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Acetophenone and 1-phenethyl alcohol separation method

A separation method and phenethyl alcohol technology are applied in the field of adsorption and separation of acetophenone and 1-phenethyl alcohol, can solve problems such as loss of β-cyclodextrin, and achieve the effects of stable performance, cheap raw materials and good separation effect

Inactive Publication Date: 2016-03-23
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple, efficient, low-cost, and environmentally friendly, but there is a certain loss of β-cyclodextrin during the separation process, and the adsorption capacity of pure β-cyclodextrin is easily limited by the size of its cavity and the size of the substrate molecule.

Method used

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  • Acetophenone and 1-phenethyl alcohol separation method
  • Acetophenone and 1-phenethyl alcohol separation method
  • Acetophenone and 1-phenethyl alcohol separation method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Add 30 mg of soluble starch-immobilized β-cyclodextrin polymer to 10 mL of an aqueous solution containing 5 mmol / L acetophenone and 5 mmol / L 1-phenylethanol, shake at 30 °C for 6 hours at normal pressure, and filter the residual liquid through the liquid Phase chromatography detects that the concentration of acetophenone and 1-phenylethanol in the residual liquid is 4.331mmol / L and 4.931mmol / L respectively, and the adsorption capacity of acetophenone and 1-phenylethanol is respectively 0.223mmol / L and 0.023mmol / L L, the separation factor was 11.04.

Embodiment 2

[0031] Add 30mg of soluble starch-immobilized β-cyclodextrin polymer to 10mL aqueous solution containing 10mmol / L acetophenone and 10mmol / L 1-phenylethanol, shake at 30°C for 6h under normal pressure, and filter the residual liquid through the liquid Phase chromatography detects that the concentration of acetophenone and 1-phenylethanol in the residual liquid is 8.668mmol / L and 9.881mmol / L respectively, and the adsorption capacity of acetophenone and 1-phenylethanol is respectively 0.444mmol / L and 0.063mmol / L L, the separation factor is 7.98.

Embodiment 3

[0033] Add 30 mg of soluble starch-immobilized β-cyclodextrin polymer to 10 mL of an aqueous solution containing 15 mmol / L acetophenone and 15 mmol / L 1-phenylethanol, shake at 30°C for 6 hours under normal pressure, and filter the residual liquid through the liquid Phase chromatography detects that the concentration of acetophenone and 1-phenylethanol in the residual liquid is 13.125mmol / L and 14.604mmol / L respectively, and the adsorption capacity of acetophenone and 1-phenylethanol is respectively 0.625mmol / L and 0.132mmol / L L, the separation factor is 5.26.

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Abstract

The invention discloses an acetophenone and 1-phenethyl alcohol separation method. According to the method, the adsorption capacity difference of a soluble starch-immobilized beta-cyclodextrin polymer in adsorbing acetophenone and 1-phenethyl alcohol is used, the soluble starch-immobilized beta-cyclodextrin polymer is taken as an adsorbent, and an aim of separation purification is achieved by preferential adsorption to the acetophenone under a mild condition. The separation method has the advantages of being mild in separation condition, simple in process, simple and convenient in operation, good in separation effect, green and environment-friendly, good in adsorbent regenerability, low in running cost and the like.

Description

technical field [0001] The invention relates to a method for adsorbing and separating acetophenone and 1-phenylethanol. Background technique [0002] Acetophenone is a colorless or light yellow oily liquid with low melting point, low volatility and fruity aroma. It is an important organic chemical raw material and can be used to make soap and cigarettes. It is also used as an intermediate in organic chemical synthesis, fiber Solvents for resins and plasticizers for plastics are widely used in industries such as soap, fragrance and medicine. 1-phenylethanol (also known as α-methylbenzyl alcohol, 1-phenylethanol) is a colorless liquid with a floral fragrance and is also an important chemical raw material. It is a more important and widely used food in aromatic compounds. Spices are also widely used in the spice and pharmaceutical industries. The important thing is that some crude raw materials, by-products and wastes of many petrochemical enterprises contain acetophenone and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C33/22C07C29/76C07C49/78C07C45/79
CPCC07C29/76C07C45/79
Inventor 纪红兵卢科柴坤刚秦祖赠
Owner GUANGXI UNIV
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