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Papiso ea polyaluminium chloride e hlahisoang ke mekhoa e fapaneng
Ho na le phapang e kholo ea thepa e tala, litšenyehelo, bohloeki ba lihlahisoa le masimo a kopo ea Polyaluminium Chloride (PAC) ka mekhoa e fapaneng ea tlhahiso. E latelang ke tlhahlobo ea papiso e thehiloeng ts'ebetsong ea tlhahiso:
- Ho hlophisoa ho latela mokhoa oa ho omisa
- Mokhoa oa ho omisa meropa
Lisebelisoa tse tala: molora oa aluminium, slag ea aluminium, gangue ea mashala, liminerale le lisebelisoa tse ling tse theko e tlaase.
tšobotsi:
- Mofuta oa pula ea tlhaho: litšila tse ngata, lintho tse sa tsitsang metsi a mangata (> 2%), lihlahisoa tse tlaase tsa aluminium (hoo e ka bang 24-28%);
- Mofuta oa sefahla sa poleiti le foreimi: ka mor'a ho hloekisoa ka mochine, litšila lia fokotseha, lihlahisoa tsa aluminium lia eketseha (ho fihlela ho 28%), taba e sa tsitsang metsi e tlaase.
Kopo: haholo-holo e sebelisoang ho hloekisa likhoerekhoere tsa indasteri, theko e tlaase empa boleng bo akaretsang.
- Ho fafatsa mokhoa oa ho omisa
Lintho tse tala: bohloeki bo phahameng ba aluminium hydroxide kapa bauxite.
Likarolo: lihlahisoa tse phahameng tsa aluminium (> 29.5%), taba e tlaase haholo ea metsi (≤0.3%). Lebelo la ho qhibiliha ka potlako, tharollo e se nang mebala le e bonaletsang, tekanyo ea motheo ea letsoai e khona ho laola (hoo e ka bang 50%).
Likopo: ho noa Phekolo ea Metsi, tlhahiso e nepahetseng le likarolo tse ling tse hlokahalang haholo.
- Classification ho latela thepa e tala le karabelo tshebetso
- Tharollo ea asiti mohato o le mong (mokhoa oa tšepe oa aluminium)
Lisebelisoa tse tala: li-chips tsa aluminium, molora oa aluminium le litšila tse ling.
Likarolo: ts'ebetso e bonolo, theko e tlase, empa sehlahisoa se na le litšila tse boima tsa tšepe, botsitso bo bobe.
Ts'ebetso ea moemeli: mokhoa oa mantlha oa sele, ts'ebetso e phahameng empa e ntse e le mathata a kutu.
- Mokhoa oa ho qhibiliha alkaline
Lisebelisoa tse tala: bauxite, sodium aluminate.
Likarolo: sehlahisoa se hloekile (litšepe tse boima tse tlase), empa ts'ebetso e rarahane, e theko e phahameng, e hloka ho fetola boleng ba pH.
- Mokhoa oa ho se nke lehlakore
Tshebetso: aluminium chloride le sodium aluminate li lokisoa mohato ka mohato, ebe li tsoakoa le ho se nke lehlakore.
Likarolo: litšila tse fokolang, lihlahisoa tse phahameng tsa aluminium le letsoai (ho fihlela ho 85%), empa litšenyehelo tse phahameng.
- Mokhoa oa ho qhibiliha oa alum hydroxide acid
Lintho tse tala: bohloeki bo phahameng ba aluminium hydroxide.
Likarolo: E loketse tlhahiso ea bohloeki bo phahameng ba PAC (joalo ka PAC e tšoeu), empa e hloka mocheso o phahameng le khatello, tšebeliso ea matla e kholo.
- Mokhoa oa ho qhibiliha ha asiti ea liminerale (joalo ka bauxite, gangue ea mashala)
Tshebetso: ho senya, ho halika, ho qhibiliha ha asiti le ho lokisa tekanyo ea motheo.
Likarolo: lisebelisoa tse tala li theko e tlase (joalo ka gangue ea mashala), empa sehlahisoa se na le tšepe e ngata, e sebelisoang haholo bakeng sa kalafo ea likhoerekhoere tse tlase.
- Papiso ea matšoao a mantlha
| Mofuta oa ts'ebetso | Aluminium dikahare (Al₂O₃) | Letsoai (B%) | metsi a sa qhibidihang | pigment | sebaka se sebetsang |
| mokhoa oa ho omisa | 29.5% | ≈50% | ≤0.3% | E tšoeu/e pepeneneng | Metsi a nooang, indasteri e nepahetseng |
| Roller drying-plate le foreimi filtara | ≈28% | 70-85% | tlase | mosehla | likhoerekhoere tsa masepala le metsi a akaretsang a indasteri |
| Roller drying- sedimentation ea tlhaho | 24-26% | 50-80% | 2% | Bosootho / bohlooho | Litlhoko tse tlase bakeng sa phekolo ea likhoerekhoere tsa indasteri |
| Mokhoa o le mong oa ho qhibiliha ha asiti (aluminium molora) | 28% | Volatility e phahame | molelele | Bosehla bo lefifi/bosootho | Metsi a litšila a tloaelehileng a indasteri |
| Mokhoa oa ho qhibiliha ha aluminium hydroxide acid | ＞30% | Fetolela ho 90% | Tlase haholo | tšoeu | Lijo, meriana le masimo a mang a phahameng a bohloeki |
- Litlhahiso tsa khetho ea ts'ebetso
- Masimo a phahameng (metsi a nooang, meriana): ho omisoa ha spray kapa ho qhibiliha ha aluminium hydroxide acid ho khethoa ho netefatsa hore litšepe tse boima tse tlaase le bohloeki bo phahameng.
- Phekolo ea likhoerekhoere tsa masepala/liindasteri:
- Boleng ba metsi a mahareng: ts'ebetso ea moqomo oa poleiti le foreimi (ts'ebetso e phahameng ea litšenyehelo);
- Phosphorus e phahameng/metsi a litšila a tšepe a kotsi: mokhoa oa ho se nke lehlakore kapa mokhoa oa ho qhaqhoa ha alkaline ( letsoai> 80%, adsorption e matla).
- Boemo ba theko e tlase: ho qhibiliha ha asiti mohato o le mong kapa mokhoa oa ho qhibiliha ha asiti ea mashala a gangue, empa litšila li hloka ho hlahlojoa.
Keletso: Kamora hore letsoai le fete 80%, ntlafatso ea phello ea tlhoekiso e ea fokotseha, 'me ho hlokahala tekano lipakeng tsa litšenyehelo le katleho.
Boleng ba lihlahisoa tse tala tse tlaase li ka ntlafatsoa ka ho ntlafatsa ts'ebetso (e kang ho qhibiliha ha acid e mehato e 'meli le ho eketsa phofo ea calcium aluminate).
