KHOA HOC VA CANG NGHE MO NGHIEN Ciru Xir LY CHAT THAI RAN PHAT SINH TUT QUA TRINH TUYEN QUANG SAT CN TA V A N H A N H , P G S T S N G U Y I N XUAN T A N G , ThS TA QUOC HUNG va nnk - Vi^n Khoa hfc V$t li$u ud trinh khai thdc, tuyin qudng sit dd thai mdi truflng mflt khii lupng chit thai bOn sdt rit Ifln (thuflng dupe gpi Id "sit thai qudng sifO Thdnh phin eOa sit thai qudng sdt gom chu yiu Id sdt (70+80 %), cdt, qudng vd cdc tgp chit khdc (IOi-20 %) Hidn tgi, logi ehit thai ndy vin chug cfl phupng dn xir \^ tridt d i gdy Idng phi tdi nguydn vd tiim i n nguy cp gdy i nhilm mfli truflng [1^ CQng giing nhu qu$ng dufli, chit thai rdn cua cde logi khodng san khdc, phdn tich mflt s i mlu sit thdi khai thdc vd tuyin qudng sit eho thiy thdnh phin vdt chit ciia chiing ngodi cdc tgp ehit la cfln Igi mit lupng khd Ifln khodng chit cfl Ich Cdc khodng ehit ndy cfl thi thu hii vd tdi sir dgng, dfl phdi k i din khodng sdt vd qudng tinh sit [5], [6] Bo dfl vi$c nghidn ciru xu ly chit thai rdn kiiai khodng nfli chung, qud trinh tuyin qudng sit nfli ridng, vira gidi quyit dupe tinh trgng fl nhilm mfll tnrflng lgi cfl thi tdn thu dupe tdi nguydn Q 1.Thycnghi$m 1.1 Mau nghidn cu'u B i phgc vg che cing tdc nghidn ciru thi nghigm dd su dgng 02 logi mlu Mlu sit thai logi cfl mdu ndu vdng (ky hidu SVQ01) liy tir h i Idng nhd mdy tuyin n>a qudng sdt, mlu sit thai logi (ky hidu SVQ02) cfl mdu ndu den liy tir h i ling Ifl dot tir hflg thidu kit qudng sit 1.2 Nghien ci>u thu hdi set fi> SVQ01 Kit qua phdn tich thdnh phin hfla hpc cde chi tidu CP ban cDa SVQ01 ldm nguydn lidu san xuit ggch nung t h i hidn fl Bang SVQ01 cfl cap hgt rk mjn, thdnh phin khflng cfl ca hgt > 2mm, cip hgt 10(divdt) 2+10 (sol sgn) 0,005+2 (bgi cdt)