GB1405038A - Process for the continuous preparation of aqueous manganous sulphate solution for use in the production of electrolytic manganese dioxide - Google Patents
Process for the continuous preparation of aqueous manganous sulphate solution for use in the production of electrolytic manganese dioxideInfo
- Publication number
- GB1405038A GB1405038A GB3564573A GB3564573A GB1405038A GB 1405038 A GB1405038 A GB 1405038A GB 3564573 A GB3564573 A GB 3564573A GB 3564573 A GB3564573 A GB 3564573A GB 1405038 A GB1405038 A GB 1405038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- leaching
- sulphuric acid
- vessel
- effluent
- aqueous
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/21—Manganese oxides
Abstract
1405038 Preparation of manganous sulphate solution MITSUI MINING & SMELTING CO Ltd 26 July 1973 35645/73 Heading C1A [Also in Division B1] A process for the continuous preparation of an aqueous manganous sulphate solution comprises leaching in a core-type leaching vessel powdered manganese carbonate ore or powdered reducing roast of manganese oxide ore with an aqueous sulphuric acid solution containing an excess of sulphuric acid in the presence of manganese dioxide and optionally a soluble ferrous salt in an amount of 1-3 g./l., calculated as Fe and based on the aqueous sulphuric acid solution, while circulating a part of the contents of the vessel from the bottom to the top within the vessel, transferring the overflowing effluent to one or a series of two or more subsequent leaching vessels, continuing further the leaching, introducing successively the effluent from the last leaching vessel into one or a series of two or more neutralizing vessels, neutralizing the effluent with a neutralizing agent to maintain a pH value of effluent at 5-6, allowing the neutralization to terminate and filtering the effluent from the last neutralization vessel. It is preferred to carry out the leaching using an ore to sulphuric acid ratio of 1 : 6-9 wt./vol., a spent electrolyte containing sulphuric acid from the electrolysis process for the production of manganese dioxide in place of sulphuric acid, a leaching temperature of 75-85‹ C. and calcium carbonate is a suitable neutralizing agent. The use of a core-type leaching vessel ensures a prolonged extraction time and minimized foaming problems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3564573A GB1405038A (en) | 1973-07-26 | 1973-07-26 | Process for the continuous preparation of aqueous manganous sulphate solution for use in the production of electrolytic manganese dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3564573A GB1405038A (en) | 1973-07-26 | 1973-07-26 | Process for the continuous preparation of aqueous manganous sulphate solution for use in the production of electrolytic manganese dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1405038A true GB1405038A (en) | 1975-09-03 |
Family
ID=10380028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3564573A Expired GB1405038A (en) | 1973-07-26 | 1973-07-26 | Process for the continuous preparation of aqueous manganous sulphate solution for use in the production of electrolytic manganese dioxide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1405038A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285913A (en) * | 1980-04-25 | 1981-08-25 | Union Carbide Corporation | Process of making manganous sulphate solution with low level impurity of potassium for manufacture of electrolytic manganese dioxide |
| CN100411997C (en) * | 2005-02-01 | 2008-08-20 | 桂林市孟泰矿产技术开发有限责任公司 | Method of recovering manganese sulfate from low-grade manganese carbonate and manganese oxide |
| CN102181627A (en) * | 2011-04-28 | 2011-09-14 | 昆明理工大学 | Method for treating primary low-grade high-phosphorus manganese ore by acid blending curing |
| CN104762466A (en) * | 2015-04-17 | 2015-07-08 | 北京矿冶研究总院 | Liquid preparation method for producing electrolytic manganese or manganese dioxide from low-grade manganese oxide ore |
| CN113088998A (en) * | 2021-03-31 | 2021-07-09 | 广西桂柳化工有限责任公司 | Preparation method of electrolytic manganese dioxide for producing lithium manganate material |
-
1973
- 1973-07-26 GB GB3564573A patent/GB1405038A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285913A (en) * | 1980-04-25 | 1981-08-25 | Union Carbide Corporation | Process of making manganous sulphate solution with low level impurity of potassium for manufacture of electrolytic manganese dioxide |
| CN100411997C (en) * | 2005-02-01 | 2008-08-20 | 桂林市孟泰矿产技术开发有限责任公司 | Method of recovering manganese sulfate from low-grade manganese carbonate and manganese oxide |
| CN102181627A (en) * | 2011-04-28 | 2011-09-14 | 昆明理工大学 | Method for treating primary low-grade high-phosphorus manganese ore by acid blending curing |
| CN102181627B (en) * | 2011-04-28 | 2012-10-31 | 昆明理工大学 | Method for treating primary low-grade high-phosphorus manganese ore by acid blending curing |
| CN104762466A (en) * | 2015-04-17 | 2015-07-08 | 北京矿冶研究总院 | Liquid preparation method for producing electrolytic manganese or manganese dioxide from low-grade manganese oxide ore |
| CN104762466B (en) * | 2015-04-17 | 2017-01-11 | 北京矿冶研究总院 | Liquid preparation method for producing electrolytic manganese or manganese dioxide from low-grade manganese oxide ore |
| CN113088998A (en) * | 2021-03-31 | 2021-07-09 | 广西桂柳化工有限责任公司 | Preparation method of electrolytic manganese dioxide for producing lithium manganate material |
| CN113088998B (en) * | 2021-03-31 | 2022-08-19 | 广西桂柳新材料股份有限公司 | Preparation method of electrolytic manganese dioxide for producing lithium manganate material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |