DE551399C - Treatment of aluminum sulphide melts - Google Patents

Treatment of aluminum sulphide melts

Info

Publication number
DE551399C
DE551399C DEV24009D DEV0024009D DE551399C DE 551399 C DE551399 C DE 551399C DE V24009 D DEV24009 D DE V24009D DE V0024009 D DEV0024009 D DE V0024009D DE 551399 C DE551399 C DE 551399C
Authority
DE
Germany
Prior art keywords
treatment
melts
aluminum
aluminum sulphide
melt
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
DEV24009D
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke 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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DEV24009D priority Critical patent/DE551399C/en
Application granted granted Critical
Publication of DE551399C publication Critical patent/DE551399C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00Compounds of aluminium
    • C01F7/02Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/38Preparation of aluminium oxide by thermal reduction of aluminous minerals
    • C01F7/40Preparation of aluminium oxide by thermal reduction of aluminous minerals in the presence of aluminium sulfide

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermal Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Behandlung von Aluminiumsulfidschmelzen Bisher hat man die durch Reduktion in Gegenwart von schwefelhaltigen Stoffen gewonnene Schmelze, bestehend aus Aluminiumoxyd und Aluminiumsulfid, die in folgendem kurz als Sulfidschmelze bezeichnet werden soll, nach dem Erstarren mit Wasser aufgeschlossen.Treatment of aluminum sulphide melts So far, one has that by reduction Melt obtained in the presence of sulphurous substances, consisting of aluminum oxide and aluminum sulfide, hereinafter referred to as sulfide melt for short should be digested with water after solidification.

Es ist bekannt, Aluminiumoxydschmelzen mit Gasen oder Flüssigkeiten, insbesondere Wasser, schnell abzukühlen, um eine besonders für die Elektrolyse geeignete Tonerde von großer Feinheit zu erzielen.It is known to melt aluminum oxide with gases or liquids, especially water, to be cooled quickly to make a particularly suitable one for electrolysis To obtain clay of great fineness.

Erfindungsgemäß wird dieses Verfahren zur Behandlung der nach dem Patent 451 523 hergestellten Sulfidschmelzen benutzt. Es hat sich gezeigt, daß das bekannte Verfahren hier mit viel größerer Intensität vor sich geht als bei den angegebenen bekannten Verfahren. Der Aluminiumsulfidgehalt reagiert mit dem Wasser, und es entwickeln sich derartige Energien, daß das Material, man kann beinahe sagen, bis zur molekularen Feinheit zerfällt. Man erhält eine Tonerde, wie sie sonst aus Aluminaten nur durch Ausrühren hergestellt werden konnte. Zur Abschreckung können verschiedene Wege beschritten werden, z. B. kann man die Schmelze direkt in Wasser laufen lassen, für dessen Erneuerung man natürlich Sorge tragen muß.According to the invention this method is used for treating the sulfide melts prepared according to the patent 451,523. It has been shown that the known method proceeds here with much greater intensity than in the case of the known methods indicated. The aluminum sulphide content reacts with the water, and such energies develop that the material, one could almost say, disintegrates to the point of molecular fineness. The result is an alumina that could otherwise only be produced from aluminates by stirring. Various ways can be used as a deterrent, e.g. B. you can let the melt run directly in water, for the renewal of course you have to take care.

Während sonst die Tonerde aus der Sulfidschmelze, wenn man sie auf einem io ooo-Maschensieb behandelt, etwa 7011/o Rückstand auf diesem Sieb beläßt, bleiben von der Tonerde der abgeschreckten Schmelze nur noch etwa 1711111 auf dem Sieb zurück. Eine Bayer-Tonerde, die auch auf dem io ooo-Maschensieb behandelt wurde, hinterließ im Durchschnitt 12111o Rückstand. Man kommt also mit Hilfe des Abschreckens tatsächlich auf Korngrößen der Tonerde, die denen der Bayer-Tonerde ungefähr gleichkommen.While otherwise the alumina from the sulphide melt when you put it on treated with a 10,000 mesh sieve, leaving about 7011 / o residue on this sieve, Only about 1711111 of the alumina of the quenched melt remain on the Sieve back. A Bayer clay that was also treated on the io ooo mesh sieve, left an average of 12,110 residue. So you come with the help of deterrence actually on grain sizes of the alumina which are approximately equal to those of Bayer alumina.

Claims (1)

PATENTANSPRUCH: Verfahren zur Behandlung von nach Patent 451 523 hergestellten Sulfidschmelzen, dadurch gekennzeichnet, daß die heiße Schmelze durch direkte Behandlung mit Wasser, beispielsweise Einlaufenlassen in Wasser, abgeschreckt wird.CLAIM OF THE PATENT: Process for the treatment of manufactured according to patent 451,523 Sulphide melts, characterized in that the hot melt by direct treatment is quenched with water, for example by being drained into water.
DEV24009D 1928-06-10 1928-06-10 Treatment of aluminum sulphide melts Expired DE551399C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV24009D DE551399C (en) 1928-06-10 1928-06-10 Treatment of aluminum sulphide melts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV24009D DE551399C (en) 1928-06-10 1928-06-10 Treatment of aluminum sulphide melts

Publications (1)

Publication Number Publication Date
DE551399C true DE551399C (en) 1932-09-03

Family

ID=7580894

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV24009D Expired DE551399C (en) 1928-06-10 1928-06-10 Treatment of aluminum sulphide melts

Country Status (1)

Country Link
DE (1) DE551399C (en)

Similar Documents

Publication Publication Date Title
DE1963128A1 (en) Process for cleaning and agglomeration of pyrite exhausts
DE1299568B (en) Process for the separation of radium from solutions
DE2141181C3 (en) Process for the processing of used carbon linings of an aluminum reduction cell
DE551399C (en) Treatment of aluminum sulphide melts
DE3523624A1 (en) METHOD FOR REMOVING AND RECOVERY METALS FROM AQUEOUS SOLUTIONS BY EXTRACTION
AT124737B (en) Contact or carrier body for cracking processes u. like
DE2817176A1 (en) PROCESS FOR MANUFACTURING A FILTER FABRIC WITH A LARGE SPECIFIC SURFACE
DE807332C (en) Process for modifying aluminum-silicon alloys
DE307085C (en)
DE2857381C2 (en) Extraction of lanthanides in the manufacture of filter materials
DE668873C (en) Process for converting platinum and other metals of the platinum group into dissolved form
DE730636C (en) Process for removing iron salts from aluminum salt solutions containing them
DE653981C (en) Process for reducing disadvantageous stresses on deformed metallic castings or forgings
DE634282C (en) Process for removing iron from aluminum sulfate or aluminum alum solutions
DE540621C (en) Process for deoiling substances containing oil
DE488047C (en) Extraction of metals and metal compounds that are soluble in ammoniacal alkaline solutions
DE622528C (en) Process for the separation of metals with a lower electropotential than hydrogen from metal salt solutions
DE339211C (en) Process for opening up clay, slate, marl, kaolin, halloysite, bauxite and laterite or similar compounds
DE2360112C3 (en) Extraction of clay and potassium sulfate from Alunit
DE326596C (en) Process for the treatment of lead-containing tin ores in which the lead content is removed
DE703159C (en) Process for the preparation of solid, sulfur-containing minerals by means of floating and sinking separation
DE447142C (en) Process for reducing the silicon content of iron-silicon-zirconium alloys
AT104009B (en) Process for the production of siliconized tool steel without sensitivity to hardness.
DE636610C (en) Process for removing tin from niobium alloys
AT117011B (en) Process for the production of pure sodium sulfide, in particular sodium sulfide suitable as a depilatory agent.