CN101690910A - Method for separating lead and silver from manganese in anode sludge - Google Patents
Method for separating lead and silver from manganese in anode sludge Download PDFInfo
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- CN101690910A CN101690910A CN200910044546A CN200910044546A CN101690910A CN 101690910 A CN101690910 A CN 101690910A CN 200910044546 A CN200910044546 A CN 200910044546A CN 200910044546 A CN200910044546 A CN 200910044546A CN 101690910 A CN101690910 A CN 101690910A
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Abstract
The invention relates to a method for realizing the separation of lead and silver and the like from manganese in anode sludge. The method takes a physical benefication method, such as magnetic separation, reselection and flotation and the like as a main part, and comprises two steps: the first step: preprocessing the anode sludge, washing the anode sludge by water, removing reacted acid, water-soluble zinc or water-soluble manganese in the anode sludge; the second step: carrying out selective ore grinding on the anode sludge to a certain fineness, and processing by utilizing the physical benefication method, such as reselection, magnetic separation and flotation and the like to realize the separation of manganese from lead and silver. The invention has the following three characteristics: 1. the mode of existence of manganese in manganic concerntrate products is kept to be unchanged as quadrivalent manganese compound of manganese dioxide or potassium manganate with the same raw materials; 2. the physical benefication method adopting reselection, magnetic separation or flotation has simple process, lower manufacturing cost than the manufacturing cost generated by utilizing a wet process or a firing process; and 3. the physical benefication method adopting reselection, magnetic separation or flotation does not generate three waste pollution in the whole manufacturing process.
Description
Technical field
The present invention relates to the method for a kind of earth of positive pole separation of lead silver and manganese, particularly relate to a kind of method that realizes that the plumbous silver in the zinc anode mud (or manganese earth of positive pole) etc. separates with manganese.
Background technology
The main component of the electrolytic zinc earth of positive pole (or electrolytic manganese anode mud) is a manganese dioxide, secondly is plumbous and a spot of silver, tin etc.
Zinc hydrometallurgy factory generally all is that the zinc electrolysis anode sludge that will be main component turns back to zinc and leaches operation with manganese dioxide, and one of its purpose is to make wherein manganese oxide play the effect of oxidant, helps improving the difficult leaching rate of soaking zinc sulfide mineral of part in the calcining; Two of purpose is to help removing iron too much in the leachate, improves electric zinc quality; Three of purpose is after making solid-state manganese oxide be reduced to liquid manganese sulfate and entering into electrowinning process, the lead-silver anode plate to be played a protective role, and slows down the corrosion dissolution speed of positive plate, prolongs the service life of positive plate.The fluorine-containing chlorine of the raw material of some zinc smeltery is higher, and the lead-silver anode plate corrosion dissolution of its zinc electrolysis is very fast, contains higher lead and silver-colored in its earth of positive pole.Lead in the zinc anode mud and silver all will enter into zinc leaching residue after leaching operation along with manganese dioxide returns zinc.Leached mud is carried out flotation, recyclable part silver; By the rotary kiln reduction roasting, plumbous major part enters into the secondary zinc oxide product to leached mud, can attached product lead skim when secondary zinc oxide is reprocessed, and return plumbous smelting system again and reclaim plumbously, the lead loss of nearly 20-40% loses.But silver mainly remains in the kiln slag, and the silver in most of kiln slag can't reclaim.Therefore, people wish to study the technology that plumbous silver is directly separated and obtains respectively fully utilizing with manganese in the zinc anode mud of sening as an envoy to.
The earth of positive pole of electrolytic manganese factory all is to abandon or sell at a bargain as a kind of industrial residue all the time, fails well to be developed and fully utilize, and not only causes the wasting of resources, and contains higher heavy metals such as lead, has problem of environmental pollution.Therefore, people also wish to study the technology that plumbous silver is separated and obtains respectively fully utilizing with manganese in the manganese earth of positive pole of sening as an envoy to.
Less to the manganese that the electrolytic zinc earth of positive pole (or electrolytic manganese anode mud) is carried out with the research work that plumbous silver separates.Consult domestic literature, only find 1 piece of patent documentation, be applicant " a kind of electrolytic zinc earth of positive pole wet separation manganese and plumbous silver-colored method " (number of patent application: 200910043201.9) in application in 2009, this patented technology adopts sulfide to make reducing agent, and the manganese dioxide in the earth of positive pole is reduced to Mn
2+, leach Mn with sulfuric acid
2+, plumbous silver is stayed in the leached mud, thereby is achieved separating of plumbous silver and manganese.The bibliographical information relevant with the comprehensive utilization of the electrolytic zinc earth of positive pole only found 3 pieces, one is " the reducing the research of manganese ion dilution and antianode mud Returning utilization in the process in zinc electrolyzing " that people such as Liao Yunjun, Mei Guanggui delivered in 1999, this research is leached the earth of positive pole with the reduction of ZnS concentrate, and tetravalence manganese is reduced into bivalent manganese and enters sulfuric acid solution." the clay research of getting manganese carbonate of zinc anode " that document two is delivered in 1997 for people such as Wang Miaosheng, Zheng groups, this research is raw material with zinc anode mud, use the brown coal reduction roasting, tetravalence manganese is reduced to bivalent manganese, leach manganese with sulfuric acid again and produce manganese carbonate, the plumbous silver-colored slag behind the leaching manganese is allocated concentrate of lead sulfide ore into and is carried out pyrometallurgical smelting." certain contains manganese and plumbous comprehensive recovery research in the manganese metallurgical slag " that document three is delivered in 2009 for people such as Shen Huiting, Qin Hua, the sulphuric acid hydrolysis liquid that adopts cornstalk is to containing the reduction leaching that the manganese metallurgical slag carries out manganese oxide, the reduction leachate is after purifying, be prepared into Mn content and be 43.55% technical grade manganese carbonate, the reduction leached mud leaches removal of impurities through cornstalk hydrochloric acid hydrolysis liquid, obtains the Pb grade and be 58.60% lead concentrate.
Only find 2 pieces about the document of electrolytic manganese anode mud comprehensive utilization aspect, one of them is that University Of Jishou pays people such as intelligence honor and delivered the research paper of " manganese earth of positive pole baking acid immersion oxidizing process prepares chemical manganese bioxide " in 2007, and this article has proposed roasting-acidleach-oxidative treatment electrolytic manganese anode mud and prepared the chemical manganese bioxide method.Document two for people such as the Duan Ning of China Environmental Science Research Institute application in 2008 " a kind of high temperature reduction method that adopts is with the MnO in the earth of positive pole
2Be reduced into the method for MnO " patent, this patent adopts the high temperature reduction method with the principal component MnO in the electrolytic manganese anode mud
2Be reduced into MnO, cooling obtains containing the product of MnO particle under certain reducing atmosphere condition again, returns the electrolytic manganese production system, patent.
More than the paper or the patent document that separate with manganese about the plumbous silver of electrolytic zinc (or electrolytic manganese) earth of positive pole, all be the method that adopts wet method or pyrometallurgical smelting, and all be to adopt the tetravalence manganese dioxide in the earth of positive pole is reduced to divalence Mn
2+Technology path, the constant technology path of tetravalence manganese dioxide that keeps in electrolytic zinc (or electrolytic manganese) earth of positive pole is adopted in discovery, floats research paper and the patent documentation that the method that waits physical upgrading is separated the plumbous silver-colored and manganese in electrolytic zinc (or manganese) earth of positive pole with weighing magnetic.
Summary of the invention
The object of the present invention is to provide a kind of physical method to handle electrolytic zinc (or electrolytic manganese) earth of positive pole, realize plumbous silver-colored method of effectively separating in the earth of positive pole with manganese.One of its key character is to be technological means with physical upgrading methods such as gravity treatment, magnetic separation or flotation; Its another key character is that the manganese in electrolytic zinc (or electrolytic manganese) earth of positive pole mainly exists with the tetravalent manganese compound form of manganese dioxide or potassium manganate, lead mainly exists with sardinianite, separate two kinds of products that obtain, a kind of is the plumbous silver preparation concentrate of the low high lead content of manganese, another kind is the manganic concerntrate of low plumbous high Mn content, manganese in two kinds of products is identical with raw material with plumbous compound form, does not change.
Technical scheme of the present invention can realize by following two steps: the first step is carried out preliminary treatment with the earth of positive pole, washes the earth of positive pole with water, deviates from the residual acid in the earth of positive pole, water-soluble zinc or water-soluble manganese; Second step handled earth of positive pole selective milling after certain fineness again with physical upgrading methods such as gravity treatment, magnetic separation and flotation, realize manganese and plumbous silver-colored separating.
The present invention adopts physical upgrading method such as simple gravity treatment, magnetic separation, flotation or gravity treatment, magnetic separation, flotation combined method to realize efficiently separating of plumbous silver in electrolytic zinc (or electrolytic manganese) earth of positive pole and manganese, this method is compared with patent of having applied for or open source literature reported method, has the characteristics of following three aspects: the one, and keeping the form that exists of the manganese in the manganic concerntrate product is that the tetravalent manganese compound of manganese dioxide identical with raw material or potassium manganate is constant; The 2nd, the physical upgrading method technology of gravity treatment, magnetic separation or the flotation of adopting is simple, and production cost is more much lower than wet method or thermal process; The 3rd, adopt the physical upgrading method of gravity treatment, magnetic separation or flotation can not produce three-waste pollution in whole process of production.
Description of drawings
Fig. 1 is the XRD diffracting spectrum of certain zinc anode mud sample in the example 1
Fig. 2 is spiral chute in the example 6-shaking table combined process flow
Fig. 3 is the one thick one single-minded closed circuit flow process of magnetic separation of sweeping in the example 7
Fig. 4 is magnetic separation-gravity treatment in the example 8 (shaking table) Combined Trials flow process
Fig. 5 is magnetic separation-gravity treatment in the example 9 (shaking table)-flotation combined flow process
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with example.
Technical scheme of the present invention is based on physical upgrading methods such as magnetic separation, gravity treatment and flotation, go on foot realization by following two: the first step is carried out preliminary treatment with the earth of positive pole, wash the earth of positive pole with water, deviate from residual acid in the earth of positive pole and water-soluble zinc, water-soluble manganese (when the earth of positive pole is zinc anode mud, what remove is zinc sulfate and manganese sulfate, when the earth of positive pole is the manganese earth of positive pole, remove for manganese sulfate), the acid solution that contains zinc ion (or manganese ion) can be returned zinc (or manganese) and leach operation and make water-soluble zinc (or manganese) and residual acid obtain recycling; Second step handled earth of positive pole selective milling after certain fineness again with physical upgrading methods such as gravity treatment, magnetic separation and flotation, realize manganese and plumbous silver-colored separating.The form that exists of the lead in the resulting plumbous silver preparation concentrate product is a sardinianite, remains unchanged with raw material, and the form that exists of the manganese in the resulting manganic concerntrate product is tetravalent manganese compounds such as manganese dioxide or potassium manganate, remains unchanged with raw material.
Second step of this step can be one of any method in gravity treatment, magnetic separation and the flotation, also can be the associating of gravity treatment, magnetic separation and method for floating.
Reselecting method can adopt shaking table, also can adopt spiral chute.
It is 1000GS～20000GS that magnetic selection method adopts the scope of the magnetic field intensity of magnetic separator.
Method for floating adopts flotation device, adopt alkyl dithiocarbonate (xanthate) or alkyl dithiophosphoric acid salt (black powder) to do collecting agent, make activator with copper sulphate or plumbi nitras, do foaming agent with terpenic oil, methyl isobutyl carbinol, isooctanol or other high carbon chain fusels.
Example 1: certain electrolytic zinc earth of positive pole chemical analysis (seeing Table 1) shows and contains Mn32.1%, contains Pb19.8%, and about argentiferous 1223g/t, XRD diffraction analysis (see figure 1) as a result shows that the lead in this earth of positive pole is mainly with PbSO
4Exist, manganese is mainly with KMn
8O
16Exist.After this earth of positive pole water countercurrent washing pH values of pulp become about 5 from about 1, Separation of Solid and Liquid obtained the washery slag filtrate of filter residue and about treble amount, and filter residue contains manganese about 36%, leaded rising to about 21%, and about argentiferous 1350g/t, filtrate contains H
2SO
428g/l
4, contain zinc 5.6g/l, contain manganese 2.1g/l.
