ACETIC ACID PRODUCTION FROM BIOMASS PYROLYSIS
    28.
    发明申请
    ACETIC ACID PRODUCTION FROM BIOMASS PYROLYSIS 审中-公开
    生物质热解生产乙酸

    公开(公告)号:WO2012091899A1

    公开(公告)日:2012-07-05

    申请号:PCT/US2011/064347

    申请日:2011-12-12

    Inventor: KOCAL, Joseph A.

    CPC classification number: C07C53/08 C07C51/00 C07C51/44

    Abstract: Methods are disclosed for producing, from renewable carbon sources, acetic acid in an economical manner. In particular, these methods are directed to the separation and recovery of acetic acid as a substantial product (e.g., as much as 5% by weight or more) of biomass pyrolysis. For a given commercial biomass pyrolysis unit, the acetic acid yield can represent a significant quantity of that used in a major industrial applications such as purified terephthalic acid (PTA) production. According to some embodiments, pyrolysis conditions and/or flow schemes advantageously improve the recovery of acetic acid for a given purity level.

    Abstract translation: 公开了从可再生碳源以经济的方式生产乙酸的方法。 特别地,这些方法涉及作为生物质热解的实质产物(例如多达5重量%以上)的乙酸的分离和回收。 对于给定的商业生物质热解单元,乙酸产率可以代表在主要工业应用中使用的显着量,例如纯化的对苯二甲酸(PTA)生产。 根据一些实施方案,热解条件和/或流程方案有利地改善了给定纯度水平下乙酸的回收率。

    SOLID TEREPHTHALIC ACID COMPOSITION
    29.
    发明申请
    SOLID TEREPHTHALIC ACID COMPOSITION 审中-公开
    固体正庚酸组合物

    公开(公告)号:WO2012012048A3

    公开(公告)日:2012-04-19

    申请号:PCT/US2011040602

    申请日:2011-06-16

    CPC classification number: C07C51/265 C07C51/43 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。

    MIXTURES USED IN OXIDIZING ALKYL AROMATIC COMPOUNDS
    30.
    发明申请
    MIXTURES USED IN OXIDIZING ALKYL AROMATIC COMPOUNDS 审中-公开
    用于氧化烷基芳香族化合物的混合物

    公开(公告)号:WO2012012046A3

    公开(公告)日:2012-04-12

    申请号:PCT/US2011040515

    申请日:2011-06-15

    CPC classification number: C07C51/265 C07C63/06 C07C63/16 C07C63/26

    Abstract: A process and a mixture for oxidizing an alkyl-aromatic compound comprises forming a mixture comprising the alkyl-aromatic compound, a solvent, a bromine source, and a catalyst; and contacting the mixture with an oxidizing agent at oxidizing conditions to produce an oxidation product comprising at least one of an aromatic aldehyde, an aromatic alcohol, an aromatic ketone, and an aromatic carboxylic acid. The solvent comprises a carboxylic acid having from 1 to 7 carbon atoms and an ionic liquid selected from the group consisting of an imidazolium ionic liquid, a pyridinium ionic liquid, a phosphonium ionic liquid, a tetra alkyl ammonium ionic liquid, and combinations thereof. The catalyst comprises at least one of cobalt, titanium, manganese, chromium, copper, nickel, vanadium, iron, molybdenum, tin, cerium, and zirconium.

    Abstract translation: 用于氧化烷基芳族化合物的方法和混合物包括形成包含烷基芳族化合物,溶剂,溴源和催化剂的混合物; 以及在氧化条件下使混合物与氧化剂接触以产生包含芳族醛,芳族醇,芳族酮和芳族羧酸中的至少一种的氧化产物。 溶剂包含具有1至7个碳原子的羧酸和选自由咪唑鎓离子液体,吡啶鎓离子液体,鏻离子液体,四烷基铵离子液体及其组合组成的组的离子液体。 催化剂包含钴,钛,锰,铬,铜,镍,钒,铁,钼,锡,铈和锆中的至少一种。

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