Preparation method of high-purity phenoxyethanol

A technology of pure phenoxyethanol and phenoxyethanol, which is applied in the field of medicine and chemical industry, can solve the problems of high equipment requirements, high production costs, and high energy consumption, and achieve the effects of low equipment requirements, no need for pressure-resistant equipment, and low energy consumption
CN110642706AActive Publication Date: 2020-01-03江苏东南纳米材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江苏东南纳米材料有限公司
Publication Date
2020-01-03

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Abstract

The invention discloses a preparation method of high-purity phenoxyethanol. The preparation method comprises the following steps: dissolving industrial phenoxyethanol in an organic solvent; performingwashing with alkaline water; and performing cooling and crystallizing to obtain high-purity phenoxyethanol. The phenoxyethanol obtained by the method has high purity (GC purity >= 99.5%, a single impurity <= 0.1%), production can be carried out by conventional equipment, the production cost is low, the process is simple and concise, and thereby the method is easy for industrial production.
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Description

technical field

[0001] The invention belongs to the field of medicine and chemical industry, and in particular relates to a preparation method of high-purity phenoxyethanol. Background technique

[0002] Phenoxyethanol is a colorless slightly viscous liquid at room temperature, is relatively low in toxicity, and is chemically inactive towards copper and lead. It can be used as a preservative and is widely used in cosmetics, skin care products, vaccines and medicines. Phenoxyethanol has a strong killing effect on Pseudomonas aeruginosa, so it can also be used as a disinfectant for surgical medicine. In addition, it is also widely used in aquaculture, dyes, inks, resins and other fields.

[0003] In the field of medicine, in order to reduce the toxic and side effects of drugs on the human body, not only high requirements are placed on the quality of raw materials, but also high requirements on pharmaceutical excipients. Phenoxyethanol also needs to be of high quality as a su...

Claims

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