Iridium-catalyzed carbonylation process for the production of a
carboxylic acid
    4.
    发明授权
    Iridium-catalyzed carbonylation process for the production of a carboxylic acid 失效
    用于制备羧酸的铱催化羰基化方法

    公开(公告)号:US5932764A

    公开(公告)日:1999-08-03

    申请号:US984996

    申请日:1997-12-04

    CPC分类号: C07C51/12

    摘要: A process for the production of a carboxylic acid having n+1 carbon atoms comprises (a) carbonylating with carbon monoxide in a first reaction zone at elevated temperature and pressure an alkyl alcohol having n carbon atoms and/or a reactive derivative thereof to produce a carboxylic acid having n+1 carbon atoms in a liquid reaction composition comprising carboxylic acid product, an iridium catalyst, an alkyl halide co-catalyst, water, an ester of the carboxylic acid product and the alkyl alcohol, and optionally one or more promoters, (b) withdrawing from the first reaction zone at least a portion of the liquid reaction composition together with dissolved and/or entrained carbon monoxide, and passing at least a portion of the withdrawn liquid reaction composition and carbon monoxide to a second reaction zone, ((c)reacting at least 1% of the dissolved and/or entrained carbon monoxide in the withdrawn reaction composition by further carbonylation at elevated temperature and pressure in the second reaction zone to produce further carboxylic acid product.

    摘要翻译: 制备具有n + 1个碳原子的羧酸的方法包括(a)在高温和高压下在第一反应区中用一氧化碳羰基化具有n个碳原子的烷基醇和/或其反应性衍生物以产生 在包含羧酸产物,铱催化剂,烷基卤助催化剂,水,羧酸产物的酯和烷基醇的液体反应组合物中具有n + 1个碳原子的羧酸,以及任选的一种或多种助催化剂, (b)将液体反应组合物的至少一部分与溶解和/或夹带的一氧化碳一起排出第一反应区,并将至少一部分抽出的液体反应组合物和一氧化碳通入第二反应区( (c)通过在升高的温度和压力下进一步羰基化使至少1%的溶解和/或夹带的一氧化碳在撤回的反应组合物中反应 他的第二反应区产生更多的羧酸产物。

    Preparation of components for transportation fuels
    10.
    发明授权
    Preparation of components for transportation fuels 失效
    运输燃料组分的制备

    公开(公告)号:US06881325B2

    公开(公告)日:2005-04-19

    申请号:US09779287

    申请日:2001-02-08

    IPC分类号: C10G67/12 C10G27/04

    CPC分类号: C10G67/12

    摘要: Economical processes are disclosed for the production of components for refinery blending of transportation fuels by selective oxidation of feedstocks comprising a mixture of hydrocarbons, sulfur-containing and nitrogen-containing organic compounds. Oxidation feedstock is contacted with a soluble quaternary ammonium salt containing halogen, sulfate, or bisulfate anion, and an immiscible aqueous phase comprising a source of hydrogen peroxide, and at least one member of the group consisting of phosphomolybdic acid and phosphotungstic acid, in a liquid reaction mixture under conditions suitable for reaction of one or more of the sulfur-containing and/or nitrogen-containing organic compounds. Blending components containing less sulfur and/or less nitrogen than the oxidation feedstock are recovered from the reaction mixture. Advantageously, at least a portion of the immiscible acid-containing phase is recycled to the oxidation.

    摘要翻译: 公开了经济方法,用于通过选择性氧化包含烃,含硫和含氮有机化合物的混合物的原料来生产用于运输燃料的炼油厂混合的组分。 氧化原料与含有卤素,硫酸盐或硫酸氢盐阴离子的可溶性季铵盐和包含过氧化氢源的不混溶水相和至少一种由磷钼酸和磷钨酸组成的组中的一种在液体中接触 反应混合物在适于一种或多种含硫和/或含氮有机化合物的反应条件下进行。 从反应混合物中回收含有比氧化原料少的硫和/或更少的氮的混合组分。 有利地,至少一部分不混溶的含酸相被再循环至氧化。