Chromite waa shay muhiim u ah dhalaalinta ferroalloys, birta aan lahayn iyo alaabo qaali ah. Warshadaha birta waxay isticmaalaan qiyaastii 60% chromium, taas oo inta badan loo isticmaalo soo saarista birta daawaha ah, gaar ahaan birta aan lahayn. Isla mar ahaantaana, chromite ayaa sidoo kale si weyn loogu isticmaalaa warshadaha dib-u-celinta, warshadaha kiimikada iyo warshadaha iftiinka.
Guryaha macdanta
Waxaa jira in ka badan konton nooc oo macdanta chromium-ka ku jira oo laga helo dabeecadda, laakiin kaliya chromium-ka ku jira macdanta qiimaha warshaduhu waa chromite, kuwaas oo ah spinel (MgO, Al2O3), magnesia chromite (MgO, Cr2O3), iyo magnetite. (FeO, Fe2O3) iyo xalal kale oo adag. Fikrad ahaan, qaacidada kiimikada ee chromite waa FeO, Cr2O3, oo ka kooban 68% Cr2O3, 32% FeO, magnetic dhexdhexaad ah, cufnaanta 4.1 ~ 4.7g / cm3, adkaanta Mohs 5.5 ~ 6.5, muuqaalka kore wuxuu u dhexeeyaa madow ilaa madow madow. Macdanta Gangue inta badan waxaa ka mid ah olivine, serpentine iyo pyroxene, mararka qaarkood waxaa weheliya qadar yar oo ah vanadium, nikkel, kobalt iyo xubno kooxda molybdenum.
Farsamaynta Farsamada
Khayraadka chromite-ka ee Shiinaha ayaa aad u liita, inta badan waxa ay ku badan yihiin Tibet, Xinjiang, Mongolia gudaha, Gansu iyo gobolo kale. Kheyraadka chromite-ka ajnabiga ah waxaa inta badan lagu qeybiyaa Koonfur Afrika, Ruushka, Brazil, Mareykanka iyo wadamo kale. Chromite waxay leedahay sifooyinka cufnaanta sare, magnetism-ka dhexdhexaadka ah iyo qaybaha crystals aan dhab ahayn. Guud ahaan, waxaa lagu kala soocaa by dhaqidda macdanta, kala soocida magnetic daciif ah, kala soocida magnetic xoog dhexdhexaad ah, kala soocidda cuf, sabbaynaya iyo hababka kale.
Habka dhaqida
Waxay ku habboon tahay macdanta chromite-ka-midho-la'aanta ah ee leh darajada sare ee macdanta ceyriinka ah iyo inta badan dhoobada u eg dhoobada sida wasakhda. Alaabooyinka isku dhafka ah ee saxda ah waxaa lagu dooran karaa dhaqid fudud.
Kala soocida magnetic
Chromite waxay leedahay sifooyin birlabeed dhexdhexaad ah waxaana lagu kala saari karaa qalalan ama qoyan oo kala soocida birlabeedka xooggan. Magnetite-ka laxiriira marka hore waxaa lagu kala soocaa birlab daciif ah, ka dibna magnetically kala sooca CXJ ama CFLJ, kala-soocida magnetic magnetic, kala-soocida magnetic sare ee giraanta, iwm. Qalabku wuxuu qabtaa faa'iidooyin qalalan oo qoyan, wuxuuna dooran karaa alaabada xoogga leh ee u qalma. Habka kala-soocidda magnetic wuxuu leeyahay faa'iidooyinka awoodda wax-qabad ee ballaaran iyo tilmaamayaasha deggan.
Goobta codsiga chromite ee Koonfur Afrika
Kala soocida warbaahinta culus
Cuf-jiidka gaarka ah ee chromite waa 4.1 ~ 4.7g/cm3, culeyska gaarka ah ee gangue iyo macdanta silicate ee birta ah ayaa guud ahaan ah 2.7 ~ 3.2g/cm3. Ka faa'iidaysiga farqiga u dhexeeya cufnaanta u dhaxaysa macdanta, spiral chute, jigging, miiska ruxruxa, faa'iidada wareega ah waxaa loo isticmaali karaa Mashiinada, sentifuges iyo qalabka kale ee kala soocida culus. Habkani wuxuu ku habboon yahay chromite leh cabbirka hadhuudhka crystal-ka, iyo qaybo yaryar ayaa si fudud u luminaya dabada.
sabayn
Chromite waxay isticmaali kartaa aashitada dufanka leh ama ururiyeyaasha aminiga ah si ay u doorato xoog-saarid u qalma iyada oo loo marayo habraacyo xaaqid iyo xaaqid iyadoo la raacayo xaaladaha pH ee ku habboon. Waxay ku habboon tahay chromites-ka-fudud iyo dhuuban.
Ka faa'iidaysiga kiimikada
Qaar ka mid ah macdanta chrome ee ay adagtahay in lagu farsameeyo hababka ka faa'iidaysiga farsamada, ka faa'iidaysiga -nidaamka isku dhafan ee kiimikaad ama hal hab oo kiimiko ah ayaa la qaatay. Hababka ka faa'iidaysiga kiimikada waxaa ka mid ah: leaching xulashada, redox, kala soocida fiyuuska, sulfuric acid iyo chromic acid leaching, hoos u dhigista iyo sulfuric acid leaching, iwm.
Tusaalaha faa'iidada
Darajada Cr2O3 ee ku jirta dabada chromite ee Koonfur Afrika waa 24.80%. Waa dabada dib-u-doorashada ee goobta. Cabbirka muunadku waa -40 mesh, cabbirkuna waa isku mid. chromite-ku waxa uu ku jiraa qaybo yaryar iyo xubno isku xidhan iyo kuwo lagu daro. Macdanta ugu weyn ee gangue waa olivine iyo pyroxene, oo leh qadar yar oo dhoobo ah. Marka loo eego dabeecadda muunadaha macdanta, habka ka faa'iidaysiga waxa loo dejiyay sidii giraan fidsan ama toosan oo hal-tallaabo ah.
Chromite-ka-cafiska ah ee ku jira dabada ee kala-soocidda cufis-jiidad ee goobta-ku-meel-gaadhka ah waxay qabataa saxan fidsan ama giraanta toosan ee habka kala-soocidda magnetic xooggan, kaas oo dooran kara alaabada xoogga leh ee u qalma. Macdanta chromium-ka ku jirta ee dabada birlabeedka ah waa ku darida miro-dhafan ama macdano kale oo aan qiimo lahayn oo chromium-ku ku jira waxay gaadheen tilmaameyaal ka faa'iidaysi wanaagsan.
Waqtiga boostada: Oct-12-2021