Video: Bauxite ua li cas?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Hauv Bayer txheej txheem , bauxite ore yog rhuab rau hauv lub nkoj siab nrog rau cov tshuaj sodium hydroxide (caustic soda) ntawm qhov kub ntawm 150 txog 200 ° C. Ntawm cov kub no, cov txhuas yog yaj raws li sodium aluminate (feem ntau [Al(OH)]4]−) nyob rau hauv ib tug extraction txheej txheem.
Ua kom pom qhov no, bauxite mined thiab ua li cas?
Bauxite ore yog lub ntiaj teb thawj qhov chaw ntawm txhuas. Cov ore yuav tsum ua ntej yuav tshuaj ua tiav los tsim alumina (aluminium oxide). Tom qab ntawd, alumina yog smelted nrog electrolysis txheej txheem los tsim cov ntshiab aluminium hlau. Cov ore tau txais los ntawm ib puag ncig lub luag haujlwm strip- mining kev ua haujlwm.
Ib yam li ntawd, bauxite raug tsim li cas? Bauxite yog tsim los ntawm cov huab cua zoo ntawm ntau cov pob zeb sib txawv. Av nplaum ntxhia feem ntau sawv cev rau theem nrab, tab sis qee qhov bauxites zoo li rov ua dua cov tshuaj precipitates ntau dua li cov khoom hloov pauv yooj yim. Bauxite tej zaum yuav qib rau hauv cov xuab zeb lossis av nplaum, tom qab lossis ntsug.
Tsuas yog li ntawd, bauxite ua li cas rau hauv Aluminium?
Bauxite yog crushed, qhuav thiab hauv av nyob rau hauv tshwj xeeb mills qhov twg nws yog tov nrog ib tug me me ntawm cov dej. Qhov no txheej txheem tsim cov tshuaj nplaum tuab uas tau sau rau hauv cov thawv tshwj xeeb thiab ua kom sov nrog chav kom tshem tawm feem ntau ntawm silicon tam sim no hauv bauxites. Cov ore yog loaded rau hauv autoclaves thiab kho nrog txiv qaub-caustic soda.
Dab tsi yog cov theem hauv bauxite extraction?
Bauxite mining muaj tsib kauj ruam: Kev npaj ntawm lub mining cheeb tsam; bauxite mining ; crushing; ore thauj; thiab kev kho mob.
Pom zoo:
Ua li cas 3 xaim siab sensor ua haujlwm li cas?
Ib txoj kab xaim hluav taws xob muaj 3 xaim tam sim no. Ob lub zog xaim thiab ib lub xaim thauj khoom. Cov xov hluav taws xob yuav txuas rau lub zog siv hluav taws xob thiab cov hlau txuas rau qee yam kev thauj khoom. Lub load yog ib tug ntaus ntawv uas yog tswj los ntawm lub sensor
Yuav ua li cas ntau npaum li cas koj yuav tsum tau kaw cov pob zeb countertops?
Koj yuav xav rov ua dua txhua ib mus rau peb xyoos. 'Tsis txhob siv cov tshuaj txhuam hniav thiab cov tshuaj txhuam hniav uas tuaj yeem ua rau lub sealer puas,' Havenly's Head of Design, Shelby Girard, qhia CountryLiving.com. ' Txhawm rau tiv thaiv stains, siv cov laug cam, thiab ntxuav cov messes sai sai. Ciab countertops txhua hli ib zaug kaw kom tiv thaiv kom txhob lo av. '
Yuav ua li cas loj npaum li cas septic teb yuav tsum tau?
Ib tug raug septic drainfield trench yog 18 mus rau 30inches nyob rau hauv qhov tob, nrog ib tug siab tshaj plaws av npog tshaj lub pov tseg ntawm 36'; lossis rau USDA, 2 ko taw mus rau 5 ko taw tob. REFERENCES peb suav cov peev txheej no
Yuav ua li cas cov impurities nyob rau hauv bauxite tshem tawm?
Cov bauxite yog purified los ntawm Bayer txheej txheem. Ua ntej cov ore yog tov nrog ib tug kub concentrated tov ntawm sodium hydroxide. NaOH yuav yaj cov oxides ntawm txhuas thiab silicon tab sis tsis yog lwm yam impurities xws li hlau oxides, uas tseem insoluble. Cov ntaub ntawv insoluble raug tshem tawm los ntawm kev pom
Yuav ua li cas yog caustic soda siv nyob rau hauv bauxite refining?
Cov kua dej kub kub (NaOH) tov yog siv los ua kom yaj cov khoom siv txhuas-cov kabmob hauv cov bauxite (gibbsite, böhmite thiab diaspore) los tsim cov tshuaj sodium aluminate supersaturated los yog "ceev xeeb tub"