DD201828A5 - Verfahren zur chemischen, automatischen aufloesung von molybdaenkerndraht in wolframwendeln sowie vorrichtung zur durchfuehrung des verfahrens - Google Patents
Verfahren zur chemischen, automatischen aufloesung von molybdaenkerndraht in wolframwendeln sowie vorrichtung zur durchfuehrung des verfahrens Download PDFInfo
- Publication number
- DD201828A5 DD201828A5 DD81233169A DD23316981A DD201828A5 DD 201828 A5 DD201828 A5 DD 201828A5 DD 81233169 A DD81233169 A DD 81233169A DD 23316981 A DD23316981 A DD 23316981A DD 201828 A5 DD201828 A5 DD 201828A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- acid
- reaction vessel
- dissolution
- reaction
- core wire
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 79
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 13
- 239000010937 tungsten Substances 0.000 title claims abstract description 13
- 239000000126 substance Substances 0.000 title claims description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 63
- 239000002253 acid Substances 0.000 claims abstract description 52
- 238000004090 dissolution Methods 0.000 claims abstract description 40
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 238000005496 tempering Methods 0.000 claims abstract description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 24
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 21
- 229910052750 molybdenum Inorganic materials 0.000 claims description 15
- 239000011733 molybdenum Substances 0.000 claims description 15
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 14
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 18
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003513 alkali Substances 0.000 abstract description 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 description 6
- 239000003570 air Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- RXQNKKRGJJRMKD-UHFFFAOYSA-N 5-bromo-2-methylaniline Chemical compound CC1=CC=C(Br)C=C1N RXQNKKRGJJRMKD-UHFFFAOYSA-N 0.000 description 1
- 229910015269 MoCu Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000061 acid fraction Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BIOOACNPATUQFW-UHFFFAOYSA-N calcium;dioxido(dioxo)molybdenum Chemical compound [Ca+2].[O-][Mo]([O-])(=O)=O BIOOACNPATUQFW-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 molybdenum ions Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- CMPGARWFYBADJI-UHFFFAOYSA-L tungstic acid Chemical compound O[W](O)(=O)=O CMPGARWFYBADJI-UHFFFAOYSA-L 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/26—Acidic compositions for etching refractory metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Resistance Heating (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Dry Development In Electrophotography (AREA)
- Catalysts (AREA)
- ing And Chemical Polishing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Chemical Treatment Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8006387A SE420108B (sv) | 1980-09-12 | 1980-09-12 | Forfarande for kemisk, automatisk upplosning av molybdenkerntrad i wolframspiraler jemte anordning for genomforande av forfarande |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD201828A5 true DD201828A5 (de) | 1983-08-10 |
Family
ID=20341712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD81233169A DD201828A5 (de) | 1980-09-12 | 1981-09-09 | Verfahren zur chemischen, automatischen aufloesung von molybdaenkerndraht in wolframwendeln sowie vorrichtung zur durchfuehrung des verfahrens |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4440729A (en]) |
| EP (1) | EP0048230B1 (en]) |
| JP (1) | JPS5779176A (en]) |
| AT (1) | ATE8828T1 (en]) |
| DD (1) | DD201828A5 (en]) |
| DE (1) | DE3165241D1 (en]) |
| ES (1) | ES505365A0 (en]) |
| HU (1) | HU183576B (en]) |
| SE (1) | SE420108B (en]) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0324086U (en]) * | 1989-07-17 | 1991-03-13 | ||
| US5072147A (en) * | 1990-05-09 | 1991-12-10 | General Electric Company | Low sag tungsten filament having an elongated lead interlocking grain structure and its use in lamps |
| EP0652104B1 (de) * | 1993-11-05 | 2002-04-10 | MAN Roland Druckmaschinen AG | Druckwerk für wasserlosen Offsetdruck |
| US5891354A (en) * | 1996-07-26 | 1999-04-06 | Fujitsu Limited | Methods of etching through wafers and substrates with a composite etch stop layer |
| US6871523B2 (en) * | 2003-03-31 | 2005-03-29 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for forming microchannels in a filament wire |
| US20040250589A1 (en) * | 2003-06-12 | 2004-12-16 | Daniel Hogan | Method and apparatus for forming discrete microcavities in a filament wire |
| US7040130B2 (en) * | 2003-10-14 | 2006-05-09 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for forming discrete microcavities in a filament wire using microparticles |
| US7204911B2 (en) * | 2004-03-19 | 2007-04-17 | Matsushita Electric Industrial Co., Ltd. | Process and apparatus for forming discrete microcavities in a filament wire using a polymer etching mask |
| US7243700B2 (en) * | 2005-10-27 | 2007-07-17 | United Technologies Corporation | Method for casting core removal |
| US20180244535A1 (en) * | 2017-02-24 | 2018-08-30 | BWXT Isotope Technology Group, Inc. | Titanium-molybdate and method for making the same |
| US11363709B2 (en) | 2017-02-24 | 2022-06-14 | BWXT Isotope Technology Group, Inc. | Irradiation targets for the production of radioisotopes |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US198776A (en) * | 1878-01-01 | Improvement in recovery of waste nitrous gases | ||
| US3739057A (en) * | 1971-07-09 | 1973-06-12 | Molybdenum Corp | Process for the recovery of rhenium and molybdenum values from molybdenite concentrate |
| JPS5231668B1 (en]) * | 1971-07-14 | 1977-08-16 | ||
| US3953263A (en) * | 1973-11-26 | 1976-04-27 | Hitachi, Ltd. | Process for preventing the formation of nitrogen monoxide in treatment of metals with nitric acid or mixed acid |
| CA1050731A (en) * | 1974-10-17 | 1979-03-20 | Derek G. E. Kerfoot | Hydrometallurgical production of technical grade molybdic oxide from molybdenite concentrates |
| US4144310A (en) * | 1977-11-30 | 1979-03-13 | Kennecott Copper Corporation | High slurry density sulfidic mineral leaching using nitrogen dioxide |
| US4189461A (en) * | 1977-11-30 | 1980-02-19 | Kennecott Copper Corporation | Metal leaching from concentrates using nitrogen dioxide in acids |
-
1980
- 1980-09-12 SE SE8006387A patent/SE420108B/sv not_active IP Right Cessation
-
1981
- 1981-04-14 US US06/302,215 patent/US4440729A/en not_active Expired - Fee Related
- 1981-09-09 DD DD81233169A patent/DD201828A5/de unknown
- 1981-09-09 EP EP81850153A patent/EP0048230B1/en not_active Expired
- 1981-09-09 AT AT81850153T patent/ATE8828T1/de not_active IP Right Cessation
- 1981-09-09 DE DE8181850153T patent/DE3165241D1/de not_active Expired
- 1981-09-10 ES ES505365A patent/ES505365A0/es active Granted
- 1981-09-11 JP JP56143718A patent/JPS5779176A/ja active Granted
- 1981-09-11 HU HU812640A patent/HU183576B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES8205876A1 (es) | 1982-08-16 |
| ES505365A0 (es) | 1982-08-16 |
| JPS5779176A (en) | 1982-05-18 |
| SE420108B (sv) | 1981-09-14 |
| JPS6337189B2 (en]) | 1988-07-25 |
| EP0048230B1 (en) | 1984-08-01 |
| DE3165241D1 (en) | 1984-09-06 |
| EP0048230A2 (en) | 1982-03-24 |
| EP0048230A3 (en) | 1982-09-22 |
| ATE8828T1 (de) | 1984-08-15 |
| US4440729A (en) | 1984-04-03 |
| HU183576B (en) | 1984-05-28 |
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