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34 条记录 (耗时 0.013 秒)

    Process for separating saturated fatty acids from fatty acid mixtures
    11.
    发明授权
    Process for separating saturated fatty acids from fatty acid mixtures 失效
    从脂肪酸混合物中分离饱和脂肪酸的方法

    公开(公告)号：US06706903B1

    公开(公告)日：2004-03-16

    申请号：US10267060

    申请日：2002-10-07

    申请人： Guy Hendree ,  Shannon Martin ,  Thomas E. Breuer ,  Kyle Walker

    发明人： Guy Hendree ,  Shannon Martin ,  Thomas E. Breuer ,  Kyle Walker

    IPC分类号： C11B5100

    CPC分类号： C11C1/103 ,  C11C1/005

    摘要： A process for removing saturated fatty acids from a primarily unsaturated fatty acid mixture is disclosed wherein the process comprises fractionally distilling off saturated C16 and other minor fatty acid components in the mixture to a level less than or equal to 4% by weight, adding a lower polyglycerol ester as a crystallization aid, then cooling and fractionally crystallizing out remaining saturated fatty acids to yield a product comprising less than 3.3% saturated fatty acids by weight.

    摘要翻译： 公开了一种从主要不饱和脂肪酸混合物中除去饱和脂肪酸的方法，其中该方法包括将混合物中的饱和C16和其它次要脂肪酸组分分馏出至小于或等于4重量％的水平，加入较低的 聚甘油酯作为结晶助剂，然后冷却并分级结晶剩余的饱和脂肪酸，得到包含重量小于3.3％饱和脂肪酸的产物。

    Process for the preparation of heatresistant and lightfast fatty acids
    13.
    发明授权
    Process for the preparation of heatresistant and lightfast fatty acids 失效
    制备热稳定性和轻质脂肪酸的方法

    公开(公告)号：US3840574A

    公开(公告)日：1974-10-08

    申请号：US16699371

    申请日：1971-07-28

    申请人： DYNAMIT NOBEL AG

    发明人： NASKAR S ,  RENCKHOFF G

    IPC分类号： C07C53/126 ,  C07C51/00 ,  C07C67/00 ,  C11C1/10 ,  C09F5/10

    CPC分类号： C11C1/103

    摘要： 1. A PROCESS FOR THE PREPARATION OF HEAT-RESISTANT AND LIGHTFAST FATTY ACIDS FROM CRUDE FATTY ACIDS HAVING A CHAIN LENGTH OF C8-C18 WHICH COMPRISES HEATING THE CRUDE FATTY ACIDS OR THE MIXTURES THEREOF WITH A POLYCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC POLY- OR HYDROXYPOLYCARBOXYLIC ACID CONTAINING 2 TO 10 CARBON ATOMS, AND A CYCLOALIPHATIC POLYCARBOXYLIC ACID CONTINING 5 TO 10 CARBON ATOMS OR A LOWEER ALKYL ESTER OF SAID POLYBOXYLIC ACID TO TEMPERATURES OF ABOUT 180* C. TO ABOUT 280*C., FOR A PERIOD SUFFICIENT TO IMPROVE THE HEAT-RESISTANT AND LIGHTFASTENESS OF THE FATTY ACIDS AND SUBSEQUENTLY DISTILLING OFF THE FATTY ACIDS UNDER A VACUUM.

    Process for preparing purified fatty acids
    19.
    发明申请
    Process for preparing purified fatty acids 有权
    纯化脂肪酸的制备方法

    公开(公告)号：US20060167291A1

    公开(公告)日：2006-07-27

    申请号：US10564143

    申请日：2004-07-05

    申请人： Franz-Josef Te Baay ,  Holger Riemensperger ,  Ingo Mensink

    发明人： Franz-Josef Te Baay ,  Holger Riemensperger ,  Ingo Mensink

    IPC分类号： C07C51/43

    CPC分类号： C07C51/44 ,  C11C1/005 ,  C11C1/04 ,  C11C1/10 ,  C11C1/103 ,  C11C3/10

    摘要： The present invention relates to a process for preparing fatty acids derived from oils and/pr fats with a phosphorus content below 200 ppm in good yield and with good colour and colour stability, which process comprises the steps of (A) hydrolytic splitting of degummed oils and/or fats, (B) at least one thermal pre-treatment of a composition comprising crude fatty acids, and (C) high vacuum distillation of the thermally pre-treated composition comprising crude fatty acids.

    摘要翻译： 本发明涉及以高产率和良好的颜色和颜色稳定性制备磷含量低于200ppm的油和/或脂肪酸的方法，该方法包括以下步骤：（A）脱胶油的水解裂解 和/或脂肪，（B）包含粗脂肪酸的组合物的至少一种热预处理，和（C）包含粗脂肪酸的热预处理组合物的高真空蒸馏。

    Method for isolating high-purified unsaturated fatty acids using crystallization
    20.
    发明授权
    Method for isolating high-purified unsaturated fatty acids using crystallization 失效

    公开(公告)号：US06664405B2

    公开(公告)日：2003-12-16

    申请号：US09996544

    申请日：2001-11-28

    申请人： Seong Kweon Lee

    发明人： Seong Kweon Lee

    IPC分类号： C07C5143

    CPC分类号： C11C1/007 ,  C11C1/103

    摘要： The present invention relates to a method for isolating and purifying only a certain unsaturated fatty acid in a high purity from fatty acids present in oils including vegetable oils and fish oils by means of crystallization. More particularly, the present invention relates to a method for isolating and purifying only the desired unsaturated fatty acid in a high purity from fatty acids present in oils by selectively using a urea-addition crystallization, and a cooling crystallization or a high liquid chromatography. Specifically, the present invention provides a method for isolating and purifying linoleic acid or oleic acid as unsaturated fatty acids, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a vegetable oil containing linoleic acid or oleic acid at a high concentration, such as safflower oil, corn germ oil or olive oil, as the raw material to two-step urea-addition crystallization using methanol and urea and then crystallizing the concentrated unsaturated fatty acid from an organic solvent under cooling at temperature of −5° C. to −10° C. without stirring, or a method for isolating eicosapentaenoic acid (EPA) as unsaturated fatty acid, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a fish oil containing EPA at a high concentration, such as sardine oil, as the raw material to two-step urea-addition crystallization using methanol and urea to obtain a concentrated unsaturated fatty acid having a high purity and then further purifying the high-purified, concentrated fatty acid by means of a high liquid chromatography using a column filled with Ag-silica or Ag-alumina.