GB1246281A - Recovery of zinc - Google Patents

Recovery of zinc

Info

Publication number
GB1246281A
GB1246281A GB4470/68A GB447068A GB1246281A GB 1246281 A GB1246281 A GB 1246281A GB 4470/68 A GB4470/68 A GB 4470/68A GB 447068 A GB447068 A GB 447068A GB 1246281 A GB1246281 A GB 1246281A
Authority
GB
United Kingdom
Prior art keywords
zinc
carbonate
solution
mixture
aqueous
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
GB4470/68A
Inventor
Leslie Rose
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB4470/68A priority Critical patent/GB1246281A/en
Priority to FR6901811A priority patent/FR2000930A7/fr
Publication of GB1246281A publication Critical patent/GB1246281A/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
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/24—Obtaining zinc otherwise than by distilling with leaching with alkaline solutions, e.g. ammonia
    • 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)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1,246,281. Zinc carbonate; zinc sulphate. COURTAULDS Ltd. 28 Jan., 1969 [29 Jan., 1968], No. 4470/68. Heading C1A. Zinc is recovered from an aqueous solution of a zinc salt by adding the solution to an aqueous solution of an alkal metal carbonate or bicarbonate until the pH of the mixture is in the range 6 to 7 forming a precipitate of granular zinc carbonate and leaving zinc ions in solution, then adding an aqueous alkaline solution to the mixture so as to raise the pH to at least 8 to precipitate as the basic carbonate some of the zinc remaining in solution,-which causes the granular carbonate to flocculate and settle. The preferred alkali metal carbonate is sodium carbonate and the aqueous alkaline solution added may be an aqueous solution of sodium carbonate. Before adding the alkaline solution to the mixture, carbon dioxide may be eliminated from it. The aqueous solution of the zinc salt may be the waste spin bath liquor from a viscose spinning process, in which the weight ratio of zinc to H 2 SO 4 is preferably at least 1 : 3. The comparative examples refer to the production of a basic zinc carbonate 3Zn(OH) a 2.- ZnCO 3 by adding the Na 2 CO 3 to the Zn solution and stirring to remove CO 2 , and a basic zinc sulphate 3Zn(OH) 2 ZnSO 4 by the addition of NaOH to solutions containing zinc sulphate.
GB4470/68A 1968-01-29 1968-01-29 Recovery of zinc Expired GB1246281A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4470/68A GB1246281A (en) 1968-01-29 1968-01-29 Recovery of zinc
FR6901811A FR2000930A7 (en) 1968-01-29 1969-01-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4470/68A GB1246281A (en) 1968-01-29 1968-01-29 Recovery of zinc

Publications (1)

Publication Number Publication Date
GB1246281A true GB1246281A (en) 1971-09-15

Family

ID=9777787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4470/68A Expired GB1246281A (en) 1968-01-29 1968-01-29 Recovery of zinc

Country Status (2)

Country Link
FR (1) FR2000930A7 (en)
GB (1) GB1246281A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816526A (en) * 2021-09-18 2021-12-21 武汉钢铁有限公司 Water quenching water recycling treatment process for cold rolling continuous annealing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113816526A (en) * 2021-09-18 2021-12-21 武汉钢铁有限公司 Water quenching water recycling treatment process for cold rolling continuous annealing unit
CN113816526B (en) * 2021-09-18 2023-02-28 武汉钢铁有限公司 Water quenching water recycling treatment process for cold rolling continuous annealing unit

Also Published As

Publication number Publication date
FR2000930A7 (en) 1969-09-19

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