DE648140C - Process for the preparation of an agent containing copper oxychloride suitable for combating cryptogams - Google Patents

Process for the preparation of an agent containing copper oxychloride suitable for combating cryptogams

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Publication number
DE648140C
DE648140C DEM120966D DEM0120966D DE648140C DE 648140 C DE648140 C DE 648140C DE M120966 D DEM120966 D DE M120966D DE M0120966 D DEM0120966 D DE M0120966D DE 648140 C DE648140 C DE 648140C
Authority
DE
Germany
Prior art keywords
copper
cryptogams
combating
preparation
copper oxychloride
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
DEM120966D
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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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Application granted granted Critical
Publication of DE648140C publication Critical patent/DE648140C/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/16Heavy metals; Compounds thereof
    • A01N59/20Copper
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00Compounds of copper
    • C01G3/04Halides
    • C01G3/06Oxychlorides

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Fodder In General (AREA)

Description

Verfahren zur Herstellung eines zur Bekämpfung von Kryptogamen geeigneten, " Kupferoxychlorid enthaltenden Mittels Die aus .der Behandlung kupferhaltiger Mineralien und insbesondere von Kupferldesabbränden mittels chlorierender Röstung herstammenden Laugen enthalten an verschieclene Säurereste gebundenes Kupfer. In der Praxis wird :dieses Kupfer aus den betreffenden Lösungen mittels Abfalleisen gefällt und als staubförmiger, unreiner, sog. Kupferzement erhalten, welcher einen verhältnismäßig niederen Kupfergehalt aufweist. Für die meisten. Verwendungszwecke muß dieses Kupfer einer Raffination unterworfen werden. Dies ist der Fall bei der Herstellung von zur Bekämpfung der Kryptogamen geeigneten Kupfersalzen, z. B. von Kupfersulfat, wo die Notwendigkeit, sehr reine Pradulite zu erhalten,, @dabii führt, @daß man dem unmittelbar-en Angriff der Zemente durch .die Säuren die Behandlung der Kupfergranalienoder durch die Zementraffination im Ofen erhaltenen Kugeln vorzieht. Das den Gegenstand der Erfindung bildende Verfahren gestattet, von den @obengenannten Laugen ausgehend, auf sehr viel einfachere und billigere Art zu einem Mittel. von holher antikryptogami;-scher Wirkung zu gelangen, das ebenfallg frei von Verunreinigungen ist. Die Arbeitsweise gemäß .der Erfindung besteht grundsätzlich darin, daß man das Kupfer aus den Laugen zuerst in bekannter Weise mit Schwefeldioxyd als Cuprochlorid ausfällt, das erhaltene Cuprochlorid hierauf suspendiert und mit Kalkmilch unter gleichzeitigem Einblasen von Luft zur Reaktion bringt. Es fällt ,dann basisches Kupferchlorid, Kupferoxychlorid, in Mischung mit Calciumchlorid aus.Process for the production of a suitable for combating cryptogams, "Agent containing copper oxychloride. The treatment of copper-containing minerals and in particular from copper de-burns by means of chlorinating roasting Caustic solutions contain copper bound to various acid residues. In practice it will : this copper is precipitated from the solutions concerned using a waste iron and as powdery, impure, so-called copper cement received, which is relatively has a low copper content. For the most. Uses must be this copper be subjected to refining. This is the case with the manufacture of copper salts suitable for combating cryptogams, e.g. B. of copper sulfate, where the need to obtain very pure Pradulite ,, @dabii leads @ that one the immediate attack of the cements by the acids, the treatment of the copper granules or prefers balls obtained from cement refining in the kiln. That the subject The method forming the invention allows, starting from the @above-mentioned alkalis, in a much simpler and cheaper way to a means. by holher antikryptogami; -scher To get effect, which is also free of impurities. The way of working According to the invention basically consists in the fact that the copper is removed from the lyes first precipitates in a known manner with sulfur dioxide as cuprous chloride, the obtained Cuprous chloride then suspended and with lime milk while blowing in at the same time reacts with air. It falls, then basic copper chloride, copper oxychloride, in a mixture with calcium chloride.

