Tetradecanol is an oleochemical raw material, mainly composed of carbon ten Composed of diol and tetradecanol. For 12-14 alcohols sold on the market, the ratio of C dodecanol and C tetradecanol is 7:3.
1. Physical and chemical properties
Colorless oily liquid or solid with pungent odor. Flammable;
Boiling point: 272.1°C at 760 mmHg;
Density: 0.832g/cm3;
Flash point: 121.1°C;
Vapor pressure: 0.000807mmHg at 25°C.
2. Production method
1. High-pressure hydrogenation method:
Coconut oil is continuously hydrogenated in a copper-chromium catalyst to obtain C8-C18 mixed alcohol. The glycerin in the oil is hydrogenolyzed into isopropyl alcohol and water. After the mixed fatty alcohol is frequently pressure evaporated to remove water and isopropyl alcohol, C8-10 alcohol, C12-14 alcohol and C16-18 alcohol are cut under reduced pressure.
2. Esterification and hydrogenation method:
Coconut oil undergoes a transesterification reaction with methanol in the presence of sulfuric acid to generate fatty acid methyl esters and glycerol. After catalytic hydrogenation and distillation, we obtain C12-14 alcohols.
3. Uses
Can be used in daily chemicals, textile chemicals, printing and dyeing chemicals and mechanical processing, etc. Industry, it has the functions of washing, emulsifying, lubricating, dispersing, defoaming, etc. It is also used in surfactants, synthetic detergents, wetting agents, rubber processing aids, chlortetracycline, emulsifiers, etc. It is a pharmaceutical ointment. Intermediates for ointments. It is also a raw material for textile and leather auxiliaries and an additive for wetting agents.
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