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JPS5626725A - Manufacture of manganese sulfate - Google Patents

Manufacture of manganese sulfate

Info

Publication number
JPS5626725A
JPS5626725A JP10053179A JP10053179A JPS5626725A JP S5626725 A JPS5626725 A JP S5626725A JP 10053179 A JP10053179 A JP 10053179A JP 10053179 A JP10053179 A JP 10053179A JP S5626725 A JPS5626725 A JP S5626725A
Authority
JP
Japan
Prior art keywords
mnso
soln
iron
slag
concd
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
JP10053179A
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 JP10053179A priority Critical patent/JPS5626725A/en
Publication of JPS5626725A publication Critical patent/JPS5626725A/en
Pending legal-status Critical Current

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  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To manufacture MnSO4 of superior quality by neutralizing a soln. of ferromanganese slag in sulfuric acid to remove impurities, concentrating the resulting 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. The filtrate is concd. just until MnSO4 crystals begin to deposit, and CaSO4 deposited is removed by filtration. The filtrate is further concd. to crystallize MnSO4, and this MnSO4 is centrifugally separated and washed. The washing water is discharged from the system. Thus, MnSO4 crystals are obtd.
COPYRIGHT: (C)1981,JPO&Japio
JP10053179A 1979-08-07 1979-08-07 Manufacture of manganese sulfate Pending JPS5626725A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10053179A JPS5626725A (en) 1979-08-07 1979-08-07 Manufacture of manganese sulfate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10053179A JPS5626725A (en) 1979-08-07 1979-08-07 Manufacture of manganese sulfate

Publications (1)

Publication Number Publication Date
JPS5626725A true JPS5626725A (en) 1981-03-14

Family

ID=14276536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10053179A Pending JPS5626725A (en) 1979-08-07 1979-08-07 Manufacture of manganese sulfate

Country Status (1)

Country Link
JP (1) JPS5626725A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692065A (en) * 1984-04-23 1987-09-08 Takenaka Komuten Co., Ltd. Offshore unit structure
US4693637A (en) * 1984-12-20 1987-09-15 Takenaka Komuten Co., Ltd. Gravity type oceanic structure and its stable installation
CN1325669C (en) * 2006-03-03 2007-07-11 郝鹏飞 Method for removing heavy-metal ions from manganese sulfate solution
WO2013165148A1 (en) * 2012-04-30 2013-11-07 전남대학교산학협력단 Method for producing high-purity trimanganese tetraoxide and high-purity trimanganese tetraoxide produced by the method
WO2013165071A1 (en) * 2012-04-30 2013-11-07 전남대학교산학협력단 Method for producing high-purity manganese sulfate monohydrate and high-purity manganese sulfate monohydrate produced by the method
CN107055622A (en) * 2017-06-12 2017-08-18 广州市三珍商贸有限公司 High temperature crystallization method prepares the technique and automatic continuous process units of manganese sulfate

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4692065A (en) * 1984-04-23 1987-09-08 Takenaka Komuten Co., Ltd. Offshore unit structure
US4693637A (en) * 1984-12-20 1987-09-15 Takenaka Komuten Co., Ltd. Gravity type oceanic structure and its stable installation
CN1325669C (en) * 2006-03-03 2007-07-11 郝鹏飞 Method for removing heavy-metal ions from manganese sulfate solution
WO2013165148A1 (en) * 2012-04-30 2013-11-07 전남대학교산학협력단 Method for producing high-purity trimanganese tetraoxide and high-purity trimanganese tetraoxide produced by the method
WO2013165071A1 (en) * 2012-04-30 2013-11-07 전남대학교산학협력단 Method for producing high-purity manganese sulfate monohydrate and high-purity manganese sulfate monohydrate produced by the method
KR101348138B1 (en) * 2012-04-30 2014-01-08 주식회사 동부메탈 Method for producing high purity manganese sulphate monohydrate and high purity manganese sulphate monohydrate produced thereby
KR101424075B1 (en) * 2012-04-30 2014-07-28 전남대학교산학협력단 Method for recovering manganese compounds and high purity manganese compounds recovered thereby
US9365912B2 (en) 2012-04-30 2016-06-14 Industry Foundation Of Chonnam National University Method for producing high-purity manganese sulfate monohydrate and high-purity manganese sulfate monohydrate produced by the method
US9663384B2 (en) 2012-04-30 2017-05-30 Industry Foundation Of Chonnam National University Method for producing high-purity trimanganese tetraoxide and high-purity trimanganese tetraoxide produced by the method
CN107055622A (en) * 2017-06-12 2017-08-18 广州市三珍商贸有限公司 High temperature crystallization method prepares the technique and automatic continuous process units of manganese sulfate

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