DE937585C - Process for the production of disperse lead oxide - Google Patents
Process for the production of disperse lead oxideInfo
- Publication number
- DE937585C DE937585C DEG13214A DEG0013214A DE937585C DE 937585 C DE937585 C DE 937585C DE G13214 A DEG13214 A DE G13214A DE G0013214 A DEG0013214 A DE G0013214A DE 937585 C DE937585 C DE 937585C
- Authority
- DE
- Germany
- Prior art keywords
- lead
- lead oxide
- production
- oxygen
- disperse
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G21/00—Compounds of lead
- C01G21/02—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Es ist bekannt, aus metallischem Blei, Bleioxyd oder Bleiverbindungen und .Sauerstoff Bleioxyd bzw. Mennige in hochdisperser Form zu gewinnen, wenn man den Rohstoff durch den Dampfzustand hindurchfuhrt, so daß jeder Gehalt an oxydierbarem Metall im Endprodukt ausgeschlossen ist. Diese Verfahren erfordern aber viel Energie in Form von elektrischem Strom, der zur Erhitzung und Verdampfung des Ausgangsstoffes erforderlich ist; aber -nur so hat man bisher erreicht, daß eine regelrechte Bleiflamme in Sauerstoff brennt, deren Abgase dann das hochdisperse Bleioxyd ergeben.It is known to be made of metallic lead, lead oxide or lead compounds and. Oxygen lead oxide or red lead to win in highly dispersed form, if you the raw material passes through the vapor state, so that every content of oxidizable Metal is excluded in the end product. However, these processes require a lot of energy in the form of an electric current that heats and vaporizes the raw material is required; but-only in this way has so far been achieved that a real lead flame burns in oxygen, the exhaust gases of which then result in the highly dispersed lead oxide.
Es wurde nun gefunden, daß man die. Bleiflämnze in Sauerstoff auch ohne Zufuhr von Energie aufrechterhalten kann, wenn man dafür sorgt, daß die durch die Bleiflamme erzeugte Hitze oder Strahlung. _ in beträchtlichem Umfang auf das zu verbrennende Blei zurückfällt. Dies gelingt durch eine zweckentsprechende Konstruktion des Verbrennungsraumes. Dieser wird erfindungsgemäß so konstruiert, daß das Blei, direkt bevor es verbrennt, in -dannen Schichten sowohl dem Sauerstoff als auch der Strahlungswärme der eigenen Flamme -ausgesetzt ist. Auf diese Weise entsteht ein Bleioxyddampf, der nur geringe Mengen Sauerstoff enthält und aus dem sich grobdisperses Bleioxyd abscheidet, wenn er abgekühlt wird. Wenn der Bleidampf aber durch Zugabe von Stickstoff oder Luft schnell abgeschreckt wird, so entsteht ein feindisperses Produkt. Nimmt man zum Abschrecken@Säuerstöff und gibt dem Produkt zwischen 300 und 5oö° genügend Zeit zur Umwandlung in Mennige, so entsteht diese direkt. pse-..D.ispersitätdes gewonnenen Produktes ist abhängig von der Menge des Gases, das man zum Abschrecken benutzt, und ist in weiten Grenzen variierbar. In der beiliegenden Zeichnung ist ein Bleibrenner zur Herstellung von Bleioxyd abgebildet. Durch die Mitte wird flüssiges, gegebenenfalls hocherhitztes Blei (r) kontinuierlich hochgedrückt. Dieses verbrennt in einer pfannen--artgen Vertiefung (a) in dem seitlich durch Ringdüsen zuströmenden, gegebenenfalls erhitzten Sauerstoff (3). Der gebildeteBleioxyddampf strömt durch die-Mitte (q.) einer Abschlußplatte des Verbrennungsraumes und wird oberhalb von dieser im Raum (5) durch eingeblasene Luft, Stickstoff oder Sauerstoff, die durch Leitung 6 einströmen, abgeschreckt und verdünnt. Die Verdünnungsgase können im Kreislauf geführt werden, wenn man dafür sorgt, daß sie bei der Abscheidung des Bleioxydes gekühlt werden.It has now been found that the. Lead flame can be maintained in oxygen even without the addition of energy, if one takes care of the heat or radiation generated by the lead flame. _ falls back to a considerable extent on the lead to be burned. This is achieved through an appropriate construction of the combustion chamber. According to the invention, this is constructed in such a way that the lead, immediately before it burns, is then exposed in layers to both the oxygen and the radiant heat of its own flame. This creates lead oxide vapor which contains only small amounts of oxygen and from which coarsely dispersed lead oxide separates out when it is cooled. However, if the lead vapor is quickly quenched by adding nitrogen or air, a finely dispersed product is created. If you take @ Säuerstöff for quenching and give the product between 300 and 5oö ° enough time to convert into red lead, this is created directly. pse - .. The dispersity of the product obtained depends on the amount of gas that is used for quenching and can be varied within wide limits. The accompanying drawing shows a lead burner for the production of lead oxide. Liquid, possibly highly heated lead (r) is continuously pushed up through the middle. This burns in a pan-like depression (a) in the oxygen (3), which is optionally heated, and flows in through ring nozzles. The lead oxide vapor formed flows through the middle (q.) Of a closing plate of the combustion chamber and is quenched and diluted above this in chamber (5) by air, nitrogen or oxygen flowing in through line 6. The diluent gases can be circulated if it is ensured that they are cooled during the separation of the lead oxide.
Auf diese beispielsweise Ausführung der Vorrichtung ist das Verfahren nicht beschränkt.The method is based on this embodiment of the device, for example not restricted.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG13214A DE937585C (en) | 1953-12-04 | 1953-12-04 | Process for the production of disperse lead oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG13214A DE937585C (en) | 1953-12-04 | 1953-12-04 | Process for the production of disperse lead oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE937585C true DE937585C (en) | 1956-01-12 |
Family
ID=7119977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG13214A Expired DE937585C (en) | 1953-12-04 | 1953-12-04 | Process for the production of disperse lead oxide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE937585C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331145A1 (en) * | 1983-08-30 | 1985-03-14 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | LIGHT METAL CYLINDER HEAD FOR PISTON PISTON COMBUSTION ENGINES |
| DE19803970A1 (en) * | 1998-01-23 | 1999-07-29 | Gerhart Haferkorn | High purity metal oxide, for use in the chemical, ceramics or electrical industry |
| DE19803969A1 (en) * | 1998-01-23 | 1999-07-29 | Gerhart Haferkorn | One-step production of highly pure lead monoxide, used as raw material in the glass industry |
-
1953
- 1953-12-04 DE DEG13214A patent/DE937585C/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3331145A1 (en) * | 1983-08-30 | 1985-03-14 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | LIGHT METAL CYLINDER HEAD FOR PISTON PISTON COMBUSTION ENGINES |
| DE19803970A1 (en) * | 1998-01-23 | 1999-07-29 | Gerhart Haferkorn | High purity metal oxide, for use in the chemical, ceramics or electrical industry |
| DE19803969A1 (en) * | 1998-01-23 | 1999-07-29 | Gerhart Haferkorn | One-step production of highly pure lead monoxide, used as raw material in the glass industry |
| DE19803969C2 (en) * | 1998-01-23 | 2003-05-08 | Gerhart Haferkorn | Autothermal process for the production of high-purity lead smoothness (PbO) |
| DE19803970C2 (en) * | 1998-01-23 | 2003-05-15 | Gerhart Haferkorn | Autothermal process for the production of high-purity metal oxides |
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