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ES455604A1 - Process for recovering the molybdenum present in waste products - Google Patents

Process for recovering the molybdenum present in waste products

Info

Publication number
ES455604A1
ES455604A1 ES455604A ES455604A ES455604A1 ES 455604 A1 ES455604 A1 ES 455604A1 ES 455604 A ES455604 A ES 455604A ES 455604 A ES455604 A ES 455604A ES 455604 A1 ES455604 A1 ES 455604A1
Authority
ES
Spain
Prior art keywords
molybdenum
recovering
treatment
necessary
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES455604A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metaux Speciaux SA
Original Assignee
Metaux Speciaux SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7603674A external-priority patent/FR2340378A1/en
Priority claimed from FR7635867A external-priority patent/FR2371230A2/en
Application filed by Metaux Speciaux SA filed Critical Metaux Speciaux SA
Publication of ES455604A1 publication Critical patent/ES455604A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/34—Obtaining molybdenum
    • C22B34/345—Obtaining molybdenum from spent catalysts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/34—Obtaining molybdenum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/009—General processes for recovering metals or metallic compounds from spent catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Molybdenum recovery process, by treatment of used catalysts based on activated alumina containing one or more molybdenum compounds, and in general, one or more metal compounds, with a view to recovering molybdenum as a substantially aluminum-free compound, characterized in that after having removed, if necessary, carbon, hydrocarbons and a part of the sulfur, these used catalysts are subjected to treatment with soda ash at a temperature between 600 and 800ºC, and then washed with water, and because a quantity of nitric acid between 1.5 and 2.5 times that which would be necessary to reach a pH between 5 and 6 is added progressively to the alkaline solution thus obtained, while maintaining the temperature below 30ºC, and because the acidified solution is thus hydrolyzed at a temperature close to boiling, then rinsing and drying the hydrate de Mo so hasty. (Machine-translation by Google Translate, not legally binding)
ES455604A 1976-02-05 1977-02-03 Process for recovering the molybdenum present in waste products Expired ES455604A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7603674A FR2340378A1 (en) 1976-02-05 1976-02-05 PROCESS FOR RECOVERING MOLYBDENE FROM WASTE
FR7635867A FR2371230A2 (en) 1976-11-22 1976-11-22 Molybdenum obtd. from spent catalyst used to remove sulphur from oil - by roasting catalyst with sodium carbonate, then leaching with water

Publications (1)

Publication Number Publication Date
ES455604A1 true ES455604A1 (en) 1978-04-01

Family

ID=26219296

Family Applications (1)

Application Number Title Priority Date Filing Date
ES455604A Expired ES455604A1 (en) 1976-02-05 1977-02-03 Process for recovering the molybdenum present in waste products

Country Status (12)

Country Link
JP (1) JPS52113397A (en)
CA (1) CA1103034A (en)
CH (1) CH620372A5 (en)
DE (1) DE2704340C3 (en)
DK (1) DK150627C (en)
ES (1) ES455604A1 (en)
GB (1) GB1567570A (en)
IT (1) IT1078391B (en)
LU (1) LU76702A1 (en)
MX (1) MX143550A (en)
NL (1) NL7701236A (en)
NO (1) NO150274C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0421150U (en) * 1990-06-06 1992-02-21
US5702500A (en) * 1995-11-02 1997-12-30 Gulf Chemical & Metallurgical Corporation Integrated process for the recovery of metals and fused alumina from spent catalysts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1888978A (en) * 1930-11-29 1932-11-29 Standard Ig Co Method of preparing catalytic materials
US2367506A (en) * 1943-07-27 1945-01-16 Kissock Alan Separation and recovery of molybdate and alumina from spent catalysts
US3773890A (en) * 1972-04-14 1973-11-20 Union Carbide Corp Process for extracting values from spent hydrodesulfurization catalysts
US3826082A (en) * 1973-03-30 1974-07-30 Gen Electric Combustion liner cooling slot stabilizing dimple

Also Published As

Publication number Publication date
MX143550A (en) 1981-06-01
GB1567570A (en) 1980-05-14
DE2704340C3 (en) 1982-04-29
NL7701236A (en) 1977-08-09
DE2704340B2 (en) 1981-07-30
CH620372A5 (en) 1980-11-28
CA1103034A (en) 1981-06-16
JPS5532651B2 (en) 1980-08-26
DK150627C (en) 1987-10-19
IT1078391B (en) 1985-05-08
LU76702A1 (en) 1977-08-18
DK45477A (en) 1977-08-06
NO770368L (en) 1977-08-08
NO150274B (en) 1984-06-12
NO150274C (en) 1984-09-19
JPS52113397A (en) 1977-09-22
DK150627B (en) 1987-04-27
DE2704340A1 (en) 1977-08-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503