Kev tsim hluav taws xob moldenic manganese flakes (EMM) suav nrog cov tshuaj thiab cov txheej txheem electrochemical. Ua kom muaj kev nyab xeeb, zoo, thiab ib puag ncig ua raws ib puag ncig ua kom nruj rau cov kev ceev faj hauv qab no:
1. Raw Khoom Siv Tuav
Manganese ore Zoo:
Siv High-qib manganese ore (loj dua los yog sib npaug rau 40% MN cov ntsiab lus) kom txo qis impurities (piv txwv, phosphorus).
Kev ntsuas kev sim ua ntej hauv xrf / xrd tsom xam kom ua kom ua kom zoo ua pauj.
Acid Manulation:
Kov cov sulfuric acid (h25o4h2 so4) nrog rau kev saib xyuas corrosion-resistant khoom siv) thiab ua kom muaj kev tso pa kom tsis txhob muaj pa lom.
2. Leaching & Purification
Cov tshuaj tiv thaiv:
Tswj cov khoom kub ntawm80-90 DEGREEthiab ph1.5–2.5kom ua tiav mn discurtution.
Soj ntsuam fe 2+ fe} fe 2+} {{{{3 {3}, thiab cov hlau hnyav; Siv oxidants (piv txwv li, h2o2h2 o2) lossis cov neeg sawv cev los daus (piv txwv li, nh₃) rau kev lim dej.
Khib Tswjhwm:
Kho acidic dej wastewaterater nrog txiv qaub (caocao) mus rau neutalize pH thiab precipitive cov hlau hnyav ua ntej tawm.
3. Electrolysis Txheej Txheem
Kev siv hluav taws xob Electrolyte:
Tswj hwm MNSO4MNsO4 concentration ntawm30–40 g/Lthiab h25o4h2 so4 ntawm120–150 g/LRau kev ua tau zoo tam sim no efficiency.
Kev khiav hauj lwm tsis muaj:
Tswj tam sim no ceev ntawm400–600 A/m²Thiab kub ntawm35-45 degreeTxhawm rau kom ntseeg tau tias cov kev tso nyiaj tso tseg thiab txo cov hluav taws xob khib nyiab.
Nquag ntxuav caj npab (stainless hlau / titanium) kom tiv thaiv kev loj hlob dendritic thiab luv voj voog.
Cov roj teeb meem kev phom sij:
Txhim kho cov pa tso tawm kom tshem hydrogen (h2h2) thiab sulfur dioxide (li2so2) roj av, uas tawg tau thiab lom.
4. Tom qab ua & ntim khoom
Ntxuav & Kom Qhuav:
Rinse flakes thoroughly with deionized water to remove residual acid (pH>6pH>6).
Qhuav ntawm80-100 degreeHauv cov inert atmospheres (piv txwv li, nitrogen) los tiv thaiv oxidation.
Ntim Khoom:
Siv cov dej noo-pov thawj, hnab ntim khoom (piv txwv li, txhuas-laminated pe) kom tsis txhob muaj kev nqus dej noo thiab hydrogen ntau.
5. Kev Nyab Xeeb & Ib puag ncig ua raws
Kev tiv thaiv neeg ua hauj lwm:
Caw PPE (cov hnab looj tes acid-resistant hnab looj tes, goggles, cov pa ua pa) rau kev tuav tshuaj.
Cov neeg ua haujlwm qhia cov neeg ua haujlwm thaum muaj xwm txheej ceev rau cov kua qaub ua rau cov kua qaub lossis roj.
Emission tswj:
Siv cov twj tso kua ntsev kom ntes tau so2soS2 pa tawm; Ua raws li ISO 14001 lossis cov cai hauv zos.
Khib Rho Tawm:
Rov qab los ntawm sludge ntawm kev rov ua dua; Rov qab siv cov dej uas tsis raug kaw nyob rau hauv kaw-lub tshuab kaw.
6. Kev ua kom zoo
Xyuas Kev Saib Xyuas Purity:
COMPS ICP-MS lossis AAS kuaj kom paub meej MN purity ntau dua los yog sib npaug rau 99.7% thiab kab mob tsis nyiam (piv txwv li<0.03%, Fe <0.05%).
Muab cov ntawv thib peb thib peb (piv txwv li, SGS) rau cov neeg yuav khoom thoob ntiaj teb.
Batch traceability:
Sau npe txhua pob nrog cov hnub tsim khoom, qib kawm, thiab cov ntawv qhia tshuaj tshuaj tshuaj.
7. Zog txuag hluav taws xob
Txhim zog lub zog siv:
Use rectifiers with >95% kev ua tau zoo thiab rov qab khib nyiab kub los ntawm electrolysis rau kev ziab cov txheej txheem.
Txuas Ntxiv Hluav Taws Xob:
Tshawb Hnub Ci / Cua Fais Fab Rau OVSET lub teeb hluav taws xob siab noj hluav taws xob (~ 6, {}}} kwh ib tuj ntawm EMM).
8. Cov Khoom Siv Txij Nkawm
Kev Tiv Thaiv Corrosion:
Tshawb cov tso tsheb hlau luam, kav dej, thiab twj tso kua mis txhua hli; Hloov qhov chaw uas puas tau ua los ntawm PP, PVC, lossis Titanium.
Cathohode Tu:
Tshem tawm manganese tso nyiaj me me los yog ntawm cov kua qaub acid los xyuas kom meej surfaces.
