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    Hydrotreating polyester precursors
    2.
    发明授权
    Hydrotreating polyester precursors 有权
    加氢处理聚酯前体

    公开(公告)号：US07067615B1

    公开(公告)日：2006-06-27

    申请号：US11151085

    申请日：2005-06-13

    申请人： Zhufang Liu ,  Jeff Scott Howell ,  Charles Edwan Sumner, Jr.

    发明人： Zhufang Liu ,  Jeff Scott Howell ,  Charles Edwan Sumner, Jr.

    IPC分类号： C08F6/00

    CPC分类号： C08G63/78

    摘要： A process comprising contacting a liquid polyester stream with hydrogen in the presence of a hydrogenation catalyst comprising a metal supported on the surface of silicon carbide at a metal dispersion of at least 0.5% or graphite at a metal dispersion of at least 10% to produce a treated liquid polyester stream. The treated stream may be polycondensed in the presence of a polycondensation catalyst to produce a polyester polymer having an It.V. of at least 0.55 dL/g. The liquid polyester stream desirably has a composition comprising: a) terephthalic acid residues, isophthalic acid residues, and/or naphthalenedicarboxylic acid residues and b) an average degree of polymerization of 0.5 to 20 and c) an acid number ranging from 5 to 600.

    摘要翻译： 一种方法包括在氢化催化剂存在下使液体聚酯流与氢气接触，所述氢化催化剂包含以至少0.5％的金属分散体或至少为10％的金属分散体的石墨支撑在碳化硅表面上的金属，以产生至少10％的金属分散体 处理液体聚酯流。 处理过的物流可以在缩聚催化剂的存在下进行缩聚以制备具有It.V.的聚酯聚合物。 至少0.55dL / g。 液体聚酯流理想地具有包括：a）对苯二甲酸残基，间苯二甲酸残基和/或萘二甲酸残基的组合物，以及b）平均聚合度为0.5至20，c）酸值为5至600。

    Process for the purification of a crude carboxylic acid slurry
    6.
    发明授权
    Process for the purification of a crude carboxylic acid slurry 有权
    粗制羧酸浆液的纯化方法

    公开(公告)号：US07132566B2

    公开(公告)日：2006-11-07

    申请号：US10667744

    申请日：2003-09-22

    申请人： Charles Edwan Sumner, Jr. ,  Philip Edward Gibson ,  Robert Lin ,  Eric Jackson Fugate ,  Ernest William Arnold

    发明人： Charles Edwan Sumner, Jr. ,  Philip Edward Gibson ,  Robert Lin ,  Eric Jackson Fugate ,  Ernest William Arnold

    IPC分类号： C07C51/16 ,  C07C51/42

    CPC分类号： C07C51/47 ,  C07C51/43 ,  C07C51/487 ,  C07C63/26

    摘要： Disclosed is a process to produce a purified carboxylic acid product. The process comprises removing impurities from a crude carboxylic acid slurry in a solid-liquid displacement zone to form a slurry product. The slurry product if further treated in a staged oxidation zone and a crystallization zone to from a crystallized product. The crystallized product is further cooled in a cooling zone and subsequently filtered and dried in a filtration and drying zone. The process produces purified carboxylic acid product having good color and low impurity levels without the use of purification steps like hydrogenation.

    摘要翻译： 公开了一种生产纯化的羧酸产物的方法。 该方法包括从固体 - 液体置换区中的粗制羧酸浆液中除去杂质以形成浆料产物。 如果在分阶段的氧化区和结晶区进一步处理，得到浆状产物至结晶产物。 将结晶产物在冷却区进一步冷却，随后过滤并在过滤和干燥区中干燥。 该方法产生具有良好颜色和低杂质水平的纯化羧酸产物，而不使用纯化步骤如氢化。

    Process for the isolation of polyunsaturated fatty acids and esters thereof from complex mixtures which contain sterols and phosphorus compounds
    7.
    发明授权
    Process for the isolation of polyunsaturated fatty acids and esters thereof from complex mixtures which contain sterols and phosphorus compounds 失效
    用于从含有甾醇和磷化合物的复杂混合物中分离多不饱和脂肪酸及其酯的方法

    公开(公告)号：US6063946A

    公开(公告)日：2000-05-16

    申请号：US592797

    申请日：1996-01-26

    申请人： Robert Alan Miller ,  Terrence Bruce Mazer ,  Scott Donald Barnicki ,  Charles Edwan Sumner, Jr.

