Sodium sulfide
Sodium sulfide yog ib qho activator ntawm non-ferrous hlau oxide ores, thiab thaum ntxiv cov nyiaj ntau txaus, nws yog ib qho inhibitor ntawm sulfide ores. Kev npaj ntawm sodium sulfide yog txo sodium sulfate (Na2SO4) los ntawm kev hlawv cov thee, ntoo charcoal, thiab lwm yam raws li kev txo cov pa roj. Cov qauv tshuaj tiv thaiv yog: Na2SO4+2C=Na2S+2CO2↑
Sodium sulfide yog siv los ua ib qho inhibitor ntawm sulfide ore hauv kev ua haujlwm flotation, sodium sulfide yog siv los inhibit pyrite nyob rau hauv kev xyaum ntau lawm ntawm molybdenum sib cais, thiab molybdenite yog flotated nrog kerosene raws li ib tug collector, vim lub zoo natural floatability ntawm molybdenite yog tsis inhibited. los ntawm sodium sulfide, sodium sulfide inhibits pyrite, thiab tsim nyog molybdenum concentrate yog tau tom qab ob peb xaiv.
Thaum sodium sulfide ntxiv rau slurry, slurry yog alkaline, uas ua rau saum npoo ntawm sulfide minerals tsim ib txheej ntawm hydrophilic hydroxide zaj duab xis thiab hydrophilic, thiaj li hais tias sulfide minerals yog inhibited.
Zinc sulfate
Kev npaj ntawm zinc sulfate yog npaj los ntawm cov tshuaj tiv thaiv ntawm zinc chips thiab dilute sulfuric acid nyob rau hauv cov hlau ua cov nroj tsuag. Zinc sulfate yog ib qho inhibitor ntawm sphalerite, cov nyhuv ntawm kev siv ib zaug tsis pom tseeb, thaum sib koom nrog alkali, sodium cyanide, sodium sulfite, thiab lwm yam, cov nyhuv inhibition muaj zog, thiab qhov siab dua pH tus nqi ntawm slurry, qhov zoo dua. cov nyhuv inhibition.
Ntshiab zinc sulfate tsis tig daj thaum khaws cia hauv huab cua ntev, thiab poob dej hauv huab cua qhuav los ua cov hmoov dawb. Muaj ntau hom hydrates: ib qho ruaj khov hydrate uas sib npaug nrog dej hauv thaj tsam ntawm 0-39 degree yog zinc sulfate heptahydrate, zinc sulfate 6 hydrate ntawm 39-60 degree , thiab zinc sulfate monohydrate ntawm {{3} } degree. Thaum rhuab mus rau 280 degree, ntau yam hydrates plam tag nrho lawv cov dej siv lead ua, decompose rau zinc oxide sulfate ntawm 680 degree, ntxiv decompose saum 750 degree, thiab thaum kawg decompose rau zinc oxide thiab sulfur trioxide ntawm txog 930 degree. ZnSO4·7H2O thiab MSO4·7H2O(M=Mg, Fe, Mn, Co, Ni) tsim cov muaju sib xyaw ua ke nyob rau hauv ib qho chaw. Nws reacts nrog alkali los tsim zinc hydroxide precipitate, thiab reacts nrog barium ntsev los tsim barium sulfate precipitate.
Kev ua haujlwm ntawm zinc sulfate: nws yog cov khoom siv tseem ceeb rau kev tsim cov zinc barium dawb thiab zinc ntsev, thiab tseem tuaj yeem siv los ua luam ntawv thiab dyeing mordant, preservative rau ntoo thiab tawv, thiab ib qho tseem ceeb auxiliary raw khoom rau lub Kev tsim cov viscose fiber ntau thiab vinylon fiber ntau. Tsis tas li ntawd, nws kuj tseem siv tau rau hauv kev lag luam electroplating thiab electrolysis, thiab tseem tuaj yeem siv los ua cov cables. Zinc sulfate inhibits sphalerite.
Cov dej txias yog cov dej loj tshaj plaws uas siv hauv kev lag luam. Cov dej txias hauv qhov kaw qhov cua txias tsis tuaj yeem corrode thiab ntsuas cov hlau, yog li nws raug kho, thiab cov txheej txheem no hu ua dej zoo stabilization, qhov twg zinc sulfate yog siv los ua dej zoo stabilizer.
Sodium cyanide (poov tshuaj)
Thaum txoj kev nyiam flotation yog siv rau polymetallic deposits, sodium cyanide yog siv los inhibit sulfide minerals xws li pyrite, sphalerite, chalcopyrite, thiab lwm yam., thiab kev sib xyaw ntawm sodium cyanide thiab zinc sulfate muaj ib tug zoo heev inhibition nyhuv ntawm sphalerite, pyrite. thaum tus nqi ntawm sodium cyanide me me, sphalerite tuaj yeem inhibited thaum tus nqi loj me ntsis, thiab ntau yam tooj liab sulfide minerals tuaj yeem inhibited thaum tus nqi nce.
