Daim ntawv thov ntawm Sodium Hexametaphosphate hauv Mineral Flotation

Introduction

Mineral flotation yog ib txoj hauv kev siv dav hauv kev lag luam mining kom cais cov zaub mov muaj txiaj ntsig los ntawm gangue minerals. Nws tso siab rau qhov sib txawv ntawm lub cev thiab tshuaj lom neeg ntawm cov pob zeb hauv av. Sodium hexametaphosphate, nrog nws cov qauv tshuaj tshwj xeeb thiab cov khoom, tau pom cov ntawv thov tseem ceeb hauv Mineral flotation txheej txheem. Qhov tsab xov xwm no delves rau hauv ntau yam ntawm nws siv nyob rau hauv ntxhia flotation.

Cov khoom ntawm Sodium Hexametaphosphate

Sodium hexametaphosphate yog ib qho inorganic polymer compound. Nws zoo nkaus li tsis muaj xim tsis muaj pob tshab siv lead ua lossis hmoov dawb. Nws yog heev soluble nyob rau hauv dej, thiab nws cov aqueous tov yog alkaline. Nyob rau hauv cov huab cua, nws muaj ib tug tej yam degree ntawm hygroscopicity. Cov khoom siv lub cev thiab tshuaj lom neeg no nteg lub hauv paus rau nws txoj haujlwm hauv cov ntxhia flotation.

Lub luag haujlwm hauv Mineral Flotation

Nyuaj Siab

1.Inhibition ntawm silicate thiab Carbonate Minerals

• Sodium hexametaphosphate muaj txiaj ntsig zoo hauv inhibiting quartz thiab silicate minerals. Nyob rau hauv lub flotation ntawm ib co ores, xws li cov uas muaj feldspar thiab mica, nws muaj peev xwm adsorb nyob rau saum npoo ntawm cov minerals silicate. Piv txwv li, nyob rau hauv flotation ntawm zirconium ores, nws yuav txo tau lub floatability ntawm feldspar txuam nrog lwm yam silicate gangue minerals los ntawm adsorbing rau ntawm lawv qhov chaw.

• Nws kuj qhia txog cov teebmeem inhibitory rau carbonnoj cov zaub mov zoo li calcite thiab limestone. Hauv kev sib xyaw ntawm cov phosphate ores qhov twg calcite yog cov zaub mov gangue feem ntau, sodium hexametaphosphate tuaj yeem cuam tshuam nrog calcium ions ntawm qhov chaw calcite. Nws tsim cov tebchaw ruaj khov uas ua rau kom cov hydrophilicity ntawm calcite nto, ua rau nws tsis tshua muaj kev sib txuas los ntawm tus neeg sau, yog li ua tiav lub hom phiaj ntawm inhibition.

2.Inhibition Mechanism

• Ib qho ntawm cov txheej txheem inhibition tseem ceeb yog cuam tshuam nrog nws cov tshuaj tiv thaiv nrog cov hlau ions ntawm cov pob zeb hauv av. Thaum nws los txog rau cov zaub mov uas muaj ntau cov hlau ions, sodium hexametaphosphate tuaj yeem tsim cov tebchaw ruaj khov nrog cov hlau ions. Hauv nickel ore flotation, nws reacts nrog cov ions tshwj xeeb rau ntawm qhov chaw ntawm serpentine, uas inhibits flotability ntawm serpentine.

• Tsis tas li ntawd, nyob rau hauv cov tshuaj aqueous, sodium hexametaphosphate tuaj yeem ionize. Nws tuaj yeem hnov ​​​​mob nrog calcium ions hauv cov pob zeb hauv av thiab cov theem ua kua. Nyob rau hauv kev sib cais ntawm calcite thiab cassiterite, lub compound tsim nyob rau hauv lub calcite nto tsis tsuas yog cuam tshuam cov calcite tab sis kuj yuav adsorb nyob rau hauv lub cassiterite nto, txo cov xaiv ntawm inhibition thiab txo cov adsorption ntawm lub collector ntawm cov pob zeb hauv av.

