首页>
外国专利>
A PROCESS FOR THE ENRICHMENT OF METHYL RICINOLEATE FROM CASTOR OIL METHYL ESTERS BY LIQUID-LIQUID EXTRACTION
A PROCESS FOR THE ENRICHMENT OF METHYL RICINOLEATE FROM CASTOR OIL METHYL ESTERS BY LIQUID-LIQUID EXTRACTION
展开▼
机译:液体萃取法从蓖麻油甲基酯中富集蓖麻油酸甲酯的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention provides a process for the enrichment of methyl ricinoleate from castor oil methyl esters by liquid-liquid extraction (LLE) in presence of refined vegetable oils using an aqueous polar solvent. The invention provides an extraction of methyl ricinoleate by a non-destructive extraction method with good yields (75 to 90%) and purity (95 to 99%). The method consists of mixing castor oil methyl esters in a refined normal vegetable oil (feed) in a suitable proportion and selective extraction of methyl ricinoleate in a non-destructive manner by liquid-liquid extraction using a polar aqueous solvent, followed by de-solventization and drying of the solute to get enriched methyl ricinoleate fraction with good yields. The non-hydroxy fatty acid methyl esters of castor oil methyl esters are retained in the vegetable oil and can be used for the preparation of biodiesel or oelochemicals or reused in the process for the enrichment of methyl ricinoleate after removal of non-hydroxy fatty acid either by distillation under reduced pressure or further by liquid-liquid extraction using pure solvent.
展开▼