DE350702C - Process for processing zinc ashes or oxides containing chlorine zinc - Google Patents

Process for processing zinc ashes or oxides containing chlorine zinc

Info

Publication number
DE350702C
DE350702C DE1921350702D DE350702DD DE350702C DE 350702 C DE350702 C DE 350702C DE 1921350702 D DE1921350702 D DE 1921350702D DE 350702D D DE350702D D DE 350702DD DE 350702 C DE350702 C DE 350702C
Authority
DE
Germany
Prior art keywords
zinc
ashes
processing
oxides containing
containing chlorine
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
DE1921350702D
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.)
OBERSCHLESISCHE ZINKHUETTEN AK
Original Assignee
OBERSCHLESISCHE ZINKHUETTEN AK
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 OBERSCHLESISCHE ZINKHUETTEN AK filed Critical OBERSCHLESISCHE ZINKHUETTEN AK
Application granted granted Critical
Publication of DE350702C publication Critical patent/DE350702C/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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide

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)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Description

Verfahren zur Verarbeitung von chlorzinkhaltigen Zinkaschen oder -oxyden. Die Reduktion von Zinkasche in den Zinki3fen ist meist mit hohen Verlusten verbunden, die in erster Linie auf den hohen Gehalt der Zinkasche an Chlorzink zurückzuführen sind.Process for processing zinc ashes or oxides containing chlorine zinc. The reduction of zinc ash in the zinc stems is usually associated with high losses, which is primarily due to the high content of zinc chlorine in zinc ash are.

Das Chlorzink der Asche sublimiert bereits beim Laden der Asche in die heißen Muffeln der Üfen, restlos sublimiert dasselbe bei weitersteigender Temperatur im Ofen über. Eine Gewinnung beim normalen Zinkhüttenprozeß ist weder in der Vorlage noch in dem weiter vorgeschalteten Ballon möglich; im Gegenteil, das verflüchtigte Chlorzink trägt zur Verschlechterung des Zinks, soweit solches in der Vorlage kondensiert ist, bei und vermindert vor allein die Qualität des Zinkstaubs. Der Gehalt desselben an metallischem Zink wird bedeutend herabgedrückt und diephysikalische Beschaffenheit des Zinkstaubs durch die Beimengung des teilweise sublimierten Chlorzinks wesentlich verschlechtert.The zinc chlorine in the ashes sublimes when the ashes are loaded in the hot muffles of the Üfen, completely sublimated as the temperature rises in the oven over. A production in the normal zinc smelting process is neither in the template still possible in the balloon upstream; on the contrary, it evaporated Chlorine-zinc contributes to the deterioration of the zinc, insofar as it condenses in the template is, with and primarily reduces the quality of the zinc dust. The salary of the same of metallic zinc is significantly depressed and the physical constitution the zinc dust due to the admixture of the partially sublimed chlorine zinc worsened.

Das neue hier in Frage stehende Verfahren zur Abstellung dieser Übelstände beruht darauf, daß durch Zugabe einer mindestens theoretisch notwendigen Menge von gebranntem Staubkalk unter Zugabe von so viel Wasser, daß die Beschickung eine teigige Konsistenz annimmt, das Chlorzink zersetzt wird unter Bildung von Zinkhydroxyd und Chlorkalzium. Chlorkalzium ist bekanntlich erst bei hoben Temperaturen zersetzbar.The new method in question here to remedy these evils is based on the fact that by adding an at least theoretically necessary amount of burnt dust lime with the addition of so much water that the charge becomes doughy Assumes consistency, the zinc chloride is decomposed with the formation of zinc hydroxide and Calcium chloride. It is well known that calcium chloride is only decomposable at elevated temperatures.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zum Verarbeiten von chlorzinkhaltigen Zinkaschen oder -oxyden oder ähnlichen Materialien, gekennzeichnet durch intensives Vermischen dieser Materialien vor ihrer Reduktion mit gebranntem Staubkalk unter Zugabe von Wasser. a. Ausführung des Verfahrens gemäß Anspruch r, dadurch gekennzeichnet, daß anstatt gebrannten Staubkalks auch gebrannter staubförmiger Dolomit und Wasser zugegeben werden kann. PATENT CLAIMS: r. Process for processing zinc ashes or zinc oxides or similar materials containing zinc, characterized by intensive mixing of these materials prior to their reduction with burnt powdered lime with the addition of water. a. Execution of the method according to claim r, characterized in that, instead of burnt powdered lime, burnt powdered dolomite and water can also be added.
DE1921350702D 1921-04-14 1921-04-14 Process for processing zinc ashes or oxides containing chlorine zinc Expired DE350702C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE350702T 1921-04-14

Publications (1)

Publication Number Publication Date
DE350702C true DE350702C (en) 1922-03-24

Family

ID=6263767

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1921350702D Expired DE350702C (en) 1921-04-14 1921-04-14 Process for processing zinc ashes or oxides containing chlorine zinc

Country Status (1)

Country Link
DE (1) DE350702C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431381A1 (en) * 1983-12-09 1985-06-20 SKF Steel Engineering AB, Hofors METHOD FOR DEGLORING ZINC MATERIALS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431381A1 (en) * 1983-12-09 1985-06-20 SKF Steel Engineering AB, Hofors METHOD FOR DEGLORING ZINC MATERIALS

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