Cardanol polyoxyethylene ether and preparation method thereof

A technology of cardanol polyoxyethylene ether and cardanol, which is applied in the field of organic compounds and its preparation, can solve the problems of long residual time and environmental pollution, and achieve the effects of low price, good product color and good industrial application value

Inactive Publication Date: 2011-01-12
BINZHOU MEIDONG RESIN
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Problems solved by technology

Alkylphenol polyoxyethylene ethers made from alkylphenols are one of the main raw materials for nonionic surfactants. However, related downstream products made from petroleum-based synthetic alkylphenols remain in the environment for a long time, causing e

Method used

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  • Cardanol polyoxyethylene ether and preparation method thereof
  • Cardanol polyoxyethylene ether and preparation method thereof
  • Cardanol polyoxyethylene ether and preparation method thereof

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Embodiment Construction

[0009] In the present invention, cardanol is high-purity cardanol extracted from natural cashew nut shells. This cardanol is non-toxic and light in color. With this excellent renewable biomass cardanol, it can be obtained through ethoxylation reaction. Cardanol polyoxyethylene ether with excellent performance, its mechanism is: cardanol produces oxygen negative ions under alkaline conditions, and then ethoxylates with ethylene oxide to obtain cardanol polyoxyethylene ether.

[0010] Its reaction equation is as follows:

[0011]

[0012] A cardanol polyoxyethylene ether, which has the following structural formula:

[0013]

[0014] Wherein, n=2-25.

[0015] The preparation method of cardanol polyoxyethylene ether uses cardanol and ethylene oxide to react to prepare cardanol polyoxyethylene ether. During the reaction, the catalyst and cardanol are added to the reaction kettle, the feeding port cover is tightened, and the stirring and heating system is turned on. Simultan...

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Abstract

The invention provides cardanol polyoxyethylene ether and a preparation method thereof. The cardanol polyoxyethylene ether is prepared by reacting cardanol and epoxy ethane. The method comprises the following steps of: adding a catalyst and the cardanol into a reaction kettle during a reaction; fully stirring at the temperature of between 150 and 180 DEG C; introducing the epoxy ethane into the reaction kettle; performing polyreaction with stirring; adding acetic acid after the reaction for neutralization; and discharging after cooling so as to obtain the cardanol polyoxyethylene ether. The cardanol polyoxyethylene ether and the preparation method thereof have the advantages of a small number of side reactions, good color and luster of a product, mild reaction condition and low cost of raw materials. Natural cardanol is taken as a raw material for producing, so that the adverse effect of alkylpheol ethoxylates synthesized from petroleum on the environment is avoided. The cardanol polyoxyethylene ether belongs to linear chain alkylpheol ethoxylates and the hydrophile-lipophile balance (HLB) of a nonionic surfactant can be controlled by adjusting the adduct number of the epoxy ethane according to a process, so that the cardanol polyoxyethylene ether can be taken as an emulsifier, a lubricant, a washing agent, a solubilizing agent and the like.

Description

technical field [0001] The invention provides an organic compound and a preparation method thereof, in particular a cardanol polyoxyethylene ether and a preparation method thereof. Background technique [0002] Surfactants are widely used and have penetrated into various civil and industrial fields. Among them, nonionic surfactants do not ionize in water, and are amphiphilic molecules with hydroxyl or ether bonds as hydrophilic groups. Due to the nonionic surface Active agents have the characteristics of non-ionization in water, which makes non-ionic surfactants superior to ionic surfactants in some aspects, such as better solubility in water and organic solvents, and high stability in solutions , not easily affected by strong electrolyte inorganic salts and acids and bases. Because of its good compatibility with other types of surfactants, it can often be mixed and compounded well. Nonionic surfactants have good hard water resistance and low foaming properties, so they ar...

Claims

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Application Information

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IPC IPC(8): C07C43/23C08G65/40C07C41/03
Inventor 黎明全春生
Owner BINZHOU MEIDONG RESIN
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