DE520938C - Cleaning of iron-containing aluminum brine - Google Patents

Cleaning of iron-containing aluminum brine

Info

Publication number
DE520938C
DE520938C DEI40197D DEI0040197D DE520938C DE 520938 C DE520938 C DE 520938C DE I40197 D DEI40197 D DE I40197D DE I0040197 D DEI0040197 D DE I0040197D DE 520938 C DE520938 C DE 520938C
Authority
DE
Germany
Prior art keywords
iron
containing aluminum
cleaning
brine
aluminum brine
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
DEI40197D
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI40197D priority Critical patent/DE520938C/en
Application granted granted Critical
Publication of DE520938C publication Critical patent/DE520938C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides
    • C01F7/62—Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Reinigung von eisenhaltigen Aluminiumsalzlaugen Gegenstand der Erfindung ist ein Verfahren zur Reinigung von eisenhaltigen Aluminiumsalzlösungen, welches darauf beruht, daß gewissen organischen Lösungsmitteln die Fähigkeit zukommt, das Eisen als Ferrichlorid aufzunehmen, so daß bei deren Vermischung mit der Salzlösung eine praktisch eisenfreie Aluminiumsalzlauge entsteht. Weitere Voraussetzung für die Brauchbarkeit dieser organischen Lösungsmittel ist, daß sie in Wasser wenig oder gar nicht löslich sind und wenig flüchtig sind, vorteilhaft einen Siedepunkt oberhalb zoo° aufweisen. Zu diesen Lösungsmitteln gehören beispielsweise Cyclohexanon, Methylcyclohexanon, Benzylalkohol, Isoamylalkohol, Isobutylacetat und andere.Purification of iron-containing aluminum brine is the subject of the invention is a process for the purification of iron-containing aluminum salt solutions, which is based on the fact that certain organic solvents have the ability to To include iron as ferric chloride, so that when it is mixed with the salt solution a practically iron-free aluminum brine is produced. Another requirement for The usefulness of these organic solvents is that they do little in water or are not soluble at all and are not very volatile, advantageously have a boiling point show above zoo °. These solvents include, for example, cyclohexanone, Methylcyclohexanone, benzyl alcohol, isoamyl alcohol, isobutyl acetate, and others.

Beispiel i 1 einer Aluminiumchloridlauge entsprechend etwa 9o g A1203 und etwa Z g Fe" 03 im Liter wird bis auf 65o bis 700 g eingedampft und nach dem Erkalten mit dreimal je Zoo ccm Methylcyclohexanon ausgeschüttelt.Example 11 of an aluminum chloride liquor corresponding to about 90 g A1203 and about Z g Fe "03 per liter is evaporated down to 65o to 700 g and, after cooling, extracted three times per zoo ccm of methylcyclohexanone.

Die extrahierte Lösung enthält auf roo Teile Al. 0, nur mehr o,025 Teile Fe, 0, Das abgetrennte eisenchloridhaltige Methylcyclohexanon läßt sich durch einfaches Ausschütteln mit Wasser wieder vom Eisen befreien und in das Verfahren zurückführen.The extracted solution contains parts of Al. 0, only 0.025 parts Fe, 0, The separated iron chloride-containing methylcyclohexanone can be freed from iron by simply shaking with water and returned to the process.

Das Arbeiten mit den genannten Lösungsmitteln bietet praktisch gegenüber demjenigen mit Äther, der schon als Lösungsmittel für Eisenchlorid vorgeschlagen worden ist, den Vorteil, daß wegen der höheren Siedepunkte der vorgeschlagenen Mittel und wegen ihrer niedrigen Löslichkeit in Wasser geringere Verluste an denselben eintreten, sowie den weiteren Vorteil, daß die Lösungsmittel, wie oben erwähnt, unmittelbar nach dem Ausschütteln mit Wasser wieder verwendungsfähig sind.Working with the solvents mentioned offers practically opposite the one with ether who has already been suggested as a solvent for ferric chloride has the advantage that because of the higher boiling points of the proposed agents and because of their low solubility in water, lower losses of the same occur, as well as the further advantage that the solvents, as mentioned above, can be used again immediately after shaking with water.

Claims (1)

PATENTANSPRUCH: Reinigung von eisenhaltigen Aluminiumsalzlaugen, dadurch gekennzeichnet, daß man den Lösungen das Eisen entzieht durch Behandlung derselben mit organischen Lösungsmitteln für Ferrichlorid, die sich in Wasser wenig oder gar nicht lösen und einen Siedepunkt oberhalb etwa zoo° aufweisen.PATENT CLAIM: Cleaning of iron-containing aluminum brine, thereby characterized in that the iron is removed from the solutions by treating them with organic solvents for ferric chloride, which are little or even in water do not dissolve and have a boiling point above about zoo °.
DEI40197D 1929-12-20 1929-12-20 Cleaning of iron-containing aluminum brine Expired DE520938C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI40197D DE520938C (en) 1929-12-20 1929-12-20 Cleaning of iron-containing aluminum brine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI40197D DE520938C (en) 1929-12-20 1929-12-20 Cleaning of iron-containing aluminum brine

Publications (1)

Publication Number Publication Date
DE520938C true DE520938C (en) 1931-03-14

Family

ID=7190243

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI40197D Expired DE520938C (en) 1929-12-20 1929-12-20 Cleaning of iron-containing aluminum brine

Country Status (1)

Country Link
DE (1) DE520938C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934403A (en) * 1950-07-18 1960-04-26 Ader Milton Recovery of americium
DE1194829B (en) * 1960-08-27 1965-06-16 Asahi Chemical Ind Process for the purification of the alumina hydrate obtained after alkaline digestion of aluminum-containing ore

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934403A (en) * 1950-07-18 1960-04-26 Ader Milton Recovery of americium
DE1194829B (en) * 1960-08-27 1965-06-16 Asahi Chemical Ind Process for the purification of the alumina hydrate obtained after alkaline digestion of aluminum-containing ore

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