Title: Recovery of laurel oil by direct steam distillation of laurel branches and leaves
Application Number: 87107543 Application Date: 1987.10.31
Publication Number: 1032953 Publication Date: 1989.05.17
Approval Pub. Date: Granted Pub. Date: 1992.10.07
International Classifi-cation: C11B1/16,C11B9/00
Applicant(s) Name: Guangzhou Chemical Research Inst., Chinese Academy Address:
Inventor(s) Name: Chen Xueliang, Deng Weici
Attorney & Agent: JI JILAN
Abstract:
     The technology of this invention falls into the category of those for recovery of refined essential oils by steam distillation. Prior to steam distillation with steam supplied from a boiler, the laurel branches and leaves are first subjected to mechanical disintegration and then soaking in sodium chloride solution to accelerate the liberation of laurel oil. A multi-tubular type oil separator with large surface area is designed for the separation of laurel oil from the oil-water emulsion. Comparing with the prior technology, the new technology of this invention can give 50 to 100% more oil yield while the aldehyde content of the laurel oil increases up to 97% against the former level of 90%. Supply of steam from a boiler is necessary for commercialized production with the heating efficiency of the fuel increased twofolds.
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