Antimony yog silvery dawb, nkig metalloid nrog lub rhombohedral (hexagonal) siv lead ua qauv, Mohs hardness txog 3, lub melting point ntawm 630 degree, ib tug ceev ntawm txog 6.62 g / cm³, thiab tsis zoo thermal thiab hluav taws xob conductivity. Nws cov qauv molecular yog Sb, nws tus lej CAS yog 7440-36-0, thiab cov hlau antimony yog cais raws li kev lis kev cai code 811010. Cov khoom no - thermal conductivity tsawg, ib qho qis melting point rau cov hlau hnyav, thiab muaj lub siab nyiam oxidise - piav qhia vim li cas antimony ingots ntau dua cov txheej txheem uas tsis yog hlau.
Antimony kuj yog lub hauv paus ntawm tsev neeg tshuaj lom neeg loj. Antimony trioxide (Sb2O3) yog cov nplaim hluav taws-cov nplaim hluav taws xob feem ntau ua rau qis qis, thiab antimony yog siv lead ua-acid roj teeb daim phiaj thiab alloys, bearing thiab hom hlau, cable sheathing, semiconductors thiab iav clarifiers. Txhua txoj hauv kev no pib nrog qhov raug melted, raug cam khwb cia ingot, yog li cov kev ceev faj hauv qab no tsim nyog kho raws li cov txheej txheem uas yuav tsum tau ua es tsis yog kev xaiv zoo.
Qib xaiv thiab tshuaj lom neeg txwv
Kev lag luam antimony ingots yog pauv nyob rau hauv ib qib theem ntaiv. Cov qib siab dua muaj kev txwv nruj dua ntawm arsenic, lead, hlau, tooj liab, selenium, bismuth, cadmium, tellurium, sulfur thiab tin, thiab cov qib yuav tsum raug xaiv rau qhov kawg daim ntawv thov: siab -purity Sb-00 thiab Sb-0 rau cov nplaim hluav taws xob thiab siv hluav taws xob, Sb-1 thiab cov khoom siv dav dav. Cov kev txwv siab tshaj plaws impurity yog qhia hauv qab no.
| Element / txwv | SIB-00 | Sb-0 | Sb-1 | Sb-2 |
|---|---|---|---|---|
| Sb % min | 99.95 | 99.9 | 99.85 | 99.65 |
| Raws li % max | 0.01 | 0.03 | 0.05 | 0.1 |
| Pb % max | 0.01 | 0.05 | 0.1 | 0.2 |
| Fe% max | 0.003 | 0.01 | 0.015 | 0.02 |
| Cu% max | 0.003 | 0.01 | 0.01 | 0.015 |
| Se % max | 0.0015 | 0.003 | 0.004 | 0.005 |
| % max | 0.003 | 0.005 | 0.01 | 0.03 |
| Cd % max | 0.0005 | 0.001 | 0.001 | 0.0015 |
| Tau % max | 0.0015 | 0.003 | 0.005 | 0.005 |
| S% max | 0.005 | 0.008 | 0.04 | 0.06 |
| Sn% max | 0.0015 | 0.003 | 0.003 | 0.003 |
Kev Nyab Xeeb: Melt Temperature, Fume thiab Stibine Risk
Kev ua haujlwm antimony suav nrog siab - kub thiab, hauv qee txoj kev, siab - cov cuab yeej siv siab. Molten antimony ntawm 630℃thiab saum toj no yuav hlawv tus neeg teb xov tooj hnyav, thiab cov khoom ntub dej los yog cov khoom ntub dej nkag mus rau hauv cov yaj tuaj yeem ua rau lub zog tawg, yog li cov khoom noj yuav tsum qhuav, preheated thiab them qeeb. Crucibles, ladles thiab pwm yuav tsum tau ua ntej- qhuav ua ntej kev sib cuag nrog kua hlau.
Plua plav thiab fume tswj yog tus ncej ruaj ntseg thib ob. Antimony thiab nws cov tebchaw, tshwj xeeb tshaj yog antimony trioxide, muaj kev phom sij los ntawm kev nqus pa, thiab kev ua haujlwm xws li crushing, sib tsoo, dross tuav thiab slag skimming tsim cov khoom zoo. Kev tso pa tawm hauv zos, cov ntsiab lus hloov chaw, kev tiv thaiv kev ua pa kom raug thiab kev saib xyuas huab cua niaj hnub yuav tsum tau ua, ua ke nrog kev soj ntsuam kab mob lom lossis tso zis nyob qhov twg raug tsis tu ncua. Ib qho thib peb, tsis tshua pom kev txaus ntshai yog stibine (SbH3), cov pa roj uas muaj kuab lom heev uas tuaj yeem tsim tau thaum antimony- cov khoom muaj peev xwm ua tau raws li cov tshuaj hydrogen - piv txwv li hauv acidic pickling los yog damp, txo cov residues. Kev sib cuag nrog cov tshuaj tiv thaiv antimony yuav tsum raug zam thiab cov chaw kaw yuav tsum yog cov pa roj- kuaj ua ntej nkag.
Purity Control: Raw Khoom, Slagging thiab Casting
Purity yog lub plawv lag luam ntawm antimony ingot ua. Thawj kauj ruam yog pub: xaiv cov khoom siv raw khoom thiab huv si, ib qho - qhov chaw seem tiv thaiv kev nkag ntawm cov hlau lead, tooj liab, hlau thiab bismuth uas raug nqi kom tshem tawm tom qab. Qhov thib ob qib yog smelting thiab refining kauj ruam, qhov twg fluxing thiab slagging xyaum, tuav lub sij hawm thiab kub txiav txim siab npaum li cas ntawm arsenic, sulfur thiab hlau yog pauv mus rau lub slag es tsis khaws cia nyob rau hauv cov hlau.
