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    • 3. 发明授权
    • Process for the preparation of dimeric fatty acid C1-4 alkyl esters
    • 制备二聚脂肪酸C 1-4烷基酯的方法
    • US06281373B1
    • 2001-08-28
    • US09081878
    • 1998-05-19
    • Setsuo SatoCarlos Alberto de MouraMichael SublettC. William Blewett
    • Setsuo SatoCarlos Alberto de MouraMichael SublettC. William Blewett
    • C11C100
    • C11C3/003
    • Process for the preparation of dimeric fatty acid C1-4 alkyl esters comprising the steps of A) reacting a soybean oil condensate obtained from the deodorization of refined soybean oil and which contains less than 30% by weight of free and esterified oleic acid based on the total weight of free and esterified fatty acids in said condensate, with a C1-4 alkanol in the presence of a zinc oxide catalyst to convert free fatty acids and fatty acid glyceride esters to fatty acid C1-4 alkyl esters; B) removing excess C1-4 alkanol, volatile reaction by-products, water, and the zinc oxide catalyst from the resulting reaction mixture; C) heating the reaction mixture from step B) under vacuum to obtain a distillate of fatty acid C1-4 alkyl esters; D) separating the distillate from step C) into a fraction containing mostly C16-18 saturated fatty acid C1-4 alkyl esters and a second fraction containing mostly C16-18 unsaturated fatty acid C1-4 alkyl esters wherein the oleic acid C1-4 alkyl ester content is less than about 35% by weight thereof; and E) dimerizing said second fraction in the presence of montmorillonite clay.
    • 用于制备二聚脂肪酸C 1-4烷基酯的方法,包括以下步骤:A)将由精制大豆油除臭得到的大豆油缩合物与基于总计的含有少于30重量%的游离和酯化油酸反应 所述缩合物中游离和酯化的脂肪酸的重量与C1-4链烷醇在氧化锌催化剂存在下将游离脂肪酸和脂肪酸甘油酯转化为脂肪酸C 1-4烷基酯; B)除去过量的C 1 -C 4烷基酯, 4链烷醇,挥发性反应副产物,水和氧化锌催化剂; C)在真空下加热来自步骤B)的反应混合物,得到脂肪酸C 1-4烷基酯的馏出物; D)分离 来自步骤C)的馏出物成为主要含有C 16-18饱和脂肪酸C 1-4烷基酯的馏分和主要含有C 16-18不饱和脂肪酸C 1-4烷基酯的第二馏分,其中油酸C 1-4烷基酯含量 小于约35重量%; 和E)在蒙脱石粘土存在下使所述第二级分二聚。
    • 5. 发明授权
    • Process for dry synthesis and continuous separation of a fatty acid methyl ester reaction product
    • 干法合成和连续分离脂肪酸甲酯反应产物的方法
    • US06262285B1
    • 2001-07-17
    • US09339436
    • 1999-06-24
    • William M. McDonald
    • William M. McDonald
    • C11C100
    • C11C1/10C11C3/003
    • A continuous separation of fatty acid methyl esters (FAME) from glycerol in a low pressure dry transesterification process for vegetable oil is provided. Improved purity of the FAME and the glycerol fractions are achieved via the use of continuous decantation so as to thereby eliminate the need for a water wash step for the FAME fraction. Excess methanol from the FAME and the glycerol fractions is readily recovered in a dry vacuum extraction process. Water which has been inadvertently introduced into the process is removed from the recovered excess methanol by desiccant columns equipped with molecular sieves instead of the traditional energy and capital intensive fractionation processes practiced for this purpose.
    • 提供了在植物油低压干燥酯交换法中从甘油中连续分离脂肪酸甲酯(FAME)。 通过使用连续倾析来实现FAME和甘油馏分的纯度提高,从而消除了对FAME级分的水洗步骤的需要。 来自FAME的过量甲醇和甘油馏分在干燥真空萃取过程中很容易回收。 通过装备有分子筛的干燥剂塔,而不是为此目的实行的传统能量和资本密集型分馏方法,从回收的过量甲醇中除去已经无意地引入该方法的水。
    • 7. 发明授权
    • Methods for the preparation of propylene glycol fatty acid esters
    • 丙二醇脂肪酸酯的制备方法
    • US06723863B2
    • 2004-04-20
    • US10213434
    • 2002-08-07
    • Inmok LeeGeorge Poppe
    • Inmok LeeGeorge Poppe
    • C11C100
    • C11C3/10C07C67/03C11C3/003C07C69/52
    • A process of producing a light-colored, high-monoester mixture from a polyol and an oil is provided wherein the process eliminates the use of organic solvents, multiple water washings and/or molecular distillation. The reactants, a polyol and an oil, described herein, condense in the presence of a catalyst, described herein, at a temperature range from about 180° C. to about 280° C. under an inert atmosphere or the vapor pressure of the polyol with a pressure of about 0 to about 500 psig to yield a monoester mixture possessing a desirable monoester composition and color. The present process yields a final product similar to that of processes which require the use of solvents, multiple water washings and/or molecular distillation.
    • 提供了由多元醇和油制备浅色高分子混合物的方法,其中该方法消除了使用有机溶剂,多次水洗和/或分子蒸馏。 本文所述的反应物,多元醇和油,在本文所述的催化剂存在下,在约180℃至约280℃的温度范围内,在惰性气氛下或多元醇的蒸气压下冷凝 压力为约0至约500psig,以产生具有所需单酯组成和颜色的单酯混合物。 本方法产生类似于需要使用溶剂,多次水洗和/或分子蒸馏的方法的最终产物。