss of alkyl glycoside components in the decoloration process due to too high heat of the heater, and the production quality of the alkyl glycoside is effectively improved through the effect of the self-stripping moving ring.

Description

technical field [0001] The invention relates to the field of surfactant preparation, in particular to a method for preparing a continuous high-efficiency green surfactant. Background technique [0002] Green surfactants refer to surfactants that are processed from natural or renewable resources, are less irritating to the human body and are easily biodegradable. Alkyl glucoside is a new type of green surfactant that emerged in the 1990s. It is a mixture obtained by losing a molecule of the hemiacetal group of glucose and fatty alcohol group in the catalysis of acid, a natural renewable resource. product. Alkyl glycosides have low surface tension, no cloud point, adjustable HLB value, strong wetting power, strong detergency, rich and delicate foam, strong compatibility, non-toxic, harmless, non-irritating to the skin, and rapid and thorough biodegradation. It can be compounded with any type of surfactant and has obvious synergistic effect, so it is widely used as a green su...

AI Technical Summary

Problems solved by technology

Alkyl glycosides generally have a darker color and need to be decolorized and bleached. Due to the high viscosity of high-concentration alkyl glycosides and poor fluidity, a certain stirring speed is required in a general-purpose bleacher. This requires the use of defoaming equipment for auxiliary production

[0004] The most widely used defoaming method today is the thermal defoaming method, but in the existing thermal defoaming method, it is easy to cause serious fouling in the heater, which will greatly reduce its defoaming efficiency and increase energy consumption, thereby affecting Decolorization efficiency, reducing the production efficiency of alkyl glycosides

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