DE2304094A1 - Verfahren zur herstellung von hochreinem molybdaenoxid und ammoniummolybdat - Google Patents
Verfahren zur herstellung von hochreinem molybdaenoxid und ammoniummolybdatInfo
- Publication number
- DE2304094A1 DE2304094A1 DE2304094A DE2304094A DE2304094A1 DE 2304094 A1 DE2304094 A1 DE 2304094A1 DE 2304094 A DE2304094 A DE 2304094A DE 2304094 A DE2304094 A DE 2304094A DE 2304094 A1 DE2304094 A1 DE 2304094A1
- Authority
- DE
- Germany
- Prior art keywords
- leaching
- concentrate
- aqueous
- molybdenum
- solution
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 44
- 239000011609 ammonium molybdate Substances 0.000 title claims description 24
- 229940010552 ammonium molybdate Drugs 0.000 title claims description 24
- 235000018660 ammonium molybdate Nutrition 0.000 title claims description 24
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 title claims description 22
- 238000002386 leaching Methods 0.000 claims description 74
- 239000012141 concentrate Substances 0.000 claims description 59
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 36
- 229910052750 molybdenum Inorganic materials 0.000 claims description 36
- 239000011733 molybdenum Substances 0.000 claims description 36
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 25
- 239000007787 solid Substances 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 15
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052700 potassium Inorganic materials 0.000 claims description 15
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 14
- 239000011591 potassium Substances 0.000 claims description 14
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 13
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 12
- 229910017604 nitric acid Inorganic materials 0.000 claims description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 11
- 239000003729 cation exchange resin Substances 0.000 claims description 11
- 229910052749 magnesium Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- -1 ammonium molybdate compound Chemical class 0.000 claims description 10
- BIOOACNPATUQFW-UHFFFAOYSA-N calcium;dioxido(dioxo)molybdenum Chemical compound [Ca+2].[O-][Mo]([O-])(=O)=O BIOOACNPATUQFW-UHFFFAOYSA-N 0.000 claims description 10
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 claims description 4
- 239000011133 lead Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 150000007513 acids Chemical class 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 235000010755 mineral Nutrition 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical class [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 claims description 2
- 101100069231 Caenorhabditis elegans gkow-1 gene Proteins 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N iron (II) ion Substances [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 229910021514 lead(II) hydroxide Inorganic materials 0.000 claims description 2
- VNZYIVBHUDKWEO-UHFFFAOYSA-L lead(ii) hydroxide Chemical compound [OH-].[OH-].[Pb+2] VNZYIVBHUDKWEO-UHFFFAOYSA-L 0.000 claims description 2
- 235000021317 phosphate Nutrition 0.000 claims description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 229960004887 ferric hydroxide Drugs 0.000 claims 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims 1
- 150000004763 sulfides Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 description 39
- 239000000047 product Substances 0.000 description 30
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 20
- 239000000706 filtrate Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 229910052961 molybdenite Inorganic materials 0.000 description 16
- 239000002002 slurry Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 14
- 239000012065 filter cake Substances 0.000 description 13
- 238000011282 treatment Methods 0.000 description 13
