JPS5626721A - Manufacture of manganese carbonate - Google Patents

Manufacture of manganese carbonate

Info

Publication number
JPS5626721A
JPS5626721A JP10053279A JP10053279A JPS5626721A JP S5626721 A JPS5626721 A JP S5626721A JP 10053279 A JP10053279 A JP 10053279A JP 10053279 A JP10053279 A JP 10053279A JP S5626721 A JPS5626721 A JP S5626721A
Authority
JP
Japan
Prior art keywords
mnso
mnco
deposit
soln
water
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
JP10053279A
Other languages
Japanese (ja)
Inventor
Satoshi Kado
Koichi Asano
Takashi Watanabe
Takeshi Nakamura
Hidemi Taniguchi
Nobuyuki Taguchi
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 Denko Co Ltd
Nippon Steel Corp
Original Assignee
Nippon Denko Co Ltd
Nippon Steel Corp
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 Nippon Denko Co Ltd, Nippon Steel Corp filed Critical Nippon Denko Co Ltd
Priority to JP10053279A priority Critical patent/JPS5626721A/en
Publication of JPS5626721A publication Critical patent/JPS5626721A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To manufacture MnCO3 of superior quality by neutralizing and concentrating a soln. of ferromanganese slag in sulfuric acid to remove impurities, dissolving the resulting MnSO4 in water, and adding (hydrogen)carbonate to deposit MnCO3.
CONSTITUTION: Sulfuric acid is added to an aqueous slurry of ferromanganese slag finely pulverized to ≤200 mesh to dissolve the slag, and this soln. is adjusted to 6.0W8.5pH with alkali. By blowing air or oxygen-contg. gas, divalent iron is converted into trivalent iron, and the iron and heavy metals are precipitated as hydroxides, which are separated by filtration. The filtrate is concd. just until MnSO4 crystals begin to deposit, and CaSO4 deposited is removed by filtration. The filtrate is further concd. to deposit MnSO4, and this MnSO4 is centrifugally separated and washed. The washing water is discharged from the system. The resulting MnSO4 is then dissolved in water, and by adding an aqueous (hydrogen)carbonate soln., MnCO3 crystals are deposited.
COPYRIGHT: (C)1981,JPO&Japio
JP10053279A 1979-08-07 1979-08-07 Manufacture of manganese carbonate Pending JPS5626721A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10053279A JPS5626721A (en) 1979-08-07 1979-08-07 Manufacture of manganese carbonate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10053279A JPS5626721A (en) 1979-08-07 1979-08-07 Manufacture of manganese carbonate

Publications (1)

Publication Number Publication Date
JPS5626721A true JPS5626721A (en) 1981-03-14

Family

ID=14276562

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10053279A Pending JPS5626721A (en) 1979-08-07 1979-08-07 Manufacture of manganese carbonate

Country Status (1)

Country Link
JP (1) JPS5626721A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645828A (en) * 1979-09-18 1981-04-25 Chuo Denki Kogyo Kk Manufacture of high purity manganese carbonate
JPH06136708A (en) * 1992-10-21 1994-05-17 Railway Technical Res Inst Crossing paving plate
JP2011016668A (en) * 2009-07-07 2011-01-27 Jx Nippon Mining & Metals Corp Method for producing manganese carbonate
CN105417584A (en) * 2015-12-09 2016-03-23 西南科技大学 Method for recycling manganese from electrolyzed manganese ore residues

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645828A (en) * 1979-09-18 1981-04-25 Chuo Denki Kogyo Kk Manufacture of high purity manganese carbonate
JPS6245171B2 (en) * 1979-09-18 1987-09-25 Chuo Denki Kogyo Co
JPH06136708A (en) * 1992-10-21 1994-05-17 Railway Technical Res Inst Crossing paving plate
JP2011016668A (en) * 2009-07-07 2011-01-27 Jx Nippon Mining & Metals Corp Method for producing manganese carbonate
CN105417584A (en) * 2015-12-09 2016-03-23 西南科技大学 Method for recycling manganese from electrolyzed manganese ore residues

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