Qhov thib peb qib yog casting. Melt superheat yuav tsum tau khaws cia kom tsawg raws li cov pwm huv si, vim tias superheat ntau dhau ua rau oxidation losses thiab dross tiam. Casting kub, pwm preheat, pwm txheej thiab txias tus nqi ua ke tswj ingot nto zoo, shrinkage kab noj hniav tsim thiab sab hauv soundness. Casting rau hauv huv, me ntsis preheated pwm thiab tswj lub solidification pem hauv ntej muab ingots uas tuab, tsis muaj deg laps, thiab zoo ib yam nyob rau hauv qhov hnyav - cov khoom downstream remelters xav tau. Ingots kuj tseem tuaj yeem tsim los ntawm hammering lossis lwm yam khoom siv uas yuav tsum muaj qhov loj me, duab lossis kev cai geometry, nrog rau txoj kev xaiv raws li cov khoom lag luam thiab cov neeg siv khoom kos duab.
Environmental Protection thiab Off-Gas Handling
Antimony smelting thiab casting tsim cov pa khib nyiab, plua plav, slag thiab dej khib nyiab, txhua yam yuav tsum tau kho raws li qhov yuav tsum tau ua ntawm ib puag ncig. Cov kev ntsuas muaj xws li hooded rauv thiab ladle chaw nres tsheb, baghouse los yog cartridge filtration ntawm txheej txheem tawm - pa roj, ntub dej txhuam qhov twg sulfur dioxide los yog halides nyob, kaw - voj dej txias, thiab tswj pov tseg los yog rov qab los ntawm antimony - bearing residues. Rov qab los ntawm cov khoom pov tseg thiab cov slag es tsis yog qhov chaw pov tseg nws txo cov nqi ib puag ncig thiab cov khoom siv raw, thiab nws yog ib feem ntawm kev ua haujlwm zoo -khiav antimony.
Cov khoom siv tu thiab ruaj khov ntau lawm
Antimony ingot ua cov cuab yeej raug kub siab, abrasive dross thiab corrosive flue gas, yog li kev saib xyuas tsis tuaj yeem ua haujlwm. Kev tshuaj xyuas tsis tu ncua ntawm crucibles thiab refractory linings, thermocouple thiab kub - tswj calibration, xyuas cov pwm pwm thiab pwm txheej, ntxuav cov pa ducts thiab lim, thiab teem sij hawm hloov cov khoom hnav ua kom cov txheej txheem txhim khu kev qha thiab tiv thaiv cov khoom chemistry los ntawm kev sib kis los ntawm cov khoom siv hnav.
Zoo -khiav cov nroj tsuag sau qhov kub thiab txias, tuav lub sij hawm, flux ntxiv thiab casting tej yam kev mob rau txhua qhov cua sov. Cov ntaub ntawv ntawd yog dab tsi ua rau purity thov tiv thaiv thiab qhov tso cai rau cov nroj tsuag kom rov tsim dua qib xws li 99.65%, 99.85% lossis 99.90% antimony ingot tsis tu ncua los ntawm batch rau batch.
FAQ: Antimony Ingot Processing
Q: Dab tsi yog qhov melting point thiab ntom ntawm antimony ingot?
Antimony melts ntawm kwv yees li 630℃thiab muaj qhov ntom ntawm li 6.62 g / cm³, nrog rau Mohs hardness txog 3 thiab ib tug silvery dawb, nkig tsos.
Q: Vim li cas cov khoom siv antimony yuav tsum qhuav ua ntej them?
Cov dej ntub dej los yog cov khoom ntub dej hauv kev sib cuag nrog molten antimony flashes rau chav explosively, pov hlau tawm ntawm lub crucible; ziab thiab tswj kev them nyiaj yog cov kauj ruam tseem ceeb ntawm kev nyab xeeb.
Q: Yuav ua li cas yog antimony ingot purity tswj thaum lub sij hawm ua?
Los ntawm kev xaiv cov ntaub ntawv huv si, tswj cov fluxing thiab slagging kom tsis kam lees arsenic thiab sulphur, txwv cov yaj superheat, thiab casting hauv huv, preheated pwm nyob rau hauv ib tug ruaj khov txias tswj.
Q: Dab tsi yog qhov tseem ceeb ntawm kev tswj hwm kev ua haujlwm antimony?
Hooded rauv thiab casting chaw nres tsheb, baghouse plua plav sau, ntub dej txhuam ntawm acidic tawm- roj, kaw cov dej txias circuits, thiab rov qab los yog tswj pov tseg ntawm antimony- bearing dross thiab slag.
Q: Dab tsi yog stibine thiab vim li cas nws tseem ceeb?
Stibine (SbH3) yog cov pa roj uas muaj kuab lom heev uas tuaj yeem tsim tau thaum antimony-cov khoom siv tiv tauj nrog cov tshuaj hydrogen, yog li kev sib cuag nrog cov tshuaj tiv thaiv antimony yuav tsum tau zam thiab txwv qhov chaw gas- kuaj.
Q: Qhov twg antimony ingot qib feem ntau muab?
Antimony ingots yog ib txwm muab raws li Sb-00, Sb-0, Sb-1 thiab Sb-2, nrog tsawg kawg nkaus antimony ntsiab lus ntawm 99.95%, 99.9%, 99.85% thiab 99.65% feem.