JPS5751228A - Recovering method for metallic zinc in top dross - Google Patents

Recovering method for metallic zinc in top dross

Info

Publication number
JPS5751228A
JPS5751228A JP12736880A JP12736880A JPS5751228A JP S5751228 A JPS5751228 A JP S5751228A JP 12736880 A JP12736880 A JP 12736880A JP 12736880 A JP12736880 A JP 12736880A JP S5751228 A JPS5751228 A JP S5751228A
Authority
JP
Japan
Prior art keywords
top dross
metallic zinc
metallic
hydrogen chloride
dross
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.)
Pending
Application number
JP12736880A
Other languages
Japanese (ja)
Inventor
Hiroyuki Suzuki
Noriyuki Kimiwada
Iwao Muta
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP12736880A priority Critical patent/JPS5751228A/en
Publication of JPS5751228A publication Critical patent/JPS5751228A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To inhibit the generation of hydrogen chloride and to efficiently recover metallic zinc by adding an acidic salt to a metallic halide as a principal component, adding the resulting flux to top dross, and agitating them.
CONSTITUTION: Top dross 2 rising to the surface of a plating bath 1 is gathered and enclosed by a partition frame 3, or it is scooped up, put in a crucible 4, and melted by heating with a heater 5. An acidic salt such as NaHCO3 is added to a metallic halide such as ZnCl2, and the resulting flux is charged into the top dross 2 and agitated. By this operation the acidic salt is converted into a basic substance by thermal decomposition, and the substance causes a neutralization reaction together with generated hydrogen chloride. By this reaction the generation of hydrogen chloride is inhibited. After the agitation zinc oxide in the dross is separated from metallic zinc and floats as ash, so by removing the ash, metallic zinc can be recovered.
COPYRIGHT: (C)1982,JPO&Japio
JP12736880A 1980-09-13 1980-09-13 Recovering method for metallic zinc in top dross Pending JPS5751228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12736880A JPS5751228A (en) 1980-09-13 1980-09-13 Recovering method for metallic zinc in top dross

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12736880A JPS5751228A (en) 1980-09-13 1980-09-13 Recovering method for metallic zinc in top dross

Publications (1)

Publication Number Publication Date
JPS5751228A true JPS5751228A (en) 1982-03-26

Family

ID=14958233

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12736880A Pending JPS5751228A (en) 1980-09-13 1980-09-13 Recovering method for metallic zinc in top dross

Country Status (1)

Country Link
JP (1) JPS5751228A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100947514B1 (en) 2009-04-06 2010-03-12 (주)풍전비철 The method recovering high purity zinc-oxide from zinc dross
CN103063051A (en) * 2012-12-19 2013-04-24 苏州工业园区姑苏科技有限公司 Cohesive material separation device for discharging outlet of salt bath furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100947514B1 (en) 2009-04-06 2010-03-12 (주)풍전비철 The method recovering high purity zinc-oxide from zinc dross
CN103063051A (en) * 2012-12-19 2013-04-24 苏州工业园区姑苏科技有限公司 Cohesive material separation device for discharging outlet of salt bath furnace

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