CN107574310A - A kind of method for efficiently leaching copper in waste printed circuit board - Google Patents
A kind of method for efficiently leaching copper in waste printed circuit board Download PDFInfo
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- CN107574310A CN107574310A CN201710845467.XA CN201710845467A CN107574310A CN 107574310 A CN107574310 A CN 107574310A CN 201710845467 A CN201710845467 A CN 201710845467A CN 107574310 A CN107574310 A CN 107574310A
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- circuit board
- printed circuit
- waste printed
- manganese
- copper
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- 239000002699 waste material Substances 0.000 title claims abstract description 56
- 239000010949 copper Substances 0.000 title claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 40
- 238000002386 leaching Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 35
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 61
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 33
- 239000011572 manganese Substances 0.000 claims abstract description 32
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims abstract description 9
- 229910000357 manganese(II) sulfate Inorganic materials 0.000 claims abstract description 7
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims abstract description 5
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000431 copper oxide Inorganic materials 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 3
- 239000007800 oxidant agent Substances 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 9
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 238000011017 operating method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910001655 manganese mineral Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000605118 Thiobacillus Species 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000010793 electronic waste Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- ZWXOQTHCXRZUJP-UHFFFAOYSA-N manganese(2+);manganese(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mn+2].[Mn+3].[Mn+3] ZWXOQTHCXRZUJP-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to technical field of wet metallurgy, specifically discloses a kind of method for efficiently leaching copper in waste printed circuit board：Sulfuric acid solution and the more metal dusts of waste printed circuit board are sized mixing, with MnO present in manganese oxide ore2、Mn2O3、Mn3O4For oxidant, reacted in stirring condition, the value Mn in metallic copper and manganese oxide ore in the more metal dusts of waste printed circuit board is separately converted to CuSO4And MnSO4, specifically include following step：（1）Waste printed circuit board is crushed, obtains the more metal dusts of waste printed circuit board after waterpower separation by shaking table；（2）More metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, it is 0.9 to control Leaching Systems Mn/Cu mol ratios:1~1.5:1, the solid mass ratio of liquid is 3:1~10:1, sulfuric acid concentration is 1.5 ~ 4.0mol/L, 1.5 ~ 3h of stirring reaction at 30 ~ 65 DEG C, and separation of solid and liquid obtains the leachate rich in copper and manganese after reaction.The leaching rate of copper and manganese of the present invention reaches more than 96%, realizes the recycling of useless circuit board active ingredient, has environment-friendly, and reaction is gentle, and technique is simple, it is easy to operate the features such as.
Description
Technical field
Technical field belonging to the present invention is trade waste regeneration field, and in particular to one kind is high from waste and old circuit board
The method that effect leaches copper.
Background technology
Since 21 century, the production of electrical equipment and electronic equipment turned into the most fast manufacturing industry of world's growth rate it
One, with making rapid progress for scientific and technological progress, the quantity of electronic product sharply increases and service life constantly shortens, and the world today is just
It is faced with unprecedented electrical equipment and electronic equipment discarded object tide.According to statistics, the whole world is annual at present produces electronic waste about
40000000 tons, and it is just most fast as increasing in municipal refuse with the speed increase of 3 times of other municipal refuses, electron wastes
A kind of solid waste.Basis of the printed circuit board (PCB) as electronics industry, it is indispensable important in each electronic product
Part, because electronics and the update of information industry product are very fast, cause caused discarded printed circuit therewith
The quantity of plate is very huge.Due to containing the content highest of substantial amounts of metal, especially copper in waste printed circuit board, therefore, with useless
It is raw material to abandon circuit board, and metallic copper therein is recycled, and realizing turns waste into wealth, and is returned for environmental protection and resource
Receive to utilize and there is far reaching significance.
At present, pyrogenic attack, mechanical treatment and wet-treating etc. are mainly included for the Resource analysis of waste printed circuit board.
