Invention Grant
US08383847B2 Process for the enrichment of methyl ricinoleate from castor oil methyl esters by liquid-liquid extraction
有权
通过液 - 液萃取法从蓖麻油甲酯中浓缩蓖麻醇酸甲酯的方法
- Patent Title: Process for the enrichment of methyl ricinoleate from castor oil methyl esters by liquid-liquid extraction
- Patent Title (中): 通过液 - 液萃取法从蓖麻油甲酯中浓缩蓖麻醇酸甲酯的方法
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Application No.: US12920657Application Date: 2008-10-31
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Publication No.: US08383847B2Publication Date: 2013-02-26
- Inventor: Kasturi Venkata Sesha Adinarayana Rao , Penumarthy Vijayalakshmi , Badari Narayana Prasad Rachapudi
- Applicant: Kasturi Venkata Sesha Adinarayana Rao , Penumarthy Vijayalakshmi , Badari Narayana Prasad Rachapudi
- Applicant Address: IN New Delhi
- Assignee: Council of Scientific & Industrial Research
- Current Assignee: Council of Scientific & Industrial Research
- Current Assignee Address: IN New Delhi
- Agency: Ladas & Parry LLP
- Priority: IN520/DEL/2008 20080305
- International Application: PCT/IN2008/000716 WO 20081031
- International Announcement: WO2009/109985 WO 20090911
- Main IPC: C11B7/00
- IPC: C11B7/00

Abstract:
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.
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