DE593154C - Process for the extraction of metals from ores - Google Patents
Process for the extraction of metals from oresInfo
- Publication number
- DE593154C DE593154C DEG84377D DEG0084377D DE593154C DE 593154 C DE593154 C DE 593154C DE G84377 D DEG84377 D DE G84377D DE G0084377 D DEG0084377 D DE G0084377D DE 593154 C DE593154 C DE 593154C
- Authority
- DE
- Germany
- Prior art keywords
- heat treatment
- ores
- metals
- iron
- inert gas
- 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
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
- C22B5/00—General methods of reducing to metals
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur Gewinnung von Metallen aus Erzen Die vorliegende Erfindung bezweckt die Gewinnung von Metallen unmittelbar aus oxydischen Erzen oder aus Gemischen von oxydischen mit sulfidischen Erzen. Es sind Verfahren bekannt, um aus eisenhaltigen sulfidischen und arsenischen Erzen durch eine Wärmebehandlung unter Luftabschluß oder in inerten oder reduzierenden Gasströmen oder Gemischen von solchen bei Temperaturen, die erheblich unter den Schmelzpunkten der Erze liegen, die Metalle unmittelbar aus ihren Verbindungen gediegen freizulegen und zu gröberen Teilchen zusammenzutreiben. Ist Eisen oder .eine Eisenverbindung .nicht in genügender Menge in dem Erz vorbanden, so wird das Verfahren unter Zusatz von Eisen oder Eisenoxyd durchgeführt. Es hat sich nun gezeigt, daß dieses Verfahren ohne weiteres unter den gleichen Bedingungen auch für oxydische Erze oder auch für Gemische von oxydischen Erzen mit sulfidischen Erzen durchführbar ist. Allerdings läßt sich oxydisches Erz bei der Behandlung in inerten Gasströmen nicht durch Zusatz von Eisenoxyden reduzieren, sondern man muß metallisches Eisen zusetzen.Process for the extraction of metals from ores The present invention aims to extract metals directly from oxide ores or from mixtures of oxidic and sulphidic ores. There are known methods to get out of ferrous sulphidic and arsenic ores by heat treatment in the absence of air or in inert or reducing gas streams or mixtures of such at temperatures which are considerably below the melting point of the ores, the metals directly to expose them from their connections and to drive them together into coarser particles. If iron or an iron compound is not present in the ore in sufficient quantity, so the process is carried out with the addition of iron or iron oxide. It has It has now been shown that this process can be carried out easily under the same conditions also for oxide ores or for mixtures of oxide ores with sulfidic ores Ore is feasible. However, oxidic ore can be used in the treatment Do not reduce inert gas streams by adding iron oxides, but you have to add metallic iron.
Beispielsweise ist es gelungen, aus einem Kupferoxyd-Eisen-Gemisch vom Verhältnis i : i und einer Korngröße von etwa o,3 nun in. 2stündiger Behandlung in einem Stickstoffstrom bei 6oo° C bereits 8o % des Kupfers metallisch freizulegen, während sich der frei werdende Schwefel mit dem Eisen zu Schwefeleisen verbindet. Das Verfahren ist besonders auch für Gemische und Verwachsungen von oxydischen mit sulfidischen Erzen. anwendbar, die heute wegen dieser verschiedenartigen Erzführung bei der Aufbereitung Schwierigkeiten machen. Derartige Erze lassen sich ebenfalls durch Eisen leicht bei unter den Schmelzpunkten liegender W ärmebehandlung in inerten oder Gemischen von solchen mit reduzierenden Gasströmen derartig beeinflussen, daß die Metalle freigelegt und zu gröberen Teilchen zusammengetrieben werden, die sich leicht aufbereiten lassen. Besondere Bedeutung hat das Verfahren daher für alle Erzlagerstätten, bei denen die oxydischen Erze allmählich in sulfidische übergehen. Das Verfahren ist in inerter oder reduzierender Atmosphäre ohne Gasstrom durchführbar, wenn das Erz äußerst fein zerkleinert und innig mit Eisen oder oxydischen Eisenverbindungen gemischt wird. Bei gröberem Korn ist die Benutzung von Gasströmen zweckmäßig. Als reduzierende Gase kommen reine Gase, wie Wasserstoff, Kohlenwasserstoff, Kohlenoxyd, Leuchtgas, Wassergas, oder Mischungen von solchen untereinander oder mit Wasserdampf oder inerten Gasen in Frage.For example, it has been possible