But because equipment present in mechanical treatment process and fire metallurgy process is expensive, energy consumption is big, it is seriously polluted the problems such as, from previous generation
Record since the seventies, the wet processing process of waste printed circuit board is paid attention to and quickly grown deeply, in recent years as waste printed circuit board
The focus of middle valuable metal recovery area research.Patent CN103388160B discloses the molten copper of one kind waste printed circuit board -- and electricity is heavy
The method that product combination method prepares superfine cupper powder, waste printed circuit board is placed in and is made up of copper sulphate, ammonium sulfate, ammoniacal liquor, additive
In reactant aqueous solution system, superfine metal copper powder is prepared under electrolysis conditions, but ammoniacal liquor is easy in the technical process
Volatilization, causes working environment very poor, and larger occupational health hazards be present.Patent CN100406591C discloses a kind of from electronics
The method that metallic copper is extracted in discarded object, using metallic copper of the oxygen in three-phase bed in indirect oxidation dissolution circuit board, and with
Solvent extraction extracts the selective copper in solution, and electro deposited copper finally is prepared with electrodeposition method, and the technique is to operation
It is more strict to cross range request, and equipment investment cost is larger.Patent CN106947866A discloses a kind of returning for waste printed circuit board
Application way is received, using chemistry-bio combined metal leached in waste printed circuit board, is adding the oxidation of the acidophilia through domestication
After ferrous Thiobacillus carries out Microorganism Leaching, metal copper leaching rate can reach more than 90%, but the technique extraction time is grown, and oxygen
Change ferrous Thiobacillus easy in inactivation in extreme temperature conditions, reduce leaching efficiency.
In summary, in waste printed circuit board in the removal process of metallic copper, leaching method is key technology.Existing side
Method is had some shortcomings in leaching efficiency, oxidant source and cost etc. and, it is necessary to studied out in varying degrees
The leaching new method of metallic copper in the more efficient waste printed circuit board of hair, promote the Efficient Development profit of China's waste printed circuit board resource
With and environmental protection.
The content of the invention
It is an object of the invention to provide a kind of leaching method of copper in waste printed circuit board of economical and efficient, used oxidation
Agent wide material sources, the adaptable strong, effect that technique is simple and convenient to operate, reaction condition is gentle, copper leaching rate is high of this method
Fruit.
The purpose of the present invention is achieved through the following technical solutions, a kind of side for efficiently leaching copper in waste printed circuit board
Method, sulfuric acid solution and the more metal dusts of waste printed circuit board are sized mixing, with MnO present in manganese oxide ore2、Mn2O3、Mn3O4For oxygen
Agent, reacted in stirring condition, the value Mn in metallic copper and manganese oxide ore in the more metal dusts of waste printed circuit board point
CuSO is not converted into it4And MnSO4, specifically include following step：
(1) by waste printed circuit board is broken, after waterpower sorting after obtain the more metal dusts of waste printed circuit board；
(2) more metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, control Mn/Cu moles of Leaching Systems
Than for 0.9~1.5, the solid mass ratio of liquid is 3~10:1, sulfuric acid concentration is 1.5~4.0mol/L, the stirring reaction at 30~65 DEG C
1.5~3h, separation of solid and liquid obtains the leachate rich in copper and manganese after reaction.
In the present invention, the value Mn difference in the metallic copper and manganese oxide ore in the more metal dusts of described waste printed circuit board
It is converted into CuSO4And MnSO4Reaction equation be：
Cu+MnO2+2H2SO4=CuSO4+MnSO4+2H2O (1)
Cu+Mn2O3+3H2SO4=CuSO4+2MnSO4+3H2O (2)
Cu+Mn3O4+4H2SO4=CuSO4+3MnSO4+4H2O (3)
In the present invention, the more metal dust particle diameters of described waste printed circuit board are less than 0.335mm.
In the present invention, described manganese oxide ore particle diameter is less than 0.335mm.
In the present invention, described waste printed circuit board comes from the electron wastes such as discarded television set, refrigerator, mobile phone, computer
In any one or two or more any composition.
In the present invention, described manganese oxide ore be selected from pyrolusite, psilomelane, hausmannite, braunite, electrolytic manganese anode mud,
Any one in oceanic multi-metal manganese nodule, useless manganese oxide catalyst or two or more any composition.
Compared with prior art, the invention has the advantages that：
First, one aspect of the present invention can realize the efficient leaching of metallic copper in waste printed circuit board, on the other hand, promote
The reduction of value Mn in manganese oxide ore, realize copper, promoter manganese it is efficient using and recovery, the leaching rate of copper and manganese reach 96% with
On.The present invention realizes the recycling of useless circuit board active ingredient, has environment-friendly, and reaction is gentle, and technique is simple, copper
Leaching rate is high, it is easy to operate the features such as.
Second, the method that the present invention uses can be achieved with the leaching of copper in waste printed circuit board at a lower temperature, have
The advantages that energy consumption is low, technique is simple and convenient to operate, leaching rate is high.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention
Protection domain.
Except there is a special instruction, the various reagents used in the present invention, raw material be can be commercially commodity or
Person can pass through product made from known method.
The more metal dust chemistry compositions of waste printed circuit board used in following embodiments, as shown in table 1.
