GB170082A - Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates - Google Patents

Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates

Info

Publication number
GB170082A
GB170082A GB19959/20A GB1995920A GB170082A GB 170082 A GB170082 A GB 170082A GB 19959/20 A GB19959/20 A GB 19959/20A GB 1995920 A GB1995920 A GB 1995920A GB 170082 A GB170082 A GB 170082A
Authority
GB
United Kingdom
Prior art keywords
zinc
sulphate
sodium
chloride
gypseous
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
GB19959/20A
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.)
Metallbank und Metallurgische Gesellschaft AG
Original Assignee
Metallbank und Metallurgische Gesellschaft AG
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 Metallbank und Metallurgische Gesellschaft AG filed Critical Metallbank und Metallurgische Gesellschaft AG
Priority to GB19959/20A priority Critical patent/GB170082A/en
Publication of GB170082A publication Critical patent/GB170082A/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
    • C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
    • 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)

Abstract

Gypseous zinc precipitates resulting from the treatment of zinc liquors containing sulphate, with lime, are freed substantially from their sulphur content by heating and stirring the precipitate suspended in a solution containing zinc chloride and sodium or calcium chloride, and calcining the resulting basic zinc sulphate after washing with water to free it from calcium chloride &c. The zinc chloride should be approximately equivalent to the sulphate present, and may be added from external sources, or may be prepared in situ by means of the sodium or calcium chloride. Alternatively the process may be carried out during the precipitation of the gypseous zinc hydrate. Dilute milk of lime is slowly added to the zinc liquor heated for example to about 70 DEG C., to which has been added sodium or calcium chloride. If the liquor has a high sulphate content it may be reduced prior to the above treatment by adding sodium chloride and crystallizing out the resulting Glauber's salt. High concentration of zinc and of neutral salts such as sodium and calcium chlorides facilitate the formation of the basic sulphate.
GB19959/20A 1920-07-09 1920-07-09 Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates Expired GB170082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19959/20A GB170082A (en) 1920-07-09 1920-07-09 Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19959/20A GB170082A (en) 1920-07-09 1920-07-09 Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates

Publications (1)

Publication Number Publication Date
GB170082A true GB170082A (en) 1921-10-10

Family

ID=10137970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19959/20A Expired GB170082A (en) 1920-07-09 1920-07-09 Process for the production of zinc oxide suitable for metallurgical treatment for gypseous precipitates

Country Status (1)

Country Link
GB (1) GB170082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090271A1 (en) * 1970-05-25 1972-01-14 Electrolyt Zinc Australasia

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2090271A1 (en) * 1970-05-25 1972-01-14 Electrolyt Zinc Australasia

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