Nyob rau hauv kev xyaum ntau lawm, vim yog toxicity ntawm sodium cyanide, sulfur dioxide los yog sodium sulfite feem ntau siv es tsis txhob, sulfur dioxide thiab sodium sulfite muaj zog inhibition nyhuv tshaj sodium cyanide, tab sis vim tsis tshua muaj toxicity thiab yooj yim rau oxidized los ntawm huab cua, dej khib nyiab. yog ib qho yooj yim kho thiab feem ntau siv. Lwm qhov zoo dua yog tias cov zaub mov inhibited los ntawm sulfur dioxide thiab sodium sulfite tau yooj yim qhib los ntawm tooj liab sulfate, thaum cov zaub mov inhibited los ntawm sodium cyanide yog qhov nyuaj rau qhib.
Txiv qaub
Txiv qaub inhibition ntawm pyrite: Txiv qaub inhibits pyrite vim tsim cov hydrate films ntawm calcium sulfate, calcium carbonate thiab calcium oxide ntawm nws nto.
Txhawm rau qhib pyrite inhibited los ntawm txiv qaub, sodium carbonate thiab tooj liab sulfate tuaj yeem siv tau, lossis sulfuric acid tuaj yeem ntxiv kom txo qis pH tus nqi ntawm slurry rau 6 ~ 7, thiab butyl xanthate tuaj yeem ntxiv rau flotation pyrite.
Quicklime yog lub pob zeb ntuj uas muaj calcium carbonate, calcined ntawm qhov kub thiab txias, thiab nws cov khoom tseem ceeb yog calcium oxide (CaO). Vim tsis sib xws los yog kub tswj thaum lub sij hawm calcination, nws feem ntau muaj nyob rau hauv-flint txiv qaub los yog over-flint txiv qaub. Lub pulp tawm los ntawm cov txiv qaub hauv qab yog me me, qhov zoo yog qhov tsis zoo, thiab kev siv tus nqi txo, uas yuav tsis ua rau muaj kev phom sij. Lub hydration ntawm cov txiv qaub hlawv yog qeeb heev, thiab cov tshuaj tiv thaiv hydration nrog cov dej tshwm sim tsuas yog tom qab hardening, ua rau lub ntim loj nthuav, ua rau hauv zos bulging thiab tawg rau ntawm qhov chaw ntawm cov txiv qaub hardened, uas yog hu ua "ashes. blasting" hauv engineering. "Tshauv blasting" yog ib qho teeb meem tshwm sim nyob rau hauv qhov zoo ntawm kev tsim kho tej yaam num.
Cov txheej txheem los ntawm cov kua qaub sai sai nrog dej los tsim cov txiv qaub loj (Ca(OH)2) hu ua curing. Nyob rau hauv qhov project, ib tug loj npaum li cas ntawm cov dej (2 ~ 3 lub sij hawm qhov zoo ntawm quicklime) yog matured rau hauv txiv qaub kua mis, thiab ces ntws mus rau hauv lub tshauv cia tank los ntawm lub screen thiab "stabilizes" rau tsawg kawg yog ob lub lis piam los tshem tawm cov kev puas tsuaj overburned txiv qaub, thiab muab tshuaj txhuam tau los ntawm kev tshem tawm cov dej ntau dhau los ntawm nag lossis daus yog txiv qaub paste. Nws tseem tuaj yeem nchuav dej kom tsim nyog (60% ~ 80% ntawm cov nyiaj ceev ceev) ntawm txhua ib nrab meter siab nrawm nrawm, thiab cov hmoov tau los ntawm kev kho yog hu ua slaked txiv qaub hmoov. Nws yog ib advisable mus ntxiv dej rau slaked txiv qaub hmoov me ntsis ntub, tab sis tsis mus rau hauv ib tug clump.
Lub luag haujlwm ntawm txiv qaub: txiv qaub muaj cov dej tuav zoo thiab cov yas, thiab feem ntau yog siv los txhim kho cov dej tuav ntawm mortar hauv engineering kom kov yeej qhov tsis zoo ntawm cov dej tsis zoo ntawm cov cement mortar. Txiv qaub muaj cov nyhuv inhibitory ntawm pyrite. Txiv qaub muaj ib tug qeeb condensation thiab hardening tus nqi, tsis tshua muaj zog thiab tsis zoo dej kuj. Lub drying shrinkage ntawm txiv qaub yog loj, yog li nws yuav tsum tsis txhob siv ib leeg tsuas yog rau stucco.