利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.028 秒)

    Recovery of tocopherol and sterol from tocopherol and sterol containing mixtures of fats and fat derivatives
    1.
    发明授权
    Recovery of tocopherol and sterol from tocopherol and sterol containing mixtures of fats and fat derivatives 失效
    从生育酚和含有脂肪和脂肪衍生物混合物的固醇中回收生育酚和固醇

    公开(公告)号：US5627289A

    公开(公告)日：1997-05-06

    申请号：US387933

    申请日：1995-02-27

    申请人： Lutz Jeromin ,  Wilhelm Johannisbauer ,  Bernhard Gutsche ,  Volkmar Jordan ,  Herbert Wogatzki

    发明人： Lutz Jeromin ,  Wilhelm Johannisbauer ,  Bernhard Gutsche ,  Volkmar Jordan ,  Herbert Wogatzki

    IPC分类号： A23L3/3544 ,  C07D311/72 ,  C07J9/00 ,  C07J75/00 ,  C11B3/02 ,  C11B7/00 ,  C11C3/10

    CPC分类号： A23L3/3544 ,  C07D311/72

    摘要： A process is provided for simultaneously recovering tocopherol and sterol from a mixture containing tocopherol, fats and/or fat derivatives, more particularly fatty acids, and sterol and/or sterol derivatives, more particularly from a steamer distillate of natural oils and fats. The steps of said process comprise:free fatty acids present in the mixture are esterified with a lower alcohol, preferably methanol, 0.4 to 1.6 and more particularly 1 to 1.5 parts by volume of mixture being esterified with 1 part by volume of the lower alcohol,the mixture is subsequently transesterified with the lower alcohol in the presence of a basic catalyst,the excess lower alcohol is distilled off from the reaction mixture after the transesterification,the transesterification catalyst and the glycerol optionally present are removed, more particularly by washing,the fatty acid alkyl ester is distilled off from the mixture, more particularly after removal of the transesterification catalyst, andif desired, tocopherol and sterol are separated by methods known per se. After the transesterification reaction, the alkali catalyst is preferably neutralized with an inorganic acid and the mixture is then washed with water.

    摘要翻译： PCT No.PCT / EP93 / 02207 Sec。 371日期：1995年2月27日 102（e）1995年2月27日PCT PCT 1993年8月18日PCT公布。 公开号WO94 / 00650 PCT 日期1994年5月17日提供了一种从含有生育酚，脂肪和/或脂肪衍生物，特别是脂肪酸和甾醇和/或固醇衍生物的混合物中同时回收生育酚和固醇的方法，更特别是来自天然油的蒸馏馏分和 脂肪 所述方法的步骤包括：混合物中存在的游离脂肪酸用低级醇优选甲醇酯化，优选甲醇为0.4至1.6，更特别为1至1.5体积份的混合物与1体积份低级醇酯化， 该混合物随后在碱性催化剂的存在下与低级醇进行酯交换，在酯交换反应后，从反应混合物中蒸出过量的低级醇，任选存在的酯交换催化剂和甘油被去除，更特别是通过洗涤除去脂肪 从混合物中蒸馏掉酸性烷基酯，更特别是在除去酯交换催化剂后，如果需要，通过本身已知的方法分离生育酚和固醇。 酯交换反应后，碱催化剂优选用无机酸中和，然后将混合物用水洗涤。

    Recovery of tocopherols
    2.
    发明授权
    Recovery of tocopherols 失效
    恢复生育酚

    公开(公告)号：US5646311A

    公开(公告)日：1997-07-08

    申请号：US654483

    申请日：1996-05-28

    申请人： Tracy K. Hunt ,  Lutz Jeromin ,  Wilhelm Johannisbauer ,  Bernhard Gutsche ,  Volkmar Jordon ,  Herbert Wogatzki

    发明人： Tracy K. Hunt ,  Lutz Jeromin ,  Wilhelm Johannisbauer ,  Bernhard Gutsche ,  Volkmar Jordon ,  Herbert Wogatzki

    IPC分类号： B01J31/02 ,  B01J31/08 ,  C07C67/03 ,  C07C67/54 ,  C07D311/72 ,  C07C69/24

    CPC分类号： C07D311/72 ,  C07C67/03 ,  C07C67/54

    摘要： Starting from a mixture containing tocopherol, fats and/or fat derivatives, more particularly fatty acids, and optionally sterol and/or sterol derivatives, the free fatty acids present in the mixture are esterified with an alcohol. The mixture is then transesterified with an alcohol in the presence of a basic catalyst. After the transesterification, the excess lower alcohol is distilled off from the reaction mixture. The transesterification catalyst and the glycerol present, if any, are removed and the fatty acid alkyl ester is distilled off from the mixture. Distillation of fatty acid alkyl esters can be accomplished with a packed column in sequence with a wiped film evaporator. The simultaneous recovery of tocopherol and sterol is possible. Tocopherols and sterols can be separated by the crystallization of sterols from a blend of organic solvents.

    摘要翻译： 从含有生育酚，脂肪和/或脂肪衍生物，更特别是脂肪酸和任选的固醇和/或固醇衍生物的混合物开始，混合物中存在的游离脂肪酸被醇酯化。 然后将混合物在碱性催化剂存在下用醇酯交换。 酯交换后，从反应混合物中蒸馏出多余的低级醇。 酯交换催化剂和存在的甘油（如果有的话）被除去，并从混合物中蒸出脂肪酸烷基酯。 脂肪酸烷基酯的蒸馏可以用填充柱依次用擦膜蒸发器完成。 生育酚和甾醇的同时回收是可能的。 生育酚和甾醇可以通过固醇与有机溶剂的混合物的结晶分离。

    Process for the separation of alcohols by distillation
    4.
    发明授权
    Process for the separation of alcohols by distillation 失效
    通过蒸馏分离醇的方法

    公开(公告)号：US5710261A

    公开(公告)日：1998-01-20

    申请号：US594506

    申请日：1996-01-31

    申请人： Wilhelm Johannisbauer ,  Michael Nitsche ,  Lutz Jeromin

    发明人： Wilhelm Johannisbauer ,  Michael Nitsche ,  Lutz Jeromin

    IPC分类号： C07H15/04

    CPC分类号： C07H15/04 ,  Y10S159/10 ,  Y10S159/16

    摘要： Aliphatic alcohols with up to 30 and especially with 6 to 18 carbon atoms are separated from a mixture of alkyl glycosides and alcohols which are unreacted during the production of these glycosides, by single or multi-stage distillation. The alcohols are distilled off by a drop film evaporator to impoverish the reaction mixture to residual alcohol contents of 5 wt % and under. The strip load of the drop film evaporator is set to at least 1.0 m.sup.3 /h m, especially at least 1.8 m.sup.3 /h m and preferably at least 3.0 m.sup.3 /h m. It is possible to reduce the alcohol content of the product to any value between 0.1 and 5 wt % at acceptable overall cost.

    摘要翻译： 通过单阶段或多阶段蒸馏，在生产这些糖苷期间将具有多达30个，特别是6至18个碳原子的脂族醇从烷基糖苷和醇的混合物中分离出来，所述烷基糖苷和醇是未反应的。 通过滴膜蒸发器蒸馏掉醇，将反应混合物贫化至5重量％以下的残留醇含量。 降膜蒸发器的带材负载设定为至少1.0m 3 / h m，特别是至少1.8m 3 / h m，优选至少3.0m 3 / h m。 可以以可接受的总成本将产品的醇含量降低至0.1至5重量％之间的任何值。