Method for the production of phenol and acetone
    1.
    发明授权
    Method for the production of phenol and acetone 有权
    苯酚和丙酮生产方法

    公开(公告)号:US07482493B2

    公开(公告)日:2009-01-27

    申请号:US11861374

    申请日:2007-09-26

    IPC分类号: C07C45/00 C07C37/08

    摘要: A method for the production of phenol and acetone from a cumene hydroperoxide mixture comprises: decomposing the cumene hydroperoxide mixture in the presence of a catalyst mixture to form a mixture comprising phenol and acetone, wherein the method further comprises: a) forming the catalyst mixture in a catalyst formation reactor by combining sulfuric acid and phenol in a weight ratio of from 2:1 to 1:1000; b) holding the catalyst mixture in the catalyst formation reactor at a temperature of about 20 to 80° C. for about 1 to 600 minutes; and c) adding the catalyst mixture to the cumene hydroperoxide mixture to form the phenol and acetone mixture. Running the process in this manner reduces the yield of hydroxyacetone and, consequently, improves the quality of the commercial phenol. Moreover, this method reduces consumption of sulfuric acid in comparison with the process in which sulfuric acid is used as catalyst.

    摘要翻译: 用于由氢过氧化枯烯混合物生产苯酚和丙酮的方法包括:在催化剂混合物存在下分解氢过氧化枯烯混合物以形成包含苯酚和丙酮的混合物,其中该方法还包括:a)将催化剂混合物形成 催化剂形成反应器,其结合硫酸和苯酚,重量比为2:1至1:1000; b)将催化剂混合物在约20至80℃的温度下保持在催化剂生成反应器中约1至600分钟; 和c)将催化剂混合物加入氢过氧化枯烯混合物中以形成苯酚和丙酮混合物。 以这种方式运行该方法降低了羟基丙酮的产率,因此改善了商业苯酚的质量。 此外,与使用硫酸作为催化剂的方法相比,该方法降低了硫酸的消耗。

    METHOD FOR THE PRODUCTION OF PHENOL AND ACETONE
    2.
    发明申请
    METHOD FOR THE PRODUCTION OF PHENOL AND ACETONE 有权
    用于生产酚醛和丙酮的方法

    公开(公告)号:US20080214872A1

    公开(公告)日:2008-09-04

    申请号:US11861374

    申请日:2007-09-26

    IPC分类号: C07C45/53 C07C37/08

    摘要: A method for the production of phenol and acetone from a cumene hydroperoxide mixture comprises: decomposing the cumene hydroperoxide mixture in the presence of a catalyst mixture to form a mixture comprising phenol and acetone, wherein the method further comprises: a) forming the catalyst mixture in a catalyst formation reactor by combining sulfuric acid and phenol in a weight ratio of from 2:1 to 1:1000; b) holding the catalyst mixture in the catalyst formation reactor at a temperature of about 20 to 80° C. for about 1 to 600 minutes; and c) adding the catalyst mixture to the cumene hydroperoxide mixture to form the phenol and acetone mixture. Running the process in this manner reduces the yield of hydroxyacetone and, consequently, improves the quality of the commercial phenol. Moreover, this method reduces consumption of sulfuric acid in comparison with the process in which sulfuric acid is used as catalyst.

    摘要翻译: 用于由氢过氧化枯烯混合物生产苯酚和丙酮的方法包括:在催化剂混合物存在下分解氢过氧化枯烯混合物以形成包含苯酚和丙酮的混合物,其中该方法还包括:a)将催化剂混合物形成 催化剂形成反应器,其结合硫酸和苯酚,重量比为2:1至1:1000; b)将催化剂混合物在约20至80℃的温度下保持在催化剂生成反应器中约1至600分钟; 和c)将催化剂混合物加入氢过氧化枯烯混合物中以形成苯酚和丙酮混合物。 以这种方式运行该方法降低了羟基丙酮的产率,因此改善了商业苯酚的质量。 此外,与使用硫酸作为催化剂的方法相比,该方法降低了硫酸的消耗。

