Chromite ni ikintu cyingenzi cyo gushonga ferroalloys, ibyuma bitagira umwanda hamwe nudukoresho twinshi. Inganda zibyuma zikoresha hafi 60% ya chromium, ikoreshwa cyane cyane mu gukora ibyuma bivangavanze, cyane cyane ibyuma bitagira umwanda. Muri icyo gihe, chromite ikoreshwa cyane mu nganda zikora inganda, inganda z’imiti n’inganda zoroheje.
Ibikoresho bya Ore
Hariho ubwoko burenga mirongo itanu bwa chromium irimo amabuye y'agaciro aboneka muri kamere, ariko amabuye y'agaciro ya chromium yonyine afite agaciro k'inganda ni chromite, ari spinel (MgO, Al2O3), chromite ya magnesia (MgO, Cr2O3), na magnetite. (FeO, Fe2O3) nibindi bisubizo bikomeye. Mubyukuri, formulaire yimiti ya chromite ni FeO, Cr2O3, irimo 68% Cr2O3, 32% FeO, magnetique yo hagati, ubucucike 4.1 ~ 4.7g / cm3, ubukana bwa Mohs 5.5 ~ 6.5, kandi isura igaragara kuva kumukara kugeza mwijimye wijimye. Amabuye y'agaciro ya Gangue arimo cyane cyane olivine, inzoka na pyroxene, rimwe na rimwe biherekejwe na bike bya vanadium, nikel, cobalt na molybdenum.
Ikoranabuhanga
Ubushinwa bwa chromite bukennye cyane, bwibanda cyane muri Tibet, Sinayi, Mongoliya Imbere, Gansu no mu zindi ntara. Umutungo wa chromite w’amahanga ukwirakwizwa cyane muri Afurika yepfo, Uburusiya, Burezili, Amerika ndetse no mu bindi bihugu. Chromite ifite ibiranga ubucucike buri hejuru, magnetisme yo hagati hamwe nuduce duto twa kirisiti. Mubisanzwe, itondekwa no gukaraba amabuye, gutandukanya imbaraga za magneti, gutandukanya imbaraga zikomeye za magnetique, gutandukanya imbaraga za rukuruzi, flotation nibindi bikorwa.
Uburyo bwo gukaraba
Irakwiriye kubutare bwa chromite yuzuye kandi ifite urwego rwo hejuru rwamabuye mbisi kandi cyane cyane ibumba rimeze nkibumba ryiza nkumwanda. Ibicuruzwa byujuje ubuziranenge birashobora guhitamo gukaraba byoroshye.
Gutandukana kwa rukuruzi
Chromite ifite imiterere ya magnetique kandi irashobora gutandukanywa no gutandukana kwumye cyangwa gutose gukomeye. Magnetite ifitanye isano yabanje gutandukanywa na magnetique idakomeye, hanyuma itandukanijwe na magnetiki na CXJ cyangwa CFLJ, itandukanya plaque magnetique, impeta ihagaritse impagarike ndende ya magnetiki itandukanya, nibindi. Uburyo bwo gutandukanya magnetique bufite ibyiza byubushobozi bunini bwo gutunganya nibipimo bihamye.
Afurika yepfo urubuga rwa chromite
Gutondeka ibitangazamakuru biremereye
Uburemere bwihariye bwa chromite ni 4.1 ~ 4.7g / cm3, kandi uburemere bwihariye bwa gangue hamwe namabuye y'agaciro ya silikatike ni 2.7 ~ 3.2g / cm3. Kwifashisha itandukaniro ryubucucike buri hagati yamabuye y'agaciro, chute spiral, jigging, ameza ahinda umushyitsi, inyungu za spiral zirashobora gukoreshwa Imashini, centrifuges nibindi bikoresho bikomeye byo gutondekanya. Ubu buryo bukwiranye na chromite ifite ingano nini ya kirisiti ya kirisiti, kandi uduce twiza twatakaye byoroshye.
Flotation
Chromite irashobora gukoresha aside irike cyangwa ikusanya amine kugirango ihitemo ibyibanze byujuje ubuziranenge binyuze muburyo bukomeye bwa pH. Irakwiriye kuri chromite nziza-nziza.
Kwifashisha imiti
Kubutare bumwe na bumwe bwa chrome bigoye gutunganywa nuburyo bwo gukoresha imashini, inyungu-uburyo bwo guhuza imiti cyangwa uburyo bumwe bwa shimi bwakoreshejwe. Uburyo bwo kwifashisha imiti burimo: gutoranya gutoranya, redox, gutandukanya fuse, acide sulfurike na acide chromic acide, kugabanya na acide sulfurique, nibindi.
Urugero rw'inyungu
Urwego rwa Cr2O3 ruri muri chromite imwe murizo muri Afrika yepfo ni 24.80%. Nibibanza kuri chute re-guhitamo umurizo. Ingano yicyitegererezo ni -40 mesh kandi ingano yingirakamaro irasa. Chromite iboneka mubice byiza hamwe numubiri uhuza hamwe nibindi. Amabuye y'agaciro ya gangue Ni olivine na pyroxene, hamwe nibyondo bike. Ukurikije imiterere y'amabuye y'agaciro, inzira yo kugenerwa ishyirwaho nk'impeta iringaniye cyangwa ihagaritse intambwe imwe itoroshye.
Chromite ifite ingano nziza ikubiye mu murizo wa site ya chute gravit itandukanya ifata isahani iringaniye cyangwa impeta ihagaritse ikomeye ikomeye yo gutandukanya magnetiki, ishobora guhitamo ibicuruzwa byujuje ubuziranenge. Chromium irimo imyunyu ngugu mu murizo wa magneti ni ingano nziza cyangwa izindi minisiteri idafite agaciro ya chromium irimo amabuye y'agaciro yageze ku bipimo byiza byunguka.
Igihe cyo kohereza: Ukwakira-12-2021