DE196329C - - Google Patents
Info
- Publication number
- DE196329C DE196329C DENDAT196329D DE196329DA DE196329C DE 196329 C DE196329 C DE 196329C DE NDAT196329 D DENDAT196329 D DE NDAT196329D DE 196329D A DE196329D A DE 196329DA DE 196329 C DE196329 C DE 196329C
- Authority
- DE
- Germany
- Prior art keywords
- tungsten
- diphenyl
- threads
- electric current
- benzidine
- 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.)
- Active
Links
- DZKDPOPGYFUOGI-UHFFFAOYSA-N Tungsten(IV) oxide Chemical compound O=[W]=O DZKDPOPGYFUOGI-UHFFFAOYSA-N 0.000 claims description 6
- 235000010290 biphenyl Nutrition 0.000 claims description 5
- 125000003368 amide group Chemical group 0.000 claims description 4
- 239000004305 biphenyl Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- HFACYLZERDEVSX-UHFFFAOYSA-N Benzidine Chemical compound C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 2
- 238000000197 pyrolysis Methods 0.000 claims description 2
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- YCYDNCXRZDYWQN-UHFFFAOYSA-N 4-(4-aminophenyl)aniline;hypochlorous acid Chemical compound ClO.C1=CC(N)=CC=C1C1=CC=C(N)C=C1 YCYDNCXRZDYWQN-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000126 substance Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Insulating Materials (AREA)
Description
KAISERLICHESIMPERIAL
PAT/E NTAMT.PAT / E NTAMT.
Amidoderivate des Diphenyle oder deren Homologen in Form ihrer salzsauren Salze (Benzidinchlorhydrat usw.) besitzen die Eigenschaft, sich mit Wolfram zu verbinden. So kann man beispielsweise aus einer normalen Para- oder Metawolframatlösung mittels Benzidinchlorhydrat das Benzidinwolframat fällen. Den Gegenstand der vorliegenden Erfindung bildet nun ein Verfahren zur Herstellung vonAmido derivatives of diphenyl or their homologues in the form of their hydrochloric acid salts (Benzidine chlorohydrate, etc.) have the property of combining with tungsten. So you can, for example, from a normal para or metatungstate solution using benzidine chlorohydrate precipitate the benzidine tungstate. The subject of the present invention now forms a process for the production of
ίο Glühfäden für elektrische Glühlampen aus den wolframsauren Amidoderivaten des Diphenyle. Zu diesem Zwecke setzt man diesen Substanzen (wie Benzidinwolframat usw.) ein Bindemittel und eventuell eine zur Bindung der in der Paste vorhandenen Kohlenstoffmenge ausreichenden Quantität eines Wolframoxydes zu und preßt daraus Fäden. Diese Fäden werden dann unter Luftabschluß einer trockenen Destillation unterworfen und hierauf in einem reduzierenden Gase oder im Vakuum mittels des elektrischen Stromes geglüht. ίο Filaments for electric light bulbs from the Tungstenic acid amido derivatives of diphenyls. These substances are used for this purpose (such as benzidine tungstate, etc.) a binder and possibly one for binding the quantity of tungsten oxide sufficient for the amount of carbon present in the paste and press threads out of it. These threads are then sealed in the air Subjected to dry distillation and then in a reducing gas or im Annealed vacuum by means of electric current.
Man erhält auch gute Glühfäden, indem man einen Baumwollfaden mit Wolframdioxyd imprägniert oder nur bestreicht und dann abwechselnd in eine Ammoniumparaoder Metawolframatlösung, darauf in eine Lösung irgendeines salzsauren Salzes eines Amidoderivates des Diphenyls taucht und diesen Vorgang so oft wiederholt, als man schwächere oder stärkere Fäden erzeugen will. Solche Fäden werden getrocknet und dann karbonisiert. Nach Beendigung dieses Prozesses werden die Fäden in einer Wasserdampf enthaltenden, reduzierenden Atmosphäre der Einwirkung des elektrischen Stromes unterworfen (zum Glühen gebracht), wobei die Reaktion vor sich geht. Zunächst verbrennt der Baumwollfaden auf Kosten des Wolframdioxydes; ferner wird das dem Faden anhaftende Ammoniumchlorid verflüchtigt (wenn dies nicht schon zum großen Teil beim Karbonisieren geschehen ist) und endlich erfolgt die Reduktion des Wolframsäureamidoderivates. Man erhält hierdurch' einen zusammengesinterten, metallisch glänzenden, aus reinem Wolfram bestehenden Faden.Good filaments can also be obtained by mixing a cotton thread with tungsten dioxide impregnated or just coated and then alternately in an ammonium paraoder Metatungstate solution, then immersed in a solution of any hydrochloric acid salt of an amido derivative of diphenyl and repeat this process as often as you want to create weaker or stronger threads. Such threads are dried and then carbonized. After finishing this process the threads are exposed to the action of the electric in a reducing atmosphere containing water vapor Subjected to current (made to glow), the reaction going on. First the cotton thread burns at the expense of tungsten dioxide; furthermore this becomes the thread adhering ammonium chloride volatilizes (if not already in large part has happened during carbonization) and finally the reduction of the tungstic acid amido derivative takes place. This gives a sintered together, metallically shiny thread consisting of pure tungsten.
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE196329C true DE196329C (en) |
Family
ID=459322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT196329D Active DE196329C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE196329C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE752641C (en) * | 1939-03-19 | 1953-03-16 | Degussa | Process for the production of metal powders |
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0
- DE DENDAT196329D patent/DE196329C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE752641C (en) * | 1939-03-19 | 1953-03-16 | Degussa | Process for the production of metal powders |
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