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DE1205569B - Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures - Google Patents

Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures

Info

Publication number
DE1205569B
DE1205569B DEH41250A DEH0041250A DE1205569B DE 1205569 B DE1205569 B DE 1205569B DE H41250 A DEH41250 A DE H41250A DE H0041250 A DEH0041250 A DE H0041250A DE 1205569 B DE1205569 B DE 1205569B
Authority
DE
Germany
Prior art keywords
iron
production
lateritic
reduced
low temperatures
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.)
Pending
Application number
DEH41250A
Other languages
German (de)
Inventor
Dipl-Ing Kurd Von Haken
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.)
VERONIKA VON HAKEN GEB DALTROP
Original Assignee
VERONIKA VON HAKEN GEB DALTROP
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 VERONIKA VON HAKEN GEB DALTROP filed Critical VERONIKA VON HAKEN GEB DALTROP
Priority to DEH41250A priority Critical patent/DE1205569B/en
Publication of DE1205569B publication Critical patent/DE1205569B/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zur Erzeugung von verformten Eisenluppen aus bei tiefen Temperaturen reduzierten lateritischen Eisenerzen Lateritische Eisenerze machen nach ihrer Behandlung zu y-Fe20, und anschließender Reduktion bei tiefen Temperaturen Schwierigkeiten bei der Trennung des metallischen Eisens von der Gangart.Process for the production of deformed iron flakes from at depths Temperatures reduced lateritic iron ores make lateritic iron ores after their treatment to y-Fe20, and subsequent reduction at low temperatures Difficulty separating the metallic iron from the gait.

Nach der Erfindung, welche ein Verfahren zur Erzeugung von verformten Eisenluppen aus zu y-Fe20, oxydierten und dann bei tiefen Temperaturen reduzierten lateritischen Eisenerzen betrifft, sollen die genannten Schwierigkeiten erfindungsgemäß dadurch behoben werden, daß diese reduzierten Eisenerze zum Binden der Fremdstoffe, besonders der Silikate, mit geringen Mengen an Alkalien oder Erdalkalien gemischt und auf Temperaturen von etwa 800 bis 10001 C erhitzt und anschließend in Heißmühlen mit groben Kugeln bearbeitet werden.According to the invention, which relates to a process for the production of deformed iron flakes from lateritic iron ores oxidized to y-Fe 2 O and then reduced at low temperatures, the difficulties mentioned are to be eliminated according to the invention by using these reduced iron ores to bind foreign substances, especially silicates , mixed with small amounts of alkalis or alkaline earths and heated to temperatures of around 800 to 10001 C and then processed in hot mills with coarse balls.

Dieses Verfahren, bei dem das feinteilige Eisen bzw. der Eisenstaub bei etwa Schmiedetemperaturen mit der Gangart zusammen in Heißmühlen bearbeitet bzw. gehämmert wird, hat den Vorteil, daß einerseits die Gangart, besonders die Silikatanteile und die zugesetzten Alkalien oder Erdalkalien zu mürben Stücken aneinander gebunden werden, die in der Kälte zerfallen, während das von Verunreinigungen freie Eisen leicht bei Temperaturen zwischen etwa 800 bis 9001 C in bekannter Weise unter Ab- stoßung der Fremdbestandteile zu verformten Eisenluppen verschweißt wird.This process, in which the finely divided iron or iron dust is machined or hammered together with the gangue in hot mills at about forging temperatures, has the advantage that on the one hand the gangue, especially the silicate components and the added alkalis or alkaline earths, are bound to one another to friable pieces be that disintegrate in the cold, while the impurity-free iron slightly stoßung at temperatures between about 800-9001 C in a known manner under the waste impurities to Eisenluppen deformed welded.

Dagegen ermöglichen bei höheren Temperaturen um 1100 bis 12001 C geschmolzene Schlacken ohne ihre Bearbeitung durch Schmieden mittels Walzen nur eine lockere Zusammenballung des Eisens in den Schlacken, so daß diese nach erfolgter Abkühlung nicht von den Eisenluppen abfallen können.On the other hand, slag melted at higher temperatures around 1100 to 12001 C without being processed by forging by means of rollers only allows the iron to be loosely agglomerated in the slag so that it cannot fall off the iron flakes after cooling.

Bei dem erfindungsgemäßen Verfahren werden die Eisenpartikeln in Heißmühlen mit Hartporzellanauskleidung durch Einwirkung entsprechender Kugeln ohne besonders große Hammerwirkung aneinandergeschweißt, wodurch die leicht gesinterte Gangart abgeschieden wird.In the method according to the invention, the iron particles are in hot mills with hard porcelain lining by the action of corresponding balls without special great hammer effect welded together, creating the slightly sintered gait is deposited.

Claims (2)

Patentanspräche: 1. Verfahren zur Erzeugung von verformten Eisenluppen aus zunächst zu y-Fe.0. oxydierten und dann bei tiefen Temperaturen reduzierten lateritischen Eisenerzen, d a d u r c h g e k c n n - zeichnet, daß diese reduzierten Eisenerze zum Binden der Fremdstoffe, besonders der Silikate, mit geringen Mengen an Alkalien oder Erdalkalien gemischt und auf Temperaturen von etwa 800 bis 1000' C erhitzt und anschließend in Heißmühlen mit groben Kugeln bearbeitet werden. Patent claims: 1. Process for the production of deformed iron flakes from initially to y-Fe.0. oxidized and then at low temperatures reduced lateritic ores, d a d u rch g e kc nn - is characterized in that these reduced iron ores for binding the impurities, especially silicates, mixed with small amounts of alkalies or alkaline earths and to temperatures of about 800 to 1000 'C and then processed in hot mills with coarse balls. 2. Einrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß einem an sich bekannten Reduktionsofen ein Ofen zur Erhitzung des bereits reduzierten Gutes auf etwa 800 bis 1000' C nachgeordnet ist, an den sich zur Bearbeitung dieses Gutes Heißmühlen, z. B. mit Hartporzellanauskleidung mit entsprechenden Kugeln, anschließen. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 896 050; Zeitschrift »Umschau«, 1960, H. 1, S. 14.2. Device for performing the method according to claim 1, characterized in that a known reduction furnace is followed by an oven for heating the already reduced material to about 800 to 1000 ° C, to which hot mills, for. B. with hard porcelain lining with appropriate balls connect. Documents considered: German Patent No. 896 050; Umschau magazine, 1960, no. 1, p. 14.
DEH41250A 1960-12-19 1960-12-19 Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures Pending DE1205569B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH41250A DE1205569B (en) 1960-12-19 1960-12-19 Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH41250A DE1205569B (en) 1960-12-19 1960-12-19 Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures

Publications (1)

Publication Number Publication Date
DE1205569B true DE1205569B (en) 1965-11-25

Family

ID=7154491

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH41250A Pending DE1205569B (en) 1960-12-19 1960-12-19 Process for the production of deformed iron flakes from lateritic iron ores reduced at low temperatures

Country Status (1)

Country Link
DE (1) DE1205569B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896050C (en) * 1951-04-24 1953-11-09 Kurd Von Dipl-Ing Haken Process for the extraction of pure iron oxide and iron from ores, especially from poor ores

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE896050C (en) * 1951-04-24 1953-11-09 Kurd Von Dipl-Ing Haken Process for the extraction of pure iron oxide and iron from ores, especially from poor ores

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