Chromite chinhu chakakosha pakunyungudutsa ferroalloys, Stainless simbi uye alloys anokosha.Indasitiri yemetallurgical inoshandisa inenge 60% yechromium, iyo inonyanya kushandiswa kugadzira alloy simbi, kunyanya simbi isina tsvina.Panguva imwecheteyo, chromite inoshandiswa zvakanyanya muindastiri refractory, indasitiri yemakemikari uye indasitiri yemwenje.
Ore properties
Kune anopfuura makumi mashanu marudzi emaminerari ane chromium anowanikwa muzvisikwa, asi chete chromium-ine zvicherwa zvine kukosha kwemaindasitiri ndeye chromite, ayo ari spinel (MgO, Al2O3), magnesia chromite (MgO, Cr2O3), uye magnetite.(FeO, Fe2O3) uye mamwe magadzirirwo akasimba.Tichifunga, kemikari yekromite inonzi FeO, Cr2O3, ine 68% Cr2O3, 32% FeO, yepakati magineti, density 4.1~4.7g/cm3, Mohs kuoma 5.5 ~ 6.5, uye kutaridzika kwepamusoro kunotangira kubva kune dema kusvika kune yakasviba.Gangue zvicherwa zvinonyanya kusanganisira olivine, serpentine uye pyroxene, dzimwe nguva inoperekedzwa nehuwandu hushoma hwevanadium, nickel, cobalt uye molybdenum boka zvinhu.
Processing Technology
Zviwanikwa zveChina zvechromite zvine hurombo, zvakanyanya kutarisana neTibet, Xinjiang, Inner Mongolia, Gansu nemamwe mapurovhinzi.Zvekune dzimwe nyika chromite zviwanikwa zvinonyanya kugoverwa muSouth Africa, Russia, Brazil, United States nedzimwe nyika.Chromite ine hunhu hwehupamhi hwepamusoro, epakati magineti uye coarse crystal particles.Kazhinji, inorongedzerwa nekugeza ore, isina simba remagineti kupatsanurwa, yepakati yakasimba magineti kupatsanurwa, kupatsanurwa kwegiravhiti, kuyerera uye mamwe maitiro.
Washing method
Iyo yakakodzera kune yakakora-grained chromite ore ine yakakwira giredhi yeore mbishi uye kunyanya ivhu-rakafanana nedhaka rakanaka setsvina.Yakakodzera coarse concentrate zvigadzirwa zvinogona kusarudzwa nekugeza nyore.
Magnetic kupatsanurwa
Chromite ine epakati magineti zvimiro uye inogona kupatsanurwa nekuoma kana kunyorova kwakasimba kwemagineti kuparadzaniswa.Iyo yakabatana magnetite inotanga kuparadzaniswa nemagetsi asina simba, uye ipapo magnetically inoparadzaniswa neCXJ kana CFLJ, ndiro yemagineti separator, vertical ring high gradient magnetic separator, etc. The midziyo inoita kuoma uye kunyorova beneficiation, uye inogona kusarudza vanokwanisa concentrate zvigadzirwa.Iyo magineti yekuparadzanisa nzira ine zvakanakira yehukuru hwekugadzirisa simba uye yakagadzikana zviratidzo.
South Africa chromite application saiti
Heavy media kurongedza
Iwo chaiwo makuriro echromite ndeye 4.1 ~ 4.7g/cm3, uye iwo chaiwo giravhiti yeakabatana gangue uye iron silicate zvicherwa kazhinji 2.7 ~ 3.2g/cm3.Kutora mukana wemusiyano mukuwanda pakati pezvicherwa, spiral chute, jigging, tafura yekuzunza, spiral beneficiation inogona kushandiswa Machina, centrifuges uye zvimwe zvinorema zvekurongedza midziyo yekurongedza.Iyi nzira inokodzera chromite ine coarser crystal saizi yezviyo, uye zvidimbu zvakanaka zvinorasika zviri nyore mumaswe.
Flotation
Chromite inogona kushandisa mafuta asidhi kana amine vaunganidzi kuti vasarudze vanokwanisa kutarisisa kuburikidza nekuita roughing uye kutsvaira pasi pemamiriro epH akakodzera.Inokodzera makromite akaisvonaka-grained uye akanaka-grained.
Chemical Beneficiation
Kune mamwe ma chrome ores ayo akaoma kugadziridzwa nemichina yekubatsira nzira, iyo beneficiation-kemikari yakasanganiswa maitiro kana imwe kemikari nzira inogamuchirwa.Chemical Beneficiation nzira dzinosanganisira: kusarudza leaching, redox, kupatsanura fuse, sulfuric acid uye chromic acid leaching, kuderedza uye sulfric acid leaching, nezvimwe.
Beneficiation muenzaniso
Giredhi reCr2O3 riri mune imwe chromite muswe muSouth Africa i24.80%.Iri pa-saiti chute re-sarudzo tailings.Saizi yekuenzanisira ndeye -40 mesh uye saizi yechikamu inenge yakafanana.Iyo chromite iripo mune yakanaka particles uye contiguous miviri uye inclusions.Iyo huru gangue minerals Ndiyo olivine uye pyroxene, ine zvishoma zvishoma zvedhaka rakanaka.Zvinoenderana nechimiro cheore samples, iyo beneficiation process inotangwa seyakadzika kana yakatwasuka mhete imwe-nhanho roughing.
Iyo yakatsetseka-grained chromite iri mumashure e-on-saiti chute giravhiti kupatsanurwa inotora ndiro yakati sandara kana mhete yakatwasuka yakasimba magineti yekuparadzanisa process, iyo inogona kusarudza inokwanisa kutarisisa zvigadzirwa.Iwo maminerari ane chromium mune magineti muswe akanyatso-grained inclusions kana mamwe asina Kukosha chromium-ine zvicherwa akawana zvakanaka zviratidzo zvekubatsira.
Nguva yekutumira: Oct-12-2021