公开(公告)号：US20230020130A1

公开(公告)日：2023-01-19

申请号：US17783227

申请日：2021-01-08

申请人： NIPPON KAYAKU KABUSHIKI KAISHA

发明人： Shogo YASUDA ,  Shigeki OKUMURA ,  Ryota HIRAOKA ,  Seiichiro FUKUNAGA

IPC分类号： B01J23/887 ,  C01G53/00 ,  C07C45/32 ,  C07C47/21 ,  C07C51/25 ,  C07C57/04 ,  C07C2/10

摘要： A catalyst containing, as an essential component, molybdenum; bismuth; and cobalt, in which, with respect to a peak intensity at 2θ=25.3°±0.2° in an X-ray diffraction pattern obtained by using CuKα rays as an X-ray source, a changing rate (Q1) per 1000 hours of reaction time represented by the following formulae (1) to (4) is 16 or less. Q1={(U1/F1−1)×100}/T×1000  (1) F1=(peak intensity of catalyst before oxidation reaction at 2θ=25.3°±)0.2°/(peak intensity of catalyst before oxidation reaction at 2θ=26.5°±0.2°)×100  (2) U1=(peak intensity of catalyst after oxidation reaction at 2θ=25.3°±0.2°)/(peak intensity of catalyst after oxidation reaction at 2θ=26.5°±0.2°)×100  (3) T=time (hr) during which oxidation reaction is carried out  (4)

公开(公告)号：US20230015502A1

公开(公告)日：2023-01-19

申请号：US17783209

申请日：2021-01-08

申请人： NIPPON KAYAKU KABUSHIKI KAISHA

发明人： Shigeki OKUMURA ,  Shogo YASUDA ,  Tomohiro OBATA ,  Seiichiro FUKUNAGA ,  Tomoyuki KAWAMURA

IPC分类号： B01J23/887 ,  B01J21/08 ,  B01J21/04 ,  B01J35/00 ,  C07C45/32 ,  C07C51/25 ,  C07C57/04 ,  C07C2/10

摘要： A catalyst containing, as an essential component, molybdenum; bismuth; and cobalt, in which a sum (S) of ratios of peak intensities expressed by the following formula in an X-ray diffraction pattern obtained by using CuKα rays as an X-ray source is 42 or more and 113 or less. S={(peak intensity at 2θ=14.1°±0.1°+(peak intensity at 2θ=25.4°±0.1°)+(peak intensity at 2θ=28.5°±0.1°)}/(peak intensity at 2θ=26.5°±0.1°)×100

公开(公告)号：US20210053039A1

公开(公告)日：2021-02-25

申请号：US17040374

申请日：2019-03-25

申请人： NIPPON KAYAKU KABUSHIKI KAISHA

发明人： Toru KAWAGUCHI ,  Seiichiro FUKUNAGA ,  Bungo NISHIZAWA ,  Tomohiro OBATA ,  Yasuhiro ARATANI ,  Hideomi SAKAI ,  Tomoyuki EJIRI

IPC分类号： B01J27/199 ,  C07C51/235 ,  C07C51/25 ,  B01J37/00 ,  B01J37/08 ,  B01J6/00

摘要： Provided is a catalyst for producing an unsaturated carboxylic acid, in which a ratio of a diffraction line intensity of 2θ=19.1±0.3° with respect to a diffraction line intensity of 2θ=10.7±0.3° in X-ray diffraction measurement is 0.20 or more and less than 0.58, and the catalyst having an active component represented by formula (A) shown below: Mo10VaPbCucAsdXeOg  (A)