DE425363C - Process for leaching oxide ores and other metallurgical products - Google Patents

Process for leaching oxide ores and other metallurgical products

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Publication number
DE425363C
DE425363C DES63905D DES0063905D DE425363C DE 425363 C DE425363 C DE 425363C DE S63905 D DES63905 D DE S63905D DE S0063905 D DES0063905 D DE S0063905D DE 425363 C DE425363 C DE 425363C
Authority
DE
Germany
Prior art keywords
leaching
ores
metallurgical products
oxide ores
metallurgical
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
DES63905D
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.)
METALLURG CHILENA CUPRUM FA SO
Original Assignee
METALLURG CHILENA CUPRUM FA SO
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 METALLURG CHILENA CUPRUM FA SO filed Critical METALLURG CHILENA CUPRUM FA SO
Priority to DES63905D priority Critical patent/DE425363C/en
Application granted granted Critical
Publication of DE425363C publication Critical patent/DE425363C/en
Expired legal-status Critical Current

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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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Description

Verfahren zum Auslaugen oxydischer Erze und sonstiger metallurgischer Produkte. Die Gewinnung von Metallen aus Erzen oder sonstigen metallurgischen Produkten durch oxydierende Röstung und darauffolgende Auslaugung ist bekannt. Es hat sich nun herausgestellt, daß die Gewinnung von Metallen beim Auslaugen von Erzen, beispielsweise von Kupferstein, ergiebiger wird, wenn man dem Laugungsmittel, d. h. beispielsweise der Kochsalzlösung, Salpeter oder sonstige Stickstoffverbindungen oder andere Nitrate und auch Schwefelsäure in ganz geringen Mengen beifügt.Process for leaching oxidic ores and other metallurgical ores Products. The extraction of metals from ores or other metallurgical products by oxidizing roasting and subsequent leaching is known. It has now found that the extraction of metals by leaching ores, for example of copper stone, becomes more productive if the leaching agent, i.e. H. for example the saline solution, saltpetre or other nitrogen compounds or other nitrates and also adds sulfuric acid in very small quantities.

An Stelle der Schwefelsäure können auch deren Salze, und zwar auch in sehr geringen Mengen, dem Laugungsmittel zugesetzt werden.Instead of sulfuric acid, its salts can also be used, and indeed also in very small quantities, the leaching agent can be added.

Die Erze oder sonstigen metallurgischen Produkte können im oxydischen Zustande ohne weitere Vorbehandlung dieser Laugung durch Kochsalz mit den angegebenen geringen Zusätzen unterworfen werden. Sulfidische Erze usw. müssen erst einer Röstung unter Zugabe von Oxydationsmitteln, wie Salpeter u. dgl., unterworfen werden, bevor sie zur Auslaugung gelangen.The ores or other metallurgical products can be in the oxidic Conditioned without further pretreatment of this leaching with table salt with the specified be subjected to minor additives. Sulphidic ores etc. must first be roasted with the addition of oxidizing agents such as saltpeter and the like they reach leaching.

Wesentlich für die gute Durchführung des Verfahrens ist das Vorhandensein der Metalle im oxydischen Zustande, unabhängig von der vorhergehenden Verarbeitung.It is essential for the process to be carried out properly that it is available of metals in the oxidic state, regardless of the previous processing.

Bei der Behandlung von reichem silberhaltigen Kupferstein, der einer oxydi°renden Röstung unterworfen worden war, setzte man dem Laugungsmittel, der konzentrierten Salzlösung, o,o6 Prozent Salpetersäure und o, i Prozent Schwefelsäure hinzu. Das gesamte im Kupferstein enthaltene Kupfer und Silber konnte dadurch bis auf 96 Prozent ausgelaugt werden.When treating rich silver-bearing copper stone, the one had been subjected to oxidizing roasting, the leaching agent was added concentrated salt solution, 0.06 percent nitric acid and 0.1 percent sulfuric acid added. All of the copper and silver contained in the copper stone could thus be up to be leached to 96 percent.

Bei der Laugung der Oxyde mit konzentrierter Iiozhsalzlösung hat es sich herausgestellt, daß man in vielen Fällen, namentlich da, wo die oxydischen Verbindungen in zu konzentrierten Anhäufungen im Erze vorhanden sind, die schädlichen Wirkungen dieser Oxydanhäufungen durch ein indifferentes Mittel beseitigen muß.When the oxides are leached with concentrated salt solution, it has it turned out that in many cases, especially where the oxidic Compounds are present in too concentrated accumulations in the ore that are harmful Must remove the effects of these oxide accumulations by an indifferent means.

Bei der Bearbeitung permanischer Erze mit einem Bleigehalt von etwa 3 5 Pr ozent bildete sich bei der Laugung Scheelsches Gelb, welches in Kochsalz unlöslich ist. Es war natürlich nicht möglich, daß das Laugungsmittel im erforderlichen überschuß auf die Erzteile, insbesondere das Bleioxyd, einwirken konnte. Durch Vermischen der Erze mit einem billigen und unangreifbaren Stoff, wie Quarzsand, wurde erst die vollständige Auslaugung auf etwa 96 Prozent möglich.When processing permanent ores with a lead content of around 3 5 percent of Scheel's yellow was formed during leaching, which in table salt is insoluble. It was of course not possible to use the leaching agent as required Excess could act on the ore parts, especially the lead oxide. By mixing the ore with a cheap and invulnerable substance such as quartz sand was only used complete leaching to about 96 percent is possible.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Auslaugen oxydischer Erze oder sonstiger metallurgischer Produkte, dadurch gekennzeichnet, daß zu dem aus Chlorsalzlösung bestehenden Laugungsmittel ganz geringe Mengen eines Salzes, wie Salpeter oder andere Nitrate oder sonstige Stickstoffverbindungen, und auch geringe Mengen einer Säure, wie Schwefelsäure oder deren Salze, hinzugefügt werden. z. Verfahren nach Anspruch i, dadurch gekennzeichnet, da.ß die Erze oder sottsägen metallurgischen Produkte, welche Metalloxyde in sehr konzentrierter Form enthalten, vor der Laugung mit indifferenten Mitteln, wie z. $. mit Quarzsand, vermischt werden. PATENT CLAIMS: i. Process for leaching oxidic ores or other metallurgical products, characterized in that very small amounts of a salt, such as nitric or other nitrates or other nitrogen compounds, and also small amounts of an acid, such as sulfuric acid or its salts, are added to the leaching agent consisting of chlorine salt solution . z. The method according to claim i, characterized in that the ores or sottsäge metallurgical products which contain metal oxides in very concentrated form, before leaching with inert agents, such as. $. with quartz sand.
DES63905D 1923-09-27 1923-09-27 Process for leaching oxide ores and other metallurgical products Expired DE425363C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES63905D DE425363C (en) 1923-09-27 1923-09-27 Process for leaching oxide ores and other metallurgical products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES63905D DE425363C (en) 1923-09-27 1923-09-27 Process for leaching oxide ores and other metallurgical products

Publications (1)

Publication Number Publication Date
DE425363C true DE425363C (en) 1926-02-16

Family

ID=7496726

Family Applications (1)

Application Number Title Priority Date Filing Date
DES63905D Expired DE425363C (en) 1923-09-27 1923-09-27 Process for leaching oxide ores and other metallurgical products

Country Status (1)

Country Link
DE (1) DE425363C (en)

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