DE357593C - Device for concentrating sulfuric acid - Google Patents

Device for concentrating sulfuric acid

Info

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
Application number
DEP35239D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARRY PAULING DIPL ING
Original Assignee
HARRY PAULING DIPL ING
Publication date
Priority to DEP35239D priority Critical patent/DE357593C/en
Application granted granted Critical
Publication of DE357593C publication Critical patent/DE357593C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00Sulfur; Compounds thereof
    • C01B17/69Sulfur trioxide; Sulfuric acid
    • C01B17/88Concentration 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)

PATENTANSPRUCH: Einrichtung zum Konzentrieren von Schwefelsäure gemäß Patent 299774, dadurch gekennzeichnet, daß der Kochkessel im oberen gefährdeten Teil mit einem besonderen gußeisernen Ring ausgekleidet ist. PATENT CLAIM: Device for concentrating sulfuric acid according to patent 299774, characterized in that the upper endangered part of the cooking kettle is lined with a special cast-iron ring.
DEP35239D Device for concentrating sulfuric acid Expired DE357593C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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