Title:
PACKING METHOD OF MOLYBDENUM-CONTAINING OXIDE CATALYST
Document Type and Number:
Japanese Patent JP2819078
Kind Code:
B2
Abstract:
PURPOSE: To prevent powdering or crumbling of a Mo-contg. oxide catalyst when packed in a reactor by dropping the catalyst, by mixing the catalyst with a specified proportion of a packing subsidiary material which shows a specified packing volume reducition when force of specified packing density is given to the material.
CONSTITUTION: A packing subsidiary material (e.g. carbon steel) is mixed by 1-70wt.% to a Mo-contg. oxide catalyst and then dropped and packed in a reactor tube. This packing subsidiary material shows 1.0-40.0% packing volume reduction when the packing density is 0.1-1.0g/ml and 0.1Kg/cm2 force is given. Namely, by mixing the packing subsidiary material with the catalyst to pack the mixture in the reactor, the catalyst can be prevented from becoming a powder or breaking due to physical impacts to the catalyst during dropping. Thereby, the yield of various reaction products using this Mo-contg. oxide catalyst can be improved. Moreover, it is not necessary to increase the mechanical strength of catalyst against powdering of the catalyst during packing. Thereby, the catalyst can be produced in a wide production conditions with little limit for designing the catalyst.
Inventors:
Kuroda Tohru
Ohkita
Watanabe Seijo
Hiroyuki Naito
Ohkita
Watanabe Seijo
Hiroyuki Naito
Application Number:
JP30652891A
Publication Date:
October 30, 1998
Filing Date:
October 25, 1991
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
B01J8/02; B01J8/00; C07B61/00; C07C27/00; C07C27/14; C07C47/22; C07C57/05; C07C57/055; (IPC1-7): B01J8/02; C07C27/00; C07C27/14; C07C47/22; C07C57/05; C07C57/055
Domestic Patent References:
| JP5041782A |
Attorney, Agent or Firm:
Toshio Yoshizawa