利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.022 秒)

    Process for producing 2-hydroxyphenyl lower alkyl ketones
    3.
    发明授权
    Process for producing 2-hydroxyphenyl lower alkyl ketones 失效
    2-羟基苯基低级烷基酮的制备方法

    公开(公告)号：US4652683A

    公开(公告)日：1987-03-24

    申请号：US803195

    申请日：1985-12-02

    申请人： Ioan Nicolau ,  Adolfo Aguilo

    发明人： Ioan Nicolau ,  Adolfo Aguilo

    IPC分类号： B01J29/035 ,  B01J29/40 ,  C07C45/46 ,  C07C45/54

    CPC分类号： C07C45/46 ,  B01J29/035 ,  B01J29/40 ,  C07C45/54

    摘要： A process is provided for the production of 2-hydroxyphenyl lower alkyl ketones, e.g. 2-hydroxyacetophenone, by reacting phenol and a lower alkanoic acid, e.g. acetic acid or an ester of phenol and a lower alkanoic acid, e.g. phenyl acetate, in the presence of a silicalite catalyst containing about 700 to 14000 ppm of alumina, which has been calcined at least once from the as synthesized form. The reaction is preferably conducted in the vapor phase in the presence of an inert gas such as nitrogen.

    摘要翻译： 提供了制备2-羟基苯基低级烷基酮的方法，例如 2-羟基苯乙酮，通过使苯酚和低级链烷酸反应，例如 乙酸或苯酚和低级链烷酸的酯，例如 在含有约700至14000ppm氧化铝的硅沸石催化剂存在下，将其从合成形式中煅烧至少一次。 反应优选在惰性气体如氮气存在下在气相中进行。

    Process for producing methyl formate
    4.
    发明授权
    Process for producing methyl formate 失效
    甲酸甲酯生产方法

    公开(公告)号：US4480122A

    公开(公告)日：1984-10-30

    申请号：US423977

    申请日：1982-09-27

    申请人： Theodore Horlenko ,  Adolfo Aguilo

    发明人： Theodore Horlenko ,  Adolfo Aguilo

    IPC分类号： C07C67/39 ,  C07C67/40 ,  C07C69/06

    CPC分类号： C07C67/39 ,  C07C67/40 ,  Y10S502/524

    摘要： A process for producing methyl formate is described by the dehydrogenation of methanol over a catalyst produced by reducing a precursor comprising copper oxide and a spinel structure support comprising the oxides of zinc and aluminum, said precursor containing 10 to 80 percent copper.

    摘要翻译： 通过甲醇脱氢催化剂描述生产甲酸甲酯的方法，所述催化剂通过还原包含氧化铜的前体和包含锌和铝的氧化物的尖晶石结构载体制备，所述前体含有10至80％的铜。

    Methanol carbonylation process
    5.
    发明授权
    Methanol carbonylation process 失效
    甲醇羰基化工艺

    公开(公告)号：US5144068A

    公开(公告)日：1992-09-01

    申请号：US615846

    申请日：1991-01-07

    申请人： Brad L. Smith ,  G. Paull Torrence ,  Adolfo Aguilo ,  James S. Alder

    发明人： Brad L. Smith ,  G. Paull Torrence ,  Adolfo Aguilo ,  James S. Alder

    IPC分类号： C07C51/12

    CPC分类号： C07C51/12

    摘要： An alcohol such as methanol is reacted with carbon monoxide in a liquid reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions. With a finite concentration of water in the reaction medium the product is the carboxylic acid instead of, for example, the anhydride. The present reaction system not only provides an acid product of unusually low water content at unexpectedly favorable reaction rates but also, whether the water content is low or, as in the case of prior-art acetic acid technology, relatively high, is characterized by unexpectedly high catalyst stability; i.e., it is resistant to catalyst precipitation out of the reaction medium.

    摘要翻译： 在含有用碘化物盐，特别是碘化锂稳定的铑催化剂的液体反应介质中，与甲醇一起使用醇与一氧化碳一起与特定比例的烷基碘如甲基碘和乙酸烷基酯如乙酸甲酯反应。 在反应介质中有限浓度的水，产物是羧酸，而不是例如酸酐。 本反应体系不仅提供了出乎意料的良好反应速率的异常低水含量的酸产物，而且无论水含量低，或者如现有技术乙酸技术的情况相对较高，其特征在于意外地 高催化剂稳定性; 即耐反应介质中的催化剂沉淀。

    Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol
    6.
    发明授权
    Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol 失效
    通过甲醇的羰基化将氢气加入生产乙酸的一氧化碳进料气中