Die von der Auslaugung der der chlorierenden Röstung unterworfenen Mineralien herstammenden Endlösungen werden mit dem Schwefeldioxyd gesättigt, das in den mit den üblichen Mitteln gewonnenen Schwefelgasen enthalten ist, entweder in zweckmäßig angeondneten Küpenoder in Türmen, welche ge-,eignet sind, Gase und Flüssigkeiten miteinander in Berührung zu bringen oder auch gleichzeitig oder hintereinander in beiden Vorrichtungsarben. Hierbei fallen ungefähr drei Viertel des in den Laugen enthaltenen Kupfers als reines Cuprochlorid aus, welches kristallinisch ist und sich leicht ausscheiden läßt. Das in den Flüssigkeiten gelöst gebliebene Schwefeldioxyd wird mittels eines Gasstromes entfernt und durch Lösen in frisehen, der Behandlung zu unterwerfenden Lösungen tviedergewonn en.Those from leaching that are subjected to chlorinating roasting Final solutions derived from minerals are saturated with the sulfur dioxide that is contained in the sulfur gases obtained with the usual means, either in suitably connected vats or in towers that are suitable, gases and Bringing liquids into contact with one another or simultaneously or one after the other in both device colors. About three quarters of it falls into the lye contained copper as pure cuprous chloride, which is crystalline and can be eliminated easily. The sulfur dioxide that has remained dissolved in the liquids is removed by means of a gas stream and dissolved in frisehen, the Treatment recovered solutions to be submitted.

Das so erhaltene Cuprochlorid wird s-adänn in der von einer vorhergehenden Behandlung.. herstammenden Flüssigkeit suspendiert und die mit dem erforderlichen Wasser versetzte Suspension bei gleichzeitigem Rühren Lufteingeblasen, während Kalkmilch im gewünschten Verhältnis beigegeben wird. Es fällt so ein Kupferoxychlorid enthaltendes Gemisch aus; dieses wird filtriert, gewaschen, bei mäßiger Temperatur zwecks Vermeidung des Schwarz- erdens getrocknet und gepulvert.The cuprous chloride thus obtained is s-adänn in that of a preceding one Treatment .. suspended fluid derived and provided with the required Water was added to the suspension while stirring, while air was blown in, while milk of lime is added in the desired ratio. It precipitates containing copper oxychloride Mixture of; this is filtered, washed, at a moderate temperature in order to avoid it of the black earth dried and powdered.

Das so erhaltene antikryptogamische Mittel ist von schon bekannter Art. Bisher wurde es jedoch hergestellt, üidem man eine Lösung von Cuprichlorid, welche aus sehr reinem Kupfer gewonnen werden mußte, mit Kalkmilch behandelte. Der Vorteil des neuen Verfahrens besteht darin, daß man, ausgehend von einem kupferhaltigen Ausgangsmaterial von geringem Wert, in einfacher und billiger Weise ebenfalls ein antikryptogam wirkendes Produkt erhält..The anticryptogamic remedy obtained in this way is already well known Art. So far, however, it has been produced by using a solution of cuprichloride, which had to be obtained from very pure copper, treated with milk of lime. Of the The advantage of the new process is that, starting from a copper-containing Raw material of little value, in a simple and cheap way, too anti-cryptogam product receives ..

Claims (1)

PATENT AN SPRUCH Verfahren zur Herstellung eines zur Bekämpfung von Kryptogamen geeigneten, Kupferoxychlorid enthaltenden Mittels aus den aus der Auslaugung kupferhaltiger und einer chlorierenden Röstung unterworfener Mineralien erhaltenen Lösungen, dadurch gekennzeichnet, daß man aus diesen J-ösungen das Kupfer in an sich bekannter Weise mittels Schwefeldioxyds als Cuprochlorid ausfällt und dieses Cuprochlorid in suspendierter Form unter gleichzeitigem Hinzufügen von Kalkmilch einem Luftstrom aussetzt. PATENT TO APPLICATION Process for the preparation of a copper oxychloride-containing agent suitable for combating cryptogams from the solutions obtained from the leaching of copper-containing minerals which have been subjected to chlorinating roasting, characterized in that the copper is obtained from these J solutions in a manner known per se by means of sulfur dioxide precipitates as cuprous chloride and this cuprous chloride is exposed to a stream of air in suspended form with the simultaneous addition of milk of lime.
DEM120966D 1931-10-08 1932-09-06 Process for the preparation of an agent containing copper oxychloride suitable for combating cryptogams Expired DE648140C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT648140X 1931-10-08

Publications (1)

Publication Number Publication Date
DE648140C true DE648140C (en) 1937-07-23

Family

ID=11297281

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM120966D Expired DE648140C (en) 1931-10-08 1932-09-06 Process for the preparation of an agent containing copper oxychloride suitable for combating cryptogams

Country Status (1)

Country Link
DE (1) DE648140C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128149A (en) * 1958-06-30 1964-04-07 Wacker Chemie Gmbh Process for producing calcium tetracuproxy chloride

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128149A (en) * 1958-06-30 1964-04-07 Wacker Chemie Gmbh Process for producing calcium tetracuproxy chloride

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