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    • 8. 发明申请
    • Method for separating supercritical or near critical mixtures
    • 分离超临界或近临界混合物的方法
    • US20050150380A1
    • 2005-07-14
    • US10511039
    • 2003-04-02
    • Bernhard GutscheWilhelm JohannisbauerHarald RoesslerMagnus Topphoff
    • Bernhard GutscheWilhelm JohannisbauerHarald RoesslerMagnus Topphoff
    • C07C29/76B01D19/00
    • C07C29/76Y02P20/544C07C31/04C07C31/125C07C33/025
    • Processes for separating supercritical or near-critical mixtures containing hydrogen, a solvent gas, methanol and a fatty alcohol under an initial pressure of from 100 to 300 bar are described, wherein the processes comprise: (a) reducing the pressure of such a mixture in a first stage to a pressure of from 50 to 150 bar to form a first recycle gas and a first partially-separated intermediate mixture, wherein the reduced pressure in the first stage is at least below the initial pressure; (b) reducing the pressure of the first partially-separated intermediate mixture in a second stage to a pressure of from 10 to 50 bar to form a second recycle gas and a second partially-separated intermediate mixture; and (c) reducing the pressure of the second partially-separated intermediate mixture in a third stage to a pressure of from 1 to 10 bar to form a third recycle gas and a fatty alcohol product.
    • 描述了在100至300巴的初始压力下分离含有氢,溶剂气体,甲醇和脂肪醇的超临界或近临界混合物的方法,其中所述方法包括:(a)将这种混合物的压力降低 第一阶段至50至150巴的压力以形成第一再循环气体和第一部分分离的中间体混合物,其中第一阶段中的减压至少低于初始压力; (b)将第二阶段中的第一部分分离的中间体混合物的压力降低至10至50巴的压力以形成第二再循环气体和第二部分分离的中间体混合物; 和(c)将第三阶段中的第二部分分离的中间体混合物的压力降低至1至10巴的压力以形成第三循环气体和脂肪醇产物。
    • 9. 发明授权
    • Recovery of tocopherol and sterol from tocopherol and sterol containing
mixtures of fats and fat derivatives
    • 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
    • US5627289A
    • 1997-05-06
    • US387933
    • 1995-02-27
    • Lutz JerominWilhelm JohannisbauerBernhard GutscheVolkmar JordanHerbert Wogatzki
    • Lutz JerominWilhelm JohannisbauerBernhard GutscheVolkmar JordanHerbert Wogatzki
    • A23L3/3544C07D311/72C07J9/00C07J75/00C11B3/02C11B7/00C11C3/10
    • A23L3/3544C07D311/72
    • 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.
    • 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。