Dolomite yog ib qho tseem ceeb carbonate ntxhia.
Cov tshuaj muaj pes tsawg leeg thiab cov qauv siv lead ua: Cov tshuaj muaj pes tsawg leeg ntawm dolomite yog CaMg (CO3) 2, thiab nws cov muaju muaj nyob rau hauv trigonal crystal system. Nws cov qauv siv lead ua zoo ib yam li calcite, feem ntau nthuav tawm cov duab rhombohedral, nrog cov ntsej muag siv lead ua feem ntau nkhaus rau hauv cov duab eeb, thiab polysynthetic twinning yog ib txwm muaj. Dolomite feem ntau tshwm sim nyob rau hauv loj heev los yog granular aggregates.
Lub cev muaj zog: Dawb huv dolomite yog dawb, tab sis vim muaj lwm yam khoom thiab impurities, nws tuaj yeem tshwm greyish -ntsuab, greyish - daj, lossis liab dawb. Nws muaj vitreous luster, zoo meej trihedral cleavage, thiab yog nkig. Lub Mohs hardness ntawm dolomite yog nyob nruab nrab ntawm 3.5 thiab 4, thiab nws lub ntiajteb txawj nqus yog 2.8 txog 2.9. Nws cov ntxhia hmoov reacts kuj maj mam nyob rau hauv txias dilute hydrochloric acid.
Hom thiab luminescent zog: Dolomite yog ib hom carbonate ntxhia, suav nrog hlau dolomite thiab manganese dolomite, thiab lwm yam. Qee cov dolomite nthuav tawm cov txiv kab ntxwv - liab ci nyob rau hauv cathode ray irradiation, ib tug yam ntxwv uas muab nws tshwj xeeb daim ntawv thov nqi nyob rau hauv tej teb.
Kev siv dav dav: Dolomite yog cov ntxhia tseem ceeb ntawm dolomite thiab dolomite limestone, nrhiav kev siv dav hauv ntau qhov haujlwm. Nws tuaj yeem siv los ua cov khoom siv alkaline refractory thiab flux hauv blast furnace ironmaking, thiab tseem siv tau rau hauv kev tsim cov calcium magnesium phosphate fertilizer thiab magnesium sulfate. Tsis tas li ntawd, dolomite yog ib qho tseem ceeb hauv kev tsim cov iav thiab ceramics. Nws ua lub luag haujlwm tseem ceeb hauv cov khoom siv hauv tsev, ceramics, iav thiab cov ntaub ntawv refractory, tshuaj lom neeg, kev ua liaj ua teb, kev tiv thaiv ib puag ncig, thiab kev txuag hluav taws xob.
Kev ua thiab Calcination yam ntxwv: Dolomite tuaj yeem ua tiav rau hauv cov khoom sib txawv ntawm qhov ntau thiab tsawg, xws li dolomite ore, dolomite xuab zeb (6-10 mesh, 10-20 mesh, 20-40 mesh, 40-80 mesh, 80-120 mesh, thiab lwm yam), thiab dolomite hmoov (10-40 mesh, 10-120 mesh, thiab lwm yam) 325 mesh, 600 mesh, 1000 mesh, 1600 mesh, thiab lwm yam). Thaum dolomite yog rhuab mus rau 700-900 degree, nws decomposes mus rau hauv ib tug sib tov ntawm carbon dioxide thiab calcium oxide thiab magnesium oxide (caustic magnesia), uas nkag reacts nrog dej. Thaum dolomite yog calcined ntawm 1500 degree, nws cov qauv ua denser, nws cov dej kuj muaj zog, thiab nws refractoriness nce mus txog 2300 degree.
Geological Distribution thiab Resources: Dolomite deposits nyob rau hauv kuv lub teb chaws yog feem ntau faib nyob rau hauv carbonate pob zeb formations, nrog cov laus strata muaj ntau deposits. Cov ntaub ntawv pov thawj dolomite muaj ntau thiab tuaj yeem ua tau raws li qhov xav tau ntawm kev txhim kho kev lag luam. Cov chaw tsim khoom raug faib thoob plaws txhua lub xeev, nrog cov khoom tsim tawm loj tshaj plaws nyob rau hauv Kazuo County cheeb tsam ntawm Chaoyang City.
