Title:
【発明の名称】使用済状態の精製用触媒の公害防止処理、および前記触媒の種々の金属成分の完全回収の新規方法
Document Type and Number:
Japanese Patent JP3366997
Kind Code:
B2
Abstract:
Process for antipollution treatment and recovery of the metals from a refining catalyst in the spent state, containing at least one contaminating metal chosen from the group consisting of vanadium, nickel and iron. The process of the invention is characterised especially in that: a) the catalyst discharged from the industrial unit is subjected to a stripping operation; b) the stripped catalyst is calcined under critical conditions; c) the calcined catalyst is subjected to a heat treatment in the presence of an alkaline base in the molten state; d) the solid mass resulting from stage c) is treated with water. The process applies to an antipollution treatment and the recovery of the metals from spent catalysts especially from catalysts for hydrotreatment or hydroconversion of an oil feedstock.
Inventors:
Shan Trang Dan
Eric Lido
Eric Lido
Application Number:
JP29580891A
Publication Date:
January 14, 2003
Filing Date:
November 12, 1991
Export Citation:
Assignee:
Institute Francais du Petrol
International Classes:
B01J23/94; B01J38/00; B01J38/64; C10G49/04; C22B1/02; C22B1/08; C22B3/14; C22B3/30; C22B3/36; C22B3/44; C22B7/00; C22B21/00; C22B23/00; C22B23/02; C22B34/22; C22B34/34; C22B34/36; (IPC1-7): C22B7/00; A62D3/00; B01J38/00; C10G49/04; C22B1/02; C22B1/08; C22B3/44; C22B21/00; C22B23/00; C22B34/22; C22B34/34; C22B34/36
Domestic Patent References:
| JP4733084A | ||||
| JP62258743A | ||||
| JP5487693A |
Attorney, Agent or Firm:
Eisuke Kishimoto (3 others)