JPS5742530A - Treatment of smelting slag containing alkali metal compound - Google Patents

Treatment of smelting slag containing alkali metal compound

Info

Publication number
JPS5742530A
JPS5742530A JP11867980A JP11867980A JPS5742530A JP S5742530 A JPS5742530 A JP S5742530A JP 11867980 A JP11867980 A JP 11867980A JP 11867980 A JP11867980 A JP 11867980A JP S5742530 A JPS5742530 A JP S5742530A
Authority
JP
Japan
Prior art keywords
solution
ratio
extracted solution
extracted
slag
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.)
Granted
Application number
JP11867980A
Other languages
Japanese (ja)
Other versions
JPS6235966B2 (en
Inventor
Shin Yamashita
Kazuo Tajima
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP11867980A priority Critical patent/JPS5742530A/en
Publication of JPS5742530A publication Critical patent/JPS5742530A/en
Publication of JPS6235966B2 publication Critical patent/JPS6235966B2/ja
Granted 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: In refluxing a supernatant liquid of an extracted solution and/or a filtrate of an insoluble residue to an extraction tank having a small ratio of extracted solution/slag, to improve the yield of recovery of Na2O and to prevent the bad influence on the operations of process, by controlling the specific gravity of the extracted solution.
CONSTITUTION: A ratio of water in the extraction tank 1, namely, a ratio of circulate solution/slag is made small to about 1.5W4, and a supernatant liquid of an extracted solution in the thickener 4 and/or a filtrate of an insoluble residue separation of the separator 5 are partially refluxed to the tank 1. An apparent ratio of a refluxed solution + the circulated solution to slag is made ≥4 so that the extracted solution is stirred smoothly. The relationship between the density, pH, and temperature of the extracted solution, the circulated solution, is obtained, and the density is controlled in a fixed range, so that the concentration of Na2O of the extracted solution is maintained at a constant value. When the set value of the concentration is too much close to the density of a saturated solution, the extraction ratio of Na is lowered and when it is too small, the crystallization ratio of Na is reduced.
COPYRIGHT: (C)1982,JPO&Japio
JP11867980A 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound Granted JPS5742530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11867980A JPS5742530A (en) 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11867980A JPS5742530A (en) 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound

Publications (2)

Publication Number Publication Date
JPS5742530A true JPS5742530A (en) 1982-03-10
JPS6235966B2 JPS6235966B2 (en) 1987-08-05

Family

ID=14742514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11867980A Granted JPS5742530A (en) 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound

Country Status (1)

Country Link
JP (1) JPS5742530A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104498722A (en) * 2014-12-16 2015-04-08 贵州重力科技环保有限公司 Method for comprehensively recovering mercury and selenium from metallurgical slag

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0437133U (en) * 1990-07-27 1992-03-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104498722A (en) * 2014-12-16 2015-04-08 贵州重力科技环保有限公司 Method for comprehensively recovering mercury and selenium from metallurgical slag

Also Published As

Publication number Publication date
JPS6235966B2 (en) 1987-08-05

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