Method for separating L-alpha-terpilenol from camphor oil byproduct

• Main Authors: LIN ZHIFEN, ZHANG YULONG
• Format: Patent
• Language: Chinese; English
• Published: 19.03.2019
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to the separation technique of natural-products, namely high-purity oil products, and particularly relates to a method for separating L-alpha-terpilenol from a camphor oil byproduct. The method comprises the following steps: (1) putting the camphor oil byproduct into a constant-temperature device, carrying out cooling crystallization on the camphor oil byproduct, and after the camphor oil byproduct is cooled to (20)-(-20) DEG C, carrying out constant-temperature stabilization for 2.5-4 hours, so as to obtain a solid-liquid mixture; and (2) carrying out centrifugal separation on the solid-liquid mixture, so as to obtain the L-alpha-terpilenol product. According to the method, alpha-terpilenol in the camphor oil byproduct is purified by virtue of a freezing crystallization method, and the L-alpha-terpilenol product with a purity of 99.8% can be acquired by controlling the crystallization time and temperature and the centrifugal operation conditions; and compared with an existing vacuum fra