C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
23/261
C01G 23/04 (2006.01) B01D 11/04 (2006.01) C01B 7/07 (2006.01) C01G 33/00 (2006.01) C01G 37/00 (2006.01) C01G 49/06 (2006.01) C22B 34/12 (2006.01) C23G 1/36 (2006.01)
Patent
CA 1079488
ABSTRACT OF THE DISCLOSURE Production of titanium dioxide which is characterized by recovery of reusable H2SO4, high pure Fe oxide and hydroxide and fractional recovery of Mn, V and Cr, etc. from FeSO4?nH2O and waste acid of 20 - 40% H2SO4 containing abundant heavy metallic ions which are by-produced in the production of TiO2 by dis- solution of Ti raw materials such as ilmenite, steel production slag, such as electric furnace slag, convertor slag with H2SO4.
251611
Nishimura Sanji
Watanabe Morio
LandOfFree
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