ࡱ > R jQ bjbj>> <~ T T Q S ! ! ! 8 Y 5 ! O l M M M N N N N N N N P S 8 N E M @ M M M N T BO 1 1 1 M X H N 1 M N 1 1 e 1 {X] ! ) 1 N XO 0 O 1 S , S 1 1 P S E M M 1 M M M M M N N y- * M M M O M M M M S M M M M M M M M M : }v^xNdlTTcS'lSv]zxvz jsёUO*Q _^ޘĞlCQ ( ^QёxvzbWS[ 5 3 0 0 2 3 ) XdN}v^x0dl:NSe~ǏxmQ0 N!kSS0xn4l0N!kS0xm0N!kS0Ixlm0|6RI{c~]^S_0R~^9 9 . 9 9 % vS c 2 O 3 0dlT}v^x-NvV6esR+R0R5 7 . 8 % T9 3 . 3 % 0 sQ.͋}v^xdl'lSc~ -NVR{|ST F 8 4 5 + . 1 e.sh_xA ezS1 0 0 7 - 7 5 4 5 2 0 1 5 0 5 - 0 0 0 0 - 0 0 S t u d y o n T e c h n o l o g y of Scandium Oxide Extraction from Red Mud and Titanium White Waste Acid FAN Yan-jin, HE Hang-jun, ZHANG Jian-fei, HUANG Tai-yuan (Guangxi Research Institute of Metallurgy, Nanning 530023, China) Abstract: Sc2O3 with purity of 99.99% was prepared with titanium white waste acid and red mud as raw materials by processes of leaching, first-stage extraction and stripping, dissolution and hydrolysis, secondary extraction, acid washing, secondary stripping, oxalic acid precipitation and refining. The recovery of s c a n d i u m f r o m r e d m u d a n d t i t a n i u m w h i t e w a s t e a c i d i s 5 7 . 8 % a n d 9 3 . 3 % r e s p e c t i v e l y . K e y w o r d s : t i t a n i u m w h i t e w a s t e a c i d ; r e d m u d ; s c a n d i u m o x i d e ; p u r i f i c a t i o n v'lSirTTё(W5uIQn0oIQ05uP[0PSBR0o;mBR0*)YPge0vt]NTnmnI{eb g@w}Yv^(u[ 1 ] 0(W6qLu-NQNNl grzvw^8^NݔWw0w0w0!w4OuTMO_NOelǏ wI{Kbk[Ɩ[ 2 ] ]N N;NǏV6e gNё^\T z gё^\e4OuV6e[ 3 ] NP6RNvQ^(uV[ 4 ] 0 vMRbV}v|LNNQv^x+Tϑ:N1 0 ~ 3 0 m g / L wQ gV6e)R(uN