ES455604A1 - Process for recovering the molybdenum present in waste products - Google Patents
Process for recovering the molybdenum present in waste productsInfo
- 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
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)
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)
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)
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 |
-
1977
- 1977-02-01 CH CH117577A patent/CH620372A5/en not_active IP Right Cessation
- 1977-02-01 CA CA270,812A patent/CA1103034A/en not_active Expired
- 1977-02-02 DE DE2704340A patent/DE2704340C3/en not_active Expired
- 1977-02-02 GB GB4185/77A patent/GB1567570A/en not_active Expired
- 1977-02-02 IT IT1987277A patent/IT1078391B/en active
- 1977-02-03 NO NO770368A patent/NO150274C/en unknown
- 1977-02-03 DK DK45477A patent/DK150627C/en not_active IP Right Cessation
- 1977-02-03 ES ES455604A patent/ES455604A1/en not_active Expired
- 1977-02-04 NL NL7701236A patent/NL7701236A/en not_active Application Discontinuation
- 1977-02-04 MX MX16793777A patent/MX143550A/en unknown
- 1977-02-04 LU LU76702A patent/LU76702A1/xx unknown
- 1977-02-04 JP JP1152877A patent/JPS52113397A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
NO770368L (en) | 1977-08-08 |
JPS52113397A (en) | 1977-09-22 |
NO150274C (en) | 1984-09-19 |
NL7701236A (en) | 1977-08-09 |
GB1567570A (en) | 1980-05-14 |
DK45477A (en) | 1977-08-06 |
LU76702A1 (en) | 1977-08-18 |
IT1078391B (en) | 1985-05-08 |
DE2704340B2 (en) | 1981-07-30 |
CH620372A5 (en) | 1980-11-28 |
NO150274B (en) | 1984-06-12 |
CA1103034A (en) | 1981-06-16 |
DK150627C (en) | 1987-10-19 |
DK150627B (en) | 1987-04-27 |
MX143550A (en) | 1981-06-01 |
DE2704340C3 (en) | 1982-04-29 |
JPS5532651B2 (en) | 1980-08-26 |
DE2704340A1 (en) | 1977-08-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19990503 |