    发明人： Robert Alan Miller ,  Terrence Bruce Mazer ,  Scott Donald Barnicki ,  Charles Edwan Sumner, Jr.

    IPC分类号： A23L5/20 ,  C11C1/02 ,  C11C1/10 ,  C11C3/00 ,  C11C3/02 ,  C11C1/00

    CPC分类号： C11C3/02 ,  C11C1/025 ,  C11C1/10 ,  C11C3/003

    摘要： This invention relates to a process for the isolation of fatty acids and fatty acid esters from complex naturally occurring mixtures which contain sterols, triglycerides and phospholipids. A preferred embodiment of the invention comprises extracting lipids from egg yolk solids with methanol; separating lipids including sterols from insoluble egg yolk components; submitting the methanolic solution of lipids to (a) alkaline hydrolysis and subsequent neutralization to convert lipids to free fatty acids together with sterols; (b) separating the said sterols and acids from an aqueous phase formed in the hydrolysis reaction; (c) heating said free fatty acids and sterols to convert the sterols to fatty acid sterol esters; (d) subjecting the mixture to distillation to separate the sterol esters from the free fatty acids; and (e) subjecting the said acids to esterification in the presence of glycerol to produce triglycerides of said fatty acids wherein the resulting triglycerides contain reduced quantities of sterols and phosphorus. An enteral nutritional formula containing the triglycerides produced in the above process is also disclosed.

    摘要翻译： 本发明涉及从含有甾醇，甘油三酯和磷脂的复杂天然存在的混合物中分离脂肪酸和脂肪酸酯的方法。 本发明的优选实施方案包括用甲醇从蛋黄固体中提取脂质; 分离包括固醇的脂质不溶于蛋黄成分; 将脂质的甲醇溶液（a）碱性水解并随后中和，将脂质与甾醇一起转化为游离脂肪酸; （b）将所述甾醇和酸与水解反应中形成的水​​相分离; （c）加热所述游离脂肪酸和甾醇以将甾醇转化为脂肪酸甾醇酯; （d）使混合物进行蒸馏以将固醇酯与游离脂肪酸分离; 和（e）在甘油存在下使所述酸进行酯化以产生所述脂肪酸的甘油三酯，其中所得甘油三酸酯含有降低量的甾醇和磷。 还公开了含有在上述方法中生产的甘油三酯的肠内营养配方。

    Polyester precursor purification process
    10.
    发明授权
    Polyester precursor purification process 有权
    聚酯前体纯化工艺

    公开(公告)号：US06380352B1

    公开(公告)日：2002-04-30

    申请号：US09812581

    申请日：2001-03-20

    申请人： Charles Edwan Sumner, Jr. ,  Ronald Buford Sheppard

    发明人： Charles Edwan Sumner, Jr. ,  Ronald Buford Sheppard

    IPC分类号： C08F600

    CPC分类号： C07C67/60 ,  C07C69/82

    摘要： Disclosed is a process for the purification of a polyester precursor wherein a polyester oligomer derived from terephthalic acid and one or more glycols or diols is purified or decolorized by hydrogenating the oligomer to convert colored impurities to colorless compounds and thereby improve the color of the oligomer. The colored impurities are present in the terephthalic acid used to prepare the oligomers and are formed during the manufacture of terephthalic acid. The purified/decolorized oligomer obtained from the disclosed process may be used to prepare high molecular weight polyesters.

    摘要翻译： 公开了一种纯化聚酯前体的方法，其中通过氢化低聚物将衍生自对苯二甲酸和一种或多种二醇或二醇的聚酯低聚物纯化或脱色，将有色杂质转化为无色化合物，从而提高低聚物的颜色。 有色杂质存在于用于制备低聚物的对苯二甲酸中，并且在制造对苯二甲酸期间形成。 从所公开的方法获得的纯化/脱色低聚物可用于制备高分子量聚酯。