CN101070213B - Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate - Google Patents
Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate Download PDFInfo
- Publication number
- CN101070213B CN101070213B CN2007100524878A CN200710052487A CN101070213B CN 101070213 B CN101070213 B CN 101070213B CN 2007100524878 A CN2007100524878 A CN 2007100524878A CN 200710052487 A CN200710052487 A CN 200710052487A CN 101070213 B CN101070213 B CN 101070213B
- Authority
- CN
- China
- Prior art keywords
- manganese
- neutralizing
- filtrate
- filter residue
- lime
- 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.)
- Active
Links
Images
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
This invention relates to a method of quadric neutralizing manganese sulfate used liquid to advance manganic utilization ratio. Input manganese sulfate used liquid generated by oxidizing aniline using pyrolusite to neutralizing tank, add lime to neutralize PH to 3-4, filtration, take filtrate, filter residue is disposed by moving out; add lime to filtrate to neutralize PH to 3-7, filtration, add overdosage ammonium bicarbonate to filtrate to prepare manganese carbonate, filter residue return to neutralizing tank to participate forthcoming neutralization. This invention adopts quadric neutralizing manganese sulfate used liquid, first order dregs moving out, second dreg returning to neutralizing tank as neutralizer, can advance manganic utilization ratio 3 to 5%, possess notable economic benefit.
Description
Technical field
The present invention relates to a kind of treatment process that adopts the manganous sulfate waste liquid that pyrolusite does and produce in the oxidant production manganous sulfate technology, particularly a kind of secondary neutralisation of sulphuric acid manganese waste liquid improves the method for the utilization ratio of manganese.
Background material
Do in the oxidant production manganous sulfate technology at the employing pyrolusite, the manganous sulfate waste liquid that produces through vitriolization manganese ore powder is than strongly-acid, need through alkaline matter neutralizing treatment such as lime, its pH value is reached more than 5, to remove wherein most of impurity such as iron etc., but because in the N-process, useful mn ion also precipitates under alkaline condition, reaction formula is as follows:
MnSO
4+CaO+H
2O＝Mn(OH)
2↓+CaSO
4
Greater than 3 o'clock, the manganous hydroxide precipitation in the solution began to produce at PH in evidence, and manganese enters waste residue with the manganous hydroxide precipitation forms, and is together discarded, caused the waste of resource.
Summary of the invention
Purpose of the present invention just provides the method that a kind of secondary neutralisation of sulphuric acid manganese waste liquid improves the utilization ratio of manganese, this method adopts secondary neutralisation of sulphuric acid manganese waste liquid, the primary slag outward transport, and the secondary slag returns neutralizing well and makes neutralizing agent, can improve the utilization ratio 3-5% of manganese, have remarkable economic efficiency.
The object of the present invention is achieved like this: a kind of secondary neutralisation of sulphuric acid manganese waste liquid improves the method for the utilization ratio of manganese, and it comprises the following steps:
A. neutralizing treatment: will drop in the neutralizing well with the manganous sulfate waste liquid that pyrolusite oxidation aniline produces, add in the lime and PH to 3-4, filter, get filtrate, the filter residue outward transport is handled;
B. secondary neutralizing treatment: the filtrate that step a is produced adds in the lime and PH to 3-7, filters, and filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, and filter residue returns in the neutralizing well of step a, participates in neutralization reaction next time.
The present invention adopts secondary neutralisation of sulphuric acid manganese waste liquid, the primary slag outward transport, and the secondary slag returns neutralizing well and makes neutralizing agent, can improve the utilization ratio 3-5% of manganese, has remarkable economic efficiency.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1: the manganous sulfate waste liquid 1L (sulfur acid manganese 15%) that will produce with pyrolusite oxidation aniline, add in the lime and PH to 3, filter, the filter residue outward transport is handled, and filtrate adds in the lime and PH to 4 again, filters, filter residue returns the neutralization that is used for the same manganous sulfate waste liquid of another part in the neutralizing well, filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, gets manganous carbonate 105 grams after washing, drying, and the utilization ratio of manganese improves 3%.
Embodiment 2: the manganese sulfate solution 1L (sulfur acid manganese 15%) that will produce with pyrolusite oxidation aniline, add in the lime and PH to 4, filter, the filter residue outward transport is handled, and filtrate adds in the lime and PH to 4 again, filters, filter residue returns the neutralization that is used for the same manganous sulfate waste liquid of another part in the neutralizing well, filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, gets manganous carbonate 205 grams after washing, drying, and the utilization ratio of manganese improves 3.5%.
Embodiment 3: the manganous sulfate waste liquid 1L (sulfur acid manganese 15%) that will produce with pyrolusite oxidation aniline, add in the lime and PH to 4, filter, the filter residue outward transport is handled, filtrate adds in the lime and PH to 5 again, filters, and filter residue returns the neutralization that is used for the same manganous sulfate waste liquid of another part in the neutralizing well, filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, gets manganous carbonate 120 grams after washing, drying.The utilization ratio of manganese improves 4%.
Embodiment 4: the manganous sulfate waste liquid 1L (sulfur acid manganese 15%) that will produce with pyrolusite oxidation aniline, add in the lime and PH to 4, filter, filter residue outward transport is handled, filtrate add in the lime again and PH to=7, filter, filter residue returns the neutralization that is used for the same manganese sulfate solution of another part in the neutralizing well, filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, gets manganous carbonate 215 grams after washing, drying, and the utilization ratio of manganese improves 5%.
Claims (1)
1. the method for the utilization ratio of a secondary neutralisation of sulphuric acid manganese waste liquid raising manganese is characterized in that it comprises the following steps:
A. neutralizing treatment: will drop in the neutralizing well with the manganous sulfate waste liquid that pyrolusite oxidation aniline produces, add in the lime and pH to 3-4, filter, get filtrate, the filter residue outward transport is handled;
B. secondary neutralizing treatment: the filtrate that step a is produced adds in the lime and pH to 3-7, filters, and filtrate adds excessive bicarbonate of ammonia and prepares manganous carbonate, and filter residue returns in the neutralizing well of step a, participates in neutralization reaction next time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100524878A CN101070213B (en) | 2007-06-15 | 2007-06-15 | Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100524878A CN101070213B (en) | 2007-06-15 | 2007-06-15 | Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101070213A CN101070213A (en) | 2007-11-14 |
| CN101070213B true CN101070213B (en) | 2010-11-10 |
Family
ID=38897654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100524878A Active CN101070213B (en) | 2007-06-15 | 2007-06-15 | Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101070213B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704553B (en) * | 2009-07-20 | 2012-11-07 | 贵州红星发展股份有限公司 | Method for preparing manganese carbonate |
| CN103864149B (en) * | 2014-03-20 | 2015-12-30 | 中信大锰矿业有限责任公司大新锰矿分公司 | A kind ofly from electrolytic manganese factory waste water, reclaim manganese and the method for reducing emission of carbon dioxide |
| CN106396056B (en) * | 2016-10-27 | 2019-08-27 | 长沙矿冶研究院有限责任公司 | Handle method magnesium eletrolysis containing manganese manganese waste water and recycle Manganese in Waste Water |
-
2007
- 2007-06-15 CN CN2007100524878A patent/CN101070213B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101070213A (en) | 2007-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102747225B (en) | Method for comprehensively recycling copper, selenium and uranium from stone coal extraction vanadic acid immersion liquid | |
| CN104480317B (en) | A kind of cobalt metallurgy of nickel waste water slag recycling processing method | |
| CN101618892B (en) | Recovery and comprehensive utilization method of heavy metals in stainless steel pickling wastewater sludge | |
| CN110983045A (en) | Method for removing iron and aluminum from nickel-cobalt-manganese solution | |
| CN106119544A (en) | A kind of extraction titanium slag, tungsten and method of vanadic salts from discarded SCR catalyst | |
| CN101830583A (en) | Method for treating waste acid by gypsum sedimentation, arsenic oxidizing sedimentation and iron salt neutralization and co-precipitation | |
| CN101585554B (en) | Method for preparing manganous carbonate by using waste slag and waste water containing manganese as raw materials | |
| CN100556831C (en) | The environmental protection of stainless steel acid-washing waste liquid utilizes method | |
| CN102888511A (en) | Iron removal method of hydrometallurgical acidic leaching solution | |
| CN103768910B (en) | SO in a kind of flue gas during smelting 2with heavy metal synergistic purification method and device | |
| CN105803212B (en) | A kind of method of Call Provision in heavy cobalt slag from oxidation | |
| CN101070213B (en) | Method for increasing manganese utilizing rate by secondary neutralizing manganese sulfate | |
| CN102351231A (en) | Resource utilization method for titanium white by-product ferrous sulphate | |
| CN101792176B (en) | Preparation method for producing nano-red lead (lead tetraoxide) via dry-wet process technology | |
| CN102061386A (en) | Method for removing iron in leaching liquid of lateritic nickel ore by oxidation | |
| CN112267023B (en) | Two-stage defluorination method for fluorine-containing material | |
| CN104232924A (en) | Copper extraction and iron removal method of copper ore acid leaching liquid | |
| CN103952572A (en) | Method for optimizing zinc hydrometallurgy hot acid leaching process by pressure leaching | |
| CN105399182A (en) | Method for high efficiently removing heavy metals from polluted acid | |
| CN104060093B (en) | A kind for the treatment of process of waste water neutralize gypsum tailings | |
| CN102965499A (en) | Method for extracting valuable element in arsenic salt purification slag from zinc hydrometallurgy | |
| CN111187906B (en) | Method for purifying manganese sulfate solution | |
| CN104261585A (en) | Method for treating metallurgy wastewater and recycling resources | |
| CN104630485A (en) | Method for extracting vanadium from ferric vanadate mud | |
| CN102345016B (en) | Method for recovering arsenic and heavy metals from contaminated acid generated by metallurgical off-gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230913 Address after: 443200 Yaojiagang Fine Chemical Park, Dongshi Town, Zhijiang City, Yichang City, Hubei Province Patentee after: HUBEI HAOYUAN MATERIAL TECHNOLOGY Co.,Ltd. Address before: 443200 2 Stone Hill Road, Zhijiang economic and Technological Development Zone, Hubei, China Patentee before: HUBEI KAIYUAN CHEMICALS & TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |