DE357593C - Device for concentrating sulfuric acid - Google Patents
Device for concentrating sulfuric acidInfo
- Publication number
- DE357593C DE357593C DEP35239D DEP0035239D DE357593C DE 357593 C DE357593 C DE 357593C DE P35239 D DEP35239 D DE P35239D DE P0035239 D DEP0035239 D DE P0035239D DE 357593 C DE357593 C DE 357593C
- Authority
- DE
- Germany
- Prior art keywords
- sulfuric acid
- concentrating sulfuric
- concentrating
- cast iron
- protected
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
Description
Einrichtung- zum Konzentrieren von Schwefelsäure. Nach Patent 299774 wird Schwefelsäure dadurch konzentriert, daß wäßrige Schwefelsäure auf einen Rektifikationsapparat aufgegeben wird, der mit einem gußeisernen Kochkessel so in Verbindung steht, daß in ihn die Schwefelsäure in angereichertem Zustand einfließt.Device - for concentrating sulfuric acid. According to patent 299774 sulfuric acid is concentrated by applying aqueous sulfuric acid to a rectifier is abandoned, which is so connected to a cast-iron kettle that the sulfuric acid flows into it in an enriched state.
Bei solchen Kesseln _ hat es sich herausgestellt, daß am oberen Rand die innere Ringfläche in. unverhältnismäßig kurzer Zeit zerstört wurde. Zum Schutz eingelegte Auskleidungen aus Chamottesteinen waren deswegen nicht geeignet, weil die unvermeidlich abfallenden Brocken am Boden des Gefäßes Ursache anderer Zerstörungserscheinungen wurden. Zahlreiche Beobachtungen ergaben nun, daß an der Zerstörung des oberen Kesselteiles das Gußeisen selbst dadurch beteiligt ist, daß es infolge der Aufstellung der Form beim Gießen an dieser Stelle blasig wird. Auf Grund dieser Erkenntnis reicht es aus, wenn die gefährdete Stelle durch einen .besonderen Ring aus dichtem Gußeisen geschützt wird.With such boilers it has been found that at the top the inner ring surface was destroyed in a disproportionately short time. For protection Inlaid linings made of chamotte stones were not suitable because the inevitably falling lumps at the bottom of the vessel cause other signs of destruction became. Numerous observations now showed that the destruction of the upper part of the boiler the cast iron itself is involved in that it is due to the setting up of the form becomes blistered at this point when pouring. Based on this knowledge, it is enough if the endangered area is protected by a special ring made of dense cast iron is protected.
In beiliegender Zeichnung ist ein Ausführungsbeispiel dargestellt.An exemplary embodiment is shown in the accompanying drawing.
Der Kessel a ist unter der erfahrungsgemäß gefährdeten Zone mit einem Flansch b versehen, auf den ein Ring c aus blasenfreiem Gußeisen aufgesetzt ist.The boiler a is under what experience has shown, the endangered zone with a Provided flange b on which a ring c made of bubble-free cast iron is placed.
Statt Gußeisen können natürlich auch seine Leg ierungeft (auch die sogenannten säurefesten) verwendet werden.Instead of cast iron, of course, its alloy (including the so-called acid-resistant) can be used.
Verstärkungen der Kesselwandung führen nicht zum Erfolg; denn jede Materialanhäufung bei so großen Gußstücken hat eine verstärkte Lunkerbildung zur Folge, wodurch die zu schützende Stelle erst recht gefährdet ist. Dagegen gelingt es leicht, einen Ring ohne jeden Lunker in gleichmäßiger Wandstärke herzustellen. Wird dieser dann schließlich doch angegriffen, so ist seine Auswechselung immer leichter und weniger störend und kostspielig als die der ganzen Pfanne.Reinforcements of the boiler wall do not lead to success; because each The accumulation of material in such large castings leads to increased cavity formation Consequence, whereby the area to be protected is even more at risk. On the other hand succeeds it is easy to produce a ring with a uniform wall thickness without any voids. If this is finally attacked, then his replacement is always lighter and less annoying and expensive than the whole pan.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP35239D DE357593C (en) | Device for concentrating sulfuric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP35239D DE357593C (en) | Device for concentrating sulfuric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE357593C true DE357593C (en) | 1922-10-27 |
Family
ID=7374116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP35239D Expired DE357593C (en) | Device for concentrating sulfuric acid |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE357593C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971044C (en) * | 1952-06-01 | 1958-12-04 | Basf Ag | Process for the continuous implementation of chemical reactions |
EP0037508A1 (en) * | 1980-04-05 | 1981-10-14 | Bayer Ag | Method for the decrease of corrosion on Pauling boilers |
DE3208980A1 (en) * | 1982-03-12 | 1983-10-13 | Hoechst Ag, 6230 Frankfurt | Pauling boiler |
-
0
- DE DEP35239D patent/DE357593C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE971044C (en) * | 1952-06-01 | 1958-12-04 | Basf Ag | Process for the continuous implementation of chemical reactions |
EP0037508A1 (en) * | 1980-04-05 | 1981-10-14 | Bayer Ag | Method for the decrease of corrosion on Pauling boilers |
DE3208980A1 (en) * | 1982-03-12 | 1983-10-13 | Hoechst Ag, 6230 Frankfurt | Pauling boiler |
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