Cov ntsiab lus ntawm cov txhuas thiab cov neeg sawv cev

1. Lead thiab Zinc Flotation Collector

Feem ntau siv cov neeg sau rau cov txhuas-zinc ores muaj:

1. Xanthate. Hom neeg sawv cev no suav nrog Xanthathe, Xanthaate Ester, thiab lwm yam.

2. Sulphur nitrogen, xws li Ethyl sulfur nitrogen, muaj cov peev xwm muaj zog dua li xasthate. Nws muaj cov peev xwm sau muaj zog rau galena thiab chalcoprite, tab sis tsis muaj zog los sau pyrite, zoo frolotation ceev, thiab tsawg dua ntau dua xasthate. Nws muaj lub zog sib sau rau cov coarse ntawm sulfide ore. Thaum nws tau siv rau kev xaiv cov tooj liab-lead-sulfur tshwj xeeb ores, nws tuaj yeem tau txais kev cuam tshuam zoo dua li xasthate.

3.black tshuaj

Cov hmoov dub yog qhov ua tau zoo sau ntawm sulfide ores, thiab nws lub peev xwm sib sau yog tsis muaj zog dua li xasthate. Cov khoom siv solubility ntawm dhihydrrocarbyl dithiophosphate ntawm tib cov hlau ion yog loj dua li ntawm xasthate ntawm cov ion. Cov tshuaj dub tau ua npuas dej zoo nkauj.

Feem ntau siv cov hmoov nplej dub hauv kev lag luam suav nrog: No. 25 dub hmoov, butylammon hmoov zoo, thiab naphthenic hmoov hmoov. Ntawm lawv, Butylammonium hmoov (Dibutyl ammonium dithiophetphate) yog cov hmoov dawb, yooj yim sols tom qab tshem tawm cov khoom ntiag tug. Nws yog qhov haum rau kev flotation ntawm sulfide ees xws li tooj liab, txhuas, zinc, thiab npib tsib. Cov. Nyob rau hauv weakly alkaline slurry, lub peev xwm sib sau ntawm pyrite thiab pyrrotite tsis muaj zog, tab sis kev sib sau muaj peev xwm ntawm galena muaj zog.

2. Lead thiab Zinc Flotation Regulator

Raws li lawv lub luag haujlwm hauv cov txheej txheem frolotation, cov neeg kho tuaj yeem faib ua: inibitors, cov kev hloov kho av uas tsis yog, couime dispersants, coagulants thiab rov ua neeg.

Cov neeg kho tau xws li ntau cov inorganic sib txuas (xws li ntsev, cov hauv paus thiab kua qaub) thiab cov organic sib xyaw. Tib tus neeg sawv cev feem ntau ua yeeb yam sib txawv raws li cov huab vog sib txawv.

Inhibitors:

1. Txiv qaub txiv qaub (cao) muaj cov dej nqus dej muaj zog thiab cuam tshuam nrog dej los ua cov txiv qaub hydrated ca (Oh) 2. Nws yog qhov nyuaj kom yaj hauv dej thiab yog ib tug muaj zog alkali. Cov tshuaj tiv thaiv thaum ntxiv rau cov flotation slurry yog raws li hauv qab no:

CAO + H2O = CA (OH) 2

Ca (huag) 2 = caoh ++ Oh-

CaOh + = ca2 ++ 0h-

Cov kua qaub feem ntau siv los ua kom muaj tus nqi ntawm tus cwj pwm ntawm cov slurry thiab inhibit hlau cov zaub mov. Nyob rau hauv tooj liab sulfide, txhuas, thiab zinc ores, thiab feem ntau nrog hlau sulfide, pyrrotite, mycasite, thiab pyroarsenite (xws li arsenopyrite)). Txhawm rau kom zoo flotate tooj liab, txhuas, thiab zinc cov zaub mov, txiv qaub yog feem ntau ntxiv rau cov txiv ntoo soulfide.

2. Cyanide (Nacn, Kcn)

Cyanide yog cov neeg ua haujlwm ua haujlwm tau thaum lub sij hawm txhuas thiab zinc sorting. Cyanide feem ntau yog sodium cyanide thiab poov tshuaj cyascide, thiab cyilium cyanide tseem siv.

Cyanide yog cov ntsev hluav taws xob tsim los ntawm cov zog muaj zog thiab cov kua qaub tsis muaj zog. Nws yog hydrolyzed nyob rau hauv lub slurry los tsim HCN thiab cn-

Kcn = k ++ cn-

CN + H2O = HCN ++ OH-

Nws tuaj yeem pom los ntawm qhov sib npaug saum toj no uas nyob rau hauv Alkaline slurry, kev sib haum xeeb ntawm CN- nce, uas tau txais txiaj ntsig zoo rau kev txwv. Yog tias cov pH raug txo qis, hcn (hydrocyanic acid) yog tsim thiab cov nyhuv inisabities yog txo. Yog li ntawd, thaum siv cyanide, lub alkaline xwm ntawm slurry yuav tsum tau tswj.

3.Zias sulfate

Cov khoom ntshiab ntawm zinc sulfate yog dawb crystal, yooj yim soluble hauv dej, thiab yog ib tug inhibitor ntawm sphalerite sphalerite. Feem ntau nws muaj kev cuam tshuam cuam tshuam tsuas yog hauv alkaline slurry. Qhov siab tshaj li cov pH ntawm slurry, qhov pom tseeb ntau dua nws txoj hauv kev tiv thaiv. Zinc Sulfate ua cov tshuaj tiv thaiv hauv qab no hauv dej:

ZSO4 = ZN2 ++ so42-

ZN2 ++ 2H20 = ZN (Huag) 2 + 2h +

ZN (Huag) 2 yog ib qho amphoteric compound uas yaj hauv acid los ua ntsev.

ZN (Huag) 2 + h2s04 = Zso4 + 2h2o

Hauv nruab nrab alkaline, hzno2- thiab zno22- tau txais. Lawv adsorption rau cov ntxhia kom txhim kho lub hydrophilicity ntawm cov ntxhia npoo.

ZN (Huag) 2 + NAOH = Nahzno2 + H2O

ZN (Huag) 2 + 2NNOH = NA2ZNO2 + 2H2O

Thaum zinc sulfate yog siv nyob ib leeg, lub inisence inks yog neeg pluag. Nws feem ntau yog siv rau hauv kev sib xyaw nrog cyanide, sodium sulfide, sulfite lossis thiosulfate, sodium carbonate, thiab lwm yam.

Cov kev siv ua ke ntawm zinc sulfate thiab cyanide tuaj yeem txhim kho cov kev txwv tsis pub muaj txiaj ntsig ntawm sphaalerite. Cov zauv feem ntau siv yog: cyanide feem ntau: zinc sulfate = 1: 2-5. Nyob rau lub sijhawm no, CN- thiab ZN2 + Form colloidal Zn (CN) 2 nag lossis daus.