Dispersant

1.Dispersion ntawm Mineral Pulp

• Hauv cov txheej txheem flotation, tshwj xeeb tshaj yog rau qee cov ores nrog nplua - grained minerals los yog siab - av nkos - cov ntsiab lus ore, dispersion ntawm cov pob zeb hauv av yog qhov tseem ceeb. Sodium hexametaphosphate tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua kom tawg. Piv txwv li, nyob rau hauv lub flotation ntawm npib tsib xee - pyrite ores txuam nrog serpentine, ntxiv ib tug tsim nyog tus nqi ntawm sodium hexametaphosphate yuav disperse lub flotation pulp. Qhov no yog vim hais tias nws txo cov kev pab them nqi ntawm serpentine nyob rau saum npoo ntawm npib tsib xee - pyrite, uas yog zoo rau lub flotation rov qab ntawm nickel - pyrite.

2.Dispersion Mechanism

• Sodium hexametaphosphate tuaj yeem txo qhov peev xwm ntawm cov zaub mov. Yog li ntawd, lub zog electrostatic repulsive ntawm cov pob zeb hauv av nce. Nws cov qauv molecular, linear polymer compound nrog cov saw ntev ntawm tsawg kawg 20 - 100 units, thaum adsorbed ntawm cov pob zeb hauv av, tuaj yeem ua rau muaj kev cuam tshuam tsis zoo ntawm cov khoom. Nyob rau hauv lub flotation ntawm ib co nplua - grained phosphate ores, no dispersion nyhuv tuaj yeem tiv thaiv cov aggregation ntawm phosphate thiab gangue minerals, txhim kho kev sib cais efficiency.

Daim ntawv thov nyob rau hauv txawv Mineral Flotation

Phosphate Ore Flotation

1.Kev sib cais

• Hauv phosphate ore flotation, sodium hexametaphosphate feem ntau yog siv los cais cov phosphate minerals los ntawm gangue minerals. Phosphate ores feem ntau txuam nrog ntau yam kab mob gangue xws li calcite, dolomite, thiab silicate minerals. Sodium hexametaphosphate tuaj yeem xaiv inhibiting gangue minerals. Hauv cov txheej txheem rov qab flotation ntawm qee cov phosphate ores, ntxiv me me ntawm sodium hexametaphosphate tuaj yeem ua kom cov qib thiab rov qab los ntawm phosphate concentrate. Nws tuaj yeem hnov ​​​​mob nrog cov zaub mov tsis-phosphate yam tsis muaj kev cuam tshuam nrog cov zaub mov phosphate, yog li txhim kho cov kev xaiv ntawm phosphate ntxhia flotation.

2.Effect ntawm Foam Stability

• Nws kuj tseem muaj kev cuam tshuam rau kev ua npuas ncauj ruaj khov hauv phosphate ore flotation. Cov npuas dej hauv cov txheej txheem flotation plays lub luag haujlwm hauv kev sau cov phosphate minerals. Sodium hexametaphosphate tuaj yeem txhim kho kev ruaj ntseg ntawm cov npuas dej. Nws tuaj yeem tsim kom muaj ntau cov foams ruaj khov, uas yuav pab txhim kho cov txiaj ntsig ntawm phosphate minerals. Cov zaub mov phosphate tuaj yeem nqa tau zoo dua los ntawm cov npuas ruaj khov rau saum npoo, yog li txhim kho cov flotation efficiency thiab qib.

Non-ferous Hlau Ore Flotation

1.Nickel Ore Flotation

• Raws li tau hais ua ntej, hauv nickel ore flotation, sodium hexametaphosphate feem ntau yog siv los inhibit serpentine. Serpentine yog ib hom kab mob gangue hauv nickel ores, thiab nws lub xub ntiag tuaj yeem cuam tshuam rau flotation ntawm nickel - bearing minerals. Los ntawm kev ntxiv sodium hexametaphosphate, nws tuaj yeem hnov ​​​​mob nrog cov hlau ions ntawm lub serpentine nto, txo nws cov floatability thiab txhim kho kev sib cais ntawm npib tsib xee - bearing minerals los ntawm serpentine. Qhov no muaj txiaj ntsig zoo rau kev txhim kho qib thiab rov qab los ntawm nickel concentrates.

