JPS5742532A - Treatment of smelting slag containing alkali metal compound - Google Patents

Treatment of smelting slag containing alkali metal compound

Info

Publication number
JPS5742532A
JPS5742532A JP11868180A JP11868180A JPS5742532A JP S5742532 A JPS5742532 A JP S5742532A JP 11868180 A JP11868180 A JP 11868180A JP 11868180 A JP11868180 A JP 11868180A JP S5742532 A JPS5742532 A JP S5742532A
Authority
JP
Japan
Prior art keywords
solution
circulated
tank
ratio
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.)
Pending
Application number
JP11868180A
Other languages
Japanese (ja)
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 JP11868180A priority Critical patent/JPS5742532A/en
Publication of JPS5742532A publication Critical patent/JPS5742532A/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: 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 extract and to recover an alkali metal efficiently, by specifying the pH of the extracted solution in the tank.
CONSTITUTION: A ratio of water in the extraction tank 1, namely, a ratio of circulated 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. A CO2-containing gas is fed to the tank 1 by the vapor-liquid contacting device 2, and the pH of the circulated solution is adjusted to 10.5W11.5. Consequently, the solubility of Na2O in the circulated solution is raised and the elution of SiO2 is prevented. When the pH of the circulated solution is < the lower limit, the solubility of Na2O is reduced, and when > the upper limit, the amount of the elution of SiO2 becomes too much, and the filtering characteristics of the insoluble residue is deteriorated.
COPYRIGHT: (C)1982,JPO&Japio
JP11868180A 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound Pending JPS5742532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11868180A JPS5742532A (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
JP11868180A JPS5742532A (en) 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound

Publications (1)

Publication Number Publication Date
JPS5742532A true JPS5742532A (en) 1982-03-10

Family

ID=14742561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11868180A Pending JPS5742532A (en) 1980-08-28 1980-08-28 Treatment of smelting slag containing alkali metal compound

Country Status (1)

Country Link
JP (1) JPS5742532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9631256B2 (en) 2012-07-05 2017-04-25 Aisin Seiki Kabushiki Kaisha Alkali metal and/or alkali earth metal extraction method
US10113214B2 (en) 2012-07-05 2018-10-30 Aisin Seiki Kabushiki Kaisha Alkali metal and/or alkali earth metal extraction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100999A (en) * 1978-01-26 1979-08-09 Tokuyama Soda Co Ltd Treatment of waste slag
JPS5589409A (en) * 1978-12-27 1980-07-07 Tokuyama Soda Co Ltd Treating method of waste slag
JPS55118680A (en) * 1979-03-02 1980-09-11 Motorola Inc Electrically plating method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100999A (en) * 1978-01-26 1979-08-09 Tokuyama Soda Co Ltd Treatment of waste slag
JPS5589409A (en) * 1978-12-27 1980-07-07 Tokuyama Soda Co Ltd Treating method of waste slag
JPS55118680A (en) * 1979-03-02 1980-09-11 Motorola Inc Electrically plating method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9631256B2 (en) 2012-07-05 2017-04-25 Aisin Seiki Kabushiki Kaisha Alkali metal and/or alkali earth metal extraction method
US10113214B2 (en) 2012-07-05 2018-10-30 Aisin Seiki Kabushiki Kaisha Alkali metal and/or alkali earth metal extraction method

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