Indima yeSodium Sulfide kwiMineral Processing

intshayelelo

Kwintsimi entsonkothileyo nebalulekileyo ukulungiswa kwezimbiwa, ii-reagents ezahlukeneyo zeekhemikhali zidlala indima ephambili ekwandiseni ukwahlulwa kunye nokutsalwa kweeminerali ezixabisekileyo. Phakathi kwezi, sodium sulfide (Na₂S) ibalasele njengekhemikhali eguquguqukayo nesetyenziswa ngokubanzi. Inemisebenzi emininzi kwiindidi ezahlukeneyo zokusetyenzwa kwezimbiwa, ngakumbi kwi Ukudibanisa iinkqubo, ezisisiseko sokufunyanwa kakuhle kwezimbiwa kwintsimbi ekrwada.

Iipropati zeMichiza yeSodium Sulfidi

I-sodium sulfide yityuwa ephuma kwi-hydrogen sulfide, i-dibasic acid ebuthathaka. Kwizisombululo ezinamanzi kwiqondo lobushushu begumbi kunye noxinzelelo lomoya omnye, phakathi kweentlobo ezingaphezu kwama-30 zemolekyuli kunye ne-ionic sulfur, zintandathu kuphela ezizinzileyo ngokwe-thermodynamically: HSO₄⁻, SO₄²⁻, H₂S, HS⁻, kunye ne-S²⁻. I-pH yesixokelelwano samanzi luphawu olubalulekileyo olulawulayo kwi-oxidation ye-hydrogen sulfide. Ngaphantsi kwe-pH 6. I-"molecular hydrogen sulfide" yeyona ntlobo yesalfa encitshisiweyo. Kwi-pH 7. iintlobo zesulfure ezincitshisiweyo kwisisombululo zihlulwe ngokulinganayo phakathi kwe "dissolved hydrogen sulfide" kunye neentlobo ze-bisulfide (HS⁻), kunye ne-HS⁻ ibe yintlobo ephambili kuluhlu lwe-pH lwe-8 - 11.

Imisebenzi yeSodium sulfide kwiMineral Processing

Inhibitor ye-Sulfide Minerals

I-sodium sulfide iyasebenza inhibitor kwiiminerali ezininzi zesulfide xa zisetyenziswa kakhulu. Umyalelo wempembelelo yayo yokuthintela kwiiminerali ze-sulfide ngokubanzi uyancipha ngolu hlobo lulandelayo: i-galena, i-sphalerite, i-chalcopyrite, i-bornite, i-covellite, i-pyrite, kunye ne-chalcocite. Ngokucacileyo, ngenxa yokuhamba kakuhle kwendalo kwe-molybdenite, i-sodium sulfide ayinakuyithintela. Olu phawu lusetyenziswe kwi-flotation ye-molybdenite, apho i-Na₂S ingasetyenziselwa ukucinezela ukujikeleza kwamanye amaminerali e-sulfide, okuvumela ukuhlukana okukhethiweyo kwe-molybdenite.

Sulfidizing Agent for Non-Frerous Metal Oxide Ores

I-non-ferrous metal oxide ores ayinakubanjwa ngokuthe ngqo ngabaqokeleli be-xanthate. Nangona kunjalo, xa i-sodium sulfide yongezwa kwi-pulp ye-ore phambi kwe-xanthate flotation, isabela kumphezulu we-non-ferrous metal oxide minerals. Oku kusabela kuphumela ekwenziweni kwefilimu ebhityileyo yeeminerali zesulfide kumphezulu weeminerali zeoxide. Ngokomzekelo, xa intsimbi yelothe emhlophe idibana nesodium sulfide, umbala wayo womphezulu uyatshintsha ube mhlophe ube mnyama; kwaye xa i-malachite isabela nge-sodium sulfide, umbala wayo womphezulu uyatshintsha ukusuka eluhlaza ukuya kumnyama omnyama. Olu tshintsho lombala lubonisa ukubunjwa okuphumelelayo kwefilimu ye-sulfide eyahlukileyo kwi-mineral yokuqala. Emva kwe-sulfidization, i-xanthate inokubamba ngokufanelekileyo ezi ziminerali, ngaloo ndlela iphucula ukubuyiswa kwe-flotation ye-non-ferrous metal oxide ores.

I-Agent ye-Desorbing ye-Sulfide Mineral Mixed Concentrates

Xa isixa esikhulu se-sodium sulfide sisetyenzisiweyo, siyakwazi ukutshabalalisa i-xanthate - uhlobo lwabaqokeleli be-adsorbed kumphezulu weeminerali. Ekwahlulweni kwelothe - i-zinc exutywe zizigxina okanye ubhedu - i-lead exubeneyo, i-pulp ye-ore inokuqala igxininiswe. Emva koko, inani elikhulu le-sodium sulfide yongezwa ukuze idilize abaqokeleli kwi-mineral surface. Emva koko, i-pulp ihlanjwe, kwaye amanzi ahlambulukileyo adityaniswe ukuze aphinde alungelelanise i-pulp kwi-flotation yokuhlukana okulandelayo. Le nkqubo inceda ekupheliseni uphazamiseko lwabaqokeleli bokuqala kwaye yenza kube lula ukwahlula izimbiwa ezahlukeneyo kugxininiso oluxutyiweyo.

