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    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof
    1.
    发明授权
    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof 失效
    通过氧化烷基芳族烃或其部分氧化的中间体制备芳族羧酸的方法

    公开(公告)号：US06194607B1

    公开(公告)日：2001-02-27

    申请号：US09453537

    申请日：1999-12-03

    申请人： Sung-Hwa Jhung ,  Youn-Seok Park ,  Ki-Hwa Lee ,  Jin Sun Yoo ,  Jong-Hyun Chae

    发明人： Sung-Hwa Jhung ,  Youn-Seok Park ,  Ki-Hwa Lee ,  Jin Sun Yoo ,  Jong-Hyun Chae

    IPC分类号： G07C5116

    CPC分类号： C07C51/265 ,  Y02P20/52 ,  C07C63/26 ,  C07C63/16

    摘要： An improved production method of aromatic carboxylic acid products of significantly improved yield and quality by oxidizing alkyl aromatic substrates or their partially oxidized intermediates in a conventional MC-type catalyst system modified to contain additional components such as alkali metal or alkaline earth metal in an acetic acid medium in a feed gas containing oxygen and optionally carbon dioxide. Since carbon dioxide functioned as a co-oxidant along with oxygen in the oxidation reaction, the oxidation reaction proceeds more selectively to produce the carboxylic acid product much faster under milder reaction conditions over the conventional MC-type oxidation. In particular, the oxidation of para-xylene carried out by the novel present method enabled production of terephthalic acid of higher yield and enhanced quality, which were improved far more than the extent that generally could be expected by current PTA producers. The present invention also provides an effective purification process to produce highly pure terephthalic acid or isophthalic acid by the oxidation of impurities such as 4-carboxybenzaldehyde and para-toluic acid or 3-carboxybenzaldehyde and meta-toluic acid contaminated in crude terephthalic acid and isophthalic acid product, respectively.

    摘要翻译： 通过在常规的MC型催化剂体系中氧化烷基芳香族基质或其部分氧化的中间体，在醋酸中含有另外的成分如碱金属或碱土金属，改进了产率和质量的改善的芳族羧酸产物的生产方法 在含有氧气和任选的二氧化碳的进料气体中的介质。 由于二氧化碳在氧化反应中作为辅助氧化剂与氧气一起起作用，因此与常规的MC型氧化相比，在较温和的反应条件下，氧化反应更有选择性地进行得更快地产生羧酸产物。 特别地，通过新颖的本发明方法进行的对二甲苯的氧化使得能够生产更高产率和更高质量的对苯二甲酸，其得到的改善远远超过现有PTA生产者普遍预期的程度。 本发明还提供了一种有效的纯化方法，通过氧化杂质如4-羧基苯甲醛和对甲苯甲酸或3-羧基苯甲醛和在对苯二甲酸和间苯二甲酸中污染的间甲苯甲酸，产生高纯对苯二甲酸或间苯二甲酸 产品。

    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas
    2.
    发明授权
    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas 失效
    通过用含二氧化碳气体氧化烷基芳族化合物或其部分氧化的中间体来生产芳族羧酸的方法

    公开(公告)号：US06180822B2

    公开(公告)日：2001-01-30

    申请号：US09453536

    申请日：1999-12-03

    申请人： Sung-Hwa Jhung ,  Ki-Hwa Lee ,  Youn-Seok Park ,  Jin Sun Yoo

    发明人： Sung-Hwa Jhung ,  Ki-Hwa Lee ,  Youn-Seok Park ,  Jin Sun Yoo

    IPC分类号： C07C5116

    CPC分类号： C07C51/265 ,  Y02P20/52 ,  C07C63/307 ,  C07C63/06 ,  C07C63/15 ,  C07C63/313 ,  C07C63/333 ,  C07C63/16 ,  C07C63/38 ,  C07C63/26

    摘要： An improved production method of aromatic carboxylic acid products of significantly improved yield and quality, the method including oxidizing alkyl aromatic substrates or their partially oxidized intermediates in a catalyst system containing a conventional catalyst and, if deemed necessary, additional components such as a transition metal or lanthanide series metal, in an acetic acid medium, with a feed gas containing both oxygen and carbon dioxide. Since carbon dioxide functions as a co-oxidant along with oxygen in the oxidation reaction, the oxidation reaction proceeds more selectively to produce the carboxylic acid product much faster under milder reaction conditions as compared to the conventional oxidation. The present invention also can be utilized as an effective purification process to produce highly pure terephthalic acid or isophthalic acid by oxidation of impurities such as 4-carboxybenzaldehyde and para-toluic acid or 3-carboxybenzaldehyde and meta-toluic acid which are contaminated in crude terephthalic acid and isophthalic acid products, respectively.

