I-Shaft Kiln Bauxite kanye ne-Rotary Kiln Bauxite 85/86/87/88

I-Bauxite
Iqoqo le-bauxite
I-chamotte ye-bauxite

Incazelo emfushane

I-Bauxite iyiminerali yemvelo, eqinile kakhulu futhi ngokuyinhloko yakhiwe ngamakhemikhali e-aluminium oxide (i-alumina), i-silica, i-iron oxides kanye ne-titanium dioxide. Cishe amaphesenti angama-70 okukhiqizwa kwe-bauxite emhlabeni wonke kuhlungwa ngenqubo yamakhemikhali e-bayer ibe yi-alumina.

XHUMANA MANJE

I-Shaft Kiln Bauxite

Izinto	I-Al2O3	I-Fe2O3	BD
86	86% iminithi	Ubuningi obungu-2%	2.9-3.15
85	85% iminithi	Ubuningi obungu-2%	2.8-3.10
84	84% iminithi	Ubuningi obungu-2%	2.8-3.10
83	83% iminithi	Ubuningi obungu-2%	2.8-3.10
82	82% iminithi	Ubuningi obungu-2%	2.8-3.0
80	80% iminithi	Ubuningi obungu-2%	2.7-3.0
78	78% iminithi	Ubuningi obungu-2%	2.7-2.9
75	75% iminithi	Ubuningi obungu-2%	2.6-2.8
70	70% iminithi	Ubuningi obungu-2%	2.6-2.8
50	50% iminithi	Ubuningi obungu-2%	2.5-2.55

I-Rotary Kiln Bauxite

Ama-Itam	I-Al2O3	I-Fe2O3	BD	I-K2o+Na2o	I-CaO+MgO	I-TiO2
88	88% iminithi	Ubuningi obungu-1.5%	3.25 min	Ubuningi obungu-0.25%	Umkhawulo ongu-0.4%	Ubuningi obungu-3.8%
87	87% iminithi	Ubuningi obungu-1.6%	3.20 min	Ubuningi obungu-0.25%	Umkhawulo ongu-0.4%	Ubuningi obungu-3.8%
86	86% iminithi	Ubuningi obungu-1.8%	3.15 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	4% ubuningi
85	85% iminithi	Ubuningi obungu-2.0%	3.10 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
83	83% iminithi	Ubuningi obungu-2.0%	3.05 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
80	80% iminithi	Ubuningi obungu-2.0%	3.0 iminithi	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
78	75-78%	Ubuningi obungu-2.0%	2.8-2.9	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%

I-Bauxite Eyindilinga Yesitofu

Ama-Itam	I-Al2O3	I-Fe2O3	BD	I-K2o+Na2o	I-CaO+MgO	I-TiO2
90	90% iminithi	Ubuningi obungu-1.8%	3.4 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-3.8%
89	89% iminithi	Ubuningi obungu-2.0%	3.38 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
88	88% iminithi	Ubuningi obungu-2.0%	3.35 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
87	87% iminithi	Ubuningi obungu-2.0%	3.30 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
86	86% iminithi	Ubuningi obungu-2.0%	3.25 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
85	85% iminithi	Ubuningi obungu-2.0%	3.20 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%
83	83% iminithi	Ubuningi obungu-2.0%	3.15 min	Ubuningi obungu-0.3%	Ubuningi obungu-0.5%	Ubuningi obungu-4%

Ngokusekelwe eqinisweni lokuthi i-bauxite clinker inokushisa okuncane kanye nokumelana okungcono kokushelela kanye nempahla yokumelana nokuguguleka, ingasetshenziswa ku-HFST (ukwelashwa kobuso obuphezulu bokungqubuzana) noma ungqimba lokuhuzuka kwengxube ye-asphalt ukuze ithathe indawo noma ithathe indawo ye-aggregate ekhona. I-Bauxite clinker ihlukaniswe ngezinhlobo eziyisithupha ikakhulukazi ngokuya ngokuqukethwe kwamakhemikhali ahlukene. Ukukhethwa kwe-bauxite clinker njenge-aggregate akugcini nje ngokubaluleka kwezomnotho, kodwa futhi nokuthuthukisa ukunamathelana phakathi kwe-aggregate ne-asphalt, enokungaboni okuthile. Lolu cwaningo luhlole izici zezinhlobo ezahlukene ze-bauxite clinker. Ukunamathelana kwezinhlobo ezahlukene ze-bauxite clinker ne-asphalt kuhlolwe ngendlela yokuxubha i-hydrostatic kanye nethiyori yamandla angenawo umphezulu. Umphumela wezimpawu ze-bauxite clinker ekunamatheleni uhlolwe ngokuhlaziywa kwe-grey correlation entropy.

Imininingwane yolwazi

I-Bauxite iyinto eluhlaza efanelekile yokukhiqiza i-alumina. Ngaphandle kwezinto eziyinhloko ze-aluminium ne-silicon, i-bauxite ivame ukuhlanganiswa nezinto eziningi ezibalulekile njenge-gallium (Ga), i-titanium (Ti), i-scandium (Sc), kanye ne-lithium (Li). I-bauxite residue kanye notshwala obusetshenzisiwe obujikelezayo ekukhiqizweni kwe-alumina ngokuvamile kufaka inani elikhulu lezinto ezibalulekile, okwenza kube umthombo ongaba khona we-polymetallic. Ukubuyiselwa kwalezi zinto ezibalulekile kungakhulisa kakhulu ukusebenza kahle kwenqubo yokukhiqiza i-alumina ngenkathi kunciphisa umthwalo wezimboni kanye nomthelela emvelweni. Lolu cwaningo lunikeza ukuhlaziywa okubucayi kobuchwepheshe obukhona obusetshenziswa ukubuyisa izinto ezibalulekile ezinsaleleni ze-bauxite kanye notshwala obusetshenzisiwe obujikelezayo ukuze kunikezwe ukuqonda ngokusetshenziswa okubanzi kwensalela ye-bauxite njengomthombo kunokuba kube yimfucuza. Ukuqhathaniswa kwezici zenqubo ezikhona kubonisa ukuthi inqubo ehlanganisiwe yokubuyisa izinto ezibalulekile kanye nokunciphisa ukukhishwa kwemfucuza kuyazuzisa.