- Patent Title: Method for obtaining phytosterols and/or tocopherols from residue of a distillation of the esters of vegetable oils, preferably from distillation residue from a transesterification of vegetable oils
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Application No.: US13883116Application Date: 2011-11-02
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Publication No.: US09884837B2Publication Date: 2018-02-06
- Inventor: Joachim Lemp , Nico Baade , Emanuel Pöhls
- Applicant: Joachim Lemp , Nico Baade , Emanuel Pöhls
- Applicant Address: DE Leipzig
- Assignee: VERBIO VEREINIGTE BIOENERGIE AG
- Current Assignee: VERBIO VEREINIGTE BIOENERGIE AG
- Current Assignee Address: DE Leipzig
- Agency: Kriegsman & Kriegsman
- Priority: DE102010050293 20101103
- International Application: PCT/EP2011/069236 WO 20111102
- International Announcement: WO2012/059512 WO 20120510
- Main IPC: C07J9/00
- IPC: C07J9/00 ; C07D311/72 ; C07D311/58 ; C11C3/00

Abstract:
The invention relates to a method for obtaining and purifying phytosterols and/or tocopherols from distillation residue from a transesterification of vegetable oils, in particular from the vegetable oil-based fatty acid methyl ester production for the field of use of biodiesel (FAME), comprising a first transesterification stage for converting partial glycerides contained in the distillation residue; separating the glycerin phase from a reaction mixture resulting from the first transesterification stage; a second transesterification stage for converting sterol esters contained in the reaction mixture; adding water to the reaction mixture after the second transesterification stage in order to generate a multiphase system; simultaneously or sequentially separating the phases of the multiphase system into a substantially sterol-containing phase; a substantially glycerin- and methanol-containing aqueous phase; and a tocopherol-containing methyl ester phase; and obtaining phytosterols from the sterol-containing phase; and optionally obtaining tocopherols from the tocopherol-containing methyl ester phase. The invention further relates to a method for purifying a phytosterol phase and/or phytosterols.
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