公开(公告)号：EP2418017A1

公开(公告)日：2012-02-15

申请号：EP11154278.3

申请日：2011-02-14

申请人： King Abdulaziz City for Science and Technology

发明人： Bagabas, Abdulaziz A. ,  Akhmedov, Vagif Malik ,  Mostafa, Mohamed Mokhtar Mohamed ,  Al-Rabiah, Abdulrahman A.

IPC分类号： B01J37/04 ,  B01J23/60 ,  B01J23/652 ,  C07C45/62 ,  C07C45/73 ,  C07C45/74 ,  C07C49/203

CPC分类号： B01J37/031 ,  B01J21/005 ,  B01J23/60 ,  B01J23/6522 ,  B01J35/002 ,  B01J35/006 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/04 ,  B01J37/18 ,  B01J38/02 ,  C07C45/73 ,  Y02P20/584 ,  C07C49/04

摘要： Several metal-supported catalyst compositions based on nano-crystalline zinc oxide were synthesized and characterized by X-ray powder diffraction (XRD), Carbon dioxide temperature programmed desorption (CO 2 TPD), and nitrogen adsorption at -196°C. The Pd-supported nano- ZnO mixed with different oxides such as Cr 2 O 3 , CrO 3 , MgO, and γ-A1 2 O 3 showed high catalytic activity in acetone condensation in gas-phase process under hydrogen flow. This reaction involves the base-acid coupling of acetone to form mesityl oxide, followed by its hydrogenation to methyl isobutyl ketone (MIBK). The novel catalyst 1% wt. n -Pd/ n -ZnCr 2 O 4 was utilized during gas-phase reaction during production of MIBK. MIBK selectivity was 70-72% at 66-77% acetone conversion at 300-350° C. Diisobutyl ketone (DIBK) was the main by-product, with a total MIBK+DIBK selectivity up to 88%. The prepared catalysts showed stable activity and may be used repeatedly and for a longer period of time.

摘要翻译： 通过X射线粉末衍射（XRD），二氧化碳温度程序解吸（CO 2 TPD）和-196℃的氮吸附合成了几种基于纳米结晶氧化锌的金属负载型催化剂组合物。 与不同氧化物如Cr 2 O 3，CrO 3，MgO和3-Al 2 O 3混合的Pd负载的纳米ZnO在氢气流下在气相工艺中在丙酮缩合中显示出高的催化活性。 该反应涉及丙酮的碱 - 酸偶联以形成三甲氧基，然后氢化为甲基异丁基酮（MIBK）。 新型催化剂1％ 在生产MIBK期间气相反应中使用n -Pd / n -ZnCr 2 O 4。 在300-350℃下，66-76％丙酮转化率下，MIBK选择性为70-72％。二异丁酮（DIBK）是主要的副产物，总的MIBK + DIBK选择性高达88％。 制备的催化剂显示出稳定的活性，可以反复使用较长时间。

公开(公告)号：EP2418017B1

公开(公告)日：2018-11-21

申请号：EP11154278.3

申请日：2011-02-14

申请人： King Abdulaziz City for Science and Technology

发明人： Bagabas, Abdulaziz A. ,  Akhmedov, Vagif Malik ,  Mostafa, Mohamed Mokhtar Mohamed ,  Al-Rabiah, Abdulrahman A.

IPC分类号： B01J23/60 ,  B01J37/03 ,  B01J37/18 ,  B01J38/02 ,  B01J35/00 ,  B01J35/10 ,  B01J37/02 ,  C07C45/73 ,  B01J23/652 ,  B01J37/04 ,  C07C45/62 ,  C07C45/74 ,  C07C49/203 ,  B01J21/00

CPC分类号： B01J37/031 ,  B01J21/005 ,  B01J23/60 ,  B01J23/6522 ,  B01J35/002 ,  B01J35/006 ,  B01J35/1014 ,  B01J37/0201 ,  B01J37/04 ,  B01J37/18 ,  B01J38/02 ,  C07C45/73 ,  Y02P20/584 ,  C07C49/04

摘要： Several metal-supported catalyst compositions based on nano-crystalline zinc oxide were synthesized and characterized by X-ray powder diffraction (XRD), Carbon dioxide temperature programmed desorption (CO 2 TPD), and nitrogen adsorption at -196°C. The Pd-supported nano- ZnO mixed with different oxides such as Cr 2 O 3 , CrO 3 , MgO, and ³-A1 2 O 3 showed high catalytic activity in acetone condensation in gas-phase process under hydrogen flow. This reaction involves the base-acid coupling of acetone to form mesityl oxide, followed by its hydrogenation to methyl isobutyl ketone (MIBK). The novel catalyst 1% wt. n -Pd/ n -ZnCr 2 O 4 was utilized during gas-phase reaction during production of MIBK. MIBK selectivity was 70-72% at 66-77% acetone conversion at 300-350° C. Diisobutyl ketone (DIBK) was the main by-product, with a total MIBK+DIBK selectivity up to 88%. The prepared catalysts showed stable activity and may be used repeatedly and for a longer period of time.