Uphando kwi-Arsenic Inhibition kunye ne-Sulfur-Iron Enrichment kwi-Cyanidation Tailings

intshayelelo

I-cyanidation tailings eveliswa ngexesha leenkqubo zokukhutshwa kwishishini le-metallurgical ibeka imingeni ebalulekileyo yokusingqongileyo ngenxa yomxholo wayo ophezulu we-arsenic. Ukongeza kwiinkxalabo zokusingqongileyo, ezi ntsalela zimela umthombo onokubakho wesibini. Ke, kubalulekile ukuphuhlisa iindlela ezisebenzayo zokutyebisa ngaxeshanye izinto ezixabisekileyo ezinjengesulfure kunye nentsimbi ngelixa unciphisa umxholo we-arsenic. Olu phononongo lujolise kwi Iimisila ze-cyanidation ukusuka kumnyibilikisi, ojolise ekufezekiseni ezi njongo ngenkqubo yokudada eyilwe kakuhle.

Indlela

Umthombo weSampula

I-cyanidation tailings esetyenziswe kolu phando ifunyenwe kwi-smelter ethile. Iisampulu zokuqala zaphawulwa ukuqonda ukubunjwa kwazo okusisiseko kunye neepropathi zemineralogical phambi kokuba kuqhutyekwe novavanyo lokudada.

Umfuniselo weFlotation

I-asidi ye-sulfuric (H_2SO_4) yayiqeshwe njenge-activator sulphur. Inhlanganisela ye-sodium humate kunye ne-calcium hypochlorite (Ca (ClO)_2) isetyenziswe njenge-arsenic inhibitor. Imifuniselo emininzi yeflotation yenziwa phantsi kweemeko ezilawulwa ngononophelo. Iiparamitha zokulinga, kubandakanywa idosi ye-reagent, ingxinano yepulp, kunye nexesha lokudada, zenziwe zaphuculwa ukufikelela ezona ziphumo zintle zokwahlukana.

Iindlela zokuHlalutya

Ukuskena i-Electron Microscopy (SEM) kunye ne-X-ray Diffraction (XRD) zisetyenziselwe ukuhlalutya iimveliso ezijikelezayo. I-SEM isetyenziselwe ukujonga i-morphology yomhlaba kunye neempawu zamasuntswana ezisampulu. Uhlalutyo lwe-XRD luncede ekuchongeni izigaba zemineralojiki ezikhoyo kwiisampulu, zibonelela ngengqiqo kwimeko yokwenzeka kwe-arsenic ngaphakathi kweentsila zecyanidation.

iziphumo

Imifuniselo ye-flotation ibonise iziphumo ezimangalisayo. Umgangatho wesulfure kumgxininiso ufikelele kwi-48%, ngelixa i-arsenic grade yathotywa ngempumelelo ukuya ngaphantsi kwe-0.2%. Ezi ziphumo zibonisa ukusebenza kakuhle kwee-reagents ezikhethiweyo kunye nenkqubo ye-flotation ephuculweyo ekufezekiseni iinjongo ezimbini zokuphucula i-sulfure-iron kunye nokususwa kwe-arsenic.

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Ukwenzeka kwemeko yeArsenic

Ngokusebenzisa uhlalutyo lwe-SEM kunye ne-XRD, imeko ye-arsenic kwi-cyanidation tailings yamiselwa. I-Arsenic yafunyanwa idibaniswa neeminerali ezithile, eziphembelele ukuziphatha kwayo ngexesha lenkqubo yokudada. Ukuqonda le meko yokwenzeka kubalulekile ekuphuhliseni izicwangciso zokwahlula ekujoliswe kuzo.

Izizathu zokwahlula okunzima kweSulfur kunye neArsenic

Uphononongo luye lwaqhuba uphando lokuqala lwezizathu ezibangela umngeni wokuhlukana kwesulfure kunye ne-arsenic kwi-cyanidation tailings. Izinto ezifana nokusasazwa kakuhle kweeminerali ezithwele i-arsenic, ukusebenzisana komphezulu phakathi kweeminerali ezahlukeneyo, kunye nokwakheka kweekhemikhali ezintsonkothileyo zeentsalela zanegalelo kobu bunzima. Ukusetyenziswa kwe (H_2SO_4), i-sodium humate, kunye (Ca (ClO)_2) indibaniselwano yanciphisa le mingeni ukuya kumlinganiselo othile, njengoko kungqinwa ziziphumo ezithandekayo zokudada.

isiphelo

Olu phononongo luphuhlise ngempumelelo inkqubo yokudada ukutyebisa i-sulphur-iron kunye nokususa i-arsenic kwiintsila zecyanidation. Ukusetyenziswa kwe (H_2SO_4) njenge-activator sulfure kunye nokudibanisa kwe-sodium humate kunye (Ca (ClO)_2) njenge-arsenic inhibitor ibonakalise ukusebenza. Uhlalutyo lwe-SEM kunye ne-XRD lunikeze ukuqonda okubalulekileyo kwimeko yokwenzeka kwe-arsenic kunye nezizathu zokwahlukana okunzima kwesulfure-arsenic. Uphando lwexesha elizayo lunokujolisa ekwandiseni ngakumbi inkqubo yokudada, ukuhlola ezinye ii-reagents, kunye nokuphucula ukusebenza kakuhle kokubuyiswa kobutyebi kunye nokukhuselwa kwendalo.