The chemical composition (%) of the more metal dusts of the waste printed circuit board of table 1
| Cu | Ca | Al | Mg | Ti | Zn | Fe | Sn |
| 45.0 | 5.67 | 4.08 | 0.43 | 0.35 | 0.32 | 0.23 | 0.05 |
Embodiment 1
Manganese oxide sample ore is derived from Xiangxi manganese oxide ore, and main manganese mineral is pyrolusite, and its chemical composition analysis is shown in
Table 1.The extract technology flow of copper is as shown in figure 1, operating procedure is as follows in a kind of waste printed circuit board of the invention：
(1) waste printed circuit board crushed, obtain the more metal dusts of waste printed circuit board after gravity treatment；
(2) more metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, control Mn/Cu moles of Leaching Systems
Than for 1.2:1, the solid mass ratio of liquid is 6:1, sulfuric acid concentration 3.0mol/L, the stirring reaction 2h at 45 DEG C, solid-liquid point after reaction
From the leachate rich in copper and manganese, copper leaching rate 96.32% is obtained, manganese leaching rate is 96.87%.
The manganese oxide ore chemical composition analysis (%) of table 1
| Mn | Fe | SiO2 | Al | S | P | K | Na | Ca | Mg | Ba |
| 20.34 | 10.46 | 37.22 | 4.43 | 0.13 | 0.089 | 0.9 | 0.074 | 0.52 | 0.47 | 0.11 |
Embodiment 2
Manganese oxide ore is same as Example 1.Extract technology flow such as Fig. 1 institutes of copper in a kind of waste printed circuit board of the invention
Show, operating procedure is as follows：
(1) waste printed circuit board crushed, obtain the more metal dusts of waste printed circuit board after gravity treatment；
(2) more metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, control Mn/Cu moles of Leaching Systems
Than for 1.3:1, the solid mass ratio of liquid is 8:1, sulfuric acid concentration 3.5mol/L, the stirring reaction 3h at 50 DEG C, solid-liquid point after reaction
From the leachate rich in copper and manganese, copper leaching rate 98.62% is obtained, manganese leaching rate is 97.54%.
Embodiment 3
Manganese oxide sample ore is derived from the Xiangxi electrolytic manganese factory earth of positive pole, and main manganese mineral is pyrolusite, and manganese grade is
49.4%, lead grade is 4.5%.Ore is through being crushed to -50 mesh grades.The leaching work of copper in a kind of waste printed circuit board of the invention
Skill flow is as shown in figure 1, operating procedure is as follows：
(1) waste printed circuit board crushed, obtain the more metal dusts of waste printed circuit board after gravity treatment；
(2) more metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, control Mn/Cu moles of Leaching Systems
Than for 1.3:1, the solid mass ratio of liquid is 5:1, sulfuric acid concentration 2.5mol/L, the stirring reaction 3h at 55 DEG C, solid-liquid point after reaction
From the leachate rich in copper and manganese, copper leaching rate 96.68% is obtained, manganese leaching rate is 96.82%.
Embodiment 4
Manganese ore sample ore is derived from Yongzhou City manganese oxide ore in the present embodiment, and main manganese mineral is pyrolusite, and manganese grade is
20.3%, Iron grade 10.5%, silica 37.2%.Ore is through being crushed to -200 mesh grades.A kind of of the invention gives up
The extract technology flow of copper in circuit board is abandoned as shown in figure 1, operating procedure is as follows：
(1) waste printed circuit board crushed, obtain the more metal dusts of waste printed circuit board after gravity treatment；
(2) more metal dusts, manganese oxide ore and sulfuric acid solution are sufficiently mixed, slurrying, control Mn/Cu moles of Leaching Systems
Than for 1.1:1, the solid mass ratio of liquid is 4:1, sulfuric acid concentration 1.5mol/L, the stirring reaction 3h at 45 DEG C, solid-liquid point after reaction
From the leachate rich in copper and manganese, copper leaching rate 96.04% is obtained, manganese leaching rate is 96.12%.
Claims (6)
- A kind of 1. method for efficiently leaching copper in waste printed circuit board, it is characterised in that methods described is：By sulfuric acid solution with discarding The more metal dusts of circuit board are sized mixing, with MnO present in manganese oxide ore2、Mn2O3、Mn3O4For oxidant, occur in stirring condition React, the value Mn in metallic copper and manganese oxide ore in the more metal dusts of waste printed circuit board is separately converted to CuSO4And MnSO4, Specifically include following steps：(1) waste printed circuit board is crushed and sorted with waterpower shaking table, sorting obtains the more metal dusts of waste printed circuit board；(2) the more metal dusts of waste printed circuit board that step (1) obtains are thoroughly mixed to form leaching with manganese oxide ore and sulfuric acid solution Go out system, slurrying, it is 0.9 to control Leaching Systems Mn/Cu mol ratios：1~1.5:1, the solid mass ratio of liquid is 3:1~10:1, sulfuric acid Concentration is 1.5~4.0mol/L, 1.5~3h of stirring reaction at 30~65 DEG C, and separation of solid and liquid obtains being rich in copper and manganese after reaction Leachate.
