| 摘要 |
<p>PURPOSE:To recover a higher alcohol in a high concentration from sugar cane or a product using it as a raw material and a treated material in the production process thereof with high efficiency in a simple step, by using a fluid in a subcritical or supercritical state as an extracting reagent. CONSTITUTION:A straight-chain primary higher aliphatic higher alcohol, e.g. octacosanol or triacontanol, the industrially and advantageously extracted and separated from a natural product material. In the process, a fluid which is a fluid in a state near supercritical state or above, e.g. ethylene or carbon dioxide, having a density close to that of a fluid and a high diffusion coefficient close to that of a gas, particularly preferably CO2, is used as an extracting reagent to extract and separate the above-mentioned alcohol from sucrose or a product using the sucrose as a raw material or a treated material in the production process thereof. The extracting reagent has improved separating ability, can be handled at a relatively low temperature and is readily handled and operated and economically advantageous.</p> |