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 238000005188 flotation Methods 0.000 description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 description 8
- 239000000908 ammonium hydroxide Substances 0.000 description 6
- 238000001354 calcination Methods 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 150000003464 sulfur compounds Chemical class 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 239000003456 ion exchange resin Substances 0.000 description 3
- 229920003303 ion-exchange polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical class [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 2
- 239000005078 molybdenum compound Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- DPEYHNFHDIXMNV-UHFFFAOYSA-N (9-amino-3-bicyclo[3.3.1]nonanyl)-(4-benzyl-5-methyl-1,4-diazepan-1-yl)methanone dihydrochloride Chemical compound Cl.Cl.CC1CCN(CCN1Cc1ccccc1)C(=O)C1CC2CCCC(C1)C2N DPEYHNFHDIXMNV-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- VSOYJNRFGMJBAV-UHFFFAOYSA-N N.[Mo+4] Chemical compound N.[Mo+4] VSOYJNRFGMJBAV-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- TVBSSDNEJWXWFP-UHFFFAOYSA-N nitric acid perchloric acid Chemical compound O[N+]([O-])=O.OCl(=O)(=O)=O TVBSSDNEJWXWFP-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000000080 wetting agent 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
- C01G39/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
-
- 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)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00221257*A US3848049A (en) | 1972-01-27 | 1972-01-27 | Process for producing high purity molybdenum oxide and ammonium molybdate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2304094A1 true DE2304094A1 (de) | 1973-08-16 |
Family
ID=22827050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2304094A Pending DE2304094A1 (de) | 1972-01-27 | 1973-01-27 | Verfahren zur herstellung von hochreinem molybdaenoxid und ammoniummolybdat |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3848049A (enExample) |
| BE (1) | BE794636A (enExample) |
| CA (1) | CA978330A (enExample) |
| DE (1) | DE2304094A1 (enExample) |
| FR (1) | FR2169063B1 (enExample) |
| NL (1) | NL150085B (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2558160A1 (de) * | 1974-12-23 | 1976-07-01 | Amax Inc | Verfahren zum herstellen von gereinigtem molybdaenoxid |
| DE2722615A1 (de) * | 1976-05-19 | 1977-12-01 | Amax Inc | Verfahren zur reinigung von molybdaenoxidkonzentraten |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3932580A (en) * | 1974-10-21 | 1976-01-13 | Amax Inc. | Process for purifying technical grade molybdenum oxide |
| US4079116A (en) * | 1976-12-27 | 1978-03-14 | Amax Inc. | Process for producing ammonium heptamolybdate and/or ammonium dimolybdate |
| JPS5497599A (en) * | 1978-01-19 | 1979-08-01 | Amax Inc | Method of manufacturing ammonium molybdate product |
| US4207296A (en) * | 1978-09-15 | 1980-06-10 | Amax Inc. | Process for producing purified ammonium molybdate solution |
| US4296077A (en) * | 1980-11-10 | 1981-10-20 | Engelhard Min. & Chem. Corp. | Recovery of molybdenum values from leach muds |
| US4515756A (en) * | 1980-12-09 | 1985-05-07 | Occidental Research Corporation | Process for extracting tungsten or molybdenum from solution |
| EP0060376B1 (en) * | 1981-03-18 | 1984-10-10 | Amax Inc. | Recovery and recycle of molybdenum values from coal residue |
| US4374100A (en) * | 1981-03-18 | 1983-02-15 | Amax Inc. | Recovery and recycle of molybdenum values from coal liquefaction residue |
| US4339424A (en) * | 1981-03-20 | 1982-07-13 | Exxon Research & Engineering Co. | Method of preparing W or Mo metal oxides |
