JPS5626722A - Manufacture of manganese chloride - Google Patents
Manufacture of manganese chlorideInfo
- Publication number
- JPS5626722A JPS5626722A JP10053379A JP10053379A JPS5626722A JP S5626722 A JPS5626722 A JP S5626722A JP 10053379 A JP10053379 A JP 10053379A JP 10053379 A JP10053379 A JP 10053379A JP S5626722 A JPS5626722 A JP S5626722A
- Authority
- JP
- Japan
- Prior art keywords
- mnso
- mnco
- soln
- concd
- mncl
- 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
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To manufacture MnCl2 of superior quality by neutralizing and concentrating a soln. of ferromanganese slag in sulfuric acid to remove impurities, converting the resulting MnSO4 into MnCO3, and dissolving this MnCO3 in hydrochloric acid to deposit MnCl2.
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 begins to crystallize, and CaSO4 deposited in 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 dissolved in water, and by adding an aqueous (hydrogen)carbonate soln., MnCO3 is deposited. This MnCO3 is centrifugally separated, washed, and dissolved in hydrochloric acid, and then the soln. is concd. to crystallize MnCl2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10053379A JPS5626722A (en) | 1979-08-07 | 1979-08-07 | Manufacture of manganese chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10053379A JPS5626722A (en) | 1979-08-07 | 1979-08-07 | Manufacture of manganese chloride |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5626722A true JPS5626722A (en) | 1981-03-14 |
Family
ID=14276590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10053379A Pending JPS5626722A (en) | 1979-08-07 | 1979-08-07 | Manufacture of manganese chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5626722A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61163004A (en) * | 1985-01-11 | 1986-07-23 | Bridgestone Corp | Pneumatic tire giving good ride |
US5155476A (en) * | 1990-09-21 | 1992-10-13 | Sharp Kabushiki Kaisha | Liquid crystal display device |
CN104961160A (en) * | 2015-06-26 | 2015-10-07 | 重庆新申锶盐有限公司 | Production method for granular anhydrous manganese chloride |
CN108706636A (en) * | 2018-07-15 | 2018-10-26 | 湖北浩元材料科技有限公司 | A kind of manganese chloride production technology |
-
1979
- 1979-08-07 JP JP10053379A patent/JPS5626722A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61163004A (en) * | 1985-01-11 | 1986-07-23 | Bridgestone Corp | Pneumatic tire giving good ride |
US5155476A (en) * | 1990-09-21 | 1992-10-13 | Sharp Kabushiki Kaisha | Liquid crystal display device |
CN104961160A (en) * | 2015-06-26 | 2015-10-07 | 重庆新申锶盐有限公司 | Production method for granular anhydrous manganese chloride |
CN108706636A (en) * | 2018-07-15 | 2018-10-26 | 湖北浩元材料科技有限公司 | A kind of manganese chloride production technology |
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