    Method for the production of phenol and acetone
    3.
    发明授权
    Method for the production of phenol and acetone 有权
    苯酚和丙酮生产方法

    公开(公告)号:US07485758B2

    公开(公告)日:2009-02-03

    申请号:US11861381

    申请日:2007-09-26

    IPC分类号: C07C45/00 C07C37/08

    摘要: A method for the production of phenol and acetone from a cumene hydroperoxide mixture comprises a first stage and a second stage and at least two serially connected reactors, wherein the first stage comprises decomposition of a cumene hydroperoxide mixture in the presence of a catalyst mixture to form a dicumyl peroxide mixture, and the second stage comprises formation of a phenol and acetone mixture from decomposition of the dicumyl peroxide mixture formed in the first stage, wherein, the first stage further comprises: a) forming a catalyst mixture by combining sulfuric acid and phenol in a weight ratio of from 2:1 to 1:1000 in a catalyst formation reactor, b) holding the catalyst mixture in the catalyst formation reactor at a temperature of about 20 to 80° C. for about 1 to 600 minutes; and, c) adding the catalyst mixture to the cumene hydroperoxide mixture to form the phenol and acetone mixture. The proposed method permits a significant reduction in the yield of hydroxyacetone that causes deterioration in the quality of commercial phenol.

    摘要翻译: 从氢过氧化枯烯混合物生产苯酚和丙酮的方法包括第一阶段和第二阶段以及至少两个串联的反应器,其中第一阶段包括在催化剂混合物存在下分解氢过氧化枯烯混合物以形成 二异辛烯过氧化物混合物,第二阶段包括由第一阶段中形成的二异辛烯过氧化物混合物的分解形成苯酚和丙酮混合物,其中第一阶段还包括:a)通过将硫酸和苯酚 在催化剂生成反应器中重量比为2:1至1:1000,b)将催化剂混合物在约20至80℃的温度下保持在催化剂生成反应器中约1至600分钟; 和c)将催化剂混合物加入氢过氧化枯烯混合物中以形成苯酚和丙酮混合物。 所提出的方法允许显着降低羟基丙酮的产率,导致商业酚的质量下降。

    Method for producing phenol and acetone
    10.
    发明授权
    Method for producing phenol and acetone 有权
    苯酚和丙酮的生产方法

    公开(公告)号:US08003827B2

    公开(公告)日:2011-08-23

    申请号:US12424447

    申请日:2009-04-15

    IPC分类号: C07C45/53 C07C37/08

    摘要: A method for producing phenol and acetone in a multi-stage process at an elevated temperature from a cumene hydroperoxide mixture comprising cumene, comprises the steps of: a) distilling an amount of cumene from the cumene hydroperoxide mixture until the cumene mass % is 0 to 7 mass % relative to the total mass of the cumene hydroperoxide mixture, b) reacting the cumene hydroperoxide mixture with an acid catalyst form to a second mixture comprising phenol, acetone and dicumyl peroxide in a first stage, and c) decomposing the second mixture in a second stage to produce phenol and acetone, wherein an amount of phenol approximately equal to the amount of distilled from the cumene hydroperoxide mixture is added to the cumene hydroperoxide mixture before the reacting step b). The amount of hydroxyacetone is reduced, thereby, improving the quality of commercial-grade phenol and the products made from the phenol.

    摘要翻译: 在高温下从包含异丙基苯的氢过氧化枯烯混合物在多级方法中生产苯酚和丙酮的方法包括以下步骤:a)从氢过氧化枯烯混合物中蒸馏出一定量的异丙基苯,直到枯烯质量%为0至 7)质量%相对于氢过氧化枯烯混合物的总质量,b)在第一阶段使氢过氧化异丙苯混合物与酸催化剂形式反应到包含苯酚,丙酮和过氧化二异丙苯的第二混合物,和c)将第二混合物分解 产生苯酚和丙酮的第二阶段,其中在反应步骤b)之前将大约等于从氢过氧化枯烯混合物中蒸馏出的量的苯酚的量加入氢过氧化异丙苯混合物中。 羟丙酮的量减少,从而提高了商业级苯酚的质量和由苯酚制得的产品。