Kev tshawb fawb txog Arsenic Inhibition thiab Sulfur-Iron Enrichment hauv Cyanidation Tailings

Introduction

Cov tailings cyanidation tsim tawm thaum lub sijhawm rho tawm hauv kev lag luam metallurgical ua rau muaj teeb meem loj rau ib puag ncig vim lawv cov arsenic ntau. Ntxiv rau qhov kev txhawj xeeb txog ib puag ncig, cov tailings no sawv cev rau cov peev txheej thib ob. Yog li, nws yog qhov tseem ceeb heev rau kev tsim cov txheej txheem zoo rau kev nplua nuj cov ntsiab lus muaj nqis xws li sulfur thiab hlau thaum txo cov ntsiab lus arsenic. Kev tshawb fawb no tsom mus rau Cyanidation tailings los ntawm lub smelter, lub hom phiaj yog ua tiav cov hom phiaj no los ntawm cov txheej txheem flotation zoo.

Vib this

Qauv Chaw Tau Los

Cov cyanidation tailings siv nyob rau hauv txoj kev tshawb no yog tau los ntawm ib tug tshwj xeeb smelter. Cov qauv thawj zaug tau ua kom nkag siab txog lawv cov ntsiab lus muaj pes tsawg leeg thiab cov khoom siv mineralogical ua ntej pib nrog kev sim flotation.

Kev sim Flotation

Sulfuric acid (H_2SO_4) tau ua haujlwm ua tus neeg ua haujlwm sulfur. Kev sib xyaw ntawm sodium humate thiab calcium hypochlorite (Ca(ClO)_2) tau siv los ua arsenic inhibitor. Ntau qhov kev sim flotation tau ua raws li kev tswj xyuas kom zoo. Qhov ntsuas sim, suav nrog reagent noj, pulp ntom, thiab lub sijhawm flotation, tau ua kom zoo rau ua tiav qhov kev sib cais zoo tshaj plaws.

Cov txheej txheem analytical

Scanning Electron Microscopy (SEM) thiab X-ray Diffraction (XRD) tau siv los tshuaj xyuas cov khoom flotation. SEM tau siv los saib xyuas qhov chaw morphology thiab cov yam ntxwv ntawm cov qauv. XRD tsom xam pab txheeb xyuas cov theem mineralogical tam sim no hauv cov qauv, muab kev nkag siab rau hauv arsenic qhov tshwm sim hauv lub cyanidation tailings.

tau

Cov kev sim flotation tau pom cov txiaj ntsig zoo kawg li. Cov qib sulfur nyob rau hauv cov concentrate tau mus txog ntau dua 48%, thaum qib arsenic tau ua tiav kom tsawg dua 0.2%. Cov txiaj ntsig no qhia txog kev ua tau zoo ntawm cov kev xaiv reagents thiab cov txheej txheem flotation optimized hauv kev ua tiav ob lub hom phiaj ntawm sulfur-hlau enrichment thiab tshem tawm arsenic.

kev sib tham

Lub Xeev ntawm Arsenic

Los ntawm SEM thiab XRD tsom xam, qhov tshwm sim ntawm arsenic hauv cyanidation tailings tau txiav txim siab. Arsenic tau pom tias muaj feem cuam tshuam nrog qee cov zaub mov, uas cuam tshuam nws tus cwj pwm thaum lub sijhawm flotation. Nkag siab txog qhov tshwm sim ntawm lub xeev no yog qhov tseem ceeb rau kev tsim cov phiaj xwm sib cais ntau dua.

Yog vim li cas rau kev sib cais nyuaj ntawm Sulfur thiab Arsenic

Txoj kev tshawb no kuj tau tshawb nrhiav ua ntej ntawm cov laj thawj tom qab qhov nyuaj ntawm kev sib cais ntawm sulfur thiab arsenic hauv cyanidation tailings. Cov yam ntxwv xws li kev nthuav tawm zoo ntawm cov khoom siv arsenic-cov kabmob, kev sib cuam tshuam ntawm cov ntxhia sib txawv, thiab cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov tailings tau ua rau qhov nyuaj no. Kev siv cov (H_2SO_4), sodium humate, thiab (Ca(ClO)_2) ua ke tau txo cov teeb meem no rau qee qhov, raws li pom los ntawm cov txiaj ntsig zoo flotation.

xaus

Txoj kev tshawb no tau ua tiav cov txheej txheem flotation rau enriching sulfur-hlau thiab tshem tawm arsenic los ntawm cyanidation tailings. Kev siv (H_2SO_4) ua cov tshuaj sulfur activator thiab kev sib xyaw ntawm sodium humate thiab (Ca(ClO)_2) ua cov tshuaj arsenic inhibitor ua pov thawj zoo. Kev soj ntsuam SEM thiab XRD tau muab cov kev nkag siab tseem ceeb rau hauv arsenic qhov tshwm sim ntawm lub xeev thiab cov laj thawj rau kev sib cais sulfur-arsenic nyuaj. Kev tshawb fawb yav tom ntej tuaj yeem tsom mus rau kev ua kom zoo dua cov txheej txheem flotation, tshawb nrhiav lwm cov reagents, thiab txhim kho tag nrho cov txiaj ntsig ntawm kev rov qab los thiab kev tiv thaiv ib puag ncig.