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22 条记录 (耗时 0.051 秒)

    Removal of salts in the manufacture of phenolic compound
    3.
    发明授权
    Removal of salts in the manufacture of phenolic compound 失效
    去除酚类化合物制造中的盐

    公开(公告)号：US06965056B1

    公开(公告)日：2005-11-15

    申请号：US09304298

    申请日：1999-05-03

    申请人： Austin Dale Taggart, II ,  Edgar Donald Allan ,  Roberto Carlos Longoria ,  David Werner Daum ,  Robert Lawrence Blackbourn

    发明人： Austin Dale Taggart, II ,  Edgar Donald Allan ,  Roberto Carlos Longoria ,  David Werner Daum ,  Robert Lawrence Blackbourn

    IPC分类号： C07C37/72 ,  C07C37/08 ,  C07C37/68 ,  C07C37/74 ,  C07C39/04

    CPC分类号： C07C37/685 ,  C07C37/08 ,  C07C39/04

    摘要： There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase containing salts of neutralization; whereby the amount of salts of neutralization in the hydrocarbon phase is reduced compared to the amount of salts of neutralization present prior to separation.

    摘要翻译： 提供了一种通过将含有中和盐的中和的芳烷基氢过氧化物切割质量流分离成粗酮物流和含有中和盐的粗酚物流来制备酚类化合物的方法; 将粗酚物流分离成富含酚类化合物的富含浓酚的料流，以及富含焦油和α-甲基苯乙烯二聚物的粗酚底物流，其与粗酚流相比，所述粗酚底物流含有中和盐 ; 加入水和稀释剂组合物，从而形成可分离的粗酚底物流，所述稀释剂组合物由与粗酚底物流相容的烃相组成，并且具有低于粗制酚底物流密度的组合密度 酚底物流; 将可分离的粗酚底物流分离成烃相和含有中和盐的水相; 由此与分离前存在的中和盐的量相比，烃相中的中和盐的量减少。

    Method for reduction of potassium in an integrated process for the production of 2,6—NDA
    5.
    发明授权
    Method for reduction of potassium in an integrated process for the production of 2,6—NDA 失效
    在生产2,6-NDA的综合过程中还原钾的方法

    公开(公告)号：US06426430B1

    公开(公告)日：2002-07-30

    申请号：US09643355

    申请日：2000-08-22

    申请人： Robert Lawrence Blackbourn ,  Raymond Lawrence June

    发明人： Robert Lawrence Blackbourn ,  Raymond Lawrence June

    IPC分类号： C07C51347

    CPC分类号： C07C51/487 ,  B01J23/002 ,  B01J23/44 ,  B01J23/80 ,  B01J37/088 ,  C07C51/15 ,  C07C51/265 ,  C07C51/412 ,  C07C51/416 ,  C07C51/42 ,  C07C51/43 ,  C07C51/47 ,  C08G63/189 ,  Y02P20/125 ,  C07C63/38 ,  C07C63/15 ,  C07C63/36 ,  C07C63/26 ,  C07C63/307 ,  C07C63/04

    摘要： Disclosed is a method for reducing alkali metals in aromatic dicarboxylic acids produced by disproportionation or rearrangement of an alkali salt of a mono- or dicarboxylic acid to levels acceptable for polymerization which comprises: a) Washing the aromatic dicarboxylic acid with water in a ratio of about 5:1 water to acid at a temperature of about 70-200° C.; b) Introducing the washed aromatic dicarboxylic acid into a reactor characterized by minimal backmixing, such as a pipe reactor, and reacting the washed aromatic dicarboxylic acid in the pipe reactor at about 100-200° C.; c) Directing the aromatic dicarboxylic acid exiting the pipe reactor to a centrifuge to separate the solid aromatic dicarboxylic acid from water containing contaminants; d) Optionally, combining the solid aromatic dicarboxylic acid again with water in a ratio of about 5:1 at a temperature of about 100-200° C. to further reduce levels of alkali metals.

    摘要翻译： 公开了一种通过将单羧酸或二羧酸的碱金属盐的歧化或重排生成的芳族二羧酸中的碱金属还原为聚合可接受的水平的方法，该方法包括：a）以约1:1的比例用水洗涤芳族二羧酸 5：1的水在约70-200℃的温度下酸化; b）将经洗涤的芳族二羧酸引入反应器，其特征在于最小的回混，例如管式反应器，并将经洗涤的芳族二羧酸在管道 反应器在约100-200℃; c）使离开管式反应器的芳族二羧酸定向离心机，以将固体芳族二羧酸与含有污染物的水分离; d）任选地，将固体芳族二羧酸再次与水结合 在约100-200℃的温度下约5:1的比例，以进一步降低碱金属的含量。

    Removal of salts in the manufacture of phenolic compound
    6.
    发明授权
    Removal of salts in the manufacture of phenolic compound 失效
    去除酚类化合物制造中的盐

    公开(公告)号：US06720461B2

    公开(公告)日：2004-04-13

    申请号：US09728275

    申请日：2000-12-01

    申请人： Austin Dale Taggart, II ,  Edgar Donald Allan ,  Roberto Carlos Longoria ,  David Werner Daum ,  Robert Lawrence Blackbourn

    发明人： Austin Dale Taggart, II ,  Edgar Donald Allan ,  Roberto Carlos Longoria ,  David Werner Daum ,  Robert Lawrence Blackbourn

    IPC分类号： C07C3768

    CPC分类号： C07C37/685 ,  C07C37/08 ,  C07C39/04

    摘要： There is provided a process for the manufacture of phenolic compounds by separating a neutralized aralkyl hydroperoxide cleavage mass stream containing salts of neutralization into a crude ketone stream and a crude phenolic stream containing the salts of neutralization; separating the crude phenolic stream into a concentrated phenolic-rich stream, enriched in phenolic compounds, and a crude phenolic bottoms stream enriched in tars and alpha methyl styrene dimers, each compared to the crude phenolic stream, said crude phenolic bottoms stream containing salts of neutralization; to the crude phenolic bottoms stream, adding water and a diluent composition, thereby forming a phase separable crude phenolic bottoms stream, said diluent composition comprised of hydrocarbons phase compatible with the crude phenolic bottoms stream and having a combined density lower than the density of the crude phenolic bottoms stream; separating the separable crude phenolic bottoms stream into a hydrocarbon phase and an aqueous phase containing salts of neutralization; whereby the amount of salts of neutralization in the hydrocarbon phase is reduced compared to the amount of salts of neutralization present prior to separation.

    摘要翻译： 提供了一种通过将含有中和盐的中和的芳烷基氢过氧化物切割质量流分离成粗酮物流和含有中和盐的粗酚物流来制备酚类化合物的方法; 将粗酚流分离成富含酚类化合物的富含浓酚的料流，以及富含焦油和α-甲基苯乙烯二聚体的粗酚底物流，其与粗酚流相比，所述粗酚底物流含有中和盐 ; 加入水和稀释剂组合物，从而形成可分离的粗酚底物流，所述稀释剂组合物由与粗酚底物流相容的烃相组成，并且具有低于粗制酚底物流密度的组合密度 酚底物流; 将可分离的粗酚底物流分离成烃相和含有中和盐的水相; 由此与分离前存在的中和盐的量相比，烃相中的中和盐的量减少。

    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol
    7.
    发明授权
    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中形成的MW176环状缩醛的去除方法

    公开(公告)号：US06969779B2

    公开(公告)日：2005-11-29

    申请号：US10676690

    申请日：2003-10-01

    申请人： Stephen Edward Brewer ,  Zaida Diaz ,  Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin ,  Robert Lawrence Blackbourn

    发明人： Stephen Edward Brewer ,  Zaida Diaz ,  Joseph Broun Powell ,  Paul Richard Weider ,  Glenn Charles Komplin ,  Robert Lawrence Blackbourn

    IPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C27/04 ,  C07C27/26 ,  C07C29/14 ,  C07C29/74 ,  C07C31/18

    CPC分类号： C07C29/141 ,  C07C29/80 ,  C07C29/88 ,  C07C31/205

    摘要： The present invention is an improvement upon the process for the production of 1,3-propanediol (PDO) wherein an aqueous solution of 3-hydroxypropanal (HPA) is formed, and the HPA is subjected to hydrogenation to produce a crude PDO mixture comprising PDO, water, MW176 acetal, and high and low volatility materials, wherein the crude PDO mixture is dried to produce a first overhead stream comprising water and some high volatility materials and a dried crude PDO mixture as a first distillate bottoms stream comprising PDO, MW176 acetal, and low volatility materials, and wherein the dried crude PDO mixture is distilled to produce a second overhead stream comprising some high volatility materials, a middle stream comprising PDO and MW176 acetal, and a second distillate bottoms stream comprising PDO and low volatility materials. The improvement on this process comprises treating the crude PDO mixture and/or the dried crude PDO mixture and/or the PDO product with an acidic zeolite, an acid form cation exchange resin, or a soluble acid to convert the MW176 cyclic acetal to more volatile materials which can be easily separated from PDO by distillation.

    摘要翻译： 本发明是制备其中形成3-羟基丙醛（HPA）的水溶液的1,3-丙二醇（PDO）的方法的改进，并且将HPA进行氢化以制备包含PDO的粗制PDO混合物 ，水，MW176缩醛和高低挥发性材料，其中将粗PDO混合物干燥以产生包含水和一些高挥发性材料的第一塔顶料流，以及干燥的粗PDO混合物作为包含PDO，MW176缩醛的第一馏出物塔底料流 和低挥发性材料，并且其中将干燥的粗PDO混合物蒸馏以产生包含一些高挥发性材料的第二塔顶料流，包含PDO和MW176缩醛的中间料流和包含PDO和低挥发性材料的第二馏出物塔底料流。 该方法的改进包括用酸性沸石，酸形阳离子交换树脂或可溶性酸处理粗PDO混合物和/或干燥的粗PDO混合物和/或PDO产物，以将MW176环状缩醛转化为更易挥发的 可以通过蒸馏容易地与PDO分离的材料。