Process for producing terephthalic acid
    1.
    发明授权
    Process for producing terephthalic acid 有权
    对苯二甲酸生产方法

    公开(公告)号:US09266809B2

    公开(公告)日:2016-02-23

    申请号:US14535375

    申请日:2014-11-07

    CPC classification number: C07C51/265 C07C51/42 Y02P20/52 Y02P20/542 C07C63/26

    Abstract: A solid terephthalic acid composition and a process for producing terephthalic acid from para-xylene. The process comprises forming a mixture comprising the para-xylene, a solvent, a bromine source, and a catalyst; and oxidizing the para-xylene by contacting the mixture with an oxidizing agent at oxidizing conditions to produce a solid oxidation product comprising terephthalic acid, para-toluic acid, 4-carboxybenzaldehyde. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an dialkyl imidazolium ionic liquid; and the catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium. The solid terephthalic acid composition comprises, less than about 4,000 ppm-wt 4-carboxybenzaldehyde content, and more than about 2,000 ppm-wt a para-toluic acid.

    Abstract translation: 固体对苯二甲酸组合物和由对二甲苯生产对苯二甲酸的方法。 该方法包括形成包含对二甲苯,溶剂,溴源和催化剂的混合物; 并通过在氧化条件下将氧化剂与氧化剂接触来氧化对二甲苯以产生包含对苯二甲酸,对甲苯甲酸,4-羧基苯甲醛的固体氧化产物。 溶剂包括具有1至7个碳原子的羧酸和二烷基咪唑鎓离子液体; 催化剂包括钴,钛,锰,铬,铜,镍,钒,铁,钼,锡,铈和锆中的至少一种。 固体对苯二甲酸组合物包含小于约4,000ppm重量的4-羧基苯甲醛含量和大于约2,000ppm重量的对甲苯甲酸。

    PROCESS FOR PYROLYSIS OF COAL
    7.
    发明申请
    PROCESS FOR PYROLYSIS OF COAL 审中-公开
    煤焦化过程

    公开(公告)号:US20150136656A1

    公开(公告)日:2015-05-21

    申请号:US14464300

    申请日:2014-08-20

    Applicant: UOP LLC

    CPC classification number: C10G1/002 C10G1/02 C10G1/06 C10G1/08

    Abstract: A process for pyrolyzing a coal feed is described. The coal feed is pyrolyzed into a coal tar stream and a coke stream in a pyrolysis zone. The coal tar stream is fractionated into at least a pitch stream. The pitch stream is hydrogenated, and the hydrogenated pitch stream is recycled into the pyrolysis zone. The hydrocarbon stream may be processed further by at least one of hydrotreating, hydrocracking, fluid catalytic cracking, alkylation, and transalkylation.

    Abstract translation: 描述了一种用于热解煤进料的方法。 煤进料在热解区热解成煤焦油流和焦炭流。 煤焦油流被分馏成至少沥青流。 沥青流被氢化,氢化沥青流再循环到热解区中。 烃流可以通过加氢处理,加氢裂化,流化催化裂化,烷基化和烷基转移中的至少一种进一步加工。

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