Chromium Ore Los ntawm Iranian Lub Tebchaws

Iran yog ib lub ntiaj teb 20 tus tsim cov hlau loj tshaj plaws, kev lag luam loj tshaj plaws nyob rau hauv Middle East, tab sis qib ntawm kev vam khom rau cov khoom siv hlau yog siab heev, tsoomfwv Iranian cia siab tias yuav txo qis kev lag luam, thiab tab tom sim nyiam cov peev txheej txawv teb chaws hauv kev lag luam. steel kev lag luam, tab sis nws tsis zoo li muaj txiaj ntsig zoo. Iran tseem yog cov neeg siv khoom loj ntawm cov hlau, nrog rau qhov nruab nrab txhua xyoo noj ze li ntawm 17 lab tons. Iran lub tsev steelmaking thiab dov muaj peev xwm ua tau raws li ib nrab ntawm nws cov kev xav tau, tab sis nws tseem yog cov loj tshaj plaws steel tsim nyob rau hauv Middle East thiab North Africa, ua ntau tshaj li tim lyiv teb chaws, lub thib ob loj tshaj plaws steel tsim nyob rau hauv Middle East los ntawm cov pejxeem.

Xa kev nug

Khoom Taw qhia

Khoom Description

Iran muaj ntau cov roj reserves thiab cov khoom siv roj av uas tsim nyog rau kev tsim cov hlau txo qis ncaj qha. Iran yog lub ntiaj teb thib ob loj tshaj plaws tsim cov hlau ncaj qha txo qis tom qab Is Nrias teb, nrog ncaj qha txo cov hlau ntau lawm ntawm 7.4 lab tons hauv 2008, thiab ncaj qha txo hlau / hluav taws xob rauv steelmaking txheej txheem yog cov txheej txheem hlau tseem ceeb hauv Iran. Qhov sib txawv ntawm Iran lub peev xwm steelmaking thiab kev thov rau cov hlau tiav yog maj mam ua tiav los ntawm lub teb chaws dov mills, uas import ntau ntawm cov billets txhua xyoo los tsim cov khoom ntev.

►Kev tshawb pom ntawm chromium ore

Xyoo 1797, Vauceland, Fab Kis, tau thov chromium trioxide los ntawm cov khoom ntawm cov tshuaj tiv thaiv ntawm cov hlau lead ore thiab hydrochloric acid, thiab siv charcoal thiab chromium anhydride los ua kom sov ua ke kom tau cov hmoov hlau chromium.

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►Element piav qhia

Nyiaj-dawb hlau, tawv thiab nkig. Qhov ceev 7.20 g / cm3. Melting point 1857 ± 20 degree, boiling point 2672 degree. Valence +2, +3 thiab +6. Lub zog ionization yog 6.766 electron volts. Chromium hlau feem ntau yog tus cwj pwm los ntawm qhov chaw passivation hauv cov kua qaub. Thaum depassivated, nws yog yooj yim yaj nyob rau hauv yuav luag tag nrho cov inorganic acids, tab sis insoluble nyob rau hauv nitric acid. Chromium yog soluble hauv sulfuric acid tab sis insoluble hauv nitric acid. Nws yog oxidized los ntawm dej vapor ntawm qhov kub thiab txias thiab carbon monoxide ntawm 1000 degree C. Thaum kub kub, chromium reacts nrog nitrogen thiab eroded los ntawm molten alkali hlau. Soluble nyob rau hauv muaj zog alkali tov. Chromium muaj kev tiv thaiv corrosion siab, thiab oxidation qeeb hauv huab cua, txawm tias nyob rau hauv lub xeev kub liab. Insoluble hauv dej.

Lub Plaub Hlis 22, 2024, peb cov nyiaj tau los los ntawm ntau cov chromium ore hauv Iran, txais tos sab laj yog tias muaj kev thov!