Flotation Theory of Gold Ore

Flotation Theory of Gold Ore

Kub feem ntau yog tsim nyob rau hauv lub xeev dawb hauv ores.Cov minerals ntau tshaj plaws yog ntuj kub thiab nyiaj-kub ores.Lawv txhua tus muaj qhov zoo floatability, yog li flotation yog ib txoj hauv kev tseem ceeb rau kev ua cov kub ore.Kub feem ntau ua ke nrog ntau sulfide minerals.Symbiotic, tshwj xeeb tshaj yog feem ntau symbiotic nrog pyrite, yog li cov flotation ntawm kub thiab flotation ntawm hlau sulfide ores xws li kub-bearing pyrite yog ze ze rau kev xyaum.Cov kev coj ua flotation ntawm ob peb concentrators peb yuav qhia hauv qab no feem ntau yog kub ores uas kub thiab sulfide minerals coexist.

Nyob ntawm seb hom thiab ntau npaum li cas ntawm sulfides, cov kev kho mob hauv qab no tuaj yeem raug xaiv.
① Thaum cov sulfide nyob rau hauv cov ore feem ntau yog pyrite, thiab tsis muaj lwm yam hnyav hlau sulfides, thiab kub yog nyob rau hauv nruab nrab thiab zoo hais thiab symbiotic nrog hlau sulfide.Xws li ore yog flotated los tsim sulfide kub concentrates, thiab cov flotation concentrates yog ces leached los ntawm huab cua leaching, yog li zam kev kho mob cyanidation ntawm tag nrho cov ore.Lub flotation concentrate kuj tuaj yeem xa mus rau cov nroj tsuag pyrometallurgy rau kev ua haujlwm.Thaum cov kub feem ntau yog nyob rau hauv daim ntawv ntawm submicroscopic hais thiab pyrite, qhov ncaj qha cyanide leaching nyhuv ntawm cov concentrate tsis zoo, thiab nws yuav tsum tau roasted kom dissociate cov kub hais thiab ces yuav leached los ntawm cua.

② Thaum cov sulfides hauv cov ore muaj me me ntawm chalcopyrite, sphalerite, thiab galena ntxiv rau hlau sulfide, kub yog symbiotic nrog ob qho tib si pyrite thiab cov hlau hnyav sulfides.Kev npaj khomob dav dav: Raws li cov txheej txheem thiab cov txheej txheem tshuaj lom neeg ntawm cov hlau tsis muaj hlau sulfide ore, ntes thiab xaiv qhov sib xyaw ua ke.Cov concentrate yog xa mus rau lub smelter rau kev ua.Kub nkag mus rau tooj liab los yog txhuas (feem ntau yog tooj liab concentrates) concentrates thiab zoo li qub thaum lub sij hawm smelting txheej txheem.Qhov chaw uas kub thiab hlau sulfide yog symbiotic yuav flotated kom tau hlau sulfide concentrate, uas yuav rov qab tau los ntawm roasting thiab cua leaching.

③ Thaum muaj sulfides teeb meem rau huab cua hauv cov ore, xws li arsenic, antimony, thiab sulfides ntawm sulfide, sulfide concentrate tau los ntawm flotation yuav tsum tau roasted kom hlawv cov arsenic, sulfide thiab lwm yam hlau nyob rau hauv cov concentrate rau hauv yooj yim rau volatile hlau oxides. , grind lub slag dua thiab siv ib tug cwj mem kom tshem tawm cov volatile hlau oxides.

④ Thaum ib feem ntawm cov kub hauv cov ore muaj nyob rau hauv lub xeev dawb, ib feem ntawm cov kub yog symbiotic nrog sulfide, thiab ib feem ntawm cov kub hais impregnated nyob rau hauv lub gangue minerals.Xws li cov ore yuav tsum tau rov qab los nrog lub ntiajteb txawj nqus sib cais kom rov qab tau dawb dawb, thiab kom rov qab tau symbiosis nrog sulfide los ntawm flotation Rau kub, nyob ntawm cov ntsiab lus kub ntawm flotation tailings, nws yog ib qho tsim nyog yuav tau txiav txim siab seb puas yuav siv tshuaj leaching.Lub flotation concentrate tuaj yeem ua tau zoo hauv av thiab tom qab ntawd leached ncaj qha, los yog cov khoom siv hluav taws xob tuaj yeem ua tau zoo hauv av tom qab raug hlawv thiab tom qab ntawd leached.