Umgomo oyisisekelo wokuhlolwa komlilo (Isimiso Sendlela)

Kunezinhlobo eziningi nezinqubo ezahlukene zokusebenza, okuhlanganisa ukuhlolwa komthofu, ukuhlolwa kwe-bismuth, ukuhlolwa kwethini, ukuhlolwa kwe-antimony, ukuhlolwa kwe-nickel sulfide, ukuhlolwa kwe-copper sulfide, ukuhlolwa kwe-copper-iron-nickel, ukuhlolwa kwethusi, ukuhlolwa kwensimbi, njll. Nokho, izimiso zokuncibilikisa. kanye nokusabela ezindleleni ezintsha zokuhlola ezihlukahlukene kusenokufana okuningi nendlela yokuhlola eholayo. Phakathi kwazo zonke izivivinyo zomlilo, okuvame ukusetshenziswa kakhulu futhi okubaluleke kakhulu ukuhlolwa kokuhola. Inzuzo yayo ukuthi ukuhola okuholela kungashaywa. Inhlanganisela yokuhlolwa komthofu kanye nobuchwepheshe bokuvunguza kwensisi ingacebisa izinsimbi eziyigugu ngenqwaba yamagremu amasampuli kuzilinganiso ezinesisindo esingamamiligremu ambalwa. Ekuhlolweni okuholayo, izinga lokuqoqwa kwe-Au ngu> 99%, futhi kusekhona izinga eliphezulu lokutakula kwe-Au eliphansi njengo-0.2 ~ 0.3g/t. Ukunemba kokuhlaziywa kwe-lead assay ye-macro and trace value metals kuphezulu kakhulu. Okulandelayo incazelo emfushane yesimiso sokuhlolwa komlilo nge-lead assay njengesibonelo.

Ukuhlolwa komlilo okuholayo kuhlukaniswe ikakhulukazi izigaba ezi-3:

(1) Ukuncibilika. Isebenzisa ama-reagents aqinile ukuze ixube namatshe, insimbi noma imikhiqizo encibilikisiwe, ukushisa nokuncibilika ku-crucible, futhi isebenzisa umthofu ukuze ithwebule igolide, isiliva nezinsimbi eziyigugu esimweni esincibilikisiwe ukwenza ingxubevange yomthofu (ngokuvamile ebizwa ngokuthi izinkinobho zomthofu, ebizwa nangokuthi umthofu oyigugu. ). Ngenxa yamandla adonsela phansi athile aphezulu engxubevange yokuhola, ishona phansi ku-crucible. Ngesikhathi esifanayo, isisekelo sensimbi ye-oxides kanye ne-gange kusampula kusabela ngokushintshashintsha okufana ne-silica, i-borax, ne-sodium carbonate ukwenza i-slag efana ne-silicate noma i-borate, entanta phezulu ngenxa yamandla adonsela phansi amancane athile. , Ukuhlukanisa igolide nesiliva kusampula. Ngakho-ke, phakathi nenqubo yokuhlola umlilo, yomibili imisebenzi yokubola amasampula kanye nokunothisa izinsimbi eziyigugu kuyadlalwa.

(2) Ukufutha umlotha. Faka ingxubevange yomthofu ethreyini yomlotha endaweni yokushisa efanelekile ukuze kuqhunyiswe umlotha ukukhipha umthofu. Ngesikhathi sokuvunguza komlotha, umthofu ukhishwa nge-oxidized ku-oxide oholayo futhi ungene ku-ashtray enezimbotshana, ngaleyo ndlela ukhiphe umthofu enkinobho yokuhola kanye nenani elincane lesisekelo sensimbi, igolide Isiliva nezinsimbi eziyigugu azikho oxidized futhi zihlala esitsheni somlotha ukuze zakheke. izinhlayiya zegolide nesiliva.

(3) Igolide elihlukanisa izinsalela . Sebenzisa i-nitric acid ukuncibilikisa izinhlayiya eziyinhlanganisela yegolide nesiliva ukuze uncibilikise isiliva kuyilapho igolide lihlala liqinile. Ngemva kokucisha, kala izinhlayiya zegolide ezitholiwe ukuze ubale okuqukethwe kwegolide. Okuqukethwe kwesiliva kungabalwa ngokusekelwe kumehluko phakathi kwekhwalithi yezinhlayiya eziyinhlanganisela yegolide nesiliva kanye nekhwalithi yegolide .

Ngemuva kokuthi indlela yokuhlola umlilo iqeda ukuhlukaniswa nokunothisa igolide, isiliva nezinsimbi eziyigugu, ngaphezu kwendlela eshiwo ngenhla ye-gravi metric yokunquma igolide nesiliva, ngemuva kokuhlakaza izinhlayiya zegolide nesiliva nge-aqua regia, ukuhlaziya okuhlukahlukene kwamakhemikhali. izindlela zingasetshenziswa ukunquma igolide, isiliva nezinye izinsimbi eziyigugu.

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