发明名称 |
METHOD FOR THE PREPARATION OF PHYTOSTEROLS FROM TALL OIL PITCH |
摘要 |
<p>A method of preparing phytosterols from tall oil pitch containing steryl esters comprises the steps of converting the steryl esters to free phytosterols while in the pitch to produce a modified pitch containing the free phytosterols; removing light ends from the modified pitch by evaporation to produce a bottom fraction containing the free phytosterols; evaporating the bottom fraction to produce a light phase distillate containing the free phytosterols; dissolving the light phase distillate in a solvent comprising an alcohol to produce a solution containing the free phytosterols; cooling the solution to produce a slurry with the free phytosterols crystallized in the slurry; and, washing and filtering the slurry to isolate the crystallized phytosterols.</p> |
申请公布号 |
EP1056767(B1) |
申请公布日期 |
2003.07.02 |
申请号 |
EP19990905995 |
申请日期 |
1999.02.19 |
申请人 |
B.C. CHEMICALS LTD. |
发明人 |
WONG, ALFRED;NORMAN, HUGH, S., O.;MACMILLAN, ANGUS, KIRKE |
分类号 |
C07J9/00;C11B13/00;(IPC1-7):C07J9/00 |
主分类号 |
C07J9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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