Indima yeSodium Sulfide kwiMineral Processing

intshayelelo

Kwicandelo elinzima nelibalulekileyo lokucubungula izimbiwa , ii-reagents ezahlukeneyo zeekhemikhali zidlala indima ebalulekileyo ekwenzeni ngcono ukwahlula kunye nokukhupha izimbiwa ezixabisekileyo. Phakathi kwezi, i-sodium sulfide (Na₂S) ivelele njengekhemikhali eguquguqukayo nesetyenziswa kakhulu. Inemisebenzi emininzi kwiintlobo ezahlukeneyo zemisebenzi yokucubungula izimbiwa, ingakumbi kwiinkqubo zokudada , ezisisiseko sokubuyiselwa kwezimbiwa ngokufanelekileyo kwiintsimbi.

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 sisithinteli esisebenzayo kwiiminerali ezininzi ze-sulfide xa zisetyenziswa ngobuninzi. Ulandelelwano lwesiphumo sayo sokuthintela kwiiminerali ze-sulfide luhlala luncipha ngolu hlobo lulandelayo: i-galena, i-sphalerite, i-chalcopyrite, i-bornite, i-covellite, i-pyrite, kunye ne-chalcocite. Okuphawulekayo kukuba, ngenxa yokuntanta kwendalo okuhle kakhulu kwe-molybdenite, i-sodium sulfide ayinakuyithintela. Olu phawu lusetyenziswa kwi-flotation ye-molybdenite, apho i-Na₂S ingasetyenziselwa ukucinezela i-flotation yezinye iiminerali ze-sulfide, okuvumela ukwahlukana 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. I-Ore Mineralogy : Ukwahluka kwe-ore mineralogy kunokuba nefuthe elikhulu. Umzekelo, kwi-oxide ore sulfidization, ukubakho kweeminerali ezahlukeneyo ezifana ne-galena, i-sphalerite, kunye ne-cerussite kwi-ore kunokwenza inkqubo yokusabela ibe nzima. Ngokufanayo, ukubakho kweeminerali ezahlukeneyo ze-oxide ezifana ne-malachite, i-azurite, i-atacamite, kunye ne-chrysocolla xa zidibene nako kuchaphazela isiphumo se-sulfidization.

2. Iiminerali ezisetyenziswa yiSodium Sulfide : Iiminerali ezifana ne-pyrite, i-marcasite, i-talc, i-cerussite, iiclays, i-slimes, iityuwa zomhlaba ze-alkaline, i-gypsum, kunye nee-chloride zinokutya i-sodium sulfide. Oku kutyiwa kunokukhokelela ekubeni i-sodium sulfide ingabi ninzi ngokwaneleyo kwiimpendulo ezifunekayo kwinkqubo yokuntywila, ngaloo ndlela kunciphisa ukusebenza kwayo.

3. Ixabiso le-pH : Xa i-sodium sulfide ininzi, i-pH ye-ore pulp inokuba ngaphezulu kakhulu. Le meko ye-pH egqithisileyo ayinakuchaphazela kuphela ukusabela kweekhemikhali ze-sodium sulfide kunye neeminerali kodwa ikwachaphazela nokusebenza kwezinye ii-reagents kwinkqubo ye-flotation, ekugqibeleni ichaphazela ukwahlulwa kunye nokubuyiselwa kweeminerali.

4. Indawo kunye neNani leeNqanaba zoKongezwa kweSodium Sulfide : Ingongoma kunye nenani lamaxesha i-sodium sulfide eyongezwa ngawo ngexesha lenkqubo yokuntywila nazo zibalulekile. Iindawo zokongezwa ezingachanekanga okanye inani elingafanelekanga lamanqanaba okongeza zinokubangela ukusasazwa okungalinganiyo kwe-sodium sulfide kwi-ore pulp okanye ukusabela okungalindelekanga, zombini ezi zinto zinokunciphisa ukusebenza kakuhle kwemisebenzi yayo.

5. Ukwakheka Kwamanzi : Ukwakheka kwamanzi asetyenziswa kwinkqubo yokudada, ingakumbi umxholo we-calcium, i-magnesium ions, kunye nokuqina kwamanzi, kunokunxibelelana ne-sodium sulfide kunye neeminerali. Olu nxibelelwano lunokukhuthaza okanye luthintele ukusabela kwe-sodium sulfide, ngaloo ndlela luchaphazela indima yayo ekucutshungulweni kwezimbiwa.

isiphelo

I-Sodium sulfide idlala indima ebanzi nebalulekileyo ekucutshungulweni kwezimbiwa, ingakumbi ekujikelezeni kwezinto. Imisebenzi yayo njenge-inhibitor, i-sulfidizing agent , i-desorbing agent, kunye nokukwazi kwayo ukuphelisa ii-ion eziyingozi kunegalelo elikhulu ekuhlukaniseni nasekubuyiselweni kweeminerali ezixabisekileyo kwiintlobo ezahlukeneyo zee-ores. Nangona kunjalo, ukuze kusetyenziswe ngokupheleleyo amandla e-sodium sulfide, kuyimfuneko ukuqwalasela ngononophelo nokulawula izinto ezahlukeneyo ezinokuchaphazela ukusebenza kwayo kwindawo enzima yokucubungula izimbiwa. Ngokwenza njalo, ishishini lokucubungula izimbiwa linokufikelela kumanqanaba aphezulu okubuyisela izixhobo, iindleko zemveliso eziphantsi, kunye nophuhliso oluzinzileyo.