发明名称 |
Menetelmä rasvapitoisten luonnontuotteiden fraktiointiin tai puhdistukseen |
摘要 |
A method for the fractionation and/or refinement of natural substances contg. lipids comprises extraction of the liq. substance with a compressed gas in the form of a liq. mixt. of 50-90 wt.% propane and 10-50 wt.% carbon dioxide, the mixt. being in a non-critical state . Pref. the extn. is carried out at 10-80(30-65) degrees C and 20-65 (30-55) bar using 1-25g of a mixt. comprising 60-80 wt.% propane and 20-40 wt.% CO2 per g of starting material. A high pressure extraction column is used with a counter-flow and a temp. gradient up to 20 degrees C has been set up. The extracted lipid components are sepd. from the extraction gases by increasing the temp. and/or reducing the pressure, pref. at less than 60 degrees C and 8-30 bar. The liq./liq. extraction step is a continuous one. |
申请公布号 |
FI956295(A) |
申请公布日期 |
1996.06.30 |
申请号 |
FI19950006295 |
申请日期 |
1995.12.28 |
申请人 |
SKW TROSTBERG AKTIENGESELLSCHAFT |
发明人 |
HEIDLAS, JUERGEN;HUBER, GEORG |
分类号 |
C07B63/00;A23L1/275;B01D11/04;C11B1/10;C11B3/00 |
主分类号 |
C07B63/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|