利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.044 秒)

    Hydrogenated 5-carbon compound and method of making
    1.
    发明授权
    Hydrogenated 5-carbon compound and method of making 失效
    氢化5碳化合物及其制备方法

    公开(公告)号：US5883266A

    公开(公告)日：1999-03-16

    申请号：US8356

    申请日：1998-01-16

    申请人： Douglas C. Elliott ,  John G. Frye

    发明人： Douglas C. Elliott ,  John G. Frye

    IPC分类号： C07D307/06 ,  C07D307/33 ,  C07D309/00 ,  C07C27/00 ,  C07D307/02

    CPC分类号： C07D307/33 ,  C07D307/06

    摘要： The present invention is based upon the surprising discovery that a 5-carbon compound selected from the group of 4-oxopentanoic acid, at least one lactone of 4-oxopentanoic acid, and combinations thereof, may be hydrogenated with a bimetallic catalyst of a noble metal in combination with a second metal and preserve the pendant methyl group. It was further unexpectedly discovered that the same conditions of bimetallic catalyst in the presence of hydrogen are useful for catalyzing the different intermediate reactions for example angelicalactone to gamma-valerolactone and gamma-valerolactone to 1,4-pentanediol. Finally, it was surprising that levulinic acid could be converted to 2-methyltetrahydrofuran with heating in the presence of the bimetallic catalyst and hydrogen in a single process vessel. The method of the present invention unexpectedly produced a fuel or fuel component having 2-methyltetrahydrofuran either in a yield greater than 4.5 mol % or in combination with alcohols.

    摘要翻译： 本发明基于惊人的发现，即选自4-氧代戊酸，至少一种4-氧代戊酸的内酯的5-碳化合物及其组合可以用贵金属的双金属催化剂氢化 与第二金属组合并保护侧甲基。 进一步出人意料地发现，在氢存在下，相同条件的双金属催化剂可用于催化不同的中间反应，例如天然内酯至γ-戊内酯和γ-戊内酯至1,4-戊二醇。 最后，令人惊讶的是，在双金属催化剂和氢气存在下，乙酰丙酸可以在单一工艺容器中加热转化为2-甲基四氢呋喃。 本发明的方法意外地产生具有2-甲基四氢呋喃的燃料或燃料组分，其产率大于4.5mol％或与醇组合。

    Processes and systems for the production of propylene glycol from glycerol
    4.
    发明授权
    Processes and systems for the production of propylene glycol from glycerol 有权
    用于从甘油生产丙二醇的方法和系统

    公开(公告)号：US08937202B2

    公开(公告)日：2015-01-20

    申请号：US12711053

    申请日：2010-02-23

    申请人： John G. Frye ,  Aaron A. Oberg ,  Alan H. Zacher

    发明人： John G. Frye ,  Aaron A. Oberg ,  Alan H. Zacher

    IPC分类号： C07C31/18 ,  C07C31/20 ,  C07C29/60

    CPC分类号： C07C29/60 ,  C07C31/205

    摘要： Processes and systems for converting glycerol to propylene glycol are disclosed. The glycerol feed is diluted with propylene glycol as the primary solvent, rather than water which is typically used. The diluted glycerol feed is sent to a reactor where the glycerol is converted to propylene glycol (as well as other byproducts) in the presence of a catalyst. The propylene glycol-containing product from the reactor is recycled as a solvent for the glycerol feed.

    摘要翻译： 公开了将甘油转化成丙二醇的方法和系统。 甘油进料用丙二醇作为主要溶剂而不是通常使用的水稀释。 将稀释的甘油进料送入反应器，在催化剂存在下甘油转化成丙二醇（以及其它副产物）。 来自反应器的含丙二醇的产物作为甘油进料的溶剂被再循环。

    PROCESSES AND SYSTEMS FOR THE PRODUCTION OF PROPYLENE GLYCOL FROM GLYCEROL
    8.
    发明申请
    PROCESSES AND SYSTEMS FOR THE PRODUCTION OF PROPYLENE GLYCOL FROM GLYCEROL 有权
    用于从甘油生产丙烯甘油的方法和系统

    公开(公告)号：US20110207971A1

    公开(公告)日：2011-08-25

    申请号：US12711053

    申请日：2010-02-23

    申请人： John G. Frye ,  Aaron A. Oberg ,  Alan H. Zacher

    发明人： John G. Frye ,  Aaron A. Oberg ,  Alan H. Zacher

    IPC分类号： C07C29/74 ,  B01J8/02

    CPC分类号： C07C29/60 ,  C07C31/205

    摘要： Processes and systems for converting glycerol to propylene glycol are disclosed. The glycerol feed is diluted with propylene glycol as the primary solvent, rather than water which is typically used. The diluted glycerol feed is sent to a reactor where the glycerol is converted to propylene glycol (as well as other byproducts) in the presence of a catalyst. The propylene glycol-containing product from the reactor is recycled as a solvent for the glycerol feed.

    摘要翻译： 公开了将甘油转化成丙二醇的方法和系统。 甘油进料用丙二醇作为主要溶剂而不是通常使用的水稀释。 将稀释的甘油进料送入反应器，在催化剂存在下甘油转化成丙二醇（以及其它副产物）。 来自反应器的含丙二醇的产物作为甘油进料的溶剂被再循环。