JPS5626724A - Manufacture of manganese chloride - Google Patents

Manufacture of manganese chloride

Info

Publication number
JPS5626724A
JPS5626724A JP10053679A JP10053679A JPS5626724A JP S5626724 A JPS5626724 A JP S5626724A JP 10053679 A JP10053679 A JP 10053679A JP 10053679 A JP10053679 A JP 10053679A JP S5626724 A JPS5626724 A JP S5626724A
Authority
JP
Japan
Prior art keywords
soln
mncl
filtrate
iron
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
JP10053679A
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 JP10053679A priority Critical patent/JPS5626724A/en
Publication of JPS5626724A publication Critical patent/JPS5626724A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To manufacture MnCl2 of superior quality by neutralizing a soln. of ferromanganese slag in sulfuric acid to remove impurities, adding CaCl2 to the resulting soln., concentrating the soln. to remove CaSO4 deposited, and further concentrating the soln.
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. To the filtrate is added an aqueous CaCl2 soln. in an amount required to convert MnSO4 and ZnSO4 into chlorides, and the filtrate is concd. just until MnCl2 crystals begin to deposit. After removing CaSO4 deposited by filtration, the filtrate is further concd. to crystallize MnCl2. This MnCl2 is centrifugally separated and washed. The washing liq. is discharged from the system. Thus, MnCl2 crystals are obtd.
COPYRIGHT: (C)1981,JPO&Japio
JP10053679A 1979-08-07 1979-08-07 Manufacture of manganese chloride Pending JPS5626724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10053679A JPS5626724A (en) 1979-08-07 1979-08-07 Manufacture of manganese chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10053679A JPS5626724A (en) 1979-08-07 1979-08-07 Manufacture of manganese chloride

Publications (1)

Publication Number Publication Date
JPS5626724A true JPS5626724A (en) 1981-03-14

Family

ID=14276669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10053679A Pending JPS5626724A (en) 1979-08-07 1979-08-07 Manufacture of manganese chloride

Country Status (1)

Country Link
JP (1) JPS5626724A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310487A (en) * 2014-09-30 2015-01-28 江西西林科股份有限公司 Method for preparing anhydrous manganese chloride under anhydrous reaction conditions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310487A (en) * 2014-09-30 2015-01-28 江西西林科股份有限公司 Method for preparing anhydrous manganese chloride under anhydrous reaction conditions

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