DE443459C - Process for roasting oxide and carbonate ores - Google Patents

Process for roasting oxide and carbonate ores

Info

Publication number
DE443459C
DE443459C DEA43515D DEA0043515D DE443459C DE 443459 C DE443459 C DE 443459C DE A43515 D DEA43515 D DE A43515D DE A0043515 D DEA0043515 D DE A0043515D DE 443459 C DE443459 C DE 443459C
Authority
DE
Germany
Prior art keywords
ores
roasting
heat supply
external heat
carbonate ores
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
DEA43515D
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.)
HANS FLEISSNER DR
Original Assignee
HANS FLEISSNER DR
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 HANS FLEISSNER DR filed Critical HANS FLEISSNER DR
Priority to DEA43515D priority Critical patent/DE443459C/en
Application granted granted Critical
Publication of DE443459C publication Critical patent/DE443459C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating

Landscapes

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

Description

Verfahren zum Rösten oxydischer und carbonatischer Erze. Bei den bisher üblichen Röstverfahren geht man so vor, daß die Erze entweder mit Brennstoffen gemischt und durch deren Verbrennung oder durch besondere Gasfeuerungen erhitzt werden. Dabei finden Austreibung etwa vorhandener Kohlensäure und Übergang der niedrigen Oxydationsstufen des betreffenden- Metalles in die höheren statt. Es wurde auch erkannt, daß bei diesem Vorgang Wärme entwickelt wird, jedoch hat man bisher in der Praxis die für eine Ausnutzung dieser Wärmemengen erforderlichen Schlüsse nicht gezogen.Process for roasting oxide and carbonate ores. With the so far The usual roasting process is done in such a way that the ores are either mixed with fuels and heated by burning them or by special gas furnaces. Included find expulsion of any carbonic acid present and transition to the lower stages of oxidation of the metal in question in the higher place. It was also recognized that at this process heat is developed, but one has so far in practice the for the necessary conclusions were not drawn to utilize these amounts of heat.

Gemäß der Erfindung wird nun zwecks Nutzbarmachung dieser Wärmemengen und zwecks Verringerung des Brennstoffaufwandes beim Rösten oxydischer und carbonatischer Erze, die das betreffende Metall in einer niedrigen Oxydationsstufe enthalten, insbesondere von Spateisenstein, in der Weise verfahren, daß die Erze durch äußere Wärmezufuhr rasch auf "eine Temperatur erhitzt werden, bei der der Übergang der niedrigeren in die höheren Oxydationsstufen oder die Zerlegung der Erze eintritt, worauf dann die äußere Wärmezufuhr unterbrochen und lediglich ausreichende Mengen an Sauerstoff oder anderen oxydierend wirkenden -Gasen zugeführt werden.According to the invention is now for the purpose of utilizing these amounts of heat and for the purpose of reducing the fuel consumption when roasting oxidic and carbonatic Ores which contain the metal in question in a low oxidation state, in particular von Spateisenstein, proceed in such a way that the ores are removed by external heat supply rapidly heated to "a temperature at which the transition of the lower enters the higher stages of oxidation or the decomposition of the ores, whereupon then the external heat supply is interrupted and only sufficient amounts of oxygen or other gases with an oxidizing effect.

Die Durchführung des Verfahrens kann so erfolgen, daß das Erz zunächst rasch auf die erforderliche Temperatur gebracht und dann die Wärmezufuhr unterbrochen wird, worauf dann in den Reaktionsraum der erforderliche Sauerstoff oder das oxydierend wirkende Gas eingeleitet wird.The method can be carried out in such a way that the ore initially quickly brought to the required temperature and then interrupted the supply of heat is, whereupon the required oxygen or the oxidizing in the reaction chamber acting gas is introduced.

Das Verfahren läßt sich mit Vorteil im ununterbrochenen Betriebe durchführen, indem man in der oberen Zone eines Ofens die entsprechende Erhitzung durch äußere Wärmezufuhr vornimmt, während in der unteren Zone des Ofens lediglich durch Zufuhr des oxydierend wirkenden Gases der Prozeß zu Ende geführt wird.The procedure can be carried out with advantage in uninterrupted operations, by having the appropriate external heating in the upper zone of a furnace Carries out heat supply, while in the lower zone of the furnace only by supply of the oxidizing gas the process is brought to an end.

Das Verfahren hat gegenüber den bisherigen den Vorteil großer Brennstoffersparnis und vermeidet auch die zur Bildung schwer reduzierbarer Klumpen führende örtliche Überhitzung.The method has the advantage over the previous one of great fuel savings and also avoids the localized formation leading to the formation of hard-to-reduce clumps Overheating.

Claims (1)

1':\ ri:N rnasi'i:uc:11: Verfahren zum Rösten oxydis;cher und carbonatischer Erze, die das betreffende Metall in einer niedrigen Oxydationsstufe enthalten, insbesondere von Spateisenstein, dadurch gekennzeichnet, daß die Erze durch äußere Wärmezufuhr rasch auf eine Temperatur erhitzt werden, bei der der Übergang der niedrigeren in die höheren Oxydationsstufen oder die Zerlegung der Erze eintritt, worauf dann die äußere Wärmezufuhr unterbrochen und lediglich ausreichende Mengen an Sauerstoff oder anderen oxydierend wirkenden Gasen" zugeführt werden.1 ': \ ri: N rnasi'i: uc: 11: method of roasting oxydis; cher and carbonatischer Ores which contain the metal in question in a low oxidation state, in particular von Spateisenstein, characterized in that the ores are produced by external heat supply be heated rapidly to a temperature at which the transition of the lower in the higher stages of oxidation or the decomposition of the ores occurs, whereupon the External heat supply interrupted and only sufficient amounts of oxygen or other oxidizing gases "are supplied.
DEA43515D 1924-11-18 1924-11-18 Process for roasting oxide and carbonate ores Expired DE443459C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA43515D DE443459C (en) 1924-11-18 1924-11-18 Process for roasting oxide and carbonate ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA43515D DE443459C (en) 1924-11-18 1924-11-18 Process for roasting oxide and carbonate ores

Publications (1)

Publication Number Publication Date
DE443459C true DE443459C (en) 1927-04-28

Family

ID=6933686

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA43515D Expired DE443459C (en) 1924-11-18 1924-11-18 Process for roasting oxide and carbonate ores

Country Status (1)

Country Link
DE (1) DE443459C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748741C (en) * 1935-06-08 1944-11-09 Axel Hammarberg Process for the preparation of complex, oxidic iron chromium ores for chromium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748741C (en) * 1935-06-08 1944-11-09 Axel Hammarberg Process for the preparation of complex, oxidic iron chromium ores for chromium

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