to use a copper oxide-iron mixture of the ratio i: i and a grain size of about 0.3 now in. 2 hours of treatment to expose already 80% of the copper in a metal stream at 600 ° C, while the released sulfur combines with the iron to form sulfur iron. The process is particularly suitable for mixtures and adhesions of oxydic with sulfidic ores. applicable today because of this different ore management cause difficulties during processing. Such ores can also be used slightly due to iron if the heat treatment is below the melting point in inert or mixtures of those with reducing gas streams in such a way that the metals are exposed and compacted into coarser particles, which become can be easily processed. The procedure is therefore of particular importance for everyone Ore deposits in which the oxidic ores gradually change to sulphidic ones. The process can be carried out in an inert or reducing atmosphere without gas flow, when the ore has been crushed extremely finely and intimately with iron or oxidic iron compounds is mixed. In the case of coarser grains, it is advisable to use gas streams. as reducing gases come pure gases such as hydrogen, hydrocarbons, carbon oxides, Illuminating gas, water gas, or mixtures of these with one another or with water vapor or inert gases in question.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG84377D DE593154C (en) | 1932-12-24 | 1932-12-24 | Process for the extraction of metals from ores |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG84377D DE593154C (en) | 1932-12-24 | 1932-12-24 | Process for the extraction of metals from ores |
Publications (1)
Publication Number | Publication Date |
---|---|
DE593154C true DE593154C (en) | 1934-02-22 |
Family
ID=7137985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG84377D Expired DE593154C (en) | 1932-12-24 | 1932-12-24 | Process for the extraction of metals from ores |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE593154C (en) |
-
1932
- 1932-12-24 DE DEG84377D patent/DE593154C/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE593154C (en) | Process for the extraction of metals from ores | |
DE636773C (en) | Process for the extraction of metals from ores | |
DE401781C (en) | Process for the treatment of ores containing oxidic copper compounds | |
DE397292C (en) | Process for the recovery of metallic zinc in the recovery of copper from alloys containing copper and zinc | |
DE600138C (en) | Process for processing sulphidic copper ores | |
DE595378C (en) | Process for the reduction of sulphides of non-volatile metals | |
DE437891C (en) | Process for separating pyrites containing zinc and iron into their constituent parts | |
DE944434C (en) | Process for the processing of iron ores containing manganese | |
DE661841C (en) | Process for the extraction of metals from ores | |
DE662432C (en) | Items made of chrome steels, which must be resistant to attack at high temperatures | |
DE589448C (en) | Process for the extraction of metals from ores | |
DE698895C (en) | Process for the extraction of lead, zinc, cadmium and other volatile metals from ores, especially iron ores, by volatilization during blow sintering | |
DE720588C (en) | Manufacture of anti-rust pigments from filter dust that is produced when cleaning blast furnace top gas | |
DE313122C (en) | ||
DE635387C (en) | Process for the production of compact magnesium | |
DE580166C (en) | Process for the enrichment of germanium | |
AT130209B (en) | Process for the electrothermal production of metallic magnesium. | |
DE863131C (en) | Process for the production of metallic arsenic | |
DE2438773C3 (en) | Process for processing manganese ores | |
DE241341C (en) | ||
DE73423C (en) | Depiction of rollable and forgeable flufnickel and its alloys | |
DE51892C (en) | Process for the direct extraction of metals from their molten oxygen compounds by means of reducing gas introduced under pressure | |
DE879167C (en) | Process for the extraction of non-ferrous metals, in particular zinc and lead | |
DE535640C (en) | Process for the conversion of poor iron ores by reducing heating into strongly magnetic iron oxide with subsequent magnetic processing | |
DE593153C (en) | Process for the extraction of metals from ores |