I-Chromite iyinto ebalulekile yokuncibilikisa ama-ferroalloy, insimbi engagqwali kanye nama-alloy ayigugu. Imboni yensimbi isebenzisa cishe u-60% we-chromium, esetshenziswa kakhulu ukukhiqiza insimbi ye-alloy, ikakhulukazi insimbi engagqwali. Ngesikhathi esifanayo, i-chromite isetshenziswa kabanzi embonini ephikisayo, embonini yamakhemikhali kanye nasembonini yokukhanya.
Izakhiwo ze-Ore
Kunezinhlobo ezingaphezu kwamashumi amahlanu zamaminerali aqukethe i-chromium atholakala emvelweni, kodwa amaminerali aqukethe i-chromium kuphela anenani lezimboni yi-chromite, okuyi-spinel (MgO, Al2O3), i-magnesia chromite (MgO, Cr2O3), kanye ne-magnetite. (FeO, Fe2O3) kanye nezinye izixazululo eziqinile. Ngokwethiyori, ifomula yamakhemikhali ye-chromite yi-FeO, Cr2O3, equkethe u-68% Cr2O3, u-32% FeO, u-magnetic ophakathi, ubuningi obungu-4.1~4.7g/cm3, ubulukhuni be-Mohs bungu-5.5~6.5, kanti ukubukeka kobuso kuhluka kusukela kumnyama kuya konsundu omnyama. Amaminerali e-Gangue ahlanganisa kakhulu i-olivine, i-serpentine kanye ne-pyroxene, ngezinye izikhathi ehambisana nenani elincane le-vanadium, i-nickel, i-cobalt kanye nezakhi zeqembu le-molybdenum.
Ubuchwepheshe Bokucubungula
Izinsiza ze-chromite zaseShayina zimpofu kakhulu, ikakhulukazi zigxile eTibet, eXinjiang, e-Inner Mongolia, eGansu nakwezinye izifundazwe. Izinsiza ze-chromite zakwamanye amazwe zisakazwa kakhulu eNingizimu Afrika, eRussia, eBrazil, e-United States nakwamanye amazwe. I-Chromite inezici zokuxinana okuphezulu, i-medium magnetism kanye nezinhlayiya zekristalu eziqinile. Ngokuvamile, ihlelwa ngokuwashwa kwe-ore, ukuhlukaniswa okubuthakathaka kwe-magnetic, ukuhlukaniswa okunamandla kwe-magnetic okuphakathi, ukuhlukaniswa kwamandla adonsela phansi, ukuntanta kanye nezinye izinqubo.
Indlela yokuwasha
Ifanele i-chromite ore enezinhlayiya eziqinile enezinga eliphezulu le-ore eluhlaza kanye nodaka oluncane olufana nobumba njengokungcola. Imikhiqizo efanelekile yokugxila kwe-coarse ingakhethwa ngokuwasha okulula.
Ukuhlukaniswa kwamagnetic
I-Chromite inezakhiwo ezimaphakathi zemagnethi futhi ingahlukaniswa ngokuhlukaniswa okunamandla kwemagnethi okomile noma okumanzi. I-magnetite ehambisanayo ihlukaniswa kuqala nge-magnetic ebuthakathaka, bese ihlukaniswa ngemagnethi nge-CXJ noma i-CFLJ, i-plate magnetic separator, i-vertical ring high gradient magnetic separator, njll. Imishini yenza inzuzo eyomile nemanzi, futhi ingakhetha imikhiqizo efanelekile yokugxila. Indlela yokuhlukanisa imagnethi inezinzuzo zomthamo omkhulu wokucubungula kanye nezinkomba ezizinzile.
Isayithi lesicelo se-chromite laseNingizimu Afrika
Ukuhlunga imidiya enzima
Ubukhulu obuqondile be-chromite bungu-4.1 ~ 4.7g/cm3, kanti ubukhulu obuthile be-gangue kanye ne-iron silicate minerals ezihambisanayo ngokuvamile bungu-2.7 ~ 3.2g/cm3. Ukusebenzisa umehluko wobuningi phakathi kwamaminerali, i-spiral chute, i-jigging, i-shaking table, i-spiral beneficiation kungasetshenziswa. Imishini, ama-centrifuge kanye neminye imishini yokuhlunga esindayo yokuhlunga. Le ndlela ifanele i-chromite enobukhulu be-crystal grain, futhi izinhlayiya ezincane zilahleka kalula emisileni.
Ukuntanta
I-Chromite ingasebenzisa abaqoqi be-fatty acid noma ama-amine ukukhetha ama-concentrate afanelekile ngokusebenzisa izinqubo zokugoqa nokusula ngaphansi kwezimo ze-pH ezifanele. Ifanele ama-chromite acolekile nacolekile.
Ukuzuza ngamakhemikhali
Kwamanye ama-ore e-chrome okunzima ukuwacubungula ngezindlela zokuthuthukisa ukwakheka kwe-mechanical, kusetshenziswa inqubo yokuthuthukisa ukwakheka kwe-biochemical - inqubo ehlanganisiwe yamakhemikhali noma indlela eyodwa yamakhemikhali. Izindlela zokuthuthukisa ukwakheka kwe-biochemical zifaka: ukuhlanzwa okukhethwayo, i-redox, ukuhlukaniswa kwe-fuse, ukuhlanzwa kwe-sulfuric acid kanye ne-chromic acid, ukunciphisa kanye nokuhlanzwa kwe-sulfuric acid, njll.
Isibonelo senzuzo
Izinga le-Cr2O3 eliqukethwe kumsila othile we-chromite eNingizimu Afrika lingu-24.80%. Liyi-tailings yokukhetha kabusha i-chute endaweni. Usayizi wesampula ungama-mesh angu-40 kanti usayizi wezinhlayiya uyafana. I-chromite ikhona ezinhlayiyeni ezincane kanye nemizimba ehambisanayo kanye nezinto ezifakiwe. Amaminerali amakhulu e-gangue. I-olivine ne-pyroxene, enodaka oluncane. Ngokwemvelo yamasampula e-ore, inqubo yokuzuza isungulwa njengendandatho eyisicaba noma eqondile ejikelezayo ngesinyathelo esisodwa.
I-chromite enemibala emihle equkethwe emisipheni yokuhlukaniswa kwamandla adonsela phansi kwe-chute esizeni isebenzisa inqubo yokuhlukanisa ipuleti eliyisicaba noma inqubo yokuhlukanisa amandla kagesi eqinile, engakhetha imikhiqizo yokugxila efanelekile. Amaminerali aqukethe i-chromium emsileni onemibala emihle ayizinto ezifakiwe noma amanye amaminerali angenawo ayigugu aqukethe i-chromium afinyelele izinkomba ezinhle zokuzuza.
Isikhathi sokuthunyelwe: Okthoba-12-2021