Ukuphelisa ii-Ions ezinobungozi kwi-Ore Pulp

I-sodium sulfide inokusabela ngee-ion ezininzi zetsimbi ukwenza i-insoluble sulfide precipitates. Kwi-pulp ye-ore, kukho ii-ion zentsimbi ezinokuthi zibe nefuthe elibi kwi-flotation, njengeeyoni ezithile zentsimbi enzima. Ngokongeza i-sodium sulfide, ezi ion zetsimbi ezinobungozi zinokususwa kwi-ore pulp ngendlela ye-sulfide precipitates, ngaloo ndlela idala imeko-bume yeekhemikhali efanelekileyo ngakumbi yokudada kunye nokuphucula ukusebenza kakuhle kokujikeleza.

Izinto ezichaphazela ukusetyenziswa kweSodium Sulfide kwi-Mineral Processing

1. Ore Mineralogy: Ukwahlukana kwe-ore mineralogy kunokuba nempembelelo ebalulekileyo. Ngokomzekelo, kwi-oxide ore sulfidization, ubukho be-co-ubukho beeminerali ezahlukeneyo ezifana ne-galena, i-sphalerite, kunye ne-cerussite kwi-ore inokwenza nzima inkqubo yokusabela. Ngokufanayo, ubukho beeminerali ezahlukeneyo ze-oxide ezifana ne-malachite, i-azurite, i-atacamite, kunye ne-chrysocolla kunye nayo ichaphazela umphumo we-sulfidization.

2. I-Sodium Sulfide - Ukusetyenziswa kweeMinerali: Amaminerali afana ne-pyrite, i-marcasite, i-talc, i-cerussite, i-clays, i-slimes, i-alkaline yomhlaba i-salts, i-gypsum, kunye ne-chlorides inokutya i-sodium sulfide. Oku kusetyenziswa kunokukhokelela kwisixa esinganelanga se-sodium sulfide ekhoyo kwiimpendulo ezinqwenelekayo kwinkqubo yokudada, ngokunciphisa ukusebenza kwayo.

3. Ixabiso le-pH: Kwiidosi eziphezulu ze-sodium sulfide, i-pH ye-pulp ye-ore inokugqithisa. Le meko ye-pH egqithisileyo ayinakuchaphazela kuphela ukuphendulwa kweekhemikhali ze-sodium sulfide kunye neeminerali kodwa iphinde ibe nefuthe ekusebenzeni kwamanye ama-reagents kwinkqubo ye-flotation, ekugqibeleni ichaphazela ukuhlukana kunye nokubuyiswa kweeminerali.

4. Indawo kunye nenani leSodium Sulfide Addition Stages: Inqaku kunye nenani lamaxesha e-sodium sulfide yongezwa ngexesha lenkqubo ye-flotation nayo ibalulekile. Iindawo zokongezwa ngokungafanelekanga okanye inani elingafanelekanga lezigaba zokongezwa linokubangela ukusabalalisa okungafaniyo kwe-sodium sulfide kwi-pulp ye-ore okanye ukuphendula okungalindelekanga, zombini ezinokuthi zinciphise ukusebenza kwemisebenzi yayo.

5. Ukubunjwa kwamanzi: Ukubunjwa kwamanzi asetyenziswe kwinkqubo ye-flotation, ngokukodwa umxholo we-calcium, i-magnesium ion, kunye nobunzima bamanzi, unokusebenzisana ne-sodium sulfide kunye neemaminerali. Olu nxibelelwano lunokuthi lukhuthaze okanye luthintele ukuphendula kwe-sodium sulfide, ngaloo ndlela ichaphazela indima yayo ekuqhutyweni kweeminerali.

isiphelo

I-sodium sulfide idlala indima eninzi kwaye eyimfuneko ekusetyenzweni kwezimbiwa, ngakumbi ekujikelezeni. Imisebenzi yayo njenge-inhibitor, i-agent ye-sulfidizing, i-agent ye-desorbing, kunye nokukwazi kwayo ukuphelisa i-ion ezinobungozi inegalelo elikhulu ekuhlukaneni ngokufanelekileyo kunye nokubuyiswa kweeminerali ezixabisekileyo ezivela kwiindidi ezahlukeneyo ze-ores. Nangona kunjalo, ukusebenzisa ngokupheleleyo amandla e-sodium sulfide, kuyimfuneko ukuqwalasela ngokucophelela kunye nokulawula izinto ezahlukeneyo ezinokuchaphazela ukusebenza kwayo kwimeko enzima yokulungiswa kwamaminerali. Ngokwenza njalo, ushishino lokulungisa izimbiwa lunokufikelela kumazinga aphezulu okubuyisela izixhobo zokusebenza, iindleko eziphantsi zemveliso, kunye nophuhliso oluzinzileyo.