Title:
PRODUCTION OF IMPROVED CATALYST-TYPE PARTICLE USING GRADE EVALUATION BY DENSITY
Document Type and Number:
Japanese Patent JP2648588
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for evaluating the grade of molded catalyst-type particles by density by which a catalytic substance contaminated with metal is separated from the uncontaminated catalyst particle similar to the catalytic substance in size and shape.
SOLUTION: In the mixture of spent catalyst-type particles, the relatively uncontaminated particle and slightly contaminated particle are suspended in a gas over a heavily contaminated particle. The heavily contaminated particle is moved upward along a vibrated inclined surface and recovered from a first outlet, the slightly contaminated particle is brought into contact with the lower part of the vibrated surface and recovered from a second outlet, and the relatively uncontaminated particle is brought into contact with a part of the lower part of the vibrated surface in contact with the slightly contaminated particle and recovered from a third outlet.
Inventors:
UERUCHI JEI GEARII
ERINGAMU ROBAATO II
ERINGAMU ROBAATO II
Application Number:
JP17773596A
Publication Date:
September 03, 1997
Filing Date:
July 08, 1996
Export Citation:
Assignee:
SHII AARU AI INTERN INC
International Classes:
B01J37/00; B01J38/60; B01J38/72; B03B4/02; B07B1/30; B07B13/02; C10G45/02; (IPC1-7): B01J38/72; B07B1/30
Attorney, Agent or Firm:
Minoru Nakamura (3 others)