公开(公告)号：US07220698B2

公开(公告)日：2007-05-22

申请号：US11052897

申请日：2005-02-09

申请人： Hiromi Yunoki ,  Michio Tanimoto

发明人： Hiromi Yunoki ,  Michio Tanimoto

IPC分类号： B01J23/00 ,  C01C51/235

CPC分类号： C07C51/252 ,  B01J23/002 ,  B01J23/22 ,  B01J23/28 ,  B01J23/8876 ,  B01J23/8877 ,  B01J23/8885 ,  B01J37/0236 ,  B01J2523/00 ,  C07C57/04 ,  B01J2523/13 ,  B01J2523/17 ,  B01J2523/53 ,  B01J2523/55 ,  B01J2523/68 ,  B01J2523/69

摘要： There are provided a catalyst for catalytic gas phase oxidation of acrolein with molecular oxygen to produce acrylic acid, the catalyst including molybdenum and vanadium and further including at least one volatile catalyst poison ingredient in an amount of 10 to 100 ppb by mass as measured by ion chromatography; and a process for producing acrylic acid, including a step of carrying out catalytic gas phase oxidation of acrolein with molecular oxygen using the catalyst. The catalyst of the present invention can lower a hot spot temperature and suppress reduction in a reaction efficacy accompanied with thermal degradation, so that the acrolein conversion can stably be kept higher over a long term.

摘要翻译： 提供了一种用分子氧催化气相氧化丙烯醛产生丙烯酸的催化剂，该催化剂包括钼和钒，还包括至少一种挥发性催化剂毒成分，其用量为离子浓度为10-100ppb 色谱 以及丙烯酸的制造方法，包括使用催化剂进行丙烯醛与分子氧的催化气相氧化的工序。 本发明的催化剂可以降低热点温度并抑制伴随热降解的反应效率的降低，使得丙烯醛转化率可以长期稳定地保持较高。