- 2. according to the method for claim 1, it is characterised in that：Metallic copper in the more metal dusts of described waste printed circuit board CuSO is separately converted to the value Mn in manganese oxide ore4And MnSO4Reaction equation be：Cu+MnO2+2H2SO4=CuSO4+MnSO4+2H2O (1)Cu+Mn2O3+3H2SO4=CuSO4+2MnSO4+3H2O (2)Cu+Mn3O4+4H2SO4=CuSO4+3MnSO4+4H2O (3)。
- 3. method according to claim 1 or 2, it is characterised in that：The more metal dust particle diameters of described waste printed circuit board are small In 0.335mm.
- 4. according to the method for claim 3, it is characterised in that：Described manganese oxide ore particle diameter is less than 0.335mm.
- 5. according to the method for claim 4, it is characterised in that：Described waste printed circuit board comes from discarded television set, discarded Any one in refrigerator, waste mobile telephone, discarded computer or two or more any composition.
- 6. according to the method for claim 5, it is characterised in that：Described manganese oxide ore is selected from pyrolusite, psilomelane, black manganese Any one in ore deposit, braunite, electrolytic manganese anode mud, oceanic multi-metal manganese nodule, useless manganese oxide catalyst or it is any two kinds or Two or more compositions.
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| CN201710845467.XA CN107574310A (en) | 2017-09-19 | 2017-09-19 | A kind of method for efficiently leaching copper in waste printed circuit board |
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|---|---|---|---|
| CN201710845467.XA CN107574310A (en) | 2017-09-19 | 2017-09-19 | A kind of method for efficiently leaching copper in waste printed circuit board |
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| CN107574310A true CN107574310A (en) | 2018-01-12 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858277A (en) * | 2006-05-25 | 2006-11-08 | 东华大学 | Method for extracting metal from printed circuit board |
| CN101157481A (en) * | 2007-07-24 | 2008-04-09 | 汪云华 | Method for preparing manganese sulfate by manganese oxide ore |
| CN104263938A (en) * | 2014-09-09 | 2015-01-07 | 中国电器科学研究院有限公司 | Reagent for reclaiming precious/inert metal from bottom electroplating copper/nickel materials |
| CN104263939A (en) * | 2014-09-09 | 2015-01-07 | 中国电器科学研究院有限公司 | Method for recovering rare/inert metals from bottom electroplating copper/nickel material |
| CN105112674A (en) * | 2015-09-18 | 2015-12-02 | 中南大学 | All-wet recovery process for waste circuit boards |
| CN106834694A (en) * | 2017-01-03 | 2017-06-13 | 长沙汇聚环境技术有限公司 | A kind of recovery method of waste printed circuit board metals resources |
-
2017
- 2017-09-19 CN CN201710845467.XA patent/CN107574310A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1858277A (en) * | 2006-05-25 | 2006-11-08 | 东华大学 | Method for extracting metal from printed circuit board |
| CN101157481A (en) * | 2007-07-24 | 2008-04-09 | 汪云华 | Method for preparing manganese sulfate by manganese oxide ore |
| CN104263938A (en) * | 2014-09-09 | 2015-01-07 | 中国电器科学研究院有限公司 | Reagent for reclaiming precious/inert metal from bottom electroplating copper/nickel materials |
| CN104263939A (en) * | 2014-09-09 | 2015-01-07 | 中国电器科学研究院有限公司 | Method for recovering rare/inert metals from bottom electroplating copper/nickel material |
| CN105112674A (en) * | 2015-09-18 | 2015-12-02 | 中南大学 | All-wet recovery process for waste circuit boards |
| CN106834694A (en) * | 2017-01-03 | 2017-06-13 | 长沙汇聚环境技术有限公司 | A kind of recovery method of waste printed circuit board metals resources |
Non-Patent Citations (3)
| Title |
|---|
| 姚迎 等编: "《化学知识词典》", 30 September 1995, 济南出版社 * |
| 宁孝生: ""氧化锰矿直接还原浸出溶液的净化电积"", 《中国锰业》 * |
| 李昌新 等: ""电解金属锰渣中重金属的固化新技术"", 《中国锰业》 * |
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Application publication date: 20180112 |