Cyanide Sodium Heap Leaching Project ntawm Oxidized Gold Ore hauv Senegal

Ib lub qhov av kub hauv Senegal yog cov hlau kub oxidized qib qis nrog qib kub ntawm 2.49 g / t. Kev tshawb fawb hauv chav kuaj tau ua tiav los ntawm kev siv cov txheej txheem leaching heap . Cov teebmeem ntawm cov txheej txheem xws li qhov loj me ntawm cov hlau, hom thiab cov koob tshuaj ntawm cov neeg sawv cev leaching, lub sijhawm leaching, thiab hom thiab cov koob tshuaj ntawm cov tshuaj oxidants pabcuam rau kev rho tawm kub tau raug tshawb xyuas. Cov xwm txheej zoo tshaj plaws tau txiav txim siab, ua tiav tus nqi leaching kub ntawm 89.57% thiab qib kub hauv cov seem leaching ntawm 0.26%. Cov txiaj ntsig no muab lub hauv paus txhim khu kev qha rau kev txhim kho thiab kev siv cov hlau no.

1. Ore Properties

Qib kub ntawm cov ore raw yog 2.49 g / t, uas yog lub ntsiab tseem ceeb rov qab tau. Cov qib nyiaj yog 4.26 g / t, nrog cov ntsiab lus qis. Lub ntsiab impurity nyob rau hauv cov ore yog SiO₂, ua raws li me me ntawm Al thiab Fe. Qhov teeb meem tseem ceeb yog arsenic, nrog qib arsenic ntawm 0.68%. Cov qhab nia ntawm lwm cov ntsiab lus yog qhov tsawg. Cov ntxhia pob zeb tseem ceeb hauv cov ore yog limonite, thiab sulfide cov zaub mov tsis tshua muaj tsawg, feem ntau yog pyrite. Gangue minerals feem ntau yog quartz, feldspar, thiab av nplaum minerals.

Lub pob zeb kub no yog ib qho huab cua oxidized ore nrog cov qauv xoob, feem ntau nyob rau hauv daim ntawv ntawm cov khoom tawg thiab av. Petrographic identification qhia tau hais tias feem ntau ntawm cov pyrite nyob rau hauv ore muaj nyob rau hauv daim ntawv ntawm euhedral nplej, embedded nyob rau hauv quartz, feldspar, thiab chlorite. Qhov loj me me yog qhov zoo, feem ntau yog li ntawm 0.02 txog 0.4 hli. Limonite zoo li pseudomorph ntawm pyrite los yog colloidal limonite tsim los ntawm condensation ntawm ferric hydroxide tov nrog ib tug me me ntawm silicate av nplaum minerals, sau cov kab nrib pleb ntawm gangue minerals. Quartz feem ntau tshwm sim raws li metacolloidal chalcedony quartz, nrog rau feem ntau qhov sib txawv ntawm 0.02 txog 0.15 hli. Feldspar yog nyob rau hauv daim ntawv ntawm irregular grains los yog aggregates, nrog ib tug particle loj ntawm 0.02 mus rau 0.3 hli. Cov minerals kub nyob rau hauv no ore muaj ib tug kuj zoo particle loj, teej tug mus rau fine-grained kub ntawm -0.001 hli.

2. Kev sim

Cov hlau ore uas raug tsoo kom me me, ces muab nchuav rau hauv lub thoob cylindrical uas muaj pob zeb hauv av. Qhov sib piv ntawm cov kua thiab cov khoom khov kho yog 1.5:1. Ntxiv cov kua qaub kom kho qhov pH kom siab dua 11. Thiab ntxiv ib qho Sodium cyanide . Kev rho tawm tau ua tiav ntawm qhov kub thiab txias rau ib lub sijhawm. Tom qab sim, cov pulp tau nchuav tawm kom sib cais cov khoom khov thiab cov kua. Cov kub hauv cov khoom seem rho tawm thiab cov kub concentration hauv cov tshuaj kub tau raug soj ntsuam, thiab tus nqi rho tawm kub tau raug suav.

3. Cov qhabnias xeem thiab ntsuas

Raws li cov yam ntxwv ntawm cov khoom raw ore, kev sib piv tau ua ntawm ob txoj kev sim: tag nrho-av nkos cyanidation leaching thiab heap leaching. Cov xwm txheej xeem rau tag nrho-av nkos cyanidation yog raws li nram no: kev sib tsoo fineness ntawm -0.074 mm 95%, kua-khoom piv ntawm 3: 1. kev sib xyaw tshuab, thiab lub sijhawm leaching ntawm 24 teev. Cov xwm txheej xeem rau heap leaching yog raws li nram no: ore particle loj ntawm -10 mm, kua-khoom piv ntawm 1.5: 1. thiab lub sijhawm leaching ntawm 72 teev.

Siv cov txheej txheem heap leaching, kub leaching tus nqi yog 70.89%. Siv tag nrho cov av nkos cyanidation txheej txheem, cov kub leaching tus nqi tau nce me ntsis mus rau 74.05%. Xav txog cov nqi tsim khoom kom tiav, cov txheej txheem heap leaching tau txais yuav hauv qhov kev sim kom rov qab tau kub.

4. Cov lus xaus

(1) Cov ore kub yog oxidized ore tsim los ntawm huab cua, nrog rau qib kub ntawm 2.49 g / t, feem ntau zoo-grained kub ntawm -0.001 hli. Cov ore yog haum rau kev kho mob los ntawm cov txheej txheem cyanidation leaching.

(2) Los ntawm kev sim cov xwm txheej ntawm cov khoom siv heap leaching, cov txheej txheem zoo tshaj plaws ntawm cov txheej txheem heap leaching tau txiav txim siab raws li hauv qab no: qhov loj me ntawm cov khoom siv ore ntawm -20 hli, Sodium Cyanide koob tshuaj ntawm 2.0 kg / t, calcium peroxide koob tshuaj ntawm 4.0 kg / t, thiab lub sijhawm leaching ntawm 10 hnub. Cov ntsuas kev sib cais tau ua tiav yog tus nqi leaching kub ntawm 89.57% thiab qib kub hauv cov khoom seem leaching ntawm 0.26%.

Thaum kawg, tus neeg siv khoom lees paub peb cov txiaj ntsig kev xeem. Tom qab kev sib txuas lus nrog cov neeg siv khoom, cov qauv raug xa mus, thiab cov kev ntsuam xyuas tau txais txiaj ntsig tau ua tiav. Los ntawm kev txheeb xyuas kev sib piv, cov txheej txheem ntws tsim nyog rau qhov xwm txheej tiag tiag thaum kawg raug kho rau qhov project heap leaching project.

Tam sim no, qhov project tab tom ua kom muaj zog. Hauv ob peb lub hlis, cov nroj tsuag heap leaching yuav ua tiav.

Lub heap leaching project ntawm oxidized kub ore hauv Senegal tau ua lub luag haujlwm zoo hauv kev txhawb nqa kev txhim kho cov pob zeb kub hauv Senegal. Tag nrho cov txheej txheem ntawm txoj haujlwm no, los ntawm kev tshawb fawb txog txiaj ntsig, kev tsim vaj tsev, khoom siv tuaj txog, kev teeb tsa thiab kev ua haujlwm, kev cob qhia neeg ua haujlwm, mus rau kev ua haujlwm ntawm cov heap leaching cog, yog lub luag haujlwm ntawm United Chemical Kev lag luam thiab tau mus txog cov qauv tsim khoom.

Yog xav paub ntxiv txog kev tshaj lij? Tiv tauj peb!