Tuyen tap bao cao ky niem 15 nam thanh lap Vien Klioa hgc Vat lieu Ha Noi 6/2008 HOAN THIEN CONG NGHE TUYEN MICA TlT QUANG THAI DUOI CUA QUA TRINH TUYEN CAO LANH LAM NGUYEN LIEU CHO MOT SO NG ANH CONG[.]
Tuyen tap bao cao ky niem 15 nam lap Vien Klioa hgc Vat lieu - Ha Noi 6/2008 HOAN THIEN CONG NGHE TUYEN MICA TlT QUANG THAI DUOI CUA QUA TRINH TUYEN CAO LANH LAM NGUYEN LIEU CHO MOT SO NG.ANH CONG NGHIEP Dao Van Son, Ta Quoc Hung Vien Khoa bgc Vat lieu, Vien Khoa hgc vii Cdng nghe Viet Nam 18 Hoimg Qudc Viet, Quan Cau Giay, Ha Ndi; E-mail: hungtq(fl)ims.vast.ac.vn I Tong quan ve cong nghe tuyen va ling dung mica tren the gidi /./ Cong nghe tuyen mica Hien cac nude khai thac vii san xuat himg diiu the gidi ve sim pham mica lii Vly, Nga, Hiin Qudc, Canada, Phap, Diri Loan, Malaysia, Braxin, Mexico, An t)g Srilanca , vdi tdng khdi lugng himg tritni ngbin tan mot nam Qua trinb tuyen quang mica thudng ket hgp ddng thdi vdi viec luyen quang fenspat vii cao lanh Thuc chat van de la khoang vat mica nam quang thai ciia qua trinb luyen quang fenspat vii cao lanh ingt sd nude nhu Tay Ban Nha, Y, Phap ngudi la tuyen quang fenspat tir da pecmalyt hoac granit, san phiini mica dii dugc thu hoi bilng phuong phap tuyen ndi, tuyen trgng lire L2 Ung dung mica lam nguyen lieu cho mot so nganh cong nghiep Cite irng dung chinb ciia siin pham mica bao gom: - Lam chiit phu gia: san xuat que ban, gay chay , - Lam chill ddn: san xuat son, compozit, - Liim vat lieu phu (Fillers), - Liim viit lieu bgc (Roofing), - Trong cdng nghiep ximang: liim tang dinh, bam va ben co hgc - Trong cdng nghiep cao su: la phu gia va chat don de liuii tang kha nang chiu lire ma sal va chiu nhiel - Trong xiiy dung: cac vat lieu ihay the, ket dinh, cac tam phii ludng, Iran - Trong cdng nghiep nhira, polymer: lam lang ben nhiet, va dap, tiet kiem nhua, liun chit gia cudng cho chi tiet xe d td - Trong cdng nghiep gdm su dan dung: lam chat nhudin iiiiiu, tang ket dinh, bong, ben nhiet - Trong lu>en kim: liun chiit phu be mat kim loai, tao ket dinh, phu niiing mdng chiu nbiet cao chdng oxy hoa 307 Cdng trinh kinh Idng Gido su Vien sy Nguyen I'dn Hieu nhdn dip Gido sir Vien sy 70 tudi - Trong cdng nghiep giay: tang bdng, an muc in, chong tham lam giiiy dan ludng, giay trang tri - Trong cong nghiep son: tang bam, tao bdng va anh kim - Trong cdng nghe che tao dau bdi tron ddng co (tang chiu nhiet, mai mon va tudi tbg), dung dich khoan dau - Trong cdng nghiep boa my pham (cosmetic): lam phu gia hoac chat phu, chat don, chit nen cho san xuit cac loai son mdi, mat, phan mau, kem (dac biet la cac loai kem va xa phdng dudng da cac tinh nang chdng tri UV eiia mica), giir am, ket dinh, trong, linh lip lanh, de lap be mat da va dac biet klidng va it ddc Bang 1: San lugng mica theo tirng nudc/timg nam (tan) 1999 2000 2001 2002 2003 Argentina 3.097 4.665 2.120 1.770 1.894 Brazil 3.000 5.000 5.000 5.000 500 Canada 17.500 17.500 17.500 17.500 17.500 Phap 10.000 10.000 10,000 10.000 10.000 An Do 2.500 2.450 2.400 3.500 3.600 Iran 1.425 2.000 3.255 2.845 3.000 Han Qudc 24.733 65.249 109.339 29.870 40.000 Madagasca 54 66 90 60 70 Malaysia 3.675 3.835 4.107 3.669 4.110 Mexico 971 1.658 648 456 500 Mardc 210 1.897 - - - Nauy 2.500 2.500 2.500 2.600 2.600 Nga 100.000 100.000 100.000 100.000 100.000 50 100 100 100 100 Nam Phi 1.010 708 937 821 1.003 Tay Ban Nha 2.500 2.500 2.500 2.500 2.500 Sri Lanka 1.425 1.491 1.161 i.rei 1.200 Dili Loan 6.966 6.862 9.733 6.595 3.237 My 95.400 101.000 97.800 81.100 78.600 1.300 - - - - 278.000 329.000 369.000 270.000 275.000 Ten nuoc Serbia&Montenegrd Zimbabwe Tdng cong 308 Tuyen tap bao cao ky niem 15 nam lap Vien Khoa hgc Vat lieu - Ha Noi, 6/2008 Bang 2: Mica bgt che pham dugc sir dung cac nganh cdng nghiep chii yeu ciia My Nam 2002 Nganh su' dung Nam 2003 Sdn lugng (nghin tdn) Gid tri (nghin USD) Sdn luo'ng (nghin tdn) Gid tri (nghin USD) Ximang gan ket 58 10.600 61 12.100 San (paint) 15 3.880 13 3.060 Nhua (plastics) 2.270 2.570 Cac nganh khac 21 12.900 15 10.800 99 29.600 94 28.600 Tong cong II Dac diem khoang vat mica 2.1 Dac diUm vd cau true khodng vat mica Mica cd cac dac tinh chung ciia Muscovit, dd la: Tinh the he don ta, cau tnic ldp (ciia cac tir dien AI-Si-0)- Hinh I V-^ Ft )r-''l>-"< '• ^- - V~,^ ^•, U f-'v5;.-i*>"^';^ m.i JM' e e» e « » ^> Hinh 1: Cau triic mang tinh the mica (Theo Milovski A.V, Konov O.V 1982) - Dd cirng: 2^2,5 - Ty trgng: 2,5H-3,2 g/ein\ dac trung = 2,82 g/ciV 309 Cong trinh kinh tdng Gido su Vien sy Nguyen Vdn Hieu nhdn dip Gido sir Vien sy 70 tudi - Co kha nang phan tam mdng, be mat phang cao, ty le dudng kinh be mat/do day cao (aspec ratio), - De udn, deo, - Trong sudt den md, phan quang be mat (anh kim), - Mau trang, vang nau (muscovit cd the cd mau dd rubi), - Chiu nhiet cao (den nhiet 600-^1000 °C), dan nhiet kem (do dan nhiet bang 0,32 w/m.deg), nhiet dung rieng = 0,8 kJ/kg.deg; each dien (do ben dien = 10 KV/min), tro vl hoa hgc, each am, khdng tham nude, - it ddc td (cac chat ddc hai nhu As, Hg, Pb thudng thip) 2.2 Thanh phdn khodng hod - Khoang vat Biotyt: K20.6(Mg,Fe)0.Al203.6Si02.2H20 - Ham lugng cac nguyen td: K2O = 6,18^ 11,43%; Ee203 = 0,13-^20,65 %; MgO = 0,28^28,34%; AI2O3 = 9,43^31,69%; EeO = 2,7^27,6%; Si02 = 32,83^44,94% - Khoang vat Muscovit: K2O.3Al2O3.6SiO2.2H2O - Ham lugng cac nguyen td: K2O = 11,8%; AI2O3 = 38,5%; Si02 = 45,2%; Ee203