ES459291A1 - Residues obtd. in winning zinc from roasted blend - treated by steam and pressure to convert insol. zinc to soluble sulphate - Google Patents

Residues obtd. in winning zinc from roasted blend - treated by steam and pressure to convert insol. zinc to soluble sulphate

Info

Publication number
ES459291A1
ES459291A1 ES459291A ES459291A ES459291A1 ES 459291 A1 ES459291 A1 ES 459291A1 ES 459291 A ES459291 A ES 459291A ES 459291 A ES459291 A ES 459291A ES 459291 A1 ES459291 A1 ES 459291A1
Authority
ES
Spain
Prior art keywords
zinc
obtd
residues
winning
treated
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
ES459291A
Other languages
Spanish (es)
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.)
Preussag AG Metall
Original Assignee
Preussag AG Metall
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 Preussag AG Metall filed Critical Preussag AG Metall
Publication of ES459291A1 publication Critical patent/ES459291A1/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
    • C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
    • 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
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • 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

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)
  • Electrolytic Production Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

A mixed prod., consisting of residues obtd. by leaching roasted blend with sulphuric acid, and the prod. obtd. by pptg. iron during purificn. of the leach, is digested with water under pressure. The novelty is that the mixed prod. is treated with water at 250-400 degrees C in a pressure vessel and cooled, followed by sepn. into a liq. and a residue the liq. contains virtually all the sulphate present in the residue, as soluble Zn-, Cu- and Cd-sulphates, free H2SO4, and all the ammonium sulphate and the liq. is returned to the zone winning process. The sulphides of Cu and Cd are pref. partially oxidised during the process, esp. by adding MnO2. The process is used in the electrolytic winning of Zn from Zn ores which are first roasted to form oxide and then leached. Improved recovery of Zn and other metals from process residues.
ES459291A 1976-06-09 1977-05-30 Residues obtd. in winning zinc from roasted blend - treated by steam and pressure to convert insol. zinc to soluble sulphate Expired ES459291A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2625771A DE2625771C2 (en) 1976-06-09 1976-06-09 Process for the processing of iron-containing residues from the roasting blend leaching by pressure digestion with water

Publications (1)

Publication Number Publication Date
ES459291A1 true ES459291A1 (en) 1978-03-16

Family

ID=5980131

Family Applications (1)

Application Number Title Priority Date Filing Date
ES459291A Expired ES459291A1 (en) 1976-06-09 1977-05-30 Residues obtd. in winning zinc from roasted blend - treated by steam and pressure to convert insol. zinc to soluble sulphate

Country Status (8)

Country Link
BE (1) BE855541A (en)
DE (1) DE2625771C2 (en)
ES (1) ES459291A1 (en)
FI (1) FI771648A (en)
FR (1) FR2354387A1 (en)
IT (1) IT1078287B (en)
NL (1) NL7706077A (en)
NO (1) NO771811L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX157259A (en) * 1980-09-30 1988-11-09 Outokumpu Oy IMPROVED HYDROMETALLURGICAL METHOD FOR TREATING A RAW MATERIAL CONTAINING OXIDE AND FERRITE OF ZINC, COPPER AND CADMIUM
CN114769282B (en) * 2022-04-07 2023-10-27 楚雄滇中有色金属有限责任公司 Harmless treatment method for copper smelting waste acid arsenic precipitation slag

Also Published As

Publication number Publication date
IT1078287B (en) 1985-05-08
DE2625771B1 (en) 1977-08-25
FR2354387A1 (en) 1978-01-06
FI771648A (en) 1977-12-10
DE2625771C2 (en) 1978-04-20
NO771811L (en) 1977-12-12
BE855541A (en) 1977-10-03
NL7706077A (en) 1977-12-13
FR2354387B1 (en) 1981-02-27

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