Decoloring method of chlorobenzene glyceryl ether

Abstract

The invention discloses a decoloring method of chlorobenzene glyceryl ether. The method comprises the following process steps of: adding a chlorobenzene glyceryl ether product recrystallized by a water-alcohol mixed solvent into a heating reaction kettle, and adding pure water and alkali into the reaction kettle; stirring the materials in the reaction kettle and heating the materials to 50-80 DEG C; after the materials are uniformly dissolved, adding an oxidizing agent into the dissolved solution, and carrying out heat preservation reaction for 1-3 hours; adding an adsorbent into the reaction liquid and reacting for 0.5-1 hour; filtering while hot to obtain filtrate, standing and separating to obtain a product phase; and obtaining the product by recrystallizing, filtering and drying the product phase. The product is white powder in appearance and almost colorless in a molten state, the purity of the product reaches 99.5% or above, the product quality is obviously improved, the process concept of high efficiency, safety and quality and efficiency improvement is achieved, and conditions are created for industrial application of the product.

Description

technical field [0001] The invention belongs to the technical field of preparation of daily-use chemical products, and relates to a processing method for an anti-mold and antibacterial agent chlorphenesin, and in particular to a decolorization method for a chlorphenesin product. Background technique [0002] Chlorphenesin (chlorphenesin), also known as chlorophenol ether, chlorphenesin, is a kind of antifungal inhibitor with excellent performance. In medicine, chlorphenesin as an antifungal drug is suitable for antifungal, bacteria, vaginal mold, trichomonas and other diseases; in cosmetics, chlorphenesin can effectively resist Gram-positive and negative bacteria In recent years, this product has been widely used in products such as nail polish, skin care agents and hair dyes in the world. [0003] The appearance of the standard chlorphenesin product should be white, but in the preparation process of chlorphenesin, due to the Williamson ether formation reaction mechanism, t...

AI Technical Summary

Problems solved by technology

The single solvents used, such as methanol, ethanol, chloroform, etc., these organic solvents have low boiling points, high volatility, poisonous, harmful, flammable, explosive, and there are problems such as large safety hazards and dangerous operation, and the single dissolution results in poor decolorization effect Ideal, even if the physical adsorption of adsorbents (such as resin, activated carbon, diatomaceous earth, etc.) is added, it is still difficult to effectively remove the colored substances in the product, and the product quality is low

In order to improve product quality, the method of increasing the amount of solvent and multiple treatments has to be used to achieve effective decolorization of the product, but this not only prolongs the decolorization time, but also greatly increases the product cost.

[0005] The above reflects that there are many problems in the decolorization process of chlorphenesin products, such as the use of toxic and harmful solvents, large safety hazards, environmental hazards, low process efficiency, high production costs, and poor quality improvement. These problems have seriously restricted the relevant enterprises. sustainable and healthy development of