DE2933430C2 - - Google Patents
Info
- Publication number
- DE2933430C2 DE2933430C2 DE19792933430 DE2933430A DE2933430C2 DE 2933430 C2 DE2933430 C2 DE 2933430C2 DE 19792933430 DE19792933430 DE 19792933430 DE 2933430 A DE2933430 A DE 2933430A DE 2933430 C2 DE2933430 C2 DE 2933430C2
- Authority
- DE
- Germany
- Prior art keywords
- molybdenum
- acid
- mixed acid
- nitric acid
- mixed
- 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
- 239000002253 acid Substances 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 44
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 43
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 43
- 229910017604 nitric acid Inorganic materials 0.000 claims description 42
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 41
- 229910052750 molybdenum Inorganic materials 0.000 claims description 31
- 239000011733 molybdenum Substances 0.000 claims description 31
- 238000005554 pickling Methods 0.000 claims description 29
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 22
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 22
- 239000000706 filtrate Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 description 37
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 18
- 229910052721 tungsten Inorganic materials 0.000 description 18
- 239000010937 tungsten Substances 0.000 description 18
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 14
- 229940010552 ammonium molybdate Drugs 0.000 description 14
- 235000018660 ammonium molybdate Nutrition 0.000 description 14
- 239000011609 ammonium molybdate Substances 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- DBRMBYFUMAFZOB-UHFFFAOYSA-N molybdenum nitric acid Chemical compound [Mo].[N+](=O)(O)[O-] DBRMBYFUMAFZOB-UHFFFAOYSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G39/00—Compounds of molybdenum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G39/00—Compounds of molybdenum
- C01G39/02—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792933430 DE2933430A1 (de) | 1979-08-17 | 1979-08-17 | Verfahren zur rueckgewinnung von molybdaen und mischsaeure aus verbrauchten mischsaeurebeizloesungen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792933430 DE2933430A1 (de) | 1979-08-17 | 1979-08-17 | Verfahren zur rueckgewinnung von molybdaen und mischsaeure aus verbrauchten mischsaeurebeizloesungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2933430A1 DE2933430A1 (de) | 1981-03-26 |
| DE2933430C2 true DE2933430C2 (en, 2012) | 1988-01-07 |
Family
ID=6078723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792933430 Granted DE2933430A1 (de) | 1979-08-17 | 1979-08-17 | Verfahren zur rueckgewinnung von molybdaen und mischsaeure aus verbrauchten mischsaeurebeizloesungen |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2933430A1 (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012130608A1 (de) | 2011-04-01 | 2012-10-04 | Osram Ag | Verfahren zum herstellen einer wicklung zur herstellung von elektroden für entladungslampen, wicklung zur herstellung von elektroden für entladungslampen sowie verfahren zur herstellung einer elektrode für entladungslampen |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2510541A2 (fr) * | 1977-09-30 | 1983-02-04 | Pechiney Ugine Kuhlmann Uran | Procede de valorisation du molybdene a partir de solutions molybdeniferes contenant des carbonate, sulfate, hydroxyde ou hydrogenocarbonate alcalins, ainsi que, eventuellement, de l'uranium |
| DE3169917D1 (en) * | 1981-12-18 | 1985-05-15 | Mta Muszaki Fiz Kutato Intezet | Method of selectively dissolving molybdenum in the presence of tungsten |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3963823A (en) * | 1975-02-25 | 1976-06-15 | Westinghouse Electric Corporation | Molybdenum recovery from spent acid solution |
-
1979
- 1979-08-17 DE DE19792933430 patent/DE2933430A1/de active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012130608A1 (de) | 2011-04-01 | 2012-10-04 | Osram Ag | Verfahren zum herstellen einer wicklung zur herstellung von elektroden für entladungslampen, wicklung zur herstellung von elektroden für entladungslampen sowie verfahren zur herstellung einer elektrode für entladungslampen |
| DE102011006620A1 (de) | 2011-04-01 | 2012-10-04 | Osram Ag | Verfahren zum Herstellen einer Wicklung zur Herstellung von Elektroden für Entladungslampen, Wicklung zur Herstellung von Elektroden für Entladungslampen sowie Verfahren zur Herstellung einer Elektrode für Entladungslampen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2933430A1 (de) | 1981-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licenses declared (paragraph 23) | ||
| 8339 | Ceased/non-payment of the annual fee |