AT32646B - Process for the manufacture of light bodies for electric light bulbs. - Google Patents
Process for the manufacture of light bodies for electric light bulbs.Info
- Publication number
- AT32646B AT32646B AT32646DA AT32646B AT 32646 B AT32646 B AT 32646B AT 32646D A AT32646D A AT 32646DA AT 32646 B AT32646 B AT 32646B
- Authority
- AT
- Austria
- Prior art keywords
- carbon
- water vapor
- hydrogen
- light
- manufacture
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 239000010953 base metal Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Landscapes
- Discharge Lamp (AREA)
Description
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dampfgehalt ; doch kann der Prozess auch bei geringen Quantitäten zu Ende geführt werden.
Was das Verhältnis zwischen Wasserstoff und Wasserdampf betrifft, so hat es sich ergeben, dass sich Fäden aus Molybdän und Kohle in reine Molybdänfäden überführen lassen, wenn auf 100 Teile Wasserstoff im Maximum bis zu 20 Teile Wasserdampf kommen. Fäden aus Wolfram und Kohle scheinen weniger Wasserdampf zu vertragen. Man arbeitet am besten mit einem Gemenge, das auf 100 Teile Wasserstoff im Maximum 10 Teile Wasserdampf enthält. Unter ähnlichen Verhältnissen wird das Tantalmetall metallisch rein erhalten, doch ist es besser, den Gehalt an Wasserdampf noch weiter bis auf 5% zu vermindern.
Da der Kohlenstoff auch von sehr geringen Mengen Wasserdampf-vollständig entfernt wird, wird man immer gut tun, in bezug auf das Quantum Wasserdampf nicht an die äusserste Grenze des Gestatteten zu gehen, sondern den Wasserdampf nur in solchem Masse zuzulassen, als es zur sicheren Entfernung des Kohlenstoffes in nicht allzu langer Zeit nötig ist. Es ist sehr zweckmässig, das bei der Reaktion entstehende Kohlenoxyd zu entfernen, am einfachsten dadurch, dass man das Gefäss, in dem die Operation vorgenommen wird, mit einem frischen Gemisch von Wasserstoff und Wasserdampf beschickt. Es ist keineswegs nötig, mit reinem Wasserstoff und Wasserdampf zu arbeiten, man kann vielmehr mit Stickstoff verdünnen, wenn nur das Verhältnis zwischen Wasserdampf und . Wasserstoff das richtige ist.
Ein besonderer Vorzug des Verfahrens ist der, dass man bei ge- wöhnlichem Druck arbeiten kann und Spuren von Luft nicht ängstlich auszuschliessen braucht, da bei dem grossen Überschuss von Wasserstoff hinzutretende Spuren von Sauerstoff nicht anders wirken, wie Wasserdampf.
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steam content; however, the process can be completed even with small quantities.
As far as the relationship between hydrogen and water vapor is concerned, it has been found that threads made of molybdenum and carbon can be converted into pure molybdenum threads if there is a maximum of 20 parts water vapor for 100 parts of hydrogen. Tungsten and carbon threads seem to be less able to tolerate water vapor. It is best to work with a mixture that contains a maximum of 10 parts of water vapor per 100 parts of hydrogen. Under similar conditions, the tantalum metal is obtained metallically pure, but it is better to reduce the water vapor content even further down to 5%.
Since the carbon is completely removed even from very small amounts of water vapor, one will always do well not to go to the extreme limit of what is permitted with regard to the quantity of water vapor, but to allow the water vapor only to the extent that it is safe to remove of carbon is necessary in a not too long time. It is very useful to remove the carbon dioxide produced during the reaction, the easiest way to do this by filling the vessel in which the operation is carried out with a fresh mixture of hydrogen and water vapor. It is by no means necessary to work with pure hydrogen and water vapor, one can rather dilute with nitrogen, if only the ratio between water vapor and. Hydrogen is right.
A particular advantage of the process is that you can work at normal pressure and you do not have to fearfully exclude traces of air, since with the large excess of hydrogen, traces of oxygen do not act differently than water vapor.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1905182683D DE182683C (en) | 1905-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT32646B true AT32646B (en) | 1908-04-25 |
Family
ID=5718214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT32646D AT32646B (en) | 1905-01-17 | 1905-09-11 | Process for the manufacture of light bodies for electric light bulbs. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT32646B (en) |
-
1905
- 1905-09-11 AT AT32646D patent/AT32646B/en active
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