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公开(公告)号：US06232480B1
公开(公告)日：2001-05-15
申请号：US09329212
申请日：1999-06-10
IPC分类号： C07F5136
CPC分类号： C07C51/36 , C07C53/126
摘要： A mixture of saturated and unsaturated carboxylic acids are hydrogenated with an effective amount of a hydrogenation catalyst and in the presence of an effective amount of an adsorbent to produce a hydrogenated product having less than about 200 ppm of oxygenated by-products and an iodine value of less than 10.
摘要翻译： 将饱和和不饱和羧酸的混合物用有效量的氢化催化剂氢化，并在有效量的吸附剂存在下，产生具有小于约200ppm的氧化副产物的氢化产物，碘值为 小于10。
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公开(公告)号：US06498261B1
公开(公告)日：2002-12-24
申请号：US08479503
申请日：1995-06-07
申请人： Edward L. Ewbank , David J. Anneken
发明人： Edward L. Ewbank , David J. Anneken
IPC分类号： C11B312
摘要： The invention is a method for improving the color and color stability of oleic acid by a two column distillation process in which the oleic acid to be color improved is introduced into a first distillation zone containing an enriching section and a stripping section providing a minor amount of a topping product and a major amount of underflow containing the oleic acid and passing the oleic acid to a bottom portion of a second distillation zone having an enriching section to recover the improved oleic acid with improved color and color stability as a top product from the second distillation zone.
摘要翻译： 本发明是通过两塔蒸馏方法提高油酸的颜色和颜色稳定性的方法，其中将要改色的油酸引入含有富集部分的第一蒸馏区和提供少量的 包含油酸的顶部产品和主要量的下溢，并将油酸通过具有富集部分的第二蒸馏区的底部，以回收改进的油酸，其具有改进的颜色和颜色稳定性，作为来自第二个的顶部产物 蒸馏区。
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