    摘要翻译： 一种改进的产率和质量显着提高的芳族羧酸产物的生产方法，包括在含有常规催化剂的催化剂体系中氧化烷基芳族底物或其部分氧化的中间体的方法，如果需要，还可加入另外的组分如过渡金属或 镧系元素金属，在乙酸介质中，含有含氧和二氧化碳的进料气体。 由于二氧化碳在氧化反应中作为氧气与氧气一起起作用，所以与常规氧化相比，氧化反应更有选择地进行，以在更温和的反应条件下更快地生成羧酸产物。 本发明还可以用作有效的纯化方法，通过氧化杂质如4-羧基苯甲醛和对甲苯甲酸或3-羧基苯甲醛和间甲苯甲酸来生产高纯对苯二甲酸或间苯二甲酸，这些杂质被粗对苯二甲酸 酸和间苯二酸产品。

    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with oxygen-enriched gas
    3.
    发明授权
    Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with oxygen-enriched gas 失效
    通过用富氧气体氧化烷基芳族化合物或其部分氧化的中间体来生产芳族羧酸的方法

    公开(公告)号：US06175038B1

    公开(公告)日：2001-01-16

    申请号：US09453535

    申请日：1999-12-03

    申请人： Sung-Hwa Jhung ,  Youn-Seok Park

    发明人： Sung-Hwa Jhung ,  Youn-Seok Park

    IPC分类号： C07L5116

    CPC分类号： C07C51/265 ,  C07C63/26 ,  C07C63/24

    摘要： An improved production method of aromatic carboxylic acids of significantly improved yields and quality by oxidizing alkyl aromatic substrates or their partially oxidized intermediates by oxygen-enriched gas in a conventional Co—Mn—Br catalyst system containing additional components such as a transition metal or lanthanide metal component in an aliphatic carboxylic acid having 1˜6 carbon atoms. In other words, a decline in reactivity in the later part of the oxidation reaction and the precipitation of a catalyst such as manganese were effectively deterred by means of incorporating one or more than one type of transition or lanthanide metal components selected from such metals as Ce, Zr, Hf, Fe, Cr, and Mo during the oxidation reaction with oxygen-enriched gas. With this invention, pure aromatic carboxylic acids with white color can be obtained with high selectivity and reactivity by oxidation of substrates with oxygen-enriched gas. The oxidation reaction of alkylaromatic substrates proceeds more selectively with a much faster rate to produce aromatic carboxylic acids of improved quality as compared to those of conventional oxidation processes.

    摘要翻译： 通过在含有附加组分如过渡金属或镧系金属的常规Co-Mn-Br催化剂体系中通过富氧气体氧化烷基芳族基底或其部分氧化的中间体，改进的芳族羧酸的生产方法显着提高了产率和质量 具有1〜6个碳原子的脂族羧酸的组分。 换句话说，氧化反应的后期部分的反应性的降低和催化剂如锰的沉淀通过引入一种或多于一种类型的选自如Ce金属的过渡或镧系元素金属成分而被有效地阻止 ，Zr，Hf，Fe，Cr和Mo在与富氧气体的氧化反应中。 通过本发明，可以通过用富氧气体氧化底物，以高选择性和反应性获得具有白色的纯芳族羧酸。 与常规氧化方法相比，烷基芳族底物的氧化反应以更快的速率更有选择地进行，以产生质量提高的芳族羧酸。

    Method and apparatus for the preparation of porous materials and mixed metal oxides
    4.
    发明申请
    Method and apparatus for the preparation of porous materials and mixed metal oxides 审中-公开
    用于制备多孔材料和混合金属氧化物的方法和装置

    公开(公告)号：US20070014715A1

    公开(公告)日：2007-01-18

    申请号：US11485008

    申请日：2006-07-12

    申请人： Jong-San Chang ,  Sung-Hwa Jhung ,  Young-Kyu Hwang ,  Jin-Soo Hwang

    发明人： Jong-San Chang ,  Sung-Hwa Jhung ,  Young-Kyu Hwang ,  Jin-Soo Hwang

    IPC分类号： C01G23/00

    CPC分类号： C01G23/006 ,  C01B37/02 ,  C01B39/00 ,  C01B39/40 ,  C01B39/54 ,  C01G53/04 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2006/12

    摘要： Disclosed herein is a method for the preparation of porous materials, which can be used not only for a catalyst, an adsorbent, a catalytic support, ion exchange and gas storage, but also for adsorbent of guest molecules due to nanometer spaces (nanospaces), and of mixed metal oxides which are used as functional ceramic materials. More particularly, disclosed is a method for the preparation of porous materials and mixed metal oxides, in which microwave energy is used as a heating source, and a tube free of connection portions is used as a reactor, and the pressure within the reactor is controlled by measuring the pressure of gas remaining after the separation of solid and liquid, so that the method has increased operational stability and reproducibility, makes the control of residence time easy, and can achieve an increase in productivity. Also, disclosed is an apparatus for the continuous preparation of porous materials and mixed metal oxides, which can perform the preparation method.

    摘要翻译： 本文公开了一种制备多孔材料的方法，其不仅可用于催化剂，吸附剂，催化载体，离子交换和气体储存，而且可用于由于纳米空间（纳米空间）引起的客体分子的吸附剂， 和用作功能陶瓷材料的混合金属氧化物。 更具体地，公开了一种制备多孔材料和混合金属氧化物的方法，其中使用微波能量作为加热源，并且使用不具有连接部分的管作为反应器，并且控制反应器内的压力 通过测量分离固体和液体后残留的气体压力，使得该方法具有增加的操作稳定性和再现性，使得停留时间的控制变得容易，并且可以实现生产率的提高。 此外，还公开了可以进行制备方法的连续制备多孔材料和混合金属氧化物的装置。