| US4604266A (en) * | 1984-02-24 | 1986-08-05 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4525331A (en) * | 1984-02-24 | 1985-06-25 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4596701A (en) * | 1984-02-29 | 1986-06-24 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4601890A (en) * | 1984-02-29 | 1986-07-22 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4555386A (en) * | 1984-02-29 | 1985-11-26 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4604267A (en) * | 1984-02-29 | 1986-08-05 | Gte Products Corporation | Process for purifying molybdenum trioxide |
| US4643884A (en) * | 1985-02-08 | 1987-02-17 | Gte Products Corporaton | Purification of molybdenum trioxide |
| EP0197271B1 (en) * | 1985-03-04 | 1989-04-19 | Kabushiki Kaisha Toshiba | Methods for preparing high-purity molybdenum or tungsten powder and high-purity oxides powder of the same |
| US4762700A (en) * | 1987-05-11 | 1988-08-09 | Amax Inc. | Ammonium octamolybdate-alpha |
| US4885144A (en) * | 1987-09-21 | 1989-12-05 | Gte Products Corporation | Process for purifying molybdenum |
| US5002740A (en) * | 1987-09-21 | 1991-03-26 | Gte Products Corporation | Process for purifying molybdenum |
| US5185133A (en) * | 1988-08-23 | 1993-02-09 | Gte Products Corporation | Method for producing fine size yellow molybdenum trioxide powder |
| US5223234A (en) * | 1988-12-22 | 1993-06-29 | Kloeckner-Humboldt-Deutz Ag | Method for producing molybdenum trioxide (MOO3) from raw materials that contain MOS2 |
| US5273726A (en) * | 1991-05-06 | 1993-12-28 | Gte Products Corporation | Removal of aluminum from ammonium molybdate solution |
| WO1999041417A2 (en) * | 1998-02-11 | 1999-08-19 | Qualchem, Inc. | Method for producing high-purity molybdenum chemicals from molybdenum sulfides |
| US5985236A (en) * | 1998-06-09 | 1999-11-16 | Cyprus Amax Minerals Company | Ammonium octamolybdate composition and method for producing the same |
| JP4351869B2 (ja) * | 2003-06-10 | 2009-10-28 | 隆 河東田 | 半導体を用いた電子デバイス |
| CA2669758A1 (en) * | 2006-11-16 | 2008-11-20 | Albemarle Netherlands B.V. | Purified molybdenum technical oxide from molybdenite |
| JP2010510160A (ja) * | 2006-11-16 | 2010-04-02 | アルベマール・ネーザーランズ・ベーブイ | 工業用酸化モリブデンの精製 |
| EP2468524B2 (en) * | 2006-12-19 | 2018-10-17 | Siltech Limited | Improvements relating to laser marking |
| CA3157756A1 (en) | 2019-12-17 | 2021-06-24 | Guido PROVOOST | Reduction of impurities in a roasted molybdenum concentrate |
| CN117772763B (zh) * | 2024-02-27 | 2024-05-17 | 哈尔滨工业大学(深圳)(哈尔滨工业大学深圳科技创新研究院) | 一种从含矾磷砷渣中分离回收砷、磷、铝的方法 |
| CN119774659A (zh) * | 2025-03-10 | 2025-04-08 | 陕西恒昌钼业有限公司 | 一种钼酸铵的生产工艺 |
-
0
- BE BE794636D patent/BE794636A/xx not_active IP Right Cessation
-
1972
- 1972-01-27 US US00221257*A patent/US3848049A/en not_active Expired - Lifetime
- 1972-11-03 CA CA155,528A patent/CA978330A/en not_active Expired
-
1973
- 1973-01-12 FR FR7301121A patent/FR2169063B1/fr not_active Expired
- 1973-01-25 NL NL737301097A patent/NL150085B/xx not_active IP Right Cessation
- 1973-01-27 DE DE2304094A patent/DE2304094A1/de active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2558160A1 (de) * | 1974-12-23 | 1976-07-01 | Amax Inc | Verfahren zum herstellen von gereinigtem molybdaenoxid |
| DE2558160B2 (de) * | 1974-12-23 | 1980-07-17 | Amax Inc., New York, N.Y. (V.St.A.) | Verfahren zum Reinigen von technischem Molybdänoxid |
| DE2558160C3 (de) * | 1974-12-23 | 1981-04-23 | Amax Inc., New York, N.Y. | Verfahren zum Reinigen von technischen Molybdänoxid |
| DE2722615A1 (de) * | 1976-05-19 | 1977-12-01 | Amax Inc | Verfahren zur reinigung von molybdaenoxidkonzentraten |
Also Published As
| Publication number | Publication date |
|---|---|
| US3848049A (en) | 1974-11-12 |
| NL7301097A (enExample) | 1973-07-31 |
| NL150085B (nl) | 1976-07-15 |
| FR2169063A1 (enExample) | 1973-09-07 |
| CA978330A (en) | 1975-11-25 |
| FR2169063B1 (enExample) | 1975-01-17 |
| BE794636A (fr) | 1973-05-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHW | Rejection |