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    Aldehyde oxidation processes
    21.
    发明授权
    Aldehyde oxidation processes 有权
    醛氧化过程

    公开(公告)号：US09428435B2

    公开(公告)日：2016-08-30

    申请号：US14568667

    申请日：2014-12-12

    Applicant: Eastman Chemical Company

    Inventor： Damon Ray Billodeaux ,  Kenneth Wayne Hampton, Jr. ,  Chad A. Johnson

    IPC: C07C51/235 ,  C07C51/16

    CPC classification number: C07C51/235 ,  C07C51/16 ,  C07C67/44 ,  C07C53/124

    Abstract: The oxidation of isobutyraldehyde produces isobutyric acid and byproducts, such as isopropyl formate. A process of reducing the isopropyl formate byproduct and other byproducts in the oxidation of isobutyraldehyde is described. The process uses a carbonyl compound, such as acetone, to reduce byproduct levels in the resulting product. Process for use of static mixers in oxidation reactions of aldehydes are also provided.

    Abstract translation: 异丁醛的氧化产生异丁酸和副产物，如甲酸异丙酯。 描述了在异丁醛氧化中还原甲酸异丙酯副产物和其它副产物的方法。 该方法使用羰基化合物，例如丙酮，以减少所得产物中的副产物水平。 还提供了在醛的氧化反应中使用静态混合器的方法。

    Production of cyclic acetals or ketals using liquid-phase acid catalysts
    22.
    发明授权
    Production of cyclic acetals or ketals using liquid-phase acid catalysts 有权
    使用液相酸催化剂制备环状缩醛或缩酮

    公开(公告)号：US09394271B2

    公开(公告)日：2016-07-19

    申请号：US14605067

    申请日：2015-01-26

    Applicant: Eastman Chemical Company

    Inventor： Daniel Latham Terrill ,  Brian David McMurray ,  Damon Ray Billodeaux ,  James Lon Little ,  Adam Scott Howard

    IPC: C07D317/12

    CPC classification number: C07D317/12

    Abstract: A liquid composition containing at least 2 mole % of water, at least 50 mole % of polyhydroxyl compounds, at least 3 mole % of cyclic compounds, and at least 0.01 mole % of a homogeneous acid catalyst. The mole percentages are based on the moles of all liquids in the composition. The liquid composition optionally contains up to 20 mole % of carbonyl compounds, based on the number of moles of the cyclic compounds. The cumulative amount of any other liquid ingredient in the liquid composition does not exceed 10 mole %. The cyclic compounds include cyclic acetals, cyclic ketals, or a combination thereof. The liquid composition is derived from a process for making cyclic compounds by feeding aldehyde or ketone compounds and polyhydroxyl compounds to a reaction vessel at a molar ratio of polyhydroxyl compounds to aldehyde or ketone compounds of at least 3:1, reacting these compounds in the presence of a homogeneous acid catalyst to generate a liquid phase homogeneous reaction mixture containing the acid catalyst without separating water from the reaction mixture as it is being formed in the reaction mixture, withdrawing the liquid phase homogeneous reaction mixture from the reaction vessel as a liquid product stream, and feeding the liquid reaction product stream to a distillation column to separate cyclic acetal or ketal compounds from unreacted polyhydroxyl compounds.

    Abstract translation: 含有至少2摩尔％的水，至少50摩尔％的多羟基化合物，至少3摩尔％的环状化合物和至少0.01摩尔％的均相酸催化剂的液体组合物。 摩尔百分比基于组合物中所有液体的摩尔数。 基于环状化合物的摩尔数，液体组合物任选地含有至多20摩尔％的羰基化合物。 液体组合物中任何其它液体成分的累积量不超过10摩尔％。 环状化合物包括环状缩醛，环状缩酮或其组合。 液体组合物衍生自通过将醛或酮化合物和多羟基化合物以多羟基化合物与醛或酮化合物的摩尔比至少为3:1的反应容器进行制备环状化合物的方法，使这些化合物在存在下反应 的均相酸催化剂，以产生含有酸催化剂的液相均相反应混合物，而不会在反应混合物中形成反应混合物时分离水，作为液体产物流从反应容器中取出液相均匀反应混合物 ，并将液体反应产物流进料到蒸馏塔中以从未反应的多羟基化合物中分离出环状缩醛或缩酮化合物。

    DUAL CATALYST SYSTEM FOR THE SELF-CONDENSATION OF ALCOHOLS
    24.
    发明申请
    DUAL CATALYST SYSTEM FOR THE SELF-CONDENSATION OF ALCOHOLS 有权
    用于酒精自发冷凝的双催化剂体系

    公开(公告)号：US20140088326A1

    公开(公告)日：2014-03-27

    申请号：US13624035

    申请日：2012-09-21

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： David William Norman ,  Damon Ray Billodeaux ,  Melissa Dawn Page

    IPC: C07C29/141 ,  C07C45/45

    CPC classification number: C07C29/175 ,  C07C45/002 ,  C07C45/45 ,  C07C45/74 ,  C07C51/02 ,  C07C47/06 ,  C07C47/02 ,  C07C47/21 ,  C07C31/125

    Abstract: Disclosed is a process for the production of higher aldehydes from lower alcohols using a two-stage vapor phase heterogeneous catalyst system. Ethanol feeds afford aldehydes such as butyraldehyde and crotonaldehyde while butanol feeds yield 2-ethylhexanal and 2-ethylhexenal. Higher product selectivities are obtained when the alcohol is first dehydrogenated in the upper catalyst stage followed by aldol condensation of the resulting lower aldehyde to a higher aldehyde.

    Abstract translation: 公开了一种使用两级气相多相催化剂体系从低级醇生产较高级醛的方法。 乙醇进料得到醛类如丁醛和巴豆醛，而丁醇进料产生2-乙基己醛和2-乙基己烯醛。 当醇在上部催化剂阶段首先被脱氢，然后将所得到的低级醛醛醛缩合成高级醛时，获得较高的产物选择性。

    Processes for producing carboxylic acids
    25.
    发明授权
    Processes for producing carboxylic acids 有权

    公开(公告)号：US12152005B2

    公开(公告)日：2024-11-26

    申请号：US17441726

    申请日：2020-03-25

    Applicant: EASTMAN CHEMICAL COMPANY

    Inventor： Damon Ray Billodeaux ,  Kenneth Wayne Hampton, Jr. ,  Magnus Alexander Pauly

    IPC: C07C51/09

    Abstract: Processes are disclosed for preparing carboxylic acids from organic esters, the processes comprising contacting an ester with water in the presence of an acid catalyst and a homogenizing solvent at conditions effective to form a carboxylic acid. The homogenizing solvent is present in an amount sufficient to form a single-phase reaction mixture comprising the ester, water, and homogenizing solvent. The homogenizing solvent may be selected from acetonitrile, dimethyl sulfoxide, and 1,4-dioxane.

    PRODUCTION OF CYCLIC ACETALS OR KETALS USING SOLID ACID CATALYSTS
    28.
    发明申请
    PRODUCTION OF CYCLIC ACETALS OR KETALS USING SOLID ACID CATALYSTS 审中-公开
    使用固体酸催化剂生产循环乙醇或咖啡

    公开(公告)号：US20140330029A1

    公开(公告)日：2014-11-06

    申请号：US14337544

    申请日：2014-07-22

    Applicant: Eastman Chemical Company

    Inventor： Daniel Latham Terrill ,  Brian David McMurray ,  Damon Ray Billodeaux ,  James Lon Little ,  Adam Scott Howard

    IPC: C07D323/00 ,  C07D319/12 ,  C07D321/08 ,  C07D317/12

    CPC classification number: C07D323/00 ,  C07D317/12 ,  C07D319/12 ,  C07D321/06 ,  C07D321/08

    Abstract: A process for making a cyclic compounds such as cyclic acetal or cyclic ketones by feeding aldehyde or ketone compounds and polyhydroxyl compounds to a reaction zone at a molar ratio of polyhydroxyl compounds to aldehyde or ketone compounds of at least 3:1, reacting these compounds in the presence of a solid acid such as an acidic ion exchange resin, to generate a liquid reaction mixture without separating water from the reaction mixture as it is being formed in the reaction mixture, withdrawing the liquid reaction mixture from the reaction zone as a liquid product stream, and feeding the liquid reaction product stream to a distillation column to separate cyclic acetal compounds from unreacted polyhydroxyl compounds, and optionally recycling back the unreacted polyhydroxyl compounds to the reaction zone. The process produces cyclic acetal compounds in yields of at least 90% with long catalyst life. The process is also suitable to make cyclic ketals from ketone compounds.

    Abstract translation: 通过将醛或酮化合物和多羟基化合物以多羟基化合物与醛或酮化合物的摩尔比至少为3:1的比例将醛或酮化合物和多羟基化合物进料到反应区中来制备环状化合物如环缩醛或环酮的方法，使这些化合物在 固体酸如酸性离子交换树脂的存在，以便在反应混合物中形成液体反应混合物而不从反应混合物中分离出水，以液体产物的形式从反应区抽出液体反应混合物 流，并将液体反应产物流进料到蒸馏塔中以从未反应的多羟基化合物中分离出环状缩醛化合物，并任选地将未反应的多羟基化合物回收到反应区。 该方法产生环状缩醛化合物，产率至少为90％，催化剂寿命长。 该方法也适用于由酮化合物制备环状缩酮。

    Dual catalyst system for the self-condensation of alcohols
    29.
    发明授权
    Dual catalyst system for the self-condensation of alcohols 有权
    用于醇的自缩合的双催化剂体系

    公开(公告)号：US08809594B2

    公开(公告)日：2014-08-19

    申请号：US13624035

    申请日：2012-09-21

    Applicant: Eastman Chemical Company

    Inventor： David William Norman ,  Damon Ray Billodeaux ,  Melissa Dawn Page

    IPC: C07C45/45 ,  C07C29/141

    CPC classification number: C07C29/175 ,  C07C45/002 ,  C07C45/45 ,  C07C45/74 ,  C07C51/02 ,  C07C47/06 ,  C07C47/02 ,  C07C47/21 ,  C07C31/125

    Abstract: Disclosed is a process for the production of higher aldehydes from lower alcohols using a two-stage vapor phase heterogeneous catalyst system. Ethanol feeds afford aldehydes such as butyraldehyde and crotonaldehyde while butanol feeds yield 2-ethylhexanal and 2-ethylhexenal. Higher product selectivities are obtained when the alcohol is first dehydrogenated in the upper catalyst stage followed by aldol condensation of the resulting lower aldehyde to a higher aldehyde.

    Abstract translation: 公开了一种使用两级气相多相催化剂体系从低级醇生产较高级醛的方法。 乙醇进料得到醛类如丁醛和巴豆醛，而丁醇进料产生2-乙基己醛和2-乙基己烯醛。 当醇在上部催化剂阶段首先被脱氢，然后将所得到的低级醛醛醛缩合成高级醛时，获得较高的产物选择性。

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