    公开(公告)号：US4994608A

    公开(公告)日：1991-02-19

    申请号：US82945

    申请日：1987-08-05

    申请人： G. Paull Torrence ,  Joel D. Hendricks ,  Dennis D. Dickinson ,  Adolfo Aguilo

    发明人： G. Paull Torrence ,  Joel D. Hendricks ,  Dennis D. Dickinson ,  Adolfo Aguilo

    IPC分类号： C07B61/00 ,  B01J23/00 ,  B01J23/46 ,  B01J31/00 ,  B01J31/20 ,  C07C51/00 ,  C07C51/12 ,  C07C53/08 ,  C07C67/00

    CPC分类号： C07C51/12

    摘要： The carbonylation of an alcohol to produce a carboxylic acid, especially methanol to produce acetic acid, in a low water reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions is improved by the addition of hydrogen in the feed gas to the low water reaction medium to obtain a reactor hydrogen partial pressure of at least about 4 psi. The presence of hydrogen in the reaction medium increases significantly the carbonylation reaction rate and reduces formation of byproduct carbon dioxide. The present reaction system not only provides an acid product of unusually low water content at unexpectedly favorable reaction rates but also, whether the water content is low or, as in the case of prior-art acetic acid technology, relatively high, is characterized by unexpectedly high catalyst stability; i.e., it is resistant to catalyst precipitation out of the reaction medium.

    摘要翻译： 在含有用碘化物盐特别是碘化锂稳定的铑催化剂的低水反应介质中，醇的羰基化以产生羧酸，特别是甲醇以制备乙酸，以及烷基碘如甲基碘和乙酸烷基酯等稳定的铑催化剂 因为通过在低水反应介质的进料气体中加入氢气以获得至少约4psi的反应器氢分压来改善特定比例的乙酸甲酯。 反应介质中氢的存在显着提高了羰基化反应速率，并减少了副产物二氧化碳的形成。 本反应体系不仅提供出乎意料的良好反应速率的异常低水含量的酸产物，而且无论水含量低，或者如现有技术乙酸技术的情况相对较高，其特征在于意想不到 高催化剂稳定性; 即耐反应介质中的催化剂沉淀。

    Rhodium and iodine recovery method
    8.
    发明授权
    Rhodium and iodine recovery method 失效
    铑和碘回收法

    公开(公告)号：US4628041A

    公开(公告)日：1986-12-09

    申请号：US827699

    申请日：1986-02-10

    申请人： Brad L. Smith ,  George P. Torrence ,  Adolfo Aguilo

    发明人： Brad L. Smith ,  George P. Torrence ,  Adolfo Aguilo

    IPC分类号： B01J27/32 ,  C07C51/12 ,  B01J38/68 ,  B01J27/08 ,  C07C53/08

    CPC分类号： B01J27/32 ,  C07C51/12 ,  Y02P20/584

    摘要： A process for the recovery of rhodium and iodine values and the separation of rhodium from corrosion metal salts in the manufacture of acetic acid by the carbonylation of methanol wherein the reaction mixture contains from about none to about 20 wt % of water, from about 2 to about 20 wt % of alkali metal or alkaline earth metal iodide, methanol, acetic acid, methyl iodide, and carbon monoxide which comprises: (1) removing at least a portion of the reaction solution from the reactor, (2) removing at least a portion of the product acetic acid from the portion in (1) by distillation, (3) adding an excess of methyl acetate to the product depleted material in (2) and heating the resultant mixture to a sufficiently high temperature to convert the methyl acetate to methyl iodide (4) removing the resulting methyl iodide by distillation, (5) continuing to heat the resulting mixture at a temperature and time sufficient to precipitate the rhodium as rhodium iodide, and (6) separating the rhodium iodide and returning it to the reaction mixture.

    摘要翻译： 回收铑和碘值的方法以及通过羰基化甲醇在乙酸制造中从腐蚀金属盐中分离铑的方法，其中反应混合物含有约不超过约20重量％的水，约2至 约20重量％的碱金属或碱土金属碘化物，甲醇，乙酸，甲基碘和一氧化碳，其包括：（1）从反应器中除去至少一部分反应溶液，（2）除去至少一种 通过蒸馏从（1）中的部分产物乙酸的部分，（3）向（2）中的产物贫化物质中加入过量的乙酸甲酯，并将所得混合物加热至足够高的温度以将乙酸甲酯转化为 甲基碘（4）通过蒸馏除去得到的甲基碘，（5）在足以使铑作为碘化铑沉淀的温度和时间继续加热所得混合物，和（6）分离铑 碘化物并将其返回到反应混合物中。