METHOD FOR DISSOLVING SPENT CATALYST

• Main Authors: KIRISHIMA KENJI, NAKANO YUSHI, SHIMAUCHI HISAAKI, MATSUNAGA ICHIRO, TOYABE KEIJI, SHIBAYAMA HARUO
• Format: Patent
• Language: English
• Published: 01.11.1994
• Edition: 5
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DISPOSAL OF SOLID WASTE; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; RECLAMATION OF CONTAMINED SOIL SOIL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

PURPOSE:To provide a method for dissolving a spent catalyst completely and efficiently in the case of dissolving the spent catalyst wherein alumina is mainly incorporated in a carrier. CONSTITUTION:Deoiling treatment is previously performed for a spent catalyst in accordance with necessity. Thereaft...