2.Copper thiab Lead - Zinc Ore Flotation

• Nyob rau hauv tooj liab thiab txhuas - zinc ore flotation, thaum muaj cov calcium uas txuam nrog gangue minerals xws li calcite thiab dolomite, sodium hexametaphosphate yuav siv tau los inhibit cov gangue minerals. Nyob rau hauv ib co complex tooj liab - lead - zinc ores, kho tus nqi ntawm sodium hexametaphosphate tau zoo tswj lub floatability ntawm gangue minerals, txhim kho cov xaiv ntawm flotation thiab zoo ntawm tooj liab, txhuas, thiab zinc concentrates.

Cov yam ntxwv cuam tshuam rau daim ntawv thov cuam tshuam

ntau npaum

1.Qhov kev txiav txim siab npaum li cas

• Qhov ntau npaum ntawm sodium hexametaphosphate muaj qhov cuam tshuam loj rau nws qhov kev ua tau zoo hauv cov ntxhia flotation. Kev noj tshuaj tsis tsim nyog yuav ua rau muaj txiaj ntsig zoo. Yog tias qhov ntau npaum li cas tsawg dhau, nws yuav tsis zoo inhibit gangue minerals lossis disperse lub pulp. Piv txwv li, nyob rau hauv phosphate ore flotation, yog hais tias tus nqi ntawm sodium hexametaphosphate ntxiv yog tsis txaus, gangue minerals tej zaum yuav tsis zoo - inhibited, ua rau ib tug qis qib ntawm phosphate concentrate.

• Ntawm qhov tod tes, yog tias qhov ntau npaum li cas, nws yuav tsis tsuas yog nce nqi tab sis kuj ua rau qee qhov tsis zoo. Qee qhov xwm txheej, ntau dhau ntawm sodium hexametaphosphate kuj tseem tuaj yeem cuam tshuam lub hom phiaj cov zaub mov rau qee qhov, txo tus nqi rov qab. Yog li ntawd, kev txiav txim siab qhov zoo tshaj plaws npaum li cas los ntawm kev sim kev tshawb fawb thiab ntawm - qhov chaw debugging yog qhov tseem ceeb rau kev ua tiav qhov zoo tshaj plaws flotation.

pH Tus nqi ntawm Pulp

2.Influence ntawm Tshuaj Reactions

• Tus nqi pH ntawm flotation pulp cuam tshuam cov tshuaj tiv thaiv ntawm sodium hexametaphosphate. Hauv qhov sib txawv pH ib puag ncig, ionization degree thiab tshuaj lom neeg daim ntawv ntawm sodium hexametaphosphate yuav hloov. Nyob rau hauv ib puag ncig acidic, nws cov nyhuv inhibitory ntawm qee cov zaub mov yuav tsis muaj zog. Nyob rau hauv ib puag ncig alkaline heev, nws yuav hnov ​​​​mob nrog lwm yam khoom hauv lub cev, cuam tshuam rau nws txoj haujlwm ib txwm muaj. Piv txwv li, nyob rau hauv lub flotation ntawm ib co tooj liab - lead - zinc ores, tswj ib tug tsim nyog pH nqi (feem ntau nyob ib ncig ntawm 8 - 10) yuav xyuas kom meej tias sodium hexametaphosphate zoo inhibits gangue minerals thiab txhawb lub flotation ntawm lub hom phiaj minerals.

xaus

Sodium hexametaphosphate plays ntau lub luag haujlwm tseem ceeb hauv cov ntxhia flotation, suav nrog Nyuaj Siab thiab ib tug dispersant. Nws daim ntawv thov nyob rau hauv ntau hom pob zeb hauv av flotation, xws li phosphate ore thiab non-ferrous hlau ore flotation, tau txhim kho kev ua tau zoo thiab zoo ntawm cov ntxhia sib cais. Txawm li cas los xij, kom ua tiav nws lub peev xwm, yam xws li kev siv tshuaj thiab cov pH pH yuav tsum tau ua tib zoo tswj. Nrog rau kev txhim kho txuas ntxiv ntawm kev lag luam mining, kev tshawb fawb ntxiv ntawm kev siv sodium hexametaphosphate hauv cov ntxhia flotation tuaj yeem ua rau muaj txiaj ntsig zoo thiab muaj txiaj ntsig zoo ntawm cov ntxhia ua cov txheej txheem.