Certain zinc anode mud chemical analysis results of table 1
| Project | ??Mn | ????Pb | ???Ag(g/t) | Zn (water) | Mn (water) | ????H 2O | ??H 2SO 4(water) |
| Content (%) | ??32.07 | ????19.76 | ???1223 | 1.83 | ????0.72 | ????～15 | ??3.77 |
Example 2: the zinc anode body refuse sample after the washing in the example 1 (containing manganese 36%, leaded 21%, argentiferous 1350g/t) is arrived all by 120 mesh sieves with 120 mesh sieves control selective milling, handle with floatation, collecting agent adopts butylamine black powder and butyl xanthate, make activator with plumbi nitras, terpenic oil is done foaming agent, flotation obtains the silver preparation concentrate of argentiferous 13000g/t, silver raising recovery rate 60%.
Zinc anode body refuse sample in 3 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, handle with spiral chute, it is leaded 28.2% to obtain heavy product, contains manganese 32%, light product is leaded 10%, contains manganese 45%.
Zinc anode body refuse sample in 4 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, handle with shaking table, it is leaded 45% to obtain heavy product, contains manganese 15%, light product is leaded 10%, contains manganese 45%.
Zinc anode body refuse sample in 5 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, use the magnetic separator sorting, obtain magnetic product leaded 11.2%, contain manganese 49.5%, non-magnetic product is leaded 36.2%, contains manganese 24.6%.
Zinc anode body refuse sample in 6 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, make of spiral chute and to roughly select, the closed-circuit test flow process (see figure 2) of making primary cleaning and once purging selection of shaking table respectively obtains heavy mineral leaded 51%, contain manganese 12%, light mineral contains 8.5%, contains manganese 47%.
Zinc anode body refuse sample in 7 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, carry out the closed circuit flow test (see figure 3) of one roughing, primary cleaning, once purging selection with magnetic separator, obtain magnetic product leaded 11.3%, contain manganese 47%, argentiferous 1140g/t, non-magnetic product is leaded 41.4%, contains manganese 21%, argentiferous 1700g/t.
Zinc anode body refuse sample in 8 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, carry out one roughing, primary cleaning, once purging selection with magnetic separator, then carry out closed circuit flow test (see figure 4) selected for the second time and that scan for the second time with shaking table, obtain magnetic product leaded 7%, contain manganese 49%, argentiferous 1150g/t, non-magnetic product leaded 50%, contain manganese 10%, argentiferous 1650g/t.
Zinc anode body refuse sample in 9 pairs of examples 1 of example after the washing (containing manganese 36%, leaded 21%, argentiferous 1350g/t) arrives all by 80 mesh sieves with 80 mesh sieves control selective milling, carry out one roughing, primary cleaning, once purging selection with magnetic separator, then carry out closed circuit flow test (see figure 5) selected for the second time and that scan for the second time with shaking table, obtain the product of the low lead content of a kind of high manganese and the product of high plumbous low manganese content, again the low plumbous product of high manganese is carried out flotation with butyl xanthate and butylamine black powder, obtain flotation concentrate and flotation tailing.Flotation concentrate is merged into plumbous silver preparation concentrate with the product of high plumbous low manganese content, and is leaded 55%, contains manganese 8%, argentiferous 2750g/t.Flotation tailing is leaded 7%, contains manganese 49%, argentiferous 500g/t.
Example 10 certain electrolytic manganese anode mud chemical analysis (seeing Table 2) show and contain Mn48.25%, contain Pb6.20%, about argentiferous 98g/t, ball milling to 80% carries out washup after by 120 mesh sieves, part solubility salt is soluble in water, the earth of positive pole contains manganese and rises to about 51%, leaded rising to about 7.5%, and argentiferous rises to about 110g/t.
Certain manganese earth of positive pole chemical analysis results of table 2
| Project | ??Mn | ????Pb | ?Ag(g/t) | Mn (water) | ??H 2O |
| Content (%) | ??48.25 | ????6.2 | ?98 | 0.72 | ??～10 |
Washing and ball milling to 80% (contain manganese 51% by the manganese earth of positive pole slag specimen of 120 mesh sieves in 11 pairs of examples 10 of example, leaded 7.5%, argentiferous 110g/t), handle with floatation, collecting agent adopts butylamine black powder and butyl xanthate, makees activator with plumbi nitras, and terpenic oil is done foaming agent, obtain the silver preparation concentrate of argentiferous 509g/t, silver raising recovery rate 58%.
Manganese earth of positive pole slag specimen by 80 mesh sieves of 12 pairs of examples of example 10 washing and ball milling to 80% (contain manganese 51%, leaded 7.5%, argentiferous 110g/t) is handled with shaking table, and it is leaded 18.2% to obtain heavy product, contains manganese 41.3%, and gently product is leaded 2.4%, contains manganese 54.9%.
Manganese earth of positive pole slag specimen by 80 mesh sieves of washing and ball milling to 80% in 13 pairs of examples 10 of example (contain manganese 51%, leaded 7.5%, argentiferous 110g/t), use the magnetic separator sorting, it is leaded 2.74% to obtain the magnetic product, contains manganese 55.37%, non-magnetic product is leaded 17.60%, contains manganese 41.56%.
Claims (5)
1. the physical upgrading method of earth of positive pole separation of lead silver and manganese is characterized in that this method based on physical upgrading methods such as magnetic separation, gravity treatment and flotation, and concrete steps are:
The first step is carried out preliminary treatment with the earth of positive pole, washes the earth of positive pole with water, deviates from the residual acid in the earth of positive pole, water-soluble zinc or water-soluble manganese;
Second step, earth of positive pole selective milling is handled with physical upgrading methods such as gravity treatment, magnetic separation and flotation after certain fineness again, realize manganese and plumbous silver-colored separating.
2. the method for a kind of earth of positive pole separation of lead silver according to claim 1 and manganese is characterized in that described second step can adopt a kind of of physical upgrading methods such as magnetic separation, gravity treatment and flotation, also the associating of two or more in these methods.
3. according to the method for claim 1,2 described a kind of earth of positive pole separation of lead silver and manganese, it is characterized in that described reselecting method adopts shaking table or spiral chute.
4. according to the method for claim 1,2 described a kind of earth of positive pole separation of lead silver and manganese, it is characterized in that the scope of the magnetic field intensity that described magnetic selection method adopts is 1000GS～20000GS.
5. according to claim 1,2 described a kind of earth of positive pole separation of lead silver method with manganese, it is characterized in that described method for floating adopts alkyl dithiocarbonate or alkyl dithiophosphoric acid salt to do collecting agent, make activator with copper sulphate or plumbi nitras, do foaming agent with terpenic oil, methyl isobutyl carbinol, isooctanol or other high carbon chain fusels.
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| CN102586599A (en) * | 2012-03-07 | 2012-07-18 | 株洲冶炼集团股份有限公司 | Method for recovering valued metals from zinc anode sludge |
| CN102912138A (en) * | 2012-10-19 | 2013-02-06 | 湖南有色金属研究院 | Method of recycling zinc, manganese, lead and silver from zinc electrowinning anode mud |
| CN102974467A (en) * | 2012-10-30 | 2013-03-20 | 东北大学 | Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof |
| CN103074496A (en) * | 2013-01-21 | 2013-05-01 | 昆明理工大学 | Method for separating and purifying magnesium dioxide from anode mud |
| CN103301929A (en) * | 2013-03-29 | 2013-09-18 | 云南金鼎锌业有限公司 | Selective zinc oxide leaching and weak acidic zinc sulfide flotation smelting and selection combining process |
| CN104475265A (en) * | 2014-11-21 | 2015-04-01 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN105903561A (en) * | 2016-04-16 | 2016-08-31 | 北京矿冶研究总院 | Method for recovering manganese from cobalt-manganese multi-metal oxidized ore |
| CN106269211A (en) * | 2016-08-29 | 2017-01-04 | 南丹县南方有色金属有限责任公司 | The control technical matters of granularity during zinc leaching acid leaching residue flotation recovery silver |
| CN108246489A (en) * | 2017-12-05 | 2018-07-06 | 中信大锰矿业有限责任公司大新锰矿分公司 | The resource utilization of manganese ore mud utilizes method |
| CN108754145A (en) * | 2018-05-30 | 2018-11-06 | 宁夏天元锰业有限公司 | The technique of valuable metal in a kind of recycling electrolytic manganese anode mud |
| CN109939813A (en) * | 2019-04-24 | 2019-06-28 | 葫芦岛八家矿业股份有限公司 | The secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing |
| CN110016562A (en) * | 2019-04-23 | 2019-07-16 | 重庆大学 | A kind of method of lead in removing electrolytic manganese anode mud |
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| CN102586599B (en) * | 2012-03-07 | 2013-07-31 | 株洲冶炼集团股份有限公司 | Method for recovering valued metals from zinc anode sludge |
| CN102586599A (en) * | 2012-03-07 | 2012-07-18 | 株洲冶炼集团股份有限公司 | Method for recovering valued metals from zinc anode sludge |
| CN102912138A (en) * | 2012-10-19 | 2013-02-06 | 湖南有色金属研究院 | Method of recycling zinc, manganese, lead and silver from zinc electrowinning anode mud |
| CN102974467B (en) * | 2012-10-30 | 2014-03-05 | 东北大学 | Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof |
| CN102974467A (en) * | 2012-10-30 | 2013-03-20 | 东北大学 | Beneficiation reagent and of separating and recycling precious metal from cooper anode mud using method thereof |
| CN103074496A (en) * | 2013-01-21 | 2013-05-01 | 昆明理工大学 | Method for separating and purifying magnesium dioxide from anode mud |
| CN103074496B (en) * | 2013-01-21 | 2014-02-12 | 昆明理工大学 | Method for separating and purifying magnesium dioxide from anode mud |
| CN103301929B (en) * | 2013-03-29 | 2015-03-25 | 云南金鼎锌业有限公司 | Smelting and selection combined process of selective zinc oxide leaching and weak acidic zinc sulfide flotation |
| CN103301929A (en) * | 2013-03-29 | 2013-09-18 | 云南金鼎锌业有限公司 | Selective zinc oxide leaching and weak acidic zinc sulfide flotation smelting and selection combining process |
| CN104475265A (en) * | 2014-11-21 | 2015-04-01 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN104475265B (en) * | 2014-11-21 | 2017-01-18 | 广西大学 | Method for flotation removal of coronadite out of manganic concerntrate |
| CN105903561A (en) * | 2016-04-16 | 2016-08-31 | 北京矿冶研究总院 | Method for recovering manganese from cobalt-manganese multi-metal oxidized ore |
| CN105903561B (en) * | 2016-04-16 | 2018-06-29 | 北京矿冶研究总院 | Method for recovering manganese from cobalt-manganese multi-metal oxidized ore |
| CN106269211A (en) * | 2016-08-29 | 2017-01-04 | 南丹县南方有色金属有限责任公司 | The control technical matters of granularity during zinc leaching acid leaching residue flotation recovery silver |
| CN108246489A (en) * | 2017-12-05 | 2018-07-06 | 中信大锰矿业有限责任公司大新锰矿分公司 | The resource utilization of manganese ore mud utilizes method |
| CN108754145A (en) * | 2018-05-30 | 2018-11-06 | 宁夏天元锰业有限公司 | The technique of valuable metal in a kind of recycling electrolytic manganese anode mud |
| CN108754145B (en) * | 2018-05-30 | 2019-09-17 | 宁夏天元锰业有限公司 | The technique of valuable metal in a kind of recycling electrolytic manganese anode mud |
| CN110016562A (en) * | 2019-04-23 | 2019-07-16 | 重庆大学 | A kind of method of lead in removing electrolytic manganese anode mud |
| CN109939813A (en) * | 2019-04-24 | 2019-06-28 | 葫芦岛八家矿业股份有限公司 | The secondary enrichment comprehensive recovering process of sulphur silver ferrimanganic